bumping version to 0.7.2 for --options patch.

Conflicts:
	src/nodes.coffee

.gitignore

@@ -1,3 +1,4 @@
+raw
 presentation
 test.coffee
 parser.output

Cakefile

@@ -1,25 +1,42 @@
-fs: require 'fs'
-helpers: require('./lib/helpers').helpers
-CoffeeScript: require './lib/coffee-script'
+fs:            require 'fs'
+{helpers}:     require('./lib/helpers')
+CoffeeScript:  require './lib/coffee-script'
+{spawn, exec}: require('child_process')
+
+# ANSI Terminal Colors.
+red:   '\033[0;31m'
+green: '\033[0;32m'
+reset: '\033[0m'
 
 # Run a CoffeeScript through our node/coffee interpreter.
 run: (args) ->
-  proc: process.createChildProcess 'bin/coffee', args
-  proc.addListener 'error', (err) -> if err then puts err
+  proc: spawn 'bin/coffee', args
+  proc.stderr.addListener 'data', (buffer) -> puts buffer.toString()
+  proc.addListener 'exit', (status) -> process.exit(1) if status != 0
 
+# Log a message with a color.
+log: (message, color, explanation) ->
+  puts "$color$message$reset ${explanation or ''}"
 
 option '-p', '--prefix [DIR]', 'set the installation prefix for `cake install`'
 
 task 'install', 'install CoffeeScript into /usr/local (or --prefix)', (options) ->
   base: options.prefix or '/usr/local'
-  lib:  base + '/lib/coffee-script'
+  lib:  "$base/lib/coffee-script"
+  bin:  "$base/bin"
+  node: "~/.node_libraries/coffee-script"
+  puts  "Installing CoffeeScript to $lib"
+  puts  "Linking to $node"
+  puts  "Linking 'coffee' to $bin/coffee"
   exec([
-    'mkdir -p ' + lib
-    'cp -rf bin lib LICENSE README package.json src vendor ' + lib
-    'ln -sf ' + lib + '/bin/coffee ' + base + '/bin/coffee'
-    'ln -sf ' + lib + '/bin/cake ' + base + '/bin/cake'
+    "mkdir -p $lib $bin"
+    "cp -rf bin lib LICENSE README package.json src $lib"
+    "ln -sf $lib/bin/coffee $bin/coffee"
+    "ln -sf $lib/bin/cake $bin/cake"
+    "mkdir -p ~/.node_libraries"
+    "ln -sf $lib/lib $node"
   ].join(' && '), (err, stdout, stderr) ->
-   if err then print stderr
+    if err then print stderr else log 'done', green
   )
 
 
@@ -37,11 +54,11 @@ task 'build:full', 'rebuild the source twice, and run the tests', ->
 
 
 task 'build:parser', 'rebuild the Jison parser (run build first)', ->
-  require.paths.unshift 'vendor/jison/lib'
+  require 'jison'
   parser: require('./lib/grammar').parser
   js: parser.generate()
-  parser_path: 'lib/parser.js'
-  fs.writeFile parser_path, js
+  parserPath: 'lib/parser.js'
+  fs.writeFile parserPath, js
 
 
 task 'build:ultraviolet', 'build and install the Ultraviolet syntax highlighter', ->
@@ -69,31 +86,34 @@ task 'doc:underscore', 'rebuild the Underscore.coffee documentation page', ->
     throw err if err
 
 
+task 'loc', 'count the lines of source code in CoffeeScript', ->
+  exec "cat src/*.coffee | grep -v '^\\( *#\\|\\s*$\\)' | wc -l | tr -s ' '", (err, stdout) ->
+    print stdout
+
+
 task 'test', 'run the CoffeeScript language test suite', ->
   helpers.extend global, require 'assert'
-  passed_tests: failed_tests: 0
-  start_time: new Date()
-  original_ok: ok
+  passedTests: failedTests: 0
+  startTime:   new Date
+  originalOk:  ok
   helpers.extend global, {
-    ok: (args...) -> passed_tests += 1; original_ok(args...)
+    ok: (args...) -> passedTests += 1; originalOk(args...)
     CoffeeScript: CoffeeScript
   }
-  red: '\033[0;31m'
-  green: '\033[0;32m'
-  reset: '\033[0m'
-  on_exit:  ->
-    time: ((new Date() - start_time) / 1000).toFixed(2)
-    message: "passed $passed_tests tests in $time seconds$reset"
-    puts(if failed_tests then "${red}failed $failed_tests and $message" else "$green$message")
-  process.addListener 'exit', on_exit
+  process.addListener 'exit', ->
+    time: ((new Date - startTime) / 1000).toFixed(2)
+    message: "passed $passedTests tests in $time seconds$reset"
+    if failedTests
+      log "failed $failedTests and $message", red
+    else
+      log message, green
   fs.readdir 'test', (err, files) ->
     files.forEach (file) ->
       return unless file.match(/\.coffee$/i)
       source: path.join 'test', file
       fs.readFile source, (err, code) ->
         try
-          CoffeeScript.run code, {source: source}
+          CoffeeScript.run code.toString(), {source: source}
         catch err
-          failed_tests += 1
-          puts "${red}failed:${reset} $source"
-          puts err.stack
+          failedTests += 1
+          log "failed $source", red, '\n' + err.stack.toString()

README

@@ -25,6 +25,9 @@
   Install Node.js, and then the CoffeeScript compiler:
   sudo bin/cake install
   
+  Or, if you have the Node Package Manager installed:
+  sudo npm install coffee-script
+  
   Compile a script:
   coffee /path/to/script.coffee
   
@@ -39,4 +42,24 @@
 
   The source repository:
   git://github.com/jashkenas/coffee-script.git
-
+  
+  
+  Contributors:
+  
+  Stan Angeloff (StanAngeloff)
+  Jeremy Ashkenas (jashkenas)
+  Zach Carter (zaach)
+  Tim Cuthbertson (gfxmonk)
+  Mathieu D'Amours (matehat)
+  Chris Hoffman (cehoffman)
+  Jason Huggins (hugs)
+  Timothy Jones (Tesco)
+  Chris Lloyd (chrislloyd)
+  Matt Lyon (mattly)
+  Jeff Olson (olsonjeffery)
+  Nathan Ostgard (noonat)
+  Samuel Reis (grgh)
+  Tom Robinson (tlrobinson)
+  Tim Smart (Tim-Smart)
+  Dr. Nic Williams (drnic)
+  

Rakefile

@@ -4,6 +4,16 @@ require 'rake/testtask'
 require 'rubygems'
 require 'yui/compressor'
 
+HEADER = <<-EOS
+/**
+ * CoffeeScript Compiler v0.7.2
+ * http://coffeescript.org
+ *
+ * Copyright 2010, Jeremy Ashkenas
+ * Released under the MIT License
+ */
+EOS
+
 desc "Build the documentation page"
 task :doc do
   source = 'documentation/index.html.erb'
@@ -26,6 +36,6 @@ task :browser do
   sources = %w(helpers.js rewriter.js lexer.js parser.js scope.js nodes.js coffee-script.js)
   code    = sources.map {|s| File.read('lib/' + s) }.join('')
   code    = YUI::JavaScriptCompressor.new.compress(code)
-  File.open('extras/coffee-script.js', 'w+') {|f| f.write(code) }
+  File.open('extras/coffee-script.js', 'w+') {|f| f.write(HEADER + code) }
 end
 

documentation/coffee/aliases.coffee

@@ -1,9 +1,11 @@
 launch() if ignition is on
 
-volume: 10 if band isnt spinal_tap
+volume: 10 if band isnt SpinalTap
 
-let_the_wild_rumpus_begin() unless answer is no
+letTheWildRumpusBegin() unless answer is no
 
-if car.speed < speed_limit then accelerate()
+if car.speed < limit then accelerate()
+
+winner: yes if pick in [47, 92, 13]
 
 print "My name is " + @name

documentation/coffee/binding.coffee

@@ -1,5 +0,0 @@
-url: "documentation/coffee/binding.coffee"
-
-get_source: jQuery.get <- jQuery, url
-
-get_source (response) -> alert response

documentation/coffee/cake_tasks.coffee

@@ -1,3 +1,3 @@
 task 'test', 'run each of the unit tests', ->
-  for test in test_files
+  for test in files
     fs.readFile test, (err, code) -> eval coffee.compile code

documentation/coffee/conditionals.coffee

@@ -1,9 +1,9 @@
-mood: greatly_improved if singing
+mood: greatlyImproved if singing
 
-if happy and knows_it
-  claps_hands()
-  cha_cha_cha()
+if happy and knowsIt
+  clapsHands()
+  chaChaCha()
 
 date: if friday then sue else jill
 
-expensive: or do_the_math()
+options: or defaultOptions

documentation/coffee/expressions.coffee

@@ -1,8 +1,8 @@
 grade: (student) ->
-  if student.excellent_work
+  if student.excellentWork
     "A+"
-  else if student.okay_stuff
-    if student.tried_hard then "B" else "B-"
+  else if student.okayStuff
+    if student.triedHard then "B" else "B-"
   else
     "C"
 

documentation/coffee/multiple_return_values.coffee

@@ -1,5 +1,5 @@
-weather_report: (location) ->
+weatherReport: (location) ->
   # Make an Ajax request to fetch the weather...
   [location, 72, "Mostly Sunny"]
 
-[city, temp, forecast]: weather_report "Berkeley, CA"
+[city, temp, forecast]: weatherReport "Berkeley, CA"

documentation/coffee/object_comprehensions.coffee

@@ -1,4 +1,4 @@
-years_old: {max: 10, ida: 9, tim: 11}
+yearsOld: {max: 10, ida: 9, tim: 11}
 
-ages: for child, age of years_old
+ages: for child, age of yearsOld
   child + " is " + age

documentation/coffee/object_extraction.coffee

@@ -10,4 +10,4 @@ futurists: {
   }
 }
 
-{poet: {name: poet, address: [street, city]}}: futurists
+{poet: {name, address: [street, city]}}: futurists

documentation/coffee/objects_reserved.coffee

@@ -0,0 +1 @@
+$('.account').css {class: 'active'}

documentation/coffee/overview.coffee

@@ -1,9 +1,9 @@
 # Assignment:
 number: 42
-opposite_day: true
+opposite: true
 
 # Conditions:
-number: -42 if opposite_day
+number: -42 if opposite
 
 # Functions:
 square: (x) -> x * x
@@ -26,4 +26,4 @@ race: (winner, runners...) ->
 alert "I knew it!" if elvis?
 
 # Array comprehensions:
-cubed_list: math.cube num for num in list
+cubes: math.cube num for num in list

documentation/coffee/parallel_assignment.coffee

@@ -1,4 +1,4 @@
-bait: 1000
-and_switch: 0
+theBait: 1000
+theSwitch: 0
 
-[bait, and_switch]: [and_switch, bait]
+[theBait, theSwitch]: [theSwitch, theBait]

documentation/coffee/range_comprehensions.coffee

@@ -1,6 +1,6 @@
-countdown: num for num in [10..1]
+countdown: num for num in [10..1] by -1
 
-egg_delivery: ->
+deliverEggs: ->
   for i in [0...eggs.length] by 12
-    dozen_eggs: eggs[i...i+12]
-    deliver new egg_carton(dozen)
+    dozen: eggs[i...i+12]
+    deliver new eggCarton(dozen)

documentation/coffee/scope.coffee

@@ -1,5 +1,5 @@
-num: 1
-change_numbers: ->
-  new_num: -1
-  num: 10
-new_num: change_numbers()
+outer: 1
+changeNumbers: ->
+  inner: -1
+  outer: 10
+inner: changeNumbers()

documentation/coffee/slices.coffee

@@ -1,6 +1,6 @@
 numbers: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
 
-three_to_six: numbers[3..6]
+threeToSix: numbers[3..6]
 
-numbers_copy: numbers[0...numbers.length]
+copy: numbers[0...numbers.length]
 

documentation/coffee/soaks.coffee

@@ -1 +1 @@
-lottery.draw_winner()?.address?.zipcode
+lottery.drawWinner()?.address?.zipcode

documentation/coffee/splats.coffee

@@ -1,9 +1,9 @@
-gold: silver: the_field: "unknown"
+gold: silver: rest: "unknown"
 
-award_medals: (first, second, rest...) ->
-  gold:       first
-  silver:     second
-  the_field:  rest
+awardMedals: (first, second, rest...) ->
+  gold:   first
+  silver: second
+  rest:   rest
 
 contenders: [
   "Michael Phelps"
@@ -18,8 +18,8 @@ contenders: [
   "Usain Bolt"
 ]
 
-award_medals contenders...
+awardMedals contenders...
 
 alert "Gold: " + gold
 alert "Silver: " + silver
-alert "The Field: " + the_field
+alert "The Field: " + rest

documentation/coffee/strings.coffee

@@ -1,4 +1,4 @@
-moby_dick: "Call me Ishmael. Some years ago --
+mobyDick: "Call me Ishmael. Some years ago --
 never mind how long precisely -- having little
 or no money in my purse, and nothing particular
 to interest me on shore, I thought I would sail

documentation/coffee/switch.coffee

@@ -1,10 +1,10 @@
 switch day
-  when "Mon" then go_to_work()
-  when "Tue" then go_to_the_park()
-  when "Thu" then go_ice_fishing()
+  when "Mon" then goToWork()
+  when "Tue" then goToThePark()
+  when "Thu" then goIceFishing()
   when "Fri", "Sat"
-    if day is bingo_day
-      go_to_bingo()
-      go_dancing()
-  when "Sun" then go_to_church()
-  else go_to_work()
+    if day is bingoDay
+      goToBingo()
+      goDancing()
+  when "Sun" then goToChurch()
+  else goToWork()

documentation/coffee/try.coffee

@@ -1,7 +1,7 @@
 try
-  all_hell_breaks_loose()
-  cats_and_dogs_living_together()
+  allHellBreaksLoose()
+  catsAndDogsLivingTogether()
 catch error
   print error
 finally
-  clean_up()
+  cleanUp()

documentation/coffee/while.coffee

@@ -1,10 +1,10 @@
 # Econ 101
-if this.studying_economics
-  while supply > demand then buy()
-  while supply < demand then sell()
+if this.studyingEconomics
+  buy()  while supply > demand
+  sell() until supply > demand
 
 # Nursery Rhyme
 num: 6
-lyrics: while num -= 1
+lyrics: while num: - 1
   num + " little monkeys, jumping on the bed.
     One fell out and bumped his head."

documentation/docs/cake.html

@@ -1,4 +1,4 @@
-<!DOCTYPE html>  <html> <head>   <title>cake.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               cake.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p><code>cake</code> is a simplified version of <a href="http://www.gnu.org/software/make/">Make</a>
+<!DOCTYPE html>  <html> <head>   <title>cake.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               cake.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p><code>cake</code> is a simplified version of <a href="http://www.gnu.org/software/make/">Make</a>
 (<a href="http://rake.rubyforge.org/">Rake</a>, <a href="http://github.com/280north/jake">Jake</a>)
 for CoffeeScript. You define tasks with names and descriptions in a Cakefile,
 and can call them from the command line, or invoke them from other tasks.</p>
@@ -11,13 +11,14 @@ current directory's Cakefile.</p>             </td>             <td class="code"
 <span class="nv">CoffeeScript: </span><span class="nx">require</span> <span class="s1">&#39;./coffee-script&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Keep track of the list of defined tasks, the accepted options, and so on.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">tasks: </span><span class="p">{}</span>
 <span class="nv">options: </span><span class="p">{}</span>
 <span class="nv">switches: </span><span class="p">[]</span>
-<span class="nv">oparse: </span><span class="kc">null</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Mixin the top-level Cake functions for Cakefiles to use directly.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nx">helpers</span><span class="p">.</span><span class="nx">extend</span> <span class="nx">global</span><span class="p">,</span> <span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Define a Cake task with a short name, a sentence description,
+<span class="nv">oparse: </span><span class="kc">null</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Mixin the top-level Cake functions for Cakefiles to use directly.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nx">helpers</span><span class="p">.</span><span class="nx">extend</span> <span class="nx">global</span><span class="p">,</span> <span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Define a Cake task with a short name, an optional sentence description,
 and the function to run as the action itself.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">task: </span><span class="p">(</span><span class="nx">name</span><span class="p">,</span> <span class="nx">description</span><span class="p">,</span> <span class="nx">action</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nx">tasks</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="p">{</span><span class="nv">name: </span><span class="nx">name</span><span class="p">,</span> <span class="nv">description: </span><span class="nx">description</span><span class="p">,</span> <span class="nv">action: </span><span class="nx">action</span><span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Define an option that the Cakefile accepts. The parsed options hash,
+    <span class="p">[</span><span class="nx">action</span><span class="p">,</span> <span class="nx">description</span><span class="p">]</span><span class="o">:</span> <span class="p">[</span><span class="nx">description</span><span class="p">,</span> <span class="nx">action</span><span class="p">]</span> <span class="nx">unless</span> <span class="nx">action</span>
+    <span class="nx">tasks</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="p">{</span><span class="nx">name</span><span class="p">,</span> <span class="nx">description</span><span class="p">,</span> <span class="nx">action</span><span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Define an option that the Cakefile accepts. The parsed options hash,
 containing all of the command-line options passed, will be made available
 as the first argument to the action.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">option: </span><span class="p">(</span><span class="nx">letter</span><span class="p">,</span> <span class="nx">flag</span><span class="p">,</span> <span class="nx">description</span><span class="p">)</span> <span class="o">-&gt;</span>
     <span class="nx">switches</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="nx">letter</span><span class="p">,</span> <span class="nx">flag</span><span class="p">,</span> <span class="nx">description</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>Invoke another task in the current Cakefile.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">invoke: </span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nx">no_such_task</span> <span class="nx">name</span> <span class="nx">unless</span> <span class="nx">tasks</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span>
+    <span class="nx">missingTask</span> <span class="nx">name</span> <span class="nx">unless</span> <span class="nx">tasks</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span>
     <span class="nx">tasks</span><span class="p">[</span><span class="nx">name</span><span class="p">].</span><span class="nx">action</span> <span class="nx">options</span>
 
 <span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Run <code>cake</code>. Executes all of the tasks you pass, in order. Note that Node's
@@ -26,18 +27,19 @@ If no tasks are passed, print the help screen.</p>             </td>
   <span class="nx">path</span><span class="p">.</span><span class="nx">exists</span> <span class="s1">&#39;Cakefile&#39;</span><span class="p">,</span> <span class="p">(</span><span class="nx">exists</span><span class="p">)</span> <span class="o">-&gt;</span>
     <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="p">(</span><span class="s2">&quot;Cakefile not found in ${process.cwd()}&quot;</span><span class="p">)</span> <span class="nx">unless</span> <span class="nx">exists</span>
     <span class="nv">args: </span><span class="nx">process</span><span class="p">.</span><span class="nx">argv</span><span class="p">[</span><span class="mi">2</span><span class="p">...</span><span class="nx">process</span><span class="p">.</span><span class="nx">argv</span><span class="p">.</span><span class="nx">length</span><span class="p">]</span>
-    <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">fs</span><span class="p">.</span><span class="nx">readFileSync</span><span class="p">(</span><span class="s1">&#39;Cakefile&#39;</span><span class="p">),</span> <span class="p">{</span><span class="nv">source: </span><span class="s1">&#39;Cakefile&#39;</span><span class="p">}</span>
+    <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">fs</span><span class="p">.</span><span class="nx">readFileSync</span><span class="p">(</span><span class="s1">&#39;Cakefile&#39;</span><span class="p">).</span><span class="nx">toString</span><span class="p">(),</span> <span class="p">{</span><span class="nv">source: </span><span class="s1">&#39;Cakefile&#39;</span><span class="p">}</span>
     <span class="nv">oparse: </span><span class="k">new</span> <span class="nx">optparse</span><span class="p">.</span><span class="nx">OptionParser</span> <span class="nx">switches</span>
-    <span class="k">return</span> <span class="nx">print_tasks</span><span class="p">()</span> <span class="nx">unless</span> <span class="nx">args</span><span class="p">.</span><span class="nx">length</span>
+    <span class="k">return</span> <span class="nx">printTasks</span><span class="p">()</span> <span class="nx">unless</span> <span class="nx">args</span><span class="p">.</span><span class="nx">length</span>
     <span class="nv">options: </span><span class="nx">oparse</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">args</span><span class="p">)</span>
-    <span class="nx">invoke</span> <span class="nx">arg</span> <span class="k">for</span> <span class="nx">arg</span> <span class="k">in</span> <span class="nx">options</span><span class="p">.</span><span class="nx">arguments</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Display the list of Cake tasks in a format similar to <code>rake -T</code></p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">print_tasks: </span><span class="o">-&gt;</span>
+    <span class="nx">invoke</span> <span class="nx">arg</span> <span class="k">for</span> <span class="nx">arg</span> <span class="k">in</span> <span class="nx">options</span><span class="p">.</span><span class="nx">arguments</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Display the list of Cake tasks in a format similar to <code>rake -T</code></p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">printTasks: </span><span class="o">-&gt;</span>
   <span class="nx">puts</span> <span class="s1">&#39;&#39;</span>
   <span class="k">for</span> <span class="nx">name</span><span class="p">,</span> <span class="nx">task</span> <span class="k">of</span> <span class="nx">tasks</span>
     <span class="nv">spaces: </span><span class="mi">20</span> <span class="o">-</span> <span class="nx">name</span><span class="p">.</span><span class="nx">length</span>
     <span class="nv">spaces: </span><span class="k">if</span> <span class="nx">spaces</span> <span class="o">&gt;</span> <span class="mi">0</span> <span class="k">then</span> <span class="p">(</span><span class="s1">&#39; &#39;</span> <span class="k">for</span> <span class="nx">i</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">..</span><span class="nx">spaces</span><span class="p">]).</span><span class="nx">join</span><span class="p">(</span><span class="s1">&#39;&#39;</span><span class="p">)</span> <span class="k">else</span> <span class="s1">&#39;&#39;</span>
-    <span class="nx">puts</span> <span class="s2">&quot;cake $name$spaces # ${task.description}&quot;</span>
-  <span class="nx">puts</span> <span class="nx">oparse</span><span class="p">.</span><span class="nx">help</span><span class="p">()</span> <span class="k">if</span> <span class="nx">switches</span><span class="p">.</span><span class="nx">length</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Print an error and exit when attempting to all an undefined task.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">no_such_task: </span><span class="p">(</span><span class="nx">task</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="nx">process</span><span class="p">.</span><span class="nx">stdio</span><span class="p">.</span><span class="nx">writeError</span> <span class="s2">&quot;No such task: \&quot;$task\&quot;\n&quot;</span>
+    <span class="nv">desc: </span>  <span class="k">if</span> <span class="nx">task</span><span class="p">.</span><span class="nx">description</span> <span class="k">then</span> <span class="s2">&quot;# $task.description&quot;</span> <span class="k">else</span> <span class="s1">&#39;&#39;</span>
+    <span class="nx">puts</span> <span class="s2">&quot;cake $name$spaces $desc&quot;</span>
+  <span class="nx">puts</span> <span class="nx">oparse</span><span class="p">.</span><span class="nx">help</span><span class="p">()</span> <span class="k">if</span> <span class="nx">switches</span><span class="p">.</span><span class="nx">length</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Print an error and exit when attempting to all an undefined task.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">missingTask: </span><span class="p">(</span><span class="nx">task</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="nx">puts</span> <span class="s2">&quot;No such task: \&quot;$task\&quot;&quot;</span>
   <span class="nx">process</span><span class="p">.</span><span class="nx">exit</span> <span class="mi">1</span>
 
 </pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/coffee-script.html

@@ -1,4 +1,4 @@
-<!DOCTYPE html>  <html> <head>   <title>coffee-script.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               coffee-script.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>CoffeeScript can be used both on the server, as a command-line compiler based
+<!DOCTYPE html>  <html> <head>   <title>coffee-script.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               coffee-script.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>CoffeeScript can be used both on the server, as a command-line compiler based
 on Node.js/V8, or to run CoffeeScripts directly in the browser. This module
 contains the main entry functions for tokenzing, parsing, and compiling source
 CoffeeScript into JavaScript.</p>
@@ -16,13 +16,13 @@ execute all scripts present in <code>text/coffeescript</code> tags.</p>
   <span class="k">this</span><span class="p">.</span><span class="nv">exports: </span><span class="k">this</span><span class="p">.</span><span class="nv">CoffeeScript: </span><span class="p">{}</span>
   <span class="nv">Lexer: </span>       <span class="k">this</span><span class="p">.</span><span class="nx">Lexer</span>
   <span class="nv">parser: </span>      <span class="k">this</span><span class="p">.</span><span class="nx">parser</span>
-  <span class="nv">helpers: </span>     <span class="k">this</span><span class="p">.</span><span class="nx">helpers</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>The current CoffeeScript version number.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.VERSION: </span><span class="s1">&#39;0.5.6&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Instantiate a Lexer for our use here.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">lexer: </span><span class="k">new</span> <span class="nx">Lexer</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Compile a string of CoffeeScript code to JavaScript, using the Coffee/Jison
+  <span class="nv">helpers: </span>     <span class="k">this</span><span class="p">.</span><span class="nx">helpers</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>The current CoffeeScript version number.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.VERSION: </span><span class="s1">&#39;0.7.2&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Instantiate a Lexer for our use here.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">lexer: </span><span class="k">new</span> <span class="nx">Lexer</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Compile a string of CoffeeScript code to JavaScript, using the Coffee/Jison
 compiler.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.compile: compile: </span><span class="p">(</span><span class="nx">code</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">options: </span><span class="o">or</span> <span class="p">{}</span>
   <span class="k">try</span>
     <span class="p">(</span><span class="nx">parser</span><span class="p">.</span><span class="nx">parse</span> <span class="nx">lexer</span><span class="p">.</span><span class="nx">tokenize</span> <span class="nx">code</span><span class="p">).</span><span class="nx">compile</span> <span class="nx">options</span>
   <span class="k">catch</span> <span class="nx">err</span>
-    <span class="nv">err.message: </span><span class="s2">&quot;In ${options.source}, ${err.message}&quot;</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">source</span>
+    <span class="nv">err.message: </span><span class="s2">&quot;In $options.source, $err.message&quot;</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">source</span>
     <span class="k">throw</span> <span class="nx">err</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Tokenize a string of CoffeeScript code, and return the array of tokens.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.tokens: </span><span class="p">(</span><span class="nx">code</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nx">lexer</span><span class="p">.</span><span class="nx">tokenize</span> <span class="nx">code</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>Tokenize and parse a string of CoffeeScript code, and return the AST. You can
 then compile it by calling <code>.compile()</code> on the root, or traverse it by using
@@ -30,36 +30,31 @@ then compile it by calling <code>.compile()</code> on the root, or traverse it b
   <span class="nx">parser</span><span class="p">.</span><span class="nx">parse</span> <span class="nx">lexer</span><span class="p">.</span><span class="nx">tokenize</span> <span class="nx">code</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Compile and execute a string of CoffeeScript (on the server), correctly
 setting <code>__filename</code>, <code>__dirname</code>, and relative <code>require()</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.run: </span><span class="p">((</span><span class="nx">code</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">module.filename: __filename: </span><span class="nx">options</span><span class="p">.</span><span class="nx">source</span>
-  <span class="nv">__dirname: </span><span class="nx">path</span><span class="p">.</span><span class="nx">dirname</span> <span class="nx">__filename</span>
+  <span class="nv">__dirname: </span><span class="nx">path</span><span class="p">.</span><span class="nx">dirname</span><span class="p">(</span><span class="nx">__filename</span><span class="p">)</span>
   <span class="nb">eval</span> <span class="nx">exports</span><span class="p">.</span><span class="nx">compile</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">options</span>
-<span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Extend CoffeeScript with a custom language extension. It should hook in to
-the <strong>Lexer</strong> (as a peer of any of the lexer's tokenizing methods), and
-push a token on to the stack that contains a <strong>Node</strong> as the value (as a
-peer of the nodes in <a href="nodes.html">nodes.coffee</a>).</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.extend: </span><span class="p">(</span><span class="nx">func</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="nx">Lexer</span><span class="p">.</span><span class="nx">extensions</span><span class="p">.</span><span class="nx">push</span> <span class="nx">func</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>The real Lexer produces a generic stream of tokens. This object provides a
+<span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>The real Lexer produces a generic stream of tokens. This object provides a
 thin wrapper around it, compatible with the Jison API. We can then pass it
 directly as a "Jison lexer".</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">parser.lexer: </span><span class="p">{</span>
   <span class="nv">lex: </span><span class="o">-&gt;</span>
-    <span class="nv">token: </span><span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="err">@</span><span class="nx">pos</span><span class="p">]</span> <span class="o">or</span> <span class="p">[</span><span class="s2">&quot;&quot;</span><span class="p">]</span>
-    <span class="err">@</span><span class="nv">pos: </span><span class="o">+</span> <span class="mi">1</span>
+    <span class="nv">token: </span><span class="nx">@tokens</span><span class="p">[</span><span class="nx">@pos</span><span class="p">]</span> <span class="o">or</span> <span class="p">[</span><span class="s2">&quot;&quot;</span><span class="p">]</span>
+    <span class="vi">@pos: </span><span class="o">+</span> <span class="mi">1</span>
     <span class="k">this</span><span class="p">.</span><span class="nv">yylineno: </span><span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
     <span class="k">this</span><span class="p">.</span><span class="nv">yytext: </span>  <span class="nx">token</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
     <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
   <span class="nv">setInput: </span><span class="p">(</span><span class="nx">tokens</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nv">tokens: </span><span class="nx">tokens</span>
-    <span class="err">@</span><span class="nv">pos: </span><span class="mi">0</span>
+    <span class="vi">@tokens: </span><span class="nx">tokens</span>
+    <span class="vi">@pos: </span><span class="mi">0</span>
   <span class="nv">upcomingInput: </span><span class="o">-&gt;</span> <span class="s2">&quot;&quot;</span>
-  <span class="nv">showPosition: </span><span class="o">-&gt;</span> <span class="err">@</span><span class="nx">pos</span>
-<span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Activate CoffeeScript in the browser by having it compile and evaluate
+<span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Activate CoffeeScript in the browser by having it compile and evaluate
 all script tags with a content-type of <code>text/coffeescript</code>. This happens
 on page load. Unfortunately, the text contents of remote scripts cannot be
 accessed from the browser, so only inline script tags will work.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="k">if</span> <span class="nb">document</span><span class="o">?</span> <span class="o">and</span> <span class="nb">document</span><span class="p">.</span><span class="nx">getElementsByTagName</span>
-  <span class="nv">process_scripts: </span><span class="o">-&gt;</span>
+  <span class="nv">processScripts: </span><span class="o">-&gt;</span>
     <span class="k">for</span> <span class="nx">tag</span> <span class="k">in</span> <span class="nb">document</span><span class="p">.</span><span class="nx">getElementsByTagName</span><span class="p">(</span><span class="s1">&#39;script&#39;</span><span class="p">)</span> <span class="k">when</span> <span class="nx">tag</span><span class="p">.</span><span class="nx">type</span> <span class="o">is</span> <span class="s1">&#39;text/coffeescript&#39;</span>
       <span class="nb">eval</span> <span class="nx">exports</span><span class="p">.</span><span class="nx">compile</span> <span class="nx">tag</span><span class="p">.</span><span class="nx">innerHTML</span>
   <span class="k">if</span> <span class="nb">window</span><span class="p">.</span><span class="nx">addEventListener</span>
-    <span class="nb">window</span><span class="p">.</span><span class="nx">addEventListener</span> <span class="s1">&#39;load&#39;</span><span class="p">,</span> <span class="nx">process_scripts</span><span class="p">,</span> <span class="kc">false</span>
+    <span class="nb">window</span><span class="p">.</span><span class="nx">addEventListener</span> <span class="s1">&#39;load&#39;</span><span class="p">,</span> <span class="nx">processScripts</span><span class="p">,</span> <span class="kc">false</span>
   <span class="k">else</span> <span class="k">if</span> <span class="nb">window</span><span class="p">.</span><span class="nx">attachEvent</span>
-    <span class="nb">window</span><span class="p">.</span><span class="nx">attachEvent</span> <span class="s1">&#39;onload&#39;</span><span class="p">,</span> <span class="nx">process_scripts</span>
+    <span class="nb">window</span><span class="p">.</span><span class="nx">attachEvent</span> <span class="s1">&#39;onload&#39;</span><span class="p">,</span> <span class="nx">processScripts</span>
 
 </pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/command.html

@@ -1,11 +1,12 @@
-<!DOCTYPE html>  <html> <head>   <title>command.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               command.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The <code>coffee</code> utility. Handles command-line compilation of CoffeeScript
+<!DOCTYPE html>  <html> <head>   <title>command.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               command.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The <code>coffee</code> utility. Handles command-line compilation of CoffeeScript
 into various forms: saved into <code>.js</code> files or printed to stdout, piped to
 <a href="http://javascriptlint.com/">JSLint</a> or recompiled every time the source is
 saved, printed as a token stream or as the syntax tree, or launch an
-interactive REPL.</p>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-2">#</a>               </div>               <p>External dependencies.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">fs: </span>          <span class="nx">require</span> <span class="s1">&#39;fs&#39;</span>
-<span class="nv">path: </span>        <span class="nx">require</span> <span class="s1">&#39;path&#39;</span>
-<span class="nv">optparse: </span>    <span class="nx">require</span> <span class="s1">&#39;./optparse&#39;</span>
-<span class="nv">CoffeeScript: </span><span class="nx">require</span> <span class="s1">&#39;./coffee-script&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>The help banner that is printed when <code>coffee</code> is called without arguments.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">BANNER: </span><span class="s1">&#39;&#39;&#39;</span>
+interactive REPL.</p>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-2">#</a>               </div>               <p>External dependencies.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">fs: </span>           <span class="nx">require</span> <span class="s1">&#39;fs&#39;</span>
+<span class="nv">path: </span>         <span class="nx">require</span> <span class="s1">&#39;path&#39;</span>
+<span class="nv">optparse: </span>     <span class="nx">require</span> <span class="s1">&#39;./optparse&#39;</span>
+<span class="nv">CoffeeScript: </span> <span class="nx">require</span> <span class="s1">&#39;./coffee-script&#39;</span>
+<span class="p">{</span><span class="nx">spawn</span><span class="p">,</span> <span class="nx">exec</span><span class="p">}</span><span class="o">:</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;child_process&#39;</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>The help banner that is printed when <code>coffee</code> is called without arguments.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">BANNER: </span><span class="s1">&#39;&#39;&#39;</span>
 <span class="s1">  coffee compiles CoffeeScript source files into JavaScript.</span>
 
 <span class="s1">  Usage:</span>
@@ -26,90 +27,105 @@ interactive REPL.</p>             </td>             <td class="code">
   <span class="p">[</span><span class="s1">&#39;-h&#39;</span><span class="p">,</span> <span class="s1">&#39;--help&#39;</span><span class="p">,</span>          <span class="s1">&#39;display this help message&#39;</span><span class="p">]</span>
 <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Top-level objects shared by all the functions.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">options: </span><span class="p">{}</span>
 <span class="nv">sources: </span><span class="p">[]</span>
-<span class="nv">option_parser: </span><span class="kc">null</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Run <code>coffee</code> by parsing passed options and determining what action to take.
+<span class="nv">optionParser: </span><span class="kc">null</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Run <code>coffee</code> by parsing passed options and determining what action to take.
 Many flags cause us to divert before compiling anything. Flags passed after
 <code>--</code> will be passed verbatim to your script as arguments in <code>process.argv</code></p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.run: </span><span class="o">-&gt;</span>
-  <span class="nx">parse_options</span><span class="p">()</span>
+  <span class="nx">parseOptions</span><span class="p">()</span>
   <span class="k">return</span> <span class="nx">usage</span><span class="p">()</span>                              <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">help</span>
   <span class="k">return</span> <span class="nx">version</span><span class="p">()</span>                            <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">version</span>
   <span class="k">return</span> <span class="nx">require</span> <span class="s1">&#39;./repl&#39;</span>                     <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">interactive</span>
-  <span class="k">return</span> <span class="nx">compile_stdio</span><span class="p">()</span>                      <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">stdio</span>
-  <span class="k">return</span> <span class="nx">compile_script</span> <span class="s1">&#39;console&#39;</span><span class="p">,</span> <span class="nx">sources</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nb">eval</span>
-  <span class="k">return</span> <span class="nx">usage</span><span class="p">()</span>                              <span class="nx">unless</span> <span class="nx">sources</span><span class="p">.</span><span class="nx">length</span>
+  <span class="k">return</span> <span class="nx">compileStdio</span><span class="p">()</span>                       <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">stdio</span>
+  <span class="k">return</span> <span class="nx">compileScript</span> <span class="s1">&#39;console&#39;</span><span class="p">,</span> <span class="nx">sources</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>  <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nb">eval</span>
+  <span class="k">return</span> <span class="nx">require</span> <span class="s1">&#39;./repl&#39;</span>                     <span class="nx">unless</span> <span class="nx">sources</span><span class="p">.</span><span class="nx">length</span>
   <span class="nv">separator: </span><span class="nx">sources</span><span class="p">.</span><span class="nx">indexOf</span> <span class="s1">&#39;--&#39;</span>
   <span class="nv">flags: </span><span class="p">[]</span>
   <span class="k">if</span> <span class="nx">separator</span> <span class="o">&gt;=</span> <span class="mi">0</span>
-    <span class="nv">flags: </span><span class="nx">sources</span><span class="p">[(</span><span class="nx">separator</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)...</span><span class="nx">sources</span><span class="p">.</span><span class="nx">length</span><span class="p">]</span>
+    <span class="nv">flags: </span>  <span class="nx">sources</span><span class="p">[(</span><span class="nx">separator</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)...</span><span class="nx">sources</span><span class="p">.</span><span class="nx">length</span><span class="p">]</span>
     <span class="nv">sources: </span><span class="nx">sources</span><span class="p">[</span><span class="mi">0</span><span class="p">...</span><span class="nx">separator</span><span class="p">]</span>
+  <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">run</span>
+    <span class="nv">flags: </span>  <span class="nx">sources</span><span class="p">[</span><span class="mi">1</span><span class="p">..</span><span class="nx">sources</span><span class="p">.</span><span class="nx">length</span><span class="p">].</span><span class="nx">concat</span> <span class="nx">flags</span>
+    <span class="nv">sources: </span><span class="p">[</span><span class="nx">sources</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span>
   <span class="nv">process.ARGV: process.argv: </span><span class="nx">flags</span>
-  <span class="nx">watch_scripts</span><span class="p">()</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">watch</span>
-  <span class="nx">compile_scripts</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>Asynchronously read in each CoffeeScript in a list of source files and
-compile them.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">compile_scripts: </span><span class="o">-&gt;</span>
-  <span class="nv">compile: </span><span class="p">(</span><span class="nx">source</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nx">path</span><span class="p">.</span><span class="nx">exists</span> <span class="nx">source</span><span class="p">,</span> <span class="p">(</span><span class="nx">exists</span><span class="p">)</span> <span class="o">-&gt;</span>
-      <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;File not found: $source&quot;</span> <span class="nx">unless</span> <span class="nx">exists</span>
-      <span class="nx">fs</span><span class="p">.</span><span class="nx">readFile</span> <span class="nx">source</span><span class="p">,</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">compile_script</span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span>
-  <span class="nx">compile</span><span class="p">(</span><span class="nx">source</span><span class="p">)</span> <span class="k">for</span> <span class="nx">source</span> <span class="k">in</span> <span class="nx">sources</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Compile a single source script, containing the given code, according to the
-requested options. Both compile_scripts and watch_scripts share this method
-in common. If evaluating the script directly sets <code>__filename</code>, <code>__dirname</code>
-and <code>module.filename</code> to be correct relative to the script's path.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">compile_script: </span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="nx">compileScripts</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>Asynchronously read in each CoffeeScript in a list of source files and
+compile them. If a directory is passed, recursively compile all
+'.coffee' extension source files in it and all subdirectories.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">compileScripts: </span><span class="o">-&gt;</span>
+  <span class="k">for</span> <span class="nx">source</span> <span class="k">in</span> <span class="nx">sources</span>
+    <span class="nv">base: </span><span class="nx">source</span>
+    <span class="nv">compile: </span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">topLevel</span><span class="p">)</span> <span class="o">-&gt;</span>
+      <span class="nx">path</span><span class="p">.</span><span class="nx">exists</span> <span class="nx">source</span><span class="p">,</span> <span class="p">(</span><span class="nx">exists</span><span class="p">)</span> <span class="o">-&gt;</span>
+        <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;File not found: $source&quot;</span> <span class="nx">unless</span> <span class="nx">exists</span>
+        <span class="nx">fs</span><span class="p">.</span><span class="nx">stat</span> <span class="nx">source</span><span class="p">,</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">stats</span><span class="p">)</span> <span class="o">-&gt;</span>
+          <span class="k">if</span> <span class="nx">stats</span><span class="p">.</span><span class="nx">isDirectory</span><span class="p">()</span>
+            <span class="nx">fs</span><span class="p">.</span><span class="nx">readdir</span> <span class="nx">source</span><span class="p">,</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">files</span><span class="p">)</span> <span class="o">-&gt;</span>
+              <span class="k">for</span> <span class="nx">file</span> <span class="k">in</span> <span class="nx">files</span>
+                <span class="nx">compile</span> <span class="nx">path</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">file</span><span class="p">)</span>
+          <span class="k">else</span> <span class="k">if</span> <span class="nx">topLevel</span> <span class="o">or</span> <span class="nx">path</span><span class="p">.</span><span class="nx">extname</span><span class="p">(</span><span class="nx">source</span><span class="p">)</span> <span class="o">is</span> <span class="s1">&#39;.coffee&#39;</span>
+            <span class="nx">fs</span><span class="p">.</span><span class="nx">readFile</span> <span class="nx">source</span><span class="p">,</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">compileScript</span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">code</span><span class="p">.</span><span class="nx">toString</span><span class="p">(),</span> <span class="nx">base</span><span class="p">)</span>
+            <span class="nx">watch</span> <span class="nx">source</span><span class="p">,</span> <span class="nx">base</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">watch</span>
+    <span class="nx">compile</span> <span class="nx">source</span><span class="p">,</span> <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Compile a single source script, containing the given code, according to the
+requested options. If evaluating the script directly sets <code>__filename</code>,
+<code>__dirname</code> and <code>module.filename</code> to be correct relative to the script's path.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">compileScript: </span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">base</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">o: </span><span class="nx">options</span>
-  <span class="nv">code_opts: </span><span class="nx">compile_options</span> <span class="nx">source</span>
+  <span class="nv">codeOpts: </span><span class="nx">compileOptions</span> <span class="nx">source</span>
   <span class="k">try</span>
-    <span class="k">if</span>      <span class="nx">o</span><span class="p">.</span><span class="nx">tokens</span>      <span class="k">then</span> <span class="nx">print_tokens</span> <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">tokens</span> <span class="nx">code</span>
+    <span class="k">if</span>      <span class="nx">o</span><span class="p">.</span><span class="nx">tokens</span>      <span class="k">then</span> <span class="nx">printTokens</span> <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">tokens</span> <span class="nx">code</span>
     <span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">nodes</span>       <span class="k">then</span> <span class="nx">puts</span> <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">nodes</span><span class="p">(</span><span class="nx">code</span><span class="p">).</span><span class="nx">toString</span><span class="p">()</span>
-    <span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">run</span>         <span class="k">then</span> <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">code_opts</span>
+    <span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">run</span>         <span class="k">then</span> <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">codeOpts</span>
     <span class="k">else</span>
-      <span class="nv">js: </span><span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">compile</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">code_opts</span>
-      <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">print</span>          <span class="k">then</span> <span class="nx">process</span><span class="p">.</span><span class="nx">stdio</span><span class="p">.</span><span class="nx">write</span> <span class="nx">js</span>
-      <span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">compile</span>   <span class="k">then</span> <span class="nx">write_js</span> <span class="nx">source</span><span class="p">,</span> <span class="nx">js</span>
+      <span class="nv">js: </span><span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">compile</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">codeOpts</span>
+      <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">print</span>          <span class="k">then</span> <span class="nx">print</span> <span class="nx">js</span>
+      <span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">compile</span>   <span class="k">then</span> <span class="nx">writeJs</span> <span class="nx">source</span><span class="p">,</span> <span class="nx">js</span><span class="p">,</span> <span class="nx">base</span>
       <span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">lint</span>      <span class="k">then</span> <span class="nx">lint</span> <span class="nx">js</span>
   <span class="k">catch</span> <span class="nx">err</span>
-    <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">watch</span>            <span class="k">then</span> <span class="nx">puts</span> <span class="nx">err</span><span class="p">.</span><span class="nx">message</span> <span class="k">else</span> <span class="k">throw</span> <span class="nx">err</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Attach the appropriate listeners to compile scripts incoming over <strong>stdin</strong>,
-and write them back to <strong>stdout</strong>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">compile_stdio: </span><span class="o">-&gt;</span>
+    <span class="nx">error</span><span class="p">(</span><span class="nx">err</span><span class="p">.</span><span class="nx">stack</span><span class="p">)</span> <span class="o">and</span> <span class="nx">process</span><span class="p">.</span><span class="nx">exit</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">o</span><span class="p">.</span><span class="nx">watch</span>
+    <span class="nx">puts</span> <span class="nx">err</span><span class="p">.</span><span class="nx">message</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Attach the appropriate listeners to compile scripts incoming over <strong>stdin</strong>,
+and write them back to <strong>stdout</strong>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">compileStdio: </span><span class="o">-&gt;</span>
   <span class="nv">code: </span><span class="s1">&#39;&#39;</span>
-  <span class="nx">process</span><span class="p">.</span><span class="nx">stdio</span><span class="p">.</span><span class="nx">open</span><span class="p">()</span>
-  <span class="nx">process</span><span class="p">.</span><span class="nx">stdio</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;data&#39;</span><span class="p">,</span> <span class="p">(</span><span class="nx">string</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nv">code: </span><span class="o">+</span> <span class="nx">string</span> <span class="k">if</span> <span class="nx">string</span>
-  <span class="nx">process</span><span class="p">.</span><span class="nx">stdio</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;close&#39;</span><span class="p">,</span> <span class="o">-&gt;</span>
-    <span class="nx">compile_script</span> <span class="s1">&#39;stdio&#39;</span><span class="p">,</span> <span class="nx">code</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Watch a list of source CoffeeScript files using <code>fs.watchFile</code>, recompiling
-them every time the files are updated. May be used in combination with other
-options, such as <code>--lint</code> or <code>--print</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">watch_scripts: </span><span class="o">-&gt;</span>
-  <span class="nv">watch: </span><span class="p">(</span><span class="nx">source</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nx">fs</span><span class="p">.</span><span class="nx">watchFile</span> <span class="nx">source</span><span class="p">,</span> <span class="p">{</span><span class="nv">persistent: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">interval: </span><span class="mi">500</span><span class="p">},</span> <span class="p">(</span><span class="nx">curr</span><span class="p">,</span> <span class="nx">prev</span><span class="p">)</span> <span class="o">-&gt;</span>
-      <span class="k">return</span> <span class="k">if</span> <span class="nx">curr</span><span class="p">.</span><span class="nx">mtime</span><span class="p">.</span><span class="nx">getTime</span><span class="p">()</span> <span class="o">is</span> <span class="nx">prev</span><span class="p">.</span><span class="nx">mtime</span><span class="p">.</span><span class="nx">getTime</span><span class="p">()</span>
-      <span class="nx">fs</span><span class="p">.</span><span class="nx">readFile</span> <span class="nx">source</span><span class="p">,</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">compile_script</span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span>
-  <span class="nx">watch</span><span class="p">(</span><span class="nx">source</span><span class="p">)</span> <span class="k">for</span> <span class="nx">source</span> <span class="k">in</span> <span class="nx">sources</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Write out a JavaScript source file with the compiled code. By default, files
+  <span class="nv">stdin: </span><span class="nx">process</span><span class="p">.</span><span class="nx">openStdin</span><span class="p">()</span>
+  <span class="nx">stdin</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;data&#39;</span><span class="p">,</span> <span class="p">(</span><span class="nx">buffer</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="nv">code: </span><span class="o">+</span> <span class="nx">buffer</span><span class="p">.</span><span class="nx">toString</span><span class="p">()</span> <span class="k">if</span> <span class="nx">buffer</span>
+  <span class="nx">stdin</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;end&#39;</span><span class="p">,</span> <span class="o">-&gt;</span>
+    <span class="nx">compileScript</span> <span class="s1">&#39;stdio&#39;</span><span class="p">,</span> <span class="nx">code</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Watch a source CoffeeScript file using <code>fs.watchFile</code>, recompiling it every
+time the file is updated. May be used in combination with other options,
+such as <code>--lint</code> or <code>--print</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">watch: </span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">base</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="nx">fs</span><span class="p">.</span><span class="nx">watchFile</span> <span class="nx">source</span><span class="p">,</span> <span class="p">{</span><span class="nv">persistent: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">interval: </span><span class="mi">500</span><span class="p">},</span> <span class="p">(</span><span class="nx">curr</span><span class="p">,</span> <span class="nx">prev</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">curr</span><span class="p">.</span><span class="nx">mtime</span><span class="p">.</span><span class="nx">getTime</span><span class="p">()</span> <span class="o">is</span> <span class="nx">prev</span><span class="p">.</span><span class="nx">mtime</span><span class="p">.</span><span class="nx">getTime</span><span class="p">()</span>
+    <span class="nx">fs</span><span class="p">.</span><span class="nx">readFile</span> <span class="nx">source</span><span class="p">,</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">compileScript</span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">code</span><span class="p">.</span><span class="nx">toString</span><span class="p">(),</span> <span class="nx">base</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Write out a JavaScript source file with the compiled code. By default, files
 are written out in <code>cwd</code> as <code>.js</code> files with the same name, but the output
-directory can be customized with <code>--output</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">write_js: </span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">js</span><span class="p">)</span> <span class="o">-&gt;</span>
+directory can be customized with <code>--output</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">writeJs: </span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">js</span><span class="p">,</span> <span class="nx">base</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">filename: </span><span class="nx">path</span><span class="p">.</span><span class="nx">basename</span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">path</span><span class="p">.</span><span class="nx">extname</span><span class="p">(</span><span class="nx">source</span><span class="p">))</span> <span class="o">+</span> <span class="s1">&#39;.js&#39;</span>
-  <span class="nv">dir: </span>     <span class="nx">options</span><span class="p">.</span><span class="nx">output</span> <span class="o">or</span> <span class="nx">path</span><span class="p">.</span><span class="nx">dirname</span><span class="p">(</span><span class="nx">source</span><span class="p">)</span>
-  <span class="nv">js_path: </span> <span class="nx">path</span><span class="p">.</span><span class="nx">join</span> <span class="nx">dir</span><span class="p">,</span> <span class="nx">filename</span>
-  <span class="nx">fs</span><span class="p">.</span><span class="nx">writeFile</span> <span class="nx">js_path</span><span class="p">,</span> <span class="nx">js</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>Pipe compiled JS through JSLint (requires a working <code>jsl</code> command), printing
+  <span class="nv">srcDir: </span>  <span class="nx">path</span><span class="p">.</span><span class="nx">dirname</span> <span class="nx">source</span>
+  <span class="nv">baseDir: </span> <span class="nx">srcDir</span><span class="p">.</span><span class="nx">substring</span> <span class="nx">base</span><span class="p">.</span><span class="nx">length</span>
+  <span class="nv">dir: </span>     <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">output</span> <span class="k">then</span> <span class="nx">path</span><span class="p">.</span><span class="nx">join</span> <span class="nx">options</span><span class="p">.</span><span class="nx">output</span><span class="p">,</span> <span class="nx">baseDir</span> <span class="k">else</span> <span class="nx">srcDir</span>
+  <span class="nv">jsPath: </span>  <span class="nx">path</span><span class="p">.</span><span class="nx">join</span> <span class="nx">dir</span><span class="p">,</span> <span class="nx">filename</span>
+  <span class="nv">compile: </span> <span class="o">-&gt;</span>
+    <span class="nx">fs</span><span class="p">.</span><span class="nx">writeFile</span> <span class="nx">jsPath</span><span class="p">,</span> <span class="nx">js</span><span class="p">,</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="o">-&gt;</span>
+      <span class="nx">puts</span> <span class="s2">&quot;Compiled $source&quot;</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">compile</span> <span class="o">and</span> <span class="nx">options</span><span class="p">.</span><span class="nx">watch</span>
+  <span class="nx">path</span><span class="p">.</span><span class="nx">exists</span> <span class="nx">dir</span><span class="p">,</span> <span class="p">(</span><span class="nx">exists</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="k">if</span> <span class="nx">exists</span> <span class="k">then</span> <span class="nx">compile</span><span class="p">()</span> <span class="k">else</span> <span class="nx">exec</span> <span class="s2">&quot;mkdir -p $dir&quot;</span><span class="p">,</span> <span class="nx">compile</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>Pipe compiled JS through JSLint (requires a working <code>jsl</code> command), printing
 any errors or warnings that arise.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">lint: </span><span class="p">(</span><span class="nx">js</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="nv">jsl: </span><span class="nx">process</span><span class="p">.</span><span class="nx">createChildProcess</span><span class="p">(</span><span class="s1">&#39;jsl&#39;</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;-nologo&#39;</span><span class="p">,</span> <span class="s1">&#39;-stdin&#39;</span><span class="p">])</span>
-  <span class="nx">jsl</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;output&#39;</span><span class="p">,</span> <span class="p">(</span><span class="nx">result</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nx">puts</span> <span class="nx">result</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\n/g</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">)</span> <span class="k">if</span> <span class="nx">result</span>
-  <span class="nx">jsl</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;error&#39;</span><span class="p">,</span> <span class="p">(</span><span class="nx">result</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nx">puts</span> <span class="nx">result</span> <span class="k">if</span> <span class="nx">result</span>
-  <span class="nx">jsl</span><span class="p">.</span><span class="nx">write</span> <span class="nx">js</span>
-  <span class="nx">jsl</span><span class="p">.</span><span class="nx">close</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-13">#</a>               </div>               <p>Pretty-print a stream of tokens.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">print_tokens: </span><span class="p">(</span><span class="nx">tokens</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="nv">printIt: </span><span class="p">(</span><span class="nx">buffer</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">print</span> <span class="nx">buffer</span><span class="p">.</span><span class="nx">toString</span><span class="p">()</span>
+  <span class="nv">jsl: </span><span class="nx">spawn</span> <span class="s1">&#39;jsl&#39;</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;-nologo&#39;</span><span class="p">,</span> <span class="s1">&#39;-stdin&#39;</span><span class="p">]</span>
+  <span class="nx">jsl</span><span class="p">.</span><span class="nx">stdout</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;data&#39;</span><span class="p">,</span> <span class="nx">printIt</span>
+  <span class="nx">jsl</span><span class="p">.</span><span class="nx">stderr</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;data&#39;</span><span class="p">,</span> <span class="nx">printIt</span>
+  <span class="nx">jsl</span><span class="p">.</span><span class="nx">stdin</span><span class="p">.</span><span class="nx">write</span> <span class="nx">js</span>
+  <span class="nx">jsl</span><span class="p">.</span><span class="nx">stdin</span><span class="p">.</span><span class="nx">end</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-13">#</a>               </div>               <p>Pretty-print a stream of tokens.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">printTokens: </span><span class="p">(</span><span class="nx">tokens</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">strings: </span><span class="k">for</span> <span class="nx">token</span> <span class="k">in</span> <span class="nx">tokens</span>
     <span class="p">[</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span><span class="p">]</span><span class="o">:</span> <span class="p">[</span><span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">token</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">toString</span><span class="p">().</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\n/</span><span class="p">,</span> <span class="s1">&#39;\\n&#39;</span><span class="p">)]</span>
     <span class="s2">&quot;[$tag $value]&quot;</span>
   <span class="nx">puts</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="s1">&#39; &#39;</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-14">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-14">#</a>               </div>               <p>Use the <a href="optparse.html">OptionParser module</a> to extract all options from
-<code>process.argv</code> that are specified in <code>SWITCHES</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">parse_options: </span><span class="o">-&gt;</span>
-  <span class="nv">option_parser: </span><span class="k">new</span> <span class="nx">optparse</span><span class="p">.</span><span class="nx">OptionParser</span> <span class="nx">SWITCHES</span><span class="p">,</span> <span class="nx">BANNER</span>
-  <span class="nv">o: options: </span>   <span class="nx">option_parser</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">process</span><span class="p">.</span><span class="nx">argv</span><span class="p">)</span>
+<code>process.argv</code> that are specified in <code>SWITCHES</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">parseOptions: </span><span class="o">-&gt;</span>
+  <span class="nv">optionParser: </span> <span class="k">new</span> <span class="nx">optparse</span><span class="p">.</span><span class="nx">OptionParser</span> <span class="nx">SWITCHES</span><span class="p">,</span> <span class="nx">BANNER</span>
+  <span class="nv">o: options: </span>   <span class="nx">optionParser</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">process</span><span class="p">.</span><span class="nx">argv</span><span class="p">[</span><span class="mi">2</span><span class="p">...</span><span class="nx">process</span><span class="p">.</span><span class="nx">argv</span><span class="p">.</span><span class="nx">length</span><span class="p">])</span>
   <span class="nv">options.run: </span>  <span class="o">not</span> <span class="p">(</span><span class="nx">o</span><span class="p">.</span><span class="nx">compile</span> <span class="o">or</span> <span class="nx">o</span><span class="p">.</span><span class="nx">print</span> <span class="o">or</span> <span class="nx">o</span><span class="p">.</span><span class="nx">lint</span><span class="p">)</span>
   <span class="nv">options.print: </span><span class="o">!!</span>  <span class="p">(</span><span class="nx">o</span><span class="p">.</span><span class="nx">print</span> <span class="o">or</span> <span class="p">(</span><span class="nx">o</span><span class="p">.</span><span class="nb">eval</span> <span class="o">or</span> <span class="nx">o</span><span class="p">.</span><span class="nx">stdio</span> <span class="o">and</span> <span class="nx">o</span><span class="p">.</span><span class="nx">compile</span><span class="p">))</span>
-  <span class="nv">sources: </span>      <span class="nx">options</span><span class="p">.</span><span class="nx">arguments</span><span class="p">[</span><span class="mi">2</span><span class="p">...</span><span class="nx">options</span><span class="p">.</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">length</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-15">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-15">#</a>               </div>               <p>The compile-time options to pass to the CoffeeScript compiler.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">compile_options: </span><span class="p">(</span><span class="nx">source</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="nv">o: </span><span class="p">{</span><span class="nv">source: </span><span class="nx">source</span><span class="p">}</span>
-  <span class="nx">o</span><span class="p">[</span><span class="s1">&#39;no_wrap&#39;</span><span class="p">]</span><span class="o">:</span> <span class="nx">options</span><span class="p">[</span><span class="s1">&#39;no-wrap&#39;</span><span class="p">]</span>
+  <span class="nv">sources: </span>      <span class="nx">options</span><span class="p">.</span><span class="nx">arguments</span></pre></div>             </td>           </tr>                               <tr id="section-15">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-15">#</a>               </div>               <p>The compile-time options to pass to the CoffeeScript compiler.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">compileOptions: </span><span class="p">(</span><span class="nx">source</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="nv">o: </span><span class="p">{</span><span class="nx">source</span><span class="p">}</span>
+  <span class="nv">o.noWrap: </span><span class="nx">options</span><span class="p">[</span><span class="s1">&#39;no-wrap&#39;</span><span class="p">]</span>
   <span class="nx">o</span></pre></div>             </td>           </tr>                               <tr id="section-16">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-16">#</a>               </div>               <p>Print the <code>--help</code> usage message and exit.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">usage: </span><span class="o">-&gt;</span>
-  <span class="nx">puts</span> <span class="nx">option_parser</span><span class="p">.</span><span class="nx">help</span><span class="p">()</span>
+  <span class="nx">puts</span> <span class="nx">optionParser</span><span class="p">.</span><span class="nx">help</span><span class="p">()</span>
   <span class="nx">process</span><span class="p">.</span><span class="nx">exit</span> <span class="mi">0</span></pre></div>             </td>           </tr>                               <tr id="section-17">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-17">#</a>               </div>               <p>Print the <code>--version</code> message and exit.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">version: </span><span class="o">-&gt;</span>
-  <span class="nx">puts</span> <span class="s2">&quot;CoffeeScript version ${CoffeeScript.VERSION}&quot;</span>
+  <span class="nx">puts</span> <span class="s2">&quot;CoffeeScript version $CoffeeScript.VERSION&quot;</span>
   <span class="nx">process</span><span class="p">.</span><span class="nx">exit</span> <span class="mi">0</span>
 
 </pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/docco.css

@@ -124,7 +124,7 @@ td.linenos { background-color: #f0f0f0; padding-right: 10px; }
 span.lineno { background-color: #f0f0f0; padding: 0 5px 0 5px; }
 body .hll { background-color: #ffffcc }
 body .c { color: #408080; font-style: italic }  /* Comment */
-/*body .err { border: 1px solid #FF0000 }         /* Error */
+body .err { border: 1px solid #FF0000 }         /* Error */
 body .k { color: #954121 }                      /* Keyword */
 body .o { color: #666666 }                      /* Operator */
 body .cm { color: #408080; font-style: italic } /* Comment.Multiline */

documentation/docs/grammar.html

@@ -1,4 +1,4 @@
-<!DOCTYPE html>  <html> <head>   <title>grammar.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               grammar.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The CoffeeScript parser is generated by <a href="http://github.com/zaach/jison">Jison</a>
+<!DOCTYPE html>  <html> <head>   <title>grammar.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               grammar.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The CoffeeScript parser is generated by <a href="http://github.com/zaach/jison">Jison</a>
 from this grammar file. Jison is a bottom-up parser generator, similar in
 style to <a href="http://www.gnu.org/software/bison">Bison</a>, implemented in JavaScript.
 It can recognize <a href="http://en.wikipedia.org/wiki/LR_grammar">LALR(1), LR(0), SLR(1), and LR(1)</a>
@@ -18,10 +18,10 @@ wrapper and just returning the value directly.</p>             </td>
 <a href="http://github.com/creationix">Tim Caswell</a>. For every rule in the grammar,
 we pass the pattern-defining string, the action to run, and extra options,
 optionally. If no action is specified, we simply pass the value of the
-previous nonterminal.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">o: </span><span class="p">(</span><span class="nx">pattern_string</span><span class="p">,</span> <span class="nx">action</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="k">return</span> <span class="p">[</span><span class="nx">pattern_string</span><span class="p">,</span> <span class="s1">&#39;$$ = $1;&#39;</span><span class="p">,</span> <span class="nx">options</span><span class="p">]</span> <span class="nx">unless</span> <span class="nx">action</span>
+previous nonterminal.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">o: </span><span class="p">(</span><span class="nx">patternString</span><span class="p">,</span> <span class="nx">action</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="k">return</span> <span class="p">[</span><span class="nx">patternString</span><span class="p">,</span> <span class="s1">&#39;$$ = $1;&#39;</span><span class="p">,</span> <span class="nx">options</span><span class="p">]</span> <span class="nx">unless</span> <span class="nx">action</span>
   <span class="nv">action: </span><span class="k">if</span> <span class="nv">match: </span><span class="p">(</span><span class="nx">action</span> <span class="o">+</span> <span class="s1">&#39;&#39;</span><span class="p">).</span><span class="nx">match</span><span class="p">(</span><span class="nx">unwrap</span><span class="p">)</span> <span class="k">then</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="k">else</span> <span class="s2">&quot;($action())&quot;</span>
-  <span class="p">[</span><span class="nx">pattern_string</span><span class="p">,</span> <span class="s2">&quot;$$ = $action;&quot;</span><span class="p">,</span> <span class="nx">options</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <h2>Grammatical Rules</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>In all of the rules that follow, you'll see the name of the nonterminal as
+  <span class="p">[</span><span class="nx">patternString</span><span class="p">,</span> <span class="s2">&quot;$$ = $action;&quot;</span><span class="p">,</span> <span class="nx">options</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <h2>Grammatical Rules</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>In all of the rules that follow, you'll see the name of the nonterminal as
 the key to a list of alternative matches. With each match's action, the
 dollar-sign variables are provided by Jison as references to the value of
 their numeric position, so in this rule:</p>
@@ -33,29 +33,33 @@ their numeric position, so in this rule:</p>
 for the <code>UNLESS</code> terminal, and <code>$3</code> would be the value of the second
 <code>Expression</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">grammar: </span><span class="p">{</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>The <strong>Root</strong> is the top-level node in the syntax tree. Since we parse bottom-up,
 all parsing must end here.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Root: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">Expressions</span><span class="p">()</span>
-    <span class="nx">o</span> <span class="s2">&quot;TERMINATOR&quot;</span><span class="p">,</span>                        <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">Expressions</span><span class="p">()</span>
-    <span class="nx">o</span> <span class="s2">&quot;Expressions&quot;</span>
+    <span class="nx">o</span> <span class="s2">&quot;&quot;</span><span class="p">,</span>                                       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">Expressions</span>
+    <span class="nx">o</span> <span class="s2">&quot;TERMINATOR&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">Expressions</span>
+    <span class="nx">o</span> <span class="s2">&quot;Body&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Block TERMINATOR&quot;</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Any list of expressions or method body, seperated by line breaks or
-semicolons.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Expressions: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;Expression&quot;</span><span class="p">,</span>                        <span class="o">-&gt;</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
-    <span class="nx">o</span> <span class="s2">&quot;Expressions TERMINATOR Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">push</span> <span class="nx">$3</span>
-    <span class="nx">o</span> <span class="s2">&quot;Expressions TERMINATOR&quot;</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>All the different types of expressions in our language. The basic unit of
-CoffeeScript is the <strong>Expression</strong> -- you'll notice that there is no
-"statement" nonterminal. Expressions serve as the building blocks
-of many other rules, making them somewhat circular.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Expression: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Any list of statements and expressions, seperated by line breaks or semicolons.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Body: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;Line&quot;</span><span class="p">,</span>                                   <span class="o">-&gt;</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
+    <span class="nx">o</span> <span class="s2">&quot;Body TERMINATOR Line&quot;</span><span class="p">,</span>                   <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">push</span> <span class="nx">$3</span>
+    <span class="nx">o</span> <span class="s2">&quot;Body TERMINATOR&quot;</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Expressions and statements, which make up a line in a body.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Line: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;Expression&quot;</span>
+    <span class="nx">o</span> <span class="s2">&quot;Statement&quot;</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Pure statements which cannot be expressions.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Statement: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;Return&quot;</span>
+    <span class="nx">o</span> <span class="s2">&quot;Throw&quot;</span>
+    <span class="nx">o</span> <span class="s2">&quot;BREAK&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
+    <span class="nx">o</span> <span class="s2">&quot;CONTINUE&quot;</span><span class="p">,</span>                               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>All the different types of expressions in our language. The basic unit of
+CoffeeScript is the <strong>Expression</strong> -- everything that can be an expression
+is one. Expressions serve as the building blocks of many other rules, making
+them somewhat circular.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Expression: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;Value&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Call&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;Curry&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Code&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Operation&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Assign&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;If&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Try&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;Throw&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;Return&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;While&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;For&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Switch&quot;</span>
@@ -64,79 +68,85 @@ of many other rules, making them somewhat circular.</p>             </td>
     <span class="nx">o</span> <span class="s2">&quot;Splat&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Existence&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Comment&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;Extension&quot;</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>A an indented block of expressions. Note that the <a href="rewriter.html">Rewriter</a>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-13">#</a>               </div>               <p>A an indented block of expressions. Note that the <a href="rewriter.html">Rewriter</a>
 will convert some postfix forms into blocks for us, by adjusting the
 token stream.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Block: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;INDENT Expressions OUTDENT&quot;</span><span class="p">,</span>             <span class="o">-&gt;</span> <span class="nx">$2</span>
-    <span class="nx">o</span> <span class="s2">&quot;INDENT OUTDENT&quot;</span><span class="p">,</span>                         <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">Expressions</span><span class="p">()</span>
+    <span class="nx">o</span> <span class="s2">&quot;INDENT Body OUTDENT&quot;</span><span class="p">,</span>                    <span class="o">-&gt;</span> <span class="nx">$2</span>
+    <span class="nx">o</span> <span class="s2">&quot;INDENT OUTDENT&quot;</span><span class="p">,</span>                         <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">Expressions</span>
     <span class="nx">o</span> <span class="s2">&quot;TERMINATOR Comment&quot;</span><span class="p">,</span>                     <span class="o">-&gt;</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$2</span><span class="p">]</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>A literal identifier, a variable name or property.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Identifier: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;IDENTIFIER&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">yytext</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-13">#</a>               </div>               <p>Alphanumerics are separated from the other <strong>Literal</strong> matchers because
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-14">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-14">#</a>               </div>               <p>A literal identifier, a variable name or property.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Identifier: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;IDENTIFIER&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-15">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-15">#</a>               </div>               <p>Alphanumerics are separated from the other <strong>Literal</strong> matchers because
 they can also serve as keys in object literals.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">AlphaNumeric: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;NUMBER&quot;</span><span class="p">,</span>                                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">yytext</span>
-    <span class="nx">o</span> <span class="s2">&quot;STRING&quot;</span><span class="p">,</span>                                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">yytext</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-14">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-14">#</a>               </div>               <p>All of our immediate values. These can (in general), be passed straight
+    <span class="nx">o</span> <span class="s2">&quot;NUMBER&quot;</span><span class="p">,</span>                                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
+    <span class="nx">o</span> <span class="s2">&quot;STRING&quot;</span><span class="p">,</span>                                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-16">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-16">#</a>               </div>               <p>All of our immediate values. These can (in general), be passed straight
 through and printed to JavaScript.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Literal: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;AlphaNumeric&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;JS&quot;</span><span class="p">,</span>                                     <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">yytext</span>
-    <span class="nx">o</span> <span class="s2">&quot;REGEX&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">yytext</span>
-    <span class="nx">o</span> <span class="s2">&quot;BREAK&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">yytext</span>
-    <span class="nx">o</span> <span class="s2">&quot;CONTINUE&quot;</span><span class="p">,</span>                               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">yytext</span>
+    <span class="nx">o</span> <span class="s2">&quot;JS&quot;</span><span class="p">,</span>                                     <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
+    <span class="nx">o</span> <span class="s2">&quot;REGEX&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
     <span class="nx">o</span> <span class="s2">&quot;TRUE&quot;</span><span class="p">,</span>                                   <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">true</span>
     <span class="nx">o</span> <span class="s2">&quot;FALSE&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">false</span>
     <span class="nx">o</span> <span class="s2">&quot;YES&quot;</span><span class="p">,</span>                                    <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">true</span>
     <span class="nx">o</span> <span class="s2">&quot;NO&quot;</span><span class="p">,</span>                                     <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">false</span>
     <span class="nx">o</span> <span class="s2">&quot;ON&quot;</span><span class="p">,</span>                                     <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">true</span>
     <span class="nx">o</span> <span class="s2">&quot;OFF&quot;</span><span class="p">,</span>                                    <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">false</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-15">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-15">#</a>               </div>               <p>Assignment of a variable, property, or index to a value.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Assign: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;Value ASSIGN Expression&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-16">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-16">#</a>               </div>               <p>Assignment when it happens within an object literal. The difference from
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-17">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-17">#</a>               </div>               <p>Assignment of a variable, property, or index to a value.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Assign: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;Assignable ASSIGN Expression&quot;</span><span class="p">,</span>           <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-18">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-18">#</a>               </div>               <p>Assignment when it happens within an object literal. The difference from
 the ordinary <strong>Assign</strong> is that these allow numbers and strings as keys.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">AssignObj: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;Identifier&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
+    <span class="nx">o</span> <span class="s2">&quot;AlphaNumeric&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Identifier ASSIGN Expression&quot;</span><span class="p">,</span>           <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="k">new</span> <span class="nx">ValueNode</span><span class="p">(</span><span class="nx">$1</span><span class="p">),</span> <span class="nx">$3</span><span class="p">,</span> <span class="s1">&#39;object&#39;</span>
     <span class="nx">o</span> <span class="s2">&quot;AlphaNumeric ASSIGN Expression&quot;</span><span class="p">,</span>         <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="k">new</span> <span class="nx">ValueNode</span><span class="p">(</span><span class="nx">$1</span><span class="p">),</span> <span class="nx">$3</span><span class="p">,</span> <span class="s1">&#39;object&#39;</span>
     <span class="nx">o</span> <span class="s2">&quot;Comment&quot;</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-17">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-17">#</a>               </div>               <p>A return statement from a function body.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Return: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-19">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-19">#</a>               </div>               <p>A return statement from a function body.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Return: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;RETURN Expression&quot;</span><span class="p">,</span>                      <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ReturnNode</span> <span class="nx">$2</span>
     <span class="nx">o</span> <span class="s2">&quot;RETURN&quot;</span><span class="p">,</span>                                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ReturnNode</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">&#39;null&#39;</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-18">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-18">#</a>               </div>               <p>A comment. Because CoffeeScript passes comments through to JavaScript, we
-have to parse comments like any other construct, and identify all of the
-positions in which they can occur in the grammar.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Comment: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;COMMENT&quot;</span><span class="p">,</span>                                <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">CommentNode</span> <span class="nx">yytext</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-19">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-19">#</a>               </div>               <p><a href="http://jashkenas.github.com/coffee-script/#existence">The existential operator</a>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Existence: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-20">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-20">#</a>               </div>               <p>A block comment.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Comment: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;HERECOMMENT&quot;</span><span class="p">,</span>                            <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">CommentNode</span> <span class="nx">$1</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-21">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-21">#</a>               </div>               <p><a href="http://jashkenas.github.com/coffee-script/#existence">The existential operator</a>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Existence: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;Expression ?&quot;</span><span class="p">,</span>                           <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ExistenceNode</span> <span class="nx">$1</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-20">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-20">#</a>               </div>               <p>The <strong>Code</strong> node is the function literal. It's defined by an indented block
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-22">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-22">#</a>               </div>               <p>The <strong>Code</strong> node is the function literal. It's defined by an indented block
 of <strong>Expressions</strong> preceded by a function arrow, with an optional parameter
 list.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Code: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;PARAM_START ParamList PARAM_END FuncGlyph Block&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">CodeNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$5</span><span class="p">,</span> <span class="nx">$4</span>
     <span class="nx">o</span> <span class="s2">&quot;FuncGlyph Block&quot;</span><span class="p">,</span>                        <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">CodeNode</span> <span class="p">[],</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$1</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-21">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-21">#</a>               </div>               <p>CoffeeScript has two different symbols for functions. <code>-&gt;</code> is for ordinary
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-23">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-23">#</a>               </div>               <p>CoffeeScript has two different symbols for functions. <code>-&gt;</code> is for ordinary
 functions, and <code>=&gt;</code> is for functions bound to the current value of <em>this</em>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">FuncGlyph: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;-&gt;&quot;</span><span class="p">,</span>                                     <span class="o">-&gt;</span> <span class="s1">&#39;func&#39;</span>
     <span class="nx">o</span> <span class="s2">&quot;=&gt;&quot;</span><span class="p">,</span>                                     <span class="o">-&gt;</span> <span class="s1">&#39;boundfunc&#39;</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-22">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-22">#</a>               </div>               <p>The list of parameters that a function accepts can be of any length.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ParamList: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-24">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-24">#</a>               </div>               <p>An optional, trailing comma.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">OptComma: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s1">&#39;&#39;</span>
+    <span class="nx">o</span> <span class="s1">&#39;,&#39;</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-25">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-25">#</a>               </div>               <p>The list of parameters that a function accepts can be of any length.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ParamList: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;&quot;</span><span class="p">,</span>                                       <span class="o">-&gt;</span> <span class="p">[]</span>
     <span class="nx">o</span> <span class="s2">&quot;Param&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
     <span class="nx">o</span> <span class="s2">&quot;ParamList , Param&quot;</span><span class="p">,</span>                      <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$3</span><span class="p">]</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-23">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-23">#</a>               </div>               <p>A single parameter in a function definition can be ordinary, or a splat
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-26">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-26">#</a>               </div>               <p>A single parameter in a function definition can be ordinary, or a splat
 that hoovers up the remaining arguments.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Param: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;PARAM&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">yytext</span>
+    <span class="nx">o</span> <span class="s2">&quot;PARAM&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
     <span class="nx">o</span> <span class="s2">&quot;Param . . .&quot;</span><span class="p">,</span>                            <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">SplatNode</span> <span class="nx">$1</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-24">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-24">#</a>               </div>               <p>A splat that occurs outside of a parameter list.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Splat: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-27">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-27">#</a>               </div>               <p>A splat that occurs outside of a parameter list.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Splat: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;Expression . . .&quot;</span><span class="p">,</span>                       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">SplatNode</span> <span class="nx">$1</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-25">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-25">#</a>               </div>               <p>The types of things that can be treated as values -- assigned to, invoked
-as functions, indexed into, named as a class, etc.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Value: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-28">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-28">#</a>               </div>               <p>Variables and properties that can be assigned to.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">SimpleAssignable: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;Identifier&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
-    <span class="nx">o</span> <span class="s2">&quot;Literal&quot;</span><span class="p">,</span>                                <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
+    <span class="nx">o</span> <span class="s2">&quot;Value Accessor&quot;</span><span class="p">,</span>                         <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">push</span> <span class="nx">$2</span>
+    <span class="nx">o</span> <span class="s2">&quot;Invocation Accessor&quot;</span><span class="p">,</span>                    <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="p">[</span><span class="nx">$2</span><span class="p">]</span>
+    <span class="nx">o</span> <span class="s2">&quot;ThisProperty&quot;</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-29">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-29">#</a>               </div>               <p>Everything that can be assigned to.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Assignable: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;SimpleAssignable&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Array&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
     <span class="nx">o</span> <span class="s2">&quot;Object&quot;</span><span class="p">,</span>                                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-30">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-30">#</a>               </div>               <p>The types of things that can be treated as values -- assigned to, invoked
+as functions, indexed into, named as a class, etc.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Value: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;Assignable&quot;</span>
+    <span class="nx">o</span> <span class="s2">&quot;Literal&quot;</span><span class="p">,</span>                                <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
     <span class="nx">o</span> <span class="s2">&quot;Parenthetical&quot;</span><span class="p">,</span>                          <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
     <span class="nx">o</span> <span class="s2">&quot;Range&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
     <span class="nx">o</span> <span class="s2">&quot;This&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;Value Accessor&quot;</span><span class="p">,</span>                         <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">push</span> <span class="nx">$2</span>
-    <span class="nx">o</span> <span class="s2">&quot;Invocation Accessor&quot;</span><span class="p">,</span>                    <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="p">[</span><span class="nx">$2</span><span class="p">]</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-26">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-26">#</a>               </div>               <p>The general group of accessors into an object, by property, by prototype
+    <span class="nx">o</span> <span class="s2">&quot;NULL&quot;</span><span class="p">,</span>                                   <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">&#39;null&#39;</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-31">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-31">#</a>               </div>               <p>The general group of accessors into an object, by property, by prototype
 or by array index or slice.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Accessor: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;PROPERTY_ACCESS Identifier&quot;</span><span class="p">,</span>             <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">AccessorNode</span> <span class="nx">$2</span>
     <span class="nx">o</span> <span class="s2">&quot;PROTOTYPE_ACCESS Identifier&quot;</span><span class="p">,</span>            <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">AccessorNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="s1">&#39;prototype&#39;</span>
@@ -144,142 +154,158 @@ or by array index or slice.</p>             </td>             <td class="code">
     <span class="nx">o</span> <span class="s2">&quot;SOAK_ACCESS Identifier&quot;</span><span class="p">,</span>                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">AccessorNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="s1">&#39;soak&#39;</span>
     <span class="nx">o</span> <span class="s2">&quot;Index&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;Slice&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">SliceNode</span> <span class="nx">$1</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-27">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-27">#</a>               </div>               <p>Indexing into an object or array using bracket notation.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Index: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-32">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-32">#</a>               </div>               <p>Indexing into an object or array using bracket notation.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Index: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;INDEX_START Expression INDEX_END&quot;</span><span class="p">,</span>       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IndexNode</span> <span class="nx">$2</span>
-    <span class="nx">o</span> <span class="s2">&quot;SOAKED_INDEX_START Expression SOAKED_INDEX_END&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IndexNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="s1">&#39;soak&#39;</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-28">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-28">#</a>               </div>               <p>In CoffeeScript, an object literal is simply a list of assignments.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nb">Object</span><span class="o">:</span> <span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;{ AssignList }&quot;</span><span class="p">,</span>                         <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ObjectNode</span> <span class="nx">$2</span>
-    <span class="nx">o</span> <span class="s2">&quot;{ IndentedAssignList }&quot;</span><span class="p">,</span>                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ObjectNode</span> <span class="nx">$2</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-29">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-29">#</a>               </div>               <p>Class definitions have optional bodies of prototype property assignments,
-and optional references to the superclass.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Class: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;CLASS Value&quot;</span><span class="p">,</span>                            <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span>
-    <span class="nx">o</span> <span class="s2">&quot;CLASS Value EXTENDS Value&quot;</span><span class="p">,</span>              <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$4</span>
-    <span class="nx">o</span> <span class="s2">&quot;CLASS Value IndentedAssignList&quot;</span><span class="p">,</span>         <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="nx">$3</span>
-    <span class="nx">o</span> <span class="s2">&quot;CLASS Value EXTENDS Value IndentedAssignList&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">$5</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-30">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-30">#</a>               </div>               <p>Assignment of properties within an object literal can be separated by
+    <span class="nx">o</span> <span class="s2">&quot;INDEX_SOAK Index&quot;</span><span class="p">,</span>                       <span class="o">-&gt;</span> <span class="nv">$2.soakNode: </span><span class="kc">yes</span><span class="p">;</span> <span class="nx">$2</span>
+    <span class="nx">o</span> <span class="s2">&quot;INDEX_PROTO Index&quot;</span><span class="p">,</span>                      <span class="o">-&gt;</span> <span class="nv">$2.proto: </span><span class="kc">yes</span><span class="p">;</span> <span class="nx">$2</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-33">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-33">#</a>               </div>               <p>In CoffeeScript, an object literal is simply a list of assignments.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nb">Object</span><span class="o">:</span> <span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;{ AssignList OptComma }&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ObjectNode</span> <span class="nx">$2</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-34">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-34">#</a>               </div>               <p>Assignment of properties within an object literal can be separated by
 comma, as in JavaScript, or simply by newline.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">AssignList: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;&quot;</span><span class="p">,</span>                                       <span class="o">-&gt;</span> <span class="p">[]</span>
     <span class="nx">o</span> <span class="s2">&quot;AssignObj&quot;</span><span class="p">,</span>                              <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
     <span class="nx">o</span> <span class="s2">&quot;AssignList , AssignObj&quot;</span><span class="p">,</span>                 <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$3</span><span class="p">]</span>
-    <span class="nx">o</span> <span class="s2">&quot;AssignList TERMINATOR AssignObj&quot;</span><span class="p">,</span>        <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$3</span><span class="p">]</span>
-    <span class="nx">o</span> <span class="s2">&quot;AssignList , TERMINATOR AssignObj&quot;</span><span class="p">,</span>      <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$4</span><span class="p">]</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-31">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-31">#</a>               </div>               <p>An <strong>AssignList</strong> within a block indentation.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">IndentedAssignList: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;INDENT AssignList OUTDENT&quot;</span><span class="p">,</span>              <span class="o">-&gt;</span> <span class="nx">$2</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-32">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-32">#</a>               </div>               <p>The three flavors of function call: normal, object instantiation with <code>new</code>,
+    <span class="nx">o</span> <span class="s2">&quot;AssignList OptComma TERMINATOR AssignObj&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$4</span><span class="p">]</span>
+    <span class="nx">o</span> <span class="s2">&quot;AssignList OptComma INDENT AssignList OptComma OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">$4</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-35">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-35">#</a>               </div>               <p>Class definitions have optional bodies of prototype property assignments,
+and optional references to the superclass.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Class: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;CLASS SimpleAssignable&quot;</span><span class="p">,</span>                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span>
+    <span class="nx">o</span> <span class="s2">&quot;CLASS SimpleAssignable EXTENDS Value&quot;</span><span class="p">,</span>   <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$4</span>
+    <span class="nx">o</span> <span class="s2">&quot;CLASS SimpleAssignable INDENT ClassBody OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="nx">$4</span>
+    <span class="nx">o</span> <span class="s2">&quot;CLASS SimpleAssignable EXTENDS Value INDENT ClassBody OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">$6</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-36">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-36">#</a>               </div>               <p>Assignments that can happen directly inside a class declaration.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ClassAssign: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;AssignObj&quot;</span><span class="p">,</span>                              <span class="o">-&gt;</span> <span class="nx">$1</span>
+    <span class="nx">o</span> <span class="s2">&quot;ThisProperty ASSIGN Expression&quot;</span><span class="p">,</span>         <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="k">new</span> <span class="nx">ValueNode</span><span class="p">(</span><span class="nx">$1</span><span class="p">),</span> <span class="nx">$3</span><span class="p">,</span> <span class="s1">&#39;this&#39;</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-37">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-37">#</a>               </div>               <p>A list of assignments to a class.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ClassBody: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;&quot;</span><span class="p">,</span>                                       <span class="o">-&gt;</span> <span class="p">[]</span>
+    <span class="nx">o</span> <span class="s2">&quot;ClassAssign&quot;</span><span class="p">,</span>                            <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
+    <span class="nx">o</span> <span class="s2">&quot;ClassBody TERMINATOR ClassAssign&quot;</span><span class="p">,</span>       <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">$3</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-38">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-38">#</a>               </div>               <p>The three flavors of function call: normal, object instantiation with <code>new</code>,
 and calling <code>super()</code></p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Call: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;Invocation&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;NEW Invocation&quot;</span><span class="p">,</span>                         <span class="o">-&gt;</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">new_instance</span><span class="p">()</span>
     <span class="nx">o</span> <span class="s2">&quot;Super&quot;</span>
-  <span class="p">]</span>
-
-  <span class="nv">Curry: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;Value &lt;- Arguments&quot;</span><span class="p">,</span>                     <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">CurryNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-33">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-33">#</a>               </div>               <p>Extending an object by setting its prototype chain to reference a parent
+    <span class="nx">o</span> <span class="s2">&quot;NEW Invocation&quot;</span><span class="p">,</span>                         <span class="o">-&gt;</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">newInstance</span><span class="p">()</span>
+    <span class="nx">o</span> <span class="s2">&quot;NEW Value&quot;</span><span class="p">,</span>                              <span class="o">-&gt;</span> <span class="p">(</span><span class="k">new</span> <span class="nx">CallNode</span><span class="p">(</span><span class="nx">$2</span><span class="p">,</span> <span class="p">[])).</span><span class="nx">newInstance</span><span class="p">()</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-39">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-39">#</a>               </div>               <p>Extending an object by setting its prototype chain to reference a parent
 object.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Extends: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;Value EXTENDS Value&quot;</span><span class="p">,</span>                    <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ExtendsNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-34">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-34">#</a>               </div>               <p>Ordinary function invocation, or a chained series of calls.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Invocation: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;SimpleAssignable EXTENDS Value&quot;</span><span class="p">,</span>         <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ExtendsNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-40">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-40">#</a>               </div>               <p>Ordinary function invocation, or a chained series of calls.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Invocation: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;Value Arguments&quot;</span><span class="p">,</span>                        <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$2</span>
     <span class="nx">o</span> <span class="s2">&quot;Invocation Arguments&quot;</span><span class="p">,</span>                   <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$2</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-35">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-35">#</a>               </div>               <p>The list of arguments to a function call.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Arguments: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;CALL_START ArgList CALL_END&quot;</span><span class="p">,</span>            <span class="o">-&gt;</span> <span class="nx">$2</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-36">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-36">#</a>               </div>               <p>Calling super.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Super: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;SUPER CALL_START ArgList CALL_END&quot;</span><span class="p">,</span>      <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="s1">&#39;super&#39;</span><span class="p">,</span> <span class="nx">$3</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-37">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-37">#</a>               </div>               <p>A reference to the <em>this</em> current object, either naked or to a property.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">This: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-41">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-41">#</a>               </div>               <p>The list of arguments to a function call.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Arguments: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;CALL_START ArgList OptComma CALL_END&quot;</span><span class="p">,</span>   <span class="o">-&gt;</span> <span class="nx">$2</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-42">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-42">#</a>               </div>               <p>Calling super.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Super: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;SUPER Arguments&quot;</span><span class="p">,</span>                        <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="s1">&#39;super&#39;</span><span class="p">,</span> <span class="nx">$2</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-43">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-43">#</a>               </div>               <p>A reference to the <em>this</em> current object.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">This: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;THIS&quot;</span><span class="p">,</span>                                   <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">&#39;this&#39;</span>
     <span class="nx">o</span> <span class="s2">&quot;@&quot;</span><span class="p">,</span>                                      <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">&#39;this&#39;</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-44">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-44">#</a>               </div>               <p>A reference to a property on <em>this</em>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ThisProperty: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;@ Identifier&quot;</span><span class="p">,</span>                           <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span><span class="p">(</span><span class="s1">&#39;this&#39;</span><span class="p">),</span> <span class="p">[</span><span class="k">new</span> <span class="nx">AccessorNode</span><span class="p">(</span><span class="nx">$2</span><span class="p">)]</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-38">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-38">#</a>               </div>               <p>The CoffeeScript range literal.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Range: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-45">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-45">#</a>               </div>               <p>The CoffeeScript range literal.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Range: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;[ Expression . . Expression ]&quot;</span><span class="p">,</span>          <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$5</span>
     <span class="nx">o</span> <span class="s2">&quot;[ Expression . . . Expression ]&quot;</span><span class="p">,</span>        <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$6</span><span class="p">,</span> <span class="kc">true</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-39">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-39">#</a>               </div>               <p>The slice literal.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Slice: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-46">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-46">#</a>               </div>               <p>The slice literal.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Slice: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;INDEX_START Expression . . Expression INDEX_END&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$5</span>
     <span class="nx">o</span> <span class="s2">&quot;INDEX_START Expression . . . Expression INDEX_END&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">RangeNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$6</span><span class="p">,</span> <span class="kc">true</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-40">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-40">#</a>               </div>               <p>The array literal.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nb">Array</span><span class="o">:</span> <span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;[ ArgList ]&quot;</span><span class="p">,</span>                            <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ArrayNode</span> <span class="nx">$2</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-41">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-41">#</a>               </div>               <p>The <strong>ArgList</strong> is both the list of objects passed into a function call,
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-47">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-47">#</a>               </div>               <p>The array literal.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nb">Array</span><span class="o">:</span> <span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;[ ArgList OptComma ]&quot;</span><span class="p">,</span>                   <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ArrayNode</span> <span class="nx">$2</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-48">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-48">#</a>               </div>               <p>The <strong>ArgList</strong> is both the list of objects passed into a function call,
 as well as the contents of an array literal
 (i.e. comma-separated expressions). Newlines work as well.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ArgList: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;&quot;</span><span class="p">,</span>                                       <span class="o">-&gt;</span> <span class="p">[]</span>
     <span class="nx">o</span> <span class="s2">&quot;Expression&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
-    <span class="nx">o</span> <span class="s2">&quot;INDENT Expression&quot;</span><span class="p">,</span>                      <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$2</span><span class="p">]</span>
     <span class="nx">o</span> <span class="s2">&quot;ArgList , Expression&quot;</span><span class="p">,</span>                   <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$3</span><span class="p">]</span>
-    <span class="nx">o</span> <span class="s2">&quot;ArgList TERMINATOR Expression&quot;</span><span class="p">,</span>          <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$3</span><span class="p">]</span>
-    <span class="nx">o</span> <span class="s2">&quot;ArgList , TERMINATOR Expression&quot;</span><span class="p">,</span>        <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$4</span><span class="p">]</span>
-    <span class="nx">o</span> <span class="s2">&quot;ArgList , INDENT Expression&quot;</span><span class="p">,</span>            <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$4</span><span class="p">]</span>
-    <span class="nx">o</span> <span class="s2">&quot;ArgList OUTDENT&quot;</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-42">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-42">#</a>               </div>               <p>Just simple, comma-separated, required arguments (no fancy syntax). We need
+    <span class="nx">o</span> <span class="s2">&quot;ArgList OptComma TERMINATOR Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span><span class="nx">$4</span><span class="p">]</span>
+    <span class="nx">o</span> <span class="s2">&quot;ArgList OptComma INDENT ArgList OptComma OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">$4</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-49">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-49">#</a>               </div>               <p>Just simple, comma-separated, required arguments (no fancy syntax). We need
 this to be separate from the <strong>ArgList</strong> for use in <strong>Switch</strong> blocks, where
 having the newlines wouldn't make sense.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">SimpleArgs: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;Expression&quot;</span>
     <span class="nx">o</span> <span class="s2">&quot;SimpleArgs , Expression&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span>
       <span class="k">if</span> <span class="nx">$1</span> <span class="k">instanceof</span> <span class="nb">Array</span> <span class="k">then</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span><span class="p">([</span><span class="nx">$3</span><span class="p">])</span> <span class="k">else</span> <span class="p">[</span><span class="nx">$1</span><span class="p">].</span><span class="nx">concat</span><span class="p">([</span><span class="nx">$3</span><span class="p">])</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-43">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-43">#</a>               </div>               <p>The variants of <em>try/catch/finally</em> exception handling blocks.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Try: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-50">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-50">#</a>               </div>               <p>The variants of <em>try/catch/finally</em> exception handling blocks.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Try: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;TRY Block Catch&quot;</span><span class="p">,</span>                        <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">TryNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
     <span class="nx">o</span> <span class="s2">&quot;TRY Block FINALLY Block&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">TryNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="nx">$4</span>
     <span class="nx">o</span> <span class="s2">&quot;TRY Block Catch FINALLY Block&quot;</span><span class="p">,</span>          <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">TryNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="nx">$5</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-44">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-44">#</a>               </div>               <p>A catch clause names its error and runs a block of code.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Catch: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-51">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-51">#</a>               </div>               <p>A catch clause names its error and runs a block of code.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Catch: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;CATCH Identifier Block&quot;</span><span class="p">,</span>                 <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">]</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-45">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-45">#</a>               </div>               <p>Throw an exception object.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Throw: </span><span class="p">[</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-52">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-52">#</a>               </div>               <p>Throw an exception object.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Throw: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;THROW Expression&quot;</span><span class="p">,</span>                       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ThrowNode</span> <span class="nx">$2</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-46">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-46">#</a>               </div>               <p>Parenthetical expressions. Note that the <strong>Parenthetical</strong> is a <strong>Value</strong>,
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-53">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-53">#</a>               </div>               <p>Parenthetical expressions. Note that the <strong>Parenthetical</strong> is a <strong>Value</strong>,
 not an <strong>Expression</strong>, so if you need to use an expression in a place
 where only values are accepted, wrapping it in parentheses will always do
 the trick.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Parenthetical: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;( Expression )&quot;</span><span class="p">,</span>                         <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="nx">$2</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-47">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-47">#</a>               </div>               <p>A language extension to CoffeeScript from the outside. We simply pass
-it through unaltered.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Extension: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;EXTENSION&quot;</span><span class="p">,</span>                              <span class="o">-&gt;</span> <span class="nx">yytext</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-48">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-48">#</a>               </div>               <p>The condition portion of a while loop.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">WhileSource: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;( Line )&quot;</span><span class="p">,</span>                               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="nx">$2</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-54">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-54">#</a>               </div>               <p>The condition portion of a while loop.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">WhileSource: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;WHILE Expression&quot;</span><span class="p">,</span>                       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span>
-    <span class="nx">o</span> <span class="s2">&quot;WHILE Expression WHEN Expression&quot;</span><span class="p">,</span>       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="p">{</span><span class="nx">filter</span> <span class="o">:</span> <span class="nx">$4</span><span class="p">}</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-49">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-49">#</a>               </div>               <p>The while loop can either be normal, with a block of expressions to execute,
+    <span class="nx">o</span> <span class="s2">&quot;WHILE Expression WHEN Expression&quot;</span><span class="p">,</span>       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="p">{</span><span class="nv">guard : </span><span class="nx">$4</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;UNTIL Expression&quot;</span><span class="p">,</span>                       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="p">{</span><span class="nv">invert: </span><span class="kc">true</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;UNTIL Expression WHEN Expression&quot;</span><span class="p">,</span>       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="p">{</span><span class="nv">invert: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">guard: </span><span class="nx">$4</span><span class="p">}</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-55">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-55">#</a>               </div>               <p>The while loop can either be normal, with a block of expressions to execute,
 or postfix, with a single expression. There is no do..while.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">While: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;WhileSource Block&quot;</span><span class="p">,</span>                      <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">add_body</span> <span class="nx">$2</span>
-    <span class="nx">o</span> <span class="s2">&quot;Expression WhileSource&quot;</span><span class="p">,</span>                 <span class="o">-&gt;</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">add_body</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-50">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-50">#</a>               </div>               <p>Array, object, and range comprehensions, at the most generic level.
+    <span class="nx">o</span> <span class="s2">&quot;WhileSource Block&quot;</span><span class="p">,</span>                      <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addBody</span> <span class="nx">$2</span>
+    <span class="nx">o</span> <span class="s2">&quot;Statement WhileSource&quot;</span><span class="p">,</span>                  <span class="o">-&gt;</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">addBody</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
+    <span class="nx">o</span> <span class="s2">&quot;Expression WhileSource&quot;</span><span class="p">,</span>                 <span class="o">-&gt;</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">addBody</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
+    <span class="nx">o</span> <span class="s2">&quot;Loop&quot;</span><span class="p">,</span>                                   <span class="o">-&gt;</span> <span class="nx">$1</span>
+  <span class="p">]</span>
+
+  <span class="nv">Loop: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;LOOP Block&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">&#39;true&#39;</span><span class="p">).</span><span class="nx">addBody</span> <span class="nx">$2</span>
+    <span class="nx">o</span> <span class="s2">&quot;LOOP Expression&quot;</span><span class="p">,</span>                        <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">WhileNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">&#39;true&#39;</span><span class="p">).</span><span class="nx">addBody</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$2</span><span class="p">]</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-56">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-56">#</a>               </div>               <p>Array, object, and range comprehensions, at the most generic level.
 Comprehensions can either be normal, with a block of expressions to execute,
 or postfix, with a single expression.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">For: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;Statement FOR ForVariables ForSource&quot;</span><span class="p">,</span>   <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ForNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
     <span class="nx">o</span> <span class="s2">&quot;Expression FOR ForVariables ForSource&quot;</span><span class="p">,</span>  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ForNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">$3</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
     <span class="nx">o</span> <span class="s2">&quot;FOR ForVariables ForSource Block&quot;</span><span class="p">,</span>       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ForNode</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">$2</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">$2</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-51">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-51">#</a>               </div>               <p>An array or range comprehension has variables for the current element and
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-57">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-57">#</a>               </div>               <p>An array of all accepted values for a variable inside the loop. This
+enables support for pattern matching.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ForValue: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;Identifier&quot;</span>
+    <span class="nx">o</span> <span class="s2">&quot;Array&quot;</span><span class="p">,</span>                                  <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
+    <span class="nx">o</span> <span class="s2">&quot;Object&quot;</span><span class="p">,</span>                                 <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-58">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-58">#</a>               </div>               <p>An array or range comprehension has variables for the current element and
 (optional) reference to the current index. Or, <em>key, value</em>, in the case
 of object comprehensions.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ForVariables: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;Identifier&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
-    <span class="nx">o</span> <span class="s2">&quot;Identifier , Identifier&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span><span class="p">]</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-52">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-52">#</a>               </div>               <p>The source of a comprehension is an array or object with an optional filter
-clause. If it's an array comprehension, you can also choose to step throug
+    <span class="nx">o</span> <span class="s2">&quot;ForValue&quot;</span><span class="p">,</span>                               <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
+    <span class="nx">o</span> <span class="s2">&quot;ForValue , ForValue&quot;</span><span class="p">,</span>                    <span class="o">-&gt;</span> <span class="p">[</span><span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span><span class="p">]</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-59">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-59">#</a>               </div>               <p>The source of a comprehension is an array or object with an optional guard
+clause. If it's an array comprehension, you can also choose to step through
 in fixed-size increments.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ForSource: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;IN Expression&quot;</span><span class="p">,</span>                          <span class="o">-&gt;</span> <span class="p">{</span><span class="nv">source: </span>  <span class="nx">$2</span><span class="p">}</span>
-    <span class="nx">o</span> <span class="s2">&quot;OF Expression&quot;</span><span class="p">,</span>                          <span class="o">-&gt;</span> <span class="p">{</span><span class="nv">source: </span>  <span class="nx">$2</span><span class="p">,</span> <span class="nv">object: </span><span class="kc">true</span><span class="p">}</span>
-    <span class="nx">o</span> <span class="s2">&quot;ForSource WHEN Expression&quot;</span><span class="p">,</span>              <span class="o">-&gt;</span> <span class="nv">$1.filter: </span><span class="nx">$3</span><span class="p">;</span> <span class="nx">$1</span>
-    <span class="nx">o</span> <span class="s2">&quot;ForSource BY Expression&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span> <span class="nv">$1.step: </span>  <span class="nx">$3</span><span class="p">;</span> <span class="nx">$1</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-53">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-53">#</a>               </div>               <p>The CoffeeScript switch/when/else block replaces the JavaScript
+    <span class="nx">o</span> <span class="s2">&quot;IN Expression&quot;</span><span class="p">,</span>                               <span class="o">-&gt;</span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;OF Expression&quot;</span><span class="p">,</span>                               <span class="o">-&gt;</span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">,</span> <span class="nv">object: </span><span class="kc">true</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;IN Expression WHEN Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">,</span> <span class="nv">guard: </span><span class="nx">$4</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;OF Expression WHEN Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">,</span> <span class="nv">guard: </span><span class="nx">$4</span><span class="p">,</span> <span class="nv">object: </span><span class="kc">true</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;IN Expression BY Expression&quot;</span><span class="p">,</span>                 <span class="o">-&gt;</span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">,</span> <span class="nv">step: </span>  <span class="nx">$4</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;IN Expression WHEN Expression BY Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">,</span> <span class="nv">guard: </span><span class="nx">$4</span><span class="p">,</span> <span class="nv">step: </span>  <span class="nx">$6</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;IN Expression BY Expression WHEN Expression&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="p">{</span><span class="nv">source: </span><span class="nx">$2</span><span class="p">,</span> <span class="nv">step: </span>  <span class="nx">$4</span><span class="p">,</span> <span class="nv">guard: </span><span class="nx">$6</span><span class="p">}</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-60">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-60">#</a>               </div>               <p>The CoffeeScript switch/when/else block replaces the JavaScript
 switch/case/default by compiling into an if-else chain.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Switch: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;SWITCH Expression INDENT Whens OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$4</span><span class="p">.</span><span class="nx">rewrite_condition</span> <span class="nx">$2</span>
-    <span class="nx">o</span> <span class="s2">&quot;SWITCH Expression INDENT Whens ELSE Block OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$4</span><span class="p">.</span><span class="nx">rewrite_condition</span><span class="p">(</span><span class="nx">$2</span><span class="p">).</span><span class="nx">add_else</span> <span class="nx">$6</span><span class="p">,</span> <span class="kc">true</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-54">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-54">#</a>               </div>               <p>The inner list of whens is left recursive. At code-generation time, the
+    <span class="nx">o</span> <span class="s2">&quot;SWITCH Expression INDENT Whens OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$4</span><span class="p">.</span><span class="nx">switchesOver</span> <span class="nx">$2</span>
+    <span class="nx">o</span> <span class="s2">&quot;SWITCH Expression INDENT Whens ELSE Block OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$4</span><span class="p">.</span><span class="nx">switchesOver</span><span class="p">(</span><span class="nx">$2</span><span class="p">).</span><span class="nx">addElse</span> <span class="nx">$6</span><span class="p">,</span> <span class="kc">true</span>
+    <span class="nx">o</span> <span class="s2">&quot;SWITCH INDENT Whens OUTDENT&quot;</span><span class="p">,</span>            <span class="o">-&gt;</span> <span class="nx">$3</span>
+    <span class="nx">o</span> <span class="s2">&quot;SWITCH INDENT Whens ELSE Block OUTDENT&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="nx">$3</span><span class="p">.</span><span class="nx">addElse</span> <span class="nx">$5</span><span class="p">,</span> <span class="kc">true</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-61">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-61">#</a>               </div>               <p>The inner list of whens is left recursive. At code-generation time, the
 IfNode will rewrite them into a proper chain.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Whens: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;When&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;Whens When&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">push</span> <span class="nx">$2</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-55">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-55">#</a>               </div>               <p>An individual <strong>When</strong> clause, with action.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">When: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;LEADING_WHEN SimpleArgs Block&quot;</span><span class="p">,</span>          <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
-    <span class="nx">o</span> <span class="s2">&quot;LEADING_WHEN SimpleArgs Block TERMINATOR&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
-    <span class="nx">o</span> <span class="s2">&quot;Comment TERMINATOR When&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span> <span class="nv">$3.comment: </span><span class="nx">$1</span><span class="p">;</span> <span class="nx">$3</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-56">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-56">#</a>               </div>               <p>The most basic form of <em>if</em> is a condition and an action. The following
+    <span class="nx">o</span> <span class="s2">&quot;Whens When&quot;</span><span class="p">,</span>                             <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addElse</span> <span class="nx">$2</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-62">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-62">#</a>               </div>               <p>An individual <strong>When</strong> clause, with action.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">When: </span><span class="p">[</span>
+    <span class="nx">o</span> <span class="s2">&quot;LEADING_WHEN SimpleArgs Block&quot;</span><span class="p">,</span>            <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;LEADING_WHEN SimpleArgs Block TERMINATOR&quot;</span><span class="p">,</span> <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-63">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-63">#</a>               </div>               <p>The most basic form of <em>if</em> is a condition and an action. The following
 if-related rules are broken up along these lines in order to avoid
-ambiguity.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">IfStart: </span><span class="p">[</span>
+ambiguity.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">IfBlock: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;IF Expression Block&quot;</span><span class="p">,</span>                    <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span>
-    <span class="nx">o</span> <span class="s2">&quot;IfStart ElsIf&quot;</span><span class="p">,</span>                          <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">add_else</span> <span class="nx">$2</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-57">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-57">#</a>               </div>               <p>An <strong>IfStart</strong> can optionally be followed by an else block.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">IfBlock: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;IfStart&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;IfStart ELSE Block&quot;</span><span class="p">,</span>                     <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">add_else</span> <span class="nx">$3</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-58">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-58">#</a>               </div>               <p>An <em>else if</em> continuation of the <em>if</em> expression.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ElsIf: </span><span class="p">[</span>
-    <span class="nx">o</span> <span class="s2">&quot;ELSE IF Expression Block&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="p">(</span><span class="k">new</span> <span class="nx">IfNode</span><span class="p">(</span><span class="nx">$3</span><span class="p">,</span> <span class="nx">$4</span><span class="p">)).</span><span class="nx">force_statement</span><span class="p">()</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-59">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-59">#</a>               </div>               <p>The full complement of <em>if</em> expressions, including postfix one-liner
+    <span class="nx">o</span> <span class="s2">&quot;UNLESS Expression Block&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$3</span><span class="p">,</span> <span class="p">{</span><span class="nv">invert: </span><span class="kc">true</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;IfBlock ELSE IF Expression Block&quot;</span><span class="p">,</span>       <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addElse</span> <span class="p">(</span><span class="k">new</span> <span class="nx">IfNode</span><span class="p">(</span><span class="nx">$4</span><span class="p">,</span> <span class="nx">$5</span><span class="p">)).</span><span class="nx">forceStatement</span><span class="p">()</span>
+    <span class="nx">o</span> <span class="s2">&quot;IfBlock ELSE Block&quot;</span><span class="p">,</span>                     <span class="o">-&gt;</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addElse</span> <span class="nx">$3</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-64">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-64">#</a>               </div>               <p>The full complement of <em>if</em> expressions, including postfix one-liner
 <em>if</em> and <em>unless</em>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">If: </span><span class="p">[</span>
     <span class="nx">o</span> <span class="s2">&quot;IfBlock&quot;</span>
-    <span class="nx">o</span> <span class="s2">&quot;Expression IF Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
-    <span class="nx">o</span> <span class="s2">&quot;Expression UNLESS Expression&quot;</span><span class="p">,</span>           <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="kc">null</span><span class="p">,</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">invert: </span><span class="kc">true</span><span class="p">}</span>
-  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-60">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-60">#</a>               </div>               <p>Arithmetic and logical operators, working on one or more operands.
+    <span class="nx">o</span> <span class="s2">&quot;Statement IF Expression&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;Expression IF Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;Statement UNLESS Expression&quot;</span><span class="p">,</span>            <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">invert: </span><span class="kc">true</span><span class="p">}</span>
+    <span class="nx">o</span> <span class="s2">&quot;Expression UNLESS Expression&quot;</span><span class="p">,</span>           <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">IfNode</span> <span class="nx">$3</span><span class="p">,</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span><span class="p">([</span><span class="nx">$1</span><span class="p">]),</span> <span class="p">{</span><span class="nv">statement: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">invert: </span><span class="kc">true</span><span class="p">}</span>
+  <span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-65">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-65">#</a>               </div>               <p>Arithmetic and logical operators, working on one or more operands.
 Here they are grouped by order of precedence. The actual precedence rules
 are defined at the bottom of the page. It would be shorter if we could
 combine most of these rules into a single generic <em>Operand OpSymbol Operand</em>
@@ -321,7 +347,7 @@ rules are necessary.</p>             </td>             <td class="code">
 
     <span class="nx">o</span> <span class="s2">&quot;Expression &amp;&amp; Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;&amp;&amp;&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
     <span class="nx">o</span> <span class="s2">&quot;Expression || Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;||&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
-    <span class="nx">o</span> <span class="s2">&quot;Expression ? Expression&quot;</span><span class="p">,</span>                <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
+    <span class="nx">o</span> <span class="s2">&quot;Expression OP? Expression&quot;</span><span class="p">,</span>              <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
 
     <span class="nx">o</span> <span class="s2">&quot;Expression -= Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;-=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
     <span class="nx">o</span> <span class="s2">&quot;Expression += Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;+=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
@@ -333,10 +359,13 @@ rules are necessary.</p>             </td>             <td class="code">
     <span class="nx">o</span> <span class="s2">&quot;Expression ?= Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;?=&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
 
     <span class="nx">o</span> <span class="s2">&quot;Expression INSTANCEOF Expression&quot;</span><span class="p">,</span>       <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;instanceof&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
-    <span class="nx">o</span> <span class="s2">&quot;Expression IN Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;in&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
+    <span class="nx">o</span> <span class="s2">&quot;Expression IN Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">InNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
+    <span class="nx">o</span> <span class="s2">&quot;Expression OF Expression&quot;</span><span class="p">,</span>               <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;in&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
+    <span class="nx">o</span> <span class="s2">&quot;Expression ! IN Expression&quot;</span><span class="p">,</span>             <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;!&#39;</span><span class="p">,</span> <span class="k">new</span> <span class="nx">InNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span>
+    <span class="nx">o</span> <span class="s2">&quot;Expression ! OF Expression&quot;</span><span class="p">,</span>             <span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;!&#39;</span><span class="p">,</span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">&#39;in&#39;</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span>
   <span class="p">]</span>
 
-<span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-61">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-61">#</a>               </div>               <h2>Precedence</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-62">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-62">#</a>               </div>               <p>Operators at the top of this list have higher precedence than the ones lower
+<span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-66">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-66">#</a>               </div>               <h2>Precedence</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-67">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-67">#</a>               </div>               <p>Operators at the top of this list have higher precedence than the ones lower
 down. Following these rules is what makes <code>2 + 3 * 4</code> parse as:</p>
 
 <pre><code>2 + (3 * 4)
@@ -355,17 +384,17 @@ down. Following these rules is what makes <code>2 + 3 * 4</code> parse as:</p>
   <span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span>      <span class="s1">&#39;&lt;=&#39;</span><span class="p">,</span> <span class="s1">&#39;&lt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&gt;=&#39;</span><span class="p">]</span>
   <span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span>     <span class="s1">&#39;DELETE&#39;</span><span class="p">,</span> <span class="s1">&#39;INSTANCEOF&#39;</span><span class="p">,</span> <span class="s1">&#39;TYPEOF&#39;</span><span class="p">]</span>
   <span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span>      <span class="s1">&#39;==&#39;</span><span class="p">,</span> <span class="s1">&#39;!=&#39;</span><span class="p">]</span>
-  <span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span>      <span class="s1">&#39;&amp;&amp;&#39;</span><span class="p">,</span> <span class="s1">&#39;||&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span>      <span class="s1">&#39;&amp;&amp;&#39;</span><span class="p">,</span> <span class="s1">&#39;||&#39;</span><span class="p">,</span> <span class="s1">&#39;OP?&#39;</span><span class="p">]</span>
   <span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span>     <span class="s1">&#39;-=&#39;</span><span class="p">,</span> <span class="s1">&#39;+=&#39;</span><span class="p">,</span> <span class="s1">&#39;/=&#39;</span><span class="p">,</span> <span class="s1">&#39;*=&#39;</span><span class="p">,</span> <span class="s1">&#39;%=&#39;</span><span class="p">,</span> <span class="s1">&#39;||=&#39;</span><span class="p">,</span> <span class="s1">&#39;&amp;&amp;=&#39;</span><span class="p">,</span> <span class="s1">&#39;?=&#39;</span><span class="p">]</span>
   <span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span>      <span class="s1">&#39;.&#39;</span><span class="p">]</span>
   <span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span>     <span class="s1">&#39;INDENT&#39;</span><span class="p">]</span>
   <span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span>      <span class="s1">&#39;OUTDENT&#39;</span><span class="p">]</span>
   <span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span>     <span class="s1">&#39;WHEN&#39;</span><span class="p">,</span> <span class="s1">&#39;LEADING_WHEN&#39;</span><span class="p">,</span> <span class="s1">&#39;IN&#39;</span><span class="p">,</span> <span class="s1">&#39;OF&#39;</span><span class="p">,</span> <span class="s1">&#39;BY&#39;</span><span class="p">,</span> <span class="s1">&#39;THROW&#39;</span><span class="p">]</span>
-  <span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span>     <span class="s1">&#39;FOR&#39;</span><span class="p">,</span> <span class="s1">&#39;NEW&#39;</span><span class="p">,</span> <span class="s1">&#39;SUPER&#39;</span><span class="p">,</span> <span class="s1">&#39;CLASS&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span>     <span class="s1">&#39;FOR&#39;</span><span class="p">,</span> <span class="s1">&#39;WHILE&#39;</span><span class="p">,</span> <span class="s1">&#39;UNTIL&#39;</span><span class="p">,</span> <span class="s1">&#39;LOOP&#39;</span><span class="p">,</span> <span class="s1">&#39;NEW&#39;</span><span class="p">,</span> <span class="s1">&#39;SUPER&#39;</span><span class="p">,</span> <span class="s1">&#39;CLASS&#39;</span><span class="p">]</span>
   <span class="p">[</span><span class="s2">&quot;left&quot;</span><span class="p">,</span>      <span class="s1">&#39;EXTENDS&#39;</span><span class="p">]</span>
   <span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span>     <span class="s1">&#39;ASSIGN&#39;</span><span class="p">,</span> <span class="s1">&#39;RETURN&#39;</span><span class="p">]</span>
-  <span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span>     <span class="s1">&#39;-&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;=&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&lt;-&#39;</span><span class="p">,</span> <span class="s1">&#39;UNLESS&#39;</span><span class="p">,</span> <span class="s1">&#39;IF&#39;</span><span class="p">,</span> <span class="s1">&#39;ELSE&#39;</span><span class="p">,</span> <span class="s1">&#39;WHILE&#39;</span><span class="p">]</span>
-<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-63">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-63">#</a>               </div>               <h2>Wrapping Up</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-64">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-64">#</a>               </div>               <p>Finally, now what we have our <strong>grammar</strong> and our <strong>operators</strong>, we can create
+  <span class="p">[</span><span class="s2">&quot;right&quot;</span><span class="p">,</span>     <span class="s1">&#39;-&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;=&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;UNLESS&#39;</span><span class="p">,</span> <span class="s1">&#39;IF&#39;</span><span class="p">,</span> <span class="s1">&#39;ELSE&#39;</span><span class="p">]</span>
+<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-68">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-68">#</a>               </div>               <h2>Wrapping Up</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-69">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-69">#</a>               </div>               <p>Finally, now what we have our <strong>grammar</strong> and our <strong>operators</strong>, we can create
 our <strong>Jison.Parser</strong>. We do this by processing all of our rules, recording all
 terminals (every symbol which does not appear as the name of a rule above)
 as "tokens".</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">tokens: </span><span class="p">[]</span>
@@ -374,7 +403,7 @@ as "tokens".</p>             </td>             <td class="code">               <
     <span class="k">for</span> <span class="nx">token</span> <span class="k">in</span> <span class="nx">alt</span><span class="p">[</span><span class="mi">0</span><span class="p">].</span><span class="nx">split</span> <span class="s1">&#39; &#39;</span>
       <span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="nx">token</span> <span class="nx">unless</span> <span class="nx">grammar</span><span class="p">[</span><span class="nx">token</span><span class="p">]</span>
     <span class="nx">alt</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="s2">&quot;return ${alt[1]}&quot;</span> <span class="k">if</span> <span class="nx">name</span> <span class="o">is</span> <span class="s1">&#39;Root&#39;</span>
-    <span class="nx">alt</span></pre></div>             </td>           </tr>                               <tr id="section-65">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-65">#</a>               </div>               <p>Initialize the <strong>Parser</strong> with our list of terminal <strong>tokens</strong>, our <strong>grammar</strong>
+    <span class="nx">alt</span></pre></div>             </td>           </tr>                               <tr id="section-70">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-70">#</a>               </div>               <p>Initialize the <strong>Parser</strong> with our list of terminal <strong>tokens</strong>, our <strong>grammar</strong>
 rules, and the name of the root. Reverse the operators because Jison orders
 precedence from low to high, and we have it high to low
 (as in <a href="http://dinosaur.compilertools.net/yacc/index.html">Yacc</a>).</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.parser: </span><span class="k">new</span> <span class="nx">Parser</span> <span class="p">{</span>

documentation/docs/helpers.html

@@ -1,59 +1,36 @@
-<!DOCTYPE html>  <html> <head>   <title>helpers.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               helpers.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>This file contains the common helper functions that we'd like to share among
+<!DOCTYPE html>  <html> <head>   <title>helpers.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               helpers.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>This file contains the common helper functions that we'd like to share among
 the <strong>Lexer</strong>, <strong>Rewriter</strong>, and the <strong>Nodes</strong>. Merge objects, flatten
 arrays, count characters, that sort of thing.</p>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-2">#</a>               </div>               <p>Set up exported variables for both <strong>Node.js</strong> and the browser.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="k">this</span><span class="p">.</span><span class="nv">exports: </span><span class="k">this</span> <span class="nx">unless</span> <span class="nx">process</span><span class="o">?</span>
-<span class="nv">helpers: exports.helpers: </span><span class="p">{}</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Does a list include a value?</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.include: include: </span><span class="p">(</span><span class="nx">list</span><span class="p">,</span> <span class="nx">value</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="nx">list</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="nx">value</span><span class="p">)</span> <span class="o">&gt;=</span> <span class="mi">0</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Peek at the beginning of a given string to see if it matches a sequence.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.starts: starts: </span><span class="p">(</span><span class="nx">string</span><span class="p">,</span> <span class="nx">literal</span><span class="p">,</span> <span class="nx">start</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="nx">string</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">start</span><span class="p">,</span> <span class="p">(</span><span class="nx">start</span> <span class="o">or</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">literal</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="o">is</span> <span class="nx">literal</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Trim out all falsy values from an array.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.compact: compact: </span><span class="p">(</span><span class="nx">array</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">item</span> <span class="k">for</span> <span class="nx">item</span> <span class="k">in</span> <span class="nx">array</span> <span class="k">when</span> <span class="nx">item</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Count the number of occurences of a character in a string.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.count: count: </span><span class="p">(</span><span class="nx">string</span><span class="p">,</span> <span class="nx">letter</span><span class="p">)</span> <span class="o">-&gt;</span>
+<span class="nv">helpers: exports.helpers: </span><span class="p">{}</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Cross-browser indexOf, so that IE can join the party.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.indexOf: indexOf: </span><span class="p">(</span><span class="nx">array</span><span class="p">,</span> <span class="nx">item</span><span class="p">,</span> <span class="nx">from</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="k">return</span> <span class="nx">array</span><span class="p">.</span><span class="nx">indexOf</span> <span class="nx">item</span><span class="p">,</span> <span class="nx">from</span> <span class="k">if</span> <span class="nx">array</span><span class="p">.</span><span class="nx">indexOf</span>
+  <span class="k">for</span> <span class="nx">other</span><span class="p">,</span> <span class="nx">index</span> <span class="k">in</span> <span class="nx">array</span>
+    <span class="k">if</span> <span class="nx">other</span> <span class="o">is</span> <span class="nx">item</span> <span class="o">and</span> <span class="p">(</span><span class="o">not</span> <span class="nx">from</span> <span class="o">or</span> <span class="p">(</span><span class="nx">from</span> <span class="o">&lt;=</span> <span class="nx">index</span><span class="p">))</span>
+      <span class="k">return</span> <span class="nx">index</span>
+  <span class="o">-</span><span class="mi">1</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Does a list include a value?</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.include: include: </span><span class="p">(</span><span class="nx">list</span><span class="p">,</span> <span class="nx">value</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="nx">indexOf</span><span class="p">(</span><span class="nx">list</span><span class="p">,</span> <span class="nx">value</span><span class="p">)</span> <span class="o">&gt;=</span> <span class="mi">0</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Peek at the beginning of a given string to see if it matches a sequence.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.starts: starts: </span><span class="p">(</span><span class="nx">string</span><span class="p">,</span> <span class="nx">literal</span><span class="p">,</span> <span class="nx">start</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="nx">string</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">start</span><span class="p">,</span> <span class="p">(</span><span class="nx">start</span> <span class="o">or</span> <span class="mi">0</span><span class="p">)</span> <span class="o">+</span> <span class="nx">literal</span><span class="p">.</span><span class="nx">length</span><span class="p">)</span> <span class="o">is</span> <span class="nx">literal</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Trim out all falsy values from an array.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.compact: compact: </span><span class="p">(</span><span class="nx">array</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">item</span> <span class="k">for</span> <span class="nx">item</span> <span class="k">in</span> <span class="nx">array</span> <span class="k">when</span> <span class="nx">item</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>Count the number of occurences of a character in a string.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.count: count: </span><span class="p">(</span><span class="nx">string</span><span class="p">,</span> <span class="nx">letter</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">num: </span><span class="mi">0</span>
-  <span class="nv">pos: </span><span class="nx">string</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="nx">letter</span><span class="p">)</span>
+  <span class="nv">pos: </span><span class="nx">indexOf</span> <span class="nx">string</span><span class="p">,</span> <span class="nx">letter</span>
   <span class="k">while</span> <span class="nx">pos</span> <span class="o">isnt</span> <span class="o">-</span><span class="mi">1</span>
     <span class="nv">num: </span><span class="o">+</span> <span class="mi">1</span>
-    <span class="nv">pos: </span><span class="nx">string</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="nx">letter</span><span class="p">,</span> <span class="nx">pos</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span>
-  <span class="nx">num</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>Merge objects, returning a fresh copy with attributes from both sides.
+    <span class="nv">pos: </span><span class="nx">indexOf</span> <span class="nx">string</span><span class="p">,</span> <span class="nx">letter</span><span class="p">,</span> <span class="nx">pos</span> <span class="o">+</span> <span class="mi">1</span>
+  <span class="nx">num</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Merge objects, returning a fresh copy with attributes from both sides.
 Used every time <code>BaseNode#compile</code> is called, to allow properties in the
 options hash to propagate down the tree without polluting other branches.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.merge: merge: </span><span class="p">(</span><span class="nx">options</span><span class="p">,</span> <span class="nx">overrides</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">fresh: </span><span class="p">{}</span>
   <span class="p">(</span><span class="nx">fresh</span><span class="p">[</span><span class="nx">key</span><span class="p">]</span><span class="o">:</span> <span class="nx">val</span><span class="p">)</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="nx">options</span>
   <span class="p">(</span><span class="nx">fresh</span><span class="p">[</span><span class="nx">key</span><span class="p">]</span><span class="o">:</span> <span class="nx">val</span><span class="p">)</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="nx">overrides</span> <span class="k">if</span> <span class="nx">overrides</span>
-  <span class="nx">fresh</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Extend a source object with the properties of another object (shallow copy).
+  <span class="nx">fresh</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Extend a source object with the properties of another object (shallow copy).
 We use this to simulate Node's deprecated <code>process.mixin</code></p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.extend: extend: </span><span class="p">(</span><span class="nx">object</span><span class="p">,</span> <span class="nx">properties</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="p">(</span><span class="nx">object</span><span class="p">[</span><span class="nx">key</span><span class="p">]</span><span class="o">:</span> <span class="nx">val</span><span class="p">)</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="nx">properties</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Return a completely flattened version of an array. Handy for getting a
+  <span class="p">(</span><span class="nx">object</span><span class="p">[</span><span class="nx">key</span><span class="p">]</span><span class="o">:</span> <span class="nx">val</span><span class="p">)</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="nx">properties</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Return a completely flattened version of an array. Handy for getting a
 list of <code>children</code> from the nodes.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.flatten: flatten: </span><span class="p">(</span><span class="nx">array</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">memo: </span><span class="p">[]</span>
   <span class="k">for</span> <span class="nx">item</span> <span class="k">in</span> <span class="nx">array</span>
     <span class="k">if</span> <span class="nx">item</span> <span class="k">instanceof</span> <span class="nb">Array</span> <span class="k">then</span> <span class="nv">memo: </span><span class="nx">memo</span><span class="p">.</span><span class="nx">concat</span><span class="p">(</span><span class="nx">item</span><span class="p">)</span> <span class="k">else</span> <span class="nx">memo</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">item</span><span class="p">)</span>
-  <span class="nx">memo</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Delete a key from an object, returning the value. Useful when a node is
+  <span class="nx">memo</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Delete a key from an object, returning the value. Useful when a node is
 looking for a particular method in an options hash.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.del: del: </span><span class="p">(</span><span class="nx">obj</span><span class="p">,</span> <span class="nx">key</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">val: </span><span class="nx">obj</span><span class="p">[</span><span class="nx">key</span><span class="p">]</span>
   <span class="k">delete</span> <span class="nx">obj</span><span class="p">[</span><span class="nx">key</span><span class="p">]</span>
-  <span class="nx">val</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Matches a balanced group such as a single or double-quoted string. Pass in
-a series of delimiters, all of which must be nested correctly within the
-contents of the string. This method allows us to have strings within
-interpolations within strings, ad infinitum.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.balanced_string: balanced_string: </span><span class="p">(</span><span class="nx">str</span><span class="p">,</span> <span class="nx">delimited</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="nv">options: </span><span class="o">or</span> <span class="p">{}</span>
-  <span class="nv">slash: </span><span class="nx">delimited</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;/&#39;</span>
-  <span class="nv">levels: </span><span class="p">[]</span>
-  <span class="nv">i: </span><span class="mi">0</span>
-  <span class="k">while</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">str</span><span class="p">.</span><span class="nx">length</span>
-    <span class="k">if</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span> <span class="o">and</span> <span class="nx">starts</span> <span class="nx">str</span><span class="p">,</span> <span class="s1">&#39;\\&#39;</span><span class="p">,</span> <span class="nx">i</span>
-      <span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span>
-    <span class="k">else</span>
-      <span class="k">for</span> <span class="nx">pair</span> <span class="k">in</span> <span class="nx">delimited</span>
-        <span class="p">[</span><span class="nx">open</span><span class="p">,</span> <span class="nx">close</span><span class="p">]</span><span class="o">:</span> <span class="nx">pair</span>
-        <span class="k">if</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span> <span class="o">and</span> <span class="nx">starts</span><span class="p">(</span><span class="nx">str</span><span class="p">,</span> <span class="nx">close</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">and</span> <span class="nx">levels</span><span class="p">[</span><span class="nx">levels</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span> <span class="o">is</span> <span class="nx">pair</span>
-          <span class="nx">levels</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
-          <span class="nv">i: </span><span class="o">+</span> <span class="nx">close</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
-          <span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span>
-          <span class="k">break</span>
-        <span class="k">else</span> <span class="k">if</span> <span class="nx">starts</span> <span class="nx">str</span><span class="p">,</span> <span class="nx">open</span><span class="p">,</span> <span class="nx">i</span>
-          <span class="nx">levels</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">pair</span><span class="p">)</span>
-          <span class="nv">i: </span><span class="o">+</span> <span class="nx">open</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
-          <span class="k">break</span>
-    <span class="k">break</span> <span class="k">if</span> <span class="o">not</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span> <span class="o">or</span> <span class="nx">slash</span> <span class="o">and</span> <span class="nx">starts</span> <span class="nx">str</span><span class="p">,</span> <span class="s1">&#39;\n&#39;</span><span class="p">,</span> <span class="nx">i</span>
-    <span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span>
-  <span class="k">if</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="k">if</span> <span class="nx">slash</span>
-    <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;SyntaxError: Unterminated ${levels.pop()[0]} starting on line ${@line + 1}&quot;</span>
-  <span class="k">if</span> <span class="o">not</span> <span class="nx">i</span> <span class="k">then</span> <span class="kc">false</span> <span class="k">else</span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span>
+  <span class="nx">val</span>
 
 </pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/index.html

@@ -0,0 +1,3 @@
+<!DOCTYPE html>  <html> <head>   <title>index.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               index.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>Loader for CoffeeScript as a Node.js library.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="p">(</span><span class="nx">exports</span><span class="p">[</span><span class="nx">key</span><span class="p">]</span><span class="o">:</span> <span class="nx">val</span><span class="p">)</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="nx">require</span> <span class="s1">&#39;./coffee-script&#39;</span>
+
+</pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/lexer.html

@@ -1,22 +1,18 @@
-<!DOCTYPE html>  <html> <head>   <title>lexer.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               lexer.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The CoffeeScript Lexer. Uses a series of token-matching regexes to attempt
+<!DOCTYPE html>  <html> <head>   <title>lexer.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               lexer.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The CoffeeScript Lexer. Uses a series of token-matching regexes to attempt
 matches against the beginning of the source code. When a match is found,
 a token is produced, we consume the match, and start again. Tokens are in the
 form:</p>
 
-<pre><code>[tag, value, line_number]
+<pre><code>[tag, value, lineNumber]
 </code></pre>
 
 <p>Which is a format that can be fed directly into <a href="http://github.com/zaach/jison">Jison</a>.</p>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-2">#</a>               </div>               <p>Set up the Lexer for both Node.js and the browser, depending on where we are.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="k">if</span> <span class="nx">process</span><span class="o">?</span>
-  <span class="nv">Rewriter: </span><span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./rewriter&#39;</span><span class="p">).</span><span class="nx">Rewriter</span>
-  <span class="nv">helpers: </span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./helpers&#39;</span><span class="p">).</span><span class="nx">helpers</span>
+  <span class="p">{</span><span class="nx">Rewriter</span><span class="p">}</span><span class="o">:</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./rewriter&#39;</span><span class="p">)</span>
+  <span class="p">{</span><span class="nx">helpers</span><span class="p">}</span><span class="o">:</span>  <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./helpers&#39;</span><span class="p">)</span>
 <span class="k">else</span>
   <span class="k">this</span><span class="p">.</span><span class="nv">exports: </span><span class="k">this</span>
   <span class="nv">Rewriter: </span>    <span class="k">this</span><span class="p">.</span><span class="nx">Rewriter</span>
-  <span class="nv">helpers: </span>     <span class="k">this</span><span class="p">.</span><span class="nx">helpers</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Import the helpers we need.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">include: </span>         <span class="nx">helpers</span><span class="p">.</span><span class="nx">include</span>
-<span class="nv">count: </span>           <span class="nx">helpers</span><span class="p">.</span><span class="nx">count</span>
-<span class="nv">starts: </span>          <span class="nx">helpers</span><span class="p">.</span><span class="nx">starts</span>
-<span class="nv">compact: </span>         <span class="nx">helpers</span><span class="p">.</span><span class="nx">compact</span>
-<span class="nv">balanced_string: </span> <span class="nx">helpers</span><span class="p">.</span><span class="nx">balanced_string</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <h2>The Lexer Class</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>The Lexer class reads a stream of CoffeeScript and divvys it up into tagged
+  <span class="nv">helpers: </span>     <span class="k">this</span><span class="p">.</span><span class="nx">helpers</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Import the helpers we need.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="p">{</span><span class="nx">include</span><span class="p">,</span> <span class="nx">count</span><span class="p">,</span> <span class="nx">starts</span><span class="p">,</span> <span class="nx">compact</span><span class="p">}</span><span class="o">:</span> <span class="nx">helpers</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <h2>The Lexer Class</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>The Lexer class reads a stream of CoffeeScript and divvys it up into tagged
 tokens. Some potential ambiguity in the grammar has been avoided by
 pushing some extra smarts into the Lexer.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.Lexer: </span><span class="nx">class</span> <span class="nx">Lexer</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p><strong>tokenize</strong> is the Lexer's main method. Scan by attempting to match tokens
 one at a time, using a regular expression anchored at the start of the
@@ -30,110 +26,116 @@ of source.</p>
 
 <p>Before returning the token stream, run it through the <a href="rewriter.html">Rewriter</a>
 unless explicitly asked not to.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">tokenize: </span><span class="p">(</span><span class="nx">code</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nx">code</span>     <span class="o">:</span> <span class="nx">code</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/(\r|\s+$)/g</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
-    <span class="nx">o</span>        <span class="o">:</span> <span class="nx">options</span> <span class="o">or</span> <span class="p">{}</span>
-    <span class="err">@</span><span class="nx">code</span>    <span class="o">:</span> <span class="nx">code</span>         <span class="c1"># The remainder of the source code.</span>
-    <span class="err">@</span><span class="nx">i</span>       <span class="o">:</span> <span class="mi">0</span>            <span class="c1"># Current character position we&#39;re parsing.</span>
-    <span class="err">@</span><span class="nx">line</span>    <span class="o">:</span> <span class="nx">o</span><span class="p">.</span><span class="nx">line</span> <span class="o">or</span> <span class="mi">0</span>  <span class="c1"># The current line.</span>
-    <span class="err">@</span><span class="nx">indent</span>  <span class="o">:</span> <span class="mi">0</span>            <span class="c1"># The current indentation level.</span>
-    <span class="err">@</span><span class="nx">indents</span> <span class="o">:</span> <span class="p">[]</span>           <span class="c1"># The stack of all current indentation levels.</span>
-    <span class="err">@</span><span class="nx">tokens</span>  <span class="o">:</span> <span class="p">[]</span>           <span class="c1"># Stream of parsed tokens in the form [&#39;TYPE&#39;, value, line]</span>
-    <span class="k">while</span> <span class="err">@</span><span class="nx">i</span> <span class="o">&lt;</span> <span class="err">@</span><span class="nx">code</span><span class="p">.</span><span class="nx">length</span>
-      <span class="err">@</span><span class="nv">chunk: </span><span class="err">@</span><span class="nx">code</span><span class="p">.</span><span class="nx">slice</span><span class="p">(</span><span class="err">@</span><span class="nx">i</span><span class="p">)</span>
-      <span class="err">@</span><span class="nx">extract_next_token</span><span class="p">()</span>
-    <span class="err">@</span><span class="nx">close_indentation</span><span class="p">()</span>
-    <span class="k">return</span> <span class="err">@</span><span class="nx">tokens</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">rewrite</span> <span class="o">is</span> <span class="kc">off</span>
-    <span class="p">(</span><span class="k">new</span> <span class="nx">Rewriter</span><span class="p">()).</span><span class="nx">rewrite</span> <span class="err">@</span><span class="nx">tokens</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>At every position, run through this list of attempted matches,
+    <span class="nv">code     : </span><span class="nx">code</span><span class="p">.</span><span class="nx">replace</span> <span class="sr">/(\r|\s+$)/g</span><span class="p">,</span> <span class="s1">&#39;&#39;</span>
+    <span class="nv">o        : </span><span class="nx">options</span> <span class="o">or</span> <span class="p">{}</span>
+    <span class="vi">@code    : </span><span class="nx">code</span>         <span class="c1"># The remainder of the source code.</span>
+    <span class="vi">@i       : </span><span class="mi">0</span>            <span class="c1"># Current character position we&#39;re parsing.</span>
+    <span class="vi">@line    : </span><span class="nx">o</span><span class="p">.</span><span class="nx">line</span> <span class="o">or</span> <span class="mi">0</span>  <span class="c1"># The current line.</span>
+    <span class="vi">@indent  : </span><span class="mi">0</span>            <span class="c1"># The current indentation level.</span>
+    <span class="vi">@outdebt : </span><span class="mi">0</span>            <span class="c1"># The under-outdentation of the last outdent.</span>
+    <span class="vi">@indents : </span><span class="p">[]</span>           <span class="c1"># The stack of all current indentation levels.</span>
+    <span class="vi">@tokens  : </span><span class="p">[]</span>           <span class="c1"># Stream of parsed tokens in the form [&#39;TYPE&#39;, value, line]</span>
+    <span class="k">while</span> <span class="nx">@i</span> <span class="o">&lt;</span> <span class="nx">@code</span><span class="p">.</span><span class="nx">length</span>
+      <span class="vi">@chunk: </span><span class="nx">@code</span><span class="p">.</span><span class="nx">slice</span> <span class="nx">@i</span>
+      <span class="nx">@extractNextToken</span><span class="p">()</span>
+    <span class="nx">@closeIndentation</span><span class="p">()</span>
+    <span class="k">return</span> <span class="nx">@tokens</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">rewrite</span> <span class="o">is</span> <span class="kc">off</span>
+    <span class="p">(</span><span class="k">new</span> <span class="nx">Rewriter</span><span class="p">).</span><span class="nx">rewrite</span> <span class="nx">@tokens</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>At every position, run through this list of attempted matches,
 short-circuiting if any of them succeed. Their order determines precedence:
-<code>@literal_token</code> is the fallback catch-all.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">extract_next_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">extension_token</span><span class="p">()</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">identifier_token</span><span class="p">()</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">number_token</span><span class="p">()</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">heredoc_token</span><span class="p">()</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">regex_token</span><span class="p">()</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">comment_token</span><span class="p">()</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">line_token</span><span class="p">()</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">whitespace_token</span><span class="p">()</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">js_token</span><span class="p">()</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">string_token</span><span class="p">()</span>
-    <span class="k">return</span>    <span class="err">@</span><span class="nx">literal_token</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <h2>Tokenizers</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Language extensions get the highest priority, first chance to tag tokens
-as something else.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">extension_token: </span><span class="o">-&gt;</span>
-    <span class="k">for</span> <span class="nx">extension</span> <span class="k">in</span> <span class="nx">Lexer</span><span class="p">.</span><span class="nx">extensions</span>
-      <span class="k">return</span> <span class="kc">true</span> <span class="k">if</span> <span class="nx">extension</span><span class="p">.</span><span class="nx">call</span> <span class="k">this</span>
-    <span class="kc">false</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Matches identifying literals: variables, keywords, method names, etc.
+<code>@literalToken</code> is the fallback catch-all.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">extractNextToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@identifierToken</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@commentToken</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@whitespaceToken</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@lineToken</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@heredocToken</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@stringToken</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@numberToken</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@regexToken</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@jsToken</span><span class="p">()</span>
+    <span class="k">return</span>    <span class="nx">@literalToken</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <h2>Tokenizers</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Matches identifying literals: variables, keywords, method names, etc.
 Check to ensure that JavaScript reserved words aren't being used as
 identifiers. Because CoffeeScript reserves a handful of keywords that are
 allowed in JavaScript, we're careful not to tag them as keywords when
 referenced as property names here, so you can still do <code>jQuery.is()</code> even
-though <code>is</code> means <code>===</code> otherwise.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">identifier_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">id: </span><span class="err">@</span><span class="nx">match</span> <span class="nx">IDENTIFIER</span><span class="p">,</span> <span class="mi">1</span>
-    <span class="err">@</span><span class="nx">name_access_type</span><span class="p">()</span>
-    <span class="nv">accessed: </span><span class="nx">include</span> <span class="nx">ACCESSORS</span><span class="p">,</span> <span class="err">@</span><span class="nx">tag</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
+though <code>is</code> means <code>===</code> otherwise.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">identifierToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">id: </span><span class="nx">@match</span> <span class="nx">IDENTIFIER</span><span class="p">,</span> <span class="mi">1</span>
+    <span class="vi">@i: </span><span class="o">+</span> <span class="nx">id</span><span class="p">.</span><span class="nx">length</span>
+    <span class="nv">forcedIdentifier: </span><span class="nx">@tagAccessor</span><span class="p">()</span> <span class="o">or</span> <span class="nx">@match</span> <span class="nx">ASSIGNED</span><span class="p">,</span> <span class="mi">1</span>
     <span class="nv">tag: </span><span class="s1">&#39;IDENTIFIER&#39;</span>
-    <span class="nv">tag: </span><span class="nx">id</span><span class="p">.</span><span class="nx">toUpperCase</span><span class="p">()</span>     <span class="k">if</span> <span class="o">not</span> <span class="nx">accessed</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">KEYWORDS</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
-    <span class="err">@</span><span class="nx">identifier_error</span> <span class="nx">id</span>      <span class="k">if</span> <span class="nx">include</span> <span class="nx">RESERVED</span><span class="p">,</span> <span class="nx">id</span>
-    <span class="nv">tag: </span><span class="s1">&#39;LEADING_WHEN&#39;</span>       <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;WHEN&#39;</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">LINE_BREAK</span><span class="p">,</span> <span class="err">@</span><span class="nx">tag</span><span class="p">()</span>
-    <span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">id</span><span class="p">.</span><span class="nx">length</span>
-    <span class="k">if</span> <span class="o">not</span> <span class="nx">accessed</span>
-      <span class="nv">tag: id: </span><span class="nx">CONVERSIONS</span><span class="p">[</span><span class="nx">id</span><span class="p">]</span>         <span class="k">if</span> <span class="nx">include</span> <span class="nx">COFFEE_ALIASES</span><span class="p">,</span> <span class="nx">id</span>
-      <span class="k">return</span> <span class="err">@</span><span class="nx">tag_half_assignment</span><span class="p">(</span><span class="nx">tag</span><span class="p">)</span> <span class="k">if</span> <span class="err">@</span><span class="nx">prev</span><span class="p">()</span> <span class="o">and</span> <span class="err">@</span><span class="nx">prev</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;ASSIGN&#39;</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">HALF_ASSIGNMENTS</span><span class="p">,</span> <span class="nx">tag</span>
-    <span class="err">@</span><span class="nx">token</span><span class="p">(</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Matches numbers, including decimals, hex, and exponential notation.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">number_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">number: </span><span class="err">@</span><span class="nx">match</span> <span class="nx">NUMBER</span><span class="p">,</span> <span class="mi">1</span>
-    <span class="err">@</span><span class="nx">token</span> <span class="s1">&#39;NUMBER&#39;</span><span class="p">,</span> <span class="nx">number</span>
-    <span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">number</span><span class="p">.</span><span class="nx">length</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>Matches strings, including multi-line strings. Ensures that quotation marks
-are balanced within the string's contents, and within nested interpolations.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">string_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nx">starts</span><span class="p">(</span><span class="err">@</span><span class="nx">chunk</span><span class="p">,</span> <span class="s1">&#39;&quot;&#39;</span><span class="p">)</span> <span class="o">or</span> <span class="nx">starts</span><span class="p">(</span><span class="err">@</span><span class="nx">chunk</span><span class="p">,</span> <span class="s2">&quot;&#39;&quot;</span><span class="p">)</span>
+    <span class="nv">tag: </span><span class="nx">id</span><span class="p">.</span><span class="nx">toUpperCase</span><span class="p">()</span> <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">JS_KEYWORDS</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span> <span class="o">or</span> <span class="p">(</span><span class="o">not</span> <span class="nx">forcedIdentifier</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">COFFEE_KEYWORDS</span><span class="p">,</span> <span class="nx">id</span><span class="p">))</span>
+    <span class="nv">tag: </span><span class="s1">&#39;LEADING_WHEN&#39;</span>   <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;WHEN&#39;</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">LINE_BREAK</span><span class="p">,</span> <span class="nx">@tag</span><span class="p">()</span>
+    <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">JS_FORBIDDEN</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
+      <span class="k">if</span> <span class="nx">forcedIdentifier</span>
+        <span class="nv">tag: </span><span class="s1">&#39;STRING&#39;</span>
+        <span class="nv">id: </span> <span class="s2">&quot;&#39;$id&#39;&quot;</span>
+        <span class="k">if</span> <span class="nx">forcedIdentifier</span> <span class="o">is</span> <span class="s1">&#39;accessor&#39;</span>
+          <span class="nv">close_index: </span><span class="kc">true</span>
+          <span class="nx">@tokens</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span> <span class="k">if</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">isnt</span> <span class="s1">&#39;@&#39;</span>
+          <span class="nx">@token</span> <span class="s1">&#39;INDEX_START&#39;</span><span class="p">,</span> <span class="s1">&#39;[&#39;</span>
+      <span class="k">else</span> <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">RESERVED</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
+        <span class="nx">@identifierError</span> <span class="nx">id</span>
+    <span class="nx">unless</span> <span class="nx">forcedIdentifier</span>
+      <span class="nv">tag: id: </span><span class="nx">CONVERSIONS</span><span class="p">[</span><span class="nx">id</span><span class="p">]</span>      <span class="k">if</span> <span class="nx">include</span> <span class="nx">COFFEE_ALIASES</span><span class="p">,</span> <span class="nx">id</span>
+      <span class="k">return</span> <span class="nx">@tagHalfAssignment</span> <span class="nx">tag</span> <span class="k">if</span> <span class="nx">@prev</span><span class="p">()</span> <span class="o">and</span> <span class="nx">@prev</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;ASSIGN&#39;</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">HALF_ASSIGNMENTS</span><span class="p">,</span> <span class="nx">tag</span>
+    <span class="nx">@token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">id</span>
+    <span class="nx">@token</span> <span class="s1">&#39;]&#39;</span><span class="p">,</span> <span class="s1">&#39;]&#39;</span> <span class="k">if</span> <span class="nx">close_index</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Matches numbers, including decimals, hex, and exponential notation.
+Be careful not to interfere with ranges-in-progress.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">numberToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">number: </span><span class="nx">@match</span> <span class="nx">NUMBER</span><span class="p">,</span> <span class="mi">1</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="k">if</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;.&#39;</span> <span class="o">and</span> <span class="nx">starts</span> <span class="nx">number</span><span class="p">,</span> <span class="s1">&#39;.&#39;</span>
+    <span class="vi">@i: </span><span class="o">+</span> <span class="nx">number</span><span class="p">.</span><span class="nx">length</span>
+    <span class="nx">@token</span> <span class="s1">&#39;NUMBER&#39;</span><span class="p">,</span> <span class="nx">number</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Matches strings, including multi-line strings. Ensures that quotation marks
+are balanced within the string's contents, and within nested interpolations.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">stringToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nx">starts</span><span class="p">(</span><span class="nx">@chunk</span><span class="p">,</span> <span class="s1">&#39;&quot;&#39;</span><span class="p">)</span> <span class="o">or</span> <span class="nx">starts</span><span class="p">(</span><span class="nx">@chunk</span><span class="p">,</span> <span class="s2">&quot;&#39;&quot;</span><span class="p">)</span>
     <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">string:</span>
-      <span class="err">@</span><span class="nx">balanced_token</span><span class="p">([</span><span class="s1">&#39;&quot;&#39;</span><span class="p">,</span> <span class="s1">&#39;&quot;&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;${&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">])</span> <span class="o">or</span>
-      <span class="err">@</span><span class="nx">balanced_token</span> <span class="p">[</span><span class="s2">&quot;&#39;&quot;</span><span class="p">,</span> <span class="s2">&quot;&#39;&quot;</span><span class="p">]</span>
-    <span class="err">@</span><span class="nx">interpolate_string</span> <span class="nx">string</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">STRING_NEWLINES</span><span class="p">,</span> <span class="s2">&quot; \\\n&quot;</span><span class="p">)</span>
-    <span class="err">@</span><span class="nv">line: </span><span class="o">+</span> <span class="nx">count</span> <span class="nx">string</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span>
-    <span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">string</span><span class="p">.</span><span class="nx">length</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-13">#</a>               </div>               <p>Matches heredocs, adjusting indentation to the correct level, as heredocs
-preserve whitespace, but ignore indentation to the left.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">heredoc_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">match: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">HEREDOC</span><span class="p">)</span>
-    <span class="nv">quote: </span><span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">substr</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
-    <span class="nv">doc: </span><span class="err">@</span><span class="nx">sanitize_heredoc</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">or</span> <span class="nx">match</span><span class="p">[</span><span class="mi">4</span><span class="p">],</span> <span class="nx">quote</span>
-    <span class="err">@</span><span class="nx">interpolate_string</span> <span class="s2">&quot;$quote$doc$quote&quot;</span>
-    <span class="err">@</span><span class="nv">line: </span><span class="o">+</span> <span class="nx">count</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s2">&quot;\n&quot;</span>
-    <span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">length</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-14">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-14">#</a>               </div>               <p>Matches JavaScript interpolated directly into the source via backticks.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">js_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nx">starts</span> <span class="err">@</span><span class="nx">chunk</span><span class="p">,</span> <span class="s1">&#39;`&#39;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">script: </span><span class="err">@</span><span class="nx">balanced_token</span> <span class="p">[</span><span class="s1">&#39;`&#39;</span><span class="p">,</span> <span class="s1">&#39;`&#39;</span><span class="p">]</span>
-    <span class="err">@</span><span class="nx">token</span> <span class="s1">&#39;JS&#39;</span><span class="p">,</span> <span class="nx">script</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">JS_CLEANER</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
-    <span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">script</span><span class="p">.</span><span class="nx">length</span>
+      <span class="nx">@balancedToken</span><span class="p">([</span><span class="s1">&#39;&quot;&#39;</span><span class="p">,</span> <span class="s1">&#39;&quot;&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;${&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">])</span> <span class="o">or</span>
+      <span class="nx">@balancedToken</span> <span class="p">[</span><span class="s2">&quot;&#39;&quot;</span><span class="p">,</span> <span class="s2">&quot;&#39;&quot;</span><span class="p">]</span>
+    <span class="nx">@interpolateString</span> <span class="nx">string</span><span class="p">.</span><span class="nx">replace</span> <span class="nx">STRING_NEWLINES</span><span class="p">,</span> <span class="s2">&quot; \\\n&quot;</span>
+    <span class="vi">@line: </span><span class="o">+</span> <span class="nx">count</span> <span class="nx">string</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span>
+    <span class="vi">@i: </span><span class="o">+</span> <span class="nx">string</span><span class="p">.</span><span class="nx">length</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>Matches heredocs, adjusting indentation to the correct level, as heredocs
+preserve whitespace, but ignore indentation to the left.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">heredocToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">match: </span><span class="nx">@chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">HEREDOC</span><span class="p">)</span>
+    <span class="nv">quote: </span><span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">substr</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
+    <span class="nv">doc: </span><span class="nx">@sanitizeHeredoc</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">or</span> <span class="nx">match</span><span class="p">[</span><span class="mi">4</span><span class="p">],</span> <span class="p">{</span><span class="nx">quote</span><span class="p">}</span>
+    <span class="nx">@interpolateString</span> <span class="s2">&quot;$quote$doc$quote&quot;</span>
+    <span class="vi">@line: </span><span class="o">+</span> <span class="nx">count</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s2">&quot;\n&quot;</span>
+    <span class="vi">@i: </span><span class="o">+</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">length</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-13">#</a>               </div>               <p>Matches and conumes comments.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">commentToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">match: </span><span class="nx">@chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">COMMENT</span><span class="p">)</span>
+    <span class="vi">@line: </span><span class="o">+</span> <span class="nx">count</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s2">&quot;\n&quot;</span>
+    <span class="vi">@i: </span><span class="o">+</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">length</span>
+    <span class="k">if</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
+      <span class="nv">comment: </span><span class="nx">@sanitizeHeredoc</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="p">{</span><span class="nv">herecomment: </span><span class="kc">true</span><span class="p">}</span>
+      <span class="nx">@token</span> <span class="s1">&#39;HERECOMMENT&#39;</span><span class="p">,</span> <span class="nx">comment</span><span class="p">.</span><span class="nx">split</span> <span class="nx">MULTILINER</span>
+      <span class="nx">@token</span> <span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s1">&#39;\n&#39;</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-14">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-14">#</a>               </div>               <p>Matches JavaScript interpolated directly into the source via backticks.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">jsToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nx">starts</span> <span class="nx">@chunk</span><span class="p">,</span> <span class="s1">&#39;`&#39;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">script: </span><span class="nx">@balancedToken</span> <span class="p">[</span><span class="s1">&#39;`&#39;</span><span class="p">,</span> <span class="s1">&#39;`&#39;</span><span class="p">]</span>
+    <span class="nx">@token</span> <span class="s1">&#39;JS&#39;</span><span class="p">,</span> <span class="nx">script</span><span class="p">.</span><span class="nx">replace</span> <span class="nx">JS_CLEANER</span><span class="p">,</span> <span class="s1">&#39;&#39;</span>
+    <span class="vi">@i: </span><span class="o">+</span> <span class="nx">script</span><span class="p">.</span><span class="nx">length</span>
     <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-15">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-15">#</a>               </div>               <p>Matches regular expression literals. Lexing regular expressions is difficult
 to distinguish from division, so we borrow some basic heuristics from
-JavaScript and Ruby, borrow slash balancing from <code>@balanced_token</code>, and
-borrow interpolation from <code>@interpolate_string</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">regex_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span> <span class="nx">REGEX_START</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="k">if</span>     <span class="nx">include</span> <span class="nx">NOT_REGEX</span><span class="p">,</span> <span class="err">@</span><span class="nx">tag</span><span class="p">()</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">regex: </span><span class="err">@</span><span class="nx">balanced_token</span> <span class="p">[</span><span class="s1">&#39;/&#39;</span><span class="p">,</span> <span class="s1">&#39;/&#39;</span><span class="p">]</span>
-    <span class="nv">regex: </span><span class="o">+</span> <span class="p">(</span><span class="nv">flags: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">substr</span><span class="p">(</span><span class="nx">regex</span><span class="p">.</span><span class="nx">length</span><span class="p">).</span><span class="nx">match</span><span class="p">(</span><span class="nx">REGEX_FLAGS</span><span class="p">))</span>
+JavaScript and Ruby, borrow slash balancing from <code>@balancedToken</code>, and
+borrow interpolation from <code>@interpolateString</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">regexToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nx">@chunk</span><span class="p">.</span><span class="nx">match</span> <span class="nx">REGEX_START</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="k">if</span>     <span class="nx">include</span> <span class="nx">NOT_REGEX</span><span class="p">,</span> <span class="nx">@tag</span><span class="p">()</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">regex: </span><span class="nx">@balancedToken</span> <span class="p">[</span><span class="s1">&#39;/&#39;</span><span class="p">,</span> <span class="s1">&#39;/&#39;</span><span class="p">]</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">end: </span><span class="nx">@chunk</span><span class="p">.</span><span class="nx">substr</span><span class="p">(</span><span class="nx">regex</span><span class="p">.</span><span class="nx">length</span><span class="p">).</span><span class="nx">match</span> <span class="nx">REGEX_END</span>
+    <span class="nv">regex: </span><span class="o">+</span> <span class="nv">flags: </span><span class="nx">end</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="k">if</span> <span class="nx">end</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
     <span class="k">if</span> <span class="nx">regex</span><span class="p">.</span><span class="nx">match</span> <span class="nx">REGEX_INTERPOLATION</span>
       <span class="nv">str: </span><span class="nx">regex</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">1</span><span class="p">).</span><span class="nx">split</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
       <span class="nv">str: </span><span class="nx">str</span><span class="p">.</span><span class="nx">replace</span> <span class="nx">REGEX_ESCAPE</span><span class="p">,</span> <span class="p">(</span><span class="nx">escaped</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="s1">&#39;\\&#39;</span> <span class="o">+</span> <span class="nx">escaped</span>
-      <span class="err">@</span><span class="nv">tokens: </span><span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[[</span><span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="s1">&#39;(&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;NEW&#39;</span><span class="p">,</span> <span class="s1">&#39;new&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="s1">&#39;RegExp&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;CALL_START&#39;</span><span class="p">,</span> <span class="s1">&#39;(&#39;</span><span class="p">]]</span>
-      <span class="err">@</span><span class="nx">interpolate_string</span> <span class="s2">&quot;\&quot;$str\&quot;&quot;</span><span class="p">,</span> <span class="kc">yes</span>
-      <span class="err">@</span><span class="nv">tokens: </span><span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[[</span><span class="s1">&#39;,&#39;</span><span class="p">,</span> <span class="s1">&#39;,&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s2">&quot;\&quot;$flags\&quot;&quot;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">]]</span>
+      <span class="vi">@tokens: </span><span class="nx">@tokens</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[[</span><span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="s1">&#39;(&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;NEW&#39;</span><span class="p">,</span> <span class="s1">&#39;new&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="s1">&#39;RegExp&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;CALL_START&#39;</span><span class="p">,</span> <span class="s1">&#39;(&#39;</span><span class="p">]]</span>
+      <span class="nx">@interpolateString</span> <span class="s2">&quot;\&quot;$str\&quot;&quot;</span><span class="p">,</span> <span class="kc">yes</span>
+      <span class="vi">@tokens: </span><span class="nx">@tokens</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[[</span><span class="s1">&#39;,&#39;</span><span class="p">,</span> <span class="s1">&#39;,&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s2">&quot;\&quot;$flags\&quot;&quot;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">]]</span>
     <span class="k">else</span>
-      <span class="err">@</span><span class="nx">token</span> <span class="s1">&#39;REGEX&#39;</span><span class="p">,</span> <span class="nx">regex</span>
-    <span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">regex</span><span class="p">.</span><span class="nx">length</span>
+      <span class="nx">@token</span> <span class="s1">&#39;REGEX&#39;</span><span class="p">,</span> <span class="nx">regex</span>
+    <span class="vi">@i: </span><span class="o">+</span> <span class="nx">regex</span><span class="p">.</span><span class="nx">length</span>
     <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-16">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-16">#</a>               </div>               <p>Matches a token in which which the passed delimiter pairs must be correctly
-balanced (ie. strings, JS literals).</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">balanced_token: </span><span class="p">(</span><span class="nx">delimited</span><span class="p">...)</span> <span class="o">-&gt;</span>
-    <span class="nx">balanced_string</span> <span class="err">@</span><span class="nx">chunk</span><span class="p">,</span> <span class="nx">delimited</span></pre></div>             </td>           </tr>                               <tr id="section-17">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-17">#</a>               </div>               <p>Matches and conumes comments. We pass through comments into JavaScript,
-so they're treated as real tokens, like any other part of the language.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">comment_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">comment: </span><span class="err">@</span><span class="nx">match</span> <span class="nx">COMMENT</span><span class="p">,</span> <span class="mi">1</span>
-    <span class="err">@</span><span class="nv">line: </span><span class="o">+</span> <span class="p">(</span><span class="nx">comment</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">MULTILINER</span><span class="p">)</span> <span class="o">or</span> <span class="p">[]).</span><span class="nx">length</span>
-    <span class="nv">lines: </span><span class="nx">compact</span> <span class="nx">comment</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">COMMENT_CLEANER</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">).</span><span class="nx">split</span><span class="p">(</span><span class="nx">MULTILINER</span><span class="p">)</span>
-    <span class="nv">i: </span><span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
-    <span class="k">if</span> <span class="err">@</span><span class="nx">unfinished</span><span class="p">()</span>
-      <span class="nv">i: </span><span class="o">-</span> <span class="mi">1</span> <span class="k">while</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">include</span> <span class="nx">LINE_BREAK</span><span class="p">,</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span>
-    <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;COMMENT&#39;</span><span class="p">,</span> <span class="nx">lines</span><span class="p">,</span> <span class="err">@</span><span class="nx">line</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s1">&#39;\n&#39;</span><span class="p">,</span> <span class="err">@</span><span class="nx">line</span><span class="p">])</span>
-    <span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">comment</span><span class="p">.</span><span class="nx">length</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-18">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-18">#</a>               </div>               <p>Matches newlines, indents, and outdents, and determines which is which.
+balanced (ie. strings, JS literals).</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">balancedToken: </span><span class="p">(</span><span class="nx">delimited</span><span class="p">...)</span> <span class="o">-&gt;</span>
+    <span class="nx">@balancedString</span> <span class="nx">@chunk</span><span class="p">,</span> <span class="nx">delimited</span></pre></div>             </td>           </tr>                               <tr id="section-17">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-17">#</a>               </div>               <p>Matches newlines, indents, and outdents, and determines which is which.
 If we can detect that the current line is continued onto the the next line,
 then the newline is suppressed:</p>
 
@@ -143,108 +145,149 @@ then the newline is suppressed:</p>
 </code></pre>
 
 <p>Keeps track of the level of indentation, because a single outdent token
-can close multiple indents, so we need to know how far in we happen to be.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">line_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">indent: </span><span class="err">@</span><span class="nx">match</span> <span class="nx">MULTI_DENT</span><span class="p">,</span> <span class="mi">1</span>
-    <span class="err">@</span><span class="nv">line: </span><span class="o">+</span> <span class="nx">indent</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">MULTILINER</span><span class="p">).</span><span class="nx">length</span>
-    <span class="err">@</span><span class="nx">i</span>   <span class="o">:</span> <span class="o">+</span> <span class="nx">indent</span><span class="p">.</span><span class="nx">length</span>
-    <span class="nv">prev: </span><span class="err">@</span><span class="nx">prev</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
+can close multiple indents, so we need to know how far in we happen to be.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">lineToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">indent: </span><span class="nx">@match</span> <span class="nx">MULTI_DENT</span><span class="p">,</span> <span class="mi">1</span>
+    <span class="vi">@line: </span><span class="o">+</span> <span class="nx">count</span> <span class="nx">indent</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span>
+    <span class="vi">@i   : </span><span class="o">+</span> <span class="nx">indent</span><span class="p">.</span><span class="nx">length</span>
+    <span class="nv">prev: </span><span class="nx">@prev</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
     <span class="nv">size: </span><span class="nx">indent</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LAST_DENTS</span><span class="p">).</span><span class="nx">reverse</span><span class="p">()[</span><span class="mi">0</span><span class="p">].</span><span class="nx">match</span><span class="p">(</span><span class="nx">LAST_DENT</span><span class="p">)[</span><span class="mi">1</span><span class="p">].</span><span class="nx">length</span>
-    <span class="nv">next_character: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">MULTI_DENT</span><span class="p">)[</span><span class="mi">4</span><span class="p">]</span>
-    <span class="nv">no_newlines: </span><span class="nx">next_character</span> <span class="o">is</span> <span class="s1">&#39;.&#39;</span> <span class="o">or</span> <span class="err">@</span><span class="nx">unfinished</span><span class="p">()</span>
-    <span class="k">if</span> <span class="nx">size</span> <span class="o">is</span> <span class="err">@</span><span class="nx">indent</span>
-      <span class="k">return</span> <span class="err">@</span><span class="nx">suppress_newlines</span><span class="p">()</span> <span class="k">if</span> <span class="nx">no_newlines</span>
-      <span class="k">return</span> <span class="err">@</span><span class="nx">newline_token</span><span class="p">(</span><span class="nx">indent</span><span class="p">)</span>
-    <span class="k">else</span> <span class="k">if</span> <span class="nx">size</span> <span class="o">&gt;</span> <span class="err">@</span><span class="nx">indent</span>
-      <span class="k">return</span> <span class="err">@</span><span class="nx">suppress_newlines</span><span class="p">()</span> <span class="k">if</span> <span class="nx">no_newlines</span>
-      <span class="nv">diff: </span><span class="nx">size</span> <span class="o">-</span> <span class="err">@</span><span class="nx">indent</span>
-      <span class="err">@</span><span class="nx">token</span> <span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="nx">diff</span>
-      <span class="err">@</span><span class="nx">indents</span><span class="p">.</span><span class="nx">push</span> <span class="nx">diff</span>
+    <span class="nv">nextCharacter: </span><span class="nx">@match</span> <span class="nx">NEXT_CHARACTER</span><span class="p">,</span> <span class="mi">1</span>
+    <span class="nv">noNewlines: </span><span class="nx">nextCharacter</span> <span class="o">is</span> <span class="s1">&#39;.&#39;</span> <span class="o">or</span> <span class="nx">nextCharacter</span> <span class="o">is</span> <span class="s1">&#39;,&#39;</span> <span class="o">or</span> <span class="nx">@unfinished</span><span class="p">()</span>
+    <span class="k">if</span> <span class="nx">size</span> <span class="o">is</span> <span class="nx">@indent</span>
+      <span class="k">return</span> <span class="nx">@suppressNewlines</span><span class="p">()</span> <span class="k">if</span> <span class="nx">noNewlines</span>
+      <span class="k">return</span> <span class="nx">@newlineToken</span> <span class="nx">indent</span>
+    <span class="k">else</span> <span class="k">if</span> <span class="nx">size</span> <span class="o">&gt;</span> <span class="nx">@indent</span>
+      <span class="k">return</span> <span class="nx">@suppressNewlines</span><span class="p">()</span> <span class="k">if</span> <span class="nx">noNewlines</span>
+      <span class="nv">diff: </span><span class="nx">size</span> <span class="o">-</span> <span class="nx">@indent</span>
+      <span class="nx">@token</span> <span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="nx">diff</span>
+      <span class="nx">@indents</span><span class="p">.</span><span class="nx">push</span> <span class="nx">diff</span>
     <span class="k">else</span>
-      <span class="err">@</span><span class="nx">outdent_token</span> <span class="err">@</span><span class="nx">indent</span> <span class="o">-</span> <span class="nx">size</span><span class="p">,</span> <span class="nx">no_newlines</span>
-    <span class="err">@</span><span class="nv">indent: </span><span class="nx">size</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-19">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-19">#</a>               </div>               <p>Record an outdent token or multiple tokens, if we happen to be moving back
-inwards past several recorded indents.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">outdent_token: </span><span class="p">(</span><span class="nx">move_out</span><span class="p">,</span> <span class="nx">no_newlines</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="k">while</span> <span class="nx">move_out</span> <span class="o">&gt;</span> <span class="mi">0</span> <span class="o">and</span> <span class="err">@</span><span class="nx">indents</span><span class="p">.</span><span class="nx">length</span>
-      <span class="nv">last_indent: </span><span class="err">@</span><span class="nx">indents</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
-      <span class="err">@</span><span class="nx">token</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">,</span> <span class="nx">last_indent</span>
-      <span class="nv">move_out: </span><span class="o">-</span> <span class="nx">last_indent</span>
-    <span class="err">@</span><span class="nx">token</span> <span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span> <span class="nx">unless</span> <span class="err">@</span><span class="nx">tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span> <span class="o">or</span> <span class="nx">no_newlines</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-20">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-20">#</a>               </div>               <p>Matches and consumes non-meaningful whitespace. Tag the previous token
-as being "spaced", because there are some cases where it makes a difference.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">whitespace_token: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">space: </span><span class="err">@</span><span class="nx">match</span> <span class="nx">WHITESPACE</span><span class="p">,</span> <span class="mi">1</span>
-    <span class="nv">prev: </span><span class="err">@</span><span class="nx">prev</span><span class="p">()</span>
+      <span class="nx">@outdentToken</span> <span class="nx">@indent</span> <span class="o">-</span> <span class="nx">size</span><span class="p">,</span> <span class="nx">noNewlines</span>
+    <span class="vi">@indent: </span><span class="nx">size</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-18">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-18">#</a>               </div>               <p>Record an outdent token or multiple tokens, if we happen to be moving back
+inwards past several recorded indents.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">outdentToken: </span><span class="p">(</span><span class="nx">moveOut</span><span class="p">,</span> <span class="nx">noNewlines</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="k">if</span> <span class="nx">moveOut</span> <span class="o">&gt;</span> <span class="o">-</span><span class="nx">@outdebt</span>
+      <span class="k">while</span> <span class="nx">moveOut</span> <span class="o">&gt;</span> <span class="mi">0</span> <span class="o">and</span> <span class="nx">@indents</span><span class="p">.</span><span class="nx">length</span>
+        <span class="nv">lastIndent: </span><span class="nx">@indents</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
+        <span class="nx">@token</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">,</span> <span class="nx">lastIndent</span>
+        <span class="nv">moveOut: </span><span class="o">-</span> <span class="nx">lastIndent</span>
+    <span class="k">else</span>
+      <span class="vi">@outdebt: </span><span class="o">+</span> <span class="nx">moveOut</span>
+    <span class="vi">@outdebt: </span><span class="nx">moveOut</span> <span class="nx">unless</span> <span class="nx">noNewlines</span>
+    <span class="nx">@token</span> <span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span> <span class="nx">unless</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span> <span class="o">or</span> <span class="nx">noNewlines</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-19">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-19">#</a>               </div>               <p>Matches and consumes non-meaningful whitespace. Tag the previous token
+as being "spaced", because there are some cases where it makes a difference.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">whitespaceToken: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">space: </span><span class="nx">@match</span> <span class="nx">WHITESPACE</span><span class="p">,</span> <span class="mi">1</span>
+    <span class="nv">prev: </span><span class="nx">@prev</span><span class="p">()</span>
     <span class="nv">prev.spaced: </span><span class="kc">true</span> <span class="k">if</span> <span class="nx">prev</span>
-    <span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">space</span><span class="p">.</span><span class="nx">length</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-21">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-21">#</a>               </div>               <p>Generate a newline token. Consecutive newlines get merged together.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">newline_token: </span><span class="p">(</span><span class="nx">newlines</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">token</span> <span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span> <span class="nx">unless</span> <span class="err">@</span><span class="nx">tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-22">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-22">#</a>               </div>               <p>Use a <code>\</code> at a line-ending to suppress the newline.
-The slash is removed here once its job is done.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">suppress_newlines: </span><span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span> <span class="k">if</span> <span class="err">@</span><span class="nx">value</span><span class="p">()</span> <span class="o">is</span> <span class="s2">&quot;\\&quot;</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-23">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-23">#</a>               </div>               <p>We treat all other single characters as a token. Eg.: <code>( ) , . !</code>
+    <span class="vi">@i: </span><span class="o">+</span> <span class="nx">space</span><span class="p">.</span><span class="nx">length</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-20">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-20">#</a>               </div>               <p>Generate a newline token. Consecutive newlines get merged together.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">newlineToken: </span><span class="p">(</span><span class="nx">newlines</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="nx">@token</span> <span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span> <span class="nx">unless</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-21">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-21">#</a>               </div>               <p>Use a <code>\</code> at a line-ending to suppress the newline.
+The slash is removed here once its job is done.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">suppressNewlines: </span><span class="o">-&gt;</span>
+    <span class="nx">@tokens</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span> <span class="k">if</span> <span class="nx">@value</span><span class="p">()</span> <span class="o">is</span> <span class="s2">&quot;\\&quot;</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-22">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-22">#</a>               </div>               <p>We treat all other single characters as a token. Eg.: <code>( ) , . !</code>
 Multi-character operators are also literal tokens, so that Jison can assign
 the proper order of operations. There are some symbols that we tag specially
 here. <code>;</code> and newlines are both treated as a <code>TERMINATOR</code>, we distinguish
-parentheses that indicate a method call from regular parentheses, and so on.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">literal_token: </span><span class="o">-&gt;</span>
-    <span class="nv">match: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">OPERATOR</span><span class="p">)</span>
+parentheses that indicate a method call from regular parentheses, and so on.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">literalToken: </span><span class="o">-&gt;</span>
+    <span class="nv">match: </span><span class="nx">@chunk</span><span class="p">.</span><span class="nx">match</span> <span class="nx">OPERATOR</span>
     <span class="nv">value: </span><span class="nx">match</span> <span class="o">and</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
     <span class="nv">space: </span><span class="nx">match</span> <span class="o">and</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
-    <span class="err">@</span><span class="nx">tag_parameters</span><span class="p">()</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">and</span> <span class="nx">value</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">CODE</span><span class="p">)</span>
-    <span class="nv">value: </span><span class="o">or</span> <span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">substr</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
-    <span class="nv">prev_spaced: </span><span class="err">@</span><span class="nx">prev</span><span class="p">()</span> <span class="o">and</span> <span class="err">@</span><span class="nx">prev</span><span class="p">().</span><span class="nx">spaced</span>
+    <span class="nx">@tagParameters</span><span class="p">()</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">and</span> <span class="nx">value</span><span class="p">.</span><span class="nx">match</span> <span class="nx">CODE</span>
+    <span class="nv">value: </span><span class="o">or</span> <span class="nx">@chunk</span><span class="p">.</span><span class="nx">substr</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
+    <span class="nv">prevSpaced: </span><span class="nx">@prev</span><span class="p">()</span> <span class="o">and</span> <span class="nx">@prev</span><span class="p">().</span><span class="nx">spaced</span>
     <span class="nv">tag: </span><span class="nx">value</span>
-    <span class="k">if</span> <span class="nx">value</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">ASSIGNMENT</span><span class="p">)</span>
+    <span class="k">if</span> <span class="nx">value</span><span class="p">.</span><span class="nx">match</span> <span class="nx">ASSIGNMENT</span>
       <span class="nv">tag: </span><span class="s1">&#39;ASSIGN&#39;</span>
-      <span class="err">@</span><span class="nx">assignment_error</span><span class="p">()</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">JS_FORBIDDEN</span><span class="p">,</span> <span class="err">@</span><span class="nx">value</span>
+      <span class="nx">@assignmentError</span><span class="p">()</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">JS_FORBIDDEN</span><span class="p">,</span> <span class="nx">@value</span>
     <span class="k">else</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">&#39;;&#39;</span>
       <span class="nv">tag: </span><span class="s1">&#39;TERMINATOR&#39;</span>
-    <span class="k">else</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">&#39;[&#39;</span> <span class="o">and</span> <span class="err">@</span><span class="nx">tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;?&#39;</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">prev_spaced</span>
-      <span class="nv">tag: </span><span class="s1">&#39;SOAKED_INDEX_START&#39;</span>
-      <span class="err">@</span><span class="nv">soaked_index: </span><span class="kc">true</span>
-      <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
-    <span class="k">else</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">&#39;]&#39;</span> <span class="o">and</span> <span class="err">@</span><span class="nx">soaked_index</span>
-      <span class="nv">tag: </span><span class="s1">&#39;SOAKED_INDEX_END&#39;</span>
-      <span class="err">@</span><span class="nv">soaked_index: </span><span class="kc">false</span>
-    <span class="k">else</span> <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">CALLABLE</span><span class="p">,</span> <span class="err">@</span><span class="nx">tag</span><span class="p">())</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">prev_spaced</span>
-      <span class="nv">tag: </span><span class="s1">&#39;CALL_START&#39;</span>  <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">&#39;(&#39;</span>
-      <span class="nv">tag: </span><span class="s1">&#39;INDEX_START&#39;</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">&#39;[&#39;</span>
-    <span class="err">@</span><span class="nv">i: </span><span class="o">+</span> <span class="nx">value</span><span class="p">.</span><span class="nx">length</span>
-    <span class="k">return</span> <span class="err">@</span><span class="nx">tag_half_assignment</span><span class="p">(</span><span class="nx">tag</span><span class="p">)</span> <span class="k">if</span> <span class="nx">space</span> <span class="o">and</span> <span class="nx">prev_spaced</span> <span class="o">and</span> <span class="err">@</span><span class="nx">prev</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;ASSIGN&#39;</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">HALF_ASSIGNMENTS</span><span class="p">,</span> <span class="nx">tag</span>
-    <span class="err">@</span><span class="nx">token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-24">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-24">#</a>               </div>               <h2>Token Manipulators</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-25">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-25">#</a>               </div>               <p>As we consume a new <code>IDENTIFIER</code>, look at the previous token to determine
-if it's a special kind of accessor.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">name_access_type: </span><span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">tag</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="s1">&#39;PROTOTYPE_ACCESS&#39;</span><span class="p">)</span> <span class="k">if</span> <span class="err">@</span><span class="nx">value</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;::&#39;</span>
-    <span class="k">if</span> <span class="err">@</span><span class="nx">value</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;.&#39;</span> <span class="o">and</span> <span class="o">not</span> <span class="p">(</span><span class="err">@</span><span class="nx">value</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span> <span class="o">is</span> <span class="s1">&#39;.&#39;</span><span class="p">)</span>
-      <span class="k">if</span> <span class="err">@</span><span class="nx">tag</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span> <span class="o">is</span> <span class="s1">&#39;?&#39;</span>
-        <span class="err">@</span><span class="nx">tag</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="s1">&#39;SOAK_ACCESS&#39;</span><span class="p">)</span>
-        <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="o">-</span><span class="mi">2</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
+    <span class="k">else</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">&#39;?&#39;</span> <span class="o">and</span> <span class="nx">prevSpaced</span>
+      <span class="nv">tag: </span><span class="s1">&#39;OP?&#39;</span>
+    <span class="k">else</span> <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">CALLABLE</span><span class="p">,</span> <span class="nx">@tag</span><span class="p">())</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">prevSpaced</span>
+      <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">&#39;(&#39;</span>
+        <span class="nv">tag: </span><span class="s1">&#39;CALL_START&#39;</span>
+      <span class="k">else</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">&#39;[&#39;</span>
+        <span class="nv">tag: </span><span class="s1">&#39;INDEX_START&#39;</span>
+        <span class="nx">@tag</span> <span class="mi">1</span><span class="p">,</span> <span class="s1">&#39;INDEX_SOAK&#39;</span>  <span class="k">if</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;?&#39;</span>
+        <span class="nx">@tag</span> <span class="mi">1</span><span class="p">,</span> <span class="s1">&#39;INDEX_PROTO&#39;</span> <span class="k">if</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">&#39;::&#39;</span>
+    <span class="vi">@i: </span><span class="o">+</span> <span class="nx">value</span><span class="p">.</span><span class="nx">length</span>
+    <span class="k">return</span> <span class="nx">@tagHalfAssignment</span> <span class="nx">tag</span> <span class="k">if</span> <span class="nx">space</span> <span class="o">and</span> <span class="nx">prevSpaced</span> <span class="o">and</span> <span class="nx">@prev</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;ASSIGN&#39;</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">HALF_ASSIGNMENTS</span><span class="p">,</span> <span class="nx">tag</span>
+    <span class="nx">@token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-23">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-23">#</a>               </div>               <h2>Token Manipulators</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-24">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-24">#</a>               </div>               <p>As we consume a new <code>IDENTIFIER</code>, look at the previous token to determine
+if it's a special kind of accessor. Return <code>true</code> if any type of accessor
+is the previous token.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">tagAccessor: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="k">if</span> <span class="p">(</span><span class="o">not</span> <span class="nv">prev: </span><span class="nx">@prev</span><span class="p">())</span> <span class="o">or</span> <span class="p">(</span><span class="nx">prev</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">.</span><span class="nx">spaced</span><span class="p">)</span>
+    <span class="nv">accessor: </span><span class="k">if</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;::&#39;</span>
+      <span class="nx">@tag</span> <span class="mi">1</span><span class="p">,</span> <span class="s1">&#39;PROTOTYPE_ACCESS&#39;</span>
+    <span class="k">else</span> <span class="k">if</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;.&#39;</span> <span class="o">and</span> <span class="o">not</span> <span class="p">(</span><span class="nx">@value</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span> <span class="o">is</span> <span class="s1">&#39;.&#39;</span><span class="p">)</span>
+      <span class="k">if</span> <span class="nx">@tag</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span> <span class="o">is</span> <span class="s1">&#39;?&#39;</span>
+        <span class="nx">@tag</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="s1">&#39;SOAK_ACCESS&#39;</span><span class="p">)</span>
+        <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="o">-</span><span class="mi">2</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
       <span class="k">else</span>
-        <span class="err">@</span><span class="nx">tag</span> <span class="mi">1</span><span class="p">,</span> <span class="s1">&#39;PROPERTY_ACCESS&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-26">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-26">#</a>               </div>               <p>Sanitize a heredoc by escaping internal double quotes and erasing all
-external indentation on the left-hand side.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">sanitize_heredoc: </span><span class="p">(</span><span class="nx">doc</span><span class="p">,</span> <span class="nx">quote</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nv">indent: </span><span class="p">(</span><span class="nx">doc</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">HEREDOC_INDENT</span><span class="p">)</span> <span class="o">or</span> <span class="p">[</span><span class="s1">&#39;&#39;</span><span class="p">]).</span><span class="nx">sort</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span>
-    <span class="nx">doc</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="k">new</span> <span class="nb">RegExp</span><span class="p">(</span><span class="s2">&quot;^&quot;</span> <span class="o">+</span><span class="nx">indent</span><span class="p">,</span> <span class="s1">&#39;gm&#39;</span><span class="p">),</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
-       <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">MULTILINER</span><span class="p">,</span> <span class="s2">&quot;\\n&quot;</span><span class="p">)</span>
-       <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="k">new</span> <span class="nb">RegExp</span><span class="p">(</span><span class="nx">quote</span><span class="p">,</span> <span class="s1">&#39;g&#39;</span><span class="p">),</span> <span class="s1">&#39;\\&quot;&#39;</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-27">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-27">#</a>               </div>               <p>Tag a half assignment.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">tag_half_assignment: </span><span class="p">(</span><span class="nx">tag</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nv">last: </span><span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
-    <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s2">&quot;$tag=&quot;</span><span class="p">,</span> <span class="s2">&quot;$tag=&quot;</span><span class="p">,</span> <span class="nx">last</span><span class="p">[</span><span class="mi">2</span><span class="p">]]</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-28">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-28">#</a>               </div>               <p>A source of ambiguity in our grammar used to be parameter lists in function
+        <span class="nx">@tag</span> <span class="mi">1</span><span class="p">,</span> <span class="s1">&#39;PROPERTY_ACCESS&#39;</span>
+    <span class="k">else</span>
+      <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;@&#39;</span>
+    <span class="k">if</span> <span class="nx">accessor</span> <span class="k">then</span> <span class="s1">&#39;accessor&#39;</span> <span class="k">else</span> <span class="kc">false</span></pre></div>             </td>           </tr>                               <tr id="section-25">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-25">#</a>               </div>               <p>Sanitize a heredoc or herecomment by escaping internal double quotes and
+erasing all external indentation on the left-hand side.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">sanitizeHeredoc: </span><span class="p">(</span><span class="nx">doc</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="k">while</span> <span class="nv">match: </span><span class="nx">HEREDOC_INDENT</span><span class="p">.</span><span class="nx">exec</span> <span class="nx">doc</span>
+      <span class="nv">attempt: </span><span class="k">if</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span><span class="o">?</span> <span class="k">then</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="k">else</span> <span class="nx">match</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span>
+      <span class="nv">indent: </span><span class="nx">attempt</span> <span class="k">if</span> <span class="o">not</span> <span class="nx">indent</span> <span class="o">or</span> <span class="nx">attempt</span><span class="p">.</span><span class="nx">length</span> <span class="o">&lt;</span> <span class="nx">indent</span><span class="p">.</span><span class="nx">length</span>
+    <span class="nv">doc: </span><span class="nx">doc</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="k">new</span> <span class="nb">RegExp</span><span class="p">(</span><span class="s2">&quot;^&quot;</span> <span class="o">+</span><span class="nx">indent</span><span class="p">,</span> <span class="s1">&#39;gm&#39;</span><span class="p">),</span> <span class="s1">&#39;&#39;</span><span class="p">)</span>
+    <span class="k">return</span> <span class="nx">doc</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">herecomment</span>
+    <span class="nx">doc</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="nx">MULTILINER</span><span class="p">,</span> <span class="s2">&quot;\\n&quot;</span><span class="p">)</span>
+       <span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="k">new</span> <span class="nb">RegExp</span><span class="p">(</span><span class="nx">options</span><span class="p">.</span><span class="nx">quote</span><span class="p">,</span> <span class="s1">&#39;g&#39;</span><span class="p">),</span> <span class="s2">&quot;\\$options.quote&quot;</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-26">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-26">#</a>               </div>               <p>Tag a half assignment.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">tagHalfAssignment: </span><span class="p">(</span><span class="nx">tag</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="nv">tag: </span> <span class="s1">&#39;?&#39;</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;OP?&#39;</span>
+    <span class="nv">last: </span><span class="nx">@tokens</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
+    <span class="nx">@tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s2">&quot;$tag=&quot;</span><span class="p">,</span> <span class="s2">&quot;$tag=&quot;</span><span class="p">,</span> <span class="nx">last</span><span class="p">[</span><span class="mi">2</span><span class="p">]]</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-27">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-27">#</a>               </div>               <p>A source of ambiguity in our grammar used to be parameter lists in function
 definitions versus argument lists in function calls. Walk backwards, tagging
-parameters specially in order to make things easier for the parser.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">tag_parameters: </span><span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="k">if</span> <span class="err">@</span><span class="nx">tag</span><span class="p">()</span> <span class="o">isnt</span> <span class="s1">&#39;)&#39;</span>
+parameters specially in order to make things easier for the parser.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">tagParameters: </span><span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">isnt</span> <span class="s1">&#39;)&#39;</span>
     <span class="nv">i: </span><span class="mi">0</span>
-    <span class="k">while</span> <span class="kc">true</span>
+    <span class="nx">loop</span>
       <span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span>
-      <span class="nv">tok: </span><span class="err">@</span><span class="nx">prev</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
+      <span class="nv">tok: </span><span class="nx">@prev</span> <span class="nx">i</span>
       <span class="k">return</span> <span class="k">if</span> <span class="o">not</span> <span class="nx">tok</span>
       <span class="k">switch</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
-        <span class="k">when</span> <span class="s1">&#39;IDENTIFIER&#39;</span> <span class="k">then</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;PARAM&#39;</span>
-        <span class="k">when</span> <span class="s1">&#39;)&#39;</span>          <span class="k">then</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;PARAM_END&#39;</span>
-        <span class="k">when</span> <span class="s1">&#39;(&#39;</span>          <span class="k">then</span> <span class="k">return</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;PARAM_START&#39;</span>
-    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-29">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-29">#</a>               </div>               <p>Close up all remaining open blocks at the end of the file.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">close_indentation: </span><span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">outdent_token</span><span class="p">(</span><span class="err">@</span><span class="nx">indent</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-30">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-30">#</a>               </div>               <p>The error for when you try to use a forbidden word in JavaScript as
-an identifier.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">identifier_error: </span><span class="p">(</span><span class="nx">word</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;SyntaxError: Reserved word \&quot;$word\&quot; on line ${@line + 1}&quot;</span></pre></div>             </td>           </tr>                               <tr id="section-31">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-31">#</a>               </div>               <p>The error for when you try to assign to a reserved word in JavaScript,
-like "function" or "default".</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">assignment_error: </span><span class="o">-&gt;</span>
-    <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;SyntaxError: Reserved word \&quot;${@value()}\&quot; on line ${@line + 1} can&#39;t be assigned&quot;</span></pre></div>             </td>           </tr>                               <tr id="section-32">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-32">#</a>               </div>               <p>Expand variables and expressions inside double-quoted strings using
+        <span class="k">when</span> <span class="s1">&#39;IDENTIFIER&#39;</span>       <span class="k">then</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;PARAM&#39;</span>
+        <span class="k">when</span> <span class="s1">&#39;)&#39;</span>                <span class="k">then</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;PARAM_END&#39;</span>
+        <span class="k">when</span> <span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="s1">&#39;CALL_START&#39;</span>  <span class="k">then</span> <span class="k">return</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;PARAM_START&#39;</span>
+    <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-28">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-28">#</a>               </div>               <p>Close up all remaining open blocks at the end of the file.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">closeIndentation: </span><span class="o">-&gt;</span>
+    <span class="nx">@outdentToken</span> <span class="nx">@indent</span></pre></div>             </td>           </tr>                               <tr id="section-29">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-29">#</a>               </div>               <p>The error for when you try to use a forbidden word in JavaScript as
+an identifier.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">identifierError: </span><span class="p">(</span><span class="nx">word</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;SyntaxError: Reserved word \&quot;$word\&quot; on line ${@line + 1}&quot;</span></pre></div>             </td>           </tr>                               <tr id="section-30">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-30">#</a>               </div>               <p>The error for when you try to assign to a reserved word in JavaScript,
+like "function" or "default".</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">assignmentError: </span><span class="o">-&gt;</span>
+    <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;SyntaxError: Reserved word \&quot;${@value()}\&quot; on line ${@line + 1} can&#39;t be assigned&quot;</span></pre></div>             </td>           </tr>                               <tr id="section-31">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-31">#</a>               </div>               <p>Matches a balanced group such as a single or double-quoted string. Pass in
+a series of delimiters, all of which must be nested correctly within the
+contents of the string. This method allows us to have strings within
+interpolations within strings, ad infinitum.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">balancedString: </span><span class="p">(</span><span class="nx">str</span><span class="p">,</span> <span class="nx">delimited</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="nv">options: </span><span class="o">or</span> <span class="p">{}</span>
+    <span class="nv">slash: </span><span class="nx">delimited</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;/&#39;</span>
+    <span class="nv">levels: </span><span class="p">[]</span>
+    <span class="nv">i: </span><span class="mi">0</span>
+    <span class="k">while</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">str</span><span class="p">.</span><span class="nx">length</span>
+      <span class="k">if</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span> <span class="o">and</span> <span class="nx">starts</span> <span class="nx">str</span><span class="p">,</span> <span class="s1">&#39;\\&#39;</span><span class="p">,</span> <span class="nx">i</span>
+        <span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span>
+      <span class="k">else</span>
+        <span class="k">for</span> <span class="nx">pair</span> <span class="k">in</span> <span class="nx">delimited</span>
+          <span class="p">[</span><span class="nx">open</span><span class="p">,</span> <span class="nx">close</span><span class="p">]</span><span class="o">:</span> <span class="nx">pair</span>
+          <span class="k">if</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span> <span class="o">and</span> <span class="nx">starts</span><span class="p">(</span><span class="nx">str</span><span class="p">,</span> <span class="nx">close</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">and</span> <span class="nx">levels</span><span class="p">[</span><span class="nx">levels</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span> <span class="o">is</span> <span class="nx">pair</span>
+            <span class="nx">levels</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
+            <span class="nv">i: </span><span class="o">+</span> <span class="nx">close</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
+            <span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span>
+            <span class="k">break</span>
+          <span class="k">else</span> <span class="k">if</span> <span class="nx">starts</span> <span class="nx">str</span><span class="p">,</span> <span class="nx">open</span><span class="p">,</span> <span class="nx">i</span>
+            <span class="nx">levels</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">pair</span><span class="p">)</span>
+            <span class="nv">i: </span><span class="o">+</span> <span class="nx">open</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
+            <span class="k">break</span>
+      <span class="k">break</span> <span class="k">if</span> <span class="o">not</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span> <span class="o">or</span> <span class="nx">slash</span> <span class="o">and</span> <span class="nx">starts</span> <span class="nx">str</span><span class="p">,</span> <span class="s1">&#39;\n&#39;</span><span class="p">,</span> <span class="nx">i</span>
+      <span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span>
+    <span class="k">if</span> <span class="nx">levels</span><span class="p">.</span><span class="nx">length</span>
+      <span class="k">return</span> <span class="kc">false</span> <span class="k">if</span> <span class="nx">slash</span>
+      <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;SyntaxError: Unterminated ${levels.pop()[0]} starting on line ${@line + 1}&quot;</span>
+    <span class="k">if</span> <span class="o">not</span> <span class="nx">i</span> <span class="k">then</span> <span class="kc">false</span> <span class="k">else</span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-32">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-32">#</a>               </div>               <p>Expand variables and expressions inside double-quoted strings using
 <a href="http://wiki.ecmascript.org/doku.php?id=strawman:string_interpolation">ECMA Harmony's interpolation syntax</a>
 for substitution of bare variables as well as arbitrary expressions.</p>
 
@@ -254,13 +297,13 @@ for substitution of bare variables as well as arbitrary expressions.</p>
 
 <p>If it encounters an interpolation, this method will recursively create a
 new Lexer, tokenize the interpolated contents, and merge them into the
-token stream.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">interpolate_string: </span><span class="p">(</span><span class="nx">str</span><span class="p">,</span> <span class="nx">escape_quotes</span><span class="p">)</span> <span class="o">-&gt;</span>
+token stream.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">interpolateString: </span><span class="p">(</span><span class="nx">str</span><span class="p">,</span> <span class="nx">escapeQuotes</span><span class="p">)</span> <span class="o">-&gt;</span>
     <span class="k">if</span> <span class="nx">str</span><span class="p">.</span><span class="nx">length</span> <span class="o">&lt;</span> <span class="mi">3</span> <span class="o">or</span> <span class="o">not</span> <span class="nx">starts</span> <span class="nx">str</span><span class="p">,</span> <span class="s1">&#39;&quot;&#39;</span>
-      <span class="err">@</span><span class="nx">token</span> <span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="nx">str</span>
+      <span class="nx">@token</span> <span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="nx">str</span>
     <span class="k">else</span>
-      <span class="nv">lexer: </span>   <span class="k">new</span> <span class="nx">Lexer</span><span class="p">()</span>
+      <span class="nv">lexer: </span>   <span class="k">new</span> <span class="nx">Lexer</span>
       <span class="nv">tokens: </span>  <span class="p">[]</span>
-      <span class="nv">quote: </span>   <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
+      <span class="nv">quote: </span>   <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
       <span class="p">[</span><span class="nx">i</span><span class="p">,</span> <span class="nx">pi</span><span class="p">]</span><span class="o">:</span>  <span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">]</span>
       <span class="k">while</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">str</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
         <span class="k">if</span> <span class="nx">starts</span> <span class="nx">str</span><span class="p">,</span> <span class="s1">&#39;\\&#39;</span><span class="p">,</span> <span class="nx">i</span>
@@ -272,11 +315,13 @@ token stream.</p>             </td>             <td class="code">
           <span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="nx">interp</span><span class="p">]</span>
           <span class="nv">i: </span><span class="o">+</span> <span class="nx">group</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
           <span class="nv">pi: </span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span>
-        <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nv">expr: </span><span class="nx">balanced_string</span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">i</span><span class="p">),</span> <span class="p">[[</span><span class="s1">&#39;${&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">]])</span>
+        <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nv">expr: </span><span class="nx">@balancedString</span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">i</span><span class="p">),</span> <span class="p">[[</span><span class="s1">&#39;${&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">]])</span>
           <span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s2">&quot;$quote${ str.substring(pi, i) }$quote&quot;</span><span class="p">]</span> <span class="k">if</span> <span class="nx">pi</span> <span class="o">&lt;</span> <span class="nx">i</span>
           <span class="nv">inner: </span><span class="nx">expr</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="nx">expr</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
           <span class="k">if</span> <span class="nx">inner</span><span class="p">.</span><span class="nx">length</span>
-            <span class="nv">nested: </span><span class="nx">lexer</span><span class="p">.</span><span class="nx">tokenize</span> <span class="s2">&quot;($inner)&quot;</span><span class="p">,</span> <span class="p">{</span><span class="nv">rewrite: </span><span class="kc">no</span><span class="p">,</span> <span class="nv">line: </span><span class="err">@</span><span class="nx">line</span><span class="p">}</span>
+            <span class="nv">inner: </span><span class="nx">inner</span><span class="p">.</span><span class="nx">replace</span> <span class="k">new</span> <span class="nb">RegExp</span><span class="p">(</span><span class="s1">&#39;\\\\&#39;</span> <span class="o">+</span> <span class="nx">quote</span><span class="p">,</span> <span class="s1">&#39;g&#39;</span><span class="p">),</span> <span class="nx">quote</span>
+            <span class="nv">nested: </span><span class="nx">lexer</span><span class="p">.</span><span class="nx">tokenize</span> <span class="s2">&quot;($inner)&quot;</span><span class="p">,</span> <span class="p">{</span><span class="nv">line: </span><span class="nx">@line</span><span class="p">}</span>
+            <span class="p">(</span><span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;)&#39;</span><span class="p">)</span> <span class="k">for</span> <span class="nx">tok</span><span class="p">,</span> <span class="nx">idx</span> <span class="k">in</span> <span class="nx">nested</span> <span class="k">when</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;CALL_END&#39;</span>
             <span class="nx">nested</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
             <span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;TOKENS&#39;</span><span class="p">,</span> <span class="nx">nested</span><span class="p">]</span>
           <span class="k">else</span>
@@ -286,31 +331,34 @@ token stream.</p>             </td>             <td class="code">
         <span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span>
       <span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s2">&quot;$quote${ str.substring(pi, i) }$quote&quot;</span><span class="p">]</span> <span class="k">if</span> <span class="nx">pi</span> <span class="o">&lt;</span> <span class="nx">i</span> <span class="o">and</span> <span class="nx">pi</span> <span class="o">&lt;</span> <span class="nx">str</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
       <span class="nx">tokens</span><span class="p">.</span><span class="nx">unshift</span> <span class="p">[</span><span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s1">&#39;&quot;&quot;&#39;</span><span class="p">]</span> <span class="nx">unless</span> <span class="nx">tokens</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;STRING&#39;</span>
+      <span class="nv">interpolated: </span><span class="nx">tokens</span><span class="p">.</span><span class="nx">length</span> <span class="o">&gt;</span> <span class="mi">1</span>
+      <span class="nx">@token</span> <span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="s1">&#39;(&#39;</span> <span class="k">if</span> <span class="nx">interpolated</span>
       <span class="k">for</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">i</span> <span class="k">in</span> <span class="nx">tokens</span>
         <span class="p">[</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span><span class="p">]</span><span class="o">:</span> <span class="nx">token</span>
         <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;TOKENS&#39;</span>
-          <span class="err">@</span><span class="nv">tokens: </span><span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">value</span>
-        <span class="k">else</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;STRING&#39;</span> <span class="o">and</span> <span class="nx">escape_quotes</span>
+          <span class="vi">@tokens: </span><span class="nx">@tokens</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">value</span>
+        <span class="k">else</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;STRING&#39;</span> <span class="o">and</span> <span class="nx">escapeQuotes</span>
           <span class="nv">escaped: </span><span class="nx">value</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="nx">value</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/&quot;/g</span><span class="p">,</span> <span class="s1">&#39;\\&quot;&#39;</span><span class="p">)</span>
-          <span class="err">@</span><span class="nx">token</span> <span class="nx">tag</span><span class="p">,</span> <span class="s2">&quot;\&quot;$escaped\&quot;&quot;</span>
+          <span class="nx">@token</span> <span class="nx">tag</span><span class="p">,</span> <span class="s2">&quot;\&quot;$escaped\&quot;&quot;</span>
         <span class="k">else</span>
-          <span class="err">@</span><span class="nx">token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span>
-        <span class="err">@</span><span class="nx">token</span> <span class="s1">&#39;+&#39;</span><span class="p">,</span> <span class="s1">&#39;+&#39;</span> <span class="k">if</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">tokens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
+          <span class="nx">@token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span>
+        <span class="nx">@token</span> <span class="s1">&#39;+&#39;</span><span class="p">,</span> <span class="s1">&#39;+&#39;</span> <span class="k">if</span> <span class="nx">i</span> <span class="o">&lt;</span> <span class="nx">tokens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
+      <span class="nx">@token</span> <span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span> <span class="k">if</span> <span class="nx">interpolated</span>
       <span class="nx">tokens</span></pre></div>             </td>           </tr>                               <tr id="section-33">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-33">#</a>               </div>               <h2>Helpers</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-34">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-34">#</a>               </div>               <p>Add a token to the results, taking note of the line number.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">token: </span><span class="p">(</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span><span class="p">([</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span><span class="p">,</span> <span class="err">@</span><span class="nx">line</span><span class="p">])</span></pre></div>             </td>           </tr>                               <tr id="section-35">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-35">#</a>               </div>               <p>Peek at a tag in the current token stream.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">tag: </span><span class="p">(</span><span class="nx">index</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="nx">unless</span> <span class="nv">tok: </span><span class="err">@</span><span class="nx">prev</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span>
-    <span class="k">return</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="nx">tag</span> <span class="k">if</span> <span class="nx">tag</span><span class="o">?</span>
+    <span class="nx">@tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span><span class="p">,</span> <span class="nx">@line</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-35">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-35">#</a>               </div>               <p>Peek at a tag in the current token stream.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">tag: </span><span class="p">(</span><span class="nx">index</span><span class="p">,</span> <span class="nx">newTag</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="nx">unless</span> <span class="nv">tok: </span><span class="nx">@prev</span> <span class="nx">index</span>
+    <span class="k">return</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">:</span> <span class="nx">newTag</span> <span class="k">if</span> <span class="nx">newTag</span><span class="o">?</span>
     <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-36">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-36">#</a>               </div>               <p>Peek at a value in the current token stream.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">value: </span><span class="p">(</span><span class="nx">index</span><span class="p">,</span> <span class="nx">val</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="nx">unless</span> <span class="nv">tok: </span><span class="err">@</span><span class="nx">prev</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span>
+    <span class="k">return</span> <span class="nx">unless</span> <span class="nv">tok: </span><span class="nx">@prev</span> <span class="nx">index</span>
     <span class="k">return</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="nx">val</span> <span class="k">if</span> <span class="nx">val</span><span class="o">?</span>
     <span class="nx">tok</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-37">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-37">#</a>               </div>               <p>Peek at a previous token, entire.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">prev: </span><span class="p">(</span><span class="nx">index</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="p">(</span><span class="nx">index</span> <span class="o">or</span> <span class="mi">1</span><span class="p">)]</span></pre></div>             </td>           </tr>                               <tr id="section-38">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-38">#</a>               </div>               <p>Attempt to match a string against the current chunk, returning the indexed
+    <span class="nx">@tokens</span><span class="p">[</span><span class="nx">@tokens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="p">(</span><span class="nx">index</span> <span class="o">or</span> <span class="mi">1</span><span class="p">)]</span></pre></div>             </td>           </tr>                               <tr id="section-38">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-38">#</a>               </div>               <p>Attempt to match a string against the current chunk, returning the indexed
 match if successful, and <code>false</code> otherwise.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">match: </span><span class="p">(</span><span class="nx">regex</span><span class="p">,</span> <span class="nx">index</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">m: </span><span class="err">@</span><span class="nx">chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">regex</span><span class="p">)</span>
+    <span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">m: </span><span class="nx">@chunk</span><span class="p">.</span><span class="nx">match</span> <span class="nx">regex</span>
     <span class="k">if</span> <span class="nx">m</span> <span class="k">then</span> <span class="nx">m</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span> <span class="k">else</span> <span class="kc">false</span></pre></div>             </td>           </tr>                               <tr id="section-39">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-39">#</a>               </div>               <p>Are we in the midst of an unfinished expression?</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">unfinished: </span><span class="o">-&gt;</span>
-    <span class="nv">prev: </span><span class="err">@</span><span class="nx">prev</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
-    <span class="err">@</span><span class="nx">value</span><span class="p">()</span> <span class="o">and</span> <span class="err">@</span><span class="nx">value</span><span class="p">().</span><span class="nx">match</span> <span class="o">and</span> <span class="err">@</span><span class="nx">value</span><span class="p">().</span><span class="nx">match</span><span class="p">(</span><span class="nx">NO_NEWLINE</span><span class="p">)</span> <span class="o">and</span>
-      <span class="nx">prev</span> <span class="o">and</span> <span class="p">(</span><span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;.&#39;</span><span class="p">)</span> <span class="o">and</span> <span class="o">not</span> <span class="err">@</span><span class="nx">value</span><span class="p">().</span><span class="nx">match</span><span class="p">(</span><span class="nx">CODE</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-40">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-40">#</a>               </div>               <p>There are no exensions to the core lexer by default.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">Lexer.extensions: </span><span class="p">[]</span></pre></div>             </td>           </tr>                               <tr id="section-41">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-41">#</a>               </div>               <h2>Constants</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-42">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-42">#</a>               </div>               <p>Keywords that CoffeeScript shares in common with JavaScript.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">JS_KEYWORDS: </span><span class="p">[</span>
+    <span class="nv">prev: </span><span class="nx">@prev</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
+    <span class="nx">@value</span><span class="p">()</span> <span class="o">and</span> <span class="nx">@value</span><span class="p">().</span><span class="nx">match</span> <span class="o">and</span> <span class="nx">@value</span><span class="p">().</span><span class="nx">match</span><span class="p">(</span><span class="nx">NO_NEWLINE</span><span class="p">)</span> <span class="o">and</span>
+      <span class="nx">prev</span> <span class="o">and</span> <span class="p">(</span><span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;.&#39;</span><span class="p">)</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">@value</span><span class="p">().</span><span class="nx">match</span><span class="p">(</span><span class="nx">CODE</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-40">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-40">#</a>               </div>               <h2>Constants</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-41">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-41">#</a>               </div>               <p>Keywords that CoffeeScript shares in common with JavaScript.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">JS_KEYWORDS: </span><span class="p">[</span>
   <span class="s2">&quot;if&quot;</span><span class="p">,</span> <span class="s2">&quot;else&quot;</span><span class="p">,</span>
   <span class="s2">&quot;true&quot;</span><span class="p">,</span> <span class="s2">&quot;false&quot;</span><span class="p">,</span>
   <span class="s2">&quot;new&quot;</span><span class="p">,</span> <span class="s2">&quot;return&quot;</span><span class="p">,</span>
@@ -318,53 +366,52 @@ match if successful, and <code>false</code> otherwise.</p>             </td>
   <span class="s2">&quot;break&quot;</span><span class="p">,</span> <span class="s2">&quot;continue&quot;</span><span class="p">,</span>
   <span class="s2">&quot;for&quot;</span><span class="p">,</span> <span class="s2">&quot;in&quot;</span><span class="p">,</span> <span class="s2">&quot;while&quot;</span><span class="p">,</span>
   <span class="s2">&quot;delete&quot;</span><span class="p">,</span> <span class="s2">&quot;instanceof&quot;</span><span class="p">,</span> <span class="s2">&quot;typeof&quot;</span><span class="p">,</span>
-  <span class="s2">&quot;switch&quot;</span><span class="p">,</span> <span class="s2">&quot;super&quot;</span><span class="p">,</span> <span class="s2">&quot;extends&quot;</span><span class="p">,</span> <span class="s2">&quot;class&quot;</span>
-<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-43">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-43">#</a>               </div>               <p>CoffeeScript-only keywords, which we're more relaxed about allowing. They can't
+  <span class="s2">&quot;switch&quot;</span><span class="p">,</span> <span class="s2">&quot;super&quot;</span><span class="p">,</span> <span class="s2">&quot;extends&quot;</span><span class="p">,</span> <span class="s2">&quot;class&quot;</span><span class="p">,</span>
+  <span class="s2">&quot;this&quot;</span><span class="p">,</span> <span class="s2">&quot;null&quot;</span>
+<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-42">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-42">#</a>               </div>               <p>CoffeeScript-only keywords, which we're more relaxed about allowing. They can't
 be used standalone, but you can reference them as an attached property.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">COFFEE_ALIASES: </span> <span class="p">[</span><span class="s2">&quot;and&quot;</span><span class="p">,</span> <span class="s2">&quot;or&quot;</span><span class="p">,</span> <span class="s2">&quot;is&quot;</span><span class="p">,</span> <span class="s2">&quot;isnt&quot;</span><span class="p">,</span> <span class="s2">&quot;not&quot;</span><span class="p">]</span>
 <span class="nv">COFFEE_KEYWORDS: </span><span class="nx">COFFEE_ALIASES</span><span class="p">.</span><span class="nx">concat</span> <span class="p">[</span>
-  <span class="s2">&quot;then&quot;</span><span class="p">,</span> <span class="s2">&quot;unless&quot;</span><span class="p">,</span>
+  <span class="s2">&quot;then&quot;</span><span class="p">,</span> <span class="s2">&quot;unless&quot;</span><span class="p">,</span> <span class="s2">&quot;until&quot;</span><span class="p">,</span> <span class="s2">&quot;loop&quot;</span><span class="p">,</span>
   <span class="s2">&quot;yes&quot;</span><span class="p">,</span> <span class="s2">&quot;no&quot;</span><span class="p">,</span> <span class="s2">&quot;on&quot;</span><span class="p">,</span> <span class="s2">&quot;off&quot;</span><span class="p">,</span>
   <span class="s2">&quot;of&quot;</span><span class="p">,</span> <span class="s2">&quot;by&quot;</span><span class="p">,</span> <span class="s2">&quot;where&quot;</span><span class="p">,</span> <span class="s2">&quot;when&quot;</span>
-<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-44">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-44">#</a>               </div>               <p>The combined list of keywords is the superset that gets passed verbatim to
-the parser.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">KEYWORDS: </span><span class="nx">JS_KEYWORDS</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">COFFEE_KEYWORDS</span></pre></div>             </td>           </tr>                               <tr id="section-45">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-45">#</a>               </div>               <p>The list of keywords that are reserved by JavaScript, but not used, or are
+<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-43">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-43">#</a>               </div>               <p>The list of keywords that are reserved by JavaScript, but not used, or are
 used by CoffeeScript internally. We throw an error when these are encountered,
 to avoid having a JavaScript error at runtime.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">RESERVED: </span><span class="p">[</span>
   <span class="s2">&quot;case&quot;</span><span class="p">,</span> <span class="s2">&quot;default&quot;</span><span class="p">,</span> <span class="s2">&quot;do&quot;</span><span class="p">,</span> <span class="s2">&quot;function&quot;</span><span class="p">,</span> <span class="s2">&quot;var&quot;</span><span class="p">,</span> <span class="s2">&quot;void&quot;</span><span class="p">,</span> <span class="s2">&quot;with&quot;</span>
-  <span class="s2">&quot;const&quot;</span><span class="p">,</span> <span class="s2">&quot;let&quot;</span><span class="p">,</span> <span class="s2">&quot;debugger&quot;</span><span class="p">,</span> <span class="s2">&quot;enum&quot;</span><span class="p">,</span> <span class="s2">&quot;export&quot;</span><span class="p">,</span> <span class="s2">&quot;import&quot;</span><span class="p">,</span> <span class="s2">&quot;native&quot;</span><span class="p">,</span>
-  <span class="s2">&quot;__extends&quot;</span><span class="p">,</span> <span class="s2">&quot;__hasProp&quot;</span>
-<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-46">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-46">#</a>               </div>               <p>The superset of both JavaScript keywords and reserved words, none of which may
-be used as identifiers or properties.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">JS_FORBIDDEN: </span><span class="nx">JS_KEYWORDS</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">RESERVED</span></pre></div>             </td>           </tr>                               <tr id="section-47">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-47">#</a>               </div>               <p>Token matching regexes.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nx">IDENTIFIER</span>    <span class="o">:</span> <span class="sr">/^([a-zA-Z\$_](\w|\$)*)/</span>
-<span class="nx">NUMBER</span>        <span class="o">:</span> <span class="sr">/^(\b((0(x|X)[0-9a-fA-F]+)|([0-9]+(\.[0-9]+)?(e[+\-]?[0-9]+)?)))\b/i</span>
-<span class="nx">HEREDOC</span>       <span class="o">:</span> <span class="sr">/^(&quot;{6}|&#39;{6}|&quot;{3}\n?([\s\S]*?)\n?([ \t]*)&quot;{3}|&#39;{3}\n?([\s\S]*?)\n?([ \t]*)&#39;{3})/</span>
-<span class="nx">INTERPOLATION</span> <span class="o">:</span> <span class="sr">/^\$([a-zA-Z_@]\w*(\.\w+)*)/</span>
-<span class="nx">OPERATOR</span>      <span class="o">:</span> <span class="sr">/^([+\*&amp;|\/\-%=&lt;&gt;:!?]+)([ \t]*)/</span>
-<span class="nx">WHITESPACE</span>    <span class="o">:</span> <span class="sr">/^([ \t]+)/</span>
-<span class="nx">COMMENT</span>       <span class="o">:</span> <span class="sr">/^(((\n?[ \t]*)?#[^\n]*)+)/</span>
-<span class="nx">CODE</span>          <span class="o">:</span> <span class="sr">/^((-|=)&gt;)/</span>
-<span class="nx">MULTI_DENT</span>    <span class="o">:</span> <span class="sr">/^((\n([ \t]*))+)(\.)?/</span>
-<span class="nx">LAST_DENTS</span>    <span class="o">:</span> <span class="sr">/\n([ \t]*)/g</span>
-<span class="nx">LAST_DENT</span>     <span class="o">:</span> <span class="sr">/\n([ \t]*)/</span>
-<span class="nx">ASSIGNMENT</span>    <span class="o">:</span> <span class="sr">/^(:|=)$/</span></pre></div>             </td>           </tr>                               <tr id="section-48">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-48">#</a>               </div>               <p>Regex-matching-regexes.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nx">REGEX_START</span>        <span class="o">:</span> <span class="sr">/^\/[^\/ ]/</span>
+  <span class="s2">&quot;const&quot;</span><span class="p">,</span> <span class="s2">&quot;let&quot;</span><span class="p">,</span> <span class="s2">&quot;enum&quot;</span><span class="p">,</span> <span class="s2">&quot;export&quot;</span><span class="p">,</span> <span class="s2">&quot;import&quot;</span><span class="p">,</span> <span class="s2">&quot;native&quot;</span>
+<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-44">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-44">#</a>               </div>               <p>The superset of both JavaScript keywords and reserved words, none of which may
+be used as identifiers or properties.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">JS_FORBIDDEN: </span><span class="nx">JS_KEYWORDS</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">RESERVED</span></pre></div>             </td>           </tr>                               <tr id="section-45">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-45">#</a>               </div>               <p>Token matching regexes.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">IDENTIFIER    : </span><span class="sr">/^([a-zA-Z\$_](\w|\$)*)/</span>
+<span class="nv">NUMBER        : </span><span class="sr">/^(((\b0(x|X)[0-9a-fA-F]+)|((\b[0-9]+(\.[0-9]+)?|\.[0-9]+)(e[+\-]?[0-9]+)?)))\b/i</span>
+<span class="nv">HEREDOC       : </span><span class="sr">/^(&quot;{6}|&#39;{6}|&quot;{3}\n?([\s\S]*?)\n?([ \t]*)&quot;{3}|&#39;{3}\n?([\s\S]*?)\n?([ \t]*)&#39;{3})/</span>
+<span class="nv">INTERPOLATION : </span><span class="sr">/^\$([a-zA-Z_@]\w*(\.\w+)*)/</span>
+<span class="nv">OPERATOR      : </span><span class="sr">/^(-[\-=&gt;]?|\+[+=]?|[*&amp;|\/%=&lt;&gt;:!?]+)([ \t]*)/</span>
+<span class="nv">WHITESPACE    : </span><span class="sr">/^([ \t]+)/</span>
+<span class="nv">COMMENT       : </span><span class="sr">/^(\s*#{3}(?!#)[ \t]*\n+([\s\S]*?)[ \t]*\n+[ \t]*#{3}|(\s*#(?!##[^#])[^\n]*)+)/</span>
+<span class="nv">CODE          : </span><span class="sr">/^((-|=)&gt;)/</span>
+<span class="nv">MULTI_DENT    : </span><span class="sr">/^((\n([ \t]*))+)(\.)?/</span>
+<span class="nv">LAST_DENTS    : </span><span class="sr">/\n([ \t]*)/g</span>
+<span class="nv">LAST_DENT     : </span><span class="sr">/\n([ \t]*)/</span>
+<span class="nv">ASSIGNMENT    : </span><span class="sr">/^[:=]$/</span></pre></div>             </td>           </tr>                               <tr id="section-46">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-46">#</a>               </div>               <p>Regex-matching-regexes.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">REGEX_START        : </span><span class="sr">/^\/[^\/ ]/</span>
 <span class="nv">REGEX_INTERPOLATION: </span><span class="sr">/([^\\]\$[a-zA-Z_@]|[^\\]\$\{.*[^\\]\})/</span>
-<span class="nx">REGEX_FLAGS</span>        <span class="o">:</span> <span class="sr">/^[imgy]{0,4}/</span>
-<span class="nx">REGEX_ESCAPE</span>       <span class="o">:</span> <span class="sr">/\\[^\$]/g</span></pre></div>             </td>           </tr>                               <tr id="section-49">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-49">#</a>               </div>               <p>Token cleaning regexes.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nx">JS_CLEANER</span>      <span class="o">:</span> <span class="sr">/(^`|`$)/g</span>
-<span class="nx">MULTILINER</span>      <span class="o">:</span> <span class="sr">/\n/g</span>
-<span class="nx">STRING_NEWLINES</span> <span class="o">:</span> <span class="sr">/\n[ \t]*/g</span>
-<span class="nx">COMMENT_CLEANER</span> <span class="o">:</span> <span class="sr">/(^[ \t]*#|\n[ \t]*$)/mg</span>
-<span class="nx">NO_NEWLINE</span>      <span class="o">:</span> <span class="sr">/^([+\*&amp;|\/\-%=&lt;&gt;:!.\\][&lt;&gt;=&amp;|]*|and|or|is|isnt|not|delete|typeof|instanceof)$/</span>
-<span class="nx">HEREDOC_INDENT</span>  <span class="o">:</span> <span class="sr">/^[ \t]+/mg</span></pre></div>             </td>           </tr>                               <tr id="section-50">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-50">#</a>               </div>               <p>Tokens which a regular expression will never immediately follow, but which
+<span class="nv">REGEX_END          : </span><span class="sr">/^(([imgy]{1,4})\b|\W|$)/</span>
+<span class="nv">REGEX_ESCAPE       : </span><span class="sr">/\\[^\$]/g</span></pre></div>             </td>           </tr>                               <tr id="section-47">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-47">#</a>               </div>               <p>Token cleaning regexes.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">JS_CLEANER      : </span><span class="sr">/(^`|`$)/g</span>
+<span class="nv">MULTILINER      : </span><span class="sr">/\n/g</span>
+<span class="nv">STRING_NEWLINES : </span><span class="sr">/\n[ \t]*/g</span>
+<span class="nv">NO_NEWLINE      : </span><span class="sr">/^([+\*&amp;|\/\-%=&lt;&gt;:!.\\][&lt;&gt;=&amp;|]*|and|or|is|isnt|not|delete|typeof|instanceof)$/</span>
+<span class="nv">HEREDOC_INDENT  : </span><span class="sr">/(\n+([ \t]*)|^([ \t]+))/g</span>
+<span class="nv">ASSIGNED        : </span><span class="sr">/^([a-zA-Z\$_]\w*[ \t]*?[:=][^=])/</span>
+<span class="nv">NEXT_CHARACTER  : </span><span class="sr">/^\s*(\S)/</span></pre></div>             </td>           </tr>                               <tr id="section-48">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-48">#</a>               </div>               <p>Tokens which a regular expression will never immediately follow, but which
 a division operator might.</p>
 
-<p>See: <a href='http://www.mozilla.org/js/language/js20-2002-04/rationale/syntax.html#regular-expressions'>http://www.mozilla.org/js/language/js20-2002-04/rationale/syntax.html#regular-expressions</a></p>
+<p>See: http://www.mozilla.org/js/language/js20-2002-04/rationale/syntax.html#regular-expressions</p>
 
 <p>Our list is shorter, due to sans-parentheses method calls.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">NOT_REGEX: </span><span class="p">[</span>
-  <span class="s1">&#39;NUMBER&#39;</span><span class="p">,</span> <span class="s1">&#39;REGEX&#39;</span><span class="p">,</span> <span class="s1">&#39;++&#39;</span><span class="p">,</span> <span class="s1">&#39;--&#39;</span><span class="p">,</span> <span class="s1">&#39;FALSE&#39;</span><span class="p">,</span> <span class="s1">&#39;NULL&#39;</span><span class="p">,</span> <span class="s1">&#39;TRUE&#39;</span>
-<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-51">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-51">#</a>               </div>               <p>Tokens which could legitimately be invoked or indexed. A opening
+  <span class="s1">&#39;NUMBER&#39;</span><span class="p">,</span> <span class="s1">&#39;REGEX&#39;</span><span class="p">,</span> <span class="s1">&#39;++&#39;</span><span class="p">,</span> <span class="s1">&#39;--&#39;</span><span class="p">,</span> <span class="s1">&#39;FALSE&#39;</span><span class="p">,</span> <span class="s1">&#39;NULL&#39;</span><span class="p">,</span> <span class="s1">&#39;TRUE&#39;</span><span class="p">,</span> <span class="s1">&#39;]&#39;</span>
+<span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-49">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-49">#</a>               </div>               <p>Tokens which could legitimately be invoked or indexed. A opening
 parentheses or bracket following these tokens will be recorded as the start
-of a function invocation or indexing operation.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">CALLABLE: </span><span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="s1">&#39;SUPER&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="s1">&#39;]&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">,</span> <span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s1">&#39;@&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-52">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-52">#</a>               </div>               <p>Tokens that indicate an access -- keywords immediately following will be
-treated as identifiers.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">ACCESSORS: </span><span class="p">[</span><span class="s1">&#39;PROPERTY_ACCESS&#39;</span><span class="p">,</span> <span class="s1">&#39;PROTOTYPE_ACCESS&#39;</span><span class="p">,</span> <span class="s1">&#39;SOAK_ACCESS&#39;</span><span class="p">,</span> <span class="s1">&#39;@&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-53">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-53">#</a>               </div>               <p>Tokens that, when immediately preceding a <code>WHEN</code>, indicate that the <code>WHEN</code>
+of a function invocation or indexing operation.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">CALLABLE: </span><span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="s1">&#39;SUPER&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="s1">&#39;]&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">,</span> <span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s1">&#39;@&#39;</span><span class="p">,</span> <span class="s1">&#39;THIS&#39;</span><span class="p">,</span> <span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="s1">&#39;::&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-50">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-50">#</a>               </div>               <p>Tokens that, when immediately preceding a <code>WHEN</code>, indicate that the <code>WHEN</code>
 occurs at the start of a line. We disambiguate these from trailing whens to
-avoid an ambiguity in the grammar.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">LINE_BREAK: </span><span class="p">[</span><span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;TERMINATOR&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-54">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-54">#</a>               </div>               <p>Half-assignments...</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">HALF_ASSIGNMENTS: </span><span class="p">[</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="s1">&#39;+&#39;</span><span class="p">,</span> <span class="s1">&#39;/&#39;</span><span class="p">,</span> <span class="s1">&#39;*&#39;</span><span class="p">,</span> <span class="s1">&#39;%&#39;</span><span class="p">,</span> <span class="s1">&#39;||&#39;</span><span class="p">,</span> <span class="s1">&#39;&amp;&amp;&#39;</span><span class="p">,</span> <span class="s1">&#39;?&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-55">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-55">#</a>               </div>               <p>Conversions from CoffeeScript operators into JavaScript ones.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">CONVERSIONS: </span><span class="p">{</span>
+avoid an ambiguity in the grammar.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">LINE_BREAK: </span><span class="p">[</span><span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;TERMINATOR&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-51">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-51">#</a>               </div>               <p>Half-assignments...</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">HALF_ASSIGNMENTS: </span><span class="p">[</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="s1">&#39;+&#39;</span><span class="p">,</span> <span class="s1">&#39;/&#39;</span><span class="p">,</span> <span class="s1">&#39;*&#39;</span><span class="p">,</span> <span class="s1">&#39;%&#39;</span><span class="p">,</span> <span class="s1">&#39;||&#39;</span><span class="p">,</span> <span class="s1">&#39;&amp;&amp;&#39;</span><span class="p">,</span> <span class="s1">&#39;?&#39;</span><span class="p">,</span> <span class="s1">&#39;OP?&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-52">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-52">#</a>               </div>               <p>Conversions from CoffeeScript operators into JavaScript ones.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">CONVERSIONS: </span><span class="p">{</span>
   <span class="s1">&#39;and&#39;</span><span class="o">:</span>  <span class="s1">&#39;&amp;&amp;&#39;</span>
   <span class="s1">&#39;or&#39;</span><span class="o">:</span>   <span class="s1">&#39;||&#39;</span>
   <span class="s1">&#39;is&#39;</span><span class="o">:</span>   <span class="s1">&#39;==&#39;</span>

documentation/docs/optparse.html

@@ -1,60 +1,65 @@
-<!DOCTYPE html>  <html> <head>   <title>optparse.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               optparse.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>A simple <strong>OptionParser</strong> class to parse option flags from the command-line.
+<!DOCTYPE html>  <html> <head>   <title>optparse.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               optparse.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>A simple <strong>OptionParser</strong> class to parse option flags from the command-line.
 Use it like so:</p>
 
-<pre><code>parser:  new OptionParser switches, help_banner
+<pre><code>parser:  new OptionParser switches, helpBanner
 options: parser.parse process.argv
-</code></pre>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.OptionParser: </span><span class="nx">class</span> <span class="nx">OptionParser</span></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-2">#</a>               </div>               <p>Initialize with a list of valid options, in the form:</p>
+</code></pre>
+
+<p>The first non-option is considered to be the start of the file (and file
+option) list, and all subsequent arguments are left unparsed.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.OptionParser: </span><span class="nx">class</span> <span class="nx">OptionParser</span></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-2">#</a>               </div>               <p>Initialize with a list of valid options, in the form:</p>
 
 <pre><code>[short-flag, long-flag, description]
 </code></pre>
 
 <p>Along with an an optional banner for the usage help.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">constructor: </span><span class="p">(</span><span class="nx">rules</span><span class="p">,</span> <span class="nx">banner</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nv">banner: </span> <span class="nx">banner</span>
-    <span class="err">@</span><span class="nv">rules: </span>  <span class="nx">build_rules</span><span class="p">(</span><span class="nx">rules</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Parse the list of arguments, populating an <code>options</code> object with all of the
+    <span class="vi">@banner: </span> <span class="nx">banner</span>
+    <span class="vi">@rules: </span>  <span class="nx">buildRules</span><span class="p">(</span><span class="nx">rules</span><span class="p">)</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Parse the list of arguments, populating an <code>options</code> object with all of the
 specified options, and returning it. <code>options.arguments</code> will be an array
 containing the remaning non-option arguments. This is a simpler API than
 many option parsers that allow you to attach callback actions for every
 flag. Instead, you're responsible for interpreting the options object.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">parse: </span><span class="p">(</span><span class="nx">args</span><span class="p">)</span> <span class="o">-&gt;</span>
     <span class="nv">options: </span><span class="p">{</span><span class="nv">arguments: </span><span class="p">[]}</span>
-    <span class="nv">args: </span><span class="nx">normalize_arguments</span> <span class="nx">args</span>
-    <span class="k">while</span> <span class="nv">arg: </span><span class="nx">args</span><span class="p">.</span><span class="nx">shift</span><span class="p">()</span>
-      <span class="nv">is_option: </span><span class="o">!!</span><span class="p">(</span><span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)</span> <span class="o">or</span> <span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">SHORT_FLAG</span><span class="p">))</span>
-      <span class="nv">matched_rule: </span><span class="kc">no</span>
-      <span class="k">for</span> <span class="nx">rule</span> <span class="k">in</span> <span class="err">@</span><span class="nx">rules</span>
-        <span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">short_flag</span> <span class="o">is</span> <span class="nx">arg</span> <span class="o">or</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">long_flag</span> <span class="o">is</span> <span class="nx">arg</span>
-          <span class="nx">options</span><span class="p">[</span><span class="nx">rule</span><span class="p">.</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">has_argument</span> <span class="k">then</span> <span class="nx">args</span><span class="p">.</span><span class="nx">shift</span><span class="p">()</span> <span class="k">else</span> <span class="kc">true</span>
-          <span class="nv">matched_rule: </span><span class="kc">yes</span>
+    <span class="nv">args: </span><span class="nx">normalizeArguments</span> <span class="nx">args</span>
+    <span class="k">for</span> <span class="nx">arg</span><span class="p">,</span> <span class="nx">i</span> <span class="k">in</span> <span class="nx">args</span>
+      <span class="nv">isOption: </span><span class="o">!!</span><span class="p">(</span><span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)</span> <span class="o">or</span> <span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">SHORT_FLAG</span><span class="p">))</span>
+      <span class="nv">matchedRule: </span><span class="kc">no</span>
+      <span class="k">for</span> <span class="nx">rule</span> <span class="k">in</span> <span class="nx">@rules</span>
+        <span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="o">is</span> <span class="nx">arg</span> <span class="o">or</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">longFlag</span> <span class="o">is</span> <span class="nx">arg</span>
+          <span class="nx">options</span><span class="p">[</span><span class="nx">rule</span><span class="p">.</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">hasArgument</span> <span class="k">then</span> <span class="nx">args</span><span class="p">[</span><span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span><span class="p">]</span> <span class="k">else</span> <span class="kc">true</span>
+          <span class="nv">matchedRule: </span><span class="kc">yes</span>
           <span class="k">break</span>
-      <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;unrecognized option: $arg&quot;</span> <span class="k">if</span> <span class="nx">is_option</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">matched_rule</span>
-      <span class="nx">options</span><span class="p">.</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">push</span> <span class="nx">arg</span> <span class="nx">unless</span> <span class="nx">is_option</span>
+      <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;unrecognized option: $arg&quot;</span> <span class="k">if</span> <span class="nx">isOption</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">matchedRule</span>
+      <span class="k">if</span> <span class="o">not</span> <span class="nx">isOption</span>
+        <span class="nv">options.arguments: </span><span class="nx">args</span><span class="p">[</span><span class="nx">i</span><span class="p">...</span><span class="nx">args</span><span class="p">.</span><span class="nx">length</span><span class="p">]</span>
+        <span class="k">break</span>
     <span class="nx">options</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Return the help text for this <strong>OptionParser</strong>, listing and describing all
 of the valid options, for <code>--help</code> and such.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">help: </span><span class="o">-&gt;</span>
     <span class="nv">lines: </span><span class="p">[</span><span class="s1">&#39;Available options:&#39;</span><span class="p">]</span>
-    <span class="nx">lines</span><span class="p">.</span><span class="nx">unshift</span> <span class="s2">&quot;$@banner\n&quot;</span> <span class="k">if</span> <span class="err">@</span><span class="nx">banner</span>
-    <span class="k">for</span> <span class="nx">rule</span> <span class="k">in</span> <span class="err">@</span><span class="nx">rules</span>
-      <span class="nv">spaces: </span>  <span class="mi">15</span> <span class="o">-</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">long_flag</span><span class="p">.</span><span class="nx">length</span>
+    <span class="nx">lines</span><span class="p">.</span><span class="nx">unshift</span> <span class="s2">&quot;$@banner\n&quot;</span> <span class="k">if</span> <span class="nx">@banner</span>
+    <span class="k">for</span> <span class="nx">rule</span> <span class="k">in</span> <span class="nx">@rules</span>
+      <span class="nv">spaces: </span>  <span class="mi">15</span> <span class="o">-</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">longFlag</span><span class="p">.</span><span class="nx">length</span>
       <span class="nv">spaces: </span>  <span class="k">if</span> <span class="nx">spaces</span> <span class="o">&gt;</span> <span class="mi">0</span> <span class="k">then</span> <span class="p">(</span><span class="s1">&#39; &#39;</span> <span class="k">for</span> <span class="nx">i</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">..</span><span class="nx">spaces</span><span class="p">]).</span><span class="nx">join</span><span class="p">(</span><span class="s1">&#39;&#39;</span><span class="p">)</span> <span class="k">else</span> <span class="s1">&#39;&#39;</span>
-      <span class="nv">let_part: </span><span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">short_flag</span> <span class="k">then</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">short_flag</span> <span class="o">+</span> <span class="s1">&#39;, &#39;</span> <span class="k">else</span> <span class="s1">&#39;    &#39;</span>
-      <span class="nx">lines</span><span class="p">.</span><span class="nx">push</span> <span class="s2">&quot;  $let_part${rule.long_flag}$spaces${rule.description}&quot;</span>
+      <span class="nv">letPart: </span><span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="k">then</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="o">+</span> <span class="s1">&#39;, &#39;</span> <span class="k">else</span> <span class="s1">&#39;    &#39;</span>
+      <span class="nx">lines</span><span class="p">.</span><span class="nx">push</span> <span class="s2">&quot;  $letPart$rule.longFlag$spaces$rule.description&quot;</span>
     <span class="s2">&quot;\n${ lines.join(&#39;\n&#39;) }\n&quot;</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <h2>Helpers</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Regex matchers for option flags.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">LONG_FLAG: </span> <span class="sr">/^(--\w[\w\-]+)/</span>
 <span class="nv">SHORT_FLAG: </span><span class="sr">/^(-\w)/</span>
 <span class="nv">MULTI_FLAG: </span><span class="sr">/^-(\w{2,})/</span>
 <span class="nv">OPTIONAL: </span>  <span class="sr">/\[(.+)\]/</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>Build and return the list of option rules. If the optional <em>short-flag</em> is
-unspecified, leave it out by padding with <code>null</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">build_rules: </span><span class="p">(</span><span class="nx">rules</span><span class="p">)</span> <span class="o">-&gt;</span>
+unspecified, leave it out by padding with <code>null</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">buildRules: </span><span class="p">(</span><span class="nx">rules</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="k">for</span> <span class="nx">tuple</span> <span class="k">in</span> <span class="nx">rules</span>
     <span class="nx">tuple</span><span class="p">.</span><span class="nx">unshift</span> <span class="kc">null</span> <span class="k">if</span> <span class="nx">tuple</span><span class="p">.</span><span class="nx">length</span> <span class="o">&lt;</span> <span class="mi">3</span>
-    <span class="nx">build_rule</span> <span class="nx">tuple</span><span class="p">...</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Build a rule from a <code>-o</code> short flag, a <code>--output [DIR]</code> long flag, and the
-description of what the option does.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">build_rule: </span><span class="p">(</span><span class="nx">short_flag</span><span class="p">,</span> <span class="nx">long_flag</span><span class="p">,</span> <span class="nx">description</span><span class="p">)</span> <span class="o">-&gt;</span>
-  <span class="nv">match: </span>     <span class="nx">long_flag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">OPTIONAL</span><span class="p">)</span>
-  <span class="nv">long_flag: </span> <span class="nx">long_flag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
+    <span class="nx">buildRule</span> <span class="nx">tuple</span><span class="p">...</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Build a rule from a <code>-o</code> short flag, a <code>--output [DIR]</code> long flag, and the
+description of what the option does.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">buildRule: </span><span class="p">(</span><span class="nx">shortFlag</span><span class="p">,</span> <span class="nx">longFlag</span><span class="p">,</span> <span class="nx">description</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="nv">match: </span>     <span class="nx">longFlag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">OPTIONAL</span><span class="p">)</span>
+  <span class="nv">longFlag: </span> <span class="nx">longFlag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
   <span class="p">{</span>
-    <span class="nv">name: </span>        <span class="nx">long_flag</span><span class="p">.</span><span class="nx">substr</span> <span class="mi">2</span>
-    <span class="nv">short_flag: </span>  <span class="nx">short_flag</span>
-    <span class="nv">long_flag: </span>   <span class="nx">long_flag</span>
+    <span class="nv">name: </span>        <span class="nx">longFlag</span><span class="p">.</span><span class="nx">substr</span> <span class="mi">2</span>
+    <span class="nv">shortFlag: </span>  <span class="nx">shortFlag</span>
+    <span class="nv">longFlag: </span>   <span class="nx">longFlag</span>
     <span class="nv">description: </span> <span class="nx">description</span>
-    <span class="nv">has_argument: </span><span class="o">!!</span><span class="p">(</span><span class="nx">match</span> <span class="o">and</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
+    <span class="nv">hasArgument: </span><span class="o">!!</span><span class="p">(</span><span class="nx">match</span> <span class="o">and</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
   <span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Normalize arguments by expanding merged flags into multiple flags. This allows
-you to have <code>-wl</code> be the same as <code>--watch --lint</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">normalize_arguments: </span><span class="p">(</span><span class="nx">args</span><span class="p">)</span> <span class="o">-&gt;</span>
+you to have <code>-wl</code> be the same as <code>--watch --lint</code>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">normalizeArguments: </span><span class="p">(</span><span class="nx">args</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="nv">args: </span><span class="nx">args</span><span class="p">.</span><span class="nx">slice</span> <span class="mi">0</span>
   <span class="nv">result: </span><span class="p">[]</span>
   <span class="k">for</span> <span class="nx">arg</span> <span class="k">in</span> <span class="nx">args</span>

documentation/docs/repl.html

@@ -1,21 +1,25 @@
-<!DOCTYPE html>  <html> <head>   <title>repl.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               repl.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>A very simple Read-Eval-Print-Loop. Compiles one line at a time to JavaScript
+<!DOCTYPE html>  <html> <head>   <title>repl.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               repl.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>A very simple Read-Eval-Print-Loop. Compiles one line at a time to JavaScript
 and evaluates it. Good for simple tests, or poking around the <strong>Node.js</strong> API.
 Using it looks like this:</p>
 
 <pre><code>coffee&gt; puts "$num bottles of beer" for num in [99..1]
 </code></pre>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-2">#</a>               </div>               <p>Require the <strong>coffee-script</strong> module to get access to the compiler.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">CoffeeScript: </span><span class="nx">require</span> <span class="s1">&#39;./coffee-script&#39;</span>
-<span class="nv">helpers: </span>     <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./helpers&#39;</span><span class="p">).</span><span class="nx">helpers</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Our prompt.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">prompt: </span><span class="s1">&#39;coffee&gt; &#39;</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Quick alias for quitting the REPL.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nx">helpers</span><span class="p">.</span><span class="nx">extend</span> <span class="nx">global</span><span class="p">,</span> <span class="p">{</span>
+<span class="nv">helpers: </span>     <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./helpers&#39;</span><span class="p">).</span><span class="nx">helpers</span>
+<span class="nv">readline: </span>    <span class="nx">require</span> <span class="s1">&#39;readline&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Start by opening up <strong>stdio</strong>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">stdio: </span><span class="nx">process</span><span class="p">.</span><span class="nx">openStdin</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Quick alias for quitting the REPL.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nx">helpers</span><span class="p">.</span><span class="nx">extend</span> <span class="nx">global</span><span class="p">,</span> <span class="p">{</span>
   <span class="nv">quit: </span><span class="o">-&gt;</span> <span class="nx">process</span><span class="p">.</span><span class="nx">exit</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
 <span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>The main REPL function. <strong>run</strong> is called every time a line of code is entered.
 Attempt to evaluate the command. If there's an exception, print it out instead
-of exiting.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">run: </span><span class="p">(</span><span class="nx">code</span><span class="p">)</span> <span class="o">-&gt;</span>
+of exiting.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">run: </span><span class="p">(</span><span class="nx">buffer</span><span class="p">)</span> <span class="o">-&gt;</span>
   <span class="k">try</span>
-    <span class="nv">val: </span><span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">code</span><span class="p">,</span> <span class="p">{</span><span class="nv">no_wrap: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">globals: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">source: </span><span class="s1">&#39;repl&#39;</span><span class="p">}</span>
-    <span class="nx">p</span> <span class="nx">val</span> <span class="k">if</span> <span class="nx">val</span> <span class="o">isnt</span> <span class="kc">undefined</span>
+    <span class="nv">val: </span><span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">buffer</span><span class="p">.</span><span class="nx">toString</span><span class="p">(),</span> <span class="p">{</span><span class="nv">noWrap: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">globals: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">source: </span><span class="s1">&#39;repl&#39;</span><span class="p">}</span>
+    <span class="nx">puts</span> <span class="nx">inspect</span> <span class="nx">val</span> <span class="k">if</span> <span class="nx">val</span> <span class="o">isnt</span> <span class="kc">undefined</span>
   <span class="k">catch</span> <span class="nx">err</span>
     <span class="nx">puts</span> <span class="nx">err</span><span class="p">.</span><span class="nx">stack</span> <span class="o">or</span> <span class="nx">err</span><span class="p">.</span><span class="nx">toString</span><span class="p">()</span>
-  <span class="nx">print</span> <span class="nx">prompt</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Start up the REPL by opening <strong>stdio</strong> and listening for input.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nx">process</span><span class="p">.</span><span class="nx">stdio</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;data&#39;</span><span class="p">,</span> <span class="nx">run</span>
-<span class="nx">process</span><span class="p">.</span><span class="nx">stdio</span><span class="p">.</span><span class="nx">open</span><span class="p">()</span>
-<span class="nx">print</span> <span class="nx">prompt</span>
+  <span class="nx">repl</span><span class="p">.</span><span class="nx">prompt</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Create the REPL by listening to <strong>stdin</strong>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">repl: </span><span class="nx">readline</span><span class="p">.</span><span class="nx">createInterface</span> <span class="nx">stdio</span>
+<span class="nx">repl</span><span class="p">.</span><span class="nx">setPrompt</span> <span class="s1">&#39;coffee&gt; &#39;</span>
+<span class="nx">stdio</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;data&#39;</span><span class="p">,</span>   <span class="p">(</span><span class="nx">buffer</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">repl</span><span class="p">.</span><span class="nx">write</span> <span class="nx">buffer</span>
+<span class="nx">repl</span><span class="p">.</span><span class="nx">addListener</span>  <span class="s1">&#39;close&#39;</span><span class="p">,</span>  <span class="o">-&gt;</span> <span class="nx">stdio</span><span class="p">.</span><span class="nx">destroy</span><span class="p">()</span>
+<span class="nx">repl</span><span class="p">.</span><span class="nx">addListener</span>  <span class="s1">&#39;line&#39;</span><span class="p">,</span>   <span class="nx">run</span>
+<span class="nx">repl</span><span class="p">.</span><span class="nx">prompt</span><span class="p">()</span>
 
 </pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/rewriter.html

@@ -1,66 +1,71 @@
-<!DOCTYPE html>  <html> <head>   <title>rewriter.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               rewriter.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The CoffeeScript language has a good deal of optional syntax, implicit syntax,
+<!DOCTYPE html>  <html> <head>   <title>rewriter.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               rewriter.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The CoffeeScript language has a good deal of optional syntax, implicit syntax,
 and shorthand syntax. This can greatly complicate a grammar and bloat
 the resulting parse table. Instead of making the parser handle it all, we take
 a series of passes over the token stream, using this <strong>Rewriter</strong> to convert
 shorthand into the unambiguous long form, add implicit indentation and
 parentheses, balance incorrect nestings, and generally clean things up.</p>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-2">#</a>               </div>               <p>Set up exported variables for both Node.js and the browser.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="k">if</span> <span class="nx">process</span><span class="o">?</span>
-  <span class="nv">helpers: </span><span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./helpers&#39;</span><span class="p">).</span><span class="nx">helpers</span>
+  <span class="p">{</span><span class="nx">helpers</span><span class="p">}</span><span class="o">:</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./helpers&#39;</span><span class="p">)</span>
 <span class="k">else</span>
   <span class="k">this</span><span class="p">.</span><span class="nv">exports: </span><span class="k">this</span>
-  <span class="nv">helpers: </span>     <span class="k">this</span><span class="p">.</span><span class="nx">helpers</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Import the helpers we need.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">include: </span><span class="nx">helpers</span><span class="p">.</span><span class="nx">include</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>The <strong>Rewriter</strong> class is used by the <a href="lexer.html">Lexer</a>, directly against
+  <span class="nv">helpers: </span>     <span class="k">this</span><span class="p">.</span><span class="nx">helpers</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Import the helpers we need.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="p">{</span><span class="nx">include</span><span class="p">}</span><span class="o">:</span> <span class="nx">helpers</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>The <strong>Rewriter</strong> class is used by the <a href="lexer.html">Lexer</a>, directly against
 its internal array of tokens.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.Rewriter: </span><span class="nx">class</span> <span class="nx">Rewriter</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Rewrite the token stream in multiple passes, one logical filter at
 a time. This could certainly be changed into a single pass through the
 stream, with a big ol' efficient switch, but it's much nicer to work with
 like this. The order of these passes matters -- indentation must be
 corrected before implicit parentheses can be wrapped around blocks of code.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">rewrite: </span><span class="p">(</span><span class="nx">tokens</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nv">tokens: </span><span class="nx">tokens</span>
-    <span class="err">@</span><span class="nx">adjust_comments</span><span class="p">()</span>
-    <span class="err">@</span><span class="nx">remove_leading_newlines</span><span class="p">()</span>
-    <span class="err">@</span><span class="nx">remove_mid_expression_newlines</span><span class="p">()</span>
-    <span class="err">@</span><span class="nx">close_open_calls_and_indexes</span><span class="p">()</span>
-    <span class="err">@</span><span class="nx">add_implicit_indentation</span><span class="p">()</span>
-    <span class="err">@</span><span class="nx">add_implicit_parentheses</span><span class="p">()</span>
-    <span class="err">@</span><span class="nx">ensure_balance</span><span class="p">(</span><span class="nx">BALANCED_PAIRS</span><span class="p">)</span>
-    <span class="err">@</span><span class="nx">rewrite_closing_parens</span><span class="p">()</span>
-    <span class="err">@</span><span class="nx">tokens</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Rewrite the token stream, looking one token ahead and behind.
+    <span class="vi">@tokens: </span><span class="nx">tokens</span>
+    <span class="nx">@adjustComments</span><span class="p">()</span>
+    <span class="nx">@removeLeadingNewlines</span><span class="p">()</span>
+    <span class="nx">@removeMidExpressionNewlines</span><span class="p">()</span>
+    <span class="nx">@closeOpenCallsAndIndexes</span><span class="p">()</span>
+    <span class="nx">@addImplicitIndentation</span><span class="p">()</span>
+    <span class="nx">@addImplicitParentheses</span><span class="p">()</span>
+    <span class="nx">@ensureBalance</span> <span class="nx">BALANCED_PAIRS</span>
+    <span class="nx">@rewriteClosingParens</span><span class="p">()</span>
+    <span class="nx">@tokens</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Rewrite the token stream, looking one token ahead and behind.
 Allow the return value of the block to tell us how many tokens to move
 forwards (or backwards) in the stream, to make sure we don't miss anything
 as tokens are inserted and removed, and the stream changes length under
-our feet.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">scan_tokens: </span><span class="p">(</span><span class="nx">block</span><span class="p">)</span> <span class="o">-&gt;</span>
+our feet.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">scanTokens: </span><span class="p">(</span><span class="nx">block</span><span class="p">)</span> <span class="o">-&gt;</span>
     <span class="nv">i: </span><span class="mi">0</span>
-    <span class="k">while</span> <span class="kc">true</span>
-      <span class="k">break</span> <span class="nx">unless</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span>
-      <span class="nv">move: </span><span class="nx">block</span><span class="p">(</span><span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">],</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">],</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="nx">i</span><span class="p">)</span>
+    <span class="nx">loop</span>
+      <span class="k">break</span> <span class="nx">unless</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span>
+      <span class="nv">move: </span><span class="nx">block</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">],</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">],</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="nx">i</span>
       <span class="nv">i: </span><span class="o">+</span> <span class="nx">move</span>
     <span class="kc">true</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>Massage newlines and indentations so that comments don't have to be
-correctly indented, or appear on a line of their own.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">adjust_comments: </span><span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">scan_tokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
-      <span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;COMMENT&#39;</span>
-      <span class="nv">after: </span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">]</span>
+correctly indented, or appear on a line of their own.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">adjustComments: </span><span class="o">-&gt;</span>
+    <span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
+      <span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;HERECOMMENT&#39;</span>
+      <span class="p">[</span><span class="nx">before</span><span class="p">,</span> <span class="nx">after</span><span class="p">]</span><span class="o">:</span> <span class="p">[</span><span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">-</span> <span class="mi">2</span><span class="p">],</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">]]</span>
       <span class="k">if</span> <span class="nx">after</span> <span class="o">and</span> <span class="nx">after</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;INDENT&#39;</span>
-        <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span>
-        <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">after</span>
-        <span class="k">return</span> <span class="mi">1</span>
-      <span class="k">else</span> <span class="k">if</span> <span class="nx">prev</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;TERMINATOR&#39;</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;INDENT&#39;</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;OUTDENT&#39;</span>
-        <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">2</span><span class="p">]]</span>
+        <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span>
+        <span class="k">if</span> <span class="nx">before</span> <span class="o">and</span> <span class="nx">before</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;OUTDENT&#39;</span> <span class="o">and</span> <span class="nx">post</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span>
+          <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">-</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span>
+        <span class="k">else</span>
+          <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">after</span>
+      <span class="k">else</span> <span class="k">if</span> <span class="nx">prev</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">not</span> <span class="k">in</span> <span class="p">[</span><span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">]</span>
+        <span class="k">if</span> <span class="nx">post</span> <span class="o">and</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span> <span class="o">and</span> <span class="nx">after</span> <span class="o">and</span> <span class="nx">after</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;OUTDENT&#39;</span>
+          <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">2</span><span class="p">)...)</span>
+          <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">2</span><span class="p">]])</span>
+        <span class="k">else</span>
+          <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s2">&quot;\n&quot;</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">2</span><span class="p">]]</span>
         <span class="k">return</span> <span class="mi">2</span>
-      <span class="k">else</span>
-        <span class="k">return</span> <span class="mi">1</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Leading newlines would introduce an ambiguity in the grammar, so we
-dispatch them here.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">remove_leading_newlines: </span><span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">shift</span><span class="p">()</span> <span class="k">while</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">and</span> <span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Some blocks occur in the middle of expressions -- when we're expecting
-this, remove their trailing newlines.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">remove_mid_expression_newlines: </span><span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">scan_tokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
+      <span class="k">return</span> <span class="mi">1</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Leading newlines would introduce an ambiguity in the grammar, so we
+dispatch them here.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">removeLeadingNewlines: </span><span class="o">-&gt;</span>
+    <span class="nx">@tokens</span><span class="p">.</span><span class="nx">shift</span><span class="p">()</span> <span class="k">while</span> <span class="nx">@tokens</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">and</span> <span class="nx">@tokens</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Some blocks occur in the middle of expressions -- when we're expecting
+this, remove their trailing newlines.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">removeMidExpressionNewlines: </span><span class="o">-&gt;</span>
+    <span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
       <span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">post</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">EXPRESSION_CLOSE</span><span class="p">,</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span>
-      <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
+      <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">1</span>
       <span class="k">return</span> <span class="mi">0</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>The lexer has tagged the opening parenthesis of a method call, and the
 opening bracket of an indexing operation. Match them with their paired
-close.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">close_open_calls_and_indexes: </span><span class="o">-&gt;</span>
+close.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">closeOpenCallsAndIndexes: </span><span class="o">-&gt;</span>
     <span class="nv">parens: </span>  <span class="p">[</span><span class="mi">0</span><span class="p">]</span>
     <span class="nv">brackets: </span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
-    <span class="err">@</span><span class="nx">scan_tokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
+    <span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
       <span class="k">switch</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
-        <span class="k">when</span> <span class="s1">&#39;CALL_START&#39;</span>  <span class="k">then</span> <span class="nx">parens</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
-        <span class="k">when</span> <span class="s1">&#39;INDEX_START&#39;</span> <span class="k">then</span> <span class="nx">brackets</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
+        <span class="k">when</span> <span class="s1">&#39;CALL_START&#39;</span>  <span class="k">then</span> <span class="nx">parens</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span>
+        <span class="k">when</span> <span class="s1">&#39;INDEX_START&#39;</span> <span class="k">then</span> <span class="nx">brackets</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span>
         <span class="k">when</span> <span class="s1">&#39;(&#39;</span>           <span class="k">then</span> <span class="nx">parens</span><span class="p">[</span><span class="nx">parens</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="mi">1</span>
         <span class="k">when</span> <span class="s1">&#39;[&#39;</span>           <span class="k">then</span> <span class="nx">brackets</span><span class="p">[</span><span class="nx">brackets</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="mi">1</span>
         <span class="k">when</span> <span class="s1">&#39;)&#39;</span>
@@ -77,74 +82,87 @@ close.</p>             </td>             <td class="code">               <div cl
             <span class="nx">brackets</span><span class="p">[</span><span class="nx">brackets</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">-</span> <span class="mi">1</span>
       <span class="k">return</span> <span class="mi">1</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Methods may be optionally called without parentheses, for simple cases.
 Insert the implicit parentheses here, so that the parser doesn't have to
-deal with them.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">add_implicit_parentheses: </span><span class="o">-&gt;</span>
+deal with them.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">addImplicitParentheses: </span><span class="o">-&gt;</span>
     <span class="nv">stack: </span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
-    <span class="nv">calls: </span><span class="mi">0</span>
-    <span class="err">@</span><span class="nx">scan_tokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
+    <span class="nv">closeCalls: </span><span class="p">(</span><span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
+      <span class="k">for</span> <span class="nx">tmp</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">...</span><span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]]</span>
+        <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;CALL_END&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">][</span><span class="mi">2</span><span class="p">]])</span>
+      <span class="nv">size: </span><span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="mi">1</span>
+      <span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="mi">0</span>
+      <span class="nx">size</span>
+    <span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
       <span class="nv">tag: </span><span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
-      <span class="k">switch</span> <span class="nx">tag</span>
-        <span class="k">when</span> <span class="s1">&#39;CALL_START&#39;</span> <span class="k">then</span> <span class="nv">calls: </span><span class="o">+</span> <span class="mi">1</span>
-        <span class="k">when</span> <span class="s1">&#39;CALL_END&#39;</span>   <span class="k">then</span> <span class="nv">calls: </span><span class="o">-</span> <span class="mi">1</span>
-        <span class="k">when</span> <span class="s1">&#39;INDENT&#39;</span>     <span class="k">then</span> <span class="nx">stack</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
-        <span class="k">when</span> <span class="s1">&#39;OUTDENT&#39;</span>
-          <span class="nv">last: </span><span class="nx">stack</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
-          <span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="nx">last</span>
+      <span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">2</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="nx">stack</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;OUTDENT&#39;</span>
       <span class="nv">open: </span><span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span> <span class="o">&gt;</span> <span class="mi">0</span>
-      <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;CALL_END&#39;</span> <span class="o">and</span> <span class="nx">calls</span> <span class="o">&lt;</span> <span class="mi">0</span> <span class="o">and</span> <span class="nx">open</span>
-        <span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">-</span> <span class="mi">1</span>
-        <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;CALL_END&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]])</span>
+      <span class="k">if</span> <span class="nx">prev</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">.</span><span class="nx">spaced</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">IMPLICIT_FUNC</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">IMPLICIT_CALL</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span> <span class="o">and</span>
+          <span class="o">not</span> <span class="p">(</span><span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;!&#39;</span> <span class="o">and</span> <span class="p">(</span><span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">in</span> <span class="p">[</span><span class="s1">&#39;IN&#39;</span><span class="p">,</span> <span class="s1">&#39;OF&#39;</span><span class="p">]))</span>
+        <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;CALL_START&#39;</span><span class="p">,</span> <span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]]</span>
+        <span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="mi">1</span>
+        <span class="nx">stack</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span> <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">EXPRESSION_START</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span>
         <span class="k">return</span> <span class="mi">2</span>
-      <span class="k">if</span> <span class="o">!</span><span class="nx">post</span><span class="o">?</span> <span class="o">or</span> <span class="nx">include</span> <span class="nx">IMPLICIT_END</span><span class="p">,</span> <span class="nx">tag</span>
-        <span class="k">return</span> <span class="mi">1</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;INDENT&#39;</span> <span class="o">and</span> <span class="nx">prev</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">IMPLICIT_BLOCK</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
-        <span class="k">if</span> <span class="nx">open</span> <span class="o">or</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;INDENT&#39;</span>
-          <span class="nv">idx: </span><span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;OUTDENT&#39;</span> <span class="k">then</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span> <span class="k">else</span> <span class="nx">i</span>
-          <span class="nv">stack_pointer: </span><span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;INDENT&#39;</span> <span class="k">then</span> <span class="mi">2</span> <span class="k">else</span> <span class="mi">1</span>
-          <span class="k">for</span> <span class="nx">tmp</span> <span class="k">in</span> <span class="p">[</span><span class="mi">0</span><span class="p">...</span><span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="nx">stack_pointer</span><span class="p">]]</span>
-            <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">idx</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;CALL_END&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]])</span>
-          <span class="nv">size: </span><span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="nx">stack_pointer</span><span class="p">]</span> <span class="o">+</span> <span class="mi">1</span>
-          <span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="nx">stack_pointer</span><span class="p">]</span><span class="o">:</span> <span class="mi">0</span>
+      <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">EXPRESSION_START</span><span class="p">,</span> <span class="nx">tag</span><span class="p">)</span>
+        <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;INDENT&#39;</span> <span class="o">and</span> <span class="o">!</span><span class="nx">token</span><span class="p">.</span><span class="nx">generated</span> <span class="o">and</span> <span class="nx">open</span> <span class="o">and</span> <span class="o">not</span> <span class="p">(</span><span class="nx">prev</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">IMPLICIT_BLOCK</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]))</span>
+          <span class="nv">size: </span><span class="nx">closeCalls</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
+          <span class="nx">stack</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span>
           <span class="k">return</span> <span class="nx">size</span>
-      <span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">prev</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">IMPLICIT_FUNC</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">IMPLICIT_CALL</span><span class="p">,</span> <span class="nx">tag</span>
-      <span class="nv">calls: </span><span class="mi">0</span>
-      <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;CALL_START&#39;</span><span class="p">,</span> <span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]])</span>
-      <span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="mi">1</span>
-      <span class="k">return</span> <span class="mi">2</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>Because our grammar is LALR(1), it can't handle some single-line
+        <span class="nx">stack</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span>
+        <span class="k">return</span> <span class="mi">1</span>
+      <span class="k">if</span> <span class="nx">open</span> <span class="o">and</span> <span class="o">!</span><span class="nx">token</span><span class="p">.</span><span class="nx">generated</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;,&#39;</span> <span class="o">and</span> <span class="p">(</span><span class="o">!</span><span class="nx">post</span> <span class="o">or</span> <span class="nx">include</span><span class="p">(</span><span class="nx">IMPLICIT_END</span><span class="p">,</span> <span class="nx">tag</span><span class="p">))</span>
+        <span class="nv">j: </span><span class="mi">1</span><span class="p">;</span> <span class="nx">j</span><span class="o">++</span> <span class="k">while</span> <span class="p">(</span><span class="nv">nx: </span><span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="nx">j</span><span class="p">])</span><span class="o">?</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">IMPLICIT_END</span><span class="p">,</span> <span class="nx">nx</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
+        <span class="k">if</span> <span class="nx">nx</span><span class="o">?</span> <span class="o">and</span> <span class="nx">nx</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;,&#39;</span>
+          <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span>
+        <span class="k">else</span>
+          <span class="nv">size: </span><span class="nx">closeCalls</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
+          <span class="nx">stack</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">isnt</span> <span class="s1">&#39;OUTDENT&#39;</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">EXPRESSION_END</span><span class="p">,</span> <span class="nx">tag</span>
+          <span class="k">return</span> <span class="nx">size</span>
+      <span class="k">if</span> <span class="nx">tag</span> <span class="o">isnt</span> <span class="s1">&#39;OUTDENT&#39;</span> <span class="o">and</span> <span class="nx">include</span> <span class="nx">EXPRESSION_END</span><span class="p">,</span> <span class="nx">tag</span>
+        <span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">2</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="nx">stack</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
+        <span class="k">return</span> <span class="mi">1</span>
+      <span class="k">return</span> <span class="mi">1</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>Because our grammar is LALR(1), it can't handle some single-line
 expressions that lack ending delimiters. The <strong>Rewriter</strong> adds the implicit
 blocks, so it doesn't need to. ')' can close a single-line block,
-but we need to make sure it's balanced.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">add_implicit_indentation: </span><span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">scan_tokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
+but we need to make sure it's balanced.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">addImplicitIndentation: </span><span class="o">-&gt;</span>
+    <span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
+      <span class="k">if</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;ELSE&#39;</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;OUTDENT&#39;</span>
+        <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">@indentation</span><span class="p">(</span><span class="nx">token</span><span class="p">)...</span>
+        <span class="k">return</span> <span class="mi">2</span>
+      <span class="k">if</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;CATCH&#39;</span> <span class="o">and</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;TERMINATOR&#39;</span>
+        <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">@indentation</span><span class="p">(</span><span class="nx">token</span><span class="p">)...</span>
+        <span class="k">return</span> <span class="mi">4</span>
       <span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">include</span><span class="p">(</span><span class="nx">SINGLE_LINERS</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span>
         <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;INDENT&#39;</span> <span class="o">and</span>
         <span class="o">not</span> <span class="p">(</span><span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;ELSE&#39;</span> <span class="o">and</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;IF&#39;</span><span class="p">)</span>
       <span class="nv">starter: </span><span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
-      <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]])</span>
+      <span class="p">[</span><span class="nx">indent</span><span class="p">,</span> <span class="nx">outdent</span><span class="p">]</span><span class="o">:</span> <span class="nx">@indentation</span> <span class="nx">token</span>
+      <span class="nv">indent.generated: outdent.generated: </span><span class="kc">true</span>
+      <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">indent</span>
       <span class="nv">idx: </span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span>
       <span class="nv">parens: </span><span class="mi">0</span>
-      <span class="k">while</span> <span class="kc">true</span>
+      <span class="nx">loop</span>
         <span class="nv">idx: </span><span class="o">+</span> <span class="mi">1</span>
-        <span class="nv">tok: </span><span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">idx</span><span class="p">]</span>
-        <span class="nv">pre: </span><span class="err">@</span><span class="nx">tokens</span><span class="p">[</span><span class="nx">idx</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
+        <span class="nv">tok: </span><span class="nx">@tokens</span><span class="p">[</span><span class="nx">idx</span><span class="p">]</span>
+        <span class="nv">pre: </span><span class="nx">@tokens</span><span class="p">[</span><span class="nx">idx</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
         <span class="k">if</span> <span class="p">(</span><span class="o">not</span> <span class="nx">tok</span> <span class="o">or</span>
-            <span class="p">(</span><span class="nx">include</span><span class="p">(</span><span class="nx">SINGLE_CLOSERS</span><span class="p">,</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;;&#39;</span><span class="p">)</span> <span class="o">or</span>
-            <span class="p">(</span><span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;)&#39;</span> <span class="o">&amp;&amp;</span> <span class="nx">parens</span> <span class="o">is</span> <span class="mi">0</span><span class="p">))</span> <span class="o">and</span>
-            <span class="o">not</span> <span class="p">(</span><span class="nx">starter</span> <span class="o">is</span> <span class="s1">&#39;ELSE&#39;</span> <span class="o">and</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;ELSE&#39;</span><span class="p">)</span>
+            <span class="p">(</span><span class="nx">include</span><span class="p">(</span><span class="nx">SINGLE_CLOSERS</span><span class="p">,</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">&#39;;&#39;</span> <span class="o">and</span> <span class="nx">parens</span> <span class="o">is</span> <span class="mi">0</span><span class="p">)</span> <span class="o">or</span>
+            <span class="p">(</span><span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;)&#39;</span> <span class="o">and</span> <span class="nx">parens</span> <span class="o">is</span> <span class="mi">0</span><span class="p">))</span> <span class="o">and</span>
+            <span class="o">not</span> <span class="p">(</span><span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;ELSE&#39;</span> <span class="o">and</span> <span class="nx">starter</span> <span class="o">not</span> <span class="k">in</span> <span class="p">[</span><span class="s1">&#39;IF&#39;</span><span class="p">,</span> <span class="s1">&#39;THEN&#39;</span><span class="p">])</span>
           <span class="nv">insertion: </span><span class="k">if</span> <span class="nx">pre</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s2">&quot;,&quot;</span> <span class="k">then</span> <span class="nx">idx</span> <span class="o">-</span> <span class="mi">1</span> <span class="k">else</span> <span class="nx">idx</span>
-          <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">insertion</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">&#39;OUTDENT&#39;</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]])</span>
+          <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">insertion</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">outdent</span>
           <span class="k">break</span>
         <span class="nv">parens: </span><span class="o">+</span> <span class="mi">1</span> <span class="k">if</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;(&#39;</span>
         <span class="nv">parens: </span><span class="o">-</span> <span class="mi">1</span> <span class="k">if</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;)&#39;</span>
       <span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">&#39;THEN&#39;</span>
-      <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
+      <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">1</span>
       <span class="k">return</span> <span class="mi">0</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-13">#</a>               </div>               <p>Ensure that all listed pairs of tokens are correctly balanced throughout
-the course of the token stream.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ensure_balance: </span><span class="p">(</span><span class="nx">pairs</span><span class="p">)</span> <span class="o">-&gt;</span>
+the course of the token stream.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">ensureBalance: </span><span class="p">(</span><span class="nx">pairs</span><span class="p">)</span> <span class="o">-&gt;</span>
     <span class="nv">levels: </span><span class="p">{}</span>
-    <span class="nv">open_line: </span><span class="p">{}</span>
-    <span class="err">@</span><span class="nx">scan_tokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
+    <span class="nv">openLine: </span><span class="p">{}</span>
+    <span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
       <span class="k">for</span> <span class="nx">pair</span> <span class="k">in</span> <span class="nx">pairs</span>
         <span class="p">[</span><span class="nx">open</span><span class="p">,</span> <span class="nx">close</span><span class="p">]</span><span class="o">:</span> <span class="nx">pair</span>
         <span class="nx">levels</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span><span class="o">:</span> <span class="o">or</span> <span class="mi">0</span>
         <span class="k">if</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="nx">open</span>
-          <span class="nx">open_line</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span><span class="o">:</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="k">if</span> <span class="nx">levels</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span> <span class="o">==</span> <span class="mi">0</span>
+          <span class="nx">openLine</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span><span class="o">:</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="k">if</span> <span class="nx">levels</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span> <span class="o">==</span> <span class="mi">0</span>
           <span class="nx">levels</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="mi">1</span>
         <span class="nx">levels</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span><span class="o">:</span> <span class="o">-</span> <span class="mi">1</span> <span class="k">if</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="nx">close</span>
         <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="p">(</span><span class="s2">&quot;too many ${token[1]} on line ${token[2] + 1}&quot;</span><span class="p">)</span> <span class="k">if</span> <span class="nx">levels</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span> <span class="o">&lt;</span> <span class="mi">0</span>
@@ -152,7 +170,7 @@ the course of the token stream.</p>             </td>             <td class="cod
     <span class="nv">unclosed: </span><span class="nx">key</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">value</span> <span class="k">of</span> <span class="nx">levels</span> <span class="k">when</span> <span class="nx">value</span> <span class="o">&gt;</span> <span class="mi">0</span>
     <span class="k">if</span> <span class="nx">unclosed</span><span class="p">.</span><span class="nx">length</span>
       <span class="nv">open: </span><span class="nx">unclosed</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
-      <span class="nv">line: </span><span class="nx">open_line</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span> <span class="o">+</span> <span class="mi">1</span>
+      <span class="nv">line: </span><span class="nx">openLine</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span> <span class="o">+</span> <span class="mi">1</span>
       <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;unclosed $open on line $line&quot;</span></pre></div>             </td>           </tr>                               <tr id="section-14">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-14">#</a>               </div>               <p>We'd like to support syntax like this:</p>
 
 <pre><code>el.click((event) -&gt;
@@ -164,16 +182,18 @@ inwards, safely. The steps to accomplish this are:</p>
 
 <ol>
 <li>Check that all paired tokens are balanced and in order.</li>
-<li>Rewrite the stream with a stack: if you see an '(' or INDENT, add it
-to the stack. If you see an ')' or OUTDENT, pop the stack and replace
+<li>Rewrite the stream with a stack: if you see an <code>EXPRESSION_START</code>, add it
+to the stack. If you see an <code>EXPRESSION_END</code>, pop the stack and replace
 it with the inverse of what we've just popped.</li>
-<li>Keep track of "debt" for tokens that we fake, to make sure we end
+<li>Keep track of "debt" for tokens that we manufacture, to make sure we end
 up balanced in the end.</li>
-</ol>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">rewrite_closing_parens: </span><span class="o">-&gt;</span>
+<li>Be careful not to alter array or parentheses delimiters with overzealous
+rewriting.</li>
+</ol>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">rewriteClosingParens: </span><span class="o">-&gt;</span>
     <span class="nv">stack: </span><span class="p">[]</span>
     <span class="nv">debt: </span> <span class="p">{}</span>
     <span class="p">(</span><span class="nx">debt</span><span class="p">[</span><span class="nx">key</span><span class="p">]</span><span class="o">:</span> <span class="mi">0</span><span class="p">)</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="nx">INVERSES</span>
-    <span class="err">@</span><span class="nx">scan_tokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
+    <span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=&gt;</span>
       <span class="nv">tag: </span><span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
       <span class="nv">inv: </span><span class="nx">INVERSES</span><span class="p">[</span><span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span>
       <span class="k">if</span> <span class="nx">include</span> <span class="nx">EXPRESSION_START</span><span class="p">,</span> <span class="nx">tag</span>
@@ -182,27 +202,33 @@ up balanced in the end.</li>
       <span class="k">else</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">EXPRESSION_END</span><span class="p">,</span> <span class="nx">tag</span>
         <span class="k">if</span> <span class="nx">debt</span><span class="p">[</span><span class="nx">inv</span><span class="p">]</span> <span class="o">&gt;</span> <span class="mi">0</span>
           <span class="nx">debt</span><span class="p">[</span><span class="nx">inv</span><span class="p">]</span><span class="o">:</span> <span class="o">-</span> <span class="mi">1</span>
-          <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">1</span>
+          <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">1</span>
           <span class="k">return</span> <span class="mi">0</span>
         <span class="k">else</span>
           <span class="nv">match: </span><span class="nx">stack</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
           <span class="nv">mtag: </span> <span class="nx">match</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
-          <span class="k">return</span> <span class="mi">1</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="nx">INVERSES</span><span class="p">[</span><span class="nx">mtag</span><span class="p">]</span>
+          <span class="nv">oppos: </span><span class="nx">INVERSES</span><span class="p">[</span><span class="nx">mtag</span><span class="p">]</span>
+          <span class="k">return</span> <span class="mi">1</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="nx">oppos</span>
           <span class="nx">debt</span><span class="p">[</span><span class="nx">mtag</span><span class="p">]</span><span class="o">:</span> <span class="o">+</span> <span class="mi">1</span>
-          <span class="nv">val: </span><span class="k">if</span> <span class="nx">mtag</span> <span class="o">is</span> <span class="s1">&#39;INDENT&#39;</span> <span class="k">then</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="k">else</span> <span class="nx">INVERSES</span><span class="p">[</span><span class="nx">mtag</span><span class="p">]</span>
-          <span class="err">@</span><span class="nx">tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="nx">INVERSES</span><span class="p">[</span><span class="nx">mtag</span><span class="p">],</span> <span class="nx">val</span><span class="p">]</span>
+          <span class="nv">val: </span><span class="p">[</span><span class="nx">oppos</span><span class="p">,</span> <span class="k">if</span> <span class="nx">mtag</span> <span class="o">is</span> <span class="s1">&#39;INDENT&#39;</span> <span class="k">then</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="k">else</span> <span class="nx">oppos</span><span class="p">]</span>
+          <span class="k">if</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">]</span><span class="o">?</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="nx">mtag</span>
+            <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">val</span>
+            <span class="nx">stack</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">match</span><span class="p">)</span>
+          <span class="k">else</span>
+            <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">val</span>
           <span class="k">return</span> <span class="mi">1</span>
       <span class="k">else</span>
-        <span class="k">return</span> <span class="mi">1</span></pre></div>             </td>           </tr>                               <tr id="section-15">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-15">#</a>               </div>               <h2>Constants</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-16">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-16">#</a>               </div>               <p>List of the token pairs that must be balanced.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">BALANCED_PAIRS: </span><span class="p">[[</span><span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;[&#39;</span><span class="p">,</span> <span class="s1">&#39;]&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;{&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">],</span>
-  <span class="p">[</span><span class="s1">&#39;PARAM_START&#39;</span><span class="p">,</span> <span class="s1">&#39;PARAM_END&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;CALL_START&#39;</span><span class="p">,</span> <span class="s1">&#39;CALL_END&#39;</span><span class="p">],</span>
-  <span class="p">[</span><span class="s1">&#39;INDEX_START&#39;</span><span class="p">,</span> <span class="s1">&#39;INDEX_END&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;SOAKED_INDEX_START&#39;</span><span class="p">,</span> <span class="s1">&#39;SOAKED_INDEX_END&#39;</span><span class="p">]]</span></pre></div>             </td>           </tr>                               <tr id="section-17">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-17">#</a>               </div>               <p>The inverse mappings of <code>BALANCED_PAIRS</code> we're trying to fix up, so we can
+        <span class="k">return</span> <span class="mi">1</span></pre></div>             </td>           </tr>                               <tr id="section-15">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-15">#</a>               </div>               <p>Generate the indentation tokens, based on another token on the same line.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">indentation: </span><span class="p">(</span><span class="nx">token</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="p">[[</span><span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]],</span> <span class="p">[</span><span class="s1">&#39;OUTDENT&#39;</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]]]</span></pre></div>             </td>           </tr>                               <tr id="section-16">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-16">#</a>               </div>               <h2>Constants</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-17">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-17">#</a>               </div>               <p>List of the token pairs that must be balanced.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">BALANCED_PAIRS: </span><span class="p">[[</span><span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;[&#39;</span><span class="p">,</span> <span class="s1">&#39;]&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;{&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">],</span>
+  <span class="p">[</span><span class="s1">&#39;PARAM_START&#39;</span><span class="p">,</span> <span class="s1">&#39;PARAM_END&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;CALL_START&#39;</span><span class="p">,</span> <span class="s1">&#39;CALL_END&#39;</span><span class="p">],</span> <span class="p">[</span><span class="s1">&#39;INDEX_START&#39;</span><span class="p">,</span> <span class="s1">&#39;INDEX_END&#39;</span><span class="p">]]</span></pre></div>             </td>           </tr>                               <tr id="section-18">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-18">#</a>               </div>               <p>The inverse mappings of <code>BALANCED_PAIRS</code> we're trying to fix up, so we can
 look things up from either end.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">INVERSES: </span><span class="p">{}</span>
 <span class="k">for</span> <span class="nx">pair</span> <span class="k">in</span> <span class="nx">BALANCED_PAIRS</span>
   <span class="nx">INVERSES</span><span class="p">[</span><span class="nx">pair</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span><span class="o">:</span> <span class="nx">pair</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
-  <span class="nx">INVERSES</span><span class="p">[</span><span class="nx">pair</span><span class="p">[</span><span class="mi">1</span><span class="p">]]</span><span class="o">:</span> <span class="nx">pair</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-18">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-18">#</a>               </div>               <p>The tokens that signal the start of a balanced pair.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">EXPRESSION_START: </span><span class="nx">pair</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">for</span> <span class="nx">pair</span> <span class="k">in</span> <span class="nx">BALANCED_PAIRS</span></pre></div>             </td>           </tr>                               <tr id="section-19">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-19">#</a>               </div>               <p>The tokens that signal the end of a balanced pair.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">EXPRESSION_END: </span>  <span class="nx">pair</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="k">for</span> <span class="nx">pair</span> <span class="k">in</span> <span class="nx">BALANCED_PAIRS</span></pre></div>             </td>           </tr>                               <tr id="section-20">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-20">#</a>               </div>               <p>Tokens that indicate the close of a clause of an expression.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">EXPRESSION_CLOSE: </span><span class="p">[</span><span class="s1">&#39;CATCH&#39;</span><span class="p">,</span> <span class="s1">&#39;WHEN&#39;</span><span class="p">,</span> <span class="s1">&#39;ELSE&#39;</span><span class="p">,</span> <span class="s1">&#39;FINALLY&#39;</span><span class="p">].</span><span class="nx">concat</span> <span class="nx">EXPRESSION_END</span></pre></div>             </td>           </tr>                               <tr id="section-21">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-21">#</a>               </div>               <p>Tokens that, if followed by an <code>IMPLICIT_CALL</code>, indicate a function invocation.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">IMPLICIT_FUNC: </span> <span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="s1">&#39;SUPER&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="s1">&#39;CALL_END&#39;</span><span class="p">,</span> <span class="s1">&#39;]&#39;</span><span class="p">,</span> <span class="s1">&#39;INDEX_END&#39;</span><span class="p">,</span> <span class="s1">&#39;&lt;-&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-22">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-22">#</a>               </div>               <p>If preceded by an <code>IMPLICIT_FUNC</code>, indicates a function invocation.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">IMPLICIT_CALL: </span> <span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="s1">&#39;NUMBER&#39;</span><span class="p">,</span> <span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s1">&#39;JS&#39;</span><span class="p">,</span> <span class="s1">&#39;REGEX&#39;</span><span class="p">,</span> <span class="s1">&#39;NEW&#39;</span><span class="p">,</span> <span class="s1">&#39;PARAM_START&#39;</span><span class="p">,</span>
-                 <span class="s1">&#39;TRY&#39;</span><span class="p">,</span> <span class="s1">&#39;DELETE&#39;</span><span class="p">,</span> <span class="s1">&#39;TYPEOF&#39;</span><span class="p">,</span> <span class="s1">&#39;SWITCH&#39;</span><span class="p">,</span> <span class="s1">&#39;EXTENSION&#39;</span><span class="p">,</span>
-                 <span class="s1">&#39;TRUE&#39;</span><span class="p">,</span> <span class="s1">&#39;FALSE&#39;</span><span class="p">,</span> <span class="s1">&#39;YES&#39;</span><span class="p">,</span> <span class="s1">&#39;NO&#39;</span><span class="p">,</span> <span class="s1">&#39;ON&#39;</span><span class="p">,</span> <span class="s1">&#39;OFF&#39;</span><span class="p">,</span> <span class="s1">&#39;!&#39;</span><span class="p">,</span> <span class="s1">&#39;!!&#39;</span><span class="p">,</span> <span class="s1">&#39;NOT&#39;</span><span class="p">,</span>
-                 <span class="s1">&#39;@&#39;</span><span class="p">,</span> <span class="s1">&#39;-&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;=&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;[&#39;</span><span class="p">,</span> <span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="s1">&#39;{&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-23">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-23">#</a>               </div>               <p>Tokens indicating that the implicit call must enclose a block of expressions.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">IMPLICIT_BLOCK: </span><span class="p">[</span><span class="s1">&#39;-&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;=&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;{&#39;</span><span class="p">,</span> <span class="s1">&#39;[&#39;</span><span class="p">,</span> <span class="s1">&#39;,&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-24">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-24">#</a>               </div>               <p>Tokens that always mark the end of an implicit call for single-liners.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">IMPLICIT_END: </span>  <span class="p">[</span><span class="s1">&#39;IF&#39;</span><span class="p">,</span> <span class="s1">&#39;UNLESS&#39;</span><span class="p">,</span> <span class="s1">&#39;FOR&#39;</span><span class="p">,</span> <span class="s1">&#39;WHILE&#39;</span><span class="p">,</span> <span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s1">&#39;INDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-25">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-25">#</a>               </div>               <p>Single-line flavors of block expressions that have unclosed endings.
+  <span class="nx">INVERSES</span><span class="p">[</span><span class="nx">pair</span><span class="p">[</span><span class="mi">1</span><span class="p">]]</span><span class="o">:</span> <span class="nx">pair</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-19">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-19">#</a>               </div>               <p>The tokens that signal the start of a balanced pair.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">EXPRESSION_START: </span><span class="nx">pair</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">for</span> <span class="nx">pair</span> <span class="k">in</span> <span class="nx">BALANCED_PAIRS</span></pre></div>             </td>           </tr>                               <tr id="section-20">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-20">#</a>               </div>               <p>The tokens that signal the end of a balanced pair.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">EXPRESSION_END: </span>  <span class="nx">pair</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="k">for</span> <span class="nx">pair</span> <span class="k">in</span> <span class="nx">BALANCED_PAIRS</span></pre></div>             </td>           </tr>                               <tr id="section-21">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-21">#</a>               </div>               <p>Tokens that indicate the close of a clause of an expression.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">EXPRESSION_CLOSE: </span><span class="p">[</span><span class="s1">&#39;CATCH&#39;</span><span class="p">,</span> <span class="s1">&#39;WHEN&#39;</span><span class="p">,</span> <span class="s1">&#39;ELSE&#39;</span><span class="p">,</span> <span class="s1">&#39;FINALLY&#39;</span><span class="p">].</span><span class="nx">concat</span> <span class="nx">EXPRESSION_END</span></pre></div>             </td>           </tr>                               <tr id="section-22">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-22">#</a>               </div>               <p>Tokens that, if followed by an <code>IMPLICIT_CALL</code>, indicate a function invocation.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">IMPLICIT_FUNC: </span> <span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="s1">&#39;SUPER&#39;</span><span class="p">,</span> <span class="s1">&#39;)&#39;</span><span class="p">,</span> <span class="s1">&#39;CALL_END&#39;</span><span class="p">,</span> <span class="s1">&#39;]&#39;</span><span class="p">,</span> <span class="s1">&#39;INDEX_END&#39;</span><span class="p">,</span> <span class="s1">&#39;@&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-23">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-23">#</a>               </div>               <p>If preceded by an <code>IMPLICIT_FUNC</code>, indicates a function invocation.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">IMPLICIT_CALL: </span> <span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="s1">&#39;NUMBER&#39;</span><span class="p">,</span> <span class="s1">&#39;STRING&#39;</span><span class="p">,</span> <span class="s1">&#39;JS&#39;</span><span class="p">,</span> <span class="s1">&#39;REGEX&#39;</span><span class="p">,</span> <span class="s1">&#39;NEW&#39;</span><span class="p">,</span> <span class="s1">&#39;PARAM_START&#39;</span><span class="p">,</span>
+                 <span class="s1">&#39;TRY&#39;</span><span class="p">,</span> <span class="s1">&#39;DELETE&#39;</span><span class="p">,</span> <span class="s1">&#39;TYPEOF&#39;</span><span class="p">,</span> <span class="s1">&#39;SWITCH&#39;</span><span class="p">,</span>
+                 <span class="s1">&#39;TRUE&#39;</span><span class="p">,</span> <span class="s1">&#39;FALSE&#39;</span><span class="p">,</span> <span class="s1">&#39;YES&#39;</span><span class="p">,</span> <span class="s1">&#39;NO&#39;</span><span class="p">,</span> <span class="s1">&#39;ON&#39;</span><span class="p">,</span> <span class="s1">&#39;OFF&#39;</span><span class="p">,</span> <span class="s1">&#39;!&#39;</span><span class="p">,</span> <span class="s1">&#39;!!&#39;</span><span class="p">,</span>
+                 <span class="s1">&#39;THIS&#39;</span><span class="p">,</span> <span class="s1">&#39;NULL&#39;</span><span class="p">,</span>
+                 <span class="s1">&#39;@&#39;</span><span class="p">,</span> <span class="s1">&#39;-&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;=&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;[&#39;</span><span class="p">,</span> <span class="s1">&#39;(&#39;</span><span class="p">,</span> <span class="s1">&#39;{&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-24">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-24">#</a>               </div>               <p>Tokens indicating that the implicit call must enclose a block of expressions.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">IMPLICIT_BLOCK: </span><span class="p">[</span><span class="s1">&#39;-&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;=&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;{&#39;</span><span class="p">,</span> <span class="s1">&#39;[&#39;</span><span class="p">,</span> <span class="s1">&#39;,&#39;</span><span class="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-25">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-25">#</a>               </div>               <p>Tokens that always mark the end of an implicit call for single-liners.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">IMPLICIT_END: </span>  <span class="p">[</span><span class="s1">&#39;IF&#39;</span><span class="p">,</span> <span class="s1">&#39;UNLESS&#39;</span><span class="p">,</span> <span class="s1">&#39;FOR&#39;</span><span class="p">,</span> <span class="s1">&#39;WHILE&#39;</span><span class="p">,</span> <span class="s1">&#39;UNTIL&#39;</span><span class="p">,</span> <span class="s1">&#39;LOOP&#39;</span><span class="p">,</span> <span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s1">&#39;INDENT&#39;</span><span class="p">].</span><span class="nx">concat</span> <span class="nx">EXPRESSION_END</span></pre></div>             </td>           </tr>                               <tr id="section-26">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-26">#</a>               </div>               <p>Single-line flavors of block expressions that have unclosed endings.
 The grammar can't disambiguate them, so we insert the implicit indentation.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">SINGLE_LINERS: </span><span class="p">[</span><span class="s1">&#39;ELSE&#39;</span><span class="p">,</span> <span class="s2">&quot;-&gt;&quot;</span><span class="p">,</span> <span class="s2">&quot;=&gt;&quot;</span><span class="p">,</span> <span class="s1">&#39;TRY&#39;</span><span class="p">,</span> <span class="s1">&#39;FINALLY&#39;</span><span class="p">,</span> <span class="s1">&#39;THEN&#39;</span><span class="p">]</span>
 <span class="nv">SINGLE_CLOSERS: </span><span class="p">[</span><span class="s1">&#39;TERMINATOR&#39;</span><span class="p">,</span> <span class="s1">&#39;CATCH&#39;</span><span class="p">,</span> <span class="s1">&#39;FINALLY&#39;</span><span class="p">,</span> <span class="s1">&#39;ELSE&#39;</span><span class="p">,</span> <span class="s1">&#39;OUTDENT&#39;</span><span class="p">,</span> <span class="s1">&#39;LEADING_WHEN&#39;</span><span class="p">]</span>
 

documentation/docs/scope.html

@@ -1,42 +1,48 @@
-<!DOCTYPE html>  <html> <head>   <title>scope.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               scope.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The <strong>Scope</strong> class regulates lexical scoping within CoffeeScript. As you
+<!DOCTYPE html>  <html> <head>   <title>scope.coffee</title>   <meta http-equiv="content-type" content="text/html; charset=UTF-8">   <link rel="stylesheet" media="all" href="docco.css" /> </head> <body>   <div id="container">     <div id="background"></div>            <div id="jump_to">         Jump To &hellip;         <div id="jump_wrapper">           <div id="jump_page">                                           <a class="source" href="cake.html">                 cake.coffee               </a>                                           <a class="source" href="coffee-script.html">                 coffee-script.coffee               </a>                                           <a class="source" href="command.html">                 command.coffee               </a>                                           <a class="source" href="grammar.html">                 grammar.coffee               </a>                                           <a class="source" href="helpers.html">                 helpers.coffee               </a>                                           <a class="source" href="index.html">                 index.coffee               </a>                                           <a class="source" href="lexer.html">                 lexer.coffee               </a>                                           <a class="source" href="nodes.html">                 nodes.coffee               </a>                                           <a class="source" href="optparse.html">                 optparse.coffee               </a>                                           <a class="source" href="repl.html">                 repl.coffee               </a>                                           <a class="source" href="rewriter.html">                 rewriter.coffee               </a>                                           <a class="source" href="scope.html">                 scope.coffee               </a>                        </div>         </div>       </div>          <table cellpadding="0" cellspacing="0">       <thead>         <tr>           <th class="docs">             <h1>               scope.coffee             </h1>           </th>           <th class="code">           </th>         </tr>       </thead>       <tbody>                               <tr id="section-1">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-1">#</a>               </div>               <p>The <strong>Scope</strong> class regulates lexical scoping within CoffeeScript. As you
 generate code, you create a tree of scopes in the same shape as the nested
 function bodies. Each scope knows about the variables declared within it,
 and has a reference to its parent enclosing scope. In this way, we know which
 variables are new and need to be declared with <code>var</code>, and which are shared
 with the outside.</p>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-2">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-2">#</a>               </div>               <p>Set up exported variables for both <strong>Node.js</strong> and the browser.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="k">this</span><span class="p">.</span><span class="nv">exports: </span><span class="k">this</span> <span class="nx">unless</span> <span class="nx">process</span><span class="o">?</span>
 
-<span class="nv">exports.Scope: </span><span class="nx">class</span> <span class="nx">Scope</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>Initialize a scope with its parent, for lookups up the chain,
+<span class="nv">exports.Scope: </span><span class="nx">class</span> <span class="nx">Scope</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <p>The top-level <strong>Scope</strong> object.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="vi">@root: </span><span class="kc">null</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Initialize a scope with its parent, for lookups up the chain,
 as well as a reference to the <strong>Expressions</strong> node is belongs to, which is
 where it should declare its variables, and a reference to the function that
 it wraps.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">constructor: </span><span class="p">(</span><span class="nx">parent</span><span class="p">,</span> <span class="nx">expressions</span><span class="p">,</span> <span class="nx">method</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="p">[</span><span class="err">@</span><span class="nx">parent</span><span class="p">,</span> <span class="err">@</span><span class="nx">expressions</span><span class="p">,</span> <span class="err">@</span><span class="nx">method</span><span class="p">]</span><span class="o">:</span> <span class="p">[</span><span class="nx">parent</span><span class="p">,</span> <span class="nx">expressions</span><span class="p">,</span> <span class="nx">method</span><span class="p">]</span>
-    <span class="err">@</span><span class="nv">variables: </span><span class="p">{}</span>
-    <span class="err">@</span><span class="nv">temp_var: </span><span class="k">if</span> <span class="err">@</span><span class="nx">parent</span> <span class="k">then</span> <span class="err">@</span><span class="nx">parent</span><span class="p">.</span><span class="nx">temp_var</span> <span class="k">else</span> <span class="s1">&#39;_a&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Look up a variable name in lexical scope, and declare it if it does not
+    <span class="p">[</span><span class="nx">@parent</span><span class="p">,</span> <span class="nx">@expressions</span><span class="p">,</span> <span class="nx">@method</span><span class="p">]</span><span class="o">:</span> <span class="p">[</span><span class="nx">parent</span><span class="p">,</span> <span class="nx">expressions</span><span class="p">,</span> <span class="nx">method</span><span class="p">]</span>
+    <span class="vi">@variables: </span><span class="p">{}</span>
+    <span class="k">if</span> <span class="nx">@parent</span>
+      <span class="vi">@tempVar: </span><span class="nx">@parent</span><span class="p">.</span><span class="nx">tempVar</span>
+    <span class="k">else</span>
+      <span class="nv">Scope.root: </span><span class="k">this</span>
+      <span class="vi">@tempVar: </span><span class="s1">&#39;_a&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Look up a variable name in lexical scope, and declare it if it does not
 already exist.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">find: </span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">true</span> <span class="k">if</span> <span class="err">@</span><span class="nx">check</span> <span class="nx">name</span>
-    <span class="err">@</span><span class="nx">variables</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;var&#39;</span>
-    <span class="kc">false</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Reserve a variable name as originating from a function parameter for this
+    <span class="k">return</span> <span class="kc">true</span> <span class="k">if</span> <span class="nx">@check</span> <span class="nx">name</span>
+    <span class="nx">@variables</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;var&#39;</span>
+    <span class="kc">false</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Test variables and return true the first time fn(v, k) returns true</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">any: </span><span class="p">(</span><span class="nx">fn</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="k">for</span> <span class="nx">v</span><span class="p">,</span> <span class="nx">k</span> <span class="k">of</span> <span class="nx">@variables</span> <span class="k">when</span> <span class="nx">fn</span><span class="p">(</span><span class="nx">v</span><span class="p">,</span> <span class="nx">k</span><span class="p">)</span>
+      <span class="k">return</span> <span class="kc">true</span>
+    <span class="k">return</span> <span class="kc">false</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>Reserve a variable name as originating from a function parameter for this
 scope. No <code>var</code> required for internal references.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">parameter: </span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">variables</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;param&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-6">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-6">#</a>               </div>               <p>Just check to see if a variable has already been declared, without reserving.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">check: </span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="kc">true</span> <span class="k">if</span> <span class="err">@</span><span class="nx">variables</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span>
-    <span class="o">!!</span><span class="p">(</span><span class="err">@</span><span class="nx">parent</span> <span class="o">and</span> <span class="err">@</span><span class="nx">parent</span><span class="p">.</span><span class="nx">check</span><span class="p">(</span><span class="nx">name</span><span class="p">))</span></pre></div>             </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-7">#</a>               </div>               <p>If we need to store an intermediate result, find an available name for a
-compiler-generated variable. <code>_a</code>, <code>_b</code>, and so on...</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">free_variable: </span><span class="o">-&gt;</span>
-    <span class="k">while</span> <span class="err">@</span><span class="nx">check</span> <span class="err">@</span><span class="nx">temp_var</span>
-      <span class="nv">ordinal: </span><span class="mi">1</span> <span class="o">+</span> <span class="nb">parseInt</span> <span class="err">@</span><span class="nx">temp_var</span><span class="p">.</span><span class="nx">substr</span><span class="p">(</span><span class="mi">1</span><span class="p">),</span> <span class="mi">36</span>
-      <span class="err">@</span><span class="nv">temp_var: </span><span class="s1">&#39;_&#39;</span> <span class="o">+</span> <span class="nx">ordinal</span><span class="p">.</span><span class="nx">toString</span><span class="p">(</span><span class="mi">36</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\d/g</span><span class="p">,</span> <span class="s1">&#39;a&#39;</span><span class="p">)</span>
-    <span class="err">@</span><span class="nx">variables</span><span class="p">[</span><span class="err">@</span><span class="nx">temp_var</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;var&#39;</span>
-    <span class="err">@</span><span class="nx">temp_var</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Ensure that an assignment is made at the top of this scope
-(or at the top-level scope, if requested).</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">assign: </span><span class="p">(</span><span class="nx">name</span><span class="p">,</span> <span class="nx">value</span><span class="p">,</span> <span class="nx">top_level</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="k">return</span> <span class="err">@</span><span class="nx">parent</span><span class="p">.</span><span class="nx">assign</span><span class="p">(</span><span class="nx">name</span><span class="p">,</span> <span class="nx">value</span><span class="p">,</span> <span class="nx">top_level</span><span class="p">)</span> <span class="k">if</span> <span class="nx">top_level</span> <span class="o">and</span> <span class="err">@</span><span class="nx">parent</span>
-    <span class="err">@</span><span class="nx">variables</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="p">{</span><span class="nv">value: </span><span class="nx">value</span><span class="p">,</span> <span class="nv">assigned: </span><span class="kc">true</span><span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>Does this scope reference any variables that need to be declared in the
-given function body?</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">has_declarations: </span><span class="p">(</span><span class="nx">body</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nx">body</span> <span class="o">is</span> <span class="err">@</span><span class="nx">expressions</span> <span class="o">and</span> <span class="err">@</span><span class="nx">declared_variables</span><span class="p">().</span><span class="nx">length</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Does this scope reference any assignments that need to be declared at the
-top of the given function body?</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">has_assignments: </span><span class="p">(</span><span class="nx">body</span><span class="p">)</span> <span class="o">-&gt;</span>
-    <span class="nx">body</span> <span class="o">is</span> <span class="err">@</span><span class="nx">expressions</span> <span class="o">and</span> <span class="err">@</span><span class="nx">assigned_variables</span><span class="p">().</span><span class="nx">length</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Return the list of variables first declared in this scope.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">declared_variables: </span><span class="o">-&gt;</span>
-    <span class="p">(</span><span class="nx">key</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="err">@</span><span class="nx">variables</span> <span class="k">when</span> <span class="nx">val</span> <span class="o">is</span> <span class="s1">&#39;var&#39;</span><span class="p">).</span><span class="nx">sort</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>Return the list of assignments that are supposed to be made at the top
-of this scope.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">assigned_variables: </span><span class="o">-&gt;</span>
-    <span class="s2">&quot;$key = ${val.value}&quot;</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="err">@</span><span class="nx">variables</span> <span class="k">when</span> <span class="nx">val</span><span class="p">.</span><span class="nx">assigned</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-13">#</a>               </div>               <p>Compile the JavaScript for all of the variable declarations in this scope.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">compiled_declarations: </span><span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">declared_variables</span><span class="p">().</span><span class="nx">join</span> <span class="s1">&#39;, &#39;</span></pre></div>             </td>           </tr>                               <tr id="section-14">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-14">#</a>               </div>               <p>Compile the JavaScript for all of the variable assignments in this scope.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">compiled_assignments: </span><span class="o">-&gt;</span>
-    <span class="err">@</span><span class="nx">assigned_variables</span><span class="p">().</span><span class="nx">join</span> <span class="s1">&#39;, &#39;</span>
+    <span class="nx">@variables</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;param&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-8">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-8">#</a>               </div>               <p>Just check to see if a variable has already been declared, without reserving.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">check: </span><span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="k">return</span> <span class="kc">true</span> <span class="k">if</span> <span class="nx">@variables</span><span class="p">.</span><span class="nx">hasOwnProperty</span> <span class="nx">name</span>
+    <span class="o">!!</span><span class="p">(</span><span class="nx">@parent</span> <span class="o">and</span> <span class="nx">@parent</span><span class="p">.</span><span class="nx">check</span><span class="p">(</span><span class="nx">name</span><span class="p">))</span></pre></div>             </td>           </tr>                               <tr id="section-9">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-9">#</a>               </div>               <p>If we need to store an intermediate result, find an available name for a
+compiler-generated variable. <code>_a</code>, <code>_b</code>, and so on...</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">freeVariable: </span><span class="o">-&gt;</span>
+    <span class="k">while</span> <span class="nx">@check</span> <span class="nx">@tempVar</span>
+      <span class="nv">ordinal: </span><span class="mi">1</span> <span class="o">+</span> <span class="nb">parseInt</span> <span class="nx">@tempVar</span><span class="p">.</span><span class="nx">substr</span><span class="p">(</span><span class="mi">1</span><span class="p">),</span> <span class="mi">36</span>
+      <span class="vi">@tempVar: </span><span class="s1">&#39;_&#39;</span> <span class="o">+</span> <span class="nx">ordinal</span><span class="p">.</span><span class="nx">toString</span><span class="p">(</span><span class="mi">36</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/\d/g</span><span class="p">,</span> <span class="s1">&#39;a&#39;</span><span class="p">)</span>
+    <span class="nx">@variables</span><span class="p">[</span><span class="nx">@tempVar</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;var&#39;</span>
+    <span class="nx">@tempVar</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Ensure that an assignment is made at the top of this scope
+(or at the top-level scope, if requested).</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">assign: </span><span class="p">(</span><span class="nx">name</span><span class="p">,</span> <span class="nx">value</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="nx">@variables</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="p">{</span><span class="nv">value: </span><span class="nx">value</span><span class="p">,</span> <span class="nv">assigned: </span><span class="kc">true</span><span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-11">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-11">#</a>               </div>               <p>Does this scope reference any variables that need to be declared in the
+given function body?</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">hasDeclarations: </span><span class="p">(</span><span class="nx">body</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="nx">body</span> <span class="o">is</span> <span class="nx">@expressions</span> <span class="o">and</span> <span class="nx">@any</span> <span class="p">(</span><span class="nx">k</span><span class="p">,</span> <span class="nx">val</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">val</span> <span class="o">is</span> <span class="s1">&#39;var&#39;</span></pre></div>             </td>           </tr>                               <tr id="section-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</a>               </div>               <p>Does this scope reference any assignments that need to be declared at the
+top of the given function body?</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">hasAssignments: </span><span class="p">(</span><span class="nx">body</span><span class="p">)</span> <span class="o">-&gt;</span>
+    <span class="nx">body</span> <span class="o">is</span> <span class="nx">@expressions</span> <span class="o">and</span> <span class="nx">@any</span> <span class="p">(</span><span class="nx">k</span><span class="p">,</span> <span class="nx">val</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">val</span><span class="p">.</span><span class="nx">assigned</span></pre></div>             </td>           </tr>                               <tr id="section-13">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-13">#</a>               </div>               <p>Return the list of variables first declared in this scope.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">declaredVariables: </span><span class="o">-&gt;</span>
+    <span class="p">(</span><span class="nx">key</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="nx">@variables</span> <span class="k">when</span> <span class="nx">val</span> <span class="o">is</span> <span class="s1">&#39;var&#39;</span><span class="p">).</span><span class="nx">sort</span><span class="p">()</span></pre></div>             </td>           </tr>                               <tr id="section-14">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-14">#</a>               </div>               <p>Return the list of assignments that are supposed to be made at the top
+of this scope.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">assignedVariables: </span><span class="o">-&gt;</span>
+    <span class="s2">&quot;$key = $val.value&quot;</span> <span class="k">for</span> <span class="nx">key</span><span class="p">,</span> <span class="nx">val</span> <span class="k">of</span> <span class="nx">@variables</span> <span class="k">when</span> <span class="nx">val</span><span class="p">.</span><span class="nx">assigned</span></pre></div>             </td>           </tr>                               <tr id="section-15">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-15">#</a>               </div>               <p>Compile the JavaScript for all of the variable declarations in this scope.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">compiledDeclarations: </span><span class="o">-&gt;</span>
+    <span class="nx">@declaredVariables</span><span class="p">().</span><span class="nx">join</span> <span class="s1">&#39;, &#39;</span></pre></div>             </td>           </tr>                               <tr id="section-16">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-16">#</a>               </div>               <p>Compile the JavaScript for all of the variable assignments in this scope.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">compiledAssignments: </span><span class="o">-&gt;</span>
+    <span class="nx">@assignedVariables</span><span class="p">().</span><span class="nx">join</span> <span class="s1">&#39;, &#39;</span>
 
 </pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/index.html.erb

@@ -46,7 +46,7 @@
         <a href="#conditionals">Conditionals, Ternaries, and Conditional Assignment</a>
         <a href="#aliases">Aliases</a>
         <a href="#splats">Splats...</a>
-        <a href="#while">While Loops</a>
+        <a href="#while">While, Until, and Loop</a>
         <a href="#comprehensions">Comprehensions (Arrays, Objects, and Ranges)</a>
         <a href="#slice_splice">Array Slicing and Splicing with Ranges</a>
         <a href="#expressions">Everything is an Expression</a>
@@ -63,6 +63,7 @@
         <a href="#cake">Cake, and Cakefiles</a>
         <a href="#scripts">"text/coffeescript" Script Tags</a>
         <a href="#resources">Resources</a>
+        <a href="#webchat">Web Chat (IRC)</a>
         <a href="#change_log">Change Log</a>
       </div>
     </div>
@@ -123,13 +124,12 @@ alert reverse '.eeffoC yrT'</textarea></div>
       it compiles into clean JavaScript (the good parts) that can use existing
       JavaScript libraries seamlessly, and passes through
       <a href="http://www.jslint.com/">JSLint</a> without warnings. The compiled
-      output is quite readable &mdash; pretty-printed, with comments
-      preserved intact.
+      output is pretty-printed and quite readable.
     </p>
 
     <p>
       <b>Latest Version:</b>
-      <a href="http://github.com/jashkenas/coffee-script/tarball/0.5.6">0.5.6</a>
+      <a href="http://github.com/jashkenas/coffee-script/tarball/0.7.2">0.7.2</a>
     </p>
 
     <h2>
@@ -139,7 +139,7 @@ alert reverse '.eeffoC yrT'</textarea></div>
 
     <p><i>CoffeeScript on the left, compiled JavaScript output on the right.</i></p>
 
-    <%= code_for('overview', 'cubed_list') %>
+    <%= code_for('overview', 'cubes') %>
 
     <p>
       For a longer CoffeeScript example, check out
@@ -170,12 +170,12 @@ alert reverse '.eeffoC yrT'</textarea></div>
     </p>
 
     <p>
-      To install, first make sure you have a working version of
-      <a href="http://nodejs.org/">Node.js</a> version 0.1.33 or higher.
+      To install, first make sure you have a working copy of the latest tagged version of
+      <a href="http://nodejs.org/">Node.js</a>, currently <b>0.1.90</b> or higher.
       Then clone the CoffeeScript
       <a href="http://github.com/jashkenas/coffee-script">source repository</a>
       from GitHub, or download the latest
-      release: <a href="http://github.com/jashkenas/coffee-script/tarball/0.5.6">0.5.6</a>.
+      release: <a href="http://github.com/jashkenas/coffee-script/tarball/0.7.2">0.7.2</a>.
       To install the CoffeeScript compiler system-wide
       under <tt>/usr/local</tt>, open the directory and run:
     </p>
@@ -184,7 +184,16 @@ alert reverse '.eeffoC yrT'</textarea></div>
 sudo bin/cake install</pre>
 
     <p>
-      This provides the <tt>coffee</tt> command, which will execute CoffeeScripts
+      Alternatively, if you already have the 
+      <a href="http://npmjs.org/">Node Package Manager</a> installed,
+      you can use that to grab the latest CoffeeScript:
+    </p>
+    
+    <pre>
+sudo npm install coffee-script</pre>
+
+    <p>
+      Both of these provide the <tt>coffee</tt> command, which will execute CoffeeScripts
       under Node.js by default, but is also used to compile CoffeeScript
       <tt>.coffee</tt> files into JavaScript, or to run an an interactive REPL.
       When compiling to JavaScript, <tt>coffee</tt> writes the output
@@ -331,7 +340,8 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
 
     <p>
       You don't need to use parentheses to invoke a function if you're passing
-      arguments:<br /><tt>print "coffee"</tt>
+      arguments:<br /><tt>print "coffee"</tt>. Implicit parentheses wrap forwards
+      to the end of the line, or block expression.
     </p>
 
     <p>
@@ -344,8 +354,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       <span id="functions" class="bookmark"></span>
       <b class="header">Functions and Invocation</b>
       Functions are defined by a list of parameters, an arrow, and the
-      function body. The empty function looks like this: <tt>-></tt> All
-      functions in CoffeeScript are named by default, for easier debugging.
+      function body. The empty function looks like this: <tt>-></tt>
     </p>
     <%= code_for('functions', 'cube(5)') %>
     <p>
@@ -378,6 +387,12 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       and match the two styles.
     </p>
     <%= code_for('objects_and_arrays', 'song.join(",")') %>
+    <p>
+      In JavaScript, you can't use reserved words, like <tt>class</tt>, as properties
+      of an object, without quoting them as strings. CoffeeScript notices and quotes 
+      them for you, so you don't have to worry about it (say, when using jQuery).
+    </p>
+    <%= code_for('objects_reserved') %>
 
     <p>
       <span id="lexical_scope" class="bookmark"></span>
@@ -386,7 +401,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       are properly declared within lexical scope &mdash; you never need to write
       <tt>var</tt> yourself.
     </p>
-    <%= code_for('scope', 'new_num') %>
+    <%= code_for('scope', 'inner') %>
     <p>
       Notice how the all of the variable declarations have been pushed up to
       the top of the closest scope, the first time they appear.
@@ -432,7 +447,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     <%= code_for('conditionals') %>
     <p>
       You can assign a variable to a half-expression to perform an operation
-      like Ruby's <tt>||=</tt>, which only assigns a value to a variable 
+      like Ruby's <tt>||=</tt>, which only assigns a value to a variable
       if the variable's current value is falsy.
     </p>
 
@@ -468,6 +483,10 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     <p>
       As a shortcut for <tt>this.property</tt>, you can use <tt>@property</tt>.
     </p>
+    <p>
+      You can use <tt>in</tt> to test for array presence, and <tt>of</tt> to 
+      test for JavaScript object-key presence.
+    </p>
     <%= code_for('aliases') %>
 
     <p>
@@ -482,7 +501,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
 
     <p>
       <span id="while" class="bookmark"></span>
-      <b class="header">While Loops</b>
+      <b class="header">While, Until, and Loop</b>
       The only low-level loop that CoffeeScript provides is the <b>while</b> loop. The
       main difference from JavaScript is that the <b>while</b> loop can be used
       as an expression, returning an array containing the result of each iteration
@@ -490,8 +509,10 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     </p>
     <%= code_for('while', 'lyrics.join("\n")') %>
     <p>
+      For readability, the <b>until</b> keyword is equivalent to <tt>while not</tt>,
+      and the <b>loop</b> keyword is equivalent to <tt>while true</tt>.
       Other JavaScript loops, such as <b>for</b> loops and <b>do-while</b> loops
-      can be mimicked by variations on <b>while</b>, but the hope is that you
+      can be mimicked by variations on <b>loop</b>, but the hope is that you
       won't need to do that with CoffeeScript, either because you're using
       <b>each</b> (<b>forEach</b>) style iterators, or...
     </p>
@@ -510,8 +531,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     <p>
       If you know the start and end of your loop, or would like to step through
       in fixed-size increments, you can use a range to specify the start and
-      end of your comprehension. (The long line-breaking "for" definitions in
-      the compiled JS below allow ranges to count downwards, as well as upwards).
+      end of your comprehension.
     </p>
     <%= code_for('range_comprehensions', 'countdown') %>
     <p>
@@ -531,7 +551,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       the slice, and the second is the index of the last one. Three dots signify
       a range that excludes the end.
     </p>
-    <%= code_for('slices', 'numbers_copy') %>
+    <%= code_for('slices', 'copy') %>
     <p>
       The same syntax can be used with assignment to replace a segment of an
       array with new values (to splice it).
@@ -638,6 +658,10 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       is converted into a call against the immediate ancestor's method of the same name.
     </p>
     <%= code_for('prototypes', '"one_two".dasherize()') %>
+    <p>
+      Finally, you may assign Class-level (static) properties within a class
+      definition by using<br /><tt>@property: value</tt>
+    </p>
 
     <p>
       <span id="pattern_matching" class="bookmark"></span>
@@ -650,7 +674,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       on the right to the variables on the left. In the simplest case, it can be
       used for parallel assignment:
     </p>
-    <%= code_for('parallel_assignment', 'bait') %>
+    <%= code_for('parallel_assignment', 'theBait') %>
     <p>
       But it's also helpful for dealing with functions that return multiple
       values.
@@ -660,7 +684,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       Pattern matching can be used with any depth of array and object nesting,
       to help pull out deeply nested properties.
     </p>
-    <%= code_for('object_extraction', 'poet + " — " + street') %>
+    <%= code_for('object_extraction', 'name + " — " + street') %>
     <p>
       Pattern matching can even be combined with splats.
     </p>
@@ -690,15 +714,6 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       have referred to the undefined "customer" property of the DOM element,
       and trying to call <tt>purchase()</tt> on it would have raised an exception.
     </p>
-    <p>
-      If you have more custom needs for function binding, CoffeeScript includes
-      the <tt>&lt;-</tt> bind operator, which works the same as ECMAScript 5
-      and Prototype.js's <tt>Function#bind</tt>. The first argument is the <tt>this</tt>
-      value, and the remainder are curried arguments. In the example below,
-      we curry a jQuery request for a URL, and then execute the bound function
-      with the missing callback argument.
-    </p>
-    <%= code_for('binding', true) %>
 
     <p>
       <span id="embedded" class="bookmark"></span>
@@ -764,7 +779,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       <b class="header">Multiline Strings and Heredocs</b>
       Multiline strings are allowed in CoffeeScript.
     </p>
-    <%= code_for('strings', 'moby_dick') %>
+    <%= code_for('strings', 'mobyDick') %>
     <p>
       Heredocs can be used to hold formatted or indentation-sensitive text
       (or, if you just don't feel like escaping quotes and apostrophes). The
@@ -838,7 +853,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
         <tt>bin/cake build</tt> to rebuild the CoffeeScript compiler, and <br />
         <tt>bin/cake build:parser</tt> to regenerate the Jison parser if you're
         working on the grammar. <br /><br />
-        <tt>bin/cake build:full</tt> is a good command to run when you're working
+        <tt>git checkout lib &amp;&amp; bin/cake build:full</tt> is a good command to run when you're working
         on the core language. It'll refresh the lib directory
         (in case you broke something), build your altered compiler, use that to
         rebuild itself (a good sanity test) and then run all of the tests. If
@@ -853,23 +868,137 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
         IRC client of your choice, or on
         <a href="http://webchat.freenode.net/">webchat.freenode.net</a>.
       </li>
+      <li>
+        <b>yeungda</b>'s <a href="http://github.com/yeungda/jcoffeescript">JCoffeeScript</a>
+        &mdash; A Java Library that uses Rhino to compile CoffeeScript, allowing
+        compilation within Java projects or on systems that Node.js doesn't support.
+      </li>
       <li>
         <b>defunkt</b>'s <a href="http://github.com/defunkt/coffee-mode">CoffeeScript Major Mode</a>
         &mdash; a Emacs major mode that provides syntax highlighting, indentation
-        support, and some bonus commands. (For Vim and TextMate highlighters,
-        see the <tt>extras</tt> directory of the main repository.)
+        support, and some bonus commands.
+      </li>
+      <li>
+        <b>jashkenas</b>'s <a href="http://github.com/jashkenas/coffee-script-tmbundle">CoffeeScript TextMate Bundle</a>
+        &mdash; which provides syntax highlighting, snippet expansion, and the
+        ability to run bits of CoffeeScript from within TextMate itself.
+      </li>
+      <li>
+        <b>kchmck</b>'s <a href="http://github.com/kchmck/vim-coffee-script">Vim CoffeeScript</a>
+        &mdash; which adds Vim syntax highlighting and indentation support.
+      </li>
+      <li>
+        <b>wavded</b>'s <a href="http://github.com/wavded/gedit-coffeescript">gedit-coffeescript</a>
+        &mdash; a CoffeeScript syntax highlighter for the gedit text editor.
+      </li>
+      <li>
+        <b>yeungda</b>'s <a href="http://yeungda.github.com/coffeescript-idea/">coffeescript-idea</a>
+        &mdash; a plugin for IntelliJ IDEA and RubyMine providing syntax highlighting.
       </li>
       <li>
         <b>mattly</b>'s <a href="http://github.com/mattly/rack-coffee">rack-coffee</a>
         &mdash; a small Rack middleware for serving CoffeeScript files as
         compiled JavaScript on the fly.
       </li>
+      <li>
+        <b>jnicklas</b>'s <a href="http://github.com/jnicklas/bistro_car">BistroCar</a>
+        &mdash; a plugin that serves and bundles CoffeeScript from within your
+        Rails application.
+      </li>
+      <li>
+        <b>dsc</b>'s <a href="http://github.com/dsc/coffeecup">CoffeeCup</a>
+        &mdash; A Python WSGI middleware that compiles CoffeeScript to JavaScript
+        on-demand during development.
+      </li>
+      <li>
+        <b>sutto</b>'s <a href="http://github.com/Sutto/barista">Barista</a>
+        &mdash; a BistroCar alternative that integrates well with
+        <a href="http://documentcloud.github.com/jammit">Jammit</a> and Rails 3.
+      </li>
+      <li>
+        <b>inem</b> and <b>gerad</b>'s <a href="http://github.com/gerad/coffee-haml-filter">coffee-haml-filter</a>
+        &mdash; a custom filter for rendering CoffeeScript inline within
+        <a href="http://haml-lang.com/">HAML</a> templates.
+      </li>
+      <li>
+        <b>jashkenas</b>'s <a href="http://jashkenas.github.com/docco/">Docco</a>
+        &mdash; A quick-and-dirty literate-programming-style documentation generator 
+        for CoffeeScript. Used to produce the annotated source.
+      </li>
     </ul>
 
+    <h2>
+      <span id="webchat" class="bookmark"></span>
+      Web Chat (IRC)
+    </h2>
+
+    <p>
+      Quick help and advice can usually be found in the CoffeeScript IRC room.
+      Join <tt>#coffeescript</tt> on <tt>irc.freenode.net</tt>, or click the
+      button below to open a webchat session on this page.
+    </p>
+
+    <p>
+      <button id="open_webchat">click to open #coffeescript</button>
+    </p>
+
     <h2>
       <span id="change_log" class="bookmark"></span>
       Change Log
     </h2>
+    
+    <p>
+      <b class="header" style="margin-top: 20px;">0.7.1</b>
+      Block-style comments are now passed through and printed as JavaScript block
+      comments -- making them useful for licenses and copyright headers. Better
+      support for running coffee scripts standalone via hashbangs.
+      Improved syntax errors for tokens that are not in the grammar.
+    </p>
+    
+    <p>
+      <b class="header" style="margin-top: 20px;">0.7.0</b>
+      Official CoffeeScript variable style is now camelCase, as in JavaScript.
+      Reserved words are now allowed as object keys, and will be quoted for you.
+      Range comprehensions now generate cleaner code, but you have to specify <tt>by -1</tt>
+      if you'd like to iterate downward. Reporting of syntax errors is greatly 
+      improved from the previous release. Running <tt>coffee</tt> with no arguments
+      now launches the REPL, with Readline support. The <tt>&lt;-</tt> bind operator
+      has been removed from CoffeeScript. The <tt>loop</tt> keyword was added,
+      which is equivalent to a <tt>while true</tt> loop. Comprehensions that contain
+      closures will now close over their variables, like the semantics of a <tt>forEach</tt>.
+      You can now use bound function in class definitions (bound to the instance).
+      For consistency, <tt>a in b</tt> is now an array presence check, and <tt>a of b</tt>
+      is an object-key check. Comments are no longer passed through to the generated
+      JavaScript.
+    </p>
+
+    <p>
+      <b class="header" style="margin-top: 20px;">0.6.2</b>
+      The <tt>coffee</tt> command will now preserve directory structure when
+      compiling a directory full of scripts. Fixed two omissions that were preventing
+      the CoffeeScript compiler from running live within Internet Explorer.
+      There's now a syntax for block comments, similar in spirit to CoffeeScript's heredocs.
+      ECMA Harmony DRY-style pattern matching is now supported, where the name
+      of the property is the same as the name of the value: <tt>{name, length}: func</tt>.
+      Pattern matching is now allowed within comprehension variables. <tt>unless</tt>
+      is now allowed in block form. <tt>until</tt> loops were added, as the inverse
+      of <tt>while</tt> loops. <tt>switch</tt> statements are now allowed without
+      switch object clauses. Compatible
+      with Node.js <b>v0.1.95</b>.
+    </p>
+
+    <p>
+      <b class="header" style="margin-top: 20px;">0.6.1</b>
+      Upgraded CoffeeScript for compatibility with the new Node.js <b>v0.1.90</b>
+      series.
+    </p>
+
+    <p>
+      <b class="header" style="margin-top: 20px;">0.6.0</b>
+      Trailing commas are now allowed, a-la Python. Static
+      properties may be assigned directly within class definitions,
+      using <tt>@property</tt> notation.
+    </p>
 
     <p>
       <b class="header" style="margin-top: 20px;">0.5.6</b>
@@ -1094,7 +1223,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       source: $('#repl_source').val()
       window.compiled_js: ''
       try
-        window.compiled_js: CoffeeScript.compile source, {no_wrap: true}
+        window.compiled_js: CoffeeScript.compile source, {noWrap: true}
         $('#repl_results').text window.compiled_js
         $('#error').hide();
       catch error
@@ -1135,6 +1264,9 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     $('.navigation .minimize').click ->
       document.body.className: 'minimized'
 
+    $('#open_webchat').click ->
+      $(this).replaceWith $('<iframe src="http://webchat.freenode.net/?channels=coffeescript" width="625" height="400"></iframe>')
+
     compile_source()
 
   </script>

documentation/js/aliases.js

@@ -1,14 +1,17 @@
 (function(){
-  var volume;
+  var volume, winner;
   if (ignition === true) {
     launch();
   }
-  if (band !== spinal_tap) {
+  if (band !== SpinalTap) {
     volume = 10;
   }
   if (!(answer === false)) {
-    let_the_wild_rumpus_begin();
+    letTheWildRumpusBegin();
+  }
+  car.speed < limit ? accelerate() : null;
+  if (47 === pick || 92 === pick || 13 === pick) {
+    winner = true;
   }
-  car.speed < speed_limit ? accelerate() : null;
   print("My name is " + this.name);
 })();

documentation/js/array_comprehensions.js

@@ -1,21 +1,19 @@
 (function(){
   var _a, _b, _c, _d, _e, _f, _g, _h, _i, _j, food, lunch, roid, roid2;
-  // Eat lunch.
   lunch = (function() {
-    _a = []; _b = ['toast', 'cheese', 'wine'];
-    for (_c = 0, _d = _b.length; _c < _d; _c++) {
-      food = _b[_c];
+    _a = []; _c = ['toast', 'cheese', 'wine'];
+    for (_b = 0, _d = _c.length; _b < _d; _b++) {
+      food = _c[_b];
       _a.push(eat(food));
     }
     return _a;
-  }).call(this);
-  // Naive collision detection.
-  _e = asteroids;
-  for (_f = 0, _g = _e.length; _f < _g; _f++) {
-    roid = _e[_f];
-    _h = asteroids;
-    for (_i = 0, _j = _h.length; _i < _j; _i++) {
-      roid2 = _h[_i];
+  })();
+  _f = asteroids;
+  for (_e = 0, _g = _f.length; _e < _g; _e++) {
+    roid = _f[_e];
+    _i = asteroids;
+    for (_h = 0, _j = _i.length; _h < _j; _h++) {
+      roid2 = _i[_h];
       if (roid !== roid2) {
         if (roid.overlaps(roid2)) {
           roid.explode();

documentation/js/binding.js

@@ -1,12 +0,0 @@
-(function(){
-  var get_source, url;
-  url = "documentation/coffee/binding.coffee";
-  get_source = (function(func, obj, args) {
-    return function() {
-      return func.apply(obj, args.concat(Array.prototype.slice.call(arguments, 0)));
-    };
-  }(jQuery.get, jQuery, [url]));
-  get_source(function(response) {
-    return alert(response);
-  });
-})();

documentation/js/cake_tasks.js

@@ -1,12 +1,14 @@
 (function(){
   task('test', 'run each of the unit tests', function() {
-    var _a, _b, _c, _d, test;
-    _a = []; _b = test_files;
-    for (_c = 0, _d = _b.length; _c < _d; _c++) {
-      test = _b[_c];
-      _a.push(fs.readFile(test, function(err, code) {
-        return eval(coffee.compile(code));
-      }));
+    var _a, _b, _c, _d;
+    _a = []; _c = files;
+    for (_b = 0, _d = _c.length; _b < _d; _b++) {
+      (function() {
+        var test = _c[_b];
+        return _a.push(fs.readFile(test, function(err, code) {
+          return eval(coffee.compile(code));
+        }));
+      })();
     }
     return _a;
   });

documentation/js/classes.js

@@ -7,28 +7,31 @@
     child.prototype = new ctor();
     child.prototype.constructor = child;
   };
-  Animal = function Animal() {  };
-  Animal.prototype.move = function move(meters) {
+  Animal = function() {  };
+  Animal.prototype.move = function(meters) {
     return alert(this.name + " moved " + meters + "m.");
   };
-  Snake = function Snake(name) {
+
+  Snake = function(name) {
     this.name = name;
     return this;
   };
   __extends(Snake, Animal);
-  Snake.prototype.move = function move() {
+  Snake.prototype.move = function() {
     alert("Slithering...");
     return Snake.__superClass__.move.call(this, 5);
   };
-  Horse = function Horse(name) {
+
+  Horse = function(name) {
     this.name = name;
     return this;
   };
   __extends(Horse, Animal);
-  Horse.prototype.move = function move() {
+  Horse.prototype.move = function() {
     alert("Galloping...");
     return Horse.__superClass__.move.call(this, 45);
   };
+
   sam = new Snake("Sammy the Python");
   tom = new Horse("Tommy the Palomino");
   sam.move();

documentation/js/conditionals.js

@@ -1,12 +1,12 @@
 (function(){
-  var date, expensive, mood;
+  var date, mood, options;
   if (singing) {
-    mood = greatly_improved;
+    mood = greatlyImproved;
   }
-  if (happy && knows_it) {
-    claps_hands();
-    cha_cha_cha();
+  if (happy && knowsIt) {
+    clapsHands();
+    chaChaCha();
   }
   date = friday ? sue : jill;
-  expensive = expensive || do_the_math();
+  options = options || defaultOptions;
 })();

documentation/js/expressions.js

@@ -1,10 +1,10 @@
 (function(){
   var eldest, grade;
-  grade = function grade(student) {
-    if (student.excellent_work) {
+  grade = function(student) {
+    if (student.excellentWork) {
       return "A+";
-    } else if (student.okay_stuff) {
-      if (student.tried_hard) {
+    } else if (student.okayStuff) {
+      if (student.triedHard) {
         return "B";
       } else {
         return "B-";

documentation/js/expressions_comprehension.js

@@ -1,12 +1,11 @@
 (function(){
   var _a, _b, globals, name;
   var __hasProp = Object.prototype.hasOwnProperty;
-  // The first ten global properties.
   globals = (function() {
     _a = []; _b = window;
     for (name in _b) { if (__hasProp.call(_b, name)) {
       _a.push(name);
     }}
     return _a;
-  }).call(this).slice(0, 10);
+  })().slice(0, 10);
 })();

documentation/js/expressions_try.js

@@ -5,5 +5,5 @@
     } catch (error) {
       return "And the error is ... " + error;
     }
-  }).call(this));
+  })());
 })();

documentation/js/fat_arrow.js

@@ -1,6 +1,6 @@
 (function(){
   var Account;
-  Account = function Account(customer, cart) {
+  Account = function(customer, cart) {
     this.customer = customer;
     this.cart = cart;
     return $('.shopping_cart').bind('click', (function(__this) {

documentation/js/functions.js

@@ -1,9 +1,9 @@
 (function(){
   var cube, square;
-  square = function square(x) {
+  square = function(x) {
     return x * x;
   };
-  cube = function cube(x) {
+  cube = function(x) {
     return square(x) * x;
   };
 })();

documentation/js/interpolation.js

@@ -1,5 +1,5 @@
 (function(){
   var author, quote;
   author = "Wittgenstein";
-  quote = "A picture is a fact. -- " + author;
+  quote = ("A picture is a fact. -- " + author);
 })();

documentation/js/interpolation_expression.js

@@ -1,6 +1,6 @@
 (function(){
   var dates, sentence, sep;
-  sentence = "" + (22 / 7) + " is a decent approximation of π";
+  sentence = ("" + (22 / 7) + " is a decent approximation of π");
   sep = "[.\\/\\- ]";
-  dates = (new RegExp("\\d+" + sep + "\\d+" + sep + "\\d+", "g"));
+  dates = (new RegExp(("\\d+" + sep + "\\d+" + sep + "\\d+"), "g"));
 })();

documentation/js/multiple_return_values.js

@@ -1,10 +1,9 @@
 (function(){
-  var _a, city, forecast, temp, weather_report;
-  weather_report = function weather_report(location) {
-    // Make an Ajax request to fetch the weather...
+  var _a, city, forecast, temp, weatherReport;
+  weatherReport = function(location) {
     return [location, 72, "Mostly Sunny"];
   };
-  _a = weather_report("Berkeley, CA");
+  _a = weatherReport("Berkeley, CA");
   city = _a[0];
   temp = _a[1];
   forecast = _a[2];

documentation/js/object_comprehensions.js

@@ -1,17 +1,17 @@
 (function(){
-  var _a, _b, age, ages, child, years_old;
+  var _a, _b, age, ages, child, yearsOld;
   var __hasProp = Object.prototype.hasOwnProperty;
-  years_old = {
+  yearsOld = {
     max: 10,
     ida: 9,
     tim: 11
   };
   ages = (function() {
-    _a = []; _b = years_old;
+    _a = []; _b = yearsOld;
     for (child in _b) { if (__hasProp.call(_b, child)) {
       age = _b[child];
       _a.push(child + " is " + age);
     }}
     return _a;
-  }).call(this);
+  })();
 })();

documentation/js/object_extraction.js

@@ -1,5 +1,5 @@
 (function(){
-  var _a, _b, _c, city, futurists, poet, street;
+  var _a, _b, _c, city, futurists, name, street;
   futurists = {
     sculptor: "Umberto Boccioni",
     painter: "Vladimir Burliuk",
@@ -10,7 +10,7 @@
   };
   _a = futurists;
   _b = _a.poet;
-  poet = _b.name;
+  name = _b.name;
   _c = _b.address;
   street = _c[0];
   city = _c[1];

documentation/js/objects_reserved.js

@@ -0,0 +1,5 @@
+(function(){
+  $('.account').css({
+    'class': 'active'
+  });
+})();

documentation/js/overview.js

@@ -1,43 +1,37 @@
 (function(){
-  var _a, _b, _c, _d, cubed_list, list, math, num, number, opposite_day, race, square;
-  // Assignment:
+  var _a, _b, _c, _d, cubes, list, math, num, number, opposite, race, square;
+  var __slice = Array.prototype.slice;
   number = 42;
-  opposite_day = true;
-  // Conditions:
-  if (opposite_day) {
+  opposite = true;
+  if (opposite) {
     number = -42;
   }
-  // Functions:
-  square = function square(x) {
+  square = function(x) {
     return x * x;
   };
-  // Arrays:
   list = [1, 2, 3, 4, 5];
-  // Objects:
   math = {
     root: Math.sqrt,
     square: square,
-    cube: function cube(x) {
+    cube: function(x) {
       return x * square(x);
     }
   };
-  // Splats:
-  race = function race(winner) {
+  race = function(winner) {
     var runners;
-    runners = Array.prototype.slice.call(arguments, 1, arguments.length - 0);
+    var _a = arguments.length, _b = _a >= 2;
+    runners = __slice.call(arguments, 1, _a - 0);
     return print(winner, runners);
   };
-  // Existence:
-  if ((typeof elvis !== "undefined" && elvis !== null)) {
+  if (typeof elvis !== "undefined" && elvis !== null) {
     alert("I knew it!");
   }
-  // Array comprehensions:
-  cubed_list = (function() {
-    _a = []; _b = list;
-    for (_c = 0, _d = _b.length; _c < _d; _c++) {
-      num = _b[_c];
+  cubes = (function() {
+    _a = []; _c = list;
+    for (_b = 0, _d = _c.length; _b < _d; _b++) {
+      num = _c[_b];
       _a.push(math.cube(num));
     }
     return _a;
-  }).call(this);
+  })();
 })();

documentation/js/parallel_assignment.js

@@ -1,8 +1,8 @@
 (function(){
-  var _a, and_switch, bait;
-  bait = 1000;
-  and_switch = 0;
-  _a = [and_switch, bait];
-  bait = _a[0];
-  and_switch = _a[1];
+  var _a, theBait, theSwitch;
+  theBait = 1000;
+  theSwitch = 0;
+  _a = [theSwitch, theBait];
+  theBait = _a[0];
+  theSwitch = _a[1];
 })();

documentation/js/patterns_and_splats.js

@@ -1,8 +1,9 @@
 (function(){
   var _a, close, contents, open, tag;
+  var __slice = Array.prototype.slice;
   tag = "<impossible>";
   _a = tag.split("");
   open = _a[0];
-  contents = Array.prototype.slice.call(_a, 1, _a.length - 1);
+  contents = __slice.call(_a, 1, _a.length - 1);
   close = _a[_a.length - 1];
 })();

documentation/js/prototypes.js

@@ -1,5 +1,5 @@
 (function(){
-  String.prototype.dasherize = function dasherize() {
+  String.prototype.dasherize = function() {
     return this.replace(/_/g, "-");
   };
 })();

documentation/js/range_comprehensions.js

@@ -1,21 +1,22 @@
 (function(){
-  var _a, _b, _c, _d, _e, countdown, egg_delivery, num;
+  var _a, countdown, deliverEggs, num;
   countdown = (function() {
-    _a = []; _d = 10; _e = 1;
-    for (_c = 0, num = _d; (_d <= _e ? num <= _e : num >= _e); (_d <= _e ? num += 1 : num -= 1), _c++) {
+    _a = [];
+    for (num = 10; num >= 1; num += -1) {
       _a.push(num);
     }
     return _a;
-  }).call(this);
-  egg_delivery = function egg_delivery() {
-    var _f, _g, _h, _i, _j, dozen_eggs, i;
-    _f = []; _i = 0; _j = eggs.length;
-    for (_h = 0, i = _i; (_i <= _j ? i < _j : i > _j); (_i <= _j ? i += 12 : i -= 12), _h++) {
-      _f.push((function() {
-        dozen_eggs = eggs.slice(i, i + 12);
-        return deliver(new egg_carton(dozen));
-      }).call(this));
+  })();
+  deliverEggs = function() {
+    var _b, _c, dozen, i;
+    _b = []; (_c = eggs.length);
+
+    for (i = 0; i < _c; i += 12) {
+      _b.push((function() {
+        dozen = eggs.slice(i, i + 12);
+        return deliver(new eggCarton(dozen));
+      })());
     }
-    return _f;
+    return _b;
   };
 })();

documentation/js/scope.js

@@ -1,11 +1,11 @@
 (function(){
-  var change_numbers, new_num, num;
-  num = 1;
-  change_numbers = function change_numbers() {
-    var new_num;
-    new_num = -1;
-    num = 10;
-    return num;
+  var changeNumbers, inner, outer;
+  outer = 1;
+  changeNumbers = function() {
+    var inner;
+    inner = -1;
+    outer = 10;
+    return outer;
   };
-  new_num = change_numbers();
+  inner = changeNumbers();
 })();

documentation/js/slices.js

@@ -1,6 +1,6 @@
 (function(){
-  var numbers, numbers_copy, three_to_six;
+  var copy, numbers, threeToSix;
   numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
-  three_to_six = numbers.slice(3, 6 + 1);
-  numbers_copy = numbers.slice(0, numbers.length);
+  threeToSix = numbers.slice(3, 6 + 1);
+  copy = numbers.slice(0, numbers.length);
 })();

documentation/js/soaks.js

@@ -1,4 +1,4 @@
 (function(){
   var _a;
-  (_a = lottery.draw_winner()) == undefined ? undefined : _a.address == undefined ? undefined : _a.address.zipcode;
+  typeof (_a = (lottery.drawWinner())) === "undefined" || _a == undefined ? undefined : _a.address == undefined ? undefined : _a.address.zipcode;
 })();

documentation/js/splats.js

@@ -1,17 +1,18 @@
 (function(){
-  var award_medals, contenders, gold, silver, the_field;
-  gold = (silver = (the_field = "unknown"));
-  award_medals = function award_medals(first, second) {
-    var rest;
-    rest = Array.prototype.slice.call(arguments, 2, arguments.length - 0);
+  var awardMedals, contenders, gold, rest, silver;
+  var __slice = Array.prototype.slice;
+  gold = (silver = (rest = "unknown"));
+  awardMedals = function(first, second) {
+    var _a = arguments.length, _b = _a >= 3;
+    rest = __slice.call(arguments, 2, _a - 0);
     gold = first;
     silver = second;
-    the_field = rest;
-    return the_field;
+    rest = rest;
+    return rest;
   };
   contenders = ["Michael Phelps", "Liu Xiang", "Yao Ming", "Allyson Felix", "Shawn Johnson", "Roman Sebrle", "Guo Jingjing", "Tyson Gay", "Asafa Powell", "Usain Bolt"];
-  award_medals.apply(this, contenders);
+  awardMedals.apply(this, contenders);
   alert("Gold: " + gold);
   alert("Silver: " + silver);
-  alert("The Field: " + the_field);
+  alert("The Field: " + rest);
 })();

documentation/js/strings.js

@@ -1,6 +1,6 @@
 (function(){
-  var moby_dick;
-  moby_dick = "Call me Ishmael. Some years ago -- \
+  var mobyDick;
+  mobyDick = "Call me Ishmael. Some years ago -- \
 never mind how long precisely -- having little \
 or no money in my purse, and nothing particular \
 to interest me on shore, I thought I would sail \

documentation/js/switch.js

@@ -1,18 +1,18 @@
 (function(){
   if (day === "Mon") {
-    go_to_work();
+    goToWork();
   } else if (day === "Tue") {
-    go_to_the_park();
+    goToThePark();
   } else if (day === "Thu") {
-    go_ice_fishing();
+    goIceFishing();
   } else if (day === "Fri" || day === "Sat") {
-    if (day === bingo_day) {
-      go_to_bingo();
-      go_dancing();
+    if (day === bingoDay) {
+      goToBingo();
+      goDancing();
     }
   } else if (day === "Sun") {
-    go_to_church();
+    goToChurch();
   } else {
-    go_to_work();
+    goToWork();
   }
 })();

documentation/js/try.js

@@ -1,10 +1,10 @@
 (function(){
   try {
-    all_hell_breaks_loose();
-    cats_and_dogs_living_together();
+    allHellBreaksLoose();
+    catsAndDogsLivingTogether();
   } catch (error) {
     print(error);
   } finally {
-    clean_up();
+    cleanUp();
   }
 })();

documentation/js/while.js

@@ -1,15 +1,13 @@
 (function(){
   var _a, lyrics, num;
-  // Econ 101
-  if (this.studying_economics) {
+  if (this.studyingEconomics) {
     while (supply > demand) {
       buy();
     }
-    while (supply < demand) {
+    while (!(supply > demand)) {
       sell();
     }
   }
-  // Nursery Rhyme
   num = 6;
   lyrics = (function() {
     _a = [];
@@ -18,5 +16,5 @@
 One fell out and bumped his head.");
     }
     return _a;
-  }).call(this);
+  })();
 })();

examples/beautiful_code/regular_expression_matcher.coffee

@@ -21,7 +21,7 @@ match_here: (regexp, text) ->
 
 # Search for a kleene star match at the beginning of the text.
 match_star: (c, regexp, text) ->
-  while true
+  loop
     return true if match_here(regexp, text)
     return false unless text and (text[0] is c or c is '.')
     text: text.slice(1)

examples/blocks.coffee

@@ -33,7 +33,7 @@ File.open: (path, mode, block) ->
 
 # Write.
 write: (location, data) ->
-  path = new Pathname location
+  path: new Pathname location
   raise "Location does not exist" unless path.exists()
 
   File.open path, 'w', (file) ->

examples/code.coffee

@@ -19,7 +19,7 @@ spaced_out_multiline_object: {
   pi: 3.14159
   list: [1, 2, 3, 4]
   regex: /match[ing](every|thing|\/)/gi
-  three: new Idea()
+  three: new Idea
 
   inner_obj: {
     freedom: -> _.freedom()
@@ -94,7 +94,7 @@ while demand > supply
 
 while supply > demand then buy()
 
-while true
+loop
   break if broken
   continue if continuing
 

examples/computer_science/linked_list.coffee

@@ -90,14 +90,14 @@ class LinkedList
 
 
 # Tests.
-list: new LinkedList()
+list: new LinkedList
 
 list.add("Hi")
 puts(list.size()  is 1)
 puts(list.item(0) is "Hi")
 puts(list.item(1) is null)
 
-list: new LinkedList()
+list: new LinkedList
 list.add("zero").add("one").add("two")
 puts(list.size()     is 3)
 puts(list.item(2)    is "two")

examples/potion.coffee

@@ -14,8 +14,7 @@ print(add(2, 4))
 
 # loop: 'quaff' print.
 
-while true
-  print('quaff')
+loop print 'quaff'
 
 
 # ('cheese', 'bread', 'mayo') at (1) print
@@ -61,7 +60,7 @@ class Person
 # p = Person ()
 # p /name string print
 
-p: new Person()
+p: new Person
 print p.name
 
 
@@ -189,9 +188,9 @@ HomePage::get: (url) ->
 # b /right = BTree ()
 
 BTree:    ->
-b:        new BTree()
-b.left:   new BTree()
-b.right:  new BTree()
+b:        new BTree
+b.left:   new BTree
+b.right:  new BTree
 
 
 # BTree = class: /left, /right.
@@ -201,6 +200,6 @@ b.right:  new BTree()
 #   'left path found!' print.
 
 BTree: ->
-b: new BTree()
+b: new BTree
 
 print('left path found!') if b.left?

examples/underscore.coffee

@@ -71,7 +71,7 @@
 
 
   # Current version.
-  _.VERSION: '0.6.0'
+  _.VERSION: '1.0.2'
 
 
   # Collection Functions
@@ -346,7 +346,7 @@
     return [] if len <= 0
     range:    new Array len
     idx:      0
-    while true
+    loop
       return range if (if step > 0 then i - stop else stop - i) >= 0
       range[idx]: i
       idx++
@@ -422,9 +422,10 @@
 
 
   # Extend a given object with all of the properties in a source object.
-  _.extend: (destination, source) ->
-    (destination[key]: val) for key, val of source
-    destination
+  _.extend: (obj) ->
+    for source in _.rest(arguments)
+      (obj[key]: val) for key, val of source
+    obj
 
 
   # Create a (shallow-cloned) duplicate of an object.
@@ -472,7 +473,7 @@
     # Different object sizes?
     return false if aKeys.length isnt bKeys.length
     # Recursive comparison of contents.
-    (return false) for key, val of a when !_.isEqual(val, b[key])
+    (return false) for key, val of a when !(key in b) or !_.isEqual(val, b[key])
     true
 
 
@@ -488,12 +489,11 @@
 
 
   # Is a given value an array?
-  _.isArray:      nativeIsArray or (obj) -> !!(obj and obj.concat and obj.unshift)
+  _.isArray:      nativeIsArray or (obj) -> !!(obj and obj.concat and obj.unshift and not obj.callee)
 
 
   # Is a given variable an arguments object?
-  _.isArguments:  (obj) -> obj and _.isNumber(obj.length) and not obj.concat and
-                           not obj.substr and not obj.apply and not propertyIsEnumerable.call(obj, 'length')
+  _.isArguments:  (obj) -> obj and obj.callee
 
 
   # Is the given value a function?

examples/web_server.coffee

@@ -6,7 +6,7 @@ http: require 'http'
 server: http.createServer (req, res) ->
   res.writeHeader 200, {'Content-Type': 'text/plain'}
   res.write 'Hello, World!'
-  res.close()
+  res.end()
 
 server.listen 3000
 

extras/EXTRAS

@@ -5,19 +5,3 @@ CoffeeScript compiler. To use it in the browser, include the script after any
 inline script tags of type "text/coffeescript" on the page. It will compile
 and evaluate all of the scripts in order.
 
-
-This folder also includes a CoffeeScript syntax highlighter for Vim.
-To install, copy "coffee.vim" into the "syntax" directory of
-your vim72, and enable it in either of the following two ways:
-
-  * Manually, by running `:set syntax=coffee`
-  
-  * Or automatically, by creating a "filetype.vim" file within "~/.vim", which
-    contains something along these lines:
-    
-    if exists("did_load_filetypes")
-      finish
-    end
-    augroup filetypedetect
-      au! BufRead,BufNewFile *.coffee setfiletype coffee
-    augroup END

extras/coffee.vim

@@ -1,117 +0,0 @@
-" Vim syntax file
-" Language:	CoffeeScript
-" Maintainer:	Jeff Olson <olson.jeffery@gmail.com>
-" URL:		http://github.com/olsonjeffery
-" Changes:	(jro) initial port from javascript
-" Last Change:	2006 Jun 19
-" Adaptation of javascript.vim syntax file (distro'd w/ vim72), 
-" maintained by Claudio Fleiner <claudio@fleiner.com>
-" with updates from Scott Shattuck (ss) <ss@technicalpursuit.com>
-
-if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
-    finish
-  endif
-  let main_syntax = 'coffee'
-endif
-
-syn case ignore
-
-syn match   coffeeLineComment      "#.*" contains=@Spell,CoffeeCommentTodo
-syn match   coffeeSpecial	       "\\\d\d\d\|\\."
-syn region  coffeeStringD	       start=+"+  skip=+\\\\\|\\"+  end=+"\|$+  contains=coffeeSpecial,@htmlPreproc
-syn region  coffeeStringS	       start=+'+  skip=+\\\\\|\\'+  end=+'\|$+  contains=coffeeSpecial,@htmlPreproc
-
-syn match   coffeeSpecialCharacter "'\\.'"
-syn match   coffeeNumber	       "-\=\<\d\+L\=\>\|0[xX][0-9a-fA-F]\+\>"
-syn region  coffeeRegexpString     start=+/[^/*]+me=e-1 skip=+\\\\\|\\/+ end=+/[gi]\{0,2\}\s*$+ end=+/[gi]\{0,2\}\s*[;.,)\]}]+me=e-1 contains=@htmlPreproc oneline
-
-syn match coffeeFunctionParams "([^)]*)\s*->"
-syn match coffeeBindFunctionParams "([^)]*)\s*=>"
-syn match coffeePrototypeAccess "::"
-syn match coffeeBindFunction "=[1]>[1]"
-syn match coffeeFunction "->"
-
-syn keyword coffeeExtends   extends
-syn keyword coffeeConditional	if else switch then not
-syn keyword coffeeRepeat		while for in of
-syn keyword coffeeBranch		break continue
-syn keyword coffeeOperator		delete instanceof typeof
-syn keyword coffeeType		Array Boolean Date Function Number Object String RegExp
-syn keyword coffeeStatement		return with
-syn keyword coffeeBoolean		true false
-syn keyword coffeeNull		null undefined
-syn keyword coffeeIdentifier	arguments this var
-syn keyword coffeeLabel		case default
-syn keyword coffeeException		try catch finally throw
-syn keyword coffeeMessage		alert confirm prompt status
-syn keyword coffeeGlobal		self window top parent
-syn keyword coffeeMember		document event location 
-syn keyword coffeeDeprecated	escape unescape
-syn keyword coffeeReserved		abstract boolean byte char class const debugger double enum export final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile 
-
-syn sync fromstart
-syn sync maxlines=100
-
-if main_syntax == "coffee"
-  syn sync ccomment coffeeComment
-endif
-
-" Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_coffee_syn_inits")
-  if version < 508
-    let did_coffee_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink coffeePrototypeAccess Keyword
-  HiLink coffeeExtends        Keyword
-  HiLink coffeeLineComment		Comment
-  HiLink coffeeSpecial		Special
-  HiLink coffeeStringS		String
-  HiLink coffeeStringD		String
-  HiLink coffeeCharacter		Character
-  HiLink coffeeSpecialCharacter	coffeeSpecial
-  HiLink coffeeNumber		coffeeValue
-  HiLink coffeeConditional		Conditional
-  HiLink coffeeRepeat		Repeat
-  HiLink coffeeBranch		Conditional
-  HiLink coffeeOperator		Operator
-  HiLink coffeeType			Type
-  HiLink coffeeStatement		Statement
-  HiLink coffeeBindFunctionParams		Function
-  HiLink coffeeFunctionParams		Function
-  HiLink coffeeFunction		Function
-  HiLink coffeeBindFunction		Function
-  HiLink coffeeBraces		Function
-  HiLink coffeeError		Error
-  HiLink coffeeScrParenError		coffeeError
-  HiLink coffeeNull			Keyword
-  HiLink coffeeBoolean		Boolean
-  HiLink coffeeRegexpString		String
-
-  HiLink coffeeIdentifier		Identifier
-  HiLink coffeeLabel		Label
-  HiLink coffeeException		Exception
-  HiLink coffeeMessage		Keyword
-  HiLink coffeeGlobal		Keyword
-  HiLink coffeeMember		Keyword
-  HiLink coffeeDeprecated		Exception 
-  HiLink coffeeReserved		Keyword
-  HiLink coffeeDebug		Debug
-  HiLink coffeeConstant		Label
-
-  delcommand HiLink
-endif
-
-let b:current_syntax = "coffee"
-if main_syntax == 'coffee'
-  unlet main_syntax
-endif
-
-" vim: ts=8

lib/cake.js

@@ -1,28 +1,23 @@
 (function(){
-  var CoffeeScript, fs, helpers, no_such_task, oparse, options, optparse, path, print_tasks, switches, tasks;
+  var CoffeeScript, fs, helpers, missingTask, oparse, options, optparse, path, printTasks, switches, tasks;
   var __hasProp = Object.prototype.hasOwnProperty;
-  // `cake` is a simplified version of [Make](http://www.gnu.org/software/make/)
-  // ([Rake](http://rake.rubyforge.org/), [Jake](http://github.com/280north/jake))
-  // for CoffeeScript. You define tasks with names and descriptions in a Cakefile,
-  // and can call them from the command line, or invoke them from other tasks.
-  // Running `cake` with no arguments will print out a list of all the tasks in the
-  // current directory's Cakefile.
-  // External dependencies.
   fs = require('fs');
   path = require('path');
   helpers = require('./helpers').helpers;
   optparse = require('./optparse');
   CoffeeScript = require('./coffee-script');
-  // Keep track of the list of defined tasks, the accepted options, and so on.
   tasks = {};
   options = {};
   switches = [];
   oparse = null;
-  // Mixin the top-level Cake functions for Cakefiles to use directly.
   helpers.extend(global, {
-    // Define a Cake task with a short name, a sentence description,
-    // and the function to run as the action itself.
-    task: function task(name, description, action) {
+    task: function(name, description, action) {
+      var _a;
+      if (!(action)) {
+        _a = [description, action];
+        action = _a[0];
+        description = _a[1];
+      }
       tasks[name] = {
         name: name,
         description: description,
@@ -30,70 +25,62 @@
       };
       return tasks[name];
     },
-    // Define an option that the Cakefile accepts. The parsed options hash,
-    // containing all of the command-line options passed, will be made available
-    // as the first argument to the action.
-    option: function option(letter, flag, description) {
+    option: function(letter, flag, description) {
       return switches.push([letter, flag, description]);
     },
-    // Invoke another task in the current Cakefile.
-    invoke: function invoke(name) {
+    invoke: function(name) {
       if (!(tasks[name])) {
-        no_such_task(name);
+        missingTask(name);
       }
       return tasks[name].action(options);
     }
   });
-  // Run `cake`. Executes all of the tasks you pass, in order. Note that Node's
-  // asynchrony may cause tasks to execute in a different order than you'd expect.
-  // If no tasks are passed, print the help screen.
-  exports.run = function run() {
+  exports.run = function() {
     return path.exists('Cakefile', function(exists) {
       var _a, _b, _c, _d, arg, args;
       if (!(exists)) {
-        throw new Error("Cakefile not found in " + (process.cwd()));
+        throw new Error(("Cakefile not found in " + (process.cwd())));
       }
       args = process.argv.slice(2, process.argv.length);
-      CoffeeScript.run(fs.readFileSync('Cakefile'), {
+      CoffeeScript.run(fs.readFileSync('Cakefile').toString(), {
         source: 'Cakefile'
       });
       oparse = new optparse.OptionParser(switches);
       if (!(args.length)) {
-        return print_tasks();
+        return printTasks();
       }
       options = oparse.parse(args);
-      _a = []; _b = options.arguments;
-      for (_c = 0, _d = _b.length; _c < _d; _c++) {
-        arg = _b[_c];
+      _a = []; _c = options.arguments;
+      for (_b = 0, _d = _c.length; _b < _d; _b++) {
+        arg = _c[_b];
         _a.push(invoke(arg));
       }
       return _a;
     });
   };
-  // Display the list of Cake tasks in a format similar to `rake -T`
-  print_tasks = function print_tasks() {
-    var _a, _b, _c, _d, _e, _f, i, name, spaces, task;
+  printTasks = function() {
+    var _a, _b, desc, i, name, spaces, task;
     puts('');
     _a = tasks;
     for (name in _a) { if (__hasProp.call(_a, name)) {
       task = _a[name];
       spaces = 20 - name.length;
       spaces = spaces > 0 ? (function() {
-        _b = []; _e = 0; _f = spaces;
-        for (_d = 0, i = _e; (_e <= _f ? i <= _f : i >= _f); (_e <= _f ? i += 1 : i -= 1), _d++) {
+        _b = [];
+        for (i = 0; i <= spaces; i += 1) {
           _b.push(' ');
         }
         return _b;
-      }).call(this).join('') : '';
-      puts("cake " + name + spaces + " # " + (task.description));
+      })().join('') : '';
+      desc = task.description ? ("# " + task.description) : '';
+      puts("cake " + name + spaces + " " + desc);
     }}
     if (switches.length) {
       return puts(oparse.help());
     }
   };
-  // Print an error and exit when attempting to all an undefined task.
-  no_such_task = function no_such_task(task) {
-    process.stdio.writeError("No such task: \"" + task + "\"\n");
+  missingTask = function(task) {
+    puts("No such task: \"" + task + "\"");
     return process.exit(1);
   };
 })();

lib/coffee-script.js

@@ -1,13 +1,6 @@
 (function(){
-  var Lexer, compile, helpers, lexer, parser, path, process_scripts;
-  // CoffeeScript can be used both on the server, as a command-line compiler based
-  // on Node.js/V8, or to run CoffeeScripts directly in the browser. This module
-  // contains the main entry functions for tokenzing, parsing, and compiling source
-  // CoffeeScript into JavaScript.
-  // If included on a webpage, it will automatically sniff out, compile, and
-  // execute all scripts present in `text/coffeescript` tags.
-  // Set up dependencies correctly for both the server and the browser.
-  if ((typeof process !== "undefined" && process !== null)) {
+  var Lexer, compile, helpers, lexer, parser, path, processScripts;
+  if (typeof process !== "undefined" && process !== null) {
     path = require('path');
     Lexer = require('./lexer').Lexer;
     parser = require('./parser').parser;
@@ -22,53 +15,33 @@
     parser = this.parser;
     helpers = this.helpers;
   }
-  // The current CoffeeScript version number.
-  exports.VERSION = '0.5.6';
-  // Instantiate a Lexer for our use here.
+  exports.VERSION = '0.7.2';
   lexer = new Lexer();
-  // Compile a string of CoffeeScript code to JavaScript, using the Coffee/Jison
-  // compiler.
-  exports.compile = (compile = function compile(code, options) {
+  exports.compile = (compile = function(code, options) {
     options = options || {};
     try {
       return (parser.parse(lexer.tokenize(code))).compile(options);
     } catch (err) {
       if (options.source) {
-        err.message = "In " + (options.source) + ", " + (err.message);
+        err.message = ("In " + options.source + ", " + err.message);
       }
       throw err;
     }
   });
-  // Tokenize a string of CoffeeScript code, and return the array of tokens.
-  exports.tokens = function tokens(code) {
+  exports.tokens = function(code) {
     return lexer.tokenize(code);
   };
-  // Tokenize and parse a string of CoffeeScript code, and return the AST. You can
-  // then compile it by calling `.compile()` on the root, or traverse it by using
-  // `.traverse()` with a callback.
-  exports.nodes = function nodes(code) {
+  exports.nodes = function(code) {
     return parser.parse(lexer.tokenize(code));
   };
-  // Compile and execute a string of CoffeeScript (on the server), correctly
-  // setting `__filename`, `__dirname`, and relative `require()`.
   exports.run = (function(code, options) {
     var __dirname, __filename;
     module.filename = (__filename = options.source);
     __dirname = path.dirname(__filename);
     return eval(exports.compile(code, options));
   });
-  // Extend CoffeeScript with a custom language extension. It should hook in to
-  // the **Lexer** (as a peer of any of the lexer's tokenizing methods), and
-  // push a token on to the stack that contains a **Node** as the value (as a
-  // peer of the nodes in [nodes.coffee](nodes.html)).
-  exports.extend = function extend(func) {
-    return Lexer.extensions.push(func);
-  };
-  // The real Lexer produces a generic stream of tokens. This object provides a
-  // thin wrapper around it, compatible with the Jison API. We can then pass it
-  // directly as a "Jison lexer".
   parser.lexer = {
-    lex: function lex() {
+    lex: function() {
       var token;
       token = this.tokens[this.pos] || [""];
       this.pos += 1;
@@ -76,36 +49,29 @@
       this.yytext = token[1];
       return token[0];
     },
-    setInput: function setInput(tokens) {
+    setInput: function(tokens) {
       this.tokens = tokens;
       this.pos = 0;
       return this.pos;
     },
-    upcomingInput: function upcomingInput() {
+    upcomingInput: function() {
       return "";
-    },
-    showPosition: function showPosition() {
-      return this.pos;
     }
   };
-  // Activate CoffeeScript in the browser by having it compile and evaluate
-  // all script tags with a content-type of `text/coffeescript`. This happens
-  // on page load. Unfortunately, the text contents of remote scripts cannot be
-  // accessed from the browser, so only inline script tags will work.
   if ((typeof document !== "undefined" && document !== null) && document.getElementsByTagName) {
-    process_scripts = function process_scripts() {
+    processScripts = function() {
       var _a, _b, _c, _d, tag;
-      _a = []; _b = document.getElementsByTagName('script');
-      for (_c = 0, _d = _b.length; _c < _d; _c++) {
-        tag = _b[_c];
+      _a = []; _c = document.getElementsByTagName('script');
+      for (_b = 0, _d = _c.length; _b < _d; _b++) {
+        tag = _c[_b];
         tag.type === 'text/coffeescript' ? _a.push(eval(exports.compile(tag.innerHTML))) : null;
       }
       return _a;
     };
     if (window.addEventListener) {
-      window.addEventListener('load', process_scripts, false);
+      window.addEventListener('load', processScripts, false);
     } else if (window.attachEvent) {
-      window.attachEvent('onload', process_scripts);
+      window.attachEvent('onload', processScripts);
     }
   }
 })();

lib/command.js

@@ -1,29 +1,20 @@
 (function(){
-  var BANNER, CoffeeScript, SWITCHES, compile_options, compile_script, compile_scripts, compile_stdio, fs, lint, option_parser, options, optparse, parse_options, path, print_tokens, sources, usage, version, watch_scripts, write_js;
-  // The `coffee` utility. Handles command-line compilation of CoffeeScript
-  // into various forms: saved into `.js` files or printed to stdout, piped to
-  // [JSLint](http://javascriptlint.com/) or recompiled every time the source is
-  // saved, printed as a token stream or as the syntax tree, or launch an
-  // interactive REPL.
-  // External dependencies.
+  var BANNER, CoffeeScript, SWITCHES, _a, compileOptions, compileScript, compileScripts, compileStdio, exec, fs, lint, optionParser, options, optparse, parseOptions, path, printTokens, sources, spawn, usage, version, watch, writeJs;
   fs = require('fs');
   path = require('path');
   optparse = require('./optparse');
   CoffeeScript = require('./coffee-script');
-  // The help banner that is printed when `coffee` is called without arguments.
+  _a = require('child_process');
+  spawn = _a.spawn;
+  exec = _a.exec;
   BANNER = 'coffee compiles CoffeeScript source files into JavaScript.\n\nUsage:\n  coffee path/to/script.coffee';
-  // The list of all the valid option flags that `coffee` knows how to handle.
   SWITCHES = [['-c', '--compile', 'compile to JavaScript and save as .js files'], ['-i', '--interactive', 'run an interactive CoffeeScript REPL'], ['-o', '--output [DIR]', 'set the directory for compiled JavaScript'], ['-w', '--watch', 'watch scripts for changes, and recompile'], ['-p', '--print', 'print the compiled JavaScript to stdout'], ['-l', '--lint', 'pipe the compiled JavaScript through JSLint'], ['-s', '--stdio', 'listen for and compile scripts over stdio'], ['-e', '--eval', 'compile a string from the command line'], ['--no-wrap', 'compile without the top-level function wrapper'], ['-t', '--tokens', 'print the tokens that the lexer produces'], ['-n', '--nodes', 'print the parse tree that Jison produces'], ['-v', '--version', 'display CoffeeScript version'], ['-h', '--help', 'display this help message']];
-  // Top-level objects shared by all the functions.
   options = {};
   sources = [];
-  option_parser = null;
-  // Run `coffee` by parsing passed options and determining what action to take.
-  // Many flags cause us to divert before compiling anything. Flags passed after
-  // `--` will be passed verbatim to your script as arguments in `process.argv`
-  exports.run = function run() {
+  optionParser = null;
+  exports.run = function() {
     var flags, separator;
-    parse_options();
+    parseOptions();
     if (options.help) {
       return usage();
     }
@@ -34,13 +25,13 @@
       return require('./repl');
     }
     if (options.stdio) {
-      return compile_stdio();
+      return compileStdio();
     }
     if (options.eval) {
-      return compile_script('console', sources[0]);
+      return compileScript('console', sources[0]);
     }
     if (!(sources.length)) {
-      return usage();
+      return require('./repl');
     }
     separator = sources.indexOf('--');
     flags = [];
@@ -48,180 +39,178 @@
       flags = sources.slice((separator + 1), sources.length);
       sources = sources.slice(0, separator);
     }
+    if (options.run) {
+      flags = sources.slice(1, sources.length + 1).concat(flags);
+      sources = [sources[0]];
+    }
     process.ARGV = (process.argv = flags);
-    if (options.watch) {
-      watch_scripts();
-    }
-    return compile_scripts();
+    return compileScripts();
   };
-  // Asynchronously read in each CoffeeScript in a list of source files and
-  // compile them.
-  compile_scripts = function compile_scripts() {
-    var _a, _b, _c, _d, compile, source;
-    compile = function compile(source) {
-      return path.exists(source, function(exists) {
-        if (!(exists)) {
-          throw new Error("File not found: " + source);
-        }
-        return fs.readFile(source, function(err, code) {
-          return compile_script(source, code);
-        });
-      });
-    };
-    _a = []; _b = sources;
-    for (_c = 0, _d = _b.length; _c < _d; _c++) {
-      source = _b[_c];
-      _a.push(compile(source));
+  compileScripts = function() {
+    var _b, _c, _d, _e;
+    _b = []; _d = sources;
+    for (_c = 0, _e = _d.length; _c < _e; _c++) {
+      (function() {
+        var base, compile;
+        var source = _d[_c];
+        return _b.push((function() {
+          base = source;
+          compile = function(source, topLevel) {
+            return path.exists(source, function(exists) {
+              if (!(exists)) {
+                throw new Error("File not found: " + source);
+              }
+              return fs.stat(source, function(err, stats) {
+                if (stats.isDirectory()) {
+                  return fs.readdir(source, function(err, files) {
+                    var _f, _g, _h, _i, file;
+                    _f = []; _h = files;
+                    for (_g = 0, _i = _h.length; _g < _i; _g++) {
+                      file = _h[_g];
+                      _f.push(compile(path.join(source, file)));
+                    }
+                    return _f;
+                  });
+                } else if (topLevel || path.extname(source) === '.coffee') {
+                  fs.readFile(source, function(err, code) {
+                    return compileScript(source, code.toString(), base);
+                  });
+                  if (options.watch) {
+                    return watch(source, base);
+                  }
+                }
+              });
+            });
+          };
+          return compile(source, true);
+        })());
+      })();
     }
-    return _a;
+    return _b;
   };
-  // Compile a single source script, containing the given code, according to the
-  // requested options. Both compile_scripts and watch_scripts share this method
-  // in common. If evaluating the script directly sets `__filename`, `__dirname`
-  // and `module.filename` to be correct relative to the script's path.
-  compile_script = function compile_script(source, code) {
-    var code_opts, js, o;
+  compileScript = function(source, code, base) {
+    var codeOpts, js, o;
     o = options;
-    code_opts = compile_options(source);
+    codeOpts = compileOptions(source);
     try {
       if (o.tokens) {
-        return print_tokens(CoffeeScript.tokens(code));
+        return printTokens(CoffeeScript.tokens(code));
       } else if (o.nodes) {
         return puts(CoffeeScript.nodes(code).toString());
       } else if (o.run) {
-        return CoffeeScript.run(code, code_opts);
+        return CoffeeScript.run(code, codeOpts);
       } else {
-        js = CoffeeScript.compile(code, code_opts);
+        js = CoffeeScript.compile(code, codeOpts);
         if (o.print) {
-          return process.stdio.write(js);
+          return print(js);
         } else if (o.compile) {
-          return write_js(source, js);
+          return writeJs(source, js, base);
         } else if (o.lint) {
           return lint(js);
         }
       }
     } catch (err) {
-      if (o.watch) {
-        return puts(err.message);
-      } else {
-        throw err;
+      if (!(o.watch)) {
+        error(err.stack) && process.exit(1);
       }
+      return puts(err.message);
     }
   };
-  // Attach the appropriate listeners to compile scripts incoming over **stdin**,
-  // and write them back to **stdout**.
-  compile_stdio = function compile_stdio() {
-    var code;
+  compileStdio = function() {
+    var code, stdin;
     code = '';
-    process.stdio.open();
-    process.stdio.addListener('data', function(string) {
-      if (string) {
-        return code += string;
+    stdin = process.openStdin();
+    stdin.addListener('data', function(buffer) {
+      if (buffer) {
+        return code += buffer.toString();
       }
     });
-    return process.stdio.addListener('close', function() {
-      return compile_script('stdio', code);
+    return stdin.addListener('end', function() {
+      return compileScript('stdio', code);
     });
   };
-  // Watch a list of source CoffeeScript files using `fs.watchFile`, recompiling
-  // them every time the files are updated. May be used in combination with other
-  // options, such as `--lint` or `--print`.
-  watch_scripts = function watch_scripts() {
-    var _a, _b, _c, _d, source, watch;
-    watch = function watch(source) {
-      return fs.watchFile(source, {
-        persistent: true,
-        interval: 500
-      }, function(curr, prev) {
-        if (curr.mtime.getTime() === prev.mtime.getTime()) {
-          return null;
+  watch = function(source, base) {
+    return fs.watchFile(source, {
+      persistent: true,
+      interval: 500
+    }, function(curr, prev) {
+      if (curr.mtime.getTime() === prev.mtime.getTime()) {
+        return null;
+      }
+      return fs.readFile(source, function(err, code) {
+        return compileScript(source, code.toString(), base);
+      });
+    });
+  };
+  writeJs = function(source, js, base) {
+    var baseDir, compile, dir, filename, jsPath, srcDir;
+    filename = path.basename(source, path.extname(source)) + '.js';
+    srcDir = path.dirname(source);
+    baseDir = srcDir.substring(base.length);
+    dir = options.output ? path.join(options.output, baseDir) : srcDir;
+    jsPath = path.join(dir, filename);
+    compile = function() {
+      return fs.writeFile(jsPath, js, function(err) {
+        if (options.compile && options.watch) {
+          return puts("Compiled " + source);
         }
-        return fs.readFile(source, function(err, code) {
-          return compile_script(source, code);
-        });
       });
     };
-    _a = []; _b = sources;
-    for (_c = 0, _d = _b.length; _c < _d; _c++) {
-      source = _b[_c];
-      _a.push(watch(source));
-    }
-    return _a;
-  };
-  // Write out a JavaScript source file with the compiled code. By default, files
-  // are written out in `cwd` as `.js` files with the same name, but the output
-  // directory can be customized with `--output`.
-  write_js = function write_js(source, js) {
-    var dir, filename, js_path;
-    filename = path.basename(source, path.extname(source)) + '.js';
-    dir = options.output || path.dirname(source);
-    js_path = path.join(dir, filename);
-    return fs.writeFile(js_path, js);
-  };
-  // Pipe compiled JS through JSLint (requires a working `jsl` command), printing
-  // any errors or warnings that arise.
-  lint = function lint(js) {
-    var jsl;
-    jsl = process.createChildProcess('jsl', ['-nologo', '-stdin']);
-    jsl.addListener('output', function(result) {
-      if (result) {
-        return puts(result.replace(/\n/g, ''));
-      }
+    return path.exists(dir, function(exists) {
+      return exists ? compile() : exec(("mkdir -p " + dir), compile);
     });
-    jsl.addListener('error', function(result) {
-      if (result) {
-        return puts(result);
-      }
-    });
-    jsl.write(js);
-    return jsl.close();
   };
-  // Pretty-print a stream of tokens.
-  print_tokens = function print_tokens(tokens) {
-    var _a, _b, _c, _d, _e, strings, tag, token, value;
+  lint = function(js) {
+    var jsl, printIt;
+    printIt = function(buffer) {
+      return print(buffer.toString());
+    };
+    jsl = spawn('jsl', ['-nologo', '-stdin']);
+    jsl.stdout.addListener('data', printIt);
+    jsl.stderr.addListener('data', printIt);
+    jsl.stdin.write(js);
+    return jsl.stdin.end();
+  };
+  printTokens = function(tokens) {
+    var _b, _c, _d, _e, _f, strings, tag, token, value;
     strings = (function() {
-      _a = []; _b = tokens;
-      for (_c = 0, _d = _b.length; _c < _d; _c++) {
-        token = _b[_c];
-        _a.push((function() {
-          _e = [token[0], token[1].toString().replace(/\n/, '\\n')];
-          tag = _e[0];
-          value = _e[1];
+      _b = []; _d = tokens;
+      for (_c = 0, _e = _d.length; _c < _e; _c++) {
+        token = _d[_c];
+        _b.push((function() {
+          _f = [token[0], token[1].toString().replace(/\n/, '\\n')];
+          tag = _f[0];
+          value = _f[1];
           return "[" + tag + " " + value + "]";
-        }).call(this));
+        })());
       }
-      return _a;
-    }).call(this);
+      return _b;
+    })();
     return puts(strings.join(' '));
   };
-  // Use the [OptionParser module](optparse.html) to extract all options from
-  // `process.argv` that are specified in `SWITCHES`.
-  parse_options = function parse_options() {
+  parseOptions = function() {
     var o;
-    option_parser = new optparse.OptionParser(SWITCHES, BANNER);
-    o = (options = option_parser.parse(process.argv));
+    optionParser = new optparse.OptionParser(SWITCHES, BANNER);
+    o = (options = optionParser.parse(process.argv.slice(2, process.argv.length)));
     options.run = !(o.compile || o.print || o.lint);
     options.print = !!(o.print || (o.eval || o.stdio && o.compile));
-    sources = options.arguments.slice(2, options.arguments.length);
+    sources = options.arguments;
     return sources;
   };
-  // The compile-time options to pass to the CoffeeScript compiler.
-  compile_options = function compile_options(source) {
+  compileOptions = function(source) {
     var o;
     o = {
       source: source
     };
-    o['no_wrap'] = options['no-wrap'];
+    o.noWrap = options['no-wrap'];
     return o;
   };
-  // Print the `--help` usage message and exit.
-  usage = function usage() {
-    puts(option_parser.help());
+  usage = function() {
+    puts(optionParser.help());
     return process.exit(0);
   };
-  // Print the `--version` message and exit.
-  version = function version() {
-    puts("CoffeeScript version " + (CoffeeScript.VERSION));
+  version = function() {
+    puts("CoffeeScript version " + CoffeeScript.VERSION);
     return process.exit(0);
   };
 })();

lib/grammar.js

@@ -1,77 +1,42 @@
 (function(){
   var Parser, _a, _b, _c, _d, _e, _f, _g, _h, alt, alternatives, grammar, name, o, operators, token, tokens, unwrap;
   var __hasProp = Object.prototype.hasOwnProperty;
-  // The CoffeeScript parser is generated by [Jison](http://github.com/zaach/jison)
-  // from this grammar file. Jison is a bottom-up parser generator, similar in
-  // style to [Bison](http://www.gnu.org/software/bison), implemented in JavaScript.
-  // It can recognize [LALR(1), LR(0), SLR(1), and LR(1)](http://en.wikipedia.org/wiki/LR_grammar)
-  // type grammars. To create the Jison parser, we list the pattern to match
-  // on the left-hand side, and the action to take (usually the creation of syntax
-  // tree nodes) on the right. As the parser runs, it
-  // shifts tokens from our token stream, from left to right, and
-  // [attempts to match](http://en.wikipedia.org/wiki/Bottom-up_parsing)
-  // the token sequence against the rules below. When a match can be made, it
-  // reduces into the [nonterminal](http://en.wikipedia.org/wiki/Terminal_and_nonterminal_symbols)
-  // (the enclosing name at the top), and we proceed from there.
-  // If you run the `cake build:parser` command, Jison constructs a parse table
-  // from our rules and saves it into `lib/parser.js`.
-  // The only dependency is on the **Jison.Parser**.
   Parser = require('jison').Parser;
-  // Jison DSL
-  // ---------
-  // Since we're going to be wrapped in a function by Jison in any case, if our
-  // action immediately returns a value, we can optimize by removing the function
-  // wrapper and just returning the value directly.
   unwrap = /function\s*\(\)\s*\{\s*return\s*([\s\S]*);\s*\}/;
-  // Our handy DSL for Jison grammar generation, thanks to
-  // [Tim Caswell](http://github.com/creationix). For every rule in the grammar,
-  // we pass the pattern-defining string, the action to run, and extra options,
-  // optionally. If no action is specified, we simply pass the value of the
-  // previous nonterminal.
-  o = function o(pattern_string, action, options) {
+  o = function(patternString, action, options) {
     var match;
     if (!(action)) {
-      return [pattern_string, '$$ = $1;', options];
+      return [patternString, '$$ = $1;', options];
     }
-    action = (match = (action + '').match(unwrap)) ? match[1] : "(" + action + "())";
-    return [pattern_string, "$$ = " + action + ";", options];
+    action = (match = (action + '').match(unwrap)) ? match[1] : ("(" + action + "())");
+    return [patternString, ("$$ = " + action + ";"), options];
   };
-  // Grammatical Rules
-  // -----------------
-  // In all of the rules that follow, you'll see the name of the nonterminal as
-  // the key to a list of alternative matches. With each match's action, the
-  // dollar-sign variables are provided by Jison as references to the value of
-  // their numeric position, so in this rule:
-  //     "Expression UNLESS Expression"
-  // `$1` would be the value of the first `Expression`, `$2` would be the token
-  // for the `UNLESS` terminal, and `$3` would be the value of the second
-  // `Expression`.
   grammar = {
-    // The **Root** is the top-level node in the syntax tree. Since we parse bottom-up,
-    // all parsing must end here.
-    Root: [o("", function() {
+    Root: [
+      o("", function() {
         return new Expressions();
       }), o("TERMINATOR", function() {
         return new Expressions();
-      }), o("Expressions"), o("Block TERMINATOR")
+      }), o("Body"), o("Block TERMINATOR")
     ],
-    // Any list of expressions or method body, seperated by line breaks or
-    // semicolons.
-    Expressions: [o("Expression", function() {
+    Body: [
+      o("Line", function() {
         return Expressions.wrap([$1]);
-      }), o("Expressions TERMINATOR Expression", function() {
+      }), o("Body TERMINATOR Line", function() {
         return $1.push($3);
-      }), o("Expressions TERMINATOR")
+      }), o("Body TERMINATOR")
     ],
-    // All the different types of expressions in our language. The basic unit of
-    // CoffeeScript is the **Expression** -- you'll notice that there is no
-    // "statement" nonterminal. Expressions serve as the building blocks
-    // of many other rules, making them somewhat circular.
-    Expression: [o("Value"), o("Call"), o("Curry"), o("Code"), o("Operation"), o("Assign"), o("If"), o("Try"), o("Throw"), o("Return"), o("While"), o("For"), o("Switch"), o("Extends"), o("Class"), o("Splat"), o("Existence"), o("Comment"), o("Extension")],
-    // A an indented block of expressions. Note that the [Rewriter](rewriter.html)
-    // will convert some postfix forms into blocks for us, by adjusting the
-    // token stream.
-    Block: [o("INDENT Expressions OUTDENT", function() {
+    Line: [o("Expression"), o("Statement")],
+    Statement: [
+      o("Return"), o("Throw"), o("BREAK", function() {
+        return new LiteralNode($1);
+      }), o("CONTINUE", function() {
+        return new LiteralNode($1);
+      })
+    ],
+    Expression: [o("Value"), o("Call"), o("Code"), o("Operation"), o("Assign"), o("If"), o("Try"), o("While"), o("For"), o("Switch"), o("Extends"), o("Class"), o("Splat"), o("Existence"), o("Comment")],
+    Block: [
+      o("INDENT Body OUTDENT", function() {
         return $2;
       }), o("INDENT OUTDENT", function() {
         return new Expressions();
@@ -79,29 +44,23 @@
         return Expressions.wrap([$2]);
       })
     ],
-    // A literal identifier, a variable name or property.
-    Identifier: [o("IDENTIFIER", function() {
-        return new LiteralNode(yytext);
+    Identifier: [
+      o("IDENTIFIER", function() {
+        return new LiteralNode($1);
       })
     ],
-    // Alphanumerics are separated from the other **Literal** matchers because
-    // they can also serve as keys in object literals.
-    AlphaNumeric: [o("NUMBER", function() {
-        return new LiteralNode(yytext);
+    AlphaNumeric: [
+      o("NUMBER", function() {
+        return new LiteralNode($1);
       }), o("STRING", function() {
-        return new LiteralNode(yytext);
+        return new LiteralNode($1);
       })
     ],
-    // All of our immediate values. These can (in general), be passed straight
-    // through and printed to JavaScript.
-    Literal: [o("AlphaNumeric"), o("JS", function() {
-        return new LiteralNode(yytext);
+    Literal: [
+      o("AlphaNumeric"), o("JS", function() {
+        return new LiteralNode($1);
       }), o("REGEX", function() {
-        return new LiteralNode(yytext);
-      }), o("BREAK", function() {
-        return new LiteralNode(yytext);
-      }), o("CONTINUE", function() {
-        return new LiteralNode(yytext);
+        return new LiteralNode($1);
       }), o("TRUE", function() {
         return new LiteralNode(true);
       }), o("FALSE", function() {
@@ -116,57 +75,54 @@
         return new LiteralNode(false);
       })
     ],
-    // Assignment of a variable, property, or index to a value.
-    Assign: [o("Value ASSIGN Expression", function() {
+    Assign: [
+      o("Assignable ASSIGN Expression", function() {
         return new AssignNode($1, $3);
       })
     ],
-    // Assignment when it happens within an object literal. The difference from
-    // the ordinary **Assign** is that these allow numbers and strings as keys.
-    AssignObj: [o("Identifier ASSIGN Expression", function() {
+    AssignObj: [
+      o("Identifier", function() {
+        return new ValueNode($1);
+      }), o("AlphaNumeric"), o("Identifier ASSIGN Expression", function() {
         return new AssignNode(new ValueNode($1), $3, 'object');
       }), o("AlphaNumeric ASSIGN Expression", function() {
         return new AssignNode(new ValueNode($1), $3, 'object');
       }), o("Comment")
     ],
-    // A return statement from a function body.
-    Return: [o("RETURN Expression", function() {
+    Return: [
+      o("RETURN Expression", function() {
         return new ReturnNode($2);
       }), o("RETURN", function() {
         return new ReturnNode(new ValueNode(new LiteralNode('null')));
       })
     ],
-    // A comment. Because CoffeeScript passes comments through to JavaScript, we
-    // have to parse comments like any other construct, and identify all of the
-    // positions in which they can occur in the grammar.
-    Comment: [o("COMMENT", function() {
-        return new CommentNode(yytext);
+    Comment: [
+      o("HERECOMMENT", function() {
+        return new CommentNode($1);
       })
     ],
-    // [The existential operator](http://jashkenas.github.com/coffee-script/#existence).
-    Existence: [o("Expression ?", function() {
+    Existence: [
+      o("Expression ?", function() {
         return new ExistenceNode($1);
       })
     ],
-    // The **Code** node is the function literal. It's defined by an indented block
-    // of **Expressions** preceded by a function arrow, with an optional parameter
-    // list.
-    Code: [o("PARAM_START ParamList PARAM_END FuncGlyph Block", function() {
+    Code: [
+      o("PARAM_START ParamList PARAM_END FuncGlyph Block", function() {
         return new CodeNode($2, $5, $4);
       }), o("FuncGlyph Block", function() {
         return new CodeNode([], $2, $1);
       })
     ],
-    // CoffeeScript has two different symbols for functions. `->` is for ordinary
-    // functions, and `=>` is for functions bound to the current value of *this*.
-    FuncGlyph: [o("->", function() {
+    FuncGlyph: [
+      o("->", function() {
         return 'func';
       }), o("=>", function() {
         return 'boundfunc';
       })
     ],
-    // The list of parameters that a function accepts can be of any length.
-    ParamList: [o("", function() {
+    OptComma: [o(''), o(',')],
+    ParamList: [
+      o("", function() {
         return [];
       }), o("Param", function() {
         return [$1];
@@ -174,42 +130,47 @@
         return $1.concat([$3]);
       })
     ],
-    // A single parameter in a function definition can be ordinary, or a splat
-    // that hoovers up the remaining arguments.
-    Param: [o("PARAM", function() {
-        return new LiteralNode(yytext);
+    Param: [
+      o("PARAM", function() {
+        return new LiteralNode($1);
       }), o("Param . . .", function() {
         return new SplatNode($1);
       })
     ],
-    // A splat that occurs outside of a parameter list.
-    Splat: [o("Expression . . .", function() {
+    Splat: [
+      o("Expression . . .", function() {
         return new SplatNode($1);
       })
     ],
-    // The types of things that can be treated as values -- assigned to, invoked
-    // as functions, indexed into, named as a class, etc.
-    Value: [o("Identifier", function() {
+    SimpleAssignable: [
+      o("Identifier", function() {
         return new ValueNode($1);
-      }), o("Literal", function() {
-        return new ValueNode($1);
-      }), o("Array", function() {
+      }), o("Value Accessor", function() {
+        return $1.push($2);
+      }), o("Invocation Accessor", function() {
+        return new ValueNode($1, [$2]);
+      }), o("ThisProperty")
+    ],
+    Assignable: [
+      o("SimpleAssignable"), o("Array", function() {
         return new ValueNode($1);
       }), o("Object", function() {
         return new ValueNode($1);
+      })
+    ],
+    Value: [
+      o("Assignable"), o("Literal", function() {
+        return new ValueNode($1);
       }), o("Parenthetical", function() {
         return new ValueNode($1);
       }), o("Range", function() {
         return new ValueNode($1);
-      }), o("This"), o("Value Accessor", function() {
-        return $1.push($2);
-      }), o("Invocation Accessor", function() {
-        return new ValueNode($1, [$2]);
+      }), o("This"), o("NULL", function() {
+        return new ValueNode(new LiteralNode('null'));
       })
     ],
-    // The general group of accessors into an object, by property, by prototype
-    // or by array index or slice.
-    Accessor: [o("PROPERTY_ACCESS Identifier", function() {
+    Accessor: [
+      o("PROPERTY_ACCESS Identifier", function() {
         return new AccessorNode($2);
       }), o("PROTOTYPE_ACCESS Identifier", function() {
         return new AccessorNode($2, 'prototype');
@@ -221,142 +182,142 @@
         return new SliceNode($1);
       })
     ],
-    // Indexing into an object or array using bracket notation.
-    Index: [o("INDEX_START Expression INDEX_END", function() {
+    Index: [
+      o("INDEX_START Expression INDEX_END", function() {
         return new IndexNode($2);
-      }), o("SOAKED_INDEX_START Expression SOAKED_INDEX_END", function() {
-        return new IndexNode($2, 'soak');
+      }), o("INDEX_SOAK Index", function() {
+        $2.soakNode = true;
+        return $2;
+      }), o("INDEX_PROTO Index", function() {
+        $2.proto = true;
+        return $2;
       })
     ],
-    // In CoffeeScript, an object literal is simply a list of assignments.
-    Object: [o("{ AssignList }", function() {
-        return new ObjectNode($2);
-      }), o("{ IndentedAssignList }", function() {
+    Object: [
+      o("{ AssignList OptComma }", function() {
         return new ObjectNode($2);
       })
     ],
-    // Class definitions have optional bodies of prototype property assignments,
-    // and optional references to the superclass.
-    Class: [o("CLASS Value", function() {
-        return new ClassNode($2);
-      }), o("CLASS Value EXTENDS Value", function() {
-        return new ClassNode($2, $4);
-      }), o("CLASS Value IndentedAssignList", function() {
-        return new ClassNode($2, null, $3);
-      }), o("CLASS Value EXTENDS Value IndentedAssignList", function() {
-        return new ClassNode($2, $4, $5);
-      })
-    ],
-    // Assignment of properties within an object literal can be separated by
-    // comma, as in JavaScript, or simply by newline.
-    AssignList: [o("", function() {
+    AssignList: [
+      o("", function() {
         return [];
       }), o("AssignObj", function() {
         return [$1];
       }), o("AssignList , AssignObj", function() {
         return $1.concat([$3]);
-      }), o("AssignList TERMINATOR AssignObj", function() {
-        return $1.concat([$3]);
-      }), o("AssignList , TERMINATOR AssignObj", function() {
+      }), o("AssignList OptComma TERMINATOR AssignObj", function() {
         return $1.concat([$4]);
+      }), o("AssignList OptComma INDENT AssignList OptComma OUTDENT", function() {
+        return $1.concat($4);
       })
     ],
-    // An **AssignList** within a block indentation.
-    IndentedAssignList: [o("INDENT AssignList OUTDENT", function() {
-        return $2;
+    Class: [
+      o("CLASS SimpleAssignable", function() {
+        return new ClassNode($2);
+      }), o("CLASS SimpleAssignable EXTENDS Value", function() {
+        return new ClassNode($2, $4);
+      }), o("CLASS SimpleAssignable INDENT ClassBody OUTDENT", function() {
+        return new ClassNode($2, null, $4);
+      }), o("CLASS SimpleAssignable EXTENDS Value INDENT ClassBody OUTDENT", function() {
+        return new ClassNode($2, $4, $6);
       })
     ],
-    // The three flavors of function call: normal, object instantiation with `new`,
-    // and calling `super()`
-    Call: [o("Invocation"), o("NEW Invocation", function() {
-        return $2.new_instance();
-      }), o("Super")
-    ],
-    Curry: [o("Value <- Arguments", function() {
-        return new CurryNode($1, $3);
+    ClassAssign: [
+      o("AssignObj", function() {
+        return $1;
+      }), o("ThisProperty ASSIGN Expression", function() {
+        return new AssignNode(new ValueNode($1), $3, 'this');
       })
     ],
-    // Extending an object by setting its prototype chain to reference a parent
-    // object.
-    Extends: [o("Value EXTENDS Value", function() {
+    ClassBody: [
+      o("", function() {
+        return [];
+      }), o("ClassAssign", function() {
+        return [$1];
+      }), o("ClassBody TERMINATOR ClassAssign", function() {
+        return $1.concat($3);
+      })
+    ],
+    Call: [
+      o("Invocation"), o("Super"), o("NEW Invocation", function() {
+        return $2.newInstance();
+      }), o("NEW Value", function() {
+        return (new CallNode($2, [])).newInstance();
+      })
+    ],
+    Extends: [
+      o("SimpleAssignable EXTENDS Value", function() {
         return new ExtendsNode($1, $3);
       })
     ],
-    // Ordinary function invocation, or a chained series of calls.
-    Invocation: [o("Value Arguments", function() {
+    Invocation: [
+      o("Value Arguments", function() {
         return new CallNode($1, $2);
       }), o("Invocation Arguments", function() {
         return new CallNode($1, $2);
       })
     ],
-    // The list of arguments to a function call.
-    Arguments: [o("CALL_START ArgList CALL_END", function() {
+    Arguments: [
+      o("CALL_START ArgList OptComma CALL_END", function() {
         return $2;
       })
     ],
-    // Calling super.
-    Super: [o("SUPER CALL_START ArgList CALL_END", function() {
-        return new CallNode('super', $3);
+    Super: [
+      o("SUPER Arguments", function() {
+        return new CallNode('super', $2);
       })
     ],
-    // A reference to the *this* current object, either naked or to a property.
-    This: [o("@", function() {
+    This: [
+      o("THIS", function() {
         return new ValueNode(new LiteralNode('this'));
-      }), o("@ Identifier", function() {
+      }), o("@", function() {
+        return new ValueNode(new LiteralNode('this'));
+      })
+    ],
+    ThisProperty: [
+      o("@ Identifier", function() {
         return new ValueNode(new LiteralNode('this'), [new AccessorNode($2)]);
       })
     ],
-    // The CoffeeScript range literal.
-    Range: [o("[ Expression . . Expression ]", function() {
+    Range: [
+      o("[ Expression . . Expression ]", function() {
         return new RangeNode($2, $5);
       }), o("[ Expression . . . Expression ]", function() {
         return new RangeNode($2, $6, true);
       })
     ],
-    // The slice literal.
-    Slice: [o("INDEX_START Expression . . Expression INDEX_END", function() {
+    Slice: [
+      o("INDEX_START Expression . . Expression INDEX_END", function() {
         return new RangeNode($2, $5);
       }), o("INDEX_START Expression . . . Expression INDEX_END", function() {
         return new RangeNode($2, $6, true);
       })
     ],
-    // The array literal.
-    Array: [o("[ ArgList ]", function() {
+    Array: [
+      o("[ ArgList OptComma ]", function() {
         return new ArrayNode($2);
       })
     ],
-    // The **ArgList** is both the list of objects passed into a function call,
-    // as well as the contents of an array literal
-    // (i.e. comma-separated expressions). Newlines work as well.
-    ArgList: [o("", function() {
+    ArgList: [
+      o("", function() {
         return [];
       }), o("Expression", function() {
         return [$1];
-      }), o("INDENT Expression", function() {
-        return [$2];
       }), o("ArgList , Expression", function() {
         return $1.concat([$3]);
-      }), o("ArgList TERMINATOR Expression", function() {
-        return $1.concat([$3]);
-      }), o("ArgList , TERMINATOR Expression", function() {
+      }), o("ArgList OptComma TERMINATOR Expression", function() {
         return $1.concat([$4]);
-      }), o("ArgList , INDENT Expression", function() {
-        return $1.concat([$4]);
-      }), o("ArgList OUTDENT")
-    ],
-    // Just simple, comma-separated, required arguments (no fancy syntax). We need
-    // this to be separate from the **ArgList** for use in **Switch** blocks, where
-    // having the newlines wouldn't make sense.
-    SimpleArgs: [o("Expression"), o("SimpleArgs , Expression", function() {
-        if ($1 instanceof Array) {
-          return $1.concat([$3]);
-        } else {
-          return [$1].concat([$3]);
-        }
+      }), o("ArgList OptComma INDENT ArgList OptComma OUTDENT", function() {
+        return $1.concat($4);
       })
     ],
-    // The variants of *try/catch/finally* exception handling blocks.
-    Try: [o("TRY Block Catch", function() {
+    SimpleArgs: [
+      o("Expression"), o("SimpleArgs , Expression", function() {
+        return $1 instanceof Array ? $1.concat([$3]) : [$1].concat([$3]);
+      })
+    ],
+    Try: [
+      o("TRY Block Catch", function() {
         return new TryNode($2, $3[0], $3[1]);
       }), o("TRY Block FINALLY Block", function() {
         return new TryNode($2, null, null, $4);
@@ -364,69 +325,82 @@
         return new TryNode($2, $3[0], $3[1], $5);
       })
     ],
-    // A catch clause names its error and runs a block of code.
-    Catch: [o("CATCH Identifier Block", function() {
+    Catch: [
+      o("CATCH Identifier Block", function() {
         return [$2, $3];
       })
     ],
-    // Throw an exception object.
-    Throw: [o("THROW Expression", function() {
+    Throw: [
+      o("THROW Expression", function() {
         return new ThrowNode($2);
       })
     ],
-    // Parenthetical expressions. Note that the **Parenthetical** is a **Value**,
-    // not an **Expression**, so if you need to use an expression in a place
-    // where only values are accepted, wrapping it in parentheses will always do
-    // the trick.
-    Parenthetical: [o("( Expression )", function() {
+    Parenthetical: [
+      o("( Line )", function() {
         return new ParentheticalNode($2);
       })
     ],
-    // A language extension to CoffeeScript from the outside. We simply pass
-    // it through unaltered.
-    Extension: [o("EXTENSION", function() {
-        return yytext;
-      })
-    ],
-    // The condition portion of a while loop.
-    WhileSource: [o("WHILE Expression", function() {
+    WhileSource: [
+      o("WHILE Expression", function() {
         return new WhileNode($2);
       }), o("WHILE Expression WHEN Expression", function() {
         return new WhileNode($2, {
-          filter: $4
+          guard: $4
+        });
+      }), o("UNTIL Expression", function() {
+        return new WhileNode($2, {
+          invert: true
+        });
+      }), o("UNTIL Expression WHEN Expression", function() {
+        return new WhileNode($2, {
+          invert: true,
+          guard: $4
         });
       })
     ],
-    // The while loop can either be normal, with a block of expressions to execute,
-    // or postfix, with a single expression. There is no do..while.
-    While: [o("WhileSource Block", function() {
-        return $1.add_body($2);
+    While: [
+      o("WhileSource Block", function() {
+        return $1.addBody($2);
+      }), o("Statement WhileSource", function() {
+        return $2.addBody(Expressions.wrap([$1]));
       }), o("Expression WhileSource", function() {
-        return $2.add_body(Expressions.wrap([$1]));
+        return $2.addBody(Expressions.wrap([$1]));
+      }), o("Loop", function() {
+        return $1;
       })
     ],
-    // Array, object, and range comprehensions, at the most generic level.
-    // Comprehensions can either be normal, with a block of expressions to execute,
-    // or postfix, with a single expression.
-    For: [o("Expression FOR ForVariables ForSource", function() {
+    Loop: [
+      o("LOOP Block", function() {
+        return new WhileNode(new LiteralNode('true')).addBody($2);
+      }), o("LOOP Expression", function() {
+        return new WhileNode(new LiteralNode('true')).addBody(Expressions.wrap([$2]));
+      })
+    ],
+    For: [
+      o("Statement FOR ForVariables ForSource", function() {
+        return new ForNode($1, $4, $3[0], $3[1]);
+      }), o("Expression FOR ForVariables ForSource", function() {
         return new ForNode($1, $4, $3[0], $3[1]);
       }), o("FOR ForVariables ForSource Block", function() {
         return new ForNode($4, $3, $2[0], $2[1]);
       })
     ],
-    // An array or range comprehension has variables for the current element and
-    // (optional) reference to the current index. Or, *key, value*, in the case
-    // of object comprehensions.
-    ForVariables: [o("Identifier", function() {
+    ForValue: [
+      o("Identifier"), o("Array", function() {
+        return new ValueNode($1);
+      }), o("Object", function() {
+        return new ValueNode($1);
+      })
+    ],
+    ForVariables: [
+      o("ForValue", function() {
         return [$1];
-      }), o("Identifier , Identifier", function() {
+      }), o("ForValue , ForValue", function() {
         return [$1, $3];
       })
     ],
-    // The source of a comprehension is an array or object with an optional filter
-    // clause. If it's an array comprehension, you can also choose to step throug
-    // in fixed-size increments.
-    ForSource: [o("IN Expression", function() {
+    ForSource: [
+      o("IN Expression", function() {
         return {
           source: $2
         };
@@ -435,81 +409,99 @@
           source: $2,
           object: true
         };
-      }), o("ForSource WHEN Expression", function() {
-        $1.filter = $3;
-        return $1;
-      }), o("ForSource BY Expression", function() {
-        $1.step = $3;
-        return $1;
+      }), o("IN Expression WHEN Expression", function() {
+        return {
+          source: $2,
+          guard: $4
+        };
+      }), o("OF Expression WHEN Expression", function() {
+        return {
+          source: $2,
+          guard: $4,
+          object: true
+        };
+      }), o("IN Expression BY Expression", function() {
+        return {
+          source: $2,
+          step: $4
+        };
+      }), o("IN Expression WHEN Expression BY Expression", function() {
+        return {
+          source: $2,
+          guard: $4,
+          step: $6
+        };
+      }), o("IN Expression BY Expression WHEN Expression", function() {
+        return {
+          source: $2,
+          step: $4,
+          guard: $6
+        };
       })
     ],
-    // The CoffeeScript switch/when/else block replaces the JavaScript
-    // switch/case/default by compiling into an if-else chain.
-    Switch: [o("SWITCH Expression INDENT Whens OUTDENT", function() {
-        return $4.rewrite_condition($2);
+    Switch: [
+      o("SWITCH Expression INDENT Whens OUTDENT", function() {
+        return $4.switchesOver($2);
       }), o("SWITCH Expression INDENT Whens ELSE Block OUTDENT", function() {
-        return $4.rewrite_condition($2).add_else($6, true);
+        return $4.switchesOver($2).addElse($6, true);
+      }), o("SWITCH INDENT Whens OUTDENT", function() {
+        return $3;
+      }), o("SWITCH INDENT Whens ELSE Block OUTDENT", function() {
+        return $3.addElse($5, true);
       })
     ],
-    // The inner list of whens is left recursive. At code-generation time, the
-    // IfNode will rewrite them into a proper chain.
-    Whens: [o("When"), o("Whens When", function() {
-        return $1.push($2);
+    Whens: [
+      o("When"), o("Whens When", function() {
+        return $1.addElse($2);
       })
     ],
-    // An individual **When** clause, with action.
-    When: [o("LEADING_WHEN SimpleArgs Block", function() {
-        return new IfNode($2, $3, null, {
+    When: [
+      o("LEADING_WHEN SimpleArgs Block", function() {
+        return new IfNode($2, $3, {
           statement: true
         });
       }), o("LEADING_WHEN SimpleArgs Block TERMINATOR", function() {
-        return new IfNode($2, $3, null, {
+        return new IfNode($2, $3, {
           statement: true
         });
-      }), o("Comment TERMINATOR When", function() {
-        $3.comment = $1;
-        return $3;
       })
     ],
-    // The most basic form of *if* is a condition and an action. The following
-    // if-related rules are broken up along these lines in order to avoid
-    // ambiguity.
-    IfStart: [o("IF Expression Block", function() {
+    IfBlock: [
+      o("IF Expression Block", function() {
         return new IfNode($2, $3);
-      }), o("IfStart ElsIf", function() {
-        return $1.add_else($2);
+      }), o("UNLESS Expression Block", function() {
+        return new IfNode($2, $3, {
+          invert: true
+        });
+      }), o("IfBlock ELSE IF Expression Block", function() {
+        return $1.addElse((new IfNode($4, $5)).forceStatement());
+      }), o("IfBlock ELSE Block", function() {
+        return $1.addElse($3);
       })
     ],
-    // An **IfStart** can optionally be followed by an else block.
-    IfBlock: [o("IfStart"), o("IfStart ELSE Block", function() {
-        return $1.add_else($3);
-      })
-    ],
-    // An *else if* continuation of the *if* expression.
-    ElsIf: [o("ELSE IF Expression Block", function() {
-        return (new IfNode($3, $4)).force_statement();
-      })
-    ],
-    // The full complement of *if* expressions, including postfix one-liner
-    // *if* and *unless*.
-    If: [o("IfBlock"), o("Expression IF Expression", function() {
-        return new IfNode($3, Expressions.wrap([$1]), null, {
+    If: [
+      o("IfBlock"), o("Statement IF Expression", function() {
+        return new IfNode($3, Expressions.wrap([$1]), {
           statement: true
         });
+      }), o("Expression IF Expression", function() {
+        return new IfNode($3, Expressions.wrap([$1]), {
+          statement: true
+        });
+      }), o("Statement UNLESS Expression", function() {
+        return new IfNode($3, Expressions.wrap([$1]), {
+          statement: true,
+          invert: true
+        });
       }), o("Expression UNLESS Expression", function() {
-        return new IfNode($3, Expressions.wrap([$1]), null, {
+        return new IfNode($3, Expressions.wrap([$1]), {
           statement: true,
           invert: true
         });
       })
     ],
-    // Arithmetic and logical operators, working on one or more operands.
-    // Here they are grouped by order of precedence. The actual precedence rules
-    // are defined at the bottom of the page. It would be shorter if we could
-    // combine most of these rules into a single generic *Operand OpSymbol Operand*
-    // -type rule, but in order to make the precedence binding possible, separate
-    // rules are necessary.
-    Operation: [o("! Expression", function() {
+    Operation: [
+      o("! Expression", function() {
         return new OpNode('!', $2);
       }), o("!! Expression", function() {
         return new OpNode('!!', $2);
@@ -573,7 +565,7 @@
         return new OpNode('&&', $1, $3);
       }), o("Expression || Expression", function() {
         return new OpNode('||', $1, $3);
-      }), o("Expression ? Expression", function() {
+      }), o("Expression OP? Expression", function() {
         return new OpNode('?', $1, $3);
       }), o("Expression -= Expression", function() {
         return new OpNode('-=', $1, $3);
@@ -594,53 +586,42 @@
       }), o("Expression INSTANCEOF Expression", function() {
         return new OpNode('instanceof', $1, $3);
       }), o("Expression IN Expression", function() {
+        return new InNode($1, $3);
+      }), o("Expression OF Expression", function() {
         return new OpNode('in', $1, $3);
+      }), o("Expression ! IN Expression", function() {
+        return new OpNode('!', new InNode($1, $4));
+      }), o("Expression ! OF Expression", function() {
+        return new OpNode('!', new ParentheticalNode(new OpNode('in', $1, $4)));
       })
     ]
   };
-  // Precedence
-  // ----------
-  // Operators at the top of this list have higher precedence than the ones lower
-  // down. Following these rules is what makes `2 + 3 * 4` parse as:
-  //     2 + (3 * 4)
-  // And not:
-  //     (2 + 3) * 4
-  operators = [["left", '?'], ["nonassoc", 'UMINUS', 'UPLUS', '!', '!!', '~', '++', '--'], ["left", '*', '/', '%'], ["left", '+', '-'], ["left", '<<', '>>', '>>>'], ["left", '&', '|', '^'], ["left", '<=', '<', '>', '>='], ["right", 'DELETE', 'INSTANCEOF', 'TYPEOF'], ["left", '==', '!='], ["left", '&&', '||'], ["right", '-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?='], ["left", '.'], ["right", 'INDENT'], ["left", 'OUTDENT'], ["right", 'WHEN', 'LEADING_WHEN', 'IN', 'OF', 'BY', 'THROW'], ["right", 'FOR', 'NEW', 'SUPER', 'CLASS'], ["left", 'EXTENDS'], ["right", 'ASSIGN', 'RETURN'], ["right", '->', '=>', '<-', 'UNLESS', 'IF', 'ELSE', 'WHILE']];
-  // Wrapping Up
-  // -----------
-  // Finally, now what we have our **grammar** and our **operators**, we can create
-  // our **Jison.Parser**. We do this by processing all of our rules, recording all
-  // terminals (every symbol which does not appear as the name of a rule above)
-  // as "tokens".
+  operators = [["left", '?'], ["nonassoc", 'UMINUS', 'UPLUS', '!', '!!', '~', '++', '--'], ["left", '*', '/', '%'], ["left", '+', '-'], ["left", '<<', '>>', '>>>'], ["left", '&', '|', '^'], ["left", '<=', '<', '>', '>='], ["right", 'DELETE', 'INSTANCEOF', 'TYPEOF'], ["left", '==', '!='], ["left", '&&', '||', 'OP?'], ["right", '-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?='], ["left", '.'], ["right", 'INDENT'], ["left", 'OUTDENT'], ["right", 'WHEN', 'LEADING_WHEN', 'IN', 'OF', 'BY', 'THROW'], ["right", 'FOR', 'WHILE', 'UNTIL', 'LOOP', 'NEW', 'SUPER', 'CLASS'], ["left", 'EXTENDS'], ["right", 'ASSIGN', 'RETURN'], ["right", '->', '=>', 'UNLESS', 'IF', 'ELSE']];
   tokens = [];
   _a = grammar;
   for (name in _a) { if (__hasProp.call(_a, name)) {
     alternatives = _a[name];
     grammar[name] = (function() {
-      _b = []; _c = alternatives;
-      for (_d = 0, _e = _c.length; _d < _e; _d++) {
-        alt = _c[_d];
+      _b = []; _d = alternatives;
+      for (_c = 0, _e = _d.length; _c < _e; _c++) {
+        alt = _d[_c];
         _b.push((function() {
-          _f = alt[0].split(' ');
-          for (_g = 0, _h = _f.length; _g < _h; _g++) {
-            token = _f[_g];
+          _g = alt[0].split(' ');
+          for (_f = 0, _h = _g.length; _f < _h; _f++) {
+            token = _g[_f];
             if (!(grammar[token])) {
               tokens.push(token);
             }
           }
           if (name === 'Root') {
-            alt[1] = "return " + (alt[1]);
+            alt[1] = ("return " + (alt[1]));
           }
           return alt;
-        }).call(this));
+        })());
       }
       return _b;
-    }).call(this);
+    })();
   }}
-  // Initialize the **Parser** with our list of terminal **tokens**, our **grammar**
-  // rules, and the name of the root. Reverse the operators because Jison orders
-  // precedence from low to high, and we have it high to low
-  // (as in [Yacc](http://dinosaur.compilertools.net/yacc/index.html)).
   exports.parser = new Parser({
     tokens: tokens.join(' '),
     bnf: grammar,

lib/helpers.js

@@ -1,47 +1,50 @@
 (function(){
-  var balanced_string, compact, count, del, extend, flatten, helpers, include, merge, starts;
+  var compact, count, del, extend, flatten, helpers, include, indexOf, merge, starts;
   var __hasProp = Object.prototype.hasOwnProperty;
-  // This file contains the common helper functions that we'd like to share among
-  // the **Lexer**, **Rewriter**, and the **Nodes**. Merge objects, flatten
-  // arrays, count characters, that sort of thing.
-  // Set up exported variables for both **Node.js** and the browser.
-  if (!((typeof process !== "undefined" && process !== null))) {
+  if (!(typeof process !== "undefined" && process !== null)) {
     this.exports = this;
   }
   helpers = (exports.helpers = {});
-  // Does a list include a value?
-  helpers.include = (include = function include(list, value) {
-    return list.indexOf(value) >= 0;
+  helpers.indexOf = (indexOf = function(array, item, from) {
+    var _a, _b, index, other;
+    if (array.indexOf) {
+      return array.indexOf(item, from);
+    }
+    _a = array;
+    for (index = 0, _b = _a.length; index < _b; index++) {
+      other = _a[index];
+      if (other === item && (!from || (from <= index))) {
+        return index;
+      }
+    }
+    return -1;
   });
-  // Peek at the beginning of a given string to see if it matches a sequence.
-  helpers.starts = (starts = function starts(string, literal, start) {
+  helpers.include = (include = function(list, value) {
+    return indexOf(list, value) >= 0;
+  });
+  helpers.starts = (starts = function(string, literal, start) {
     return string.substring(start, (start || 0) + literal.length) === literal;
   });
-  // Trim out all falsy values from an array.
-  helpers.compact = (compact = function compact(array) {
+  helpers.compact = (compact = function(array) {
     var _a, _b, _c, _d, item;
-    _a = []; _b = array;
-    for (_c = 0, _d = _b.length; _c < _d; _c++) {
-      item = _b[_c];
+    _a = []; _c = array;
+    for (_b = 0, _d = _c.length; _b < _d; _b++) {
+      item = _c[_b];
       item ? _a.push(item) : null;
     }
     return _a;
   });
-  // Count the number of occurences of a character in a string.
-  helpers.count = (count = function count(string, letter) {
+  helpers.count = (count = function(string, letter) {
     var num, pos;
     num = 0;
-    pos = string.indexOf(letter);
+    pos = indexOf(string, letter);
     while (pos !== -1) {
       num += 1;
-      pos = string.indexOf(letter, pos + 1);
+      pos = indexOf(string, letter, pos + 1);
     }
     return num;
   });
-  // Merge objects, returning a fresh copy with attributes from both sides.
-  // Used every time `BaseNode#compile` is called, to allow properties in the
-  // options hash to propagate down the tree without polluting other branches.
-  helpers.merge = (merge = function merge(options, overrides) {
+  helpers.merge = (merge = function(options, overrides) {
     var _a, _b, fresh, key, val;
     fresh = {};
     _a = options;
@@ -58,86 +61,29 @@
     }
     return fresh;
   });
-  // Extend a source object with the properties of another object (shallow copy).
-  // We use this to simulate Node's deprecated `process.mixin`
-  helpers.extend = (extend = function extend(object, properties) {
+  helpers.extend = (extend = function(object, properties) {
     var _a, _b, key, val;
     _a = []; _b = properties;
     for (key in _b) { if (__hasProp.call(_b, key)) {
       val = _b[key];
-      _a.push((object[key] = val));
+      _a.push(object[key] = val);
     }}
     return _a;
   });
-  // Return a completely flattened version of an array. Handy for getting a
-  // list of `children` from the nodes.
-  helpers.flatten = (flatten = function flatten(array) {
+  helpers.flatten = (flatten = function(array) {
     var _a, _b, _c, item, memo;
     memo = [];
-    _a = array;
-    for (_b = 0, _c = _a.length; _b < _c; _b++) {
-      item = _a[_b];
+    _b = array;
+    for (_a = 0, _c = _b.length; _a < _c; _a++) {
+      item = _b[_a];
       item instanceof Array ? (memo = memo.concat(item)) : memo.push(item);
     }
     return memo;
   });
-  // Delete a key from an object, returning the value. Useful when a node is
-  // looking for a particular method in an options hash.
-  helpers.del = (del = function del(obj, key) {
+  helpers.del = (del = function(obj, key) {
     var val;
     val = obj[key];
     delete obj[key];
     return val;
   });
-  // Matches a balanced group such as a single or double-quoted string. Pass in
-  // a series of delimiters, all of which must be nested correctly within the
-  // contents of the string. This method allows us to have strings within
-  // interpolations within strings, ad infinitum.
-  helpers.balanced_string = (balanced_string = function balanced_string(str, delimited, options) {
-    var _a, _b, _c, _d, close, i, levels, open, pair, slash;
-    options = options || {};
-    slash = delimited[0][0] === '/';
-    levels = [];
-    i = 0;
-    while (i < str.length) {
-      if (levels.length && starts(str, '\\', i)) {
-        i += 1;
-      } else {
-        _a = delimited;
-        for (_b = 0, _c = _a.length; _b < _c; _b++) {
-          pair = _a[_b];
-          _d = pair;
-          open = _d[0];
-          close = _d[1];
-          if (levels.length && starts(str, close, i) && levels[levels.length - 1] === pair) {
-            levels.pop();
-            i += close.length - 1;
-            if (!(levels.length)) {
-              i += 1;
-            }
-            break;
-          } else if (starts(str, open, i)) {
-            levels.push(pair);
-            i += open.length - 1;
-            break;
-          }
-        }
-      }
-      if (!levels.length || slash && starts(str, '\n', i)) {
-        break;
-      }
-      i += 1;
-    }
-    if (levels.length) {
-      if (slash) {
-        return false;
-      }
-      throw new Error("SyntaxError: Unterminated " + (levels.pop()[0]) + " starting on line " + (this.line + 1));
-    }
-    if (!i) {
-      return false;
-    } else {
-      return str.substring(0, i);
-    }
-  });
 })();

lib/index.js

@@ -0,0 +1,9 @@
+(function(){
+  var _a, key, val;
+  var __hasProp = Object.prototype.hasOwnProperty;
+  _a = require('./coffee-script');
+  for (key in _a) { if (__hasProp.call(_a, key)) {
+    val = _a[key];
+    (exports[key] = val);
+  }}
+})();

lib/lexer.js

@@ -1,317 +1,270 @@
 (function(){
-  var ACCESSORS, ASSIGNMENT, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_KEYWORDS, COMMENT, COMMENT_CLEANER, CONVERSIONS, HALF_ASSIGNMENTS, HEREDOC, HEREDOC_INDENT, IDENTIFIER, INTERPOLATION, JS_CLEANER, JS_FORBIDDEN, JS_KEYWORDS, KEYWORDS, LAST_DENT, LAST_DENTS, LINE_BREAK, Lexer, MULTILINER, MULTI_DENT, NOT_REGEX, NO_NEWLINE, NUMBER, OPERATOR, REGEX_ESCAPE, REGEX_FLAGS, REGEX_INTERPOLATION, REGEX_START, RESERVED, Rewriter, STRING_NEWLINES, WHITESPACE, balanced_string, compact, count, helpers, include, starts;
-  // The CoffeeScript Lexer. Uses a series of token-matching regexes to attempt
-  // matches against the beginning of the source code. When a match is found,
-  // a token is produced, we consume the match, and start again. Tokens are in the
-  // form:
-  //     [tag, value, line_number]
-  // Which is a format that can be fed directly into [Jison](http://github.com/zaach/jison).
-  // Set up the Lexer for both Node.js and the browser, depending on where we are.
-  if ((typeof process !== "undefined" && process !== null)) {
-    Rewriter = require('./rewriter').Rewriter;
-    helpers = require('./helpers').helpers;
+  var ASSIGNED, ASSIGNMENT, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_KEYWORDS, COMMENT, CONVERSIONS, HALF_ASSIGNMENTS, HEREDOC, HEREDOC_INDENT, IDENTIFIER, INTERPOLATION, JS_CLEANER, JS_FORBIDDEN, JS_KEYWORDS, LAST_DENT, LAST_DENTS, LINE_BREAK, Lexer, MULTILINER, MULTI_DENT, NEXT_CHARACTER, NOT_REGEX, NO_NEWLINE, NUMBER, OPERATOR, REGEX_END, REGEX_ESCAPE, REGEX_INTERPOLATION, REGEX_START, RESERVED, Rewriter, STRING_NEWLINES, WHITESPACE, _a, _b, _c, compact, count, helpers, include, starts;
+  var __slice = Array.prototype.slice;
+  if (typeof process !== "undefined" && process !== null) {
+    _a = require('./rewriter');
+    Rewriter = _a.Rewriter;
+    _b = require('./helpers');
+    helpers = _b.helpers;
   } else {
     this.exports = this;
     Rewriter = this.Rewriter;
     helpers = this.helpers;
   }
-  // Import the helpers we need.
-  include = helpers.include;
-  count = helpers.count;
-  starts = helpers.starts;
-  compact = helpers.compact;
-  balanced_string = helpers.balanced_string;
-  // The Lexer Class
-  // ---------------
-  // The Lexer class reads a stream of CoffeeScript and divvys it up into tagged
-  // tokens. Some potential ambiguity in the grammar has been avoided by
-  // pushing some extra smarts into the Lexer.
+  _c = helpers;
+  include = _c.include;
+  count = _c.count;
+  starts = _c.starts;
+  compact = _c.compact;
   exports.Lexer = (function() {
-    Lexer = function Lexer() {    };
-    // **tokenize** is the Lexer's main method. Scan by attempting to match tokens
-    // one at a time, using a regular expression anchored at the start of the
-    // remaining code, or a custom recursive token-matching method
-    // (for interpolations). When the next token has been recorded, we move forward
-    // within the code past the token, and begin again.
-    // Each tokenizing method is responsible for incrementing `@i` by the number of
-    // characters it has consumed. `@i` can be thought of as our finger on the page
-    // of source.
-    // Before returning the token stream, run it through the [Rewriter](rewriter.html)
-    // unless explicitly asked not to.
-    Lexer.prototype.tokenize = function tokenize(code, options) {
+    Lexer = function() {    };
+    Lexer.prototype.tokenize = function(code, options) {
       var o;
       code = code.replace(/(\r|\s+$)/g, '');
       o = options || {};
       this.code = code;
-      // The remainder of the source code.
       this.i = 0;
-      // Current character position we're parsing.
       this.line = o.line || 0;
-      // The current line.
       this.indent = 0;
-      // The current indentation level.
+      this.outdebt = 0;
       this.indents = [];
-      // The stack of all current indentation levels.
       this.tokens = [];
-      // Stream of parsed tokens in the form ['TYPE', value, line]
       while (this.i < this.code.length) {
         this.chunk = this.code.slice(this.i);
-        this.extract_next_token();
+        this.extractNextToken();
       }
-      this.close_indentation();
+      this.closeIndentation();
       if (o.rewrite === false) {
         return this.tokens;
       }
       return (new Rewriter()).rewrite(this.tokens);
     };
-    // At every position, run through this list of attempted matches,
-    // short-circuiting if any of them succeed. Their order determines precedence:
-    // `@literal_token` is the fallback catch-all.
-    Lexer.prototype.extract_next_token = function extract_next_token() {
-      if (this.extension_token()) {
+    Lexer.prototype.extractNextToken = function() {
+      if (this.identifierToken()) {
         return null;
       }
-      if (this.identifier_token()) {
+      if (this.commentToken()) {
         return null;
       }
-      if (this.number_token()) {
+      if (this.whitespaceToken()) {
         return null;
       }
-      if (this.heredoc_token()) {
+      if (this.lineToken()) {
         return null;
       }
-      if (this.regex_token()) {
+      if (this.heredocToken()) {
         return null;
       }
-      if (this.comment_token()) {
+      if (this.stringToken()) {
         return null;
       }
-      if (this.line_token()) {
+      if (this.numberToken()) {
         return null;
       }
-      if (this.whitespace_token()) {
+      if (this.regexToken()) {
         return null;
       }
-      if (this.js_token()) {
+      if (this.jsToken()) {
         return null;
       }
-      if (this.string_token()) {
-        return null;
-      }
-      return this.literal_token();
+      return this.literalToken();
     };
-    // Tokenizers
-    // ----------
-    // Language extensions get the highest priority, first chance to tag tokens
-    // as something else.
-    Lexer.prototype.extension_token = function extension_token() {
-      var _a, _b, _c, extension;
-      _a = Lexer.extensions;
-      for (_b = 0, _c = _a.length; _b < _c; _b++) {
-        extension = _a[_b];
-        if (extension.call(this)) {
-          return true;
-        }
-      }
-      return false;
-    };
-    // Matches identifying literals: variables, keywords, method names, etc.
-    // Check to ensure that JavaScript reserved words aren't being used as
-    // identifiers. Because CoffeeScript reserves a handful of keywords that are
-    // allowed in JavaScript, we're careful not to tag them as keywords when
-    // referenced as property names here, so you can still do `jQuery.is()` even
-    // though `is` means `===` otherwise.
-    Lexer.prototype.identifier_token = function identifier_token() {
-      var accessed, id, tag;
+    Lexer.prototype.identifierToken = function() {
+      var close_index, forcedIdentifier, id, tag;
       if (!(id = this.match(IDENTIFIER, 1))) {
         return false;
       }
-      this.name_access_type();
-      accessed = include(ACCESSORS, this.tag(0));
+      this.i += id.length;
+      forcedIdentifier = this.tagAccessor() || this.match(ASSIGNED, 1);
       tag = 'IDENTIFIER';
-      if (!accessed && include(KEYWORDS, id)) {
+      if (include(JS_KEYWORDS, id) || (!forcedIdentifier && include(COFFEE_KEYWORDS, id))) {
         tag = id.toUpperCase();
       }
-      if (include(RESERVED, id)) {
-        this.identifier_error(id);
-      }
       if (tag === 'WHEN' && include(LINE_BREAK, this.tag())) {
         tag = 'LEADING_WHEN';
       }
-      this.i += id.length;
-      if (!accessed) {
+      if (include(JS_FORBIDDEN, id)) {
+        if (forcedIdentifier) {
+          tag = 'STRING';
+          id = ("'" + id + "'");
+          if (forcedIdentifier === 'accessor') {
+            close_index = true;
+            if (this.tag() !== '@') {
+              this.tokens.pop();
+            }
+            this.token('INDEX_START', '[');
+          }
+        } else if (include(RESERVED, id)) {
+          this.identifierError(id);
+        }
+      }
+      if (!(forcedIdentifier)) {
         if (include(COFFEE_ALIASES, id)) {
           tag = (id = CONVERSIONS[id]);
         }
         if (this.prev() && this.prev()[0] === 'ASSIGN' && include(HALF_ASSIGNMENTS, tag)) {
-          return this.tag_half_assignment(tag);
+          return this.tagHalfAssignment(tag);
         }
       }
       this.token(tag, id);
+      if (close_index) {
+        this.token(']', ']');
+      }
       return true;
     };
-    // Matches numbers, including decimals, hex, and exponential notation.
-    Lexer.prototype.number_token = function number_token() {
+    Lexer.prototype.numberToken = function() {
       var number;
       if (!(number = this.match(NUMBER, 1))) {
         return false;
       }
-      this.token('NUMBER', number);
+      if (this.tag() === '.' && starts(number, '.')) {
+        return false;
+      }
       this.i += number.length;
+      this.token('NUMBER', number);
       return true;
     };
-    // Matches strings, including multi-line strings. Ensures that quotation marks
-    // are balanced within the string's contents, and within nested interpolations.
-    Lexer.prototype.string_token = function string_token() {
+    Lexer.prototype.stringToken = function() {
       var string;
       if (!(starts(this.chunk, '"') || starts(this.chunk, "'"))) {
         return false;
       }
-      if (!(string = this.balanced_token(['"', '"'], ['${', '}']) || this.balanced_token(["'", "'"]))) {
+      if (!(string = this.balancedToken(['"', '"'], ['${', '}']) || this.balancedToken(["'", "'"]))) {
         return false;
       }
-      this.interpolate_string(string.replace(STRING_NEWLINES, " \\\n"));
+      this.interpolateString(string.replace(STRING_NEWLINES, " \\\n"));
       this.line += count(string, "\n");
       this.i += string.length;
       return true;
     };
-    // Matches heredocs, adjusting indentation to the correct level, as heredocs
-    // preserve whitespace, but ignore indentation to the left.
-    Lexer.prototype.heredoc_token = function heredoc_token() {
+    Lexer.prototype.heredocToken = function() {
       var doc, match, quote;
       if (!(match = this.chunk.match(HEREDOC))) {
         return false;
       }
       quote = match[1].substr(0, 1);
-      doc = this.sanitize_heredoc(match[2] || match[4], quote);
-      this.interpolate_string("" + quote + doc + quote);
+      doc = this.sanitizeHeredoc(match[2] || match[4], {
+        quote: quote
+      });
+      this.interpolateString("" + quote + doc + quote);
       this.line += count(match[1], "\n");
       this.i += match[1].length;
       return true;
     };
-    // Matches JavaScript interpolated directly into the source via backticks.
-    Lexer.prototype.js_token = function js_token() {
+    Lexer.prototype.commentToken = function() {
+      var comment, match;
+      if (!(match = this.chunk.match(COMMENT))) {
+        return false;
+      }
+      this.line += count(match[1], "\n");
+      this.i += match[1].length;
+      if (match[2]) {
+        comment = this.sanitizeHeredoc(match[2], {
+          herecomment: true
+        });
+        this.token('HERECOMMENT', comment.split(MULTILINER));
+        this.token('TERMINATOR', '\n');
+      }
+      return true;
+    };
+    Lexer.prototype.jsToken = function() {
       var script;
       if (!(starts(this.chunk, '`'))) {
         return false;
       }
-      if (!(script = this.balanced_token(['`', '`']))) {
+      if (!(script = this.balancedToken(['`', '`']))) {
         return false;
       }
       this.token('JS', script.replace(JS_CLEANER, ''));
       this.i += script.length;
       return true;
     };
-    // Matches regular expression literals. Lexing regular expressions is difficult
-    // to distinguish from division, so we borrow some basic heuristics from
-    // JavaScript and Ruby, borrow slash balancing from `@balanced_token`, and
-    // borrow interpolation from `@interpolate_string`.
-    Lexer.prototype.regex_token = function regex_token() {
-      var flags, regex, str;
+    Lexer.prototype.regexToken = function() {
+      var end, flags, regex, str;
       if (!(this.chunk.match(REGEX_START))) {
         return false;
       }
       if (include(NOT_REGEX, this.tag())) {
         return false;
       }
-      if (!(regex = this.balanced_token(['/', '/']))) {
+      if (!(regex = this.balancedToken(['/', '/']))) {
         return false;
       }
-      regex += (flags = this.chunk.substr(regex.length).match(REGEX_FLAGS));
+      if (!(end = this.chunk.substr(regex.length).match(REGEX_END))) {
+        return false;
+      }
+      if (end[2]) {
+        regex += (flags = end[2]);
+      }
       if (regex.match(REGEX_INTERPOLATION)) {
         str = regex.substring(1).split('/')[0];
         str = str.replace(REGEX_ESCAPE, function(escaped) {
           return '\\' + escaped;
         });
         this.tokens = this.tokens.concat([['(', '('], ['NEW', 'new'], ['IDENTIFIER', 'RegExp'], ['CALL_START', '(']]);
-        this.interpolate_string("\"" + str + "\"", true);
-        this.tokens = this.tokens.concat([[',', ','], ['STRING', "\"" + flags + "\""], [')', ')'], [')', ')']]);
+        this.interpolateString(("\"" + str + "\""), true);
+        this.tokens = this.tokens.concat([[',', ','], ['STRING', ("\"" + flags + "\"")], [')', ')'], [')', ')']]);
       } else {
         this.token('REGEX', regex);
       }
       this.i += regex.length;
       return true;
     };
-    // Matches a token in which which the passed delimiter pairs must be correctly
-    // balanced (ie. strings, JS literals).
-    Lexer.prototype.balanced_token = function balanced_token() {
+    Lexer.prototype.balancedToken = function() {
       var delimited;
-      delimited = Array.prototype.slice.call(arguments, 0, arguments.length - 0);
-      return balanced_string(this.chunk, delimited);
+      var _d = arguments.length, _e = _d >= 1;
+      delimited = __slice.call(arguments, 0, _d - 0);
+      return this.balancedString(this.chunk, delimited);
     };
-    // Matches and conumes comments. We pass through comments into JavaScript,
-    // so they're treated as real tokens, like any other part of the language.
-    Lexer.prototype.comment_token = function comment_token() {
-      var comment, i, lines;
-      if (!(comment = this.match(COMMENT, 1))) {
-        return false;
-      }
-      this.line += (comment.match(MULTILINER) || []).length;
-      lines = compact(comment.replace(COMMENT_CLEANER, '').split(MULTILINER));
-      i = this.tokens.length - 1;
-      if (this.unfinished()) {
-        while (this.tokens[i] && !include(LINE_BREAK, this.tokens[i][0])) {
-          i -= 1;
-        }
-      }
-      this.tokens.splice(i + 1, 0, ['COMMENT', lines, this.line], ['TERMINATOR', '\n', this.line]);
-      this.i += comment.length;
-      return true;
-    };
-    // Matches newlines, indents, and outdents, and determines which is which.
-    // If we can detect that the current line is continued onto the the next line,
-    // then the newline is suppressed:
-    //     elements
-    //       .each( ... )
-    //       .map( ... )
-    // Keeps track of the level of indentation, because a single outdent token
-    // can close multiple indents, so we need to know how far in we happen to be.
-    Lexer.prototype.line_token = function line_token() {
-      var diff, indent, next_character, no_newlines, prev, size;
+    Lexer.prototype.lineToken = function() {
+      var diff, indent, nextCharacter, noNewlines, prev, size;
       if (!(indent = this.match(MULTI_DENT, 1))) {
         return false;
       }
-      this.line += indent.match(MULTILINER).length;
+      this.line += count(indent, "\n");
       this.i += indent.length;
       prev = this.prev(2);
       size = indent.match(LAST_DENTS).reverse()[0].match(LAST_DENT)[1].length;
-      next_character = this.chunk.match(MULTI_DENT)[4];
-      no_newlines = next_character === '.' || this.unfinished();
+      nextCharacter = this.match(NEXT_CHARACTER, 1);
+      noNewlines = nextCharacter === '.' || nextCharacter === ',' || this.unfinished();
       if (size === this.indent) {
-        if (no_newlines) {
-          return this.suppress_newlines();
+        if (noNewlines) {
+          return this.suppressNewlines();
         }
-        return this.newline_token(indent);
+        return this.newlineToken(indent);
       } else if (size > this.indent) {
-        if (no_newlines) {
-          return this.suppress_newlines();
+        if (noNewlines) {
+          return this.suppressNewlines();
         }
         diff = size - this.indent;
         this.token('INDENT', diff);
         this.indents.push(diff);
       } else {
-        this.outdent_token(this.indent - size, no_newlines);
+        this.outdentToken(this.indent - size, noNewlines);
       }
       this.indent = size;
       return true;
     };
-    // Record an outdent token or multiple tokens, if we happen to be moving back
-    // inwards past several recorded indents.
-    Lexer.prototype.outdent_token = function outdent_token(move_out, no_newlines) {
-      var last_indent;
-      while (move_out > 0 && this.indents.length) {
-        last_indent = this.indents.pop();
-        this.token('OUTDENT', last_indent);
-        move_out -= last_indent;
+    Lexer.prototype.outdentToken = function(moveOut, noNewlines) {
+      var lastIndent;
+      if (moveOut > -this.outdebt) {
+        while (moveOut > 0 && this.indents.length) {
+          lastIndent = this.indents.pop();
+          this.token('OUTDENT', lastIndent);
+          moveOut -= lastIndent;
+        }
+      } else {
+        this.outdebt += moveOut;
       }
-      if (!(this.tag() === 'TERMINATOR' || no_newlines)) {
+      if (!(noNewlines)) {
+        this.outdebt = moveOut;
+      }
+      if (!(this.tag() === 'TERMINATOR' || noNewlines)) {
         this.token('TERMINATOR', "\n");
       }
       return true;
     };
-    // Matches and consumes non-meaningful whitespace. Tag the previous token
-    // as being "spaced", because there are some cases where it makes a difference.
-    Lexer.prototype.whitespace_token = function whitespace_token() {
+    Lexer.prototype.whitespaceToken = function() {
       var prev, space;
       if (!(space = this.match(WHITESPACE, 1))) {
         return false;
@@ -323,102 +276,104 @@
       this.i += space.length;
       return true;
     };
-    // Generate a newline token. Consecutive newlines get merged together.
-    Lexer.prototype.newline_token = function newline_token(newlines) {
+    Lexer.prototype.newlineToken = function(newlines) {
       if (!(this.tag() === 'TERMINATOR')) {
         this.token('TERMINATOR', "\n");
       }
       return true;
     };
-    // Use a `\` at a line-ending to suppress the newline.
-    // The slash is removed here once its job is done.
-    Lexer.prototype.suppress_newlines = function suppress_newlines() {
+    Lexer.prototype.suppressNewlines = function() {
       if (this.value() === "\\") {
         this.tokens.pop();
       }
       return true;
     };
-    // We treat all other single characters as a token. Eg.: `( ) , . !`
-    // Multi-character operators are also literal tokens, so that Jison can assign
-    // the proper order of operations. There are some symbols that we tag specially
-    // here. `;` and newlines are both treated as a `TERMINATOR`, we distinguish
-    // parentheses that indicate a method call from regular parentheses, and so on.
-    Lexer.prototype.literal_token = function literal_token() {
-      var match, prev_spaced, space, tag, value;
+    Lexer.prototype.literalToken = function() {
+      var match, prevSpaced, space, tag, value;
       match = this.chunk.match(OPERATOR);
       value = match && match[1];
       space = match && match[2];
       if (value && value.match(CODE)) {
-        this.tag_parameters();
+        this.tagParameters();
       }
       value = value || this.chunk.substr(0, 1);
-      prev_spaced = this.prev() && this.prev().spaced;
+      prevSpaced = this.prev() && this.prev().spaced;
       tag = value;
       if (value.match(ASSIGNMENT)) {
         tag = 'ASSIGN';
         if (include(JS_FORBIDDEN, this.value)) {
-          this.assignment_error();
+          this.assignmentError();
         }
       } else if (value === ';') {
         tag = 'TERMINATOR';
-      } else if (value === '[' && this.tag() === '?' && !prev_spaced) {
-        tag = 'SOAKED_INDEX_START';
-        this.soaked_index = true;
-        this.tokens.pop();
-      } else if (value === ']' && this.soaked_index) {
-        tag = 'SOAKED_INDEX_END';
-        this.soaked_index = false;
-      } else if (include(CALLABLE, this.tag()) && !prev_spaced) {
+      } else if (value === '?' && prevSpaced) {
+        tag = 'OP?';
+      } else if (include(CALLABLE, this.tag()) && !prevSpaced) {
         if (value === '(') {
           tag = 'CALL_START';
-        }
-        if (value === '[') {
+        } else if (value === '[') {
           tag = 'INDEX_START';
+          if (this.tag() === '?') {
+            this.tag(1, 'INDEX_SOAK');
+          }
+          if (this.tag() === '::') {
+            this.tag(1, 'INDEX_PROTO');
+          }
         }
       }
       this.i += value.length;
-      if (space && prev_spaced && this.prev()[0] === 'ASSIGN' && include(HALF_ASSIGNMENTS, tag)) {
-        return this.tag_half_assignment(tag);
+      if (space && prevSpaced && this.prev()[0] === 'ASSIGN' && include(HALF_ASSIGNMENTS, tag)) {
+        return this.tagHalfAssignment(tag);
       }
       this.token(tag, value);
       return true;
     };
-    // Token Manipulators
-    // ------------------
-    // As we consume a new `IDENTIFIER`, look at the previous token to determine
-    // if it's a special kind of accessor.
-    Lexer.prototype.name_access_type = function name_access_type() {
-      if (this.value() === '::') {
-        this.tag(1, 'PROTOTYPE_ACCESS');
+    Lexer.prototype.tagAccessor = function() {
+      var accessor, prev;
+      if ((!(prev = this.prev())) || (prev && prev.spaced)) {
+        return false;
       }
-      if (this.value() === '.' && !(this.value(2) === '.')) {
-        if (this.tag(2) === '?') {
-          this.tag(1, 'SOAK_ACCESS');
-          return this.tokens.splice(-2, 1);
+      accessor = (function() {
+        if (prev[1] === '::') {
+          return this.tag(1, 'PROTOTYPE_ACCESS');
+        } else if (prev[1] === '.' && !(this.value(2) === '.')) {
+          if (this.tag(2) === '?') {
+            this.tag(1, 'SOAK_ACCESS');
+            return this.tokens.splice(-2, 1);
+          } else {
+            return this.tag(1, 'PROPERTY_ACCESS');
+          }
         } else {
-          return this.tag(1, 'PROPERTY_ACCESS');
+          return prev[0] === '@';
+        }
+      }).call(this);
+      return accessor ? 'accessor' : false;
+    };
+    Lexer.prototype.sanitizeHeredoc = function(doc, options) {
+      var _d, attempt, indent, match;
+      while (match = HEREDOC_INDENT.exec(doc)) {
+        attempt = (typeof (_d = match[2]) !== "undefined" && _d !== null) ? match[2] : match[3];
+        if (!indent || attempt.length < indent.length) {
+          indent = attempt;
         }
       }
+      doc = doc.replace(new RegExp("^" + indent, 'gm'), '');
+      if (options.herecomment) {
+        return doc;
+      }
+      return doc.replace(MULTILINER, "\\n").replace(new RegExp(options.quote, 'g'), ("\\" + options.quote));
     };
-    // Sanitize a heredoc by escaping internal double quotes and erasing all
-    // external indentation on the left-hand side.
-    Lexer.prototype.sanitize_heredoc = function sanitize_heredoc(doc, quote) {
-      var indent;
-      indent = (doc.match(HEREDOC_INDENT) || ['']).sort()[0];
-      return doc.replace(new RegExp("^" + indent, 'gm'), '').replace(MULTILINER, "\\n").replace(new RegExp(quote, 'g'), '\\"');
-    };
-    // Tag a half assignment.
-    Lexer.prototype.tag_half_assignment = function tag_half_assignment(tag) {
+    Lexer.prototype.tagHalfAssignment = function(tag) {
       var last;
+      if (tag === 'OP?') {
+        tag = '?';
+      }
       last = this.tokens.pop();
-      this.tokens.push(["" + tag + "=", "" + tag + "=", last[2]]);
+      this.tokens.push([("" + tag + "="), ("" + tag + "="), last[2]]);
       return true;
     };
-    // A source of ambiguity in our grammar used to be parameter lists in function
-    // definitions versus argument lists in function calls. Walk backwards, tagging
-    // parameters specially in order to make things easier for the parser.
-    Lexer.prototype.tag_parameters = function tag_parameters() {
-      var _a, i, tok;
+    Lexer.prototype.tagParameters = function() {
+      var _d, i, tok;
       if (this.tag() !== ')') {
         return null;
       }
@@ -429,79 +384,115 @@
         if (!tok) {
           return null;
         }
-        if ((_a = tok[0]) === 'IDENTIFIER') {
+        if ((_d = tok[0]) === 'IDENTIFIER') {
           tok[0] = 'PARAM';
-        } else if (_a === ')') {
+        } else if (_d === ')') {
           tok[0] = 'PARAM_END';
-        } else if (_a === '(') {
-          return (tok[0] = 'PARAM_START');
+        } else if (_d === '(' || _d === 'CALL_START') {
+          tok[0] = 'PARAM_START';
+          return tok[0];
         }
       }
       return true;
     };
-    // Close up all remaining open blocks at the end of the file.
-    Lexer.prototype.close_indentation = function close_indentation() {
-      return this.outdent_token(this.indent);
+    Lexer.prototype.closeIndentation = function() {
+      return this.outdentToken(this.indent);
     };
-    // The error for when you try to use a forbidden word in JavaScript as
-    // an identifier.
-    Lexer.prototype.identifier_error = function identifier_error(word) {
-      throw new Error("SyntaxError: Reserved word \"" + word + "\" on line " + (this.line + 1));
+    Lexer.prototype.identifierError = function(word) {
+      throw new Error(("SyntaxError: Reserved word \"" + word + "\" on line " + (this.line + 1)));
     };
-    // The error for when you try to assign to a reserved word in JavaScript,
-    // like "function" or "default".
-    Lexer.prototype.assignment_error = function assignment_error() {
-      throw new Error("SyntaxError: Reserved word \"" + (this.value()) + "\" on line " + (this.line + 1) + " can't be assigned");
+    Lexer.prototype.assignmentError = function() {
+      throw new Error(("SyntaxError: Reserved word \"" + (this.value()) + "\" on line " + (this.line + 1) + " can't be assigned"));
     };
-    // Expand variables and expressions inside double-quoted strings using
-    // [ECMA Harmony's interpolation syntax](http://wiki.ecmascript.org/doku.php?id=strawman:string_interpolation)
-    // for substitution of bare variables as well as arbitrary expressions.
-    //     "Hello $name."
-    //     "Hello ${name.capitalize()}."
-    // If it encounters an interpolation, this method will recursively create a
-    // new Lexer, tokenize the interpolated contents, and merge them into the
-    // token stream.
-    Lexer.prototype.interpolate_string = function interpolate_string(str, escape_quotes) {
-      var _a, _b, _c, _d, _e, escaped, expr, group, i, inner, interp, lexer, match, nested, pi, quote, tag, token, tokens, value;
+    Lexer.prototype.balancedString = function(str, delimited, options) {
+      var _d, _e, _f, _g, close, i, levels, open, pair, slash;
+      options = options || {};
+      slash = delimited[0][0] === '/';
+      levels = [];
+      i = 0;
+      while (i < str.length) {
+        if (levels.length && starts(str, '\\', i)) {
+          i += 1;
+        } else {
+          _e = delimited;
+          for (_d = 0, _f = _e.length; _d < _f; _d++) {
+            pair = _e[_d];
+            _g = pair;
+            open = _g[0];
+            close = _g[1];
+            if (levels.length && starts(str, close, i) && levels[levels.length - 1] === pair) {
+              levels.pop();
+              i += close.length - 1;
+              if (!(levels.length)) {
+                i += 1;
+              }
+              break;
+            } else if (starts(str, open, i)) {
+              levels.push(pair);
+              i += open.length - 1;
+              break;
+            }
+          }
+        }
+        if (!levels.length || slash && starts(str, '\n', i)) {
+          break;
+        }
+        i += 1;
+      }
+      if (levels.length) {
+        if (slash) {
+          return false;
+        }
+        throw new Error(("SyntaxError: Unterminated " + (levels.pop()[0]) + " starting on line " + (this.line + 1)));
+      }
+      return !i ? false : str.substring(0, i);
+    };
+    Lexer.prototype.interpolateString = function(str, escapeQuotes) {
+      var _d, _e, _f, _g, _h, _i, _j, escaped, expr, group, i, idx, inner, interp, interpolated, lexer, match, nested, pi, quote, tag, tok, token, tokens, value;
       if (str.length < 3 || !starts(str, '"')) {
         return this.token('STRING', str);
       } else {
         lexer = new Lexer();
         tokens = [];
         quote = str.substring(0, 1);
-        _a = [1, 1];
-        i = _a[0];
-        pi = _a[1];
+        _d = [1, 1];
+        i = _d[0];
+        pi = _d[1];
         while (i < str.length - 1) {
           if (starts(str, '\\', i)) {
             i += 1;
           } else if ((match = str.substring(i).match(INTERPOLATION))) {
-            _b = match;
-            group = _b[0];
-            interp = _b[1];
+            _e = match;
+            group = _e[0];
+            interp = _e[1];
             if (starts(interp, '@')) {
-              interp = "this." + (interp.substring(1));
+              interp = ("this." + (interp.substring(1)));
             }
             if (pi < i) {
-              tokens.push(['STRING', "" + quote + (str.substring(pi, i)) + quote]);
+              tokens.push(['STRING', ("" + quote + (str.substring(pi, i)) + quote)]);
             }
             tokens.push(['IDENTIFIER', interp]);
             i += group.length - 1;
             pi = i + 1;
-          } else if ((expr = balanced_string(str.substring(i), [['${', '}']]))) {
+          } else if ((expr = this.balancedString(str.substring(i), [['${', '}']]))) {
             if (pi < i) {
-              tokens.push(['STRING', "" + quote + (str.substring(pi, i)) + quote]);
+              tokens.push(['STRING', ("" + quote + (str.substring(pi, i)) + quote)]);
             }
             inner = expr.substring(2, expr.length - 1);
             if (inner.length) {
-              nested = lexer.tokenize("(" + inner + ")", {
-                rewrite: false,
+              inner = inner.replace(new RegExp('\\\\' + quote, 'g'), quote);
+              nested = lexer.tokenize(("(" + inner + ")"), {
                 line: this.line
               });
+              _f = nested;
+              for (idx = 0, _g = _f.length; idx < _g; idx++) {
+                tok = _f[idx];
+                tok[0] === 'CALL_END' ? (tok[0] = ')') : null;
+              }
               nested.pop();
               tokens.push(['TOKENS', nested]);
             } else {
-              tokens.push(['STRING', "" + quote + quote]);
+              tokens.push(['STRING', ("" + quote + quote)]);
             }
             i += expr.length - 1;
             pi = i + 1;
@@ -509,22 +500,26 @@
           i += 1;
         }
         if (pi < i && pi < str.length - 1) {
-          tokens.push(['STRING', "" + quote + (str.substring(pi, i)) + quote]);
+          tokens.push(['STRING', ("" + quote + (str.substring(pi, i)) + quote)]);
         }
         if (!(tokens[0][0] === 'STRING')) {
           tokens.unshift(['STRING', '""']);
         }
-        _c = tokens;
-        for (i = 0, _d = _c.length; i < _d; i++) {
-          token = _c[i];
-          _e = token;
-          tag = _e[0];
-          value = _e[1];
+        interpolated = tokens.length > 1;
+        if (interpolated) {
+          this.token('(', '(');
+        }
+        _h = tokens;
+        for (i = 0, _i = _h.length; i < _i; i++) {
+          token = _h[i];
+          _j = token;
+          tag = _j[0];
+          value = _j[1];
           if (tag === 'TOKENS') {
             this.tokens = this.tokens.concat(value);
-          } else if (tag === 'STRING' && escape_quotes) {
+          } else if (tag === 'STRING' && escapeQuotes) {
             escaped = value.substring(1, value.length - 1).replace(/"/g, '\\"');
-            this.token(tag, "\"" + escaped + "\"");
+            this.token(tag, ("\"" + escaped + "\""));
           } else {
             this.token(tag, value);
           }
@@ -532,126 +527,86 @@
             this.token('+', '+');
           }
         }
+        if (interpolated) {
+          this.token(')', ')');
+        }
         return tokens;
       }
     };
-    // Helpers
-    // -------
-    // Add a token to the results, taking note of the line number.
-    Lexer.prototype.token = function token(tag, value) {
+    Lexer.prototype.token = function(tag, value) {
       return this.tokens.push([tag, value, this.line]);
     };
-    // Peek at a tag in the current token stream.
-    Lexer.prototype.tag = function tag(index, tag) {
+    Lexer.prototype.tag = function(index, newTag) {
       var tok;
       if (!(tok = this.prev(index))) {
         return null;
       }
-      if ((typeof tag !== "undefined" && tag !== null)) {
-        return (tok[0] = tag);
+      if (typeof newTag !== "undefined" && newTag !== null) {
+        tok[0] = newTag;
+        return tok[0];
       }
       return tok[0];
     };
-    // Peek at a value in the current token stream.
-    Lexer.prototype.value = function value(index, val) {
+    Lexer.prototype.value = function(index, val) {
       var tok;
       if (!(tok = this.prev(index))) {
         return null;
       }
-      if ((typeof val !== "undefined" && val !== null)) {
-        return (tok[1] = val);
+      if (typeof val !== "undefined" && val !== null) {
+        tok[1] = val;
+        return tok[1];
       }
       return tok[1];
     };
-    // Peek at a previous token, entire.
-    Lexer.prototype.prev = function prev(index) {
+    Lexer.prototype.prev = function(index) {
       return this.tokens[this.tokens.length - (index || 1)];
     };
-    // Attempt to match a string against the current chunk, returning the indexed
-    // match if successful, and `false` otherwise.
-    Lexer.prototype.match = function match(regex, index) {
+    Lexer.prototype.match = function(regex, index) {
       var m;
       if (!(m = this.chunk.match(regex))) {
         return false;
       }
-      if (m) {
-        return m[index];
-      } else {
-        return false;
-      }
+      return m ? m[index] : false;
     };
-    // Are we in the midst of an unfinished expression?
-    Lexer.prototype.unfinished = function unfinished() {
+    Lexer.prototype.unfinished = function() {
       var prev;
       prev = this.prev(2);
       return this.value() && this.value().match && this.value().match(NO_NEWLINE) && prev && (prev[0] !== '.') && !this.value().match(CODE);
     };
     return Lexer;
-  }).call(this);
-  // There are no exensions to the core lexer by default.
-  Lexer.extensions = [];
-  // Constants
-  // ---------
-  // Keywords that CoffeeScript shares in common with JavaScript.
-  JS_KEYWORDS = ["if", "else", "true", "false", "new", "return", "try", "catch", "finally", "throw", "break", "continue", "for", "in", "while", "delete", "instanceof", "typeof", "switch", "super", "extends", "class"];
-  // CoffeeScript-only keywords, which we're more relaxed about allowing. They can't
-  // be used standalone, but you can reference them as an attached property.
+  })();
+  JS_KEYWORDS = ["if", "else", "true", "false", "new", "return", "try", "catch", "finally", "throw", "break", "continue", "for", "in", "while", "delete", "instanceof", "typeof", "switch", "super", "extends", "class", "this", "null"];
   COFFEE_ALIASES = ["and", "or", "is", "isnt", "not"];
-  COFFEE_KEYWORDS = COFFEE_ALIASES.concat(["then", "unless", "yes", "no", "on", "off", "of", "by", "where", "when"]);
-  // The combined list of keywords is the superset that gets passed verbatim to
-  // the parser.
-  KEYWORDS = JS_KEYWORDS.concat(COFFEE_KEYWORDS);
-  // The list of keywords that are reserved by JavaScript, but not used, or are
-  // used by CoffeeScript internally. We throw an error when these are encountered,
-  // to avoid having a JavaScript error at runtime.
-  RESERVED = ["case", "default", "do", "function", "var", "void", "with", "const", "let", "debugger", "enum", "export", "import", "native", "__extends", "__hasProp"];
-  // The superset of both JavaScript keywords and reserved words, none of which may
-  // be used as identifiers or properties.
+  COFFEE_KEYWORDS = COFFEE_ALIASES.concat(["then", "unless", "until", "loop", "yes", "no", "on", "off", "of", "by", "where", "when"]);
+  RESERVED = ["case", "default", "do", "function", "var", "void", "with", "const", "let", "enum", "export", "import", "native"];
   JS_FORBIDDEN = JS_KEYWORDS.concat(RESERVED);
-  // Token matching regexes.
   IDENTIFIER = /^([a-zA-Z\$_](\w|\$)*)/;
-  NUMBER = /^(\b((0(x|X)[0-9a-fA-F]+)|([0-9]+(\.[0-9]+)?(e[+\-]?[0-9]+)?)))\b/i;
+  NUMBER = /^(((\b0(x|X)[0-9a-fA-F]+)|((\b[0-9]+(\.[0-9]+)?|\.[0-9]+)(e[+\-]?[0-9]+)?)))\b/i;
   HEREDOC = /^("{6}|'{6}|"{3}\n?([\s\S]*?)\n?([ \t]*)"{3}|'{3}\n?([\s\S]*?)\n?([ \t]*)'{3})/;
   INTERPOLATION = /^\$([a-zA-Z_@]\w*(\.\w+)*)/;
-  OPERATOR = /^([+\*&|\/\-%=<>:!?]+)([ \t]*)/;
+  OPERATOR = /^(-[\-=>]?|\+[+=]?|[*&|\/%=<>:!?]+)([ \t]*)/;
   WHITESPACE = /^([ \t]+)/;
-  COMMENT = /^(((\n?[ \t]*)?#[^\n]*)+)/;
+  COMMENT = /^(\s*#{3}(?!#)[ \t]*\n+([\s\S]*?)[ \t]*\n+[ \t]*#{3}|(\s*#(?!##[^#])[^\n]*)+)/;
   CODE = /^((-|=)>)/;
   MULTI_DENT = /^((\n([ \t]*))+)(\.)?/;
   LAST_DENTS = /\n([ \t]*)/g;
   LAST_DENT = /\n([ \t]*)/;
-  ASSIGNMENT = /^(:|=)$/;
-  // Regex-matching-regexes.
+  ASSIGNMENT = /^[:=]$/;
   REGEX_START = /^\/[^\/ ]/;
   REGEX_INTERPOLATION = /([^\\]\$[a-zA-Z_@]|[^\\]\$\{.*[^\\]\})/;
-  REGEX_FLAGS = /^[imgy]{0,4}/;
+  REGEX_END = /^(([imgy]{1,4})\b|\W|$)/;
   REGEX_ESCAPE = /\\[^\$]/g;
-  // Token cleaning regexes.
   JS_CLEANER = /(^`|`$)/g;
   MULTILINER = /\n/g;
   STRING_NEWLINES = /\n[ \t]*/g;
-  COMMENT_CLEANER = /(^[ \t]*#|\n[ \t]*$)/mg;
   NO_NEWLINE = /^([+\*&|\/\-%=<>:!.\\][<>=&|]*|and|or|is|isnt|not|delete|typeof|instanceof)$/;
-  HEREDOC_INDENT = /^[ \t]+/mg;
-  // Tokens which a regular expression will never immediately follow, but which
-  // a division operator might.
-  // See: http://www.mozilla.org/js/language/js20-2002-04/rationale/syntax.html#regular-expressions
-  // Our list is shorter, due to sans-parentheses method calls.
-  NOT_REGEX = ['NUMBER', 'REGEX', '++', '--', 'FALSE', 'NULL', 'TRUE'];
-  // Tokens which could legitimately be invoked or indexed. A opening
-  // parentheses or bracket following these tokens will be recorded as the start
-  // of a function invocation or indexing operation.
-  CALLABLE = ['IDENTIFIER', 'SUPER', ')', ']', '}', 'STRING', '@'];
-  // Tokens that indicate an access -- keywords immediately following will be
-  // treated as identifiers.
-  ACCESSORS = ['PROPERTY_ACCESS', 'PROTOTYPE_ACCESS', 'SOAK_ACCESS', '@'];
-  // Tokens that, when immediately preceding a `WHEN`, indicate that the `WHEN`
-  // occurs at the start of a line. We disambiguate these from trailing whens to
-  // avoid an ambiguity in the grammar.
+  HEREDOC_INDENT = /(\n+([ \t]*)|^([ \t]+))/g;
+  ASSIGNED = /^([a-zA-Z\$_]\w*[ \t]*?[:=][^=])/;
+  NEXT_CHARACTER = /^\s*(\S)/;
+  NOT_REGEX = ['NUMBER', 'REGEX', '++', '--', 'FALSE', 'NULL', 'TRUE', ']'];
+  CALLABLE = ['IDENTIFIER', 'SUPER', ')', ']', '}', 'STRING', '@', 'THIS', '?', '::'];
   LINE_BREAK = ['INDENT', 'OUTDENT', 'TERMINATOR'];
-  // Half-assignments...
-  HALF_ASSIGNMENTS = ['-', '+', '/', '*', '%', '||', '&&', '?'];
-  // Conversions from CoffeeScript operators into JavaScript ones.
+  HALF_ASSIGNMENTS = ['-', '+', '/', '*', '%', '||', '&&', '?', 'OP?'];
   CONVERSIONS = {
     'and': '&&',
     'or': '||',

lib/optparse.js

@@ -1,126 +1,106 @@
 (function(){
-  var LONG_FLAG, MULTI_FLAG, OPTIONAL, OptionParser, SHORT_FLAG, build_rule, build_rules, normalize_arguments;
-  // A simple **OptionParser** class to parse option flags from the command-line.
-  // Use it like so:
-  //     parser:  new OptionParser switches, help_banner
-  //     options: parser.parse process.argv
+  var LONG_FLAG, MULTI_FLAG, OPTIONAL, OptionParser, SHORT_FLAG, buildRule, buildRules, normalizeArguments;
   exports.OptionParser = (function() {
-    OptionParser = function OptionParser(rules, banner) {
+    OptionParser = function(rules, banner) {
       this.banner = banner;
-      this.rules = build_rules(rules);
+      this.rules = buildRules(rules);
       return this;
     };
-    // Initialize with a list of valid options, in the form:
-    //     [short-flag, long-flag, description]
-    // Along with an an optional banner for the usage help.
-    // Parse the list of arguments, populating an `options` object with all of the
-    // specified options, and returning it. `options.arguments` will be an array
-    // containing the remaning non-option arguments. This is a simpler API than
-    // many option parsers that allow you to attach callback actions for every
-    // flag. Instead, you're responsible for interpreting the options object.
-    OptionParser.prototype.parse = function parse(args) {
-      var _a, _b, _c, arg, is_option, matched_rule, options, rule;
+    OptionParser.prototype.parse = function(args) {
+      var _a, _b, _c, _d, _e, arg, i, isOption, matchedRule, options, rule;
       options = {
         arguments: []
       };
-      args = normalize_arguments(args);
-      while (arg = args.shift()) {
-        is_option = !!(arg.match(LONG_FLAG) || arg.match(SHORT_FLAG));
-        matched_rule = false;
-        _a = this.rules;
-        for (_b = 0, _c = _a.length; _b < _c; _b++) {
-          rule = _a[_b];
-          if (rule.short_flag === arg || rule.long_flag === arg) {
-            options[rule.name] = rule.has_argument ? args.shift() : true;
-            matched_rule = true;
+      args = normalizeArguments(args);
+      _a = args;
+      for (i = 0, _b = _a.length; i < _b; i++) {
+        arg = _a[i];
+        isOption = !!(arg.match(LONG_FLAG) || arg.match(SHORT_FLAG));
+        matchedRule = false;
+        _d = this.rules;
+        for (_c = 0, _e = _d.length; _c < _e; _c++) {
+          rule = _d[_c];
+          if (rule.shortFlag === arg || rule.longFlag === arg) {
+            options[rule.name] = rule.hasArgument ? args[i += 1] : true;
+            matchedRule = true;
             break;
           }
         }
-        if (is_option && !matched_rule) {
+        if (isOption && !matchedRule) {
           throw new Error("unrecognized option: " + arg);
         }
-        if (!(is_option)) {
-          options.arguments.push(arg);
+        if (!isOption) {
+          options.arguments = args.slice(i, args.length);
+          break;
         }
       }
       return options;
     };
-    // Return the help text for this **OptionParser**, listing and describing all
-    // of the valid options, for `--help` and such.
-    OptionParser.prototype.help = function help() {
-      var _a, _b, _c, _d, _e, _f, _g, _h, i, let_part, lines, rule, spaces;
+    OptionParser.prototype.help = function() {
+      var _a, _b, _c, _d, i, letPart, lines, rule, spaces;
       lines = ['Available options:'];
       if (this.banner) {
         lines.unshift("" + this.banner + "\n");
       }
-      _a = this.rules;
-      for (_b = 0, _c = _a.length; _b < _c; _b++) {
-        rule = _a[_b];
-        spaces = 15 - rule.long_flag.length;
+      _b = this.rules;
+      for (_a = 0, _c = _b.length; _a < _c; _a++) {
+        rule = _b[_a];
+        spaces = 15 - rule.longFlag.length;
         spaces = spaces > 0 ? (function() {
-          _d = []; _g = 0; _h = spaces;
-          for (_f = 0, i = _g; (_g <= _h ? i <= _h : i >= _h); (_g <= _h ? i += 1 : i -= 1), _f++) {
+          _d = [];
+          for (i = 0; i <= spaces; i += 1) {
             _d.push(' ');
           }
           return _d;
-        }).call(this).join('') : '';
-        let_part = rule.short_flag ? rule.short_flag + ', ' : '    ';
-        lines.push("  " + let_part + (rule.long_flag) + spaces + (rule.description));
+        })().join('') : '';
+        letPart = rule.shortFlag ? rule.shortFlag + ', ' : '    ';
+        lines.push("  " + letPart + rule.longFlag + spaces + rule.description);
       }
       return "\n" + (lines.join('\n')) + "\n";
     };
     return OptionParser;
-  }).call(this);
-  // Helpers
-  // -------
-  // Regex matchers for option flags.
+  })();
   LONG_FLAG = /^(--\w[\w\-]+)/;
   SHORT_FLAG = /^(-\w)/;
   MULTI_FLAG = /^-(\w{2,})/;
   OPTIONAL = /\[(.+)\]/;
-  // Build and return the list of option rules. If the optional *short-flag* is
-  // unspecified, leave it out by padding with `null`.
-  build_rules = function build_rules(rules) {
+  buildRules = function(rules) {
     var _a, _b, _c, _d, tuple;
-    _a = []; _b = rules;
-    for (_c = 0, _d = _b.length; _c < _d; _c++) {
-      tuple = _b[_c];
+    _a = []; _c = rules;
+    for (_b = 0, _d = _c.length; _b < _d; _b++) {
+      tuple = _c[_b];
       _a.push((function() {
         if (tuple.length < 3) {
           tuple.unshift(null);
         }
-        return build_rule.apply(this, tuple);
-      }).call(this));
+        return buildRule.apply(this, tuple);
+      })());
     }
     return _a;
   };
-  // Build a rule from a `-o` short flag, a `--output [DIR]` long flag, and the
-  // description of what the option does.
-  build_rule = function build_rule(short_flag, long_flag, description) {
+  buildRule = function(shortFlag, longFlag, description) {
     var match;
-    match = long_flag.match(OPTIONAL);
-    long_flag = long_flag.match(LONG_FLAG)[1];
+    match = longFlag.match(OPTIONAL);
+    longFlag = longFlag.match(LONG_FLAG)[1];
     return {
-      name: long_flag.substr(2),
-      short_flag: short_flag,
-      long_flag: long_flag,
+      name: longFlag.substr(2),
+      shortFlag: shortFlag,
+      longFlag: longFlag,
       description: description,
-      has_argument: !!(match && match[1])
+      hasArgument: !!(match && match[1])
     };
   };
-  // Normalize arguments by expanding merged flags into multiple flags. This allows
-  // you to have `-wl` be the same as `--watch --lint`.
-  normalize_arguments = function normalize_arguments(args) {
+  normalizeArguments = function(args) {
     var _a, _b, _c, _d, _e, _f, arg, l, match, result;
     args = args.slice(0);
     result = [];
-    _a = args;
-    for (_b = 0, _c = _a.length; _b < _c; _b++) {
-      arg = _a[_b];
+    _b = args;
+    for (_a = 0, _c = _b.length; _a < _c; _a++) {
+      arg = _b[_a];
       if ((match = arg.match(MULTI_FLAG))) {
-        _d = match[1].split('');
-        for (_e = 0, _f = _d.length; _e < _f; _e++) {
-          l = _d[_e];
+        _e = match[1].split('');
+        for (_d = 0, _f = _e.length; _d < _f; _d++) {
+          l = _e[_d];
           result.push('-' + l);
         }
       } else {

lib/repl.js

@@ -1,41 +1,38 @@
 (function(){
-  var CoffeeScript, helpers, prompt, run;
-  // A very simple Read-Eval-Print-Loop. Compiles one line at a time to JavaScript
-  // and evaluates it. Good for simple tests, or poking around the **Node.js** API.
-  // Using it looks like this:
-  //     coffee> puts "$num bottles of beer" for num in [99..1]
-  // Require the **coffee-script** module to get access to the compiler.
+  var CoffeeScript, helpers, readline, repl, run, stdio;
   CoffeeScript = require('./coffee-script');
   helpers = require('./helpers').helpers;
-  // Our prompt.
-  prompt = 'coffee> ';
-  // Quick alias for quitting the REPL.
+  readline = require('readline');
+  stdio = process.openStdin();
   helpers.extend(global, {
-    quit: function quit() {
+    quit: function() {
       return process.exit(0);
     }
   });
-  // The main REPL function. **run** is called every time a line of code is entered.
-  // Attempt to evaluate the command. If there's an exception, print it out instead
-  // of exiting.
-  run = function run(code) {
+  run = function(buffer) {
     var val;
     try {
-      val = CoffeeScript.run(code, {
-        no_wrap: true,
+      val = CoffeeScript.run(buffer.toString(), {
+        noWrap: true,
         globals: true,
         source: 'repl'
       });
       if (val !== undefined) {
-        p(val);
+        puts(inspect(val));
       }
     } catch (err) {
       puts(err.stack || err.toString());
     }
-    return print(prompt);
+    return repl.prompt();
   };
-  // Start up the REPL by opening **stdio** and listening for input.
-  process.stdio.addListener('data', run);
-  process.stdio.open();
-  print(prompt);
+  repl = readline.createInterface(stdio);
+  repl.setPrompt('coffee> ');
+  stdio.addListener('data', function(buffer) {
+    return repl.write(buffer);
+  });
+  repl.addListener('close', function() {
+    return stdio.destroy();
+  });
+  repl.addListener('line', run);
+  repl.prompt();
 })();

lib/rewriter.js

@@ -1,48 +1,30 @@
 (function(){
-  var BALANCED_PAIRS, EXPRESSION_CLOSE, EXPRESSION_END, EXPRESSION_START, IMPLICIT_BLOCK, IMPLICIT_CALL, IMPLICIT_END, IMPLICIT_FUNC, INVERSES, Rewriter, SINGLE_CLOSERS, SINGLE_LINERS, _a, _b, _c, _d, _e, _f, _g, _h, _i, _j, _k, helpers, include, pair;
+  var BALANCED_PAIRS, EXPRESSION_CLOSE, EXPRESSION_END, EXPRESSION_START, IMPLICIT_BLOCK, IMPLICIT_CALL, IMPLICIT_END, IMPLICIT_FUNC, INVERSES, Rewriter, SINGLE_CLOSERS, SINGLE_LINERS, _a, _b, _c, _d, _e, _f, _g, _h, _i, _j, _k, _l, _m, helpers, include, pair;
   var __hasProp = Object.prototype.hasOwnProperty;
-  // The CoffeeScript language has a good deal of optional syntax, implicit syntax,
-  // and shorthand syntax. This can greatly complicate a grammar and bloat
-  // the resulting parse table. Instead of making the parser handle it all, we take
-  // a series of passes over the token stream, using this **Rewriter** to convert
-  // shorthand into the unambiguous long form, add implicit indentation and
-  // parentheses, balance incorrect nestings, and generally clean things up.
-  // Set up exported variables for both Node.js and the browser.
-  if ((typeof process !== "undefined" && process !== null)) {
-    helpers = require('./helpers').helpers;
+  if (typeof process !== "undefined" && process !== null) {
+    _a = require('./helpers');
+    helpers = _a.helpers;
   } else {
     this.exports = this;
     helpers = this.helpers;
   }
-  // Import the helpers we need.
-  include = helpers.include;
-  // The **Rewriter** class is used by the [Lexer](lexer.html), directly against
-  // its internal array of tokens.
+  _b = helpers;
+  include = _b.include;
   exports.Rewriter = (function() {
-    Rewriter = function Rewriter() {    };
-    // Rewrite the token stream in multiple passes, one logical filter at
-    // a time. This could certainly be changed into a single pass through the
-    // stream, with a big ol' efficient switch, but it's much nicer to work with
-    // like this. The order of these passes matters -- indentation must be
-    // corrected before implicit parentheses can be wrapped around blocks of code.
-    Rewriter.prototype.rewrite = function rewrite(tokens) {
+    Rewriter = function() {    };
+    Rewriter.prototype.rewrite = function(tokens) {
       this.tokens = tokens;
-      this.adjust_comments();
-      this.remove_leading_newlines();
-      this.remove_mid_expression_newlines();
-      this.close_open_calls_and_indexes();
-      this.add_implicit_indentation();
-      this.add_implicit_parentheses();
-      this.ensure_balance(BALANCED_PAIRS);
-      this.rewrite_closing_parens();
+      this.adjustComments();
+      this.removeLeadingNewlines();
+      this.removeMidExpressionNewlines();
+      this.closeOpenCallsAndIndexes();
+      this.addImplicitIndentation();
+      this.addImplicitParentheses();
+      this.ensureBalance(BALANCED_PAIRS);
+      this.rewriteClosingParens();
       return this.tokens;
     };
-    // Rewrite the token stream, looking one token ahead and behind.
-    // Allow the return value of the block to tell us how many tokens to move
-    // forwards (or backwards) in the stream, to make sure we don't miss anything
-    // as tokens are inserted and removed, and the stream changes length under
-    // our feet.
-    Rewriter.prototype.scan_tokens = function scan_tokens(block) {
+    Rewriter.prototype.scanTokens = function(block) {
       var i, move;
       i = 0;
       while (true) {
@@ -54,46 +36,45 @@
       }
       return true;
     };
-    // Massage newlines and indentations so that comments don't have to be
-    // correctly indented, or appear on a line of their own.
-    Rewriter.prototype.adjust_comments = function adjust_comments() {
-      return this.scan_tokens((function(__this) {
+    Rewriter.prototype.adjustComments = function() {
+      return this.scanTokens((function(__this) {
         var __func = function(prev, token, post, i) {
-          var after;
-          if (!(token[0] === 'COMMENT')) {
+          var _c, _d, after, before;
+          if (!(token[0] === 'HERECOMMENT')) {
             return 1;
           }
-          after = this.tokens[i + 2];
+          _c = [this.tokens[i - 2], this.tokens[i + 2]];
+          before = _c[0];
+          after = _c[1];
           if (after && after[0] === 'INDENT') {
             this.tokens.splice(i + 2, 1);
-            this.tokens.splice(i, 0, after);
-            return 1;
-          } else if (prev && prev[0] !== 'TERMINATOR' && prev[0] !== 'INDENT' && prev[0] !== 'OUTDENT') {
-            this.tokens.splice(i, 0, ['TERMINATOR', "\n", prev[2]]);
+            before && before[0] === 'OUTDENT' && post && (prev[0] === post[0]) && (post[0] === 'TERMINATOR') ? this.tokens.splice(i - 2, 1) : this.tokens.splice(i, 0, after);
+          } else if (prev && !('TERMINATOR' === (_d = prev[0]) || 'INDENT' === _d || 'OUTDENT' === _d)) {
+            if (post && post[0] === 'TERMINATOR' && after && after[0] === 'OUTDENT') {
+              this.tokens.splice.apply(this.tokens, [i + 3, 0].concat(this.tokens.splice(i, 2)));
+              this.tokens.splice(i + 3, 0, ['TERMINATOR', "\n", prev[2]]);
+            } else {
+              this.tokens.splice(i, 0, ['TERMINATOR', "\n", prev[2]]);
+            }
             return 2;
-          } else {
-            return 1;
           }
+          return 1;
         };
         return (function() {
           return __func.apply(__this, arguments);
         });
       })(this));
     };
-    // Leading newlines would introduce an ambiguity in the grammar, so we
-    // dispatch them here.
-    Rewriter.prototype.remove_leading_newlines = function remove_leading_newlines() {
-      var _a;
-      _a = [];
+    Rewriter.prototype.removeLeadingNewlines = function() {
+      var _c;
+      _c = [];
       while (this.tokens[0] && this.tokens[0][0] === 'TERMINATOR') {
-        _a.push(this.tokens.shift());
+        _c.push(this.tokens.shift());
       }
-      return _a;
+      return _c;
     };
-    // Some blocks occur in the middle of expressions -- when we're expecting
-    // this, remove their trailing newlines.
-    Rewriter.prototype.remove_mid_expression_newlines = function remove_mid_expression_newlines() {
-      return this.scan_tokens((function(__this) {
+    Rewriter.prototype.removeMidExpressionNewlines = function() {
+      return this.scanTokens((function(__this) {
         var __func = function(prev, token, post, i) {
           if (!(post && include(EXPRESSION_CLOSE, post[0]) && token[0] === 'TERMINATOR')) {
             return 1;
@@ -106,32 +87,29 @@
         });
       })(this));
     };
-    // The lexer has tagged the opening parenthesis of a method call, and the
-    // opening bracket of an indexing operation. Match them with their paired
-    // close.
-    Rewriter.prototype.close_open_calls_and_indexes = function close_open_calls_and_indexes() {
+    Rewriter.prototype.closeOpenCallsAndIndexes = function() {
       var brackets, parens;
       parens = [0];
       brackets = [0];
-      return this.scan_tokens((function(__this) {
+      return this.scanTokens((function(__this) {
         var __func = function(prev, token, post, i) {
-          var _a;
-          if ((_a = token[0]) === 'CALL_START') {
+          var _c;
+          if ((_c = token[0]) === 'CALL_START') {
             parens.push(0);
-          } else if (_a === 'INDEX_START') {
+          } else if (_c === 'INDEX_START') {
             brackets.push(0);
-          } else if (_a === '(') {
+          } else if (_c === '(') {
             parens[parens.length - 1] += 1;
-          } else if (_a === '[') {
+          } else if (_c === '[') {
             brackets[brackets.length - 1] += 1;
-          } else if (_a === ')') {
+          } else if (_c === ')') {
             if (parens[parens.length - 1] === 0) {
               parens.pop();
               token[0] = 'CALL_END';
             } else {
               parens[parens.length - 1] -= 1;
             }
-          } else if (_a === ']') {
+          } else if (_c === ']') {
             if (brackets[brackets.length - 1] === 0) {
               brackets.pop();
               token[0] = 'INDEX_END';
@@ -146,84 +124,108 @@
         });
       })(this));
     };
-    // Methods may be optionally called without parentheses, for simple cases.
-    // Insert the implicit parentheses here, so that the parser doesn't have to
-    // deal with them.
-    Rewriter.prototype.add_implicit_parentheses = function add_implicit_parentheses() {
-      var calls, stack;
+    Rewriter.prototype.addImplicitParentheses = function() {
+      var closeCalls, stack;
       stack = [0];
-      calls = 0;
-      return this.scan_tokens((function(__this) {
+      closeCalls = (function(__this) {
+        var __func = function(i) {
+          var _c, size, tmp;
+          (_c = stack[stack.length - 1]);
+
+          for (tmp = 0; tmp < _c; tmp += 1) {
+            this.tokens.splice(i, 0, ['CALL_END', ')', this.tokens[i][2]]);
+          }
+          size = stack[stack.length - 1] + 1;
+          stack[stack.length - 1] = 0;
+          return size;
+        };
+        return (function() {
+          return __func.apply(__this, arguments);
+        });
+      })(this);
+      return this.scanTokens((function(__this) {
         var __func = function(prev, token, post, i) {
-          var _a, _b, _c, _d, idx, last, open, size, stack_pointer, tag, tmp;
+          var _c, _d, j, nx, open, size, tag;
           tag = token[0];
-          if (tag === 'CALL_START') {
-            calls += 1;
-          } else if (tag === 'CALL_END') {
-            calls -= 1;
-          } else if (tag === 'INDENT') {
-            stack.push(0);
-          } else if (tag === 'OUTDENT') {
-            last = stack.pop();
-            stack[stack.length - 1] += last;
+          if (tag === 'OUTDENT') {
+            stack[stack.length - 2] += stack.pop();
           }
           open = stack[stack.length - 1] > 0;
-          if (tag === 'CALL_END' && calls < 0 && open) {
-            stack[stack.length - 1] -= 1;
-            this.tokens.splice(i, 0, ['CALL_END', ')', token[2]]);
+          if (prev && prev.spaced && include(IMPLICIT_FUNC, prev[0]) && include(IMPLICIT_CALL, tag) && !(tag === '!' && (('IN' === (_c = post[0]) || 'OF' === _c)))) {
+            this.tokens.splice(i, 0, ['CALL_START', '(', token[2]]);
+            stack[stack.length - 1] += 1;
+            if (include(EXPRESSION_START, tag)) {
+              stack.push(0);
+            }
             return 2;
           }
-          if (!(typeof post !== "undefined" && post !== null) || include(IMPLICIT_END, tag)) {
-            if (tag === 'INDENT' && prev && include(IMPLICIT_BLOCK, prev[0])) {
-              return 1;
+          if (include(EXPRESSION_START, tag)) {
+            if (tag === 'INDENT' && !token.generated && open && !(prev && include(IMPLICIT_BLOCK, prev[0]))) {
+              size = closeCalls(i);
+              stack.push(0);
+              return size;
             }
-            if (open || tag === 'INDENT') {
-              idx = tag === 'OUTDENT' ? i + 1 : i;
-              stack_pointer = tag === 'INDENT' ? 2 : 1;
-              _c = 0; _d = stack[stack.length - stack_pointer];
-              for (_b = 0, tmp = _c; (_c <= _d ? tmp < _d : tmp > _d); (_c <= _d ? tmp += 1 : tmp -= 1), _b++) {
-                this.tokens.splice(idx, 0, ['CALL_END', ')', token[2]]);
+            stack.push(0);
+            return 1;
+          }
+          if (open && !token.generated && prev[0] !== ',' && (!post || include(IMPLICIT_END, tag))) {
+            j = 1;
+            while ((typeof (_d = (nx = this.tokens[i + j])) !== "undefined" && _d !== null) && include(IMPLICIT_END, nx[0])) {
+              j++;
+            }
+            if ((typeof nx !== "undefined" && nx !== null) && nx[0] === ',') {
+              if (tag === 'TERMINATOR') {
+                this.tokens.splice(i, 1);
+              }
+            } else {
+              size = closeCalls(i);
+              if (tag !== 'OUTDENT' && include(EXPRESSION_END, tag)) {
+                stack.pop();
               }
-              size = stack[stack.length - stack_pointer] + 1;
-              stack[stack.length - stack_pointer] = 0;
               return size;
             }
           }
-          if (!(prev && include(IMPLICIT_FUNC, prev[0]) && include(IMPLICIT_CALL, tag))) {
+          if (tag !== 'OUTDENT' && include(EXPRESSION_END, tag)) {
+            stack[stack.length - 2] += stack.pop();
             return 1;
           }
-          calls = 0;
-          this.tokens.splice(i, 0, ['CALL_START', '(', token[2]]);
-          stack[stack.length - 1] += 1;
-          return 2;
+          return 1;
         };
         return (function() {
           return __func.apply(__this, arguments);
         });
       })(this));
     };
-    // Because our grammar is LALR(1), it can't handle some single-line
-    // expressions that lack ending delimiters. The **Rewriter** adds the implicit
-    // blocks, so it doesn't need to. ')' can close a single-line block,
-    // but we need to make sure it's balanced.
-    Rewriter.prototype.add_implicit_indentation = function add_implicit_indentation() {
-      return this.scan_tokens((function(__this) {
+    Rewriter.prototype.addImplicitIndentation = function() {
+      return this.scanTokens((function(__this) {
         var __func = function(prev, token, post, i) {
-          var idx, insertion, parens, pre, starter, tok;
+          var _c, idx, indent, insertion, outdent, parens, pre, starter, tok;
+          if (token[0] === 'ELSE' && prev[0] !== 'OUTDENT') {
+            this.tokens.splice.apply(this.tokens, [i, 0].concat(this.indentation(token)));
+            return 2;
+          }
+          if (token[0] === 'CATCH' && this.tokens[i + 2][0] === 'TERMINATOR') {
+            this.tokens.splice.apply(this.tokens, [i + 2, 0].concat(this.indentation(token)));
+            return 4;
+          }
           if (!(include(SINGLE_LINERS, token[0]) && post[0] !== 'INDENT' && !(token[0] === 'ELSE' && post[0] === 'IF'))) {
             return 1;
           }
           starter = token[0];
-          this.tokens.splice(i + 1, 0, ['INDENT', 2, token[2]]);
+          _c = this.indentation(token);
+          indent = _c[0];
+          outdent = _c[1];
+          indent.generated = (outdent.generated = true);
+          this.tokens.splice(i + 1, 0, indent);
           idx = i + 1;
           parens = 0;
           while (true) {
             idx += 1;
             tok = this.tokens[idx];
             pre = this.tokens[idx - 1];
-            if ((!tok || (include(SINGLE_CLOSERS, tok[0]) && tok[1] !== ';') || (tok[0] === ')' && parens === 0)) && !(starter === 'ELSE' && tok[0] === 'ELSE')) {
+            if ((!tok || (include(SINGLE_CLOSERS, tok[0]) && tok[1] !== ';' && parens === 0) || (tok[0] === ')' && parens === 0)) && !(tok[0] === 'ELSE' && !('IF' === starter || 'THEN' === starter))) {
               insertion = pre[0] === "," ? idx - 1 : idx;
-              this.tokens.splice(insertion, 0, ['OUTDENT', 2, token[2]]);
+              this.tokens.splice(insertion, 0, outdent);
               break;
             }
             if (tok[0] === '(') {
@@ -244,25 +246,23 @@
         });
       })(this));
     };
-    // Ensure that all listed pairs of tokens are correctly balanced throughout
-    // the course of the token stream.
-    Rewriter.prototype.ensure_balance = function ensure_balance(pairs) {
-      var _a, _b, key, levels, line, open, open_line, unclosed, value;
+    Rewriter.prototype.ensureBalance = function(pairs) {
+      var _c, _d, key, levels, line, open, openLine, unclosed, value;
       levels = {};
-      open_line = {};
-      this.scan_tokens((function(__this) {
+      openLine = {};
+      this.scanTokens((function(__this) {
         var __func = function(prev, token, post, i) {
-          var _a, _b, _c, _d, close, open, pair;
-          _a = pairs;
-          for (_b = 0, _c = _a.length; _b < _c; _b++) {
-            pair = _a[_b];
-            _d = pair;
-            open = _d[0];
-            close = _d[1];
+          var _c, _d, _e, _f, close, open, pair;
+          _d = pairs;
+          for (_c = 0, _e = _d.length; _c < _e; _c++) {
+            pair = _d[_c];
+            _f = pair;
+            open = _f[0];
+            close = _f[1];
             levels[open] = levels[open] || 0;
             if (token[0] === open) {
               if (levels[open] === 0) {
-                open_line[open] = token[2];
+                openLine[open] = token[2];
               }
               levels[open] += 1;
             }
@@ -270,7 +270,7 @@
               levels[open] -= 1;
             }
             if (levels[open] < 0) {
-              throw new Error("too many " + (token[1]) + " on line " + (token[2] + 1));
+              throw new Error(("too many " + (token[1]) + " on line " + (token[2] + 1)));
             }
           }
           return 1;
@@ -280,42 +280,31 @@
         });
       })(this));
       unclosed = (function() {
-        _a = []; _b = levels;
-        for (key in _b) { if (__hasProp.call(_b, key)) {
-          value = _b[key];
-          value > 0 ? _a.push(key) : null;
+        _c = []; _d = levels;
+        for (key in _d) { if (__hasProp.call(_d, key)) {
+          value = _d[key];
+          value > 0 ? _c.push(key) : null;
         }}
-        return _a;
-      }).call(this);
+        return _c;
+      })();
       if (unclosed.length) {
         open = unclosed[0];
-        line = open_line[open] + 1;
+        line = openLine[open] + 1;
         throw new Error("unclosed " + open + " on line " + line);
       }
     };
-    // We'd like to support syntax like this:
-    //     el.click((event) ->
-    //       el.hide())
-    // In order to accomplish this, move outdents that follow closing parens
-    // inwards, safely. The steps to accomplish this are:
-    // 1. Check that all paired tokens are balanced and in order.
-    // 2. Rewrite the stream with a stack: if you see an '(' or INDENT, add it
-    //    to the stack. If you see an ')' or OUTDENT, pop the stack and replace
-    //    it with the inverse of what we've just popped.
-    // 3. Keep track of "debt" for tokens that we fake, to make sure we end
-    //    up balanced in the end.
-    Rewriter.prototype.rewrite_closing_parens = function rewrite_closing_parens() {
-      var _a, debt, key, stack, val;
+    Rewriter.prototype.rewriteClosingParens = function() {
+      var _c, debt, key, stack, val;
       stack = [];
       debt = {};
-      _a = INVERSES;
-      for (key in _a) { if (__hasProp.call(_a, key)) {
-        val = _a[key];
+      _c = INVERSES;
+      for (key in _c) { if (__hasProp.call(_c, key)) {
+        val = _c[key];
         (debt[key] = 0);
       }}
-      return this.scan_tokens((function(__this) {
+      return this.scanTokens((function(__this) {
         var __func = function(prev, token, post, i) {
-          var inv, match, mtag, tag;
+          var inv, match, mtag, oppos, tag;
           tag = token[0];
           inv = INVERSES[token[0]];
           if (include(EXPRESSION_START, tag)) {
@@ -329,12 +318,18 @@
             } else {
               match = stack.pop();
               mtag = match[0];
-              if (tag === INVERSES[mtag]) {
+              oppos = INVERSES[mtag];
+              if (tag === oppos) {
                 return 1;
               }
               debt[mtag] += 1;
-              val = mtag === 'INDENT' ? match[1] : INVERSES[mtag];
-              this.tokens.splice(i, 0, [INVERSES[mtag], val]);
+              val = [oppos, mtag === 'INDENT' ? match[1] : oppos];
+              if ((this.tokens[i + 2] == undefined ? undefined : this.tokens[i + 2][0]) === mtag) {
+                this.tokens.splice(i + 3, 0, val);
+                stack.push(match);
+              } else {
+                this.tokens.splice(i, 0, val);
+              }
               return 1;
             }
           } else {
@@ -346,51 +341,40 @@
         });
       })(this));
     };
+    Rewriter.prototype.indentation = function(token) {
+      return [['INDENT', 2, token[2]], ['OUTDENT', 2, token[2]]];
+    };
     return Rewriter;
-  }).call(this);
-  // Constants
-  // ---------
-  // List of the token pairs that must be balanced.
-  BALANCED_PAIRS = [['(', ')'], ['[', ']'], ['{', '}'], ['INDENT', 'OUTDENT'], ['PARAM_START', 'PARAM_END'], ['CALL_START', 'CALL_END'], ['INDEX_START', 'INDEX_END'], ['SOAKED_INDEX_START', 'SOAKED_INDEX_END']];
-  // The inverse mappings of `BALANCED_PAIRS` we're trying to fix up, so we can
-  // look things up from either end.
+  })();
+  BALANCED_PAIRS = [['(', ')'], ['[', ']'], ['{', '}'], ['INDENT', 'OUTDENT'], ['PARAM_START', 'PARAM_END'], ['CALL_START', 'CALL_END'], ['INDEX_START', 'INDEX_END']];
   INVERSES = {};
-  _a = BALANCED_PAIRS;
-  for (_b = 0, _c = _a.length; _b < _c; _b++) {
-    pair = _a[_b];
+  _d = BALANCED_PAIRS;
+  for (_c = 0, _e = _d.length; _c < _e; _c++) {
+    pair = _d[_c];
     INVERSES[pair[0]] = pair[1];
     INVERSES[pair[1]] = pair[0];
   }
-  // The tokens that signal the start of a balanced pair.
   EXPRESSION_START = (function() {
-    _d = []; _e = BALANCED_PAIRS;
-    for (_f = 0, _g = _e.length; _f < _g; _f++) {
-      pair = _e[_f];
-      _d.push(pair[0]);
+    _f = []; _h = BALANCED_PAIRS;
+    for (_g = 0, _i = _h.length; _g < _i; _g++) {
+      pair = _h[_g];
+      _f.push(pair[0]);
     }
-    return _d;
-  }).call(this);
-  // The tokens that signal the end of a balanced pair.
+    return _f;
+  })();
   EXPRESSION_END = (function() {
-    _h = []; _i = BALANCED_PAIRS;
-    for (_j = 0, _k = _i.length; _j < _k; _j++) {
-      pair = _i[_j];
-      _h.push(pair[1]);
+    _j = []; _l = BALANCED_PAIRS;
+    for (_k = 0, _m = _l.length; _k < _m; _k++) {
+      pair = _l[_k];
+      _j.push(pair[1]);
     }
-    return _h;
-  }).call(this);
-  // Tokens that indicate the close of a clause of an expression.
+    return _j;
+  })();
   EXPRESSION_CLOSE = ['CATCH', 'WHEN', 'ELSE', 'FINALLY'].concat(EXPRESSION_END);
-  // Tokens that, if followed by an `IMPLICIT_CALL`, indicate a function invocation.
-  IMPLICIT_FUNC = ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', '<-'];
-  // If preceded by an `IMPLICIT_FUNC`, indicates a function invocation.
-  IMPLICIT_CALL = ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'TRY', 'DELETE', 'TYPEOF', 'SWITCH', 'EXTENSION', 'TRUE', 'FALSE', 'YES', 'NO', 'ON', 'OFF', '!', '!!', 'NOT', '@', '->', '=>', '[', '(', '{'];
-  // Tokens indicating that the implicit call must enclose a block of expressions.
+  IMPLICIT_FUNC = ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', '@'];
+  IMPLICIT_CALL = ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'TRY', 'DELETE', 'TYPEOF', 'SWITCH', 'TRUE', 'FALSE', 'YES', 'NO', 'ON', 'OFF', '!', '!!', 'THIS', 'NULL', '@', '->', '=>', '[', '(', '{'];
   IMPLICIT_BLOCK = ['->', '=>', '{', '[', ','];
-  // Tokens that always mark the end of an implicit call for single-liners.
-  IMPLICIT_END = ['IF', 'UNLESS', 'FOR', 'WHILE', 'TERMINATOR', 'INDENT', 'OUTDENT'];
-  // Single-line flavors of block expressions that have unclosed endings.
-  // The grammar can't disambiguate them, so we insert the implicit indentation.
+  IMPLICIT_END = ['IF', 'UNLESS', 'FOR', 'WHILE', 'UNTIL', 'LOOP', 'TERMINATOR', 'INDENT'].concat(EXPRESSION_END);
   SINGLE_LINERS = ['ELSE', "->", "=>", 'TRY', 'FINALLY', 'THEN'];
   SINGLE_CLOSERS = ['TERMINATOR', 'CATCH', 'FINALLY', 'ELSE', 'OUTDENT', 'LEADING_WHEN'];
 })();

lib/scope.js

@@ -1,88 +1,81 @@
 (function(){
   var Scope;
   var __hasProp = Object.prototype.hasOwnProperty;
-  // The **Scope** class regulates lexical scoping within CoffeeScript. As you
-  // generate code, you create a tree of scopes in the same shape as the nested
-  // function bodies. Each scope knows about the variables declared within it,
-  // and has a reference to its parent enclosing scope. In this way, we know which
-  // variables are new and need to be declared with `var`, and which are shared
-  // with the outside.
-  // Set up exported variables for both **Node.js** and the browser.
-  if (!((typeof process !== "undefined" && process !== null))) {
+  if (!(typeof process !== "undefined" && process !== null)) {
     this.exports = this;
   }
   exports.Scope = (function() {
-    Scope = function Scope(parent, expressions, method) {
+    Scope = function(parent, expressions, method) {
       var _a;
       _a = [parent, expressions, method];
       this.parent = _a[0];
       this.expressions = _a[1];
       this.method = _a[2];
       this.variables = {};
-      this.temp_var = this.parent ? this.parent.temp_var : '_a';
+      if (this.parent) {
+        this.tempVar = this.parent.tempVar;
+      } else {
+        Scope.root = this;
+        this.tempVar = '_a';
+      }
       return this;
     };
-    // Initialize a scope with its parent, for lookups up the chain,
-    // as well as a reference to the **Expressions** node is belongs to, which is
-    // where it should declare its variables, and a reference to the function that
-    // it wraps.
-    // Look up a variable name in lexical scope, and declare it if it does not
-    // already exist.
-    Scope.prototype.find = function find(name) {
+    Scope.root = null;
+    Scope.prototype.find = function(name) {
       if (this.check(name)) {
         return true;
       }
       this.variables[name] = 'var';
       return false;
     };
-    // Reserve a variable name as originating from a function parameter for this
-    // scope. No `var` required for internal references.
-    Scope.prototype.parameter = function parameter(name) {
+    Scope.prototype.any = function(fn) {
+      var _a, k, v;
+      _a = this.variables;
+      for (v in _a) { if (__hasProp.call(_a, v)) {
+        k = _a[v];
+        if (fn(v, k)) {
+          return true;
+        }
+      }}
+      return false;
+    };
+    Scope.prototype.parameter = function(name) {
       this.variables[name] = 'param';
       return this.variables[name];
     };
-    // Just check to see if a variable has already been declared, without reserving.
-    Scope.prototype.check = function check(name) {
-      if (this.variables[name]) {
+    Scope.prototype.check = function(name) {
+      if (this.variables.hasOwnProperty(name)) {
         return true;
       }
       return !!(this.parent && this.parent.check(name));
     };
-    // If we need to store an intermediate result, find an available name for a
-    // compiler-generated variable. `_a`, `_b`, and so on...
-    Scope.prototype.free_variable = function free_variable() {
+    Scope.prototype.freeVariable = function() {
       var ordinal;
-      while (this.check(this.temp_var)) {
-        ordinal = 1 + parseInt(this.temp_var.substr(1), 36);
-        this.temp_var = '_' + ordinal.toString(36).replace(/\d/g, 'a');
+      while (this.check(this.tempVar)) {
+        ordinal = 1 + parseInt(this.tempVar.substr(1), 36);
+        this.tempVar = '_' + ordinal.toString(36).replace(/\d/g, 'a');
       }
-      this.variables[this.temp_var] = 'var';
-      return this.temp_var;
+      this.variables[this.tempVar] = 'var';
+      return this.tempVar;
     };
-    // Ensure that an assignment is made at the top of this scope
-    // (or at the top-level scope, if requested).
-    Scope.prototype.assign = function assign(name, value, top_level) {
-      if (top_level && this.parent) {
-        return this.parent.assign(name, value, top_level);
-      }
+    Scope.prototype.assign = function(name, value) {
       this.variables[name] = {
         value: value,
         assigned: true
       };
       return this.variables[name];
     };
-    // Does this scope reference any variables that need to be declared in the
-    // given function body?
-    Scope.prototype.has_declarations = function has_declarations(body) {
-      return body === this.expressions && this.declared_variables().length;
+    Scope.prototype.hasDeclarations = function(body) {
+      return body === this.expressions && this.any(function(k, val) {
+        return val === 'var';
+      });
     };
-    // Does this scope reference any assignments that need to be declared at the
-    // top of the given function body?
-    Scope.prototype.has_assignments = function has_assignments(body) {
-      return body === this.expressions && this.assigned_variables().length;
+    Scope.prototype.hasAssignments = function(body) {
+      return body === this.expressions && this.any(function(k, val) {
+        return val.assigned;
+      });
     };
-    // Return the list of variables first declared in this scope.
-    Scope.prototype.declared_variables = function declared_variables() {
+    Scope.prototype.declaredVariables = function() {
       var _a, _b, key, val;
       return (function() {
         _a = []; _b = this.variables;
@@ -93,24 +86,20 @@
         return _a;
       }).call(this).sort();
     };
-    // Return the list of assignments that are supposed to be made at the top
-    // of this scope.
-    Scope.prototype.assigned_variables = function assigned_variables() {
+    Scope.prototype.assignedVariables = function() {
       var _a, _b, key, val;
       _a = []; _b = this.variables;
       for (key in _b) { if (__hasProp.call(_b, key)) {
         val = _b[key];
-        val.assigned ? _a.push("" + key + " = " + (val.value)) : null;
+        val.assigned ? _a.push("" + key + " = " + val.value) : null;
       }}
       return _a;
     };
-    // Compile the JavaScript for all of the variable declarations in this scope.
-    Scope.prototype.compiled_declarations = function compiled_declarations() {
-      return this.declared_variables().join(', ');
+    Scope.prototype.compiledDeclarations = function() {
+      return this.declaredVariables().join(', ');
     };
-    // Compile the JavaScript for all of the variable assignments in this scope.
-    Scope.prototype.compiled_assignments = function compiled_assignments() {
-      return this.assigned_variables().join(', ');
+    Scope.prototype.compiledAssignments = function() {
+      return this.assignedVariables().join(', ');
     };
     return Scope;
   }).call(this);

lib/utilities.js

@@ -0,0 +1,12 @@
+(function(){
+  if (!((typeof process !== "undefined" && process !== null))) {
+    this.exports = this;
+  }
+  exports.utilities = {
+    extend: "function(child, parent) {\n    var ctor = function(){ };\n    ctor.prototype = parent.prototype;\n    child.__superClass__ = parent.prototype;\n    child.prototype = new ctor();\n    child.prototype.constructor = child;\n  }",
+    bind: "function(func, obj, args) {\n    return function() {\n      return func.apply(obj || {}, args ? args.concat(__slice.call(arguments, 0)) : arguments);\n    };\n  }",
+    range: "function(array, from, to, exclusive) {\n    return [\n      (from < 0 ? from + array.length : from || 0),\n      (to < 0 ? to + array.length : to || array.length) + (exclusive ? 0 : 1)\n    ];\n  }",
+    hasProp: 'Object.prototype.hasOwnProperty',
+    slice: 'Array.prototype.slice'
+  };
+})();

package.json

@@ -3,5 +3,15 @@
     "description":  "Unfancy JavaScript",
     "keywords":     ["javascript", "language"],
     "author":       "Jeremy Ashkenas",
-    "version":      "0.5.6"
+    "version":      "0.7.2",
+    "licenses":     [{
+      "type":       "MIT",
+      "url":        "http://github.com/jashkenas/coffee-script/raw/master/LICENSE"
+    }],
+    "engines":      {
+      "node":       ">=0.1.99"
+    },
+    "scripts":      {
+      "install":    "sudo bin/cake install"
+    }
 }

src/cake.coffee

@@ -22,10 +22,11 @@ oparse: null
 # Mixin the top-level Cake functions for Cakefiles to use directly.
 helpers.extend global, {
 
-  # Define a Cake task with a short name, a sentence description,
+  # Define a Cake task with a short name, an optional sentence description,
   # and the function to run as the action itself.
   task: (name, description, action) ->
-    tasks[name]: {name: name, description: description, action: action}
+    [action, description]: [description, action] unless action
+    tasks[name]: {name, description, action}
 
   # Define an option that the Cakefile accepts. The parsed options hash,
   # containing all of the command-line options passed, will be made available
@@ -35,7 +36,7 @@ helpers.extend global, {
 
   # Invoke another task in the current Cakefile.
   invoke: (name) ->
-    no_such_task name unless tasks[name]
+    missingTask name unless tasks[name]
     tasks[name].action options
 
 }
@@ -47,22 +48,23 @@ exports.run: ->
   path.exists 'Cakefile', (exists) ->
     throw new Error("Cakefile not found in ${process.cwd()}") unless exists
     args: process.argv[2...process.argv.length]
-    CoffeeScript.run fs.readFileSync('Cakefile'), {source: 'Cakefile'}
+    CoffeeScript.run fs.readFileSync('Cakefile').toString(), {source: 'Cakefile'}
     oparse: new optparse.OptionParser switches
-    return print_tasks() unless args.length
+    return printTasks() unless args.length
     options: oparse.parse(args)
     invoke arg for arg in options.arguments
 
 # Display the list of Cake tasks in a format similar to `rake -T`
-print_tasks: ->
+printTasks: ->
   puts ''
   for name, task of tasks
     spaces: 20 - name.length
     spaces: if spaces > 0 then (' ' for i in [0..spaces]).join('') else ''
-    puts "cake $name$spaces # ${task.description}"
+    desc:   if task.description then "# $task.description" else ''
+    puts "cake $name$spaces $desc"
   puts oparse.help() if switches.length
 
 # Print an error and exit when attempting to all an undefined task.
-no_such_task: (task) ->
-  process.stdio.writeError "No such task: \"$task\"\n"
+missingTask: (task) ->
+  puts "No such task: \"$task\""
   process.exit 1

src/coffee-script.coffee

@@ -22,10 +22,10 @@ else
   helpers:      this.helpers
 
 # The current CoffeeScript version number.
-exports.VERSION: '0.5.6'
+exports.VERSION: '0.7.2'
 
 # Instantiate a Lexer for our use here.
-lexer: new Lexer()
+lexer: new Lexer
 
 # Compile a string of CoffeeScript code to JavaScript, using the Coffee/Jison
 # compiler.
@@ -34,7 +34,7 @@ exports.compile: compile: (code, options) ->
   try
     (parser.parse lexer.tokenize code).compile options
   catch err
-    err.message: "In ${options.source}, ${err.message}" if options.source
+    err.message: "In $options.source, $err.message" if options.source
     throw err
 
 # Tokenize a string of CoffeeScript code, and return the array of tokens.
@@ -51,17 +51,10 @@ exports.nodes: (code) ->
 # setting `__filename`, `__dirname`, and relative `require()`.
 exports.run: ((code, options) ->
   module.filename: __filename: options.source
-  __dirname: path.dirname __filename
+  __dirname: path.dirname(__filename)
   eval exports.compile code, options
 )
 
-# Extend CoffeeScript with a custom language extension. It should hook in to
-# the **Lexer** (as a peer of any of the lexer's tokenizing methods), and
-# push a token on to the stack that contains a **Node** as the value (as a
-# peer of the nodes in [nodes.coffee](nodes.html)).
-exports.extend: (func) ->
-  Lexer.extensions.push func
-
 # The real Lexer produces a generic stream of tokens. This object provides a
 # thin wrapper around it, compatible with the Jison API. We can then pass it
 # directly as a "Jison lexer".
@@ -76,7 +69,6 @@ parser.lexer: {
     @tokens: tokens
     @pos: 0
   upcomingInput: -> ""
-  showPosition: -> @pos
 }
 
 # Activate CoffeeScript in the browser by having it compile and evaluate
@@ -84,10 +76,10 @@ parser.lexer: {
 # on page load. Unfortunately, the text contents of remote scripts cannot be
 # accessed from the browser, so only inline script tags will work.
 if document? and document.getElementsByTagName
-  process_scripts: ->
+  processScripts: ->
     for tag in document.getElementsByTagName('script') when tag.type is 'text/coffeescript'
       eval exports.compile tag.innerHTML
   if window.addEventListener
-    window.addEventListener 'load', process_scripts, false
+    window.addEventListener 'load', processScripts, false
   else if window.attachEvent
-    window.attachEvent 'onload', process_scripts
+    window.attachEvent 'onload', processScripts

src/command.coffee

@@ -5,10 +5,11 @@
 # interactive REPL.
 
 # External dependencies.
-fs:           require 'fs'
-path:         require 'path'
-optparse:     require './optparse'
-CoffeeScript: require './coffee-script'
+fs:            require 'fs'
+path:          require 'path'
+optparse:      require './optparse'
+CoffeeScript:  require './coffee-script'
+{spawn, exec}: require('child_process')
 
 # The help banner that is printed when `coffee` is called without arguments.
 BANNER: '''
@@ -38,98 +39,113 @@ SWITCHES: [
 # Top-level objects shared by all the functions.
 options: {}
 sources: []
-option_parser: null
+optionParser: null
 
 # Run `coffee` by parsing passed options and determining what action to take.
 # Many flags cause us to divert before compiling anything. Flags passed after
 # `--` will be passed verbatim to your script as arguments in `process.argv`
 exports.run: ->
-  parse_options()
+  parseOptions()
   return usage()                              if options.help
   return version()                            if options.version
   return require './repl'                     if options.interactive
-  return compile_stdio()                      if options.stdio
-  return compile_script 'console', sources[0] if options.eval
-  return usage()                              unless sources.length
+  return compileStdio()                       if options.stdio
+  return compileScript 'console', sources[0]  if options.eval
+  return require './repl'                     unless sources.length
   separator: sources.indexOf '--'
   flags: []
   if separator >= 0
-    flags: sources[(separator + 1)...sources.length]
+    flags:   sources[(separator + 1)...sources.length]
     sources: sources[0...separator]
+  if options.run
+    flags:   sources[1..sources.length].concat flags
+    sources: [sources[0]]
   process.ARGV: process.argv: flags
-  watch_scripts() if options.watch
-  compile_scripts()
+  compileScripts()
 
 # Asynchronously read in each CoffeeScript in a list of source files and
-# compile them.
-compile_scripts: ->
-  compile: (source) ->
-    path.exists source, (exists) ->
-      throw new Error "File not found: $source" unless exists
-      fs.readFile source, (err, code) -> compile_script(source, code)
-  compile(source) for source in sources
+# compile them. If a directory is passed, recursively compile all
+# '.coffee' extension source files in it and all subdirectories.
+compileScripts: ->
+  for source in sources
+    base: source
+    compile: (source, topLevel) ->
+      path.exists source, (exists) ->
+        throw new Error "File not found: $source" unless exists
+        fs.stat source, (err, stats) ->
+          if stats.isDirectory()
+            fs.readdir source, (err, files) ->
+              for file in files
+                compile path.join(source, file)
+          else if topLevel or path.extname(source) is '.coffee'
+            fs.readFile source, (err, code) -> compileScript(source, code.toString(), base)
+            watch source, base if options.watch
+    compile source, true
 
 # Compile a single source script, containing the given code, according to the
-# requested options. Both compile_scripts and watch_scripts share this method
-# in common. If evaluating the script directly sets `__filename`, `__dirname`
-# and `module.filename` to be correct relative to the script's path.
-compile_script: (source, code) ->
+# requested options. If evaluating the script directly sets `__filename`,
+# `__dirname` and `module.filename` to be correct relative to the script's path.
+compileScript: (source, code, base) ->
   o: options
-  code_opts: compile_options source
+  codeOpts: compileOptions source
   try
-    if      o.tokens      then print_tokens CoffeeScript.tokens code
+    if      o.tokens      then printTokens CoffeeScript.tokens code
     else if o.nodes       then puts CoffeeScript.nodes(code).toString()
-    else if o.run         then CoffeeScript.run code, code_opts
+    else if o.run         then CoffeeScript.run code, codeOpts
     else
-      js: CoffeeScript.compile code, code_opts
-      if o.print          then process.stdio.write js
-      else if o.compile   then write_js source, js
+      js: CoffeeScript.compile code, codeOpts
+      if o.print          then print js
+      else if o.compile   then writeJs source, js, base
       else if o.lint      then lint js
   catch err
-    if o.watch            then puts err.message else throw err
+    error(err.stack) and process.exit 1 unless o.watch
+    puts err.message
 
 # Attach the appropriate listeners to compile scripts incoming over **stdin**,
 # and write them back to **stdout**.
-compile_stdio: ->
+compileStdio: ->
   code: ''
-  process.stdio.open()
-  process.stdio.addListener 'data', (string) ->
-    code: + string if string
-  process.stdio.addListener 'close', ->
-    compile_script 'stdio', code
+  stdin: process.openStdin()
+  stdin.addListener 'data', (buffer) ->
+    code: + buffer.toString() if buffer
+  stdin.addListener 'end', ->
+    compileScript 'stdio', code
 
-# Watch a list of source CoffeeScript files using `fs.watchFile`, recompiling
-# them every time the files are updated. May be used in combination with other
-# options, such as `--lint` or `--print`.
-watch_scripts: ->
-  watch: (source) ->
-    fs.watchFile source, {persistent: true, interval: 500}, (curr, prev) ->
-      return if curr.mtime.getTime() is prev.mtime.getTime()
-      fs.readFile source, (err, code) -> compile_script(source, code)
-  watch(source) for source in sources
+# Watch a source CoffeeScript file using `fs.watchFile`, recompiling it every
+# time the file is updated. May be used in combination with other options,
+# such as `--lint` or `--print`.
+watch: (source, base) ->
+  fs.watchFile source, {persistent: true, interval: 500}, (curr, prev) ->
+    return if curr.mtime.getTime() is prev.mtime.getTime()
+    fs.readFile source, (err, code) -> compileScript(source, code.toString(), base)
 
 # Write out a JavaScript source file with the compiled code. By default, files
 # are written out in `cwd` as `.js` files with the same name, but the output
 # directory can be customized with `--output`.
-write_js: (source, js) ->
+writeJs: (source, js, base) ->
   filename: path.basename(source, path.extname(source)) + '.js'
-  dir:      options.output or path.dirname(source)
-  js_path:  path.join dir, filename
-  fs.writeFile js_path, js
+  srcDir:   path.dirname source
+  baseDir:  srcDir.substring base.length
+  dir:      if options.output then path.join options.output, baseDir else srcDir
+  jsPath:   path.join dir, filename
+  compile:  ->
+    fs.writeFile jsPath, js, (err) ->
+      puts "Compiled $source" if options.compile and options.watch
+  path.exists dir, (exists) ->
+    if exists then compile() else exec "mkdir -p $dir", compile
 
 # Pipe compiled JS through JSLint (requires a working `jsl` command), printing
 # any errors or warnings that arise.
 lint: (js) ->
-  jsl: process.createChildProcess('jsl', ['-nologo', '-stdin'])
-  jsl.addListener 'output', (result) ->
-    puts result.replace(/\n/g, '') if result
-  jsl.addListener 'error', (result) ->
-    puts result if result
-  jsl.write js
-  jsl.close()
+  printIt: (buffer) -> print buffer.toString()
+  jsl: spawn 'jsl', ['-nologo', '-stdin']
+  jsl.stdout.addListener 'data', printIt
+  jsl.stderr.addListener 'data', printIt
+  jsl.stdin.write js
+  jsl.stdin.end()
 
 # Pretty-print a stream of tokens.
-print_tokens: (tokens) ->
+printTokens: (tokens) ->
   strings: for token in tokens
     [tag, value]: [token[0], token[1].toString().replace(/\n/, '\\n')]
     "[$tag $value]"
@@ -137,25 +153,25 @@ print_tokens: (tokens) ->
 
 # Use the [OptionParser module](optparse.html) to extract all options from
 # `process.argv` that are specified in `SWITCHES`.
-parse_options: ->
-  option_parser: new optparse.OptionParser SWITCHES, BANNER
-  o: options:    option_parser.parse(process.argv)
+parseOptions: ->
+  optionParser:  new optparse.OptionParser SWITCHES, BANNER
+  o: options:    optionParser.parse(process.argv[2...process.argv.length])
   options.run:   not (o.compile or o.print or o.lint)
   options.print: !!  (o.print or (o.eval or o.stdio and o.compile))
-  sources:       options.arguments[2...options.arguments.length]
+  sources:       options.arguments
 
 # The compile-time options to pass to the CoffeeScript compiler.
-compile_options: (source) ->
-  o: {source: source}
-  o['no_wrap']: options['no-wrap']
+compileOptions: (source) ->
+  o: {source}
+  o.noWrap: options['no-wrap']
   o
 
 # Print the `--help` usage message and exit.
 usage: ->
-  puts option_parser.help()
+  puts optionParser.help()
   process.exit 0
 
 # Print the `--version` message and exit.
 version: ->
-  puts "CoffeeScript version ${CoffeeScript.VERSION}"
+  puts "CoffeeScript version $CoffeeScript.VERSION"
   process.exit 0

src/grammar.coffee

@@ -30,10 +30,10 @@ unwrap: /function\s*\(\)\s*\{\s*return\s*([\s\S]*);\s*\}/
 # we pass the pattern-defining string, the action to run, and extra options,
 # optionally. If no action is specified, we simply pass the value of the
 # previous nonterminal.
-o: (pattern_string, action, options) ->
-  return [pattern_string, '$$ = $1;', options] unless action
+o: (patternString, action, options) ->
+  return [patternString, '$$ = $1;', options] unless action
   action: if match: (action + '').match(unwrap) then match[1] else "($action())"
-  [pattern_string, "$$ = $action;", options]
+  [patternString, "$$ = $action;", options]
 
 # Grammatical Rules
 # -----------------
@@ -53,35 +53,45 @@ grammar: {
   # The **Root** is the top-level node in the syntax tree. Since we parse bottom-up,
   # all parsing must end here.
   Root: [
-    o "",                                  -> new Expressions()
-    o "TERMINATOR",                        -> new Expressions()
-    o "Expressions"
+    o "",                                       -> new Expressions
+    o "TERMINATOR",                             -> new Expressions
+    o "Body"
     o "Block TERMINATOR"
   ]
 
-  # Any list of expressions or method body, seperated by line breaks or
-  # semicolons.
-  Expressions: [
-    o "Expression",                        -> Expressions.wrap [$1]
-    o "Expressions TERMINATOR Expression", -> $1.push $3
-    o "Expressions TERMINATOR"
+  # Any list of statements and expressions, seperated by line breaks or semicolons.
+  Body: [
+    o "Line",                                   -> Expressions.wrap [$1]
+    o "Body TERMINATOR Line",                   -> $1.push $3
+    o "Body TERMINATOR"
+  ]
+
+  # Expressions and statements, which make up a line in a body.
+  Line: [
+    o "Expression"
+    o "Statement"
+  ]
+
+  # Pure statements which cannot be expressions.
+  Statement: [
+    o "Return"
+    o "Throw"
+    o "BREAK",                                  -> new LiteralNode $1
+    o "CONTINUE",                               -> new LiteralNode $1
   ]
 
   # All the different types of expressions in our language. The basic unit of
-  # CoffeeScript is the **Expression** -- you'll notice that there is no
-  # "statement" nonterminal. Expressions serve as the building blocks
-  # of many other rules, making them somewhat circular.
+  # CoffeeScript is the **Expression** -- everything that can be an expression
+  # is one. Expressions serve as the building blocks of many other rules, making
+  # them somewhat circular.
   Expression: [
     o "Value"
     o "Call"
-    o "Curry"
     o "Code"
     o "Operation"
     o "Assign"
     o "If"
     o "Try"
-    o "Throw"
-    o "Return"
     o "While"
     o "For"
     o "Switch"
@@ -90,38 +100,35 @@ grammar: {
     o "Splat"
     o "Existence"
     o "Comment"
-    o "Extension"
   ]
 
   # A an indented block of expressions. Note that the [Rewriter](rewriter.html)
   # will convert some postfix forms into blocks for us, by adjusting the
   # token stream.
   Block: [
-    o "INDENT Expressions OUTDENT",             -> $2
-    o "INDENT OUTDENT",                         -> new Expressions()
+    o "INDENT Body OUTDENT",                    -> $2
+    o "INDENT OUTDENT",                         -> new Expressions
     o "TERMINATOR Comment",                     -> Expressions.wrap [$2]
   ]
 
   # A literal identifier, a variable name or property.
   Identifier: [
-    o "IDENTIFIER",                             -> new LiteralNode yytext
+    o "IDENTIFIER",                             -> new LiteralNode $1
   ]
 
   # Alphanumerics are separated from the other **Literal** matchers because
   # they can also serve as keys in object literals.
   AlphaNumeric: [
-    o "NUMBER",                                 -> new LiteralNode yytext
-    o "STRING",                                 -> new LiteralNode yytext
+    o "NUMBER",                                 -> new LiteralNode $1
+    o "STRING",                                 -> new LiteralNode $1
   ]
 
   # All of our immediate values. These can (in general), be passed straight
   # through and printed to JavaScript.
   Literal: [
     o "AlphaNumeric"
-    o "JS",                                     -> new LiteralNode yytext
-    o "REGEX",                                  -> new LiteralNode yytext
-    o "BREAK",                                  -> new LiteralNode yytext
-    o "CONTINUE",                               -> new LiteralNode yytext
+    o "JS",                                     -> new LiteralNode $1
+    o "REGEX",                                  -> new LiteralNode $1
     o "TRUE",                                   -> new LiteralNode true
     o "FALSE",                                  -> new LiteralNode false
     o "YES",                                    -> new LiteralNode true
@@ -132,12 +139,14 @@ grammar: {
 
   # Assignment of a variable, property, or index to a value.
   Assign: [
-    o "Value ASSIGN Expression",                -> new AssignNode $1, $3
+    o "Assignable ASSIGN Expression",           -> new AssignNode $1, $3
   ]
 
   # Assignment when it happens within an object literal. The difference from
   # the ordinary **Assign** is that these allow numbers and strings as keys.
   AssignObj: [
+    o "Identifier",                             -> new ValueNode $1
+    o "AlphaNumeric"
     o "Identifier ASSIGN Expression",           -> new AssignNode new ValueNode($1), $3, 'object'
     o "AlphaNumeric ASSIGN Expression",         -> new AssignNode new ValueNode($1), $3, 'object'
     o "Comment"
@@ -149,11 +158,9 @@ grammar: {
     o "RETURN",                                 -> new ReturnNode new ValueNode new LiteralNode 'null'
   ]
 
-  # A comment. Because CoffeeScript passes comments through to JavaScript, we
-  # have to parse comments like any other construct, and identify all of the
-  # positions in which they can occur in the grammar.
+  # A block comment.
   Comment: [
-    o "COMMENT",                                -> new CommentNode yytext
+    o "HERECOMMENT",                            -> new CommentNode $1
   ]
 
   # [The existential operator](http://jashkenas.github.com/coffee-script/#existence).
@@ -176,6 +183,12 @@ grammar: {
     o "=>",                                     -> 'boundfunc'
   ]
 
+  # An optional, trailing comma.
+  OptComma: [
+    o ''
+    o ','
+  ]
+
   # The list of parameters that a function accepts can be of any length.
   ParamList: [
     o "",                                       -> []
@@ -186,7 +199,7 @@ grammar: {
   # A single parameter in a function definition can be ordinary, or a splat
   # that hoovers up the remaining arguments.
   Param: [
-    o "PARAM",                                  -> new LiteralNode yytext
+    o "PARAM",                                  -> new LiteralNode $1
     o "Param . . .",                            -> new SplatNode $1
   ]
 
@@ -195,18 +208,30 @@ grammar: {
     o "Expression . . .",                       -> new SplatNode $1
   ]
 
+  # Variables and properties that can be assigned to.
+  SimpleAssignable: [
+    o "Identifier",                             -> new ValueNode $1
+    o "Value Accessor",                         -> $1.push $2
+    o "Invocation Accessor",                    -> new ValueNode $1, [$2]
+    o "ThisProperty"
+  ]
+
+  # Everything that can be assigned to.
+  Assignable: [
+    o "SimpleAssignable"
+    o "Array",                                  -> new ValueNode $1
+    o "Object",                                 -> new ValueNode $1
+  ]
+
   # The types of things that can be treated as values -- assigned to, invoked
   # as functions, indexed into, named as a class, etc.
   Value: [
-    o "Identifier",                             -> new ValueNode $1
+    o "Assignable"
     o "Literal",                                -> new ValueNode $1
-    o "Array",                                  -> new ValueNode $1
-    o "Object",                                 -> new ValueNode $1
     o "Parenthetical",                          -> new ValueNode $1
     o "Range",                                  -> new ValueNode $1
     o "This"
-    o "Value Accessor",                         -> $1.push $2
-    o "Invocation Accessor",                    -> new ValueNode $1, [$2]
+    o "NULL",                                   -> new ValueNode new LiteralNode 'null'
   ]
 
   # The general group of accessors into an object, by property, by prototype
@@ -223,22 +248,13 @@ grammar: {
   # Indexing into an object or array using bracket notation.
   Index: [
     o "INDEX_START Expression INDEX_END",       -> new IndexNode $2
-    o "SOAKED_INDEX_START Expression SOAKED_INDEX_END", -> new IndexNode $2, 'soak'
+    o "INDEX_SOAK Index",                       -> $2.soakNode: yes; $2
+    o "INDEX_PROTO Index",                      -> $2.proto: yes; $2
   ]
 
   # In CoffeeScript, an object literal is simply a list of assignments.
   Object: [
-    o "{ AssignList }",                         -> new ObjectNode $2
-    o "{ IndentedAssignList }",                 -> new ObjectNode $2
-  ]
-
-  # Class definitions have optional bodies of prototype property assignments,
-  # and optional references to the superclass.
-  Class: [
-    o "CLASS Value",                            -> new ClassNode $2
-    o "CLASS Value EXTENDS Value",              -> new ClassNode $2, $4
-    o "CLASS Value IndentedAssignList",         -> new ClassNode $2, null, $3
-    o "CLASS Value EXTENDS Value IndentedAssignList", -> new ClassNode $2, $4, $5
+    o "{ AssignList OptComma }",                -> new ObjectNode $2
   ]
 
   # Assignment of properties within an object literal can be separated by
@@ -247,31 +263,45 @@ grammar: {
     o "",                                       -> []
     o "AssignObj",                              -> [$1]
     o "AssignList , AssignObj",                 -> $1.concat [$3]
-    o "AssignList TERMINATOR AssignObj",        -> $1.concat [$3]
-    o "AssignList , TERMINATOR AssignObj",      -> $1.concat [$4]
+    o "AssignList OptComma TERMINATOR AssignObj", -> $1.concat [$4]
+    o "AssignList OptComma INDENT AssignList OptComma OUTDENT", -> $1.concat $4
   ]
 
-  # An **AssignList** within a block indentation.
-  IndentedAssignList: [
-    o "INDENT AssignList OUTDENT",              -> $2
+  # Class definitions have optional bodies of prototype property assignments,
+  # and optional references to the superclass.
+  Class: [
+    o "CLASS SimpleAssignable",                 -> new ClassNode $2
+    o "CLASS SimpleAssignable EXTENDS Value",   -> new ClassNode $2, $4
+    o "CLASS SimpleAssignable INDENT ClassBody OUTDENT", -> new ClassNode $2, null, $4
+    o "CLASS SimpleAssignable EXTENDS Value INDENT ClassBody OUTDENT", -> new ClassNode $2, $4, $6
+  ]
+
+  # Assignments that can happen directly inside a class declaration.
+  ClassAssign: [
+    o "AssignObj",                              -> $1
+    o "ThisProperty ASSIGN Expression",         -> new AssignNode new ValueNode($1), $3, 'this'
+  ]
+
+  # A list of assignments to a class.
+  ClassBody: [
+    o "",                                       -> []
+    o "ClassAssign",                            -> [$1]
+    o "ClassBody TERMINATOR ClassAssign",       -> $1.concat $3
   ]
 
   # The three flavors of function call: normal, object instantiation with `new`,
   # and calling `super()`
   Call: [
     o "Invocation"
-    o "NEW Invocation",                         -> $2.new_instance()
     o "Super"
-  ]
-
-  Curry: [
-    o "Value <- Arguments",                     -> new CurryNode $1, $3
+    o "NEW Invocation",                         -> $2.newInstance()
+    o "NEW Value",                              -> (new CallNode($2, [])).newInstance()
   ]
 
   # Extending an object by setting its prototype chain to reference a parent
   # object.
   Extends: [
-    o "Value EXTENDS Value",                    -> new ExtendsNode $1, $3
+    o "SimpleAssignable EXTENDS Value",         -> new ExtendsNode $1, $3
   ]
 
   # Ordinary function invocation, or a chained series of calls.
@@ -282,17 +312,22 @@ grammar: {
 
   # The list of arguments to a function call.
   Arguments: [
-    o "CALL_START ArgList CALL_END",            -> $2
+    o "CALL_START ArgList OptComma CALL_END",   -> $2
   ]
 
   # Calling super.
   Super: [
-    o "SUPER CALL_START ArgList CALL_END",      -> new CallNode 'super', $3
+    o "SUPER Arguments",                        -> new CallNode 'super', $2
   ]
 
-  # A reference to the *this* current object, either naked or to a property.
+  # A reference to the *this* current object.
   This: [
+    o "THIS",                                   -> new ValueNode new LiteralNode 'this'
     o "@",                                      -> new ValueNode new LiteralNode 'this'
+  ]
+
+  # A reference to a property on *this*.
+  ThisProperty: [
     o "@ Identifier",                           -> new ValueNode new LiteralNode('this'), [new AccessorNode($2)]
   ]
 
@@ -310,7 +345,7 @@ grammar: {
 
   # The array literal.
   Array: [
-    o "[ ArgList ]",                            -> new ArrayNode $2
+    o "[ ArgList OptComma ]",                   -> new ArrayNode $2
   ]
 
   # The **ArgList** is both the list of objects passed into a function call,
@@ -319,12 +354,9 @@ grammar: {
   ArgList: [
     o "",                                       -> []
     o "Expression",                             -> [$1]
-    o "INDENT Expression",                      -> [$2]
     o "ArgList , Expression",                   -> $1.concat [$3]
-    o "ArgList TERMINATOR Expression",          -> $1.concat [$3]
-    o "ArgList , TERMINATOR Expression",        -> $1.concat [$4]
-    o "ArgList , INDENT Expression",            -> $1.concat [$4]
-    o "ArgList OUTDENT"
+    o "ArgList OptComma TERMINATOR Expression", -> $1.concat [$4]
+    o "ArgList OptComma INDENT ArgList OptComma OUTDENT", -> $1.concat $4
   ]
 
   # Just simple, comma-separated, required arguments (no fancy syntax). We need
@@ -358,100 +390,109 @@ grammar: {
   # where only values are accepted, wrapping it in parentheses will always do
   # the trick.
   Parenthetical: [
-    o "( Expression )",                         -> new ParentheticalNode $2
-  ]
-
-  # A language extension to CoffeeScript from the outside. We simply pass
-  # it through unaltered.
-  Extension: [
-    o "EXTENSION",                              -> yytext
+    o "( Line )",                               -> new ParentheticalNode $2
   ]
 
   # The condition portion of a while loop.
   WhileSource: [
     o "WHILE Expression",                       -> new WhileNode $2
-    o "WHILE Expression WHEN Expression",       -> new WhileNode $2, {filter : $4}
+    o "WHILE Expression WHEN Expression",       -> new WhileNode $2, {guard : $4}
+    o "UNTIL Expression",                       -> new WhileNode $2, {invert: true}
+    o "UNTIL Expression WHEN Expression",       -> new WhileNode $2, {invert: true, guard: $4}
   ]
 
   # The while loop can either be normal, with a block of expressions to execute,
   # or postfix, with a single expression. There is no do..while.
   While: [
-    o "WhileSource Block",                      -> $1.add_body $2
-    o "Expression WhileSource",                 -> $2.add_body Expressions.wrap [$1]
+    o "WhileSource Block",                      -> $1.addBody $2
+    o "Statement WhileSource",                  -> $2.addBody Expressions.wrap [$1]
+    o "Expression WhileSource",                 -> $2.addBody Expressions.wrap [$1]
+    o "Loop",                                   -> $1
+  ]
+
+  Loop: [
+    o "LOOP Block",                             -> new WhileNode(new LiteralNode 'true').addBody $2
+    o "LOOP Expression",                        -> new WhileNode(new LiteralNode 'true').addBody Expressions.wrap [$2]
   ]
 
   # Array, object, and range comprehensions, at the most generic level.
   # Comprehensions can either be normal, with a block of expressions to execute,
   # or postfix, with a single expression.
   For: [
+    o "Statement FOR ForVariables ForSource",   -> new ForNode $1, $4, $3[0], $3[1]
     o "Expression FOR ForVariables ForSource",  -> new ForNode $1, $4, $3[0], $3[1]
     o "FOR ForVariables ForSource Block",       -> new ForNode $4, $3, $2[0], $2[1]
   ]
 
+  # An array of all accepted values for a variable inside the loop. This
+  # enables support for pattern matching.
+  ForValue: [
+    o "Identifier"
+    o "Array",                                  -> new ValueNode $1
+    o "Object",                                 -> new ValueNode $1
+  ]
+
   # An array or range comprehension has variables for the current element and
   # (optional) reference to the current index. Or, *key, value*, in the case
   # of object comprehensions.
   ForVariables: [
-    o "Identifier",                             -> [$1]
-    o "Identifier , Identifier",                -> [$1, $3]
+    o "ForValue",                               -> [$1]
+    o "ForValue , ForValue",                    -> [$1, $3]
   ]
 
-  # The source of a comprehension is an array or object with an optional filter
-  # clause. If it's an array comprehension, you can also choose to step throug
+  # The source of a comprehension is an array or object with an optional guard
+  # clause. If it's an array comprehension, you can also choose to step through
   # in fixed-size increments.
   ForSource: [
-    o "IN Expression",                          -> {source:   $2}
-    o "OF Expression",                          -> {source:   $2, object: true}
-    o "ForSource WHEN Expression",              -> $1.filter: $3; $1
-    o "ForSource BY Expression",                -> $1.step:   $3; $1
+    o "IN Expression",                               -> {source: $2}
+    o "OF Expression",                               -> {source: $2, object: true}
+    o "IN Expression WHEN Expression",               -> {source: $2, guard: $4}
+    o "OF Expression WHEN Expression",               -> {source: $2, guard: $4, object: true}
+    o "IN Expression BY Expression",                 -> {source: $2, step:   $4}
+    o "IN Expression WHEN Expression BY Expression", -> {source: $2, guard: $4, step:   $6}
+    o "IN Expression BY Expression WHEN Expression", -> {source: $2, step:   $4, guard: $6}
   ]
 
   # The CoffeeScript switch/when/else block replaces the JavaScript
   # switch/case/default by compiling into an if-else chain.
   Switch: [
-    o "SWITCH Expression INDENT Whens OUTDENT", -> $4.rewrite_condition $2
-    o "SWITCH Expression INDENT Whens ELSE Block OUTDENT", -> $4.rewrite_condition($2).add_else $6, true
+    o "SWITCH Expression INDENT Whens OUTDENT", -> $4.switchesOver $2
+    o "SWITCH Expression INDENT Whens ELSE Block OUTDENT", -> $4.switchesOver($2).addElse $6, true
+    o "SWITCH INDENT Whens OUTDENT",            -> $3
+    o "SWITCH INDENT Whens ELSE Block OUTDENT", -> $3.addElse $5, true
   ]
 
   # The inner list of whens is left recursive. At code-generation time, the
   # IfNode will rewrite them into a proper chain.
   Whens: [
     o "When"
-    o "Whens When",                             -> $1.push $2
+    o "Whens When",                             -> $1.addElse $2
   ]
 
   # An individual **When** clause, with action.
   When: [
-    o "LEADING_WHEN SimpleArgs Block",          -> new IfNode $2, $3, null, {statement: true}
-    o "LEADING_WHEN SimpleArgs Block TERMINATOR", -> new IfNode $2, $3, null, {statement: true}
-    o "Comment TERMINATOR When",                -> $3.comment: $1; $3
+    o "LEADING_WHEN SimpleArgs Block",            -> new IfNode $2, $3, {statement: true}
+    o "LEADING_WHEN SimpleArgs Block TERMINATOR", -> new IfNode $2, $3, {statement: true}
   ]
 
   # The most basic form of *if* is a condition and an action. The following
   # if-related rules are broken up along these lines in order to avoid
   # ambiguity.
-  IfStart: [
-    o "IF Expression Block",                    -> new IfNode $2, $3
-    o "IfStart ElsIf",                          -> $1.add_else $2
-  ]
-
-  # An **IfStart** can optionally be followed by an else block.
   IfBlock: [
-    o "IfStart"
-    o "IfStart ELSE Block",                     -> $1.add_else $3
-  ]
-
-  # An *else if* continuation of the *if* expression.
-  ElsIf: [
-    o "ELSE IF Expression Block",               -> (new IfNode($3, $4)).force_statement()
+    o "IF Expression Block",                    -> new IfNode $2, $3
+    o "UNLESS Expression Block",                -> new IfNode $2, $3, {invert: true}
+    o "IfBlock ELSE IF Expression Block",       -> $1.addElse (new IfNode($4, $5)).forceStatement()
+    o "IfBlock ELSE Block",                     -> $1.addElse $3
   ]
 
   # The full complement of *if* expressions, including postfix one-liner
   # *if* and *unless*.
   If: [
     o "IfBlock"
-    o "Expression IF Expression",               -> new IfNode $3, Expressions.wrap([$1]), null, {statement: true}
-    o "Expression UNLESS Expression",           -> new IfNode $3, Expressions.wrap([$1]), null, {statement: true, invert: true}
+    o "Statement IF Expression",                -> new IfNode $3, Expressions.wrap([$1]), {statement: true}
+    o "Expression IF Expression",               -> new IfNode $3, Expressions.wrap([$1]), {statement: true}
+    o "Statement UNLESS Expression",            -> new IfNode $3, Expressions.wrap([$1]), {statement: true, invert: true}
+    o "Expression UNLESS Expression",           -> new IfNode $3, Expressions.wrap([$1]), {statement: true, invert: true}
   ]
 
   # Arithmetic and logical operators, working on one or more operands.
@@ -497,7 +538,7 @@ grammar: {
 
     o "Expression && Expression",               -> new OpNode '&&', $1, $3
     o "Expression || Expression",               -> new OpNode '||', $1, $3
-    o "Expression ? Expression",                -> new OpNode '?', $1, $3
+    o "Expression OP? Expression",              -> new OpNode '?', $1, $3
 
     o "Expression -= Expression",               -> new OpNode '-=', $1, $3
     o "Expression += Expression",               -> new OpNode '+=', $1, $3
@@ -509,7 +550,10 @@ grammar: {
     o "Expression ?= Expression",               -> new OpNode '?=', $1, $3
 
     o "Expression INSTANCEOF Expression",       -> new OpNode 'instanceof', $1, $3
-    o "Expression IN Expression",               -> new OpNode 'in', $1, $3
+    o "Expression IN Expression",               -> new InNode $1, $3
+    o "Expression OF Expression",               -> new OpNode 'in', $1, $3
+    o "Expression ! IN Expression",             -> new OpNode '!', new InNode $1, $4
+    o "Expression ! OF Expression",             -> new OpNode '!', new ParentheticalNode new OpNode 'in', $1, $4
   ]
 
 }
@@ -535,16 +579,16 @@ operators: [
   ["left",      '<=', '<', '>', '>=']
   ["right",     'DELETE', 'INSTANCEOF', 'TYPEOF']
   ["left",      '==', '!=']
-  ["left",      '&&', '||']
+  ["left",      '&&', '||', 'OP?']
   ["right",     '-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?=']
   ["left",      '.']
   ["right",     'INDENT']
   ["left",      'OUTDENT']
   ["right",     'WHEN', 'LEADING_WHEN', 'IN', 'OF', 'BY', 'THROW']
-  ["right",     'FOR', 'NEW', 'SUPER', 'CLASS']
+  ["right",     'FOR', 'WHILE', 'UNTIL', 'LOOP', 'NEW', 'SUPER', 'CLASS']
   ["left",      'EXTENDS']
   ["right",     'ASSIGN', 'RETURN']
-  ["right",     '->', '=>', '<-', 'UNLESS', 'IF', 'ELSE', 'WHILE']
+  ["right",     '->', '=>', 'UNLESS', 'IF', 'ELSE']
 ]
 
 # Wrapping Up

src/helpers.coffee

@@ -6,9 +6,17 @@
 this.exports: this unless process?
 helpers: exports.helpers: {}
 
+# Cross-browser indexOf, so that IE can join the party.
+helpers.indexOf: indexOf: (array, item, from) ->
+  return array.indexOf item, from if array.indexOf
+  for other, index in array
+    if other is item and (not from or (from <= index))
+      return index
+  -1
+
 # Does a list include a value?
 helpers.include: include: (list, value) ->
-  list.indexOf(value) >= 0
+  indexOf(list, value) >= 0
 
 # Peek at the beginning of a given string to see if it matches a sequence.
 helpers.starts: starts: (string, literal, start) ->
@@ -20,10 +28,10 @@ helpers.compact: compact: (array) -> item for item in array when item
 # Count the number of occurences of a character in a string.
 helpers.count: count: (string, letter) ->
   num: 0
-  pos: string.indexOf(letter)
+  pos: indexOf string, letter
   while pos isnt -1
     num: + 1
-    pos: string.indexOf(letter, pos + 1)
+    pos: indexOf string, letter, pos + 1
   num
 
 # Merge objects, returning a fresh copy with attributes from both sides.
@@ -54,34 +62,3 @@ helpers.del: del: (obj, key) ->
   val: obj[key]
   delete obj[key]
   val
-
-# Matches a balanced group such as a single or double-quoted string. Pass in
-# a series of delimiters, all of which must be nested correctly within the
-# contents of the string. This method allows us to have strings within
-# interpolations within strings, ad infinitum.
-helpers.balanced_string: balanced_string: (str, delimited, options) ->
-  options: or {}
-  slash: delimited[0][0] is '/'
-  levels: []
-  i: 0
-  while i < str.length
-    if levels.length and starts str, '\\', i
-      i: + 1
-    else
-      for pair in delimited
-        [open, close]: pair
-        if levels.length and starts(str, close, i) and levels[levels.length - 1] is pair
-          levels.pop()
-          i: + close.length - 1
-          i: + 1 unless levels.length
-          break
-        else if starts str, open, i
-          levels.push(pair)
-          i: + open.length - 1
-          break
-    break if not levels.length or slash and starts str, '\n', i
-    i: + 1
-  if levels.length
-    return false if slash
-    throw new Error "SyntaxError: Unterminated ${levels.pop()[0]} starting on line ${@line + 1}"
-  if not i then false else str.substring(0, i)