CoffeeScript 0.6.2

Conflicts:
	src/nodes.coffee

.gitignore

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

Cakefile

@@ -1,65 +1,102 @@
-fs: require 'fs'
-coffee: require 'coffee-script'
+fs:            require 'fs'
+{helpers}:     require('./lib/helpers')
+CoffeeScript:  require './lib/coffee-script'
+{spawn, exec}: require('child_process')
 
 # 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
 
+option '-p', '--prefix [DIR]', 'set the installation prefix for `cake install`'
 
-task 'install', 'install CoffeeScript into /usr/local', ->
+task 'install', 'install CoffeeScript into /usr/local (or --prefix)', (options) ->
+  base: options.prefix or '/usr/local'
+  lib:  "$base/lib/coffee-script"
+  bin:  "$base/bin"
   exec([
-    'mkdir -p /usr/local/lib/coffee-script'
-    'cp -rf bin lib LICENSE README package.json src vendor /usr/local/lib/coffee-script'
-    'ln -sf /usr/local/lib/coffee-script/lib/bin/coffee /usr/local/bin/coffee'
-    'ln -sf /usr/local/lib/coffee-script/lib/bin/cake /usr/local/bin/cake'
-  ].join(' && '))
+    "mkdir -p $lib $bin"
+    "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 ~/.node_libraries"
+    "ln -sf $lib/lib ~/.node_libraries/coffee-script"
+  ].join(' && '), (err, stdout, stderr) ->
+   if err then print stderr
+  )
 
 
 task 'build', 'build the CoffeeScript language from source', ->
-  fs.readdir 'src', (err, files) ->
-    files: 'src/' + file for file in files when file.match(/\.coffee$/)
-    run ['-o', 'lib'].concat(files)
+  files: fs.readdirSync 'src'
+  files: 'src/' + file for file in files when file.match(/\.coffee$/)
+  run ['-c', '-o', 'lib'].concat(files)
+
+
+task 'build:full', 'rebuild the source twice, and run the tests', ->
+  exec 'bin/cake build && bin/cake build && bin/cake test', (err, stdout, stderr) ->
+    print stdout if stdout
+    print stderr if stderr
+    throw err    if err
 
 
 task 'build:parser', 'rebuild the Jison parser (run build first)', ->
-  parser: require('grammar').parser
+  require.paths.unshift 'vendor/jison/lib'
+  parser: require('./lib/grammar').parser
   js: parser.generate()
   parser_path: 'lib/parser.js'
   fs.writeFile parser_path, js
 
 
 task 'build:ultraviolet', 'build and install the Ultraviolet syntax highlighter', ->
-  exec 'plist2syntax extras/CoffeeScript.tmbundle/Syntaxes/CoffeeScript.tmLanguage', (err) ->
+  exec 'plist2syntax ../coffee-script-tmbundle/Syntaxes/CoffeeScript.tmLanguage', (err) ->
+    throw err if err
     exec 'sudo mv coffeescript.yaml /usr/local/lib/ruby/gems/1.8/gems/ultraviolet-0.10.2/syntax/coffeescript.syntax'
 
 
-task 'build:underscore', 'rebuild the Underscore.coffee documentation page', ->
-  exec 'uv -s coffeescript -t idle -h examples/underscore.coffee > documentation/underscore.html'
-
-
 task 'build:browser', 'rebuild the merged script for inclusion in the browser', ->
-  exec 'rake browser'
+  exec 'rake browser', (err) ->
+    throw err if err
 
 
-task 'doc', 'watch and continually rebuild the documentation', ->
+task 'doc:site', 'watch and continually rebuild the documentation for the website', ->
   exec 'rake doc'
 
 
+task 'doc:source', 'rebuild the internal documentation', ->
+  exec 'docco src/*.coffee && cp -rf docs documentation && rm -r docs', (err) ->
+    throw err if err
+
+
+task 'doc:underscore', 'rebuild the Underscore.coffee documentation page', ->
+  exec 'docco examples/underscore.coffee && cp -rf docs documentation && rm -r docs', (err) ->
+    throw err if err
+
+
 task 'test', 'run the CoffeeScript language test suite', ->
-  process.mixin require 'assert'
-  test_count: 0
-  start_time: new Date()
-  [original_ok, original_throws]: [ok, throws]
-  process.mixin {
-    ok:     (args...) -> test_count += 1; original_ok(args...)
-    throws: (args...) -> test_count += 1; original_throws(args...)
+  helpers.extend global, require 'assert'
+  passed_tests: failed_tests: 0
+  start_time:   new Date()
+  original_ok:  ok
+  helpers.extend global, {
+    ok: (args...) -> passed_tests += 1; original_ok(args...)
+    CoffeeScript: CoffeeScript
   }
+  red: '\033[0;31m'
+  green: '\033[0;32m'
+  reset: '\033[0m'
   process.addListener 'exit', ->
     time: ((new Date() - start_time) / 1000).toFixed(2)
-    puts '\033[0;32mpassed ' + test_count + ' tests in ' + time + ' seconds\033[0m'
+    message: "passed $passed_tests tests in $time seconds$reset"
+    puts(if failed_tests then "${red}failed $failed_tests and $message" else "$green$message")
   fs.readdir 'test', (err, files) ->
-    for file in files
-      fs.readFile 'test/' + file, (err, source) ->
-        js: coffee.compile source
-        process.compile js, file
+    files.forEach (file) ->
+      return unless file.match(/\.coffee$/i)
+      source: path.join 'test', file
+      fs.readFile source, (err, code) ->
+        try
+          CoffeeScript.run code.toString(), {source: source}
+        catch err
+          failed_tests += 1
+          puts "${red}failed:${reset} $source"
+          puts err.stack

README

@@ -34,8 +34,29 @@
   To suggest a feature, report a bug, or general discussion:
   http://github.com/jashkenas/coffee-script/issues/
   
-  If you'd like to chat, drop by #coffeescript on Freenode.
+  If you'd like to chat, drop by #coffeescript on Freenode IRC,
+  or on webchat.freenode.net.
 
   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

@@ -7,7 +7,7 @@ require 'yui/compressor'
 desc "Build the documentation page"
 task :doc do
   source = 'documentation/index.html.erb'
-  child = fork { exec "bin/coffee documentation/coffee/*.coffee -o documentation/js -w" }
+  child = fork { exec "bin/coffee -c documentation/coffee/*.coffee -o documentation/js -w" }
   at_exit { Process.kill("INT", child) }
   Signal.trap("INT") { exit }
   loop do
@@ -23,7 +23,7 @@ end
 
 desc "Build the single concatenated and minified script for the browser"
 task :browser do
-  sources = %w(rewriter.js lexer.js parser.js scope.js nodes.js coffee-script.js)
+  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) }

bin/cake

@@ -1,7 +1,8 @@
 #!/usr/bin/env node
 
-process.mixin(require('sys'));
+var path = require('path');
+var fs = require('fs');
+var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
 
-require.paths.unshift(__dirname + '/../lib');
-
-require('cake').run();
+require(lib + '/helpers').helpers.extend(global, require('sys'));
+require(lib + '/cake').run();

bin/coffee

@@ -1,7 +1,8 @@
 #!/usr/bin/env node
 
-process.mixin(require('sys'));
+var path = require('path');
+var fs = require('fs');
+var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
 
-require.paths.unshift(__dirname + '/../lib');
-
-require('command_line').run();
+require(lib + '/helpers').helpers.extend(global, require('sys'));
+require(lib + '/command').run();

documentation/coffee/arguments.coffee

@@ -1,4 +0,0 @@
-backwards: ->
-  alert arguments.reverse()
-
-backwards "stairway", "to", "heaven"

documentation/coffee/array_comprehensions.coffee

@@ -1,5 +1,5 @@
 # Eat lunch.
-lunch: eat(food) for food in ['toast', 'cheese', 'wine']
+lunch: eat food for food in ['toast', 'cheese', 'wine']
 
 # Naive collision detection.
 for roid in asteroids

documentation/coffee/binding.coffee

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

documentation/coffee/cake_tasks.coffee

@@ -1,5 +1,3 @@
-process.mixin require 'assert'
-
 task 'test', 'run each of the unit tests', ->
   for test in test_files
     fs.readFile test, (err, code) -> eval coffee.compile code

documentation/coffee/classes.coffee

@@ -0,0 +1,29 @@
+class Animal
+  move: (meters) ->
+    alert @name + " moved " + meters + "m."
+
+class Snake extends Animal
+  constructor: (name) ->
+    @name: name
+
+  move: ->
+    alert "Slithering..."
+    super 5
+
+class Horse extends Animal
+  constructor: (name) ->
+    @name: name
+
+  move: ->
+    alert "Galloping..."
+    super 45
+
+sam: new Snake "Sammy the Python"
+tom: new Horse "Tommy the Palomino"
+
+sam.move()
+tom.move()
+
+
+
+

documentation/coffee/conditionals.coffee

@@ -6,4 +6,4 @@ if happy and knows_it
 
 date: if friday then sue else jill
 
-expensive ||= do_the_math()
+expensive: or do_the_math()

documentation/coffee/interpolation.coffee

@@ -0,0 +1,2 @@
+author: "Wittgenstein"
+quote:  "A picture is a fact. -- $author"

documentation/coffee/interpolation_expression.coffee

@@ -0,0 +1,6 @@
+sentence: "${ 22 / 7 } is a decent approximation of π"
+
+sep:   "[.\\/\\- ]"
+dates: /\d+$sep\d+$sep\d+/g
+
+

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/patterns_and_splats.coffee

@@ -0,0 +1,7 @@
+tag: "<impossible>"
+
+[open, contents..., close]: tag.split("")
+
+
+
+

documentation/coffee/prototypes.coffee

@@ -0,0 +1,2 @@
+String::dasherize: ->
+  this.replace(/_/g, "-")

documentation/coffee/super.coffee

@@ -1,34 +0,0 @@
-Animal: ->
-
-Animal::move: (meters) ->
-  alert @name + " moved " + meters + "m."
-
-Snake: (name) ->
-  @name: name
-  this
-
-Snake extends Animal
-
-Snake::move: ->
-  alert "Slithering..."
-  super 5
-
-Horse: (name) ->
-  @name: name
-  this
-
-Horse extends Animal
-
-Horse::move: ->
-  alert "Galloping..."
-  super 45
-
-sam: new Snake "Sammy the Python"
-tom: new Horse "Tommy the Palomino"
-
-sam.move()
-tom.move()
-
-
-
-

documentation/coffee/while.coffee

@@ -1,7 +1,7 @@
 # Econ 101
 if this.studying_economics
-  while supply > demand then buy()
-  while supply < demand then sell()
+  buy()  while supply > demand
+  sell() until supply > demand
 
 # Nursery Rhyme
 num: 6

documentation/css/docs.css

@@ -8,7 +8,7 @@ div.container {
   width: 950px;
   margin: 100px 0 50px 50px;
 }
-p {
+p, li {
   width: 625px;
 }
 a {
@@ -105,6 +105,7 @@ div.code {
   position: fixed;
   z-index: 100;
   height: 50px;
+  min-width: 490px;
   left: 40px; right: 40px; top: 25px;
   background: #ddd;
   padding-left: 235px;
@@ -117,10 +118,23 @@ div.code {
   #logo {
     display: block;
     width: 215px; height: 50px;
-    background: url('logo.png');
+    background: url('../images/logo.png');
     position: absolute;
     top: 0px; left: 10px;
   }
+  #error {
+    position: absolute;
+    -webkit-border-radius: 6px; -moz-border-radius: 6px; border-radius: 6px;
+    right: 15px; top: 15px; left: 722px;
+    height: 15px;
+    padding: 2px 5px;
+    background: #fdcdcc;
+    color: #864544;
+    border: 1px solid #864544;
+    font: 10px/15px Arial;
+    overflow: hidden;
+    text-transform: uppercase;
+  }
   .navigation {
     height: 50px;
     font: bold 11px/50px Arial;
@@ -129,11 +143,14 @@ div.code {
     float: left;
     padding: 0 20px;
     border: 1px solid #bbb;
-    border-top: 0; border-bottom: 0;
+    border-top: 0; border-bottom: 0; border-left-width: 0;
     cursor: pointer;
   }
-    .navigation.try {
-      border-left: 0;
+    body.full_screen .navigation {
+      position: static;
+    }
+    .navigation.toc {
+      border-left-width: 1px;
     }
     .navigation:hover,
     .navigation.active {
@@ -161,20 +178,36 @@ div.code {
           width: 700px;
           padding: 0;
         }
+          body.full_screen .navigation .contents.repl_wrapper {
+            position: fixed;
+            width: auto; height: auto;
+            left: 60px; top: 75px; right: 60px; bottom: 30px;
+          }
           .navigation .contents.repl_wrapper .code {
             -webkit-box-shadow: none; -moz-box-shadow: none;
             background: transparent;
             border: 0;
+            position: static;
           }
+            body.full_screen .navigation .contents.repl_wrapper .code {
+              height: 100%;
+              padding: 0; margin: 0;
+            }
           .navigation .code button {
             bottom: 10px;
+            text-transform: none;
           }
-          .navigation .compile {
-            left: 240px; right: auto;
+          .navigation .full_screen, .navigation .minimize {
+            right: auto;
+            left: 10px;
+            display: none;
           }
+            body.minimized .full_screen, body.full_screen .minimize {
+              display: inline;
+            }
       .navigation .contents a {
         display: block;
-        width: 300px;
+        width: 290px;
         text-transform: none;
         text-decoration: none;
         font-weight: normal;
@@ -195,19 +228,40 @@ div.code {
 
 #repl_source, #repl_results {
   background: transparent;
+  outline: none;
+  margin: 5px 0 20px;
 }
-  #repl_source {
-    border: 0;
-    padding: 5px 7px;
+  #repl_source_wrap {
     margin-left: 5px;
-    min-height: 250px;
-    resize: none;
-    width: 295px;
+    height: 250px;
+    width: 307px;
+    position: relative;
+    float: left;
   }
+    #repl_source {
+      width: 96%;
+      height: 100%;
+      border: 0;
+      resize: none;
+    }
   #repl_results {
     font-family: Monaco, Consolas, "Lucida Console", monospace;
     text-transform: none;
     font-weight: normal;
-    min-height: 260px;
-    width: 355px;
-  }
+    height: 260px;
+    margin-bottom: 25px;
+    overflow-y: auto;
+    width: 370px;
+  }
+    body.full_screen #repl_results, body.full_screen #repl_source_wrap {
+      width: auto; height: auto;
+      position: absolute;
+      margin-bottom: 0;
+      top: 10px; left: 10px; right: 10px; bottom: 40px;
+    }
+      body.full_screen #repl_source_wrap {
+        right: 50%;
+      }
+      body.full_screen #repl_results {
+        left: 50%;
+      }

documentation/css/idle.css

@@ -57,6 +57,7 @@ pre.idle .FunctionName {
    color: #21439C;
 }
 pre.idle .Variable {
+  color: #A535AE;
 }
 pre.idle .Comment {
    color: #919191;

documentation/docs/cake.html

@@ -0,0 +1,45 @@
+<!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>
+
+<p>Running <code>cake</code> with no arguments will print out a list of all the tasks in the
+current directory's Cakefile.</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">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">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>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, 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="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="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,
+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">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
+asynchrony may cause tasks to execute in a different order than you'd expect.
+If no tasks are passed, print the help screen.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.run: </span><span class="o">-&gt;</span>
+  <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="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="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">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="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 $desc&quot;</span>
+  <span class="nx">puts</span> <span class="nx">oparse</span><span class="p">.</span><span class="nx">help</span><span class="p">()</span> <span class="k">if</span> <span class="nx">switches</span><span class="p">.</span><span class="nx">length</span></pre></div>             </td>           </tr>                               <tr id="section-10">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-10">#</a>               </div>               <p>Print an error and exit when attempting to all an undefined task.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">no_such_task: </span><span class="p">(</span><span class="nx">task</span><span class="p">)</span> <span class="o">-&gt;</span>
+  <span class="nx">puts</span> <span class="s2">&quot;No such task: \&quot;$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

@@ -0,0 +1,65 @@
+<!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>
+
+<p>If included on a webpage, it will automatically sniff out, compile, and
+execute all scripts present in <code>text/coffeescript</code> tags.</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 dependencies correctly for both the server 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">path: </span>        <span class="nx">require</span> <span class="s1">&#39;path&#39;</span>
+  <span class="nv">Lexer: </span>       <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./lexer&#39;</span><span class="p">).</span><span class="nx">Lexer</span>
+  <span class="nv">parser: </span>      <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./parser&#39;</span><span class="p">).</span><span class="nx">parser</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="nx">helpers</span><span class="p">.</span><span class="nx">extend</span> <span class="nx">global</span><span class="p">,</span> <span class="nx">require</span> <span class="s1">&#39;./nodes&#39;</span>
+  <span class="k">if</span> <span class="nx">require</span><span class="p">.</span><span class="nx">registerExtension</span>
+    <span class="nx">require</span><span class="p">.</span><span class="nx">registerExtension</span> <span class="s1">&#39;.coffee&#39;</span><span class="p">,</span> <span class="p">(</span><span class="nx">content</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nx">compile</span> <span class="nx">content</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="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;0.6.2&#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><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
+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="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
+<code>.traverse()</code> with a callback.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">exports.nodes: </span><span class="p">(</span><span class="nx">code</span><span class="p">)</span> <span class="o">-&gt;</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></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="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
+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="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="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="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
+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="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="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>
+
+</pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/command.html

@@ -0,0 +1,126 @@
+<!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>
+<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>
+<span class="s1">    coffee path/to/script.coffee</span>
+<span class="s1">        &#39;&#39;&#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>The list of all the valid option flags that <code>coffee</code> knows how to handle.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">SWITCHES: </span><span class="p">[</span>
+  <span class="p">[</span><span class="s1">&#39;-c&#39;</span><span class="p">,</span> <span class="s1">&#39;--compile&#39;</span><span class="p">,</span>       <span class="s1">&#39;compile to JavaScript and save as .js files&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-i&#39;</span><span class="p">,</span> <span class="s1">&#39;--interactive&#39;</span><span class="p">,</span>   <span class="s1">&#39;run an interactive CoffeeScript REPL&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-o&#39;</span><span class="p">,</span> <span class="s1">&#39;--output [DIR]&#39;</span><span class="p">,</span>  <span class="s1">&#39;set the directory for compiled JavaScript&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-w&#39;</span><span class="p">,</span> <span class="s1">&#39;--watch&#39;</span><span class="p">,</span>         <span class="s1">&#39;watch scripts for changes, and recompile&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-p&#39;</span><span class="p">,</span> <span class="s1">&#39;--print&#39;</span><span class="p">,</span>         <span class="s1">&#39;print the compiled JavaScript to stdout&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-l&#39;</span><span class="p">,</span> <span class="s1">&#39;--lint&#39;</span><span class="p">,</span>          <span class="s1">&#39;pipe the compiled JavaScript through JSLint&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-s&#39;</span><span class="p">,</span> <span class="s1">&#39;--stdio&#39;</span><span class="p">,</span>         <span class="s1">&#39;listen for and compile scripts over stdio&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-e&#39;</span><span class="p">,</span> <span class="s1">&#39;--eval&#39;</span><span class="p">,</span>          <span class="s1">&#39;compile a string from the command line&#39;</span><span class="p">]</span>
+  <span class="p">[</span>      <span class="s1">&#39;--no-wrap&#39;</span><span class="p">,</span>       <span class="s1">&#39;compile without the top-level function wrapper&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-t&#39;</span><span class="p">,</span> <span class="s1">&#39;--tokens&#39;</span><span class="p">,</span>        <span class="s1">&#39;print the tokens that the lexer produces&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-n&#39;</span><span class="p">,</span> <span class="s1">&#39;--nodes&#39;</span><span class="p">,</span>         <span class="s1">&#39;print the parse tree that Jison produces&#39;</span><span class="p">]</span>
+  <span class="p">[</span><span class="s1">&#39;-v&#39;</span><span class="p">,</span> <span class="s1">&#39;--version&#39;</span><span class="p">,</span>       <span class="s1">&#39;display CoffeeScript version&#39;</span><span class="p">]</span>
+  <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.
+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="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="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">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="nv">process.ARGV: process.argv: </span><span class="nx">flags</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. If a directory is passed, recursively compile all source
+files in it and all subdirectories.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">compile_scripts: </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="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">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">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">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></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">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">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="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">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="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">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">write_js</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="nv">code: </span><span class="s1">&#39;&#39;</span>
+  <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">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 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">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="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">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="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">src_dir: </span> <span class="nx">path</span><span class="p">.</span><span class="nx">dirname</span> <span class="nx">source</span>
+  <span class="nv">base_dir: </span><span class="nx">src_dir</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">base_dir</span> <span class="k">else</span> <span class="nx">src_dir</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="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">js_path</span><span class="p">,</span> <span class="nx">js</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">print_it: </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">print_it</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">print_it</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">print_tokens: </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>
+  <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="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">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">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> 

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documentation/docs/grammar.html

@@ -0,0 +1,423 @@
+<!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>
+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
+<a href="http://en.wikipedia.org/wiki/Bottom-up_parsing">attempts to match</a>
+the token sequence against the rules below. When a match can be made, it
+reduces into the <a href="http://en.wikipedia.org/wiki/Terminal_and_nonterminal_symbols">nonterminal</a>
+(the enclosing name at the top), and we proceed from there.</p>
+
+<p>If you run the <code>cake build:parser</code> command, Jison constructs a parse table
+from our rules and saves it into <code>lib/parser.js</code>.</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>The only dependency is on the <strong>Jison.Parser</strong>.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">Parser: </span><span class="nx">require</span><span class="p">(</span><span class="s1">&#39;jison&#39;</span><span class="p">).</span><span class="nx">Parser</span></pre></div>             </td>           </tr>                               <tr id="section-3">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-3">#</a>               </div>               <h2>Jison DSL</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>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.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">unwrap: </span><span class="sr">/function\s*\(\)\s*\{\s*return\s*([\s\S]*);\s*\}/</span></pre></div>             </td>           </tr>                               <tr id="section-5">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-5">#</a>               </div>               <p>Our handy DSL for Jison grammar generation, thanks to
+<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;$$ = $1;&#39;</span><span class="p">,</span> <span class="nx">options</span><span class="p">]</span> <span class="nx">unless</span> <span class="nx">action</span>
+  <span class="nv">action: </span><span class="k">if</span> <span class="nv">match: </span><span class="p">(</span><span class="nx">action</span> <span class="o">+</span> <span class="s1">&#39;&#39;</span><span class="p">).</span><span class="nx">match</span><span class="p">(</span><span class="nx">unwrap</span><span class="p">)</span> <span class="k">then</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="k">else</span> <span class="s2">&quot;($action())&quot;</span>
+  <span class="p">[</span><span class="nx">pattern_string</span><span class="p">,</span> <span class="s2">&quot;$$ = $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
+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>
+
+<pre><code>"Expression UNLESS Expression"
+</code></pre>
+
+<p><code>$1</code> would be the value of the first <code>Expression</code>, <code>$2</code> would be the token
+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;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 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;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>
+    <span class="nx">o</span> <span class="s2">&quot;Extends&quot;</span>
+    <span class="nx">o</span> <span class="s2">&quot;Class&quot;</span>
+    <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-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 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="p">()</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-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">$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">$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-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-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-20">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-20">#</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">$1</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> <span class="s1">&#39;herecomment&#39;</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-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-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-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-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">$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-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-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;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;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>
+    <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">AccessorNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">LiteralNode</span><span class="p">(</span><span class="s1">&#39;prototype&#39;</span><span class="p">))</span>
+    <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-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-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 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></pre></div>             </td>           </tr>                               <tr id="section-39">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-39">#</a>               </div>               <p>Binds a function call to a context and/or arguments.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <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-40">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-40">#</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;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-41">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-41">#</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-42">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-42">#</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-43">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-43">#</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 OptComma 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-44">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-44">#</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-45">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-45">#</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-46">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-46">#</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-47">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-47">#</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-48">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-48">#</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-49">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-49">#</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 OptComma OUTDENT&quot;</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>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-51">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-51">#</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-52">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-52">#</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-53">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-53">#</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-54">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-54">#</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;( 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-55">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-55">#</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></pre></div>             </td>           </tr>                               <tr id="section-56">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-56">#</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="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-57">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-57">#</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;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">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="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-58">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-58">#</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-59">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-59">#</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-60">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-60">#</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;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-61">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-61">#</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;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-62">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-62">#</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">switches_over</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">switches_over</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="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">add_else</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-63">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-63">#</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">add_else</span> <span class="nx">$2</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>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="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-65">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-65">#</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>
+    <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;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;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-66">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-66">#</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-67">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-67">#</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-68">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-68">#</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;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-69">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-69">#</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>
+-type rule, but in order to make the precedence binding possible, separate
+rules are necessary.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">Operation: </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">OpNode</span> <span class="s1">&#39;!&#39;</span><span class="p">,</span> <span class="nx">$2</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">OpNode</span> <span class="s1">&#39;!!&#39;</span><span class="p">,</span> <span class="nx">$2</span>
+    <span class="nx">o</span><span class="p">(</span><span class="s2">&quot;- Expression&quot;</span><span class="p">,</span>                           <span class="p">(</span><span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span><span class="p">(</span><span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="nx">$2</span><span class="p">)),</span> <span class="p">{</span><span class="nv">prec: </span><span class="s1">&#39;UMINUS&#39;</span><span class="p">})</span>
+    <span class="nx">o</span><span class="p">(</span><span class="s2">&quot;+ Expression&quot;</span><span class="p">,</span>                           <span class="p">(</span><span class="o">-&gt;</span> <span class="k">new</span> <span class="nx">OpNode</span><span class="p">(</span><span class="s1">&#39;+&#39;</span><span class="p">,</span> <span class="nx">$2</span><span class="p">)),</span> <span class="p">{</span><span class="nv">prec: </span><span class="s1">&#39;UPLUS&#39;</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">OpNode</span> <span class="s1">&#39;~&#39;</span><span class="p">,</span> <span class="nx">$2</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">OpNode</span> <span class="s1">&#39;--&#39;</span><span class="p">,</span> <span class="nx">$2</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">OpNode</span> <span class="s1">&#39;++&#39;</span><span class="p">,</span> <span class="nx">$2</span>
+    <span class="nx">o</span> <span class="s2">&quot;DELETE 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;delete&#39;</span><span class="p">,</span> <span class="nx">$2</span>
+    <span class="nx">o</span> <span class="s2">&quot;TYPEOF 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;typeof&#39;</span><span class="p">,</span> <span class="nx">$2</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">OpNode</span> <span class="s1">&#39;--&#39;</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="kc">true</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">OpNode</span> <span class="s1">&#39;++&#39;</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="kc">true</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 % 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>
+
+    <span class="nx">o</span> <span class="s2">&quot;Expression &lt;&lt; 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;&lt;&lt;&#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 &gt;&gt; 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;&gt;&gt;&#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 &gt;&gt;&gt; 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;&gt;&gt;&gt;&#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 &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;&#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 &lt;= 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;&lt;=&#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 &lt; 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;&lt;&#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 &gt; 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;&gt;&#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 &gt;= 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;&gt;=&#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 &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 -= 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>
+    <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 ||= 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 &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 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="p">]</span>
+
+<span class="p">}</span></pre></div>             </td>           </tr>                               <tr id="section-70">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-70">#</a>               </div>               <h2>Precedence</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-71">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-71">#</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)
+</code></pre>
+
+<p>And not:</p>
+
+<pre><code>(2 + 3) * 4
+</code></pre>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">operators: </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;nonassoc&quot;</span><span class="p">,</span>  <span class="s1">&#39;UMINUS&#39;</span><span class="p">,</span> <span class="s1">&#39;UPLUS&#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="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="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="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;&lt;&lt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&gt;&gt;&#39;</span><span class="p">,</span> <span class="s1">&#39;&gt;&gt;&gt;&#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;&#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="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;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;WHILE&#39;</span><span class="p">,</span> <span class="s1">&#39;UNTIL&#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="p">]</span></pre></div>             </td>           </tr>                               <tr id="section-72">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-72">#</a>               </div>               <h2>Wrapping Up</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-73">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-73">#</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>
+<span class="k">for</span> <span class="nx">name</span><span class="p">,</span> <span class="nx">alternatives</span> <span class="k">of</span> <span class="nx">grammar</span>
+  <span class="nx">grammar</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span><span class="o">:</span> <span class="k">for</span> <span class="nx">alt</span> <span class="k">in</span> <span class="nx">alternatives</span>
+    <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-74">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-74">#</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>
+  <span class="nv">tokens: </span>      <span class="nx">tokens</span><span class="p">.</span><span class="nx">join</span> <span class="s1">&#39; &#39;</span>
+  <span class="nv">bnf: </span>         <span class="nx">grammar</span>
+  <span class="nv">operators: </span>   <span class="nx">operators</span><span class="p">.</span><span class="nx">reverse</span><span class="p">()</span>
+  <span class="nv">startSymbol: </span> <span class="s1">&#39;Root&#39;</span>
+<span class="p">}</span>
+
+</pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/helpers.html

@@ -0,0 +1,64 @@
+<!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>Cross-browser indexOf, so that IE can join the party.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">helpers.index_of: index_of: </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">index_of</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">index_of</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">index_of</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-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-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-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-12">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-12">#</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>
+
+</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

@@ -0,0 +1,383 @@
+<!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]
+</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="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="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="nx">balanced_string</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
+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.</p>
+
+<p>Each tokenizing method is responsible for incrementing <code>@i</code> by the number of
+characters it has consumed. <code>@i</code> can be thought of as our finger on the page
+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="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">@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">@extract_next_token</span><span class="p">()</span>
+    <span class="nx">@close_indentation</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="nx">@extension_token</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@identifier_token</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@number_token</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@heredoc_token</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@regex_token</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@comment_token</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@line_token</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@whitespace_token</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@js_token</span><span class="p">()</span>
+    <span class="k">return</span> <span class="k">if</span> <span class="nx">@string_token</span><span class="p">()</span>
+    <span class="k">return</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.
+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="nx">@match</span> <span class="nx">IDENTIFIER</span><span class="p">,</span> <span class="mi">1</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="nx">@tag</span> <span class="mi">0</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="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="nx">@tag</span><span class="p">()</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="nx">unless</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="nx">@tag_half_assignment</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="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="nx">@match</span> <span class="nx">NUMBER</span><span class="p">,</span> <span class="mi">1</span>
+    <span class="nx">@token</span> <span class="s1">&#39;NUMBER&#39;</span><span class="p">,</span> <span class="nx">number</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="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="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="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="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="nx">@interpolate_string</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-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="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">@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="p">{</span><span class="nx">quote</span><span class="p">}</span>
+    <span class="nx">@interpolate_string</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-14">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-14">#</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">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="k">if</span> <span class="nx">match</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span>
+      <span class="nv">comment: </span><span class="nx">@sanitize_heredoc</span> <span class="nx">match</span><span class="p">[</span><span class="mi">3</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="k">else</span>
+      <span class="nv">lines: </span><span class="nx">compact</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</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="nx">MULTILINER</span>
+      <span class="nv">i: </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="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="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="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="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="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="nx">@line</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="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 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="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">@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="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-16">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-16">#</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="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">@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="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="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">@interpolate_string</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="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-17">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-17">#</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="nx">@chunk</span><span class="p">,</span> <span class="nx">delimited</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.
+If we can detect that the current line is continued onto the the next line,
+then the newline is suppressed:</p>
+
+<pre><code>elements
+  .each( ... )
+  .map( ... )
+</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="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="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="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">@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="nx">@newline_token</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">@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="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="nx">@outdent_token</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="vi">@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="nx">@indents</span><span class="p">.</span><span class="nx">length</span>
+      <span class="nv">last_indent: </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">last_indent</span>
+      <span class="nv">move_out: </span><span class="o">-</span> <span class="nx">last_indent</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">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="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="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-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="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-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="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-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>
+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="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="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="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">prev_spaced: </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="nx">ASSIGNMENT</span>
+      <span class="nv">tag: </span><span class="s1">&#39;ASSIGN&#39;</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="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="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="vi">@soaked_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">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">@soaked_index</span>
+      <span class="nv">tag: </span><span class="s1">&#39;SOAKED_INDEX_END&#39;</span>
+      <span class="vi">@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="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="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">@tag_half_assignment</span> <span class="nx">tag</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="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-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="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="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="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="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="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 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">sanitize_heredoc: </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="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="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-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
+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="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="nv">i: </span><span class="o">+</span> <span class="mi">1</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="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-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="nx">@outdent_token</span> <span class="nx">@indent</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
+<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>
+
+<pre><code>"Hello $name."
+"Hello ${name.capitalize()}."
+</code></pre>
+
+<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>
+    <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="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">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="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>
+          <span class="nv">i: </span><span class="o">+</span> <span class="mi">1</span>
+        <span class="k">else</span> <span class="k">if</span> <span class="nv">match: </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="nx">match</span> <span class="nx">INTERPOLATION</span>
+          <span class="p">[</span><span class="nx">group</span><span class="p">,</span> <span class="nx">interp</span><span class="p">]</span><span class="o">:</span> <span class="nx">match</span>
+          <span class="nv">interp: </span><span class="s2">&quot;this.${ interp.substring(1) }&quot;</span> <span class="k">if</span> <span class="nx">starts</span> <span class="nx">interp</span><span class="p">,</span> <span class="s1">&#39;@&#39;</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) }$quote&quot;</span><span class="p">]</span> <span class="k">if</span> <span class="nx">pi</span> <span class="o">&lt;</span> <span class="nx">i</span>
+          <span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">&#39;IDENTIFIER&#39;</span><span class="p">,</span> <span class="nx">interp</span><span class="p">]</span>
+          <span class="nv">i: </span><span class="o">+</span> <span class="nx">group</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span>
+          <span class="nv">pi: </span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span>
+        <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nv">expr: </span><span class="nx">balanced_string</span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">i</span><span class="p">),</span> <span class="p">[[</span><span class="s1">&#39;${&#39;</span><span class="p">,</span> <span class="s1">&#39;}&#39;</span><span class="p">]])</span>
+          <span class="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">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>
+            <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;$quote$quote&quot;</span><span class="p">]</span>
+          <span class="nv">i: </span><span class="o">+</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="nv">pi: </span><span class="nx">i</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">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="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">escape_quotes</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="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="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="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">new_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="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">new_tag</span> <span class="k">if</span> <span class="nx">new_tag</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="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="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="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="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>Lexer Properties</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>There are no exensions to the core lexer by default.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="vi">@extensions: </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>               <h2>Constants</h2>             </td>             <td class="code">               <div class="highlight"><pre></pre></div>             </td>           </tr>                               <tr id="section-43">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-43">#</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>
+  <span class="s2">&quot;try&quot;</span><span class="p">,</span> <span class="s2">&quot;catch&quot;</span><span class="p">,</span> <span class="s2">&quot;finally&quot;</span><span class="p">,</span> <span class="s2">&quot;throw&quot;</span><span class="p">,</span>
+  <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>
+  <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-44">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-44">#</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;until&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-45">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-45">#</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-46">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-46">#</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;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-47">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-47">#</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-48">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-48">#</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">/^(\b((0(x|X)[0-9a-fA-F]+)|([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">/^([+\*&amp;|\/\-%=&lt;&gt;:!?]+)([ \t]*)/</span>
+<span class="nv">WHITESPACE    : </span><span class="sr">/^([ \t]+)/</span>
+<span class="nv">COMMENT       : </span><span class="sr">/^((\n?[ \t]*)?#{3}(?!#)\n*([\s\S]*?)\n*([ \t]*)#{3}|((\n?[ \t]*)?#[^\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">/^(:|=)$/</span></pre></div>             </td>           </tr>                               <tr id="section-49">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-49">#</a>               </div>               <p>Regex-matching-regexes.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">REGEX_START        : </span><span class="sr">/^\/[^\/ ]/</span>
+<span class="nv">REGEX_INTERPOLATION: </span><span class="sr">/([^\\]\$[a-zA-Z_@]|[^\\]\$\{.*[^\\]\})/</span>
+<span class="nv">REGEX_END          : </span><span class="sr">/^(([imgy]{1,4})\b|\W)/</span>
+<span class="nv">REGEX_ESCAPE       : </span><span class="sr">/\\[^\$]/g</span></pre></div>             </td>           </tr>                               <tr id="section-50">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-50">#</a>               </div>               <p>Token cleaning regexes.</p>             </td>             <td class="code">               <div class="highlight"><pre><span class="nv">JS_CLEANER      : </span><span class="sr">/(^`|`$)/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">COMMENT_CLEANER : </span><span class="sr">/(^[ \t]*#|\n[ \t]*$)/mg</span>
+<span class="nv">NO_NEWLINE      : </span><span class="sr">/^([+\*&amp;|\/\-%=&lt;&gt;:!.\\][&lt;&gt;=&amp;|]*|and|or|is|isnt|not|delete|typeof|instanceof)$/</span>
+<span class="nv">HEREDOC_INDENT  : </span><span class="sr">/(\n+([ \t]*)|^([ \t]+))/g</span></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 a regular expression will never immediately follow, but which
+a division operator might.</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> <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 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> <span class="s1">&#39;THIS&#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 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-54">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-54">#</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-55">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-55">#</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-56">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-56">#</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>
+  <span class="s1">&#39;isnt&#39;</span><span class="o">:</span> <span class="s1">&#39;!=&#39;</span>
+  <span class="s1">&#39;not&#39;</span><span class="o">:</span>  <span class="s1">&#39;!&#39;</span>
+<span class="p">}</span>
+
+</pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/optparse.html

@@ -0,0 +1,67 @@
+<!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
+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>
+
+<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="vi">@banner: </span> <span class="nx">banner</span>
+    <span class="vi">@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
+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="p">(</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="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="k">break</span>
+      <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">&quot;unrecognized option: $arg&quot;</span> <span class="k">if</span> <span class="nx">is_option</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">matched_rule</span>
+      <span class="nx">options</span><span class="p">.</span><span class="nx">arguments</span><span class="p">.</span><span class="nx">push</span> <span class="nx">arg</span> <span class="nx">unless</span> <span class="nx">is_option</span>
+    <span class="nx">options</span></pre></div>             </td>           </tr>                               <tr id="section-4">             <td class="docs">               <div class="octowrap">                 <a class="octothorpe" href="#section-4">#</a>               </div>               <p>Return the help text for this <strong>OptionParser</strong>, listing and describing all
+of the valid options, for <code>--help</code> and such.</p>             </td>             <td class="code">               <div class="highlight"><pre>  <span class="nv">help: </span><span class="o">-&gt;</span>
+    <span class="nv">lines: </span><span class="p">[</span><span class="s1">&#39;Available options:&#39;</span><span class="p">]</span>
+    <span class="nx">lines</span><span class="p">.</span><span class="nx">unshift</span> <span class="s2">&quot;$@banner\n&quot;</span> <span class="k">if</span> <span class="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">long_flag</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="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>
+  <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="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">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="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>
+  <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>
+    <span class="k">if</span> <span class="nv">match: </span><span class="nx">arg</span><span class="p">.</span><span class="nx">match</span> <span class="nx">MULTI_FLAG</span>
+      <span class="nx">result</span><span class="p">.</span><span class="nx">push</span> <span class="s1">&#39;-&#39;</span> <span class="o">+</span> <span class="nx">l</span> <span class="k">for</span> <span class="nx">l</span> <span class="k">in</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">split</span> <span class="s1">&#39;&#39;</span>
+    <span class="k">else</span>
+      <span class="nx">result</span><span class="p">.</span><span class="nx">push</span> <span class="nx">arg</span>
+  <span class="nx">result</span>
+
+</pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/repl.html

@@ -0,0 +1,21 @@
+<!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">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">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">buffer</span><span class="p">.</span><span class="nx">toString</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="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>stdin</strong> and listening for input.</p>             </td>             <td class="code">               <div class="highlight"><pre><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="nx">run</span>
+<span class="nx">print</span> <span class="nx">prompt</span>
+
+</pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/rewriter.html

@@ -0,0 +1,228 @@
+<!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="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="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="vi">@tokens: </span><span class="nx">tokens</span>
+    <span class="nx">@adjust_comments</span><span class="p">()</span>
+    <span class="nx">@remove_leading_newlines</span><span class="p">()</span>
+    <span class="nx">@remove_mid_expression_newlines</span><span class="p">()</span>
+    <span class="nx">@close_open_calls_and_indexes</span><span class="p">()</span>
+    <span class="nx">@add_implicit_indentation</span><span class="p">()</span>
+    <span class="nx">@add_implicit_parentheses</span><span class="p">()</span>
+    <span class="nx">@ensure_balance</span> <span class="nx">BALANCED_PAIRS</span>
+    <span class="nx">@rewrite_closing_parens</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>
+    <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="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="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="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="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">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="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="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">remove_mid_expression_newlines: </span><span class="o">-&gt;</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">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="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>
+    <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="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">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="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>
+          <span class="k">if</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">is</span> <span class="mi">0</span>
+            <span class="nx">parens</span><span class="p">.</span><span class="nx">pop</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">:</span> <span class="s1">&#39;CALL_END&#39;</span>
+          <span class="k">else</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">if</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="mi">0</span>
+            <span class="nx">brackets</span><span class="p">.</span><span class="nx">pop</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">:</span> <span class="s1">&#39;INDEX_END&#39;</span>
+          <span class="k">else</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">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>
+    <span class="nv">stack: </span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+    <span class="nv">close_calls: </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">@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">tag: </span><span class="nx">token</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">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">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="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="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">close_calls</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="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="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">close_calls</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="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">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="nv">indent: </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="nv">indent.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="nv">idx: </span><span class="o">+</span> <span class="mi">1</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">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">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="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="nv">outdent: </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="nv">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">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="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>
+    <span class="nv">levels: </span><span class="p">{}</span>
+    <span class="nv">open_line: </span><span class="p">{}</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">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">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>
+      <span class="k">return</span> <span class="mi">1</span>
+    <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="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;
+  el.hide())
+</code></pre>
+
+<p>In order to accomplish this, move outdents that follow closing parens
+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 <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 manufacture, to make sure we end
+up balanced in the end.</li>
+<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">rewrite_closing_parens: </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="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">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>
+        <span class="nx">stack</span><span class="p">.</span><span class="nx">push</span> <span class="nx">token</span>
+        <span class="k">return</span> <span class="mi">1</span>
+      <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="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="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="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
+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> <span class="s1">&#39;@&#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;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-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;UNTIL&#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-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.
+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>
+
+</pre></div>             </td>           </tr>                </tbody>     </table>   </div> </body> </html> 

documentation/docs/scope.html

@@ -0,0 +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="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>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="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">@temp_var: </span><span class="nx">@parent</span><span class="p">.</span><span class="nx">temp_var</span>
+    <span class="k">else</span>
+      <span class="nv">Scope.root: </span><span class="k">this</span>
+      <span class="vi">@temp_var: </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="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="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">name</span><span class="p">]</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">free_variable: </span><span class="o">-&gt;</span>
+    <span class="k">while</span> <span class="nx">@check</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="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="vi">@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="nx">@variables</span><span class="p">[</span><span class="nx">@temp_var</span><span class="p">]</span><span class="o">:</span> <span class="s1">&#39;var&#39;</span>
+    <span class="nx">@temp_var</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">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="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">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="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">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="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">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="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">compiled_declarations: </span><span class="o">-&gt;</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-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">compiled_assignments: </span><span class="o">-&gt;</span>
+    <span class="nx">@assigned_variables</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

@@ -22,14 +22,15 @@
   <title>CoffeeScript</title>
   <link rel="stylesheet" type="text/css" href="documentation/css/docs.css" />
   <link rel="stylesheet" type="text/css" href="documentation/css/idle.css" />
+  <link rel="shortcut icon" href="documentation/images/favicon.ico" />
 </head>
-<body>
+<body class="minimized">
 
   <div id="fadeout"></div>
 
   <div id="flybar">
     <a id="logo" href="#top"> </a>
-    <div class="navigation">
+    <div class="navigation toc">
       <div class="button">
         Table of Contents
       </div>
@@ -45,23 +46,24 @@
         <a href="#conditionals">Conditionals, Ternaries, and Conditional Assignment</a>
         <a href="#aliases">Aliases</a>
         <a href="#splats">Splats...</a>
-        <a href="#arguments">Arguments are Arrays</a>
-        <a href="#while">While Loops</a>
+        <a href="#while">While &amp; Until Loops</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>
         <a href="#existence">The Existential Operator</a>
-        <a href="#inheritance">Inheritance, and Calling Super from a Subclass</a>
+        <a href="#classes">Classes, Inheritance, and Super</a>
         <a href="#pattern_matching">Pattern Matching</a>
         <a href="#fat_arrow">Function Binding</a>
         <a href="#embedded">Embedded JavaScript</a>
         <a href="#switch">Switch/When/Else</a>
         <a href="#try">Try/Catch/Finally</a>
         <a href="#comparisons">Chained Comparisons</a>
+        <a href="#interpolation">String and RegExp Interpolation</a>
         <a href="#strings">Multiline Strings and Heredocs</a>
         <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>
@@ -71,17 +73,37 @@
       </div>
       <div class="contents repl_wrapper">
         <div class="code">
-          <textarea id="repl_source">reverse: (string) ->
+          <div id="repl_source_wrap"><textarea id="repl_source">reverse: (string) ->
   string.split('').reverse().join ''
 
-alert reverse '!tpircseeffoC'</textarea>
+alert reverse '.eeffoC yrT'</textarea></div>
           <pre id="repl_results"></pre>
-          <button class="compile" onclick="javascript: repl_compile();">compile</button>
-          <button class="run" onclick="javascript: repl_run();">run</button>
+          <button class="full_screen">go full screen</button>
+          <button class="minimize">minimize</button>
+          <button class="run">run</button>
           <br class="clear" />
         </div>
       </div>
     </div>
+    <div class="navigation annotated">
+      <div class="button">
+        Annotated Source
+      </div>
+      <div class="contents">
+        <a href="documentation/docs/grammar.html">Grammar Rules &mdash; src/grammar</a>
+        <a href="documentation/docs/lexer.html">Lexing Tokens &mdash; src/lexer</a>
+        <a href="documentation/docs/rewriter.html">The Rewriter &mdash; src/rewriter</a>
+        <a href="documentation/docs/nodes.html">The Syntax Tree &mdash; src/nodes</a>
+        <a href="documentation/docs/scope.html">Lexical Scope &mdash; src/scope</a>
+        <a href="documentation/docs/helpers.html">Helpers &amp; Utility Functions &mdash; src/helpers</a>
+        <a href="documentation/docs/coffee-script.html">The CoffeeScript Module &mdash; src/coffee-script</a>
+        <a href="documentation/docs/cake.html">Cake &amp; Cakefiles &mdash; src/cake</a>
+        <a href="documentation/docs/command.html">"coffee" Command-Line Utility &mdash; src/command</a>
+        <a href="documentation/docs/optparse.html">Option Parsing &mdash; src/optparse</a>
+        <a href="documentation/docs/repl.html">Interactive REPL &mdash; src/repl</a>
+      </div>
+    </div>
+    <div id="error" style="display:none;"></div>
   </div>
 
   <div class="container">
@@ -108,7 +130,7 @@ alert reverse '!tpircseeffoC'</textarea>
 
     <p>
       <b>Latest Version:</b>
-      <a href="http://github.com/jashkenas/coffee-script/tarball/0.5.2">0.5.2</a>
+      <a href="http://github.com/jashkenas/coffee-script/tarball/0.6.2">0.6.2</a>
     </p>
 
     <h2>
@@ -122,7 +144,7 @@ alert reverse '!tpircseeffoC'</textarea>
 
     <p>
       For a longer CoffeeScript example, check out
-      <a href="documentation/underscore.html">Underscore.coffee</a>, a port
+      <a href="documentation/docs/underscore.html">Underscore.coffee</a>, a port
       of the <a href="http://documentcloud.github.com/underscore/">Underscore.js</a>
       library of helper functions. Underscore.coffee can pass the entire Underscore.js
       test suite. The CoffeeScript version is faster than the original for a number
@@ -140,7 +162,7 @@ alert reverse '!tpircseeffoC'</textarea>
 
     <p>
       The CoffeeScript compiler is written in pure CoffeeScript, using a
-      <a href="http://github.com/jashkenas/coffee-script/blob/master/src/grammar.coffee">small DSL</a>
+      <a href="documentation/docs/grammar.html">small DSL</a>
       on top of the <a href="http://github.com/zaach/jison">Jison parser generator</a>, and is available
       as a <a href="http://nodejs.org/">Node.js</a> utility. The core compiler however,
       does not depend on Node, and can be run in other server-side-JavaScript environments,
@@ -149,11 +171,12 @@ alert reverse '!tpircseeffoC'</textarea>
     </p>
 
     <p>
-      To install, first make sure you have a working version of
-      <a href="http://nodejs.org/">Node.js</a>, 0.1.30 or higher. Then clone the CoffeeScript
+      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/0.5.2">0.5.2</a>.
+      release: <a href="http://github.com/jashkenas/coffee-script/tarball/0.6.2">0.6.2</a>.
       To install the CoffeeScript compiler system-wide
       under <tt>/usr/local</tt>, open the directory and run:
     </p>
@@ -162,10 +185,9 @@ alert reverse '!tpircseeffoC'</textarea>
 sudo bin/cake install</pre>
 
     <p>
-      This provides the <tt>coffee</tt> command, which can
-      be used to compile CoffeeScript <tt>.coffee</tt> files into JavaScript, as
-      well as debug them. The <tt>coffee</tt>
-      command also provides direct evaluation and an interactive REPL.
+      This provides 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
       as <tt>.js</tt> files in the same directory by default, but output
       can be customized with the following options:
@@ -173,22 +195,25 @@ sudo bin/cake install</pre>
 
     <table>
       <tr>
-        <td width="25%"><code>-i, --interactive</code></td>
+        <td><code>-c, --compile</code></td>
         <td>
-          Launch an interactive CoffeeScript session to try short snippets.
+          Compile a <tt>.coffee</tt> script into a <tt>.js</tt> JavaScript file
+          of the same name.
         </td>
       </tr>
       <tr>
-        <td><code>-r, --run</code></td>
+        <td width="25%"><code>-i, --interactive</code></td>
         <td>
-          Compile and execute a given CoffeeScript without saving the intermediate
-          JavaScript.
+          Launch an interactive CoffeeScript session to try short snippets.
+          More pleasant if wrapped with
+          <a href="http://utopia.knoware.nl/~hlub/uck/rlwrap/rlwrap.html">rlwrap</a>.
         </td>
       </tr>
       <tr>
         <td><code>-o, --output [DIR]</code></td>
         <td>
           Write out all compiled JavaScript files into the specified directory.
+          Use in conjunction with <tt>--compile</tt> or <tt>--watch</tt>.
         </td>
       </tr>
       <tr>
@@ -220,18 +245,18 @@ sudo bin/cake install</pre>
         <td>
           Pipe in CoffeeScript to STDIN and get back JavaScript over STDOUT.
           Good for use with processes written in other languages. An example:<br />
-          <tt>cat src/cake.coffee | coffee -s</tt>
+          <tt>cat src/cake.coffee | coffee -sc</tt>
         </td>
       </tr>
       <tr>
         <td><code>-e, --eval</code></td>
         <td>
           Compile and print a little snippet of CoffeeScript directly from the
-          command line. For example:<br /><tt>coffee -e "square: (x) -> x * x"</tt>
+          command line. For example:<br /><tt>coffee -e "puts num for num in [10..1]"</tt>
         </td>
       </tr>
       <tr>
-        <td><code>-n, --no-wrap</code></td>
+        <td><code>--no-wrap</code></td>
         <td>
           Compile the JavaScript without the top-level function safety wrapper.
           (Used for CoffeeScript as a Node.js module.)
@@ -245,7 +270,7 @@ sudo bin/cake install</pre>
         </td>
       </tr>
       <tr>
-        <td><code>-tr, --tree</code></td>
+        <td><code>-n, --nodes</code></td>
         <td>
           Instead of compiling the CoffeeScript, just lex and parse it, and print
           out the parse tree:
@@ -266,7 +291,7 @@ Expressions
     </p>
 
     <pre>
-coffee path/to/script.coffee
+coffee -c path/to/script.coffee
 coffee --interactive
 coffee --watch --lint experimental.coffee
 coffee --print app/scripts/*.coffee > concatenation.js</pre>
@@ -371,6 +396,13 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       should not be able to change the value of the external variable of the same name, and
       therefore has a declaration of its own.
     </p>
+    <p>
+      This behavior is effectively identical to Ruby's scope for local variables.
+      Because you don't have direct access to the <tt>var</tt> keyword,
+      it's impossible to shadow an outer variable on purpose, you may only refer
+      to it. So be careful that you're not reusing the name of an external
+      variable accidentally, if you're writing a deeply nested function.
+    </p>
     <p>
       Although suppressed within this documentation for clarity, all
       CoffeeScript output is wrapped in an anonymous function:
@@ -400,10 +432,9 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     </p>
     <%= code_for('conditionals') %>
     <p>
-      The conditional assignment operators are included: <tt>||=</tt>,
-      which only assigns a value to a variable if the variable's current value
-      is falsy, and <tt>&amp;&amp;=</tt>, which only replaces the value of
-      truthy variables.
+      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
+      if the variable's current value is falsy.
     </p>
 
     <p>
@@ -450,19 +481,9 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     </p>
     <%= code_for('splats', true) %>
 
-    <p>
-      <span id="arguments" class="bookmark"></span>
-      <b class="header">Arguments are Arrays</b>
-      If you reference the <b>arguments object</b> directly, it will be converted
-      into a real Array, making all of the
-      <a href="https://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Objects/Array">Array methods</a>
-      available.
-    </p>
-    <%= code_for('arguments', true) %>
-
     <p>
       <span id="while" class="bookmark"></span>
-      <b class="header">While Loops</b>
+      <b class="header">While &amp; Until Loops</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
@@ -470,6 +491,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     </p>
     <%= code_for('while', 'lyrics.join("\n")') %>
     <p>
+      For readability, the <b>until</b> loop serves as an inverted <b>while</b> loop.
       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
       won't need to do that with CoffeeScript, either because you're using
@@ -589,8 +611,8 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     </p>
 
     <p>
-      <span id="inheritance" class="bookmark"></span>
-      <b class="header">Inheritance, and Calling Super from a Subclass</b>
+      <span id="classes" class="bookmark"></span>
+      <b class="header">Classes, Inheritance, and Super</b>
       JavaScript's prototypal inheritance has always been a bit of a
       brain-bender, with a whole family tree of libraries that provide a cleaner
       syntax for classical inheritance on top of JavaScript's prototypes:
@@ -604,12 +626,24 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       set the prototype chain.
     </p>
     <p>
-      CoffeeScript provides <tt>extends</tt>
-      to help with prototype setup, <tt>::</tt> for quick access to an
-      object's prototype, and converts <tt>super()</tt> into a call against
-      the immediate ancestor's method of the same name.
+      Instead of repetitively attaching functions to a prototype, CoffeeScript
+      provides a basic <tt>class</tt> structure that allows you to name your class,
+      set the superclass, assign prototypal properties, and define the constructor,
+      in a single assignable expression.
+    </p>
+    <%= code_for('classes', true) %>
+    <p>
+      If structuring your prototypes classically isn't your cup of tea, CoffeeScript
+      provides a couple of lower-level conveniences. The <tt>extends</tt> operator
+      helps with proper prototype setup, <tt>::</tt> gives you
+      quick access to an object's prototype, and <tt>super()</tt>
+      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>
-    <%= code_for('super', true) %>
 
     <p>
       <span id="pattern_matching" class="bookmark"></span>
@@ -632,12 +666,24 @@ 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>
+    <%= code_for('patterns_and_splats', 'contents.join("")') %>
 
     <p>
       <span id="fat_arrow" class="bookmark"></span>
       <b class="header">Function binding</b>
-      The fat arrow <tt>=></tt> can be used to both define a function, and to bind
+      In JavaScript, the <tt>this</tt> keyword is dynamically scoped to mean the
+      object that the current function is attached to. If you pass a function as
+      as callback, or attach it to a different object, the original value of <tt>this</tt>
+      will be lost. If you're not familiar with this behavior,
+      <a href="http://www.digital-web.com/articles/scope_in_javascript/">this Digital Web article</a>
+      gives a good overview of the quirks.
+    </p>
+    <p>
+      The fat arrow <tt>=&gt;</tt> can be used to both define a function, and to bind
       it to the current value of <tt>this</tt>, right on the spot. This is helpful
       when using callback-based libraries like Prototype or jQuery, for creating
       iterator functions to pass to <tt>each</tt>, or event-handler functions
@@ -645,6 +691,20 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       properties of the <tt>this</tt> where they're defined.
     </p>
     <%= code_for('fat_arrow') %>
+    <p>
+      If we had used <tt>-></tt> in the callback above, <tt>@customer</tt> would
+      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>
@@ -691,6 +751,20 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     </p>
     <%= code_for('comparisons', 'healthy') %>
 
+    <p>
+      <span id="interpolation" class="bookmark"></span>
+      <b class="header">String and RegExp Interpolation</b>
+      A version of <a href="http://wiki.ecmascript.org/doku.php?id=strawman:string_interpolation">ECMAScript Harmony's proposed string interpolation</a>
+      is included in CoffeeScript. Simple variables can be included by marking
+      them with a dollar sign.
+    </p>
+    <%= code_for('interpolation', 'quote') %>
+    <p>
+      And arbitrary expressions can be interpolated by using brackets <tt>${ ... }</tt><br />
+      Interpolation works the same way within regular expressions.
+    </p>
+    <%= code_for('interpolation_expression', 'sentence') %>
+
     <p>
       <span id="strings" class="bookmark"></span>
       <b class="header">Multiline Strings and Heredocs</b>
@@ -704,6 +778,9 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       you can keep it all aligned with the body of your code.
     </p>
     <%= code_for('heredocs') %>
+    <p>
+      Double-quoted heredocs, like double-quoted strings, allow interpolation.
+    </p>
 
     <h2>
       <span id="cake" class="bookmark"></span>
@@ -734,20 +811,20 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
     <p>
       While it's not recommended for serious use, CoffeeScripts may be included
       directly within the browser using <tt>&lt;script type="text/coffeescript"&gt;</tt>
-      tags. The codebase includes a compressed and minified version of the compiler
-      (<a href="extras/coffee-script.js">Download current version here, 43k when gzipped</a>).
-      Include <tt>coffee-script.js</tt> on the page <b>after</b> any <tt>text/coffeescript</tt> tags
-      with inline CoffeeScript, and it will compile and evaluate them in order.
+      tags. The source includes a compressed and minified version of the compiler
+      (<a href="extras/coffee-script.js">Download current version here, 43k when gzipped</a>)
+      as <tt>extras/coffee-script.js</tt>. Include this file on a page with
+      inline CoffeeScript tags, and it will compile and evaluate them in order.
     </p>
 
     <p>
       In fact, the little bit of glue script that runs "Try CoffeeScript" above,
-      as well as jQuery for the menu, is implemented in just this way. 
+      as well as jQuery for the menu, is implemented in just this way.
       View source and look at the bottom of the page to see the example.
       Including the script also gives you access to <tt>CoffeeScript.compile()</tt>
       so you can pop open Firebug and try compiling some strings.
     </p>
-    
+
     <p>
       The usual caveats about CoffeeScript apply &mdash; your inline scripts will
       run within a closure wrapper, so if you want to expose global variables or
@@ -766,22 +843,152 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
         <tt>bin/cake test</tt> to run the test suite,<br />
         <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.
+        working on the grammar. <br /><br />
+        <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
+        they pass, there's a good chance you've made a successful change.
       </li>
       <li>
         <a href="http://github.com/jashkenas/coffee-script/issues">CoffeeScript Issues</a><br />
         Bugs reports, feature requests, and general discussion all belong here.
       </li>
       <li>
-        If you'd like to chat, stop by <tt>#coffeescript</tt> on Freenode.
+        If you'd like to chat, stop by <tt>#coffeescript</tt> on Freenode in the
+        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.
+      </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>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>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>
     </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;">0.6.2</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>
+      Interpolation can now be used within regular expressions and heredocs, as well as
+      strings. Added the <tt>&lt;-</tt> bind operator.
+      Allowing assignment to half-expressions instead of special <tt>||=</tt>-style
+      operators. The arguments object is no longer automatically converted into
+      an array. After requiring <tt>coffee-script</tt>, Node.js can now directly
+      load <tt>.coffee</tt> files, thanks to <b>registerExtension</b>. Multiple
+      splats can now be used in function calls, arrays, and pattern matching.
+    </p>
+
+    <p>
+      <b class="header" style="margin-top: 20px;">0.5.5</b>
+      String interpolation, contributed by
+      <a href="http://github.com/StanAngeloff">Stan Angeloff</a>.
+      Since <tt>--run</tt> has been the default since <b>0.5.3</b>, updating
+      <tt>--stdio</tt> and <tt>--eval</tt> to run by default, pass <tt>--compile</tt>
+      as well if you'd like to print the result.
+    </p>
+
+    <p>
+      <b class="header" style="margin-top: 20px;">0.5.4</b>
+      Bugfix that corrects the Node.js global constants <tt>__filename</tt> and
+      <tt>__dirname</tt>. Tweaks for more flexible parsing of nested function
+      literals and improperly-indented comments. Updates for the latest Node.js API.
+    </p>
+
+    <p>
+      <b class="header" style="margin-top: 20px;">0.5.3</b>
+      CoffeeScript now has a syntax for defining classes. Many of the core
+      components (Nodes, Lexer, Rewriter, Scope, Optparse) are using them.
+      Cakefiles can use <tt>optparse.coffee</tt> to define options for tasks.
+      <tt>--run</tt> is now the default flag for the <tt>coffee</tt> command,
+      use <tt>--compile</tt> to save JavaScripts. Bugfix for an ambiguity between
+      RegExp literals and chained divisions.
+    </p>
+
     <p>
       <b class="header" style="margin-top: 20px;">0.5.2</b>
       Added a compressed version of the compiler for inclusion in web pages as
@@ -789,7 +996,7 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
       with type <tt>text/coffeescript</tt> for you. Added a <tt>--stdio</tt> option
       to the <tt>coffee</tt> command, for piped-in compiles.
     </p>
-    
+
 
     <p>
       <b class="header" style="margin-top: 20px;">0.5.1</b>
@@ -963,27 +1170,37 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
 
   <script type="text/coffeescript">
 
-    window.repl_compile: ->
+    # Set up the compilation function, to run when you stop typing.
+    compile_source: ->
       source: $('#repl_source').val()
       window.compiled_js: ''
       try
         window.compiled_js: CoffeeScript.compile source, {no_wrap: true}
-      catch error then alert error
-      $('#repl_results').html window.compiled_js
+        $('#repl_results').text window.compiled_js
+        $('#error').hide();
+      catch error
+        $('#error').text(error.message).show();
 
-    window.repl_run: ->
+    # Listen for keypresses and recompile.
+    $('#repl_source').keyup -> compile_source()
+
+    # Eval the compiled js.
+    $('button.run').click ->
       try
         eval window.compiled_js
       catch error then alert error
 
-    nav: $('.navigation')
     current_nav: null
 
+    # Helper to hide the menus.
     close_menus: ->
-      current_nav.removeClass 'active' if current_nav
+      if current_nav
+        current_nav.removeClass 'active'
+        document.body.className: 'minimized'
       current_nav: null
 
-    nav.click (e) ->
+    # Bind navigation buttons to open the menus.
+    $('.navigation').click (e) ->
       return if e.target.tagName.toLowerCase() is 'a'
       if this isnt (current_nav and current_nav[0])
         close_menus();
@@ -993,6 +1210,17 @@ coffee --print app/scripts/*.coffee > concatenation.js</pre>
 
     $(document.body).click -> close_menus()
 
+    $('.navigation .full_screen').click ->
+      document.body.className: 'full_screen'
+
+    $('.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>
 
   <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>

documentation/js/arguments.js

@@ -1,8 +0,0 @@
-(function(){
-  var backwards;
-  backwards = function backwards() {
-    arguments = Array.prototype.slice.call(arguments, 0);
-    return alert(arguments.reverse());
-  };
-  backwards("stairway", "to", "heaven");
-})();

documentation/js/array_comprehensions.js

@@ -1,21 +1,21 @@
 (function(){
-  var _a, _b, _c, _d, _e, _f, _g, food, lunch, roid, roid2;
+  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; _c < _b.length; _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.
-  _d = asteroids;
-  for (_e = 0; _e < _d.length; _e++) {
-    roid = _d[_e];
-    _f = asteroids;
-    for (_g = 0; _g < _f.length; _g++) {
-      roid2 = _f[_g];
+  _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

@@ -0,0 +1,13 @@
+(function(){
+  var get_source, url;
+  var __slice = Array.prototype.slice, __bind = function(func, obj, args) {
+    return function() {
+      return func.apply(obj || {}, args ? args.concat(__slice.call(arguments, 0)) : arguments);
+    };
+  };
+  url = "documentation/coffee/binding.coffee";
+  get_source = __bind(jQuery.get, jQuery, [url]);
+  get_source(function(response) {
+    return alert(response);
+  });
+})();

documentation/js/cake_tasks.js

@@ -1,10 +1,9 @@
 (function(){
-  process.mixin(require('assert'));
   task('test', 'run each of the unit tests', function() {
-    var _a, _b, _c, test;
-    _a = []; _b = test_files;
-    for (_c = 0; _c < _b.length; _c++) {
-      test = _b[_c];
+    var _a, _b, _c, _d, test;
+    _a = []; _c = test_files;
+    for (_b = 0, _d = _c.length; _b < _d; _b++) {
+      test = _c[_b];
       _a.push(fs.readFile(test, function(err, code) {
         return eval(coffee.compile(code));
       }));

documentation/js/classes.js

@@ -0,0 +1,39 @@
+(function(){
+  var Animal, Horse, Snake, sam, tom;
+  var __extends = function(child, parent) {
+    var ctor = function(){ };
+    ctor.prototype = parent.prototype;
+    child.__superClass__ = parent.prototype;
+    child.prototype = new ctor();
+    child.prototype.constructor = child;
+  };
+  Animal = function() {  };
+  Animal.prototype.move = function(meters) {
+    return alert(this.name + " moved " + meters + "m.");
+  };
+
+  Snake = function(name) {
+    this.name = name;
+    return this;
+  };
+  __extends(Snake, Animal);
+  Snake.prototype.move = function() {
+    alert("Slithering...");
+    return Snake.__superClass__.move.call(this, 5);
+  };
+
+  Horse = function(name) {
+    this.name = name;
+    return this;
+  };
+  __extends(Horse, Animal);
+  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();
+  tom.move();
+})();

documentation/js/expressions.js

@@ -1,10 +1,14 @@
 (function(){
   var eldest, grade;
-  grade = function grade(student) {
+  grade = function(student) {
     if (student.excellent_work) {
       return "A+";
     } else if (student.okay_stuff) {
-      return student.tried_hard ? "B" : "B-";
+      if (student.tried_hard) {
+        return "B";
+      } else {
+        return "B-";
+      }
     } else {
       return "C";
     }

documentation/js/expressions_assignment.js

@@ -1,4 +1,4 @@
 (function(){
   var one, six, three, two;
-  six = ((one = 1)) + ((two = 2)) + ((three = 3));
+  six = (one = 1) + (two = 2) + (three = 3);
 })();

documentation/js/expressions_comprehension.js

@@ -8,5 +8,5 @@
       _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

@@ -1,15 +1,15 @@
 (function(){
   var Account;
-  Account = function Account(customer, cart) {
+  var __slice = Array.prototype.slice, __bind = function(func, obj, args) {
+    return function() {
+      return func.apply(obj || {}, args ? args.concat(__slice.call(arguments, 0)) : arguments);
+    };
+  };
+  Account = function(customer, cart) {
     this.customer = customer;
     this.cart = cart;
-    return $('.shopping_cart').bind('click', (function(__this) {
-      var __func = function(event) {
+    return $('.shopping_cart').bind('click', __bind(function(event) {
         return this.customer.purchase(this.cart);
-      };
-      return (function() {
-        return __func.apply(__this, arguments);
-      });
-    })(this));
+      }, 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/heredocs.js

@@ -1,4 +1,4 @@
 (function(){
   var html;
-  html = "<strong>\n  cup of coffeescript\n</strong>";
+  html = '<strong>\n  cup of coffeescript\n</strong>';
 })();

documentation/js/interpolation.js

@@ -0,0 +1,5 @@
+(function(){
+  var author, quote;
+  author = "Wittgenstein";
+  quote = ("A picture is a fact. -- " + author);
+})();

documentation/js/interpolation_expression.js

@@ -0,0 +1,6 @@
+(function(){
+  var dates, sentence, sep;
+  sentence = ("" + (22 / 7) + " is a decent approximation of π");
+  sep = "[.\\/\\- ]";
+  dates = (new RegExp(("\\d+" + sep + "\\d+" + sep + "\\d+"), "g"));
+})();

documentation/js/multiple_return_values.js

@@ -1,6 +1,6 @@
 (function(){
   var _a, city, forecast, temp, weather_report;
-  weather_report = function weather_report(location) {
+  weather_report = function(location) {
     // Make an Ajax request to fetch the weather...
     return [location, 72, "Mostly Sunny"];
   };

documentation/js/object_comprehensions.js

@@ -13,5 +13,5 @@
       _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/overview.js

@@ -1,5 +1,6 @@
 (function(){
-  var _a, _b, _c, cubed_list, list, math, num, number, opposite_day, race, square;
+  var _a, _b, _c, _d, cubed_list, list, math, num, number, opposite_day, race, square;
+  var __slice = Array.prototype.slice;
   // Assignment:
   number = 42;
   opposite_day = true;
@@ -8,7 +9,7 @@
     number = -42;
   }
   // Functions:
-  square = function square(x) {
+  square = function(x) {
     return x * x;
   };
   // Arrays:
@@ -17,14 +18,15 @@
   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);
+    var _a = arguments.length, _b = _a >= 2;
+    runners = __slice.call(arguments, 1, _a - 0);
     return print(winner, runners);
   };
   // Existence:
@@ -33,11 +35,11 @@
   }
   // Array comprehensions:
   cubed_list = (function() {
-    _a = []; _b = list;
-    for (_c = 0; _c < _b.length; _c++) {
-      num = _b[_c];
+    _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/patterns_and_splats.js

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

documentation/js/prototypes.js

@@ -0,0 +1,5 @@
+(function(){
+  String.prototype.dasherize = function() {
+    return this.replace(/_/g, "-");
+  };
+})();

documentation/js/range_comprehensions.js

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

documentation/js/scope.js

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

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.draw_winner())) === "undefined" || _a == undefined ? undefined : _a.address == undefined ? undefined : _a.address.zipcode;
 })();

documentation/js/splats.js

@@ -1,12 +1,15 @@
 (function(){
   var award_medals, contenders, gold, silver, the_field;
+  var __slice = Array.prototype.slice;
   gold = (silver = (the_field = "unknown"));
-  award_medals = function award_medals(first, second) {
+  award_medals = function(first, second) {
     var rest;
-    rest = Array.prototype.slice.call(arguments, 2);
+    var _a = arguments.length, _b = _a >= 3;
+    rest = __slice.call(arguments, 2, _a - 0);
     gold = first;
     silver = second;
-    return the_field = rest;
+    the_field = rest;
+    return the_field;
   };
   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);

documentation/js/super.js

@@ -1,37 +0,0 @@
-(function(){
-  var Animal, Horse, Snake, _a, _b, sam, tom;
-  Animal = function Animal() {  };
-  Animal.prototype.move = function move(meters) {
-    return alert(this.name + " moved " + meters + "m.");
-  };
-  Snake = function Snake(name) {
-    this.name = name;
-    return this;
-  };
-  _a = function(){};
-  _a.prototype = Animal.prototype;
-  Snake.__superClass__ = Animal.prototype;
-  Snake.prototype = new _a();
-  Snake.prototype.constructor = Snake;
-  Snake.prototype.move = function move() {
-    alert("Slithering...");
-    return Snake.__superClass__.move.call(this, 5);
-  };
-  Horse = function Horse(name) {
-    this.name = name;
-    return this;
-  };
-  _b = function(){};
-  _b.prototype = Animal.prototype;
-  Horse.__superClass__ = Animal.prototype;
-  Horse.prototype = new _b();
-  Horse.prototype.constructor = Horse;
-  Horse.prototype.move = function move() {
-    alert("Galloping...");
-    return Horse.__superClass__.move.call(this, 45);
-  };
-  sam = new Snake("Sammy the Python");
-  tom = new Horse("Tommy the Palomino");
-  sam.move();
-  tom.move();
-})();

documentation/js/while.js

@@ -5,7 +5,7 @@
     while (supply > demand) {
       buy();
     }
-    while (supply < demand) {
+    while (!(supply > demand)) {
       sell();
     }
   }
@@ -18,5 +18,5 @@
 One fell out and bumped his head.");
     }
     return _a;
-  }).call(this);
+  })();
 })();

documentation/underscore.html

@@ -1,627 +0,0 @@
-<!DOCTYPE html>
-
-<head>
-  <meta http-equiv="content-type" content="text/html; charset=utf-8" />
-  <link rel="stylesheet" type="text/css" media="screen,projection,print" href="css/idle.css" />
-  <title>Underscore.coffee</title>
-
-</head>
-
-<body>
-<pre class="idle"><span class="line-numbers">   1 </span> 
-<span class="line-numbers">   2 </span>   <span class="Comment"><span class="Comment">#</span> Underscore.coffee</span>
-<span class="line-numbers">   3 </span>   <span class="Comment"><span class="Comment">#</span> (c) 2010 Jeremy Ashkenas, DocumentCloud Inc.</span>
-<span class="line-numbers">   4 </span>   <span class="Comment"><span class="Comment">#</span> Underscore is freely distributable under the terms of the MIT license.</span>
-<span class="line-numbers">   5 </span>   <span class="Comment"><span class="Comment">#</span> Portions of Underscore are inspired by or borrowed from Prototype.js,</span>
-<span class="line-numbers">   6 </span>   <span class="Comment"><span class="Comment">#</span> Oliver Steele's Functional, and John Resig's Micro-Templating.</span>
-<span class="line-numbers">   7 </span>   <span class="Comment"><span class="Comment">#</span> For all details and documentation:</span>
-<span class="line-numbers">   8 </span>   <span class="Comment"><span class="Comment">#</span> http://documentcloud.github.com/underscore/</span>
-<span class="line-numbers">   9 </span> 
-<span class="line-numbers">  10 </span> 
-<span class="line-numbers">  11 </span>   <span class="Comment"><span class="Comment">#</span> ------------------------- Baseline setup ---------------------------------</span>
-<span class="line-numbers">  12 </span> 
-<span class="line-numbers">  13 </span>   <span class="Comment"><span class="Comment">#</span> Establish the root object, &quot;window&quot; in the browser, or &quot;global&quot; on the server.</span>
-<span class="line-numbers">  14 </span>   <span class="FunctionName">root</span><span class="Keyword">:</span> <span class="Variable">this</span>
-<span class="line-numbers">  15 </span> 
-<span class="line-numbers">  16 </span> 
-<span class="line-numbers">  17 </span>   <span class="Comment"><span class="Comment">#</span> Save the previous value of the &quot;_&quot; variable.</span>
-<span class="line-numbers">  18 </span>   <span class="FunctionName">previousUnderscore</span><span class="Keyword">:</span> root._
-<span class="line-numbers">  19 </span> 
-<span class="line-numbers">  20 </span> 
-<span class="line-numbers">  21 </span>   <span class="Comment"><span class="Comment">#</span> If Underscore is called as a function, it returns a wrapped object that</span>
-<span class="line-numbers">  22 </span>   <span class="Comment"><span class="Comment">#</span> can be used OO-style. This wrapper holds altered versions of all the</span>
-<span class="line-numbers">  23 </span>   <span class="Comment"><span class="Comment">#</span> underscore functions. Wrapped objects may be chained.</span>
-<span class="line-numbers">  24 </span>   <span class="FunctionName">wrapper</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers">  25 </span>     <span class="FunctionName">this._wrapped</span><span class="Keyword">:</span> obj
-<span class="line-numbers">  26 </span>     <span class="Variable">this</span>
-<span class="line-numbers">  27 </span> 
-<span class="line-numbers">  28 </span> 
-<span class="line-numbers">  29 </span>   <span class="Comment"><span class="Comment">#</span> Establish the object that gets thrown to break out of a loop iteration.</span>
-<span class="line-numbers">  30 </span>   <span class="FunctionName">breaker</span><span class="Keyword">:</span> <span class="Keyword">if</span> <span class="Keyword">typeof</span>(StopIteration) <span class="Keyword">is</span> <span class="String"><span class="String">'</span>undefined<span class="String">'</span></span> <span class="Keyword">then</span> <span class="String"><span class="String">'</span>__break__<span class="String">'</span></span> <span class="Keyword">else</span> StopIteration
-<span class="line-numbers">  31 </span> 
-<span class="line-numbers">  32 </span> 
-<span class="line-numbers">  33 </span>   <span class="Comment"><span class="Comment">#</span> Create a safe reference to the Underscore object forreference below.</span>
-<span class="line-numbers">  34 </span>   <span class="FunctionName">_</span><span class="Keyword">:</span> <span class="FunctionName">root._</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> <span class="Keyword">new</span> <span class="TypeName">wrapper</span>(obj)
-<span class="line-numbers">  35 </span> 
-<span class="line-numbers">  36 </span> 
-<span class="line-numbers">  37 </span>   <span class="Comment"><span class="Comment">#</span> Export the Underscore object for CommonJS.</span>
-<span class="line-numbers">  38 </span>   <span class="Keyword">if</span> <span class="Keyword">typeof</span>(exports) <span class="Keyword">!</span><span class="Keyword">=</span> <span class="String"><span class="String">'</span>undefined<span class="String">'</span></span> <span class="Keyword">then</span> <span class="FunctionName">exports._</span><span class="Keyword">:</span> _
-<span class="line-numbers">  39 </span> 
-<span class="line-numbers">  40 </span> 
-<span class="line-numbers">  41 </span>   <span class="Comment"><span class="Comment">#</span> Create quick reference variables for speed access to core prototypes.</span>
-<span class="line-numbers">  42 </span>   <span class="FunctionName">slice</span><span class="Keyword">:</span>                <span class="FunctionName">Array:</span><span class="Keyword">:</span>slice
-<span class="line-numbers">  43 </span>   <span class="FunctionName">unshift</span><span class="Keyword">:</span>              <span class="FunctionName">Array:</span><span class="Keyword">:</span>unshift
-<span class="line-numbers">  44 </span>   <span class="FunctionName">toString</span><span class="Keyword">:</span>             <span class="FunctionName">Object:</span><span class="Keyword">:</span>toString
-<span class="line-numbers">  45 </span>   <span class="FunctionName">hasOwnProperty</span><span class="Keyword">:</span>       <span class="FunctionName">Object:</span><span class="Keyword">:</span>hasOwnProperty
-<span class="line-numbers">  46 </span>   <span class="FunctionName">propertyIsEnumerable</span><span class="Keyword">:</span> <span class="FunctionName">Object:</span><span class="Keyword">:</span>propertyIsEnumerable
-<span class="line-numbers">  47 </span> 
-<span class="line-numbers">  48 </span> 
-<span class="line-numbers">  49 </span>   <span class="Comment"><span class="Comment">#</span> Current version.</span>
-<span class="line-numbers">  50 </span>   <span class="FunctionName">_.VERSION</span><span class="Keyword">:</span> <span class="String"><span class="String">'</span>0.5.8<span class="String">'</span></span>
-<span class="line-numbers">  51 </span> 
-<span class="line-numbers">  52 </span> 
-<span class="line-numbers">  53 </span>   <span class="Comment"><span class="Comment">#</span> ------------------------ Collection Functions: ---------------------------</span>
-<span class="line-numbers">  54 </span> 
-<span class="line-numbers">  55 </span>   <span class="Comment"><span class="Comment">#</span> The cornerstone, an each implementation.</span>
-<span class="line-numbers">  56 </span>   <span class="Comment"><span class="Comment">#</span> Handles objects implementing forEach, arrays, and raw objects.</span>
-<span class="line-numbers">  57 </span>   <span class="FunctionName">_.each</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers">  58 </span>     <span class="FunctionName">index</span><span class="Keyword">:</span> <span class="Number">0</span>
-<span class="line-numbers">  59 </span>     <span class="Keyword">try</span>
-<span class="line-numbers">  60 </span>       <span class="Keyword">return</span> obj.forEach(iterator, context) <span class="Keyword">if</span> obj.forEach
-<span class="line-numbers">  61 </span>       <span class="Keyword">if</span> _.isNumber(obj.length)
-<span class="line-numbers">  62 </span>         <span class="Keyword">return</span> iterator.call(context, obj[i], i, obj) <span class="Keyword">for</span> i <span class="Keyword">in</span> [<span class="Number">0</span>...obj.length]
-<span class="line-numbers">  63 </span>       iterator.call(context, val, key, obj) <span class="Keyword">for</span> key, val <span class="Keyword">of</span> obj
-<span class="line-numbers">  64 </span>     <span class="Keyword">catch</span> e
-<span class="line-numbers">  65 </span>       <span class="Keyword">throw</span> e <span class="Keyword">if</span> e <span class="Keyword">isnt</span> breaker
-<span class="line-numbers">  66 </span>     obj
-<span class="line-numbers">  67 </span> 
-<span class="line-numbers">  68 </span> 
-<span class="line-numbers">  69 </span>   <span class="Comment"><span class="Comment">#</span> Return the results of applying the iterator to each element. Use JavaScript</span>
-<span class="line-numbers">  70 </span>   <span class="Comment"><span class="Comment">#</span> 1.6's version of map, if possible.</span>
-<span class="line-numbers">  71 </span>   <span class="FunctionName">_.map</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers">  72 </span>     <span class="Keyword">return</span> obj.map(iterator, context) <span class="Keyword">if</span> (obj <span class="Keyword">and</span> _.isFunction(obj.map))
-<span class="line-numbers">  73 </span>     <span class="FunctionName">results</span><span class="Keyword">:</span> []
-<span class="line-numbers">  74 </span>     _.each obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers">  75 </span>       results.push(iterator.call(context, value, index, list))
-<span class="line-numbers">  76 </span>     results
-<span class="line-numbers">  77 </span> 
-<span class="line-numbers">  78 </span> 
-<span class="line-numbers">  79 </span>   <span class="Comment"><span class="Comment">#</span> Reduce builds up a single result from a list of values. Also known as</span>
-<span class="line-numbers">  80 </span>   <span class="Comment"><span class="Comment">#</span> inject, or foldl. Uses JavaScript 1.8's version of reduce, if possible.</span>
-<span class="line-numbers">  81 </span>   <span class="FunctionName">_.reduce</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, memo, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers">  82 </span>     <span class="Keyword">return</span> obj.reduce(_.bind(iterator, context), memo) <span class="Keyword">if</span> (obj <span class="Keyword">and</span> _.isFunction(obj.reduce))
-<span class="line-numbers">  83 </span>     _.each obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers">  84 </span>       <span class="FunctionName">memo</span><span class="Keyword">:</span> iterator.call(context, memo, value, index, list)
-<span class="line-numbers">  85 </span>     memo
-<span class="line-numbers">  86 </span> 
-<span class="line-numbers">  87 </span> 
-<span class="line-numbers">  88 </span>   <span class="Comment"><span class="Comment">#</span> The right-associative version of reduce, also known as foldr. Uses</span>
-<span class="line-numbers">  89 </span>   <span class="Comment"><span class="Comment">#</span> JavaScript 1.8's version of reduceRight, if available.</span>
-<span class="line-numbers">  90 </span>   <span class="FunctionName">_.reduceRight</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, memo, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers">  91 </span>     <span class="Keyword">return</span> obj.reduceRight(_.bind(iterator, context), memo) <span class="Keyword">if</span> (obj <span class="Keyword">and</span> _.isFunction(obj.reduceRight))
-<span class="line-numbers">  92 </span>     _.each _.clone(_.toArray(obj)).reverse(), <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers">  93 </span>       <span class="FunctionName">memo</span><span class="Keyword">:</span> iterator.call(context, memo, value, index, obj)
-<span class="line-numbers">  94 </span>     memo
-<span class="line-numbers">  95 </span> 
-<span class="line-numbers">  96 </span> 
-<span class="line-numbers">  97 </span>   <span class="Comment"><span class="Comment">#</span> Return the first value which passes a truth test.</span>
-<span class="line-numbers">  98 </span>   <span class="FunctionName">_.detect</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers">  99 </span>     <span class="FunctionName">result</span><span class="Keyword">:</span> <span class="BuiltInConstant">null</span>
-<span class="line-numbers"> 100 </span>     _.each obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 101 </span>       <span class="Keyword">if</span> iterator.call(context, value, index, list)
-<span class="line-numbers"> 102 </span>         <span class="FunctionName">result</span><span class="Keyword">:</span> value
-<span class="line-numbers"> 103 </span>         _.breakLoop()
-<span class="line-numbers"> 104 </span>     result
-<span class="line-numbers"> 105 </span> 
-<span class="line-numbers"> 106 </span> 
-<span class="line-numbers"> 107 </span>   <span class="Comment"><span class="Comment">#</span> Return all the elements that pass a truth test. Use JavaScript 1.6's</span>
-<span class="line-numbers"> 108 </span>   <span class="Comment"><span class="Comment">#</span> filter(), if it exists.</span>
-<span class="line-numbers"> 109 </span>   <span class="FunctionName">_.select</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 110 </span>     <span class="Keyword">if</span> obj <span class="Keyword">and</span> _.isFunction(obj.filter) <span class="Keyword">then</span> <span class="Keyword">return</span> obj.filter(iterator, context)
-<span class="line-numbers"> 111 </span>     <span class="FunctionName">results</span><span class="Keyword">:</span> []
-<span class="line-numbers"> 112 </span>     _.each obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 113 </span>       results.push(value) <span class="Keyword">if</span> iterator.call(context, value, index, list)
-<span class="line-numbers"> 114 </span>     results
-<span class="line-numbers"> 115 </span> 
-<span class="line-numbers"> 116 </span> 
-<span class="line-numbers"> 117 </span>   <span class="Comment"><span class="Comment">#</span> Return all the elements for which a truth test fails.</span>
-<span class="line-numbers"> 118 </span>   <span class="FunctionName">_.reject</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 119 </span>     <span class="FunctionName">results</span><span class="Keyword">:</span> []
-<span class="line-numbers"> 120 </span>     _.each obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 121 </span>       results.push(value) <span class="Keyword">if</span> <span class="Keyword">not</span> iterator.call(context, value, index, list)
-<span class="line-numbers"> 122 </span>     results
-<span class="line-numbers"> 123 </span> 
-<span class="line-numbers"> 124 </span> 
-<span class="line-numbers"> 125 </span>   <span class="Comment"><span class="Comment">#</span> Determine whether all of the elements match a truth test. Delegate to</span>
-<span class="line-numbers"> 126 </span>   <span class="Comment"><span class="Comment">#</span> JavaScript 1.6's every(), if it is present.</span>
-<span class="line-numbers"> 127 </span>   <span class="FunctionName">_.all</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 128 </span>     iterator <span class="Keyword">||</span><span class="Keyword">=</span> _.identity
-<span class="line-numbers"> 129 </span>     <span class="Keyword">return</span> obj.every(iterator, context) <span class="Keyword">if</span> obj <span class="Keyword">and</span> _.isFunction(obj.every)
-<span class="line-numbers"> 130 </span>     <span class="FunctionName">result</span><span class="Keyword">:</span> <span class="BuiltInConstant">true</span>
-<span class="line-numbers"> 131 </span>     _.each obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 132 </span>       _.breakLoop() <span class="Keyword">unless</span> (<span class="FunctionName">result</span><span class="Keyword">:</span> result <span class="Keyword">and</span> iterator.call(context, value, index, list))
-<span class="line-numbers"> 133 </span>     result
-<span class="line-numbers"> 134 </span> 
-<span class="line-numbers"> 135 </span> 
-<span class="line-numbers"> 136 </span>   <span class="Comment"><span class="Comment">#</span> Determine if at least one element in the object matches a truth test. Use</span>
-<span class="line-numbers"> 137 </span>   <span class="Comment"><span class="Comment">#</span> JavaScript 1.6's some(), if it exists.</span>
-<span class="line-numbers"> 138 </span>   <span class="FunctionName">_.any</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 139 </span>     iterator <span class="Keyword">||</span><span class="Keyword">=</span> _.identity
-<span class="line-numbers"> 140 </span>     <span class="Keyword">return</span> obj.some(iterator, context) <span class="Keyword">if</span> obj <span class="Keyword">and</span> _.isFunction(obj.some)
-<span class="line-numbers"> 141 </span>     <span class="FunctionName">result</span><span class="Keyword">:</span> <span class="BuiltInConstant">false</span>
-<span class="line-numbers"> 142 </span>     _.each obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 143 </span>       _.breakLoop() <span class="Keyword">if</span> (<span class="FunctionName">result</span><span class="Keyword">:</span> iterator.call(context, value, index, list))
-<span class="line-numbers"> 144 </span>     result
-<span class="line-numbers"> 145 </span> 
-<span class="line-numbers"> 146 </span> 
-<span class="line-numbers"> 147 </span>   <span class="Comment"><span class="Comment">#</span> Determine if a given value is included in the array or object,</span>
-<span class="line-numbers"> 148 </span>   <span class="Comment"><span class="Comment">#</span> based on '==='.</span>
-<span class="line-numbers"> 149 </span>   <span class="FunctionName">_.include</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, target</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 150 </span>     <span class="Keyword">return</span> _.indexOf(obj, target) <span class="Keyword">isnt</span> <span class="Keyword">-</span><span class="Number">1</span> <span class="Keyword">if</span> obj <span class="Keyword">and</span> _.isFunction(obj.indexOf)
-<span class="line-numbers"> 151 </span>     <span class="Keyword">for</span> key, val <span class="Keyword">of</span> obj
-<span class="line-numbers"> 152 </span>       <span class="Keyword">return</span> <span class="BuiltInConstant">true</span> <span class="Keyword">if</span> val <span class="Keyword">is</span> target
-<span class="line-numbers"> 153 </span>     <span class="BuiltInConstant">false</span>
-<span class="line-numbers"> 154 </span> 
-<span class="line-numbers"> 155 </span> 
-<span class="line-numbers"> 156 </span>   <span class="Comment"><span class="Comment">#</span> Invoke a method with arguments on every item in a collection.</span>
-<span class="line-numbers"> 157 </span>   <span class="FunctionName">_.invoke</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, method</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 158 </span>     <span class="FunctionName">args</span><span class="Keyword">:</span> _.rest(arguments, <span class="Number">2</span>)
-<span class="line-numbers"> 159 </span>     (<span class="Keyword">if</span> method <span class="Keyword">then</span> val[method] <span class="Keyword">else</span> val).apply(val, args) <span class="Keyword">for</span> val <span class="Keyword">in</span> obj
-<span class="line-numbers"> 160 </span> 
-<span class="line-numbers"> 161 </span> 
-<span class="line-numbers"> 162 </span>   <span class="Comment"><span class="Comment">#</span> Convenience version of a common use case of map: fetching a property.</span>
-<span class="line-numbers"> 163 </span>   <span class="FunctionName">_.pluck</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, key</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 164 </span>     _.map(obj, (<span class="FunctionArgument">(</span><span class="FunctionArgument">val</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> val[key]))
-<span class="line-numbers"> 165 </span> 
-<span class="line-numbers"> 166 </span> 
-<span class="line-numbers"> 167 </span>   <span class="Comment"><span class="Comment">#</span> Return the maximum item or (item-based computation).</span>
-<span class="line-numbers"> 168 </span>   <span class="FunctionName">_.max</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 169 </span>     <span class="Keyword">return</span> Math.max.apply(Math, obj) <span class="Keyword">if</span> <span class="Keyword">not</span> iterator <span class="Keyword">and</span> _.isArray(obj)
-<span class="line-numbers"> 170 </span>     <span class="FunctionName">result</span><span class="Keyword">:</span> {<span class="FunctionName">computed</span><span class="Keyword">:</span> <span class="Keyword">-</span><span class="BuiltInConstant">Infinity</span>}
-<span class="line-numbers"> 171 </span>     _.each obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 172 </span>       <span class="FunctionName">computed</span><span class="Keyword">:</span> <span class="Keyword">if</span> iterator <span class="Keyword">then</span> iterator.call(context, value, index, list) <span class="Keyword">else</span> value
-<span class="line-numbers"> 173 </span>       computed <span class="Keyword">&gt;=</span> result.computed <span class="Keyword">and</span> (<span class="FunctionName">result</span><span class="Keyword">:</span> {<span class="FunctionName">value</span><span class="Keyword">:</span> value, <span class="FunctionName">computed</span><span class="Keyword">:</span> computed})
-<span class="line-numbers"> 174 </span>     result.value
-<span class="line-numbers"> 175 </span> 
-<span class="line-numbers"> 176 </span> 
-<span class="line-numbers"> 177 </span>   <span class="Comment"><span class="Comment">#</span> Return the minimum element (or element-based computation).</span>
-<span class="line-numbers"> 178 </span>   <span class="FunctionName">_.min</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 179 </span>     <span class="Keyword">return</span> Math.min.apply(Math, obj) <span class="Keyword">if</span> <span class="Keyword">not</span> iterator <span class="Keyword">and</span> _.isArray(obj)
-<span class="line-numbers"> 180 </span>     <span class="FunctionName">result</span><span class="Keyword">:</span> {<span class="FunctionName">computed</span><span class="Keyword">:</span> <span class="BuiltInConstant">Infinity</span>}
-<span class="line-numbers"> 181 </span>     _.each obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 182 </span>       <span class="FunctionName">computed</span><span class="Keyword">:</span> <span class="Keyword">if</span> iterator <span class="Keyword">then</span> iterator.call(context, value, index, list) <span class="Keyword">else</span> value
-<span class="line-numbers"> 183 </span>       computed <span class="Keyword">&lt;</span> result.computed <span class="Keyword">and</span> (<span class="FunctionName">result</span><span class="Keyword">:</span> {<span class="FunctionName">value</span><span class="Keyword">:</span> value, <span class="FunctionName">computed</span><span class="Keyword">:</span> computed})
-<span class="line-numbers"> 184 </span>     result.value
-<span class="line-numbers"> 185 </span> 
-<span class="line-numbers"> 186 </span> 
-<span class="line-numbers"> 187 </span>   <span class="Comment"><span class="Comment">#</span> Sort the object's values by a criteria produced by an iterator.</span>
-<span class="line-numbers"> 188 </span>   <span class="FunctionName">_.sortBy</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, iterator, context</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 189 </span>     _.pluck(((_.map obj, <span class="FunctionArgument">(</span><span class="FunctionArgument">value, index, list</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 190 </span>       {<span class="FunctionName">value</span><span class="Keyword">:</span> value, <span class="FunctionName">criteria</span><span class="Keyword">:</span> iterator.call(context, value, index, list)}
-<span class="line-numbers"> 191 </span>     ).sort(<span class="FunctionArgument">(</span><span class="FunctionArgument">left, right</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 192 </span>       <span class="FunctionName">a</span><span class="Keyword">:</span> left.criteria; <span class="FunctionName">b</span><span class="Keyword">:</span> right.criteria
-<span class="line-numbers"> 193 </span>       <span class="Keyword">if</span> a <span class="Keyword">&lt;</span> b <span class="Keyword">then</span> <span class="Keyword">-</span><span class="Number">1</span> <span class="Keyword">else</span> <span class="Keyword">if</span> a <span class="Keyword">&gt;</span> b <span class="Keyword">then</span> <span class="Number">1</span> <span class="Keyword">else</span> <span class="Number">0</span>
-<span class="line-numbers"> 194 </span>     )), <span class="String"><span class="String">'</span>value<span class="String">'</span></span>)
-<span class="line-numbers"> 195 </span> 
-<span class="line-numbers"> 196 </span> 
-<span class="line-numbers"> 197 </span>   <span class="Comment"><span class="Comment">#</span> Use a comparator function to figure out at what index an object should</span>
-<span class="line-numbers"> 198 </span>   <span class="Comment"><span class="Comment">#</span> be inserted so as to maintain order. Uses binary search.</span>
-<span class="line-numbers"> 199 </span>   <span class="FunctionName">_.sortedIndex</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array, obj, iterator</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 200 </span>     iterator <span class="Keyword">||</span><span class="Keyword">=</span> _.identity
-<span class="line-numbers"> 201 </span>     <span class="FunctionName">low</span><span class="Keyword">:</span> <span class="Number">0</span>; <span class="FunctionName">high</span><span class="Keyword">:</span> array.length
-<span class="line-numbers"> 202 </span>     <span class="Keyword">while</span> low <span class="Keyword">&lt;</span> high
-<span class="line-numbers"> 203 </span>       <span class="FunctionName">mid</span><span class="Keyword">:</span> (low <span class="Keyword">+</span> high) <span class="Keyword">&gt;</span><span class="Keyword">&gt;</span> <span class="Number">1</span>
-<span class="line-numbers"> 204 </span>       <span class="Keyword">if</span> iterator(array[mid]) <span class="Keyword">&lt;</span> iterator(obj) <span class="Keyword">then</span> <span class="FunctionName">low</span><span class="Keyword">:</span> mid <span class="Keyword">+</span> <span class="Number">1</span> <span class="Keyword">else</span> <span class="FunctionName">high</span><span class="Keyword">:</span> mid
-<span class="line-numbers"> 205 </span>     low
-<span class="line-numbers"> 206 </span> 
-<span class="line-numbers"> 207 </span> 
-<span class="line-numbers"> 208 </span>   <span class="Comment"><span class="Comment">#</span> Convert anything iterable into a real, live array.</span>
-<span class="line-numbers"> 209 </span>   <span class="FunctionName">_.toArray</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">iterable</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 210 </span>     <span class="Keyword">return</span> []                   <span class="Keyword">if</span> (<span class="Keyword">!</span>iterable)
-<span class="line-numbers"> 211 </span>     <span class="Keyword">return</span> iterable.toArray()   <span class="Keyword">if</span> (iterable.toArray)
-<span class="line-numbers"> 212 </span>     <span class="Keyword">return</span> iterable             <span class="Keyword">if</span> (_.isArray(iterable))
-<span class="line-numbers"> 213 </span>     <span class="Keyword">return</span> slice.call(iterable) <span class="Keyword">if</span> (_.isArguments(iterable))
-<span class="line-numbers"> 214 </span>     _.values(iterable)
-<span class="line-numbers"> 215 </span> 
-<span class="line-numbers"> 216 </span> 
-<span class="line-numbers"> 217 </span>   <span class="Comment"><span class="Comment">#</span> Return the number of elements in an object.</span>
-<span class="line-numbers"> 218 </span>   <span class="FunctionName">_.size</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> _.toArray(obj).length
-<span class="line-numbers"> 219 </span> 
-<span class="line-numbers"> 220 </span> 
-<span class="line-numbers"> 221 </span>   <span class="Comment"><span class="Comment">#</span> -------------------------- Array Functions: ------------------------------</span>
-<span class="line-numbers"> 222 </span> 
-<span class="line-numbers"> 223 </span>   <span class="Comment"><span class="Comment">#</span> Get the first element of an array. Passing &quot;n&quot; will return the first N</span>
-<span class="line-numbers"> 224 </span>   <span class="Comment"><span class="Comment">#</span> values in the array. Aliased as &quot;head&quot;. The &quot;guard&quot; check allows it to work</span>
-<span class="line-numbers"> 225 </span>   <span class="Comment"><span class="Comment">#</span> with _.map.</span>
-<span class="line-numbers"> 226 </span>   <span class="FunctionName">_.first</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array, n, guard</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 227 </span>     <span class="Keyword">if</span> n <span class="Keyword">and</span> <span class="Keyword">not</span> guard <span class="Keyword">then</span> slice.call(array, <span class="Number">0</span>, n) <span class="Keyword">else</span> array[<span class="Number">0</span>]
-<span class="line-numbers"> 228 </span> 
-<span class="line-numbers"> 229 </span> 
-<span class="line-numbers"> 230 </span>   <span class="Comment"><span class="Comment">#</span> Returns everything but the first entry of the array. Aliased as &quot;tail&quot;.</span>
-<span class="line-numbers"> 231 </span>   <span class="Comment"><span class="Comment">#</span> Especially useful on the arguments object. Passing an &quot;index&quot; will return</span>
-<span class="line-numbers"> 232 </span>   <span class="Comment"><span class="Comment">#</span> the rest of the values in the array from that index onward. The &quot;guard&quot;</span>
-<span class="line-numbers"> 233 </span>   <span class="Comment"><span class="Comment">#</span> check allows it to work with _.map.</span>
-<span class="line-numbers"> 234 </span>   <span class="FunctionName">_.rest</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array, index, guard</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 235 </span>     slice.call(array, <span class="Keyword">if</span> _.isUndefined(index) <span class="Keyword">or</span> guard <span class="Keyword">then</span> <span class="Number">1</span> <span class="Keyword">else</span> index)
-<span class="line-numbers"> 236 </span> 
-<span class="line-numbers"> 237 </span> 
-<span class="line-numbers"> 238 </span>   <span class="Comment"><span class="Comment">#</span> Get the last element of an array.</span>
-<span class="line-numbers"> 239 </span>   <span class="FunctionName">_.last</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> array[array.length <span class="Keyword">-</span> <span class="Number">1</span>]
-<span class="line-numbers"> 240 </span> 
-<span class="line-numbers"> 241 </span> 
-<span class="line-numbers"> 242 </span>   <span class="Comment"><span class="Comment">#</span> Trim out all falsy values from an array.</span>
-<span class="line-numbers"> 243 </span>   <span class="FunctionName">_.compact</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> item <span class="Keyword">for</span> item <span class="Keyword">in</span> array <span class="Keyword">when</span> item
-<span class="line-numbers"> 244 </span> 
-<span class="line-numbers"> 245 </span> 
-<span class="line-numbers"> 246 </span>   <span class="Comment"><span class="Comment">#</span> Return a completely flattened version of an array.</span>
-<span class="line-numbers"> 247 </span>   <span class="FunctionName">_.flatten</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 248 </span>     _.reduce array, [], <span class="FunctionArgument">(</span><span class="FunctionArgument">memo, value</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 249 </span>       <span class="Keyword">return</span> memo.concat(_.flatten(value)) <span class="Keyword">if</span> _.isArray(value)
-<span class="line-numbers"> 250 </span>       memo.push(value)
-<span class="line-numbers"> 251 </span>       memo
-<span class="line-numbers"> 252 </span> 
-<span class="line-numbers"> 253 </span> 
-<span class="line-numbers"> 254 </span>   <span class="Comment"><span class="Comment">#</span> Return a version of the array that does not contain the specified value(s).</span>
-<span class="line-numbers"> 255 </span>   <span class="FunctionName">_.without</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 256 </span>     <span class="FunctionName">values</span><span class="Keyword">:</span> _.rest(arguments)
-<span class="line-numbers"> 257 </span>     val <span class="Keyword">for</span> val <span class="Keyword">in</span> _.toArray(array) <span class="Keyword">when</span> <span class="Keyword">not</span> _.include(values, val)
-<span class="line-numbers"> 258 </span> 
-<span class="line-numbers"> 259 </span> 
-<span class="line-numbers"> 260 </span>   <span class="Comment"><span class="Comment">#</span> Produce a duplicate-free version of the array. If the array has already</span>
-<span class="line-numbers"> 261 </span>   <span class="Comment"><span class="Comment">#</span> been sorted, you have the option of using a faster algorithm.</span>
-<span class="line-numbers"> 262 </span>   <span class="FunctionName">_.uniq</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array, isSorted</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 263 </span>     <span class="FunctionName">memo</span><span class="Keyword">:</span> []
-<span class="line-numbers"> 264 </span>     <span class="Keyword">for</span> el, i <span class="Keyword">in</span> _.toArray(array)
-<span class="line-numbers"> 265 </span>       memo.push(el) <span class="Keyword">if</span> i <span class="Keyword">is</span> <span class="Number">0</span> <span class="Keyword">||</span> (<span class="Keyword">if</span> isSorted <span class="Keyword">is</span> <span class="BuiltInConstant">true</span> <span class="Keyword">then</span> _.last(memo) <span class="Keyword">isnt</span> el <span class="Keyword">else</span> <span class="Keyword">not</span> _.include(memo, el))
-<span class="line-numbers"> 266 </span>     memo
-<span class="line-numbers"> 267 </span> 
-<span class="line-numbers"> 268 </span> 
-<span class="line-numbers"> 269 </span>   <span class="Comment"><span class="Comment">#</span> Produce an array that contains every item shared between all the</span>
-<span class="line-numbers"> 270 </span>   <span class="Comment"><span class="Comment">#</span> passed-in arrays.</span>
-<span class="line-numbers"> 271 </span>   <span class="FunctionName">_.intersect</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 272 </span>     <span class="FunctionName">rest</span><span class="Keyword">:</span> _.rest(arguments)
-<span class="line-numbers"> 273 </span>     _.select _.uniq(array), <span class="FunctionArgument">(</span><span class="FunctionArgument">item</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 274 </span>       _.all rest, <span class="FunctionArgument">(</span><span class="FunctionArgument">other</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 275 </span>         _.indexOf(other, item) <span class="Keyword">&gt;=</span> <span class="Number">0</span>
-<span class="line-numbers"> 276 </span> 
-<span class="line-numbers"> 277 </span> 
-<span class="line-numbers"> 278 </span>   <span class="Comment"><span class="Comment">#</span> Zip together multiple lists into a single array -- elements that share</span>
-<span class="line-numbers"> 279 </span>   <span class="Comment"><span class="Comment">#</span> an index go together.</span>
-<span class="line-numbers"> 280 </span>   <span class="FunctionName">_.zip</span><span class="Keyword">:</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 281 </span>     <span class="FunctionName">length</span><span class="Keyword">:</span>     _.max(_.pluck(arguments, <span class="String"><span class="String">'</span>length<span class="String">'</span></span>))
-<span class="line-numbers"> 282 </span>     <span class="FunctionName">results</span><span class="Keyword">:</span>    <span class="Keyword">new</span> <span class="TypeName">Array</span>(length)
-<span class="line-numbers"> 283 </span>     <span class="Keyword">for</span> i <span class="Keyword">in</span> [<span class="Number">0</span>...length]
-<span class="line-numbers"> 284 </span>       results[i]<span class="Keyword">:</span> _.pluck(arguments, String(i))
-<span class="line-numbers"> 285 </span>     results
-<span class="line-numbers"> 286 </span> 
-<span class="line-numbers"> 287 </span> 
-<span class="line-numbers"> 288 </span>   <span class="Comment"><span class="Comment">#</span> If the browser doesn't supply us with indexOf (I'm looking at you, MSIE),</span>
-<span class="line-numbers"> 289 </span>   <span class="Comment"><span class="Comment">#</span> we need this function. Return the position of the first occurence of an</span>
-<span class="line-numbers"> 290 </span>   <span class="Comment"><span class="Comment">#</span> item in an array, or -1 if the item is not included in the array.</span>
-<span class="line-numbers"> 291 </span>   <span class="FunctionName">_.indexOf</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array, item</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 292 </span>     <span class="Keyword">return</span> array.indexOf(item) <span class="Keyword">if</span> array.indexOf
-<span class="line-numbers"> 293 </span>     <span class="FunctionName">i</span><span class="Keyword">:</span> <span class="Number">0</span>; <span class="FunctionName">l</span><span class="Keyword">:</span> array.length
-<span class="line-numbers"> 294 </span>     <span class="Keyword">while</span> l <span class="Keyword">-</span> i
-<span class="line-numbers"> 295 </span>       <span class="Keyword">if</span> array[i] <span class="Keyword">is</span> item <span class="Keyword">then</span> <span class="Keyword">return</span> i <span class="Keyword">else</span> i<span class="Keyword">++</span>
-<span class="line-numbers"> 296 </span>     <span class="Keyword">-</span><span class="Number">1</span>
-<span class="line-numbers"> 297 </span> 
-<span class="line-numbers"> 298 </span> 
-<span class="line-numbers"> 299 </span>   <span class="Comment"><span class="Comment">#</span> Provide JavaScript 1.6's lastIndexOf, delegating to the native function,</span>
-<span class="line-numbers"> 300 </span>   <span class="Comment"><span class="Comment">#</span> if possible.</span>
-<span class="line-numbers"> 301 </span>   <span class="FunctionName">_.lastIndexOf</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">array, item</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 302 </span>     <span class="Keyword">return</span> array.lastIndexOf(item) <span class="Keyword">if</span> array.lastIndexOf
-<span class="line-numbers"> 303 </span>     <span class="FunctionName">i</span><span class="Keyword">:</span> array.length
-<span class="line-numbers"> 304 </span>     <span class="Keyword">while</span> i
-<span class="line-numbers"> 305 </span>       <span class="Keyword">if</span> array[i] <span class="Keyword">is</span> item <span class="Keyword">then</span> <span class="Keyword">return</span> i <span class="Keyword">else</span> i<span class="Keyword">--</span>
-<span class="line-numbers"> 306 </span>     <span class="Keyword">-</span><span class="Number">1</span>
-<span class="line-numbers"> 307 </span> 
-<span class="line-numbers"> 308 </span> 
-<span class="line-numbers"> 309 </span>   <span class="Comment"><span class="Comment">#</span> Generate an integer Array containing an arithmetic progression. A port of</span>
-<span class="line-numbers"> 310 </span>   <span class="Comment"><span class="Comment">#</span> the native Python range() function. See:</span>
-<span class="line-numbers"> 311 </span>   <span class="Comment"><span class="Comment">#</span> http://docs.python.org/library/functions.html#range</span>
-<span class="line-numbers"> 312 </span>   <span class="FunctionName">_.range</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">start, stop, step</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 313 </span>     <span class="FunctionName">a</span><span class="Keyword">:</span>        arguments
-<span class="line-numbers"> 314 </span>     <span class="FunctionName">solo</span><span class="Keyword">:</span>     a.length <span class="Keyword">&lt;=</span> <span class="Number">1</span>
-<span class="line-numbers"> 315 </span>     <span class="FunctionName">i</span><span class="Keyword">:</span> <span class="FunctionName">start</span><span class="Keyword">:</span> <span class="Keyword">if</span> solo <span class="Keyword">then</span> <span class="Number">0</span> <span class="Keyword">else</span> a[<span class="Number">0</span>]
-<span class="line-numbers"> 316 </span>     <span class="FunctionName">stop</span><span class="Keyword">:</span>     <span class="Keyword">if</span> solo <span class="Keyword">then</span> a[<span class="Number">0</span>] <span class="Keyword">else</span> a[<span class="Number">1</span>]
-<span class="line-numbers"> 317 </span>     <span class="FunctionName">step</span><span class="Keyword">:</span>     a[<span class="Number">2</span>] <span class="Keyword">or</span> <span class="Number">1</span>
-<span class="line-numbers"> 318 </span>     <span class="FunctionName">len</span><span class="Keyword">:</span>      Math.ceil((stop <span class="Keyword">-</span> start) <span class="Keyword">/</span> step)
-<span class="line-numbers"> 319 </span>     <span class="Keyword">return</span> [] <span class="Keyword">if</span> len <span class="Keyword">&lt;=</span> <span class="Number">0</span>
-<span class="line-numbers"> 320 </span>     <span class="FunctionName">range</span><span class="Keyword">:</span>    <span class="Keyword">new</span> <span class="TypeName">Array</span>(len)
-<span class="line-numbers"> 321 </span>     <span class="FunctionName">idx</span><span class="Keyword">:</span>      <span class="Number">0</span>
-<span class="line-numbers"> 322 </span>     <span class="Keyword">while</span> <span class="BuiltInConstant">true</span>
-<span class="line-numbers"> 323 </span>       <span class="Keyword">return</span> range <span class="Keyword">if</span> (<span class="Keyword">if</span> step <span class="Keyword">&gt;</span> <span class="Number">0</span> <span class="Keyword">then</span> i <span class="Keyword">-</span> stop <span class="Keyword">else</span> stop <span class="Keyword">-</span> i) <span class="Keyword">&gt;=</span> <span class="Number">0</span>
-<span class="line-numbers"> 324 </span>       range[idx]<span class="Keyword">:</span> i
-<span class="line-numbers"> 325 </span>       idx<span class="Keyword">++</span>
-<span class="line-numbers"> 326 </span>       i<span class="Keyword">+</span><span class="Keyword">=</span> step
-<span class="line-numbers"> 327 </span> 
-<span class="line-numbers"> 328 </span> 
-<span class="line-numbers"> 329 </span>   <span class="Comment"><span class="Comment">#</span> ----------------------- Function Functions: -----------------------------</span>
-<span class="line-numbers"> 330 </span> 
-<span class="line-numbers"> 331 </span>   <span class="Comment"><span class="Comment">#</span> Create a function bound to a given object (assigning 'this', and arguments,</span>
-<span class="line-numbers"> 332 </span>   <span class="Comment"><span class="Comment">#</span> optionally). Binding with arguments is also known as 'curry'.</span>
-<span class="line-numbers"> 333 </span>   <span class="FunctionName">_.bind</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">func, obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 334 </span>     <span class="FunctionName">args</span><span class="Keyword">:</span> _.rest(arguments, <span class="Number">2</span>)
-<span class="line-numbers"> 335 </span>     <span class="Storage">-&gt;</span> func.apply(obj <span class="Keyword">or</span> root, args.concat(arguments))
-<span class="line-numbers"> 336 </span> 
-<span class="line-numbers"> 337 </span> 
-<span class="line-numbers"> 338 </span>   <span class="Comment"><span class="Comment">#</span> Bind all of an object's methods to that object. Useful for ensuring that</span>
-<span class="line-numbers"> 339 </span>   <span class="Comment"><span class="Comment">#</span> all callbacks defined on an object belong to it.</span>
-<span class="line-numbers"> 340 </span>   <span class="FunctionName">_.bindAll</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 341 </span>     <span class="FunctionName">funcs</span><span class="Keyword">:</span> <span class="Keyword">if</span> arguments.length <span class="Keyword">&gt;</span> <span class="Number">1</span> <span class="Keyword">then</span> _.rest(arguments) <span class="Keyword">else</span> _.functions(obj)
-<span class="line-numbers"> 342 </span>     _.each(funcs, <span class="FunctionArgument">(</span><span class="FunctionArgument">f</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> obj[f]<span class="Keyword">:</span> _.bind(obj[f], obj))
-<span class="line-numbers"> 343 </span>     obj
-<span class="line-numbers"> 344 </span> 
-<span class="line-numbers"> 345 </span> 
-<span class="line-numbers"> 346 </span>   <span class="Comment"><span class="Comment">#</span> Delays a function for the given number of milliseconds, and then calls</span>
-<span class="line-numbers"> 347 </span>   <span class="Comment"><span class="Comment">#</span> it with the arguments supplied.</span>
-<span class="line-numbers"> 348 </span>   <span class="FunctionName">_.delay</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">func, wait</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 349 </span>     <span class="FunctionName">args</span><span class="Keyword">:</span> _.rest(arguments, <span class="Number">2</span>)
-<span class="line-numbers"> 350 </span>     setTimeout((<span class="Storage">-&gt;</span> func.apply(func, args)), wait)
-<span class="line-numbers"> 351 </span> 
-<span class="line-numbers"> 352 </span> 
-<span class="line-numbers"> 353 </span>   <span class="Comment"><span class="Comment">#</span> Defers a function, scheduling it to run after the current call stack has</span>
-<span class="line-numbers"> 354 </span>   <span class="Comment"><span class="Comment">#</span> cleared.</span>
-<span class="line-numbers"> 355 </span>   <span class="FunctionName">_.defer</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">func</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 356 </span>     _.delay.apply(_, [func, <span class="Number">1</span>].concat(_.rest(arguments)))
-<span class="line-numbers"> 357 </span> 
-<span class="line-numbers"> 358 </span> 
-<span class="line-numbers"> 359 </span>   <span class="Comment"><span class="Comment">#</span> Returns the first function passed as an argument to the second,</span>
-<span class="line-numbers"> 360 </span>   <span class="Comment"><span class="Comment">#</span> allowing you to adjust arguments, run code before and after, and</span>
-<span class="line-numbers"> 361 </span>   <span class="Comment"><span class="Comment">#</span> conditionally execute the original function.</span>
-<span class="line-numbers"> 362 </span>   <span class="FunctionName">_.wrap</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">func, wrapper</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 363 </span>     <span class="Storage">-&gt;</span> wrapper.apply(wrapper, [func].concat(arguments))
-<span class="line-numbers"> 364 </span> 
-<span class="line-numbers"> 365 </span> 
-<span class="line-numbers"> 366 </span>   <span class="Comment"><span class="Comment">#</span> Returns a function that is the composition of a list of functions, each</span>
-<span class="line-numbers"> 367 </span>   <span class="Comment"><span class="Comment">#</span> consuming the return value of the function that follows.</span>
-<span class="line-numbers"> 368 </span>   <span class="FunctionName">_.compose</span><span class="Keyword">:</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 369 </span>     <span class="FunctionName">funcs</span><span class="Keyword">:</span> arguments
-<span class="line-numbers"> 370 </span>     <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 371 </span>       <span class="FunctionName">args</span><span class="Keyword">:</span> arguments
-<span class="line-numbers"> 372 </span>       <span class="Keyword">for</span> i <span class="Keyword">in</span> [(funcs.length <span class="Keyword">-</span> <span class="Number">1</span>)..<span class="Number">0</span>]
-<span class="line-numbers"> 373 </span>         <span class="FunctionName">args</span><span class="Keyword">:</span> [funcs[i].apply(<span class="Variable">this</span>, args)]
-<span class="line-numbers"> 374 </span>       args[<span class="Number">0</span>]
-<span class="line-numbers"> 375 </span> 
-<span class="line-numbers"> 376 </span> 
-<span class="line-numbers"> 377 </span>   <span class="Comment"><span class="Comment">#</span> ------------------------- Object Functions: ----------------------------</span>
-<span class="line-numbers"> 378 </span> 
-<span class="line-numbers"> 379 </span>   <span class="Comment"><span class="Comment">#</span> Retrieve the names of an object's properties.</span>
-<span class="line-numbers"> 380 </span>   <span class="FunctionName">_.keys</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 381 </span>     <span class="Keyword">return</span> _.range(<span class="Number">0</span>, obj.length) <span class="Keyword">if</span> _.isArray(obj)
-<span class="line-numbers"> 382 </span>     key <span class="Keyword">for</span> key, val <span class="Keyword">of</span> obj
-<span class="line-numbers"> 383 </span> 
-<span class="line-numbers"> 384 </span> 
-<span class="line-numbers"> 385 </span>   <span class="Comment"><span class="Comment">#</span> Retrieve the values of an object's properties.</span>
-<span class="line-numbers"> 386 </span>   <span class="FunctionName">_.values</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 387 </span>     _.map(obj, _.identity)
-<span class="line-numbers"> 388 </span> 
-<span class="line-numbers"> 389 </span> 
-<span class="line-numbers"> 390 </span>   <span class="Comment"><span class="Comment">#</span> Return a sorted list of the function names available in Underscore.</span>
-<span class="line-numbers"> 391 </span>   <span class="FunctionName">_.functions</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 392 </span>     _.select(_.keys(obj), <span class="FunctionArgument">(</span><span class="FunctionArgument">key</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> _.isFunction(obj[key])).sort()
-<span class="line-numbers"> 393 </span> 
-<span class="line-numbers"> 394 </span> 
-<span class="line-numbers"> 395 </span>   <span class="Comment"><span class="Comment">#</span> Extend a given object with all of the properties in a source object.</span>
-<span class="line-numbers"> 396 </span>   <span class="FunctionName">_.extend</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">destination, source</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 397 </span>     <span class="Keyword">for</span> key, val <span class="Keyword">of</span> source
-<span class="line-numbers"> 398 </span>       destination[key]<span class="Keyword">:</span> val
-<span class="line-numbers"> 399 </span>     destination
-<span class="line-numbers"> 400 </span> 
-<span class="line-numbers"> 401 </span> 
-<span class="line-numbers"> 402 </span>   <span class="Comment"><span class="Comment">#</span> Create a (shallow-cloned) duplicate of an object.</span>
-<span class="line-numbers"> 403 </span>   <span class="FunctionName">_.clone</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 404 </span>     <span class="Keyword">return</span> obj.slice(<span class="Number">0</span>) <span class="Keyword">if</span> _.isArray(obj)
-<span class="line-numbers"> 405 </span>     _.extend({}, obj)
-<span class="line-numbers"> 406 </span> 
-<span class="line-numbers"> 407 </span> 
-<span class="line-numbers"> 408 </span>   <span class="Comment"><span class="Comment">#</span> Invokes interceptor with the obj, and then returns obj.</span>
-<span class="line-numbers"> 409 </span>   <span class="Comment"><span class="Comment">#</span> The primary purpose of this method is to &quot;tap into&quot; a method chain, in order to perform operations on intermediate results within the chain.</span>
-<span class="line-numbers"> 410 </span>   <span class="FunctionName">_.tap</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, interceptor</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 411 </span>     interceptor(obj)
-<span class="line-numbers"> 412 </span>     obj
-<span class="line-numbers"> 413 </span> 
-<span class="line-numbers"> 414 </span> 
-<span class="line-numbers"> 415 </span>   <span class="Comment"><span class="Comment">#</span> Perform a deep comparison to check if two objects are equal.</span>
-<span class="line-numbers"> 416 </span>   <span class="FunctionName">_.isEqual</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">a, b</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 417 </span>     <span class="Comment"><span class="Comment">#</span> Check object identity.</span>
-<span class="line-numbers"> 418 </span>     <span class="Keyword">return</span> <span class="BuiltInConstant">true</span> <span class="Keyword">if</span> a <span class="Keyword">is</span> b
-<span class="line-numbers"> 419 </span>     <span class="Comment"><span class="Comment">#</span> Different types?</span>
-<span class="line-numbers"> 420 </span>     <span class="FunctionName">atype</span><span class="Keyword">:</span> <span class="Keyword">typeof</span>(a); <span class="FunctionName">btype</span><span class="Keyword">:</span> <span class="Keyword">typeof</span>(b)
-<span class="line-numbers"> 421 </span>     <span class="Keyword">return</span> <span class="BuiltInConstant">false</span> <span class="Keyword">if</span> atype <span class="Keyword">isnt</span> btype
-<span class="line-numbers"> 422 </span>     <span class="Comment"><span class="Comment">#</span> Basic equality test (watch out for coercions).</span>
-<span class="line-numbers"> 423 </span>     <span class="Keyword">return</span> <span class="BuiltInConstant">true</span> <span class="Keyword">if</span> <span class="String"><span class="String">`</span>a == b<span class="String">`</span></span>
-<span class="line-numbers"> 424 </span>     <span class="Comment"><span class="Comment">#</span> One is falsy and the other truthy.</span>
-<span class="line-numbers"> 425 </span>     <span class="Keyword">return</span> <span class="BuiltInConstant">false</span> <span class="Keyword">if</span> (<span class="Keyword">!</span>a <span class="Keyword">and</span> b) <span class="Keyword">or</span> (a <span class="Keyword">and</span> <span class="Keyword">!</span>b)
-<span class="line-numbers"> 426 </span>     <span class="Comment"><span class="Comment">#</span> One of them implements an isEqual()?</span>
-<span class="line-numbers"> 427 </span>     <span class="Keyword">return</span> a.isEqual(b) <span class="Keyword">if</span> a.isEqual
-<span class="line-numbers"> 428 </span>     <span class="Comment"><span class="Comment">#</span> Check dates' integer values.</span>
-<span class="line-numbers"> 429 </span>     <span class="Keyword">return</span> a.getTime() <span class="Keyword">is</span> b.getTime() <span class="Keyword">if</span> _.isDate(a) <span class="Keyword">and</span> _.isDate(b)
-<span class="line-numbers"> 430 </span>     <span class="Comment"><span class="Comment">#</span> Both are NaN?</span>
-<span class="line-numbers"> 431 </span>     <span class="Keyword">return</span> <span class="BuiltInConstant">true</span> <span class="Keyword">if</span> _.isNaN(a) <span class="Keyword">and</span> _.isNaN(b)
-<span class="line-numbers"> 432 </span>     <span class="Comment"><span class="Comment">#</span> Compare regular expressions.</span>
-<span class="line-numbers"> 433 </span>     <span class="Keyword">if</span> _.isRegExp(a) <span class="Keyword">and</span> _.isRegExp(b)
-<span class="line-numbers"> 434 </span>       <span class="Keyword">return</span> a.source     <span class="Keyword">is</span> b.source <span class="Keyword">and</span>
-<span class="line-numbers"> 435 </span>              a.global     <span class="Keyword">is</span> b.global <span class="Keyword">and</span>
-<span class="line-numbers"> 436 </span>              a.ignoreCase <span class="Keyword">is</span> b.ignoreCase <span class="Keyword">and</span>
-<span class="line-numbers"> 437 </span>              a.multiline  <span class="Keyword">is</span> b.multiline
-<span class="line-numbers"> 438 </span>     <span class="Comment"><span class="Comment">#</span> If a is not an object by this point, we can't handle it.</span>
-<span class="line-numbers"> 439 </span>     <span class="Keyword">return</span> <span class="BuiltInConstant">false</span> <span class="Keyword">if</span> atype <span class="Keyword">isnt</span> <span class="String"><span class="String">'</span>object<span class="String">'</span></span>
-<span class="line-numbers"> 440 </span>     <span class="Comment"><span class="Comment">#</span> Check for different array lengths before comparing contents.</span>
-<span class="line-numbers"> 441 </span>     <span class="Keyword">return</span> <span class="BuiltInConstant">false</span> <span class="Keyword">if</span> a.length <span class="Keyword">and</span> (a.length <span class="Keyword">isnt</span> b.length)
-<span class="line-numbers"> 442 </span>     <span class="Comment"><span class="Comment">#</span> Nothing else worked, deep compare the contents.</span>
-<span class="line-numbers"> 443 </span>     <span class="FunctionName">aKeys</span><span class="Keyword">:</span> _.keys(a); <span class="FunctionName">bKeys</span><span class="Keyword">:</span> _.keys(b)
-<span class="line-numbers"> 444 </span>     <span class="Comment"><span class="Comment">#</span> Different object sizes?</span>
-<span class="line-numbers"> 445 </span>     <span class="Keyword">return</span> <span class="BuiltInConstant">false</span> <span class="Keyword">if</span> aKeys.length <span class="Keyword">isnt</span> bKeys.length
-<span class="line-numbers"> 446 </span>     <span class="Comment"><span class="Comment">#</span> Recursive comparison of contents.</span>
-<span class="line-numbers"> 447 </span>     <span class="Comment"><span class="Comment">#</span> for (var key in a) if (!_.isEqual(a[key], b[key])) return false;</span>
-<span class="line-numbers"> 448 </span>     <span class="Keyword">return</span> <span class="BuiltInConstant">true</span>
-<span class="line-numbers"> 449 </span> 
-<span class="line-numbers"> 450 </span> 
-<span class="line-numbers"> 451 </span>   <span class="Comment"><span class="Comment">#</span> Is a given array or object empty?</span>
-<span class="line-numbers"> 452 </span>   <span class="FunctionName">_.isEmpty</span><span class="Keyword">:</span>      <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> _.keys(obj).length <span class="Keyword">is</span> <span class="Number">0</span>
-<span class="line-numbers"> 453 </span> 
-<span class="line-numbers"> 454 </span> 
-<span class="line-numbers"> 455 </span>   <span class="Comment"><span class="Comment">#</span> Is a given value a DOM element?</span>
-<span class="line-numbers"> 456 </span>   <span class="FunctionName">_.isElement</span><span class="Keyword">:</span>    <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> obj <span class="Keyword">and</span> obj.nodeType <span class="Keyword">is</span> <span class="Number">1</span>
-<span class="line-numbers"> 457 </span> 
-<span class="line-numbers"> 458 </span> 
-<span class="line-numbers"> 459 </span>   <span class="Comment"><span class="Comment">#</span> Is a given value an array?</span>
-<span class="line-numbers"> 460 </span>   <span class="FunctionName">_.isArray</span><span class="Keyword">:</span>      <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> <span class="Keyword">!</span><span class="Keyword">!</span>(obj <span class="Keyword">and</span> obj.concat <span class="Keyword">and</span> obj.unshift)
-<span class="line-numbers"> 461 </span> 
-<span class="line-numbers"> 462 </span> 
-<span class="line-numbers"> 463 </span>   <span class="Comment"><span class="Comment">#</span> Is a given variable an arguments object?</span>
-<span class="line-numbers"> 464 </span>   <span class="FunctionName">_.isArguments</span><span class="Keyword">:</span>  <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> obj <span class="Keyword">and</span> _.isNumber(obj.length) <span class="Keyword">and</span> <span class="Keyword">not</span> obj.concat <span class="Keyword">and</span>
-<span class="line-numbers"> 465 </span>                            <span class="Keyword">not</span> obj.substr <span class="Keyword">and</span> <span class="Keyword">not</span> obj.apply <span class="Keyword">and</span> <span class="Keyword">not</span> propertyIsEnumerable.call(obj, <span class="String"><span class="String">'</span>length<span class="String">'</span></span>)
-<span class="line-numbers"> 466 </span> 
-<span class="line-numbers"> 467 </span> 
-<span class="line-numbers"> 468 </span>   <span class="Comment"><span class="Comment">#</span> Is the given value a function?</span>
-<span class="line-numbers"> 469 </span>   <span class="FunctionName">_.isFunction</span><span class="Keyword">:</span>   <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> <span class="Keyword">!</span><span class="Keyword">!</span>(obj <span class="Keyword">and</span> obj.constructor <span class="Keyword">and</span> obj.call <span class="Keyword">and</span> obj.apply)
-<span class="line-numbers"> 470 </span> 
-<span class="line-numbers"> 471 </span> 
-<span class="line-numbers"> 472 </span>   <span class="Comment"><span class="Comment">#</span> Is the given value a string?</span>
-<span class="line-numbers"> 473 </span>   <span class="FunctionName">_.isString</span><span class="Keyword">:</span>     <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> <span class="Keyword">!</span><span class="Keyword">!</span>(obj <span class="Keyword">is</span> <span class="String"><span class="String">'</span><span class="String">'</span></span> <span class="Keyword">or</span> (obj <span class="Keyword">and</span> obj.charCodeAt <span class="Keyword">and</span> obj.substr))
-<span class="line-numbers"> 474 </span> 
-<span class="line-numbers"> 475 </span> 
-<span class="line-numbers"> 476 </span>   <span class="Comment"><span class="Comment">#</span> Is a given value a number?</span>
-<span class="line-numbers"> 477 </span>   <span class="FunctionName">_.isNumber</span><span class="Keyword">:</span>     <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> (obj <span class="Keyword">is</span> <span class="Keyword">+</span>obj) <span class="Keyword">or</span> toString.call(obj) <span class="Keyword">is</span> <span class="String"><span class="String">'</span>[object Number]<span class="String">'</span></span>
-<span class="line-numbers"> 478 </span> 
-<span class="line-numbers"> 479 </span> 
-<span class="line-numbers"> 480 </span>   <span class="Comment"><span class="Comment">#</span> Is a given value a Date?</span>
-<span class="line-numbers"> 481 </span>   <span class="FunctionName">_.isDate</span><span class="Keyword">:</span>       <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> <span class="Keyword">!</span><span class="Keyword">!</span>(obj <span class="Keyword">and</span> obj.getTimezoneOffset <span class="Keyword">and</span> obj.setUTCFullYear)
-<span class="line-numbers"> 482 </span> 
-<span class="line-numbers"> 483 </span> 
-<span class="line-numbers"> 484 </span>   <span class="Comment"><span class="Comment">#</span> Is the given value a regular expression?</span>
-<span class="line-numbers"> 485 </span>   <span class="FunctionName">_.isRegExp</span><span class="Keyword">:</span>     <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> <span class="Keyword">!</span><span class="Keyword">!</span>(obj <span class="Keyword">and</span> obj.exec <span class="Keyword">and</span> (obj.ignoreCase <span class="Keyword">or</span> obj.ignoreCase <span class="Keyword">is</span> <span class="BuiltInConstant">false</span>))
-<span class="line-numbers"> 486 </span> 
-<span class="line-numbers"> 487 </span> 
-<span class="line-numbers"> 488 </span>   <span class="Comment"><span class="Comment">#</span> Is the given value NaN -- this one is interesting. NaN != NaN, and</span>
-<span class="line-numbers"> 489 </span>   <span class="Comment"><span class="Comment">#</span> isNaN(undefined) == true, so we make sure it's a number first.</span>
-<span class="line-numbers"> 490 </span>   <span class="FunctionName">_.isNaN</span><span class="Keyword">:</span>        <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> _.isNumber(obj) <span class="Keyword">and</span> window.isNaN(obj)
-<span class="line-numbers"> 491 </span> 
-<span class="line-numbers"> 492 </span> 
-<span class="line-numbers"> 493 </span>   <span class="Comment"><span class="Comment">#</span> Is a given value equal to null?</span>
-<span class="line-numbers"> 494 </span>   <span class="FunctionName">_.isNull</span><span class="Keyword">:</span>       <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> obj <span class="Keyword">is</span> <span class="BuiltInConstant">null</span>
-<span class="line-numbers"> 495 </span> 
-<span class="line-numbers"> 496 </span> 
-<span class="line-numbers"> 497 </span>   <span class="Comment"><span class="Comment">#</span> Is a given variable undefined?</span>
-<span class="line-numbers"> 498 </span>   <span class="FunctionName">_.isUndefined</span><span class="Keyword">:</span>  <span class="FunctionArgument">(</span><span class="FunctionArgument">obj</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> <span class="Keyword">typeof</span> obj <span class="Keyword">is</span> <span class="String"><span class="String">'</span>undefined<span class="String">'</span></span>
-<span class="line-numbers"> 499 </span> 
-<span class="line-numbers"> 500 </span> 
-<span class="line-numbers"> 501 </span>   <span class="Comment"><span class="Comment">#</span> -------------------------- Utility Functions: --------------------------</span>
-<span class="line-numbers"> 502 </span> 
-<span class="line-numbers"> 503 </span>   <span class="Comment"><span class="Comment">#</span> Run Underscore.js in noConflict mode, returning the '_' variable to its</span>
-<span class="line-numbers"> 504 </span>   <span class="Comment"><span class="Comment">#</span> previous owner. Returns a reference to the Underscore object.</span>
-<span class="line-numbers"> 505 </span>   <span class="FunctionName">_.noConflict</span><span class="Keyword">:</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 506 </span>     <span class="FunctionName">root._</span><span class="Keyword">:</span> previousUnderscore
-<span class="line-numbers"> 507 </span>     <span class="Variable">this</span>
-<span class="line-numbers"> 508 </span> 
-<span class="line-numbers"> 509 </span> 
-<span class="line-numbers"> 510 </span>   <span class="Comment"><span class="Comment">#</span> Keep the identity function around for default iterators.</span>
-<span class="line-numbers"> 511 </span>   <span class="FunctionName">_.identity</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">value</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span> value
-<span class="line-numbers"> 512 </span> 
-<span class="line-numbers"> 513 </span> 
-<span class="line-numbers"> 514 </span>   <span class="Comment"><span class="Comment">#</span> Break out of the middle of an iteration.</span>
-<span class="line-numbers"> 515 </span>   <span class="FunctionName">_.breakLoop</span><span class="Keyword">:</span> <span class="Storage">-&gt;</span> <span class="Keyword">throw</span> breaker
-<span class="line-numbers"> 516 </span> 
-<span class="line-numbers"> 517 </span> 
-<span class="line-numbers"> 518 </span>   <span class="Comment"><span class="Comment">#</span> Generate a unique integer id (unique within the entire client session).</span>
-<span class="line-numbers"> 519 </span>   <span class="Comment"><span class="Comment">#</span> Useful for temporary DOM ids.</span>
-<span class="line-numbers"> 520 </span>   <span class="FunctionName">idCounter</span><span class="Keyword">:</span> <span class="Number">0</span>
-<span class="line-numbers"> 521 </span>   <span class="FunctionName">_.uniqueId</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">prefix</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 522 </span>     (prefix <span class="Keyword">or</span> <span class="String"><span class="String">'</span><span class="String">'</span></span>) <span class="Keyword">+</span> idCounter<span class="Keyword">++</span>
-<span class="line-numbers"> 523 </span> 
-<span class="line-numbers"> 524 </span> 
-<span class="line-numbers"> 525 </span>   <span class="Comment"><span class="Comment">#</span> By default, Underscore uses ERB-style template delimiters, change the</span>
-<span class="line-numbers"> 526 </span>   <span class="Comment"><span class="Comment">#</span> following template settings to use alternative delimiters.</span>
-<span class="line-numbers"> 527 </span>   <span class="FunctionName">_.templateSettings</span><span class="Keyword">:</span> {
-<span class="line-numbers"> 528 </span>     <span class="FunctionName">start</span><span class="Keyword">:</span>        <span class="String"><span class="String">'</span>&lt;%<span class="String">'</span></span>
-<span class="line-numbers"> 529 </span>     <span class="FunctionName">end</span><span class="Keyword">:</span>          <span class="String"><span class="String">'</span>%&gt;<span class="String">'</span></span>
-<span class="line-numbers"> 530 </span>     <span class="FunctionName">interpolate</span><span class="Keyword">:</span><span class="String">  <span class="String">/</span>&lt;%=(.+?)%&gt;<span class="String">/</span>g</span>
-<span class="line-numbers"> 531 </span>   }
-<span class="line-numbers"> 532 </span> 
-<span class="line-numbers"> 533 </span> 
-<span class="line-numbers"> 534 </span>   <span class="Comment"><span class="Comment">#</span> JavaScript templating a-la ERB, pilfered from John Resig's</span>
-<span class="line-numbers"> 535 </span>   <span class="Comment"><span class="Comment">#</span> &quot;Secrets of the JavaScript Ninja&quot;, page 83.</span>
-<span class="line-numbers"> 536 </span>   <span class="Comment"><span class="Comment">#</span> Single-quote fix from Rick Strahl's version.</span>
-<span class="line-numbers"> 537 </span>   <span class="FunctionName">_.template</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">str, data</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 538 </span>     <span class="FunctionName">c</span><span class="Keyword">:</span> _.templateSettings
-<span class="line-numbers"> 539 </span>     <span class="FunctionName">fn</span><span class="Keyword">:</span> <span class="Keyword">new</span> <span class="TypeName">Function</span> <span class="String"><span class="String">'</span>obj<span class="String">'</span></span>,
-<span class="line-numbers"> 540 </span>       <span class="String"><span class="String">'</span>var p=[],print=function(){p.push.apply(p,arguments);};<span class="String">'</span></span> <span class="Keyword">+</span>
-<span class="line-numbers"> 541 </span>       <span class="String"><span class="String">'</span>with(obj){p.push(<span class="UserDefinedConstant">\'</span><span class="String">'</span></span> <span class="Keyword">+</span>
-<span class="line-numbers"> 542 </span>       str.replace(<span class="String"><span class="String">/</span>[<span class="UserDefinedConstant">\r</span><span class="UserDefinedConstant">\t</span><span class="UserDefinedConstant">\n</span>]<span class="String">/</span>g</span>, <span class="String"><span class="String">&quot;</span> <span class="String">&quot;</span></span>)
-<span class="line-numbers"> 543 </span>          .replace(<span class="Keyword">new</span> <span class="TypeName">RegExp</span>(<span class="String"><span class="String">&quot;</span>'(?=[^<span class="String">&quot;</span></span><span class="Keyword">+</span>c.end[<span class="Number">0</span>]<span class="Keyword">+</span><span class="String"><span class="String">&quot;</span>]*<span class="String">&quot;</span></span><span class="Keyword">+</span>c.end<span class="Keyword">+</span><span class="String"><span class="String">&quot;</span>)<span class="String">&quot;</span></span>,<span class="String"><span class="String">&quot;</span>g<span class="String">&quot;</span></span>),<span class="String"><span class="String">&quot;</span><span class="UserDefinedConstant">\t</span><span class="String">&quot;</span></span>)
-<span class="line-numbers"> 544 </span>          .split(<span class="String"><span class="String">&quot;</span>'<span class="String">&quot;</span></span>).join(<span class="String"><span class="String">&quot;</span><span class="UserDefinedConstant">\\</span>'<span class="String">&quot;</span></span>)
-<span class="line-numbers"> 545 </span>          .split(<span class="String"><span class="String">&quot;</span><span class="UserDefinedConstant">\t</span><span class="String">&quot;</span></span>).join(<span class="String"><span class="String">&quot;</span>'<span class="String">&quot;</span></span>)
-<span class="line-numbers"> 546 </span>          .replace(c.interpolate, <span class="String"><span class="String">&quot;</span>',$1,'<span class="String">&quot;</span></span>)
-<span class="line-numbers"> 547 </span>          .split(c.start).join(<span class="String"><span class="String">&quot;</span>');<span class="String">&quot;</span></span>)
-<span class="line-numbers"> 548 </span>          .split(c.end).join(<span class="String"><span class="String">&quot;</span>p.push('<span class="String">&quot;</span></span>) <span class="Keyword">+</span>
-<span class="line-numbers"> 549 </span>          <span class="String"><span class="String">&quot;</span>');}return p.join('');<span class="String">&quot;</span></span>
-<span class="line-numbers"> 550 </span>     <span class="Keyword">if</span> data <span class="Keyword">then</span> fn(data) <span class="Keyword">else</span> fn
-<span class="line-numbers"> 551 </span> 
-<span class="line-numbers"> 552 </span> 
-<span class="line-numbers"> 553 </span>   <span class="Comment"><span class="Comment">#</span> ------------------------------- Aliases ----------------------------------</span>
-<span class="line-numbers"> 554 </span> 
-<span class="line-numbers"> 555 </span>   <span class="FunctionName">_.forEach</span><span class="Keyword">:</span> _.each
-<span class="line-numbers"> 556 </span>   <span class="FunctionName">_.foldl</span><span class="Keyword">:</span>   <span class="FunctionName">_.inject</span><span class="Keyword">:</span>      _.reduce
-<span class="line-numbers"> 557 </span>   <span class="FunctionName">_.foldr</span><span class="Keyword">:</span>   _.reduceRight
-<span class="line-numbers"> 558 </span>   <span class="FunctionName">_.filter</span><span class="Keyword">:</span>  _.select
-<span class="line-numbers"> 559 </span>   <span class="FunctionName">_.every</span><span class="Keyword">:</span>   _.all
-<span class="line-numbers"> 560 </span>   <span class="FunctionName">_.some</span><span class="Keyword">:</span>    _.any
-<span class="line-numbers"> 561 </span>   <span class="FunctionName">_.head</span><span class="Keyword">:</span>    _.first
-<span class="line-numbers"> 562 </span>   <span class="FunctionName">_.tail</span><span class="Keyword">:</span>    _.rest
-<span class="line-numbers"> 563 </span>   <span class="FunctionName">_.methods</span><span class="Keyword">:</span> _.functions
-<span class="line-numbers"> 564 </span> 
-<span class="line-numbers"> 565 </span> 
-<span class="line-numbers"> 566 </span>   <span class="Comment"><span class="Comment">#</span> ------------------------ Setup the OOP Wrapper: --------------------------</span>
-<span class="line-numbers"> 567 </span> 
-<span class="line-numbers"> 568 </span>   <span class="Comment"><span class="Comment">#</span> Helper function to continue chaining intermediate results.</span>
-<span class="line-numbers"> 569 </span>   <span class="FunctionName">result</span><span class="Keyword">:</span> <span class="FunctionArgument">(</span><span class="FunctionArgument">obj, chain</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 570 </span>     <span class="Keyword">if</span> chain <span class="Keyword">then</span> _(obj).chain() <span class="Keyword">else</span> obj
-<span class="line-numbers"> 571 </span> 
-<span class="line-numbers"> 572 </span> 
-<span class="line-numbers"> 573 </span>   <span class="Comment"><span class="Comment">#</span> Add all of the Underscore functions to the wrapper object.</span>
-<span class="line-numbers"> 574 </span>   _.each _.functions(_), <span class="FunctionArgument">(</span><span class="FunctionArgument">name</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 575 </span>     <span class="FunctionName">method</span><span class="Keyword">:</span> _[name]
-<span class="line-numbers"> 576 </span>     wrapper.prototype[name]<span class="Keyword">:</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 577 </span>       unshift.call(arguments, <span class="Variable">this</span>._wrapped)
-<span class="line-numbers"> 578 </span>       result(method.apply(_, arguments), <span class="Variable">this</span>._chain)
-<span class="line-numbers"> 579 </span> 
-<span class="line-numbers"> 580 </span> 
-<span class="line-numbers"> 581 </span>   <span class="Comment"><span class="Comment">#</span> Add all mutator Array functions to the wrapper.</span>
-<span class="line-numbers"> 582 </span>   _.each [<span class="String"><span class="String">'</span>pop<span class="String">'</span></span>, <span class="String"><span class="String">'</span>push<span class="String">'</span></span>, <span class="String"><span class="String">'</span>reverse<span class="String">'</span></span>, <span class="String"><span class="String">'</span>shift<span class="String">'</span></span>, <span class="String"><span class="String">'</span>sort<span class="String">'</span></span>, <span class="String"><span class="String">'</span>splice<span class="String">'</span></span>, <span class="String"><span class="String">'</span>unshift<span class="String">'</span></span>], <span class="FunctionArgument">(</span><span class="FunctionArgument">name</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 583 </span>     <span class="FunctionName">method</span><span class="Keyword">:</span> Array.prototype[name]
-<span class="line-numbers"> 584 </span>     wrapper.prototype[name]<span class="Keyword">:</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 585 </span>       method.apply(<span class="Variable">this</span>._wrapped, arguments)
-<span class="line-numbers"> 586 </span>       result(<span class="Variable">this</span>._wrapped, <span class="Variable">this</span>._chain)
-<span class="line-numbers"> 587 </span> 
-<span class="line-numbers"> 588 </span> 
-<span class="line-numbers"> 589 </span>   <span class="Comment"><span class="Comment">#</span> Add all accessor Array functions to the wrapper.</span>
-<span class="line-numbers"> 590 </span>   _.each [<span class="String"><span class="String">'</span>concat<span class="String">'</span></span>, <span class="String"><span class="String">'</span>join<span class="String">'</span></span>, <span class="String"><span class="String">'</span>slice<span class="String">'</span></span>], <span class="FunctionArgument">(</span><span class="FunctionArgument">name</span><span class="FunctionArgument">)</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 591 </span>     <span class="FunctionName">method</span><span class="Keyword">:</span> Array.prototype[name]
-<span class="line-numbers"> 592 </span>     wrapper.prototype[name]<span class="Keyword">:</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 593 </span>       result(method.apply(<span class="Variable">this</span>._wrapped, arguments), <span class="Variable">this</span>._chain)
-<span class="line-numbers"> 594 </span> 
-<span class="line-numbers"> 595 </span> 
-<span class="line-numbers"> 596 </span>   <span class="Comment"><span class="Comment">#</span> Start chaining a wrapped Underscore object.</span>
-<span class="line-numbers"> 597 </span>   <span class="FunctionName">wrapper::chain</span><span class="Keyword">:</span> <span class="Storage">-&gt;</span>
-<span class="line-numbers"> 598 </span>     <span class="FunctionName">this._chain</span><span class="Keyword">:</span> <span class="BuiltInConstant">true</span>
-<span class="line-numbers"> 599 </span>     <span class="Variable">this</span>
-<span class="line-numbers"> 600 </span> 
-<span class="line-numbers"> 601 </span> 
-<span class="line-numbers"> 602 </span>   <span class="Comment"><span class="Comment">#</span> Extracts the result from a wrapped and chained object.</span>
-<span class="line-numbers"> 603 </span>   <span class="FunctionName">wrapper::value</span><span class="Keyword">:</span> <span class="Storage">-&gt;</span> <span class="Variable">this</span>._wrapped
-</pre>  <p>
-    <a href="http://validator.w3.org/check?uri=referer">
-      <img style="border:0"
-           src="http://www.w3.org/Icons/valid-xhtml10"
-           alt="Valid XHTML 1.0 Strict" height="31" width="88" />
-    </a>
-    <a href="http://jigsaw.w3.org/css-validator/check?uri=referer">
-      <img style="border:0;width:88px;height:31px"
-           src="http://jigsaw.w3.org/css-validator/images/vcss" 
-           alt="Valid CSS!" />
-    </a>
-  </p>
-</body>
-</html>

examples/code.coffee

@@ -140,24 +140,28 @@ sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna
 aliquam erat volutpat. Ut wisi enim ad."
 
 # Inheritance and calling super.
-Animal: ->
-Animal::move: (meters) ->
-  alert(this.name + " moved " + meters + "m.")
+class Animal
+  move: (meters) ->
+    alert this.name + " moved " + meters + "m."
 
-Snake: (name) -> this.name: name
-Snake extends Animal
-Snake::move: ->
-  alert('Slithering...')
-  super(5)
+class Snake extends Animal
+  constructor: (name) ->
+    @name: name
 
-Horse: (name) -> this.name: name
-Horse extends Animal
-Horse::move: ->
-  alert('Galloping...')
-  super(45)
+  move: ->
+    alert 'Slithering...'
+    super 5
 
-sam: new Snake("Sammy the Snake")
-tom: new Horse("Tommy the Horse")
+class Horse extends Animal
+  constructor: (name) ->
+    @name: name
+
+  move: ->
+    alert 'Galloping...'
+    super 45
+
+sam: new Snake "Sammy the Snake"
+tom: new Horse "Tommy the Horse"
 
 sam.move()
 tom.move()

examples/computer_science/linked_list.coffee

@@ -1,90 +1,92 @@
 # "Classic" linked list implementation that doesn't keep track of its size.
-LinkedList: ->
-  this._head: null # Pointer to the first item in the list.
+class LinkedList
+
+  constructor: ->
+    this._head: null # Pointer to the first item in the list.
 
 
-# Appends some data to the end of the list. This method traverses the existing
-# list and places the value at the end in a new node.
-LinkedList::add: (data) ->
+  # Appends some data to the end of the list. This method traverses the existing
+  # list and places the value at the end in a new node.
+  add: (data) ->
 
-  # Create a new node object to wrap the data.
-  node: {data: data, next: null}
+    # Create a new node object to wrap the data.
+    node: {data: data, next: null}
 
-  current: this._head ||= node
+    current: this._head ||= node
 
-  if this._head isnt node
-    current: current.next while current.next
-    current.next: node
+    if this._head isnt node
+      current: current.next while current.next
+      current.next: node
 
-  this
+    this
 
 
-# Retrieves the data at the given position in the list.
-LinkedList::item: (index) ->
+  # Retrieves the data at the given position in the list.
+  item: (index) ->
 
-  # Check for out-of-bounds values.
-  return null if index < 0
+    # Check for out-of-bounds values.
+    return null if index < 0
 
-  current: this._head or null
-  i: -1
+    current: this._head or null
+    i: -1
 
-  # Advance through the list.
-  current: current.next while current and index > (i += 1)
+    # Advance through the list.
+    current: current.next while current and index > (i += 1)
 
-  # Return null if we've reached the end.
-  current and current.data
+    # Return null if we've reached the end.
+    current and current.data
 
 
-# Remove the item from the given location in the list.
-LinkedList::remove: (index) ->
+  # Remove the item from the given location in the list.
+  remove: (index) ->
 
-  # Check for out-of-bounds values.
-  return null if index < 0
+    # Check for out-of-bounds values.
+    return null if index < 0
 
-  current: this._head or null
-  i: -1
+    current: this._head or null
+    i: -1
 
-  # Special case: removing the first item.
-  if index is 0
-    this._head: current.next
-  else
+    # Special case: removing the first item.
+    if index is 0
+      this._head: current.next
+    else
 
-    # Find the right location.
-    [previous, current]: [current, current.next] while index > (i += 1)
+      # Find the right location.
+      [previous, current]: [current, current.next] while index > (i += 1)
 
-    # Skip over the item to remove.
-    previous.next: current.next
+      # Skip over the item to remove.
+      previous.next: current.next
 
-  # Return the value.
-  current and current.data
+    # Return the value.
+    current and current.data
 
 
-# Calculate the number of items in the list.
-LinkedList::size: ->
-  current: this._head
-  count:   0
+  # Calculate the number of items in the list.
+  size: ->
+    current: this._head
+    count:   0
 
-  while current
-    count += 1
-    current: current.next
+    while current
+      count += 1
+      current: current.next
 
-  count
+    count
 
 
-# Convert the list into an array.
-LinkedList::toArray: ->
-  result:   []
-  current:  this._head
+  # Convert the list into an array.
+  toArray: ->
+    result:   []
+    current:  this._head
 
-  while current
-    result.push(current.data)
-    current: current.next
+    while current
+      result.push(current.data)
+      current: current.next
 
-  result
+    result
 
 
-# The string representation of the linked list.
-LinkedList::toString: -> this.toArray().toString()
+  # The string representation of the linked list.
+  toString: -> this.toArray().toString()
 
 
 # Tests.

examples/potion.coffee

@@ -53,16 +53,16 @@ for key, val of {dog: 'canine', cat: 'feline', fox: 'vulpine'}
 # Person print = ():
 #   ('My name is ', /name, '.') join print.
 
-Person: ->
-Person::print: ->
-  print('My name is ' + this.name + '.')
+class Person
+  print: ->
+    print 'My name is ' + this.name + '.'
 
 
 # p = Person ()
 # p /name string print
 
 p: new Person()
-print(p.name)
+print p.name
 
 
 # Policeman = Person class (rank): /rank = rank.
@@ -71,12 +71,13 @@ print(p.name)
 #
 # Policeman ('Constable') print
 
-Policeman: (rank) -> this.rank: rank
-Policeman extends Person
-Policeman::print: ->
-  print('My name is ' + this.name + " and I'm a " + this.rank + '.')
+class Policeman extends Person
+  constructor: (rank) ->
+    @rank: rank
+  print: ->
+    print 'My name is ' + this.name + " and I'm a " + this.rank + '.'
 
-print(new Policeman('Constable'))
+print new Policeman 'Constable'
 
 
 # app = [window (width=200, height=400)

examples/underscore.coffee

@@ -1,96 +1,122 @@
 
-  # Underscore.coffee
-  # (c) 2010 Jeremy Ashkenas, DocumentCloud Inc.
-  # Underscore is freely distributable under the terms of the MIT license.
-  # Portions of Underscore are inspired by or borrowed from Prototype.js,
-  # Oliver Steele's Functional, and John Resig's Micro-Templating.
+  # **Underscore.coffee
+  # (c) 2010 Jeremy Ashkenas, DocumentCloud Inc.**
+  # Underscore is freely distributable under the terms of the
+  # [MIT license](http://en.wikipedia.org/wiki/MIT_License).
+  # Portions of Underscore are inspired by or borrowed from
+  # [Prototype.js](http://prototypejs.org/api), Oliver Steele's
+  # [Functional](http://osteele.com), and John Resig's
+  # [Micro-Templating](http://ejohn.com).
   # For all details and documentation:
   # http://documentcloud.github.com/underscore/
 
 
-  # ------------------------- Baseline setup ---------------------------------
+  # Baseline setup
+  # --------------
 
-  # Establish the root object, "window" in the browser, or "global" on the server.
+  # Establish the root object, `window` in the browser, or `global` on the server.
   root: this
 
 
-  # Save the previous value of the "_" variable.
+  # Save the previous value of the `_` variable.
   previousUnderscore: root._
 
 
-  # If Underscore is called as a function, it returns a wrapped object that
-  # can be used OO-style. This wrapper holds altered versions of all the
-  # underscore functions. Wrapped objects may be chained.
-  wrapper: (obj) ->
-    this._wrapped: obj
-    this
-
-
   # Establish the object that gets thrown to break out of a loop iteration.
+  # `StopIteration` is SOP on Mozilla.
   breaker: if typeof(StopIteration) is 'undefined' then '__break__' else StopIteration
 
 
-  # Create a safe reference to the Underscore object forreference below.
-  _: root._: (obj) -> new wrapper(obj)
+  # Helper function to escape **RegExp** contents, because JS doesn't have one.
+  escapeRegExp: (string) -> string.replace(/([.*+?^${}()|[\]\/\\])/g, '\\$1')
 
 
-  # Export the Underscore object for CommonJS.
-  if typeof(exports) != 'undefined' then exports._: _
+  # Save bytes in the minified (but not gzipped) version:
+  ArrayProto:           Array.prototype
+  ObjProto:             Object.prototype
 
 
   # Create quick reference variables for speed access to core prototypes.
-  slice:                Array::slice
-  unshift:              Array::unshift
-  toString:             Object::toString
-  hasOwnProperty:       Object::hasOwnProperty
-  propertyIsEnumerable: Object::propertyIsEnumerable
+  slice:                ArrayProto.slice
+  unshift:              ArrayProto.unshift
+  toString:             ObjProto.toString
+  hasOwnProperty:       ObjProto.hasOwnProperty
+  propertyIsEnumerable: ObjProto.propertyIsEnumerable
+
+
+  # All **ECMA5** native implementations we hope to use are declared here.
+  nativeForEach:        ArrayProto.forEach
+  nativeMap:            ArrayProto.map
+  nativeReduce:         ArrayProto.reduce
+  nativeReduceRight:    ArrayProto.reduceRight
+  nativeFilter:         ArrayProto.filter
+  nativeEvery:          ArrayProto.every
+  nativeSome:           ArrayProto.some
+  nativeIndexOf:        ArrayProto.indexOf
+  nativeLastIndexOf:    ArrayProto.lastIndexOf
+  nativeIsArray:        Array.isArray
+  nativeKeys:           Object.keys
+
+
+  # Create a safe reference to the Underscore object for use below.
+  _: (obj) -> new wrapper(obj)
+
+
+  # Export the Underscore object for **CommonJS**.
+  if typeof(exports) != 'undefined' then exports._: _
+
+
+  # Export Underscore to global scope.
+  root._: _
 
 
   # Current version.
-  _.VERSION: '0.5.8'
+  _.VERSION: '1.0.2'
 
 
-  # ------------------------ Collection Functions: ---------------------------
+  # Collection Functions
+  # --------------------
 
-  # The cornerstone, an each implementation.
-  # Handles objects implementing forEach, arrays, and raw objects.
+  # The cornerstone, an **each** implementation.
+  # Handles objects implementing **forEach**, arrays, and raw objects.
   _.each: (obj, iterator, context) ->
-    index: 0
     try
-      return obj.forEach(iterator, context) if obj.forEach
-      if _.isNumber(obj.length)
-        return iterator.call(context, obj[i], i, obj) for i in [0...obj.length]
-      iterator.call(context, val, key, obj) for key, val of obj
+      if nativeForEach and obj.forEach is nativeForEach
+        obj.forEach iterator, context
+      else if _.isNumber obj.length
+        iterator.call(context, obj[i], i, obj) for i in [0...obj.length]
+      else
+        iterator.call(context, val, key, obj) for key, val of obj
     catch e
       throw e if e isnt breaker
     obj
 
 
   # Return the results of applying the iterator to each element. Use JavaScript
-  # 1.6's version of map, if possible.
+  # 1.6's version of **map**, if possible.
   _.map: (obj, iterator, context) ->
-    return obj.map(iterator, context) if (obj and _.isFunction(obj.map))
+    return obj.map(iterator, context) if nativeMap and obj.map is nativeMap
     results: []
     _.each obj, (value, index, list) ->
-      results.push(iterator.call(context, value, index, list))
+      results.push iterator.call context, value, index, list
     results
 
 
-  # Reduce builds up a single result from a list of values. Also known as
-  # inject, or foldl. Uses JavaScript 1.8's version of reduce, if possible.
+  # **Reduce** builds up a single result from a list of values. Also known as
+  # **inject**, or **foldl**. Uses JavaScript 1.8's version of **reduce**, if possible.
   _.reduce: (obj, memo, iterator, context) ->
-    return obj.reduce(_.bind(iterator, context), memo) if (obj and _.isFunction(obj.reduce))
+    return obj.reduce(_.bind(iterator, context), memo) if nativeReduce and obj.reduce is nativeReduce
     _.each obj, (value, index, list) ->
-      memo: iterator.call(context, memo, value, index, list)
+      memo: iterator.call context, memo, value, index, list
     memo
 
 
-  # The right-associative version of reduce, also known as foldr. Uses
-  # JavaScript 1.8's version of reduceRight, if available.
+  # The right-associative version of **reduce**, also known as **foldr**. Uses
+  # JavaScript 1.8's version of **reduceRight**, if available.
   _.reduceRight: (obj, memo, iterator, context) ->
-    return obj.reduceRight(_.bind(iterator, context), memo) if (obj and _.isFunction(obj.reduceRight))
+    return obj.reduceRight(_.bind(iterator, context), memo) if nativeReduceRight and obj.reduceRight is nativeReduceRight
     _.each _.clone(_.toArray(obj)).reverse(), (value, index) ->
-      memo: iterator.call(context, memo, value, index, obj)
+      memo: iterator.call context, memo, value, index, obj
     memo
 
 
@@ -98,19 +124,19 @@
   _.detect: (obj, iterator, context) ->
     result: null
     _.each obj, (value, index, list) ->
-      if iterator.call(context, value, index, list)
+      if iterator.call context, value, index, list
         result: value
         _.breakLoop()
     result
 
 
   # Return all the elements that pass a truth test. Use JavaScript 1.6's
-  # filter(), if it exists.
-  _.select: (obj, iterator, context) ->
-    if obj and _.isFunction(obj.filter) then return obj.filter(iterator, context)
+  # **filter**, if it exists.
+  _.filter: (obj, iterator, context) ->
+    return obj.filter iterator, context if nativeFilter and obj.filter is nativeFilter
     results: []
     _.each obj, (value, index, list) ->
-      results.push(value) if iterator.call(context, value, index, list)
+      results.push value if iterator.call context, value, index, list
     results
 
 
@@ -118,15 +144,15 @@
   _.reject: (obj, iterator, context) ->
     results: []
     _.each obj, (value, index, list) ->
-      results.push(value) if not iterator.call(context, value, index, list)
+      results.push value if not iterator.call context, value, index, list
     results
 
 
   # Determine whether all of the elements match a truth test. Delegate to
-  # JavaScript 1.6's every(), if it is present.
-  _.all: (obj, iterator, context) ->
+  # JavaScript 1.6's **every**, if it is present.
+  _.every: (obj, iterator, context) ->
     iterator ||= _.identity
-    return obj.every(iterator, context) if obj and _.isFunction(obj.every)
+    return obj.every iterator, context if nativeEvery and obj.every is nativeEvery
     result: true
     _.each obj, (value, index, list) ->
       _.breakLoop() unless (result: result and iterator.call(context, value, index, list))
@@ -134,10 +160,10 @@
 
 
   # Determine if at least one element in the object matches a truth test. Use
-  # JavaScript 1.6's some(), if it exists.
-  _.any: (obj, iterator, context) ->
+  # JavaScript 1.6's **some**, if it exists.
+  _.some: (obj, iterator, context) ->
     iterator ||= _.identity
-    return obj.some(iterator, context) if obj and _.isFunction(obj.some)
+    return obj.some iterator, context if nativeSome and obj.some is nativeSome
     result: false
     _.each obj, (value, index, list) ->
       _.breakLoop() if (result: iterator.call(context, value, index, list))
@@ -145,9 +171,9 @@
 
 
   # Determine if a given value is included in the array or object,
-  # based on '==='.
+  # based on `===`.
   _.include: (obj, target) ->
-    return _.indexOf(obj, target) isnt -1 if obj and _.isFunction(obj.indexOf)
+    return _.indexOf(obj, target) isnt -1 if nativeIndexOf and obj.indexOf is nativeIndexOf
     for key, val of obj
       return true if val is target
     false
@@ -155,13 +181,13 @@
 
   # Invoke a method with arguments on every item in a collection.
   _.invoke: (obj, method) ->
-    args: _.rest(arguments, 2)
+    args: _.rest arguments, 2
     (if method then val[method] else val).apply(val, args) for val in obj
 
 
-  # Convenience version of a common use case of map: fetching a property.
+  # Convenience version of a common use case of **map**: fetching a property.
   _.pluck: (obj, key) ->
-    _.map(obj, ((val) -> val[key]))
+    _.map(obj, (val) -> val[key])
 
 
   # Return the maximum item or (item-based computation).
@@ -184,7 +210,7 @@
     result.value
 
 
-  # Sort the object's values by a criteria produced by an iterator.
+  # Sort the object's values by a criterion produced by an iterator.
   _.sortBy: (obj, iterator, context) ->
     _.pluck(((_.map obj, (value, index, list) ->
       {value: value, criteria: iterator.call(context, value, index, list)}
@@ -198,7 +224,8 @@
   # be inserted so as to maintain order. Uses binary search.
   _.sortedIndex: (array, obj, iterator) ->
     iterator ||= _.identity
-    low: 0; high: array.length
+    low:  0
+    high: array.length
     while low < high
       mid: (low + high) >> 1
       if iterator(array[mid]) < iterator(obj) then low: mid + 1 else high: mid
@@ -218,19 +245,20 @@
   _.size: (obj) -> _.toArray(obj).length
 
 
-  # -------------------------- Array Functions: ------------------------------
+  # Array Functions
+  # ---------------
 
-  # Get the first element of an array. Passing "n" will return the first N
-  # values in the array. Aliased as "head". The "guard" check allows it to work
-  # with _.map.
+  # Get the first element of an array. Passing `n` will return the first N
+  # values in the array. Aliased as **head**. The `guard` check allows it to work
+  # with **map**.
   _.first: (array, n, guard) ->
     if n and not guard then slice.call(array, 0, n) else array[0]
 
 
-  # Returns everything but the first entry of the array. Aliased as "tail".
-  # Especially useful on the arguments object. Passing an "index" will return
-  # the rest of the values in the array from that index onward. The "guard"
-  # check allows it to work with _.map.
+  # Returns everything but the first entry of the array. Aliased as **tail**.
+  # Especially useful on the arguments object. Passing an `index` will return
+  # the rest of the values in the array from that index onward. The `guard`
+  # check allows it to work with **map**.
   _.rest: (array, index, guard) ->
     slice.call(array, if _.isUndefined(index) or guard then 1 else index)
 
@@ -246,30 +274,30 @@
   # Return a completely flattened version of an array.
   _.flatten: (array) ->
     _.reduce array, [], (memo, value) ->
-      return memo.concat(_.flatten(value)) if _.isArray(value)
-      memo.push(value)
+      return memo.concat(_.flatten(value)) if _.isArray value
+      memo.push value
       memo
 
 
   # Return a version of the array that does not contain the specified value(s).
   _.without: (array) ->
-    values: _.rest(arguments)
-    val for val in _.toArray(array) when not _.include(values, val)
+    values: _.rest arguments
+    val for val in _.toArray(array) when not _.include values, val
 
 
   # Produce a duplicate-free version of the array. If the array has already
   # been sorted, you have the option of using a faster algorithm.
   _.uniq: (array, isSorted) ->
     memo: []
-    for el, i in _.toArray(array)
-      memo.push(el) if i is 0 || (if isSorted is true then _.last(memo) isnt el else not _.include(memo, el))
+    for el, i in _.toArray array
+      memo.push el if i is 0 || (if isSorted is true then _.last(memo) isnt el else not _.include(memo, el))
     memo
 
 
   # Produce an array that contains every item shared between all the
   # passed-in arrays.
   _.intersect: (array) ->
-    rest: _.rest(arguments)
+    rest: _.rest arguments
     _.select _.uniq(array), (item) ->
       _.all rest, (other) ->
         _.indexOf(other, item) >= 0
@@ -278,28 +306,28 @@
   # Zip together multiple lists into a single array -- elements that share
   # an index go together.
   _.zip: ->
-    length:     _.max(_.pluck(arguments, 'length'))
-    results:    new Array(length)
+    length:  _.max _.pluck arguments, 'length'
+    results: new Array length
     for i in [0...length]
-      results[i]: _.pluck(arguments, String(i))
+      results[i]: _.pluck arguments, String i
     results
 
 
-  # If the browser doesn't supply us with indexOf (I'm looking at you, MSIE),
+  # If the browser doesn't supply us with **indexOf** (I'm looking at you, MSIE),
   # we need this function. Return the position of the first occurence of an
   # item in an array, or -1 if the item is not included in the array.
   _.indexOf: (array, item) ->
-    return array.indexOf(item) if array.indexOf
+    return array.indexOf item if nativeIndexOf and array.indexOf is nativeIndexOf
     i: 0; l: array.length
     while l - i
       if array[i] is item then return i else i++
     -1
 
 
-  # Provide JavaScript 1.6's lastIndexOf, delegating to the native function,
+  # Provide JavaScript 1.6's **lastIndexOf**, delegating to the native function,
   # if possible.
   _.lastIndexOf: (array, item) ->
-    return array.lastIndexOf(item) if array.lastIndexOf
+    return array.lastIndexOf(item) if nativeLastIndexOf and array.lastIndexOf is nativeLastIndexOf
     i: array.length
     while i
       if array[i] is item then return i else i--
@@ -307,8 +335,7 @@
 
 
   # Generate an integer Array containing an arithmetic progression. A port of
-  # the native Python range() function. See:
-  # http://docs.python.org/library/functions.html#range
+  # [the native Python **range** function](http://docs.python.org/library/functions.html#range).
   _.range: (start, stop, step) ->
     a:        arguments
     solo:     a.length <= 1
@@ -317,7 +344,7 @@
     step:     a[2] or 1
     len:      Math.ceil((stop - start) / step)
     return [] if len <= 0
-    range:    new Array(len)
+    range:    new Array len
     idx:      0
     while true
       return range if (if step > 0 then i - stop else stop - i) >= 0
@@ -326,41 +353,42 @@
       i+= step
 
 
-  # ----------------------- Function Functions: -----------------------------
+  # Function Functions
+  # ------------------
 
-  # Create a function bound to a given object (assigning 'this', and arguments,
-  # optionally). Binding with arguments is also known as 'curry'.
+  # Create a function bound to a given object (assigning `this`, and arguments,
+  # optionally). Binding with arguments is also known as **curry**.
   _.bind: (func, obj) ->
-    args: _.rest(arguments, 2)
-    -> func.apply(obj or root, args.concat(arguments))
+    args: _.rest arguments, 2
+    -> func.apply obj or root, args.concat arguments
 
 
   # Bind all of an object's methods to that object. Useful for ensuring that
   # all callbacks defined on an object belong to it.
   _.bindAll: (obj) ->
     funcs: if arguments.length > 1 then _.rest(arguments) else _.functions(obj)
-    _.each(funcs, (f) -> obj[f]: _.bind(obj[f], obj))
+    _.each funcs, (f) -> obj[f]: _.bind obj[f], obj
     obj
 
 
   # Delays a function for the given number of milliseconds, and then calls
   # it with the arguments supplied.
   _.delay: (func, wait) ->
-    args: _.rest(arguments, 2)
+    args: _.rest arguments, 2
     setTimeout((-> func.apply(func, args)), wait)
 
 
   # Defers a function, scheduling it to run after the current call stack has
   # cleared.
   _.defer: (func) ->
-    _.delay.apply(_, [func, 1].concat(_.rest(arguments)))
+    _.delay.apply _, [func, 1].concat _.rest arguments
 
 
   # Returns the first function passed as an argument to the second,
   # allowing you to adjust arguments, run code before and after, and
   # conditionally execute the original function.
   _.wrap: (func, wrapper) ->
-    -> wrapper.apply(wrapper, [func].concat(arguments))
+    -> wrapper.apply wrapper, [func].concat arguments
 
 
   # Returns a function that is the composition of a list of functions, each
@@ -374,41 +402,42 @@
       args[0]
 
 
-  # ------------------------- Object Functions: ----------------------------
+  # Object Functions
+  # ----------------
 
   # Retrieve the names of an object's properties.
-  _.keys: (obj) ->
-    return _.range(0, obj.length) if _.isArray(obj)
+  _.keys: nativeKeys or (obj) ->
+    return _.range 0, obj.length if _.isArray(obj)
     key for key, val of obj
 
 
   # Retrieve the values of an object's properties.
   _.values: (obj) ->
-    _.map(obj, _.identity)
+    _.map obj, _.identity
 
 
   # Return a sorted list of the function names available in Underscore.
   _.functions: (obj) ->
-    _.select(_.keys(obj), (key) -> _.isFunction(obj[key])).sort()
+    _.filter(_.keys(obj), (key) -> _.isFunction(obj[key])).sort()
 
 
   # Extend a given object with all of the properties in a source object.
-  _.extend: (destination, source) ->
-    for key, val of source
-      destination[key]: val
-    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.
   _.clone: (obj) ->
-    return obj.slice(0) if _.isArray(obj)
-    _.extend({}, obj)
+    return obj.slice 0 if _.isArray obj
+    _.extend {}, obj
 
 
   # Invokes interceptor with the obj, and then returns obj.
   # The primary purpose of this method is to "tap into" a method chain, in order to perform operations on intermediate results within the chain.
   _.tap: (obj, interceptor) ->
-    interceptor(obj)
+    interceptor obj
     obj
 
 
@@ -423,7 +452,7 @@
     return true if `a == b`
     # One is falsy and the other truthy.
     return false if (!a and b) or (a and !b)
-    # One of them implements an isEqual()?
+    # One of them implements an `isEqual()`?
     return a.isEqual(b) if a.isEqual
     # Check dates' integer values.
     return a.getTime() is b.getTime() if _.isDate(a) and _.isDate(b)
@@ -444,12 +473,15 @@
     # Different object sizes?
     return false if aKeys.length isnt bKeys.length
     # Recursive comparison of contents.
-    # for (var key in a) if (!_.isEqual(a[key], b[key])) return false;
-    return true
+    (return false) for key, val of a when !(key in b) or !_.isEqual(val, b[key])
+    true
 
 
   # Is a given array or object empty?
-  _.isEmpty:      (obj) -> _.keys(obj).length is 0
+  _.isEmpty: (obj) ->
+    return obj.length is 0 if _.isArray obj
+    (return false) for key of obj when hasOwnProperty.call(obj, key)
+    true
 
 
   # Is a given value a DOM element?
@@ -457,12 +489,11 @@
 
 
   # Is a given value an array?
-  _.isArray:      (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?
@@ -477,6 +508,10 @@
   _.isNumber:     (obj) -> (obj is +obj) or toString.call(obj) is '[object Number]'
 
 
+  # Is a given value a boolean?
+  _.isBoolean:    (obj) -> obj is true or obj is false
+
+
   # Is a given value a Date?
   _.isDate:       (obj) -> !!(obj and obj.getTimezoneOffset and obj.setUTCFullYear)
 
@@ -485,8 +520,8 @@
   _.isRegExp:     (obj) -> !!(obj and obj.exec and (obj.ignoreCase or obj.ignoreCase is false))
 
 
-  # Is the given value NaN -- this one is interesting. NaN != NaN, and
-  # isNaN(undefined) == true, so we make sure it's a number first.
+  # Is the given value NaN -- this one is interesting. `NaN != NaN`, and
+  # `isNaN(undefined) == true`, so we make sure it's a number first.
   _.isNaN:        (obj) -> _.isNumber(obj) and window.isNaN(obj)
 
 
@@ -498,9 +533,10 @@
   _.isUndefined:  (obj) -> typeof obj is 'undefined'
 
 
-  # -------------------------- Utility Functions: --------------------------
+  # Utility Functions
+  # -----------------
 
-  # Run Underscore.js in noConflict mode, returning the '_' variable to its
+  # Run Underscore.js in noConflict mode, returning the `_` variable to its
   # previous owner. Returns a reference to the Underscore object.
   _.noConflict: ->
     root._: previousUnderscore
@@ -511,10 +547,22 @@
   _.identity: (value) -> value
 
 
+  # Run a function `n` times.
+  _.times: (n, iterator, context) ->
+    iterator.call(context, i) for i in [0...n]
+
+
   # Break out of the middle of an iteration.
   _.breakLoop: -> throw breaker
 
 
+  # Add your own custom functions to the Underscore object, ensuring that
+  # they're correctly added to the OOP wrapper as well.
+  _.mixin: (obj) ->
+    for name in _.functions(obj)
+      addToWrapper name, _[name]: obj[name]
+
+
   # Generate a unique integer id (unique within the entire client session).
   # Useful for temporary DOM ids.
   idCounter: 0
@@ -522,7 +570,7 @@
     (prefix or '') + idCounter++
 
 
-  # By default, Underscore uses ERB-style template delimiters, change the
+  # By default, Underscore uses **ERB**-style template delimiters, change the
   # following template settings to use alternative delimiters.
   _.templateSettings: {
     start:        '<%'
@@ -531,16 +579,17 @@
   }
 
 
-  # JavaScript templating a-la ERB, pilfered from John Resig's
-  # "Secrets of the JavaScript Ninja", page 83.
-  # Single-quote fix from Rick Strahl's version.
+  # JavaScript templating a-la **ERB**, pilfered from John Resig's
+  # *Secrets of the JavaScript Ninja*, page 83.
+  # Single-quote fix from Rick Strahl.
   _.template: (str, data) ->
     c: _.templateSettings
+    endMatch: new RegExp("'(?=[^"+c.end.substr(0, 1)+"]*"+escapeRegExp(c.end)+")","g")
     fn: new Function 'obj',
       'var p=[],print=function(){p.push.apply(p,arguments);};' +
       'with(obj){p.push(\'' +
       str.replace(/[\r\t\n]/g, " ")
-         .replace(new RegExp("'(?=[^"+c.end[0]+"]*"+c.end+")","g"),"\t")
+         .replace(endMatch,"\t")
          .split("'").join("\\'")
          .split("\t").join("'")
          .replace(c.interpolate, "',$1,'")
@@ -550,32 +599,46 @@
     if data then fn(data) else fn
 
 
-  # ------------------------------- Aliases ----------------------------------
+  # Aliases
+  # -------
 
   _.forEach: _.each
   _.foldl:   _.inject:      _.reduce
   _.foldr:   _.reduceRight
-  _.filter:  _.select
-  _.every:   _.all
-  _.some:    _.any
+  _.select:  _.filter
+  _.all:     _.every
+  _.any:     _.some
   _.head:    _.first
   _.tail:    _.rest
   _.methods: _.functions
 
 
-  # ------------------------ Setup the OOP Wrapper: --------------------------
+  # Setup the OOP Wrapper
+  # ---------------------
+
+  # If Underscore is called as a function, it returns a wrapped object that
+  # can be used OO-style. This wrapper holds altered versions of all the
+  # underscore functions. Wrapped objects may be chained.
+  wrapper: (obj) ->
+    this._wrapped: obj
+    this
+
 
   # Helper function to continue chaining intermediate results.
   result: (obj, chain) ->
     if chain then _(obj).chain() else obj
 
 
-  # Add all of the Underscore functions to the wrapper object.
-  _.each _.functions(_), (name) ->
-    method: _[name]
+  # A method to easily add functions to the OOP wrapper.
+  addToWrapper: (name, func) ->
     wrapper.prototype[name]: ->
-      unshift.call(arguments, this._wrapped)
-      result(method.apply(_, arguments), this._chain)
+      args: _.toArray arguments
+      unshift.call args, this._wrapped
+      result func.apply(_, args), this._chain
+
+
+  # Add all of the Underscore functions to the wrapper object.
+  _.mixin _
 
 
   # Add all mutator Array functions to the wrapper.

examples/web_server.coffee

@@ -1,12 +1,13 @@
 # Contributed by Jason Huggins
 
+sys:  require 'sys'
 http: require 'http'
 
 server: http.createServer (req, res) ->
-  res.sendHeader 200, {'Content-Type': 'text/plain'}
-  res.sendBody 'Hello, World!'
-  res.finish()
+  res.writeHeader 200, {'Content-Type': 'text/plain'}
+  res.write 'Hello, World!'
+  res.end()
 
 server.listen 3000
 
-puts "Server running at http://localhost:3000/"
+sys.puts "Server running at http://localhost:3000/"

extras/CoffeeScript.tmbundle/Preferences/CoffeeScript.tmPreferences

@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>name</key>
-	<string>comments</string>
-	<key>scope</key>
-	<string>source.coffee</string>
-	<key>settings</key>
-	<dict>
-		<key>shellVariables</key>
-		<array>
-			<dict>
-				<key>name</key>
-				<string>TM_COMMENT_START</string>
-				<key>value</key>
-				<string># </string>
-			</dict>
-		</array>
-	</dict>
-	<key>uuid</key>
-	<string>0A92C6F6-4D73-4859-B38C-4CC19CBC191F</string>
-</dict>
-</plist>

extras/CoffeeScript.tmbundle/Syntaxes/CoffeeScript.tmLanguage

@@ -1,361 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>comment</key>
-	<string>CoffeeScript Syntax: version 1</string>
-	<key>fileTypes</key>
-	<array>
-		<string>coffee</string>
-	</array>
-	<key>name</key>
-	<string>CoffeeScript</string>
-	<key>foldingStartMarker</key>
-	<string>^.*[:=] \{[^\}]*$</string>
-	<key>foldingStopMarker</key>
-	<string>\s*\}</string>
-	<key>patterns</key>
-	<array>
-		<dict>
-			<key>captures</key>
-			<dict>
-			  <key>1</key>
-				<dict>
-					<key>name</key>
-					<string>variable.parameter.function.coffee</string>
-				</dict>
-				<key>2</key>
-				<dict>
-					<key>name</key>
-					<string>variable.parameter.function.coffee</string>
-				</dict>
-				<key>4</key>
-				<dict>
-					<key>name</key>
-					<string>variable.parameter.function.coffee</string>
-				</dict>
-				<key>5</key>
-				<dict>
-					<key>name</key>
-					<string>storage.type.function.coffee</string>
-				</dict>
-			</dict>
-			<key>comment</key>
-			<string>match stuff like: a -&gt; … </string>
-			<key>match</key>
-			<string>(\()([a-zA-Z0-9_?.$]*(,\s*[a-zA-Z0-9_?.$]+)*)(\))\s*((=|-)&gt;)</string>
-			<key>name</key>
-			<string>meta.inline.function.coffee</string>
-		</dict>
-		<dict>
-			<key>captures</key>
-			<dict>
-				<key>1</key>
-				<dict>
-					<key>name</key>
-					<string>keyword.operator.new.coffee</string>
-				</dict>
-				<key>2</key>
-				<dict>
-					<key>name</key>
-					<string>entity.name.type.instance.coffee</string>
-				</dict>
-			</dict>
-			<key>match</key>
-			<string>(new)\s+(\w+(?:\.\w*)?)</string>
-			<key>name</key>
-			<string>meta.class.instance.constructor</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\b((0(x|X)[0-9a-fA-F]+)|([0-9]+(\.[0-9]+)?(e[+\-]?[0-9]+)?))\b</string>
-			<key>name</key>
-			<string>constant.numeric.coffee</string>
-		</dict>
-		<dict>
-		  <key>match</key>
-		  <string>(@)([a-zA-Z_$]\w*)?</string>
-		  <key>name</key>
-		  <string>variable.other.readwrite.instance.coffee</string>
-		</dict>
-    <dict>
-      <key>name</key>
-      <string>string.quoted.heredoc.coffee</string>
-      <key>begin</key>
-      <string>("""|''')</string>
-      <key>end</key>
-      <string>("""|''')</string>
-      <key>beginCaptures</key>
-      <dict>
-				<key>0</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.begin.coffee</string>
-				</dict>
-			</dict>
-      <key>endCaptures</key>
-      <dict>
-				<key>0</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.end.coffee</string>
-				</dict>
-			</dict>
-    </dict>
-		<dict>
-			<key>begin</key>
-			<string>'</string>
-			<key>beginCaptures</key>
-			<dict>
-				<key>0</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.begin.coffee</string>
-				</dict>
-			</dict>
-			<key>end</key>
-			<string>'</string>
-			<key>endCaptures</key>
-			<dict>
-				<key>0</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.end.coffee</string>
-				</dict>
-			</dict>
-			<key>name</key>
-			<string>string.quoted.single.coffee</string>
-			<key>patterns</key>
-			<array>
-				<dict>
-					<key>match</key>
-					<string>\\(x\h{2}|[0-2][0-7]{,2}|3[0-6][0-7]?|37[0-7]?|[4-7][0-7]?|.)</string>
-					<key>name</key>
-					<string>constant.character.escape.coffee</string>
-				</dict>
-			</array>
-		</dict>
-		<dict>
-			<key>begin</key>
-			<string>"</string>
-			<key>beginCaptures</key>
-			<dict>
-				<key>0</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.begin.coffee</string>
-				</dict>
-			</dict>
-			<key>end</key>
-			<string>"</string>
-			<key>endCaptures</key>
-			<dict>
-				<key>0</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.end.coffee</string>
-				</dict>
-			</dict>
-			<key>name</key>
-			<string>string.quoted.double.coffee</string>
-			<key>patterns</key>
-			<array>
-				<dict>
-					<key>match</key>
-					<string>\\(x\h{2}|[0-2][0-7]{,2}|3[0-6][0-7]|37[0-7]?|[4-7][0-7]?|.)</string>
-					<key>name</key>
-					<string>constant.character.escape.coffee</string>
-				</dict>
-			</array>
-		</dict>
-		<dict>
-			<key>begin</key>
-			<string>`</string>
-			<key>beginCaptures</key>
-			<dict>
-				<key>0</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.begin.coffee</string>
-				</dict>
-			</dict>
-			<key>end</key>
-			<string>`</string>
-			<key>endCaptures</key>
-			<dict>
-				<key>0</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.end.coffee</string>
-				</dict>
-			</dict>
-			<key>name</key>
-			<string>string.quoted.script.coffee</string>
-			<key>patterns</key>
-			<array>
-				<dict>
-					<key>match</key>
-					<string>\\(x\h{2}|[0-2][0-7]{,2}|3[0-6][0-7]|37[0-7]?|[4-7][0-7]?|.)</string>
-					<key>name</key>
-					<string>constant.character.escape.coffee</string>
-				</dict>
-			</array>
-		</dict>
-		<dict>
-			<key>captures</key>
-			<dict>
-				<key>1</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.comment.coffee</string>
-				</dict>
-			</dict>
-			<key>match</key>
-			<string>(#).*$\n?</string>
-			<key>name</key>
-			<string>comment.line.coffee</string>
-		</dict>
-		<dict>
-			<key>begin</key>
-			<string>(?&lt;=[=(:]|^|return)\s*(/)(?![/*+{}?])</string>
-			<key>beginCaptures</key>
-			<dict>
-				<key>1</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.begin.coffee</string>
-				</dict>
-			</dict>
-			<key>end</key>
-			<string>(/)[igm]*</string>
-			<key>endCaptures</key>
-			<dict>
-				<key>1</key>
-				<dict>
-					<key>name</key>
-					<string>punctuation.definition.string.end.coffee</string>
-				</dict>
-			</dict>
-			<key>name</key>
-			<string>string.regexp.coffee</string>
-			<key>patterns</key>
-			<array>
-				<dict>
-					<key>match</key>
-					<string>\\.</string>
-					<key>name</key>
-					<string>constant.character.escape.coffee</string>
-				</dict>
-			</array>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\b(break|by|catch|continue|else|finally|for|in|of|if|return|switch|then|throw|try|unless|when|while)\b</string>
-			<key>name</key>
-			<string>keyword.control.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\b([a-zA-Z$_](\w|\$|:|\.)*\s*(?=\:))</string>
-			<key>name</key>
-			<string>variable.assignment.coffee</string>
-			<key>captures</key>
-			<dict>
-				<key>1</key>
-				<dict>
-					<key>name</key>
-					<string>entity.name.function.coffee</string>
-				</dict>
-			</dict>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\b(true|on|yes)\b</string>
-			<key>name</key>
-			<string>constant.language.boolean.true.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\b(false|off|no)\b</string>
-			<key>name</key>
-			<string>constant.language.boolean.false.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\bnull\b</string>
-			<key>name</key>
-			<string>constant.language.null.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\b(super|this|extends)\b</string>
-			<key>name</key>
-			<string>variable.language.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\b(debugger|\\)\b</string>
-			<key>name</key>
-			<string>keyword.other.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>(=|-)&gt;</string>
-			<key>name</key>
-			<string>storage.type.function.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>!|%|&amp;|\*|\/|\-\-|\-|\+\+|\+|~|===|==|=|!=|!==|&lt;=|&gt;=|&lt;&lt;=|&gt;&gt;=|&gt;&gt;&gt;=|&lt;&gt;|&lt;|&gt;|!|&amp;&amp;|\?|\|\||\:|\*=|(?&lt;!\()/=|%=|\+=|\-=|&amp;=|\^=|\b(instanceof|new|delete|typeof|and|or|is|isnt|not)\b</string>
-			<key>name</key>
-			<string>keyword.operator.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\b(Infinity|NaN|undefined)\b</string>
-			<key>name</key>
-			<string>constant.language.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\;</string>
-			<key>name</key>
-			<string>punctuation.terminator.statement.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>,[ |\t]*</string>
-			<key>name</key>
-			<string>meta.delimiter.object.comma.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\.</string>
-			<key>name</key>
-			<string>meta.delimiter.method.period.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\{|\}</string>
-			<key>name</key>
-			<string>meta.brace.curly.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\(|\)</string>
-			<key>name</key>
-			<string>meta.brace.round.coffee</string>
-		</dict>
-		<dict>
-			<key>match</key>
-			<string>\[|\]</string>
-			<key>name</key>
-			<string>meta.brace.square.coffee</string>
-		</dict>
-	</array>
-	<key>scopeName</key>
-	<string>source.coffee</string>
-	<key>uuid</key>
-	<string>5B520980-A7D5-4E10-8582-1A4C889A8DE5</string>
-</dict>
-</plist>

extras/CoffeeScript.tmbundle/info.plist

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>name</key>
-	<string>CoffeeScript</string>
-	<key>uuid</key>
-	<string>A46E4382-F1AC-405B-8F22-65FF470F34D7</string>
-</dict>
-</plist>

extras/EXTRAS

@@ -5,24 +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 rough cuts of CoffeeScript syntax highlighters for 
-TextMate and Vim. Improvements to their lexing ability are always welcome.
-
-To install the TextMate bundle, drop it into:
-  ~/Library/Application Support/TextMate/Bundles
-
-To install the Vim highlighter, 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/bin/cake

@@ -1,7 +0,0 @@
-#!/usr/bin/env node
-
-process.mixin(require('sys'));
-
-require.paths.unshift('/usr/local/lib/coffee-script/lib');
-
-require('cake').run();

lib/bin/coffee

@@ -1,7 +0,0 @@
-#!/usr/bin/env node
-
-process.mixin(require('sys'));
-
-require.paths.unshift('/usr/local/lib/coffee-script/lib');
-
-require('command_line').run();

lib/cake.js

@@ -1,80 +1,106 @@
 (function(){
-  var coffee, fs, no_such_task, path, print_tasks, tasks;
+  var CoffeeScript, fs, helpers, no_such_task, oparse, options, optparse, path, print_tasks, switches, tasks;
   var __hasProp = Object.prototype.hasOwnProperty;
-  // `cake` is a simplified version of Make (Rake, Jake) for CoffeeScript.
+  // `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');
-  coffee = require('coffee-script');
+  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 = {};
-  no_such_task = function no_such_task(task) {
-    process.stdio.writeError('No such task: "' + task + '"\n');
-    return process.exit(1);
-  };
-  // Mixin the Cake functionality.
-  process.mixin({
-    // Define a task with a name, a description, and the action itself.
-    task: function task(name, description, action) {
-      return tasks[name] = {
+  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, an optional sentence description,
+    // and the function to run as the action itself.
+    task: function(name, description, action) {
+      var _a;
+      if (!(action)) {
+        _a = [description, action];
+        action = _a[0];
+        description = _a[1];
+      }
+      tasks[name] = {
         name: name,
         description: description,
         action: action
       };
+      return tasks[name];
     },
-    // Invoke another task in the Cakefile.
-    invoke: function invoke(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(letter, flag, description) {
+      return switches.push([letter, flag, description]);
+    },
+    // Invoke another task in the current Cakefile.
+    invoke: function(name) {
       if (!(tasks[name])) {
         no_such_task(name);
       }
-      return tasks[name].action();
+      return tasks[name].action(options);
     }
   });
-  // Display the list of Cake tasks.
-  print_tasks = function print_tasks() {
-    var _a, _b, _c, _d, _e, _f, _g, i, name, spaces, task;
-    _a = []; _b = tasks;
-    for (name in _b) { if (__hasProp.call(_b, name)) {
-      task = _b[name];
-      _a.push((function() {
-        spaces = 20 - name.length;
-        spaces = spaces > 0 ? (function() {
-          _c = []; _f = 0; _g = spaces;
-          for (_e = 0, i=_f; (_f <= _g ? i <= _g : i >= _g); (_f <= _g ? i += 1 : i -= 1), _e++) {
-            _c.push(' ');
-          }
-          return _c;
-        }).call(this).join('') : '';
-        return puts("cake " + name + spaces + ' # ' + task.description);
-      }).call(this));
-    }}
-    return _a;
-  };
-  // Running `cake` runs the tasks you pass asynchronously (node-style), or
-  // prints them out, with no arguments.
-  exports.run = function run() {
+  // 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() {
     return path.exists('Cakefile', function(exists) {
-      var args;
+      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);
-      return fs.readFile('Cakefile', function(err, source) {
-        var _a, _b, _c, arg;
-        eval(coffee.compile(source));
-        if (!(args.length)) {
-          return print_tasks();
-        }
-        _a = []; _b = args;
-        for (_c = 0; _c < _b.length; _c++) {
-          arg = _b[_c];
-          _a.push((function() {
-            if (!(tasks[arg])) {
-              no_such_task(arg);
-            }
-            return tasks[arg].action();
-          }).call(this));
-        }
-        return _a;
+      args = process.argv.slice(2, process.argv.length);
+      CoffeeScript.run(fs.readFileSync('Cakefile').toString(), {
+        source: 'Cakefile'
       });
+      oparse = new optparse.OptionParser(switches);
+      if (!(args.length)) {
+        return print_tasks();
+      }
+      options = oparse.parse(args);
+      _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() {
+    var _a, _b, _c, _d, 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 = []; _c = 0; _d = spaces;
+        for (i = _c; (_c <= _d ? i <= _d : i >= _d); (_c <= _d ? i += 1 : i -= 1)) {
+          _b.push(' ');
+        }
+        return _b;
+      })().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(task) {
+    puts(("No such task: \"" + task + "\""));
+    return process.exit(1);
+  };
 })();

lib/coffee-script.js

@@ -1,19 +1,74 @@
 (function(){
-  var _a, _b, lexer, parser, path, tag;
-  // Set up for both the browser and the server.
+  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)) {
-    process.mixin(require('nodes'));
     path = require('path');
-    lexer = new (require('lexer').Lexer)();
-    parser = require('parser').parser;
+    Lexer = require('./lexer').Lexer;
+    parser = require('./parser').parser;
+    helpers = require('./helpers').helpers;
+    helpers.extend(global, require('./nodes'));
+    require.registerExtension ? require.registerExtension('.coffee', function(content) {
+      return compile(content);
+    }) : null;
   } else {
-    lexer = new Lexer();
-    parser = exports.parser;
     this.exports = (this.CoffeeScript = {});
+    Lexer = this.Lexer;
+    parser = this.parser;
+    helpers = this.helpers;
   }
-  // Thin wrapper for Jison compatibility around the real lexer.
+  // The current CoffeeScript version number.
+  exports.VERSION = '0.6.2';
+  // Instantiate a Lexer for our use here.
+  lexer = new Lexer();
+  // Compile a string of CoffeeScript code to JavaScript, using the Coffee/Jison
+  // compiler.
+  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);
+      }
+      throw err;
+    }
+  });
+  // Tokenize a string of CoffeeScript code, and return the array of tokens.
+  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(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(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;
@@ -21,37 +76,36 @@
       this.yytext = token[1];
       return token[0];
     },
-    setInput: function setInput(tokens) {
+    setInput: function(tokens) {
       this.tokens = tokens;
-      return this.pos = 0;
+      this.pos = 0;
+      return this.pos;
     },
-    upcomingInput: function upcomingInput() {
+    upcomingInput: function() {
       return "";
     },
-    showPosition: function showPosition() {
+    showPosition: function() {
       return this.pos;
     }
   };
-  exports.VERSION = '0.5.2';
-  // Compile CoffeeScript to JavaScript, using the Coffee/Jison compiler.
-  exports.compile = function compile(code, options) {
-    return (parser.parse(lexer.tokenize(code))).compile(options);
-  };
-  // Just the tokens.
-  exports.tokenize = function tokenize(code) {
-    return lexer.tokenize(code);
-  };
-  // Just the nodes.
-  exports.tree = function tree(code) {
-    return parser.parse(lexer.tokenize(code));
-  };
-  // Activate CoffeeScript in the browser by having it compile and eval
-  // all script tags with a content-type of text/coffeescript.
+  // 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) {
-    _a = document.getElementsByTagName('script');
-    for (_b = 0; _b < _a.length; _b++) {
-      tag = _a[_b];
-      tag.type === 'text/coffeescript' ? eval(exports.compile(tag.innerHTML)) : null;
+    process_scripts = function() {
+      var _a, _b, _c, _d, tag;
+      _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);
+    } else if (window.attachEvent) {
+      window.attachEvent('onload', process_scripts);
     }
   }
 })();

lib/command.js

@@ -0,0 +1,247 @@
+(function(){
+  var BANNER, CoffeeScript, SWITCHES, _a, compile_options, compile_script, compile_scripts, compile_stdio, exec, fs, lint, option_parser, options, optparse, parse_options, path, print_tokens, sources, spawn, usage, version, watch, 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.
+  fs = require('fs');
+  path = require('path');
+  optparse = require('./optparse');
+  CoffeeScript = require('./coffee-script');
+  _a = require('child_process');
+  spawn = _a.spawn;
+  exec = _a.exec;
+  // The help banner that is printed when `coffee` is called without arguments.
+  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() {
+    var flags, separator;
+    parse_options();
+    if (options.help) {
+      return usage();
+    }
+    if (options.version) {
+      return version();
+    }
+    if (options.interactive) {
+      return require('./repl');
+    }
+    if (options.stdio) {
+      return compile_stdio();
+    }
+    if (options.eval) {
+      return compile_script('console', sources[0]);
+    }
+    if (!(sources.length)) {
+      return usage();
+    }
+    separator = sources.indexOf('--');
+    flags = [];
+    if (separator >= 0) {
+      flags = sources.slice((separator + 1), sources.length);
+      sources = sources.slice(0, separator);
+    }
+    process.ARGV = (process.argv = flags);
+    return compile_scripts();
+  };
+  // Asynchronously read in each CoffeeScript in a list of source files and
+  // compile them. If a directory is passed, recursively compile all source
+  // files in it and all subdirectories.
+  compile_scripts = function() {
+    var _b, _c, _d, _e, base, compile, source;
+    _b = []; _d = sources;
+    for (_c = 0, _e = _d.length; _c < _e; _c++) {
+      source = _d[_c];
+      _b.push((function() {
+        base = source;
+        compile = function(source) {
+          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 (path.extname(source) === '.coffee') {
+                fs.readFile(source, function(err, code) {
+                  return compile_script(source, code.toString(), base);
+                });
+                if (options.watch) {
+                  return watch(source, base);
+                }
+              }
+            });
+          });
+        };
+        return compile(source);
+      })());
+    }
+    return _b;
+  };
+  // Compile a single source script, containing the given code, according to the
+  // requested options. If evaluating the script directly sets `__filename`,
+  // `__dirname` and `module.filename` to be correct relative to the script's path.
+  compile_script = function(source, code, base) {
+    var code_opts, js, o;
+    o = options;
+    code_opts = compile_options(source);
+    try {
+      if (o.tokens) {
+        return print_tokens(CoffeeScript.tokens(code));
+      } else if (o.nodes) {
+        return puts(CoffeeScript.nodes(code).toString());
+      } else if (o.run) {
+        return CoffeeScript.run(code, code_opts);
+      } else {
+        js = CoffeeScript.compile(code, code_opts);
+        if (o.print) {
+          return print(js);
+        } else if (o.compile) {
+          return write_js(source, js, base);
+        } else if (o.lint) {
+          return lint(js);
+        }
+      }
+    } catch (err) {
+      if (o.watch) {
+        return puts(err.message);
+      } else {
+        throw err;
+      }
+    }
+  };
+  // Attach the appropriate listeners to compile scripts incoming over **stdin**,
+  // and write them back to **stdout**.
+  compile_stdio = function() {
+    var code, stdin;
+    code = '';
+    stdin = process.openStdin();
+    stdin.addListener('data', function(buffer) {
+      if (buffer) {
+        return code += buffer.toString();
+      }
+    });
+    return stdin.addListener('end', function() {
+      return compile_script('stdio', code);
+    });
+  };
+  // 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 = function(source, base) {
+    return fs.watchFile(source, {
+      persistent: true,
+      interval: 500
+    }, function(curr, prev) {
+      if (curr.mtime.getTime() === prev.mtime.getTime()) {
+        return null;
+      }
+      if (options.compile) {
+        puts(("Compiled " + source));
+      }
+      return fs.readFile(source, function(err, code) {
+        return compile_script(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 = function(source, js, base) {
+    var base_dir, compile, dir, filename, js_path, src_dir;
+    filename = path.basename(source, path.extname(source)) + '.js';
+    src_dir = path.dirname(source);
+    base_dir = src_dir.substring(base.length);
+    dir = options.output ? path.join(options.output, base_dir) : src_dir;
+    js_path = path.join(dir, filename);
+    compile = function() {
+      return fs.writeFile(js_path, js);
+    };
+    return path.exists(dir, function(exists) {
+      if (exists) {
+        return compile();
+      } else {
+        return exec(("mkdir -p " + dir), compile);
+      }
+    });
+  };
+  // Pipe compiled JS through JSLint (requires a working `jsl` command), printing
+  // any errors or warnings that arise.
+  lint = function(js) {
+    var jsl, print_it;
+    print_it = function(buffer) {
+      return print(buffer.toString());
+    };
+    jsl = spawn('jsl', ['-nologo', '-stdin']);
+    jsl.stdout.addListener('data', print_it);
+    jsl.stderr.addListener('data', print_it);
+    jsl.stdin.write(js);
+    return jsl.stdin.end();
+  };
+  // Pretty-print a stream of tokens.
+  print_tokens = function(tokens) {
+    var _b, _c, _d, _e, _f, strings, tag, token, value;
+    strings = (function() {
+      _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 + "]";
+        })());
+      }
+      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() {
+    var o;
+    option_parser = new optparse.OptionParser(SWITCHES, BANNER);
+    o = (options = option_parser.parse(process.argv));
+    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);
+    return sources;
+  };
+  // The compile-time options to pass to the CoffeeScript compiler.
+  compile_options = function(source) {
+    var o;
+    o = {
+      source: source
+    };
+    o['no_wrap'] = options['no-wrap'];
+    return o;
+  };
+  // Print the `--help` usage message and exit.
+  usage = function() {
+    puts(option_parser.help());
+    return process.exit(0);
+  };
+  // Print the `--version` message and exit.
+  version = function() {
+    puts(("CoffeeScript version " + CoffeeScript.VERSION));
+    return process.exit(0);
+  };
+})();

lib/command_line.js

@@ -1,191 +0,0 @@
-(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;
-  fs = require('fs');
-  path = require('path');
-  optparse = require('optparse');
-  CoffeeScript = require('coffee-script');
-  BANNER = "coffee compiles CoffeeScript source files into JavaScript.\n\nUsage:\n  coffee path/to/script.coffee";
-  SWITCHES = [['-i', '--interactive', 'run an interactive CoffeeScript REPL'], ['-r', '--run', 'compile and run a CoffeeScript'], ['-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'], ['-n', '--no-wrap', 'compile without the top-level function wrapper'], ['-t', '--tokens', 'print the tokens that the lexer produces'], ['-tr', '--tree', 'print the parse tree that Jison produces'], ['-v', '--version', 'display CoffeeScript version'], ['-h', '--help', 'display this help message']];
-  options = {};
-  sources = [];
-  option_parser = null;
-  // The CommandLine handles all of the functionality of the `coffee` utility.
-  exports.run = function run() {
-    var flags, separator;
-    parse_options();
-    if (options.help) {
-      return usage();
-    }
-    if (options.version) {
-      return version();
-    }
-    if (options.interactive) {
-      return require('repl');
-    }
-    if (options.stdio) {
-      return compile_stdio();
-    }
-    if (options.eval) {
-      return compile_script('unknown', sources[0]);
-    }
-    if (!(sources.length)) {
-      return usage();
-    }
-    separator = sources.indexOf('--');
-    flags = [];
-    if (separator >= 0) {
-      flags = sources.slice((separator + 1), sources.length);
-      sources = sources.slice(0, separator);
-    }
-    process.ARGV = flags;
-    if (options.watch) {
-      watch_scripts();
-    }
-    compile_scripts();
-    return this;
-  };
-  // The "--help" usage message.
-  usage = function usage() {
-    puts('\n' + option_parser.help() + '\n');
-    return process.exit(0);
-  };
-  // The "--version" message.
-  version = function version() {
-    puts("CoffeeScript version " + CoffeeScript.VERSION);
-    return process.exit(0);
-  };
-  // Compiles the source CoffeeScript, returning the desired JavaScript, tokens,
-  // or JSLint results.
-  compile_scripts = function compile_scripts() {
-    var _a, _b, _c, compile, source;
-    compile = function compile(source) {
-      return fs.readFile(source, function(err, code) {
-        return compile_script(source, code);
-      });
-    };
-    _a = []; _b = sources;
-    for (_c = 0; _c < _b.length; _c++) {
-      source = _b[_c];
-      _a.push(compile(source));
-    }
-    return _a;
-  };
-  // Compile a single source script, containing the given code, according to the
-  // requested options. Both compile_scripts and watch_scripts share this method.
-  compile_script = function compile_script(source, code) {
-    var js, o;
-    o = options;
-    try {
-      if (o.tokens) {
-        return print_tokens(CoffeeScript.tokenize(code));
-      } else if (o.tree) {
-        return puts(CoffeeScript.tree(code).toString());
-      } else {
-        js = CoffeeScript.compile(code, compile_options());
-        if (o.run) {
-          return eval(js);
-        } else if (o.lint) {
-          return lint(js);
-        } else if (o.print || o.eval) {
-          return print(js);
-        } else {
-          return write_js(source, js);
-        }
-      }
-    } catch (err) {
-      if (o.watch) {
-        return puts(err.message);
-      } else {
-        throw err;
-      }
-    }
-  };
-  // Listen for and compile scripts over stdio.
-  compile_stdio = function compile_stdio() {
-    var code;
-    code = '';
-    process.stdio.open();
-    process.stdio.addListener('data', function(string) {
-      if (string) {
-        return code += string;
-      }
-    });
-    return process.stdio.addListener('close', function() {
-      return process.stdio.write(CoffeeScript.compile(code, compile_options()));
-    });
-  };
-  // Watch a list of source CoffeeScript files, recompiling them every time the
-  // files are updated.
-  watch_scripts = function watch_scripts() {
-    var _a, _b, _c, source, watch;
-    watch = function watch(source) {
-      return process.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 compile_script(source, code);
-        });
-      });
-    };
-    _a = []; _b = sources;
-    for (_c = 0; _c < _b.length; _c++) {
-      source = _b[_c];
-      _a.push(watch(source));
-    }
-    return _a;
-  };
-  // Write out a JavaScript source file with the compiled code.
-  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).
-  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, ''));
-      }
-    });
-    jsl.addListener('error', function(result) {
-      if (result) {
-        return puts(result);
-      }
-    });
-    jsl.write(js);
-    return jsl.close();
-  };
-  // Pretty-print a token stream.
-  print_tokens = function print_tokens(tokens) {
-    var _a, _b, _c, strings, token;
-    strings = (function() {
-      _a = []; _b = tokens;
-      for (_c = 0; _c < _b.length; _c++) {
-        token = _b[_c];
-        _a.push('[' + token[0] + ' ' + token[1].toString().replace(/\n/, '\\n') + ']');
-      }
-      return _a;
-    }).call(this);
-    return puts(strings.join(' '));
-  };
-  // Use OptionParser for all the options.
-  parse_options = function parse_options() {
-    option_parser = new optparse.OptionParser(SWITCHES, BANNER);
-    options = option_parser.parse(process.ARGV);
-    return sources = options.arguments.slice(2, options.arguments.length);
-  };
-  // The options to pass to the CoffeeScript compiler.
-  compile_options = function compile_options() {
-    return options['no-wrap'] ? {
-      no_wrap: true
-    } : {};
-  };
-})();

lib/helpers.js

@@ -0,0 +1,158 @@
+(function(){
+  var balanced_string, compact, count, del, extend, flatten, helpers, include, index_of, 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))) {
+    this.exports = this;
+  }
+  helpers = (exports.helpers = {});
+  // Cross-browser indexOf, so that IE can join the party.
+  helpers.index_of = (index_of = 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;
+  });
+  // Does a list include a value?
+  helpers.include = (include = function(list, value) {
+    return index_of(list, value) >= 0;
+  });
+  // Peek at the beginning of a given string to see if it matches a sequence.
+  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(array) {
+    var _a, _b, _c, _d, item;
+    _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(string, letter) {
+    var num, pos;
+    num = 0;
+    pos = index_of(string, letter);
+    while (pos !== -1) {
+      num += 1;
+      pos = index_of(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(options, overrides) {
+    var _a, _b, fresh, key, val;
+    fresh = {};
+    _a = options;
+    for (key in _a) { if (__hasProp.call(_a, key)) {
+      val = _a[key];
+      (fresh[key] = val);
+    }}
+    if (overrides) {
+      _b = overrides;
+      for (key in _b) { if (__hasProp.call(_b, key)) {
+        val = _b[key];
+        (fresh[key] = val);
+      }}
+    }
+    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(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));
+    }}
+    return _a;
+  });
+  // Return a completely flattened version of an array. Handy for getting a
+  // list of `children` from the nodes.
+  helpers.flatten = (flatten = function(array) {
+    var _a, _b, _c, item, memo;
+    memo = [];
+    _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(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(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 {
+        _b = delimited;
+        for (_a = 0, _c = _b.length; _a < _c; _a++) {
+          pair = _b[_a];
+          _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 +1,10 @@
+(function(){
+  var _a, key, val;
+  var __hasProp = Object.prototype.hasOwnProperty;
+  // Loader for CoffeeScript as a Node.js library.
+  _a = require('./coffee-script');
+  for (key in _a) { if (__hasProp.call(_a, key)) {
+    val = _a[key];
+    (exports[key] = val);
+  }}
+})();

lib/narwhal.js

@@ -1,44 +0,0 @@
-(function(){
-  var coffee, factories, file, loader, os, puts;
-  // The Narwhal-compatibility wrapper for CoffeeScript.
-  // Require external dependencies.
-  os = require('os');
-  file = require('file');
-  coffee = require('./coffee-script');
-  // Alias print to "puts", for Node.js compatibility:
-  puts = print;
-  // Compile a string of CoffeeScript into JavaScript.
-  exports.compile = function compile(source) {
-    return coffee.compile(source);
-  };
-  // Compile a given CoffeeScript file into JavaScript.
-  exports.compileFile = function compileFile(path) {
-    return coffee.compile(file.read(path));
-  };
-  // Make a factory for the CoffeeScript environment.
-  exports.makeNarwhalFactory = function makeNarwhalFactory(path) {
-    var code, factoryText;
-    code = exports.compileFile(path);
-    factoryText = "function(require,exports,module,system,print){" + code + "/**/\n}";
-    if (system.engine === "rhino") {
-      return Packages.org.mozilla.javascript.Context.getCurrentContext().compileFunction(global, factoryText, path, 0, null);
-    } else {
-      // eval requires parentheses, but parentheses break compileFunction.
-      return eval("(" + factoryText + ")");
-    }
-  };
-  // The Narwhal loader for '.coffee' files.
-  factories = {};
-  loader = {};
-  // Reload the coffee-script environment from source.
-  loader.reload = function reload(topId, path) {
-    return factories[topId] = function() {
-      return exports.makeNarwhalFactory(path);
-    };
-  };
-  // Ensure that the coffee-script environment is loaded.
-  loader.load = function load(topId, path) {
-    return factories[topId] = factories[topId] || this.reload(topId, path);
-  };
-  require.loader.loaders.unshift([".coffee", loader]);
-})();

lib/optparse.js

@@ -1,111 +1,132 @@
 (function(){
-  var LONG_FLAG, OPTIONAL, SHORT_FLAG, build_rule, build_rules, op, spaces;
-  // Create an OptionParser with a list of valid options.
-  op = (exports.OptionParser = function OptionParser(rules, banner) {
-    this.banner = banner || 'Usage: [Options]';
-    this.options_title = 'Available options:';
-    this.rules = build_rules(rules);
-    return this;
-  });
-  // Parse the argument array, calling defined callbacks, returning the remaining non-option arguments.
-  op.prototype.parse = function parse(args) {
-    var _a, _b, arg, is_option, options, rule;
-    arguments = Array.prototype.slice.call(arguments, 0);
-    options = {
-      arguments: []
+  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
+  exports.OptionParser = (function() {
+    OptionParser = function(rules, banner) {
+      this.banner = banner;
+      this.rules = build_rules(rules);
+      return this;
     };
-    args = args.concat([]);
-    while (((arg = args.shift()))) {
-      is_option = false;
-      _a = this.rules;
-      for (_b = 0; _b < _a.length; _b++) {
-        rule = _a[_b];
-        if (rule.letter === arg || rule.flag === arg) {
-          options[rule.name] = rule.argument ? args.shift() : true;
-          is_option = true;
-          break;
+    // 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(args) {
+      var _a, _b, _c, arg, is_option, matched_rule, 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;
+        _b = this.rules;
+        for (_a = 0, _c = _b.length; _a < _c; _a++) {
+          rule = _b[_a];
+          if (rule.short_flag === arg || rule.long_flag === arg) {
+            options[rule.name] = rule.has_argument ? args.shift() : true;
+            matched_rule = true;
+            break;
+          }
+        }
+        if (is_option && !matched_rule) {
+          throw new Error(("unrecognized option: " + arg));
+        }
+        if (!(is_option)) {
+          options.arguments.push(arg);
         }
       }
-      if (!(is_option)) {
-        options.arguments.push(arg);
+      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() {
+      var _a, _b, _c, _d, _e, _f, i, let_part, lines, rule, spaces;
+      lines = ['Available options:'];
+      if (this.banner) {
+        lines.unshift(("" + this.banner + "\n"));
       }
-    }
-    return options;
-  };
-  // Return the help text for this OptionParser, for --help and such.
-  op.prototype.help = function help() {
-    var _a, _b, _c, _d, has_shorts, lines, longest, rule, text;
-    longest = 0;
-    has_shorts = false;
-    lines = [this.banner, '', this.options_title];
-    _a = this.rules;
-    for (_b = 0; _b < _a.length; _b++) {
-      rule = _a[_b];
-      if (rule.letter) {
-        has_shorts = true;
+      _b = this.rules;
+      for (_a = 0, _c = _b.length; _a < _c; _a++) {
+        rule = _b[_a];
+        spaces = 15 - rule.long_flag.length;
+        spaces = spaces > 0 ? (function() {
+          _d = []; _e = 0; _f = spaces;
+          for (i = _e; (_e <= _f ? i <= _f : i >= _f); (_e <= _f ? i += 1 : i -= 1)) {
+            _d.push(' ');
+          }
+          return _d;
+        })().join('') : '';
+        let_part = rule.short_flag ? rule.short_flag + ', ' : '    ';
+        lines.push(("  " + let_part + rule.long_flag + spaces + rule.description));
       }
-      if (rule.flag.length > longest) {
-        longest = rule.flag.length;
-      }
-    }
-    _c = this.rules;
-    for (_d = 0; _d < _c.length; _d++) {
-      rule = _c[_d];
-      has_shorts ? (text = rule.letter ? spaces(2) + rule.letter + ', ' : spaces(6)) : null;
-      text += spaces(longest, rule.flag) + spaces(3);
-      text += rule.description;
-      lines.push(text);
-    }
-    return lines.join('\n');
-  };
-  // Private:
+      return "\n" + (lines.join('\n')) + "\n";
+    };
+    return OptionParser;
+  })();
+  // Helpers
+  // -------
   // Regex matchers for option flags.
-  LONG_FLAG = /^(--[\w\-]+)/;
-  SHORT_FLAG = /^(-\w+)/;
+  LONG_FLAG = /^(--\w[\w\-]+)/;
+  SHORT_FLAG = /^(-\w)/;
+  MULTI_FLAG = /^-(\w{2,})/;
   OPTIONAL = /\[(.+)\]/;
-  // Build rules from a list of valid switch tuples in the form:
-  // [letter-flag, long-flag, help], or [long-flag, help].
-  build_rules = function build_rules(rules) {
-    var _a, _b, _c, tuple;
-    _a = []; _b = rules;
-    for (_c = 0; _c < _b.length; _c++) {
-      tuple = _b[_c];
+  // 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(rules) {
+    var _a, _b, _c, _d, tuple;
+    _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 _a;
   };
-  // Build a rule from a short-letter-flag, long-form-flag, and help text.
-  build_rule = function build_rule(letter, flag, description) {
+  // Build a rule from a `-o` short flag, a `--output [DIR]` long flag, and the
+  // description of what the option does.
+  build_rule = function(short_flag, long_flag, description) {
     var match;
-    match = flag.match(OPTIONAL);
-    flag = flag.match(LONG_FLAG)[1];
+    match = long_flag.match(OPTIONAL);
+    long_flag = long_flag.match(LONG_FLAG)[1];
     return {
-      name: flag.substr(2),
-      letter: letter,
-      flag: flag,
+      name: long_flag.substr(2),
+      short_flag: short_flag,
+      long_flag: long_flag,
       description: description,
-      argument: !!(match && match[1])
+      has_argument: !!(match && match[1])
     };
   };
-  // Space-pad a string with the specified number of characters.
-  spaces = function spaces(num, text) {
-    var builder;
-    builder = [];
-    if (text) {
-      if (text.length >= num) {
-        return text;
+  // Normalize arguments by expanding merged flags into multiple flags. This allows
+  // you to have `-wl` be the same as `--watch --lint`.
+  normalize_arguments = function(args) {
+    var _a, _b, _c, _d, _e, _f, arg, l, match, result;
+    args = args.slice(0);
+    result = [];
+    _b = args;
+    for (_a = 0, _c = _b.length; _a < _c; _a++) {
+      arg = _b[_a];
+      if ((match = arg.match(MULTI_FLAG))) {
+        _e = match[1].split('');
+        for (_d = 0, _f = _e.length; _d < _f; _d++) {
+          l = _e[_d];
+          result.push('-' + l);
+        }
+      } else {
+        result.push(arg);
       }
-      num -= text.length;
-      builder.push(text);
     }
-    while (num -= 1) {
-      builder.push(' ');
-    }
-    return builder.join('');
+    return result;
   };
 })();

lib/repl.js

@@ -1,22 +1,31 @@
 (function(){
-  var coffee, prompt, quit, readline;
-  // A CoffeeScript port/version of the Node.js REPL.
-  // Required modules.
-  coffee = require('coffee-script');
-  // Shortcut variables.
+  var CoffeeScript, helpers, prompt, run, stdin;
+  // 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.
+  CoffeeScript = require('./coffee-script');
+  helpers = require('./helpers').helpers;
+  // Our prompt.
   prompt = 'coffee> ';
-  quit = function quit() {
-    return process.exit(0);
-  };
-  // The main REPL function. Called everytime a line of code is entered.
-  // Attempt to evaluate the command. If there's an exception, print it.
-  readline = function readline(code) {
+  // Quick alias for quitting the REPL.
+  helpers.extend(global, {
+    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(buffer) {
     var val;
     try {
-      val = eval(coffee.compile(code, {
+      val = CoffeeScript.run(buffer.toString(), {
         no_wrap: true,
-        globals: true
-      }));
+        globals: true,
+        source: 'repl'
+      });
       if (val !== undefined) {
         p(val);
       }
@@ -25,8 +34,8 @@
     }
     return print(prompt);
   };
-  // Start up the REPL.
-  process.stdio.addListener('data', readline);
-  process.stdio.open();
+  // Start up the REPL by opening **stdin** and listening for input.
+  stdin = process.openStdin();
+  stdin.addListener('data', run);
   print(prompt);
 })();

lib/rewriter.js

@@ -1,383 +1,394 @@
 (function(){
-  var BALANCED_PAIRS, EXPRESSION_CLOSE, EXPRESSION_START, EXPRESSION_TAIL, IMPLICIT_BLOCK, IMPLICIT_CALL, IMPLICIT_END, IMPLICIT_FUNC, INVERSES, SINGLE_CLOSERS, SINGLE_LINERS, _a, _b, _c, _d, _e, _f, _g, _h, pair, re;
-  var __hasProp = Object.prototype.hasOwnProperty;
-  if (!((typeof process !== "undefined" && process !== null))) {
+  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 __slice = Array.prototype.slice, __bind = function(func, obj, args) {
+    return function() {
+      return func.apply(obj || {}, args ? args.concat(__slice.call(arguments, 0)) : arguments);
+    };
+  }, __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)) {
+    _a = require('./helpers');
+    helpers = _a.helpers;
+  } else {
     this.exports = this;
+    helpers = this.helpers;
   }
-  // In order to keep the grammar simple, the stream of tokens that the Lexer
-  // emits is rewritten by the Rewriter, smoothing out ambiguities, mis-nested
-  // indentation, and single-line flavors of expressions.
-  exports.Rewriter = (re = function re() {  });
-  // Tokens that must be balanced.
+  // Import the helpers we need.
+  _b = helpers;
+  include = _b.include;
+  // The **Rewriter** class is used by the [Lexer](lexer.html), directly against
+  // its internal array of tokens.
+  exports.Rewriter = (function() {
+    Rewriter = function() {    };
+    // 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(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();
+      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(block) {
+      var i, move;
+      i = 0;
+      while (true) {
+        if (!(this.tokens[i])) {
+          break;
+        }
+        move = block(this.tokens[i - 1], this.tokens[i], this.tokens[i + 1], i);
+        i += move;
+      }
+      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() {
+      return this.scan_tokens(__bind(function(prev, token, post, i) {
+          var _c, after, before;
+          if (!(token[0] === 'COMMENT')) {
+            return 1;
+          }
+          _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);
+            before && before[0] === 'OUTDENT' && post && (prev[0] === post[0]) && (post[0] === 'TERMINATOR') ? 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]]);
+            return 2;
+          } else {
+            return 1;
+          }
+        }, this));
+    };
+    // Leading newlines would introduce an ambiguity in the grammar, so we
+    // dispatch them here.
+    Rewriter.prototype.remove_leading_newlines = function() {
+      var _c;
+      _c = [];
+      while (this.tokens[0] && this.tokens[0][0] === 'TERMINATOR') {
+        _c.push(this.tokens.shift());
+      }
+      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() {
+      return this.scan_tokens(__bind(function(prev, token, post, i) {
+          if (!(post && include(EXPRESSION_CLOSE, post[0]) && token[0] === 'TERMINATOR')) {
+            return 1;
+          }
+          this.tokens.splice(i, 1);
+          return 0;
+        }, 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() {
+      var brackets, parens;
+      parens = [0];
+      brackets = [0];
+      return this.scan_tokens(__bind(function(prev, token, post, i) {
+          var _c;
+          if ((_c = token[0]) === 'CALL_START') {
+            parens.push(0);
+          } else if (_c === 'INDEX_START') {
+            brackets.push(0);
+          } else if (_c === '(') {
+            parens[parens.length - 1] += 1;
+          } else if (_c === '[') {
+            brackets[brackets.length - 1] += 1;
+          } else if (_c === ')') {
+            if (parens[parens.length - 1] === 0) {
+              parens.pop();
+              token[0] = 'CALL_END';
+            } else {
+              parens[parens.length - 1] -= 1;
+            }
+          } else if (_c === ']') {
+            if (brackets[brackets.length - 1] === 0) {
+              brackets.pop();
+              token[0] = 'INDEX_END';
+            } else {
+              brackets[brackets.length - 1] -= 1;
+            }
+          }
+          return 1;
+        }, 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() {
+      var close_calls, stack;
+      stack = [0];
+      close_calls = __bind(function(i) {
+          var _c, _d, size, tmp;
+          _c = 0; _d = stack[stack.length - 1];
+          for (tmp = _c; (_c <= _d ? tmp < _d : tmp > _d); (_c <= _d ? tmp += 1 : 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;
+        }, this);
+      return this.scan_tokens(__bind(function(prev, token, post, i) {
+          var j, nx, open, size, tag;
+          tag = token[0];
+          if (tag === 'OUTDENT') {
+            stack[stack.length - 2] += stack.pop();
+          }
+          open = stack[stack.length - 1] > 0;
+          if (prev && prev.spaced && include(IMPLICIT_FUNC, prev[0]) && include(IMPLICIT_CALL, tag)) {
+            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 (include(EXPRESSION_START, tag)) {
+            if (tag === 'INDENT' && !token.generated && open && !(prev && include(IMPLICIT_BLOCK, prev[0]))) {
+              size = close_calls(i);
+              stack.push(0);
+              return size;
+            }
+            stack.push(0);
+            return 1;
+          }
+          if (open && !token.generated && (!post || include(IMPLICIT_END, tag))) {
+            j = 1;
+            while ((typeof (nx = this.tokens[i + j]) !== "undefined" && (nx = this.tokens[i + j]) !== 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 = close_calls(i);
+              if (tag !== 'OUTDENT' && include(EXPRESSION_END, tag)) {
+                stack.pop();
+              }
+              return size;
+            }
+          }
+          if (tag !== 'OUTDENT' && include(EXPRESSION_END, tag)) {
+            stack[stack.length - 2] += stack.pop();
+            return 1;
+          }
+          return 1;
+        }, 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() {
+      return this.scan_tokens(__bind(function(prev, token, post, i) {
+          var idx, indent, insertion, outdent, parens, pre, starter, tok;
+          if (!(include(SINGLE_LINERS, token[0]) && post[0] !== 'INDENT' && !(token[0] === 'ELSE' && post[0] === 'IF'))) {
+            return 1;
+          }
+          starter = token[0];
+          indent = ['INDENT', 2, token[2]];
+          indent.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')) {
+              insertion = pre[0] === "," ? idx - 1 : idx;
+              outdent = ['OUTDENT', 2, token[2]];
+              outdent.generated = true;
+              this.tokens.splice(insertion, 0, outdent);
+              break;
+            }
+            if (tok[0] === '(') {
+              parens += 1;
+            }
+            if (tok[0] === ')') {
+              parens -= 1;
+            }
+          }
+          if (!(token[0] === 'THEN')) {
+            return 1;
+          }
+          this.tokens.splice(i, 1);
+          return 0;
+        }, this));
+    };
+    // Ensure that all listed pairs of tokens are correctly balanced throughout
+    // the course of the token stream.
+    Rewriter.prototype.ensure_balance = function(pairs) {
+      var _c, _d, key, levels, line, open, open_line, unclosed, value;
+      levels = {};
+      open_line = {};
+      this.scan_tokens(__bind(function(prev, token, post, i) {
+          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];
+              }
+              levels[open] += 1;
+            }
+            if (token[0] === close) {
+              levels[open] -= 1;
+            }
+            if (levels[open] < 0) {
+              throw new Error(("too many " + (token[1]) + " on line " + (token[2] + 1)));
+            }
+          }
+          return 1;
+        }, this));
+      unclosed = (function() {
+        _c = []; _d = levels;
+        for (key in _d) { if (__hasProp.call(_d, key)) {
+          value = _d[key];
+          value > 0 ? _c.push(key) : null;
+        }}
+        return _c;
+      })();
+      if (unclosed.length) {
+        open = unclosed[0];
+        line = open_line[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 `EXPRESSION_START`, add it
+    //    to the stack. If you see an `EXPRESSION_END`, pop the stack and replace
+    //    it with the inverse of what we've just popped.
+    // 3. Keep track of "debt" for tokens that we manufacture, to make sure we end
+    //    up balanced in the end.
+    // 4. Be careful not to alter array or parentheses delimiters with overzealous
+    //    rewriting.
+    Rewriter.prototype.rewrite_closing_parens = function() {
+      var _c, debt, key, stack, val;
+      stack = [];
+      debt = {};
+      _c = INVERSES;
+      for (key in _c) { if (__hasProp.call(_c, key)) {
+        val = _c[key];
+        (debt[key] = 0);
+      }}
+      return this.scan_tokens(__bind(function(prev, token, post, i) {
+          var inv, match, mtag, oppos, tag;
+          tag = token[0];
+          inv = INVERSES[token[0]];
+          if (include(EXPRESSION_START, tag)) {
+            stack.push(token);
+            return 1;
+          } else if (include(EXPRESSION_END, tag)) {
+            if (debt[inv] > 0) {
+              debt[inv] -= 1;
+              this.tokens.splice(i, 1);
+              return 0;
+            } else {
+              match = stack.pop();
+              mtag = match[0];
+              oppos = INVERSES[mtag];
+              if (tag === oppos) {
+                return 1;
+              }
+              debt[mtag] += 1;
+              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 {
+            return 1;
+          }
+        }, this));
+    };
+    return Rewriter;
+  })();
+  // 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']];
-  // Tokens that signal the start of a balanced pair.
-  EXPRESSION_START = (function() {
-    _a = []; _b = BALANCED_PAIRS;
-    for (_c = 0; _c < _b.length; _c++) {
-      pair = _b[_c];
-      _a.push(pair[0]);
-    }
-    return _a;
-  }).call(this);
-  // Tokens that signal the end of a balanced pair.
-  EXPRESSION_TAIL = (function() {
-    _d = []; _e = BALANCED_PAIRS;
-    for (_f = 0; _f < _e.length; _f++) {
-      pair = _e[_f];
-      _d.push(pair[1]);
-    }
-    return _d;
-  }).call(this);
-  // Tokens that indicate the close of a clause of an expression.
-  EXPRESSION_CLOSE = ['CATCH', 'WHEN', 'ELSE', 'FINALLY'].concat(EXPRESSION_TAIL);
-  // Tokens pairs that, in immediate succession, indicate an implicit call.
-  IMPLICIT_FUNC = ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END'];
-  IMPLICIT_BLOCK = ['->', '=>', '{', '[', ','];
-  IMPLICIT_END = ['IF', 'UNLESS', 'FOR', 'WHILE', 'TERMINATOR', 'INDENT', 'OUTDENT'];
-  IMPLICIT_CALL = ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'TRY', 'DELETE', 'TYPEOF', 'SWITCH', 'TRUE', 'FALSE', 'YES', 'NO', 'ON', 'OFF', '!', '!!', 'NOT', '@', '->', '=>', '[', '(', '{'];
-  // The inverse mappings of token pairs we're trying to fix up.
+  // The inverse mappings of `BALANCED_PAIRS` we're trying to fix up, so we can
+  // look things up from either end.
   INVERSES = {};
-  _g = BALANCED_PAIRS;
-  for (_h = 0; _h < _g.length; _h++) {
-    pair = _g[_h];
+  _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() {
+    _f = []; _h = BALANCED_PAIRS;
+    for (_g = 0, _i = _h.length; _g < _i; _g++) {
+      pair = _h[_g];
+      _f.push(pair[0]);
+    }
+    return _f;
+  })();
+  // The tokens that signal the end of a balanced pair.
+  EXPRESSION_END = (function() {
+    _j = []; _l = BALANCED_PAIRS;
+    for (_k = 0, _m = _l.length; _k < _m; _k++) {
+      pair = _l[_k];
+      _j.push(pair[1]);
+    }
+    return _j;
+  })();
+  // Tokens that indicate the close of a clause of an expression.
+  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', 'THIS', 'NULL', '@', '->', '=>', '[', '(', '{'];
+  // Tokens indicating that the implicit call must enclose a block of expressions.
+  IMPLICIT_BLOCK = ['->', '=>', '{', '[', ','];
+  // Tokens that always mark the end of an implicit call for single-liners.
+  IMPLICIT_END = ['IF', 'UNLESS', 'FOR', 'WHILE', 'UNTIL', 'TERMINATOR', 'INDENT'].concat(EXPRESSION_END);
   // Single-line flavors of block expressions that have unclosed endings.
   // The grammar can't disambiguate them, so we insert the implicit indentation.
   SINGLE_LINERS = ['ELSE', "->", "=>", 'TRY', 'FINALLY', 'THEN'];
-  SINGLE_CLOSERS = ['TERMINATOR', 'CATCH', 'FINALLY', 'ELSE', 'OUTDENT', 'LEADING_WHEN', 'PARAM_START'];
-  // 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 like this.
-  re.prototype.rewrite = function rewrite(tokens) {
-    this.tokens = tokens;
-    this.adjust_comments();
-    this.remove_leading_newlines();
-    this.remove_mid_expression_newlines();
-    this.move_commas_outside_outdents();
-    this.close_open_calls_and_indexes();
-    this.add_implicit_indentation();
-    this.add_implicit_parentheses();
-    this.ensure_balance(BALANCED_PAIRS);
-    this.rewrite_closing_parens();
-    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 the stream changes length under our feet.
-  re.prototype.scan_tokens = function scan_tokens(block) {
-    var i, move;
-    i = 0;
-    while (true) {
-      if (!(this.tokens[i])) {
-        break;
-      }
-      move = block(this.tokens[i - 1], this.tokens[i], this.tokens[i + 1], i);
-      i += move;
-    }
-    return true;
-  };
-  // Massage newlines and indentations so that comments don't have to be
-  // correctly indented, or appear on their own line.
-  re.prototype.adjust_comments = function adjust_comments() {
-    return this.scan_tokens((function(__this) {
-      var __func = function(prev, token, post, i) {
-        var after, before;
-        if (!(token[0] === 'COMMENT')) {
-          return 1;
-        }
-        before = this.tokens[i - 2];
-        after = this.tokens[i + 2];
-        if (before && after && ((before[0] === 'INDENT' && after[0] === 'OUTDENT') || (before[0] === 'OUTDENT' && after[0] === 'INDENT')) && before[1] === after[1]) {
-          this.tokens.splice(i + 2, 1);
-          this.tokens.splice(i - 2, 1);
-          return 0;
-        } else if (prev && prev[0] === 'TERMINATOR' && after && after[0] === 'INDENT') {
-          this.tokens.splice(i + 2, 1);
-          this.tokens[i - 1] = after;
-          return 1;
-        } else if (prev && prev[0] !== 'TERMINATOR' && prev[0] !== 'INDENT' && prev[0] !== 'OUTDENT') {
-          this.tokens.splice(i, 0, ['TERMINATOR', "\n", prev[2]]);
-          return 2;
-        } else {
-          return 1;
-        }
-      };
-      return (function() {
-        return __func.apply(__this, arguments);
-      });
-    })(this));
-  };
-  // Leading newlines would introduce an ambiguity in the grammar, so we
-  // dispatch them here.
-  re.prototype.remove_leading_newlines = function remove_leading_newlines() {
-    if (this.tokens[0][0] === 'TERMINATOR') {
-      return this.tokens.shift();
-    }
-  };
-  // Some blocks occur in the middle of expressions -- when we're expecting
-  // this, remove their trailing newlines.
-  re.prototype.remove_mid_expression_newlines = function remove_mid_expression_newlines() {
-    return this.scan_tokens((function(__this) {
-      var __func = function(prev, token, post, i) {
-        if (!(post && EXPRESSION_CLOSE.indexOf(post[0]) >= 0 && token[0] === 'TERMINATOR')) {
-          return 1;
-        }
-        this.tokens.splice(i, 1);
-        return 0;
-      };
-      return (function() {
-        return __func.apply(__this, arguments);
-      });
-    })(this));
-  };
-  // Make sure that we don't accidentally break trailing commas, which need
-  // to go on the outside of expression closers.
-  re.prototype.move_commas_outside_outdents = function move_commas_outside_outdents() {
-    return this.scan_tokens((function(__this) {
-      var __func = function(prev, token, post, i) {
-        if (token[0] === 'OUTDENT' && prev[0] === ',') {
-          this.tokens.splice(i, 1, token);
-        }
-        return 1;
-      };
-      return (function() {
-        return __func.apply(__this, arguments);
-      });
-    })(this));
-  };
-  // We've tagged the opening parenthesis of a method call, and the opening
-  // bracket of an indexing operation. Match them with their close.
-  re.prototype.close_open_calls_and_indexes = function close_open_calls_and_indexes() {
-    var brackets, parens;
-    parens = [0];
-    brackets = [0];
-    return this.scan_tokens((function(__this) {
-      var __func = function(prev, token, post, i) {
-        var _i;
-        if ((_i = token[0]) === 'CALL_START') {
-          parens.push(0);
-        } else if (_i === 'INDEX_START') {
-          brackets.push(0);
-        } else if (_i === '(') {
-          parens[parens.length - 1] += 1;
-        } else if (_i === '[') {
-          brackets[brackets.length - 1] += 1;
-        } else if (_i === ')') {
-          if (parens[parens.length - 1] === 0) {
-            parens.pop();
-            token[0] = 'CALL_END';
-          } else {
-            parens[parens.length - 1] -= 1;
-          }
-        } else if (_i === ']') {
-          if (brackets[brackets.length - 1] === 0) {
-            brackets.pop();
-            token[0] = 'INDEX_END';
-          } else {
-            brackets[brackets.length - 1] -= 1;
-          }
-        }
-        return 1;
-      };
-      return (function() {
-        return __func.apply(__this, arguments);
-      });
-    })(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.
-  re.prototype.add_implicit_parentheses = function add_implicit_parentheses() {
-    var stack;
-    stack = [0];
-    return this.scan_tokens((function(__this) {
-      var __func = function(prev, token, post, i) {
-        var _i, _j, _k, _l, idx, last, size, stack_pointer, tag, tmp;
-        tag = token[0];
-        if (tag === 'INDENT') {
-          stack.push(0);
-        }
-        if (tag === 'OUTDENT') {
-          last = stack.pop();
-          stack[stack.length - 1] += last;
-        }
-        if (IMPLICIT_END.indexOf(tag) >= 0 || !(typeof post !== "undefined" && post !== null)) {
-          if (tag === 'INDENT' && prev && IMPLICIT_BLOCK.indexOf(prev[0]) >= 0) {
-            return 1;
-          }
-          if (stack[stack.length - 1] > 0 || tag === 'INDENT') {
-            idx = tag === 'OUTDENT' ? i + 1 : i;
-            stack_pointer = tag === 'INDENT' ? 2 : 1;
-            _k = 0; _l = stack[stack.length - stack_pointer];
-            for (_j = 0, tmp=_k; (_k <= _l ? tmp < _l : tmp > _l); (_k <= _l ? tmp += 1 : tmp -= 1), _j++) {
-              this.tokens.splice(idx, 0, ['CALL_END', ')', token[2]]);
-            }
-            size = stack[stack.length - stack_pointer] + 1;
-            stack[stack.length - stack_pointer] = 0;
-            return size;
-          }
-        }
-        if (!(prev && IMPLICIT_FUNC.indexOf(prev[0]) >= 0 && IMPLICIT_CALL.indexOf(tag) >= 0)) {
-          return 1;
-        }
-        this.tokens.splice(i, 0, ['CALL_START', '(', token[2]]);
-        stack[stack.length - 1] += 1;
-        return 2;
-      };
-      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. Use the lexer to add the implicit
-  // blocks, so it doesn't need to.
-  // ')' can close a single-line block, but we need to make sure it's balanced.
-  re.prototype.add_implicit_indentation = function add_implicit_indentation() {
-    return this.scan_tokens((function(__this) {
-      var __func = function(prev, token, post, i) {
-        var idx, insertion, parens, starter, tok;
-        if (!(SINGLE_LINERS.indexOf(token[0]) >= 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]]);
-        idx = i + 1;
-        parens = 0;
-        while (true) {
-          idx += 1;
-          tok = this.tokens[idx];
-          if ((!tok || (SINGLE_CLOSERS.indexOf(tok[0]) >= 0 && tok[1] !== ';') || (tok[0] === ')' && parens === 0)) && !(starter === 'ELSE' && tok[0] === 'ELSE')) {
-            insertion = this.tokens[idx - 1][0] === "," ? idx - 1 : idx;
-            this.tokens.splice(insertion, 0, ['OUTDENT', 2, token[2]]);
-            break;
-          }
-          if (tok[0] === '(') {
-            parens += 1;
-          }
-          if (tok[0] === ')') {
-            parens -= 1;
-          }
-        }
-        if (!(token[0] === 'THEN')) {
-          return 1;
-        }
-        this.tokens.splice(i, 1);
-        return 0;
-      };
-      return (function() {
-        return __func.apply(__this, arguments);
-      });
-    })(this));
-  };
-  // Ensure that all listed pairs of tokens are correctly balanced throughout
-  // the course of the token stream.
-  re.prototype.ensure_balance = function ensure_balance(pairs) {
-    var _i, _j, key, levels, unclosed, value;
-    levels = {};
-    this.scan_tokens((function(__this) {
-      var __func = function(prev, token, post, i) {
-        var _i, _j, _k, close, open;
-        _i = pairs;
-        for (_j = 0; _j < _i.length; _j++) {
-          pair = _i[_j];
-          _k = pair;
-          open = _k[0];
-          close = _k[1];
-          levels[open] = levels[open] || 0;
-          if (token[0] === open) {
-            levels[open] += 1;
-          }
-          if (token[0] === close) {
-            levels[open] -= 1;
-          }
-          if (levels[open] < 0) {
-            throw new Error("too many " + token[1]);
-          }
-        }
-        return 1;
-      };
-      return (function() {
-        return __func.apply(__this, arguments);
-      });
-    })(this));
-    unclosed = (function() {
-      _i = []; _j = levels;
-      for (key in _j) { if (__hasProp.call(_j, key)) {
-        value = _j[key];
-        if (value > 0) {
-          _i.push(key);
-        }
-      }}
-      return _i;
-    }).call(this);
-    if (unclosed.length) {
-      throw new Error("unclosed " + unclosed[0]);
-    }
-  };
-  // 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.
-  //
-  re.prototype.rewrite_closing_parens = function rewrite_closing_parens() {
-    var _i, debt, key, stack, val;
-    stack = [];
-    debt = {};
-    _i = INVERSES;
-    for (key in _i) { if (__hasProp.call(_i, key)) {
-      val = _i[key];
-      ((debt[key] = 0));
-    }}
-    return this.scan_tokens((function(__this) {
-      var __func = function(prev, token, post, i) {
-        var inv, match, mtag, tag;
-        tag = token[0];
-        inv = INVERSES[token[0]];
-        // Push openers onto the stack.
-        if (EXPRESSION_START.indexOf(tag) >= 0) {
-          stack.push(token);
-          return 1;
-          // The end of an expression, check stack and debt for a pair.
-        } else if (EXPRESSION_TAIL.indexOf(tag) >= 0) {
-          // If the tag is already in our debt, swallow it.
-          if (debt[inv] > 0) {
-            debt[inv] -= 1;
-            this.tokens.splice(i, 1);
-            return 0;
-          } else {
-            // Pop the stack of open delimiters.
-            match = stack.pop();
-            mtag = match[0];
-            // Continue onwards if it's the expected tag.
-            if (tag === INVERSES[mtag]) {
-              return 1;
-            } else {
-              // Unexpected close, insert correct close, adding to the debt.
-              debt[mtag] += 1;
-              val = mtag === 'INDENT' ? match[1] : INVERSES[mtag];
-              this.tokens.splice(i, 0, [INVERSES[mtag], val]);
-              return 1;
-            }
-          }
-        } else {
-          return 1;
-        }
-      };
-      return (function() {
-        return __func.apply(__this, arguments);
-      });
-    })(this));
-  };
+  SINGLE_CLOSERS = ['TERMINATOR', 'CATCH', 'FINALLY', 'ELSE', 'OUTDENT', 'LEADING_WHEN'];
 })();

lib/scope.js

@@ -1,114 +1,137 @@
 (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))) {
     this.exports = this;
   }
-  // Scope objects form a tree corresponding to the shape of the function
-  // definitions present in the script. They provide lexical scope, to determine
-  // whether a variable has been seen before or if it needs to be declared.
-  //
-  // Initialize a scope with its parent, for lookups up the chain,
-  // as well as the Expressions body where it should declare its variables,
-  // and the function that it wraps.
-  Scope = (exports.Scope = function Scope(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';
-    return this;
-  });
-  // Look up a variable in lexical scope, or declare it if not found.
-  Scope.prototype.find = function find(name) {
-    if (this.check(name)) {
-      return true;
-    }
-    this.variables[name] = 'var';
-    return false;
-  };
-  // Define a local variable as originating from a parameter in current scope
-  // -- no var required.
-  Scope.prototype.parameter = function parameter(name) {
-    return this.variables[name] = 'param';
-  };
-  // Just check to see if a variable has already been declared.
-  Scope.prototype.check = function check(name) {
-    if (this.variables[name]) {
-      return true;
-    }
-    return !!(this.parent && this.parent.check(name));
-  };
-  // You can reset a found variable on the immediate scope.
-  Scope.prototype.reset = function reset(name) {
-    return delete this.variables[name];
-  };
-  // Find an available, short, name for a compiler-generated variable.
-  Scope.prototype.free_variable = function free_variable() {
-    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');
-    }
-    this.variables[this.temp_var] = 'var';
-    return this.temp_var;
-  };
-  // Ensure that an assignment is made at the top of scope (or 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);
-    }
-    return this.variables[name] = {
-      value: value,
-      assigned: true
+  exports.Scope = (function() {
+    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 = {};
+      if (this.parent) {
+        this.temp_var = this.parent.temp_var;
+      } else {
+        Scope.root = this;
+        this.temp_var = '_a';
+      }
+      return this;
     };
-  };
-  // 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;
-  };
-  // 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;
-  };
-  // Return the list of variables first declared in current scope.
-  Scope.prototype.declared_variables = function declared_variables() {
-    var _a, _b, key, val;
-    return (function() {
+    // The top-level **Scope** object.
+    Scope.root = null;
+    // 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(name) {
+      if (this.check(name)) {
+        return true;
+      }
+      this.variables[name] = 'var';
+      return false;
+    };
+    // Test variables and return true the first time fn(v, k) returns true
+    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;
+    };
+    // Reserve a variable name as originating from a function parameter for this
+    // scope. No `var` required for internal references.
+    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(name) {
+      if (this.variables[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() {
+      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');
+      }
+      this.variables[this.temp_var] = 'var';
+      return this.temp_var;
+    };
+    // Ensure that an assignment is made at the top of this scope
+    // (or at the top-level scope, if requested).
+    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(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(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() {
+      var _a, _b, key, val;
+      return (function() {
+        _a = []; _b = this.variables;
+        for (key in _b) { if (__hasProp.call(_b, key)) {
+          val = _b[key];
+          val === 'var' ? _a.push(key) : null;
+        }}
+        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() {
+      var _a, _b, key, val;
       _a = []; _b = this.variables;
       for (key in _b) { if (__hasProp.call(_b, key)) {
         val = _b[key];
-        if (val === 'var') {
-          _a.push(key);
-        }
+        val.assigned ? _a.push(("" + key + " = " + val.value)) : null;
       }}
       return _a;
-    }).call(this).sort();
-  };
-  // Return the list of variables that are supposed to be assigned at the top
-  // of scope.
-  Scope.prototype.assigned_variables = function assigned_variables() {
-    var _a, _b, key, val;
-    _a = []; _b = this.variables;
-    for (key in _b) { if (__hasProp.call(_b, key)) {
-      val = _b[key];
-      if (val.assigned) {
-        _a.push(key + ' = ' + val.value);
-      }
-    }}
-    return _a;
-  };
-  // Compile the string representing all of the declared variables for this scope.
-  Scope.prototype.compiled_declarations = function compiled_declarations() {
-    return this.declared_variables().join(', ');
-  };
-  // Compile the string performing all of the variable assignments for this scope.
-  Scope.prototype.compiled_assignments = function compiled_assignments() {
-    return this.assigned_variables().join(', ');
-  };
+    };
+    // Compile the JavaScript for all of the variable declarations in this scope.
+    Scope.prototype.compiled_declarations = function() {
+      return this.declared_variables().join(', ');
+    };
+    // Compile the JavaScript for all of the variable assignments in this scope.
+    Scope.prototype.compiled_assignments = function() {
+      return this.assigned_variables().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 +3,5 @@
     "description":  "Unfancy JavaScript",
     "keywords":     ["javascript", "language"],
     "author":       "Jeremy Ashkenas",
-    "version":      "0.5.2"
+    "version":      "0.6.2"
 }

src/cake.coffee

@@ -1,45 +1,70 @@
-# `cake` is a simplified version of Make (Rake, Jake) for CoffeeScript.
+# `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.
 
-fs:       require 'fs'
-path:     require 'path'
-coffee:   require 'coffee-script'
+# 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
 
-no_such_task: (task) ->
-  process.stdio.writeError('No such task: "' + task + '"\n')
-  process.exit(1)
+# Mixin the top-level Cake functions for Cakefiles to use directly.
+helpers.extend global, {
 
-# Mixin the Cake functionality.
-process.mixin {
-
-  # Define a task with a name, a description, and the action itself.
+  # 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) ->
+    [action, description]: [description, action] unless action
     tasks[name]: {name: name, description: description, action: action}
 
-  # Invoke another task in the Cakefile.
+  # 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: (letter, flag, description) ->
+    switches.push [letter, flag, description]
+
+  # Invoke another task in the current Cakefile.
   invoke: (name) ->
     no_such_task name unless tasks[name]
-    tasks[name].action()
+    tasks[name].action options
+
 }
 
-# Display the list of Cake tasks.
+# 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: ->
+  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').toString(), {source: 'Cakefile'}
+    oparse: new optparse.OptionParser switches
+    return print_tasks() 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: ->
+  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
-
-# Running `cake` runs the tasks you pass asynchronously (node-style), or
-# prints them out, with no arguments.
-exports.run: ->
-  path.exists 'Cakefile', (exists) ->
-    throw new Error('Cakefile not found in ' + process.cwd()) unless exists
-    args: process.ARGV[2...process.ARGV.length]
-    fs.readFile 'Cakefile', (err, source) ->
-      eval coffee.compile source
-      return print_tasks() unless args.length
-      for arg in args
-        no_such_task arg unless tasks[arg]
-        tasks[arg].action()
+    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) ->
+  puts "No such task: \"$task\""
+  process.exit 1

src/coffee-script.coffee

@@ -1,19 +1,74 @@
-# Set up for both the browser and the server.
-if process?
-  process.mixin require 'nodes'
-  path:         require 'path'
-  lexer:   new (require('lexer').Lexer)()
-  parser:       require('parser').parser
-else
-  lexer: new Lexer()
-  parser: exports.parser
-  this.exports: this.CoffeeScript: {}
+# 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.
 
-# Thin wrapper for Jison compatibility around the real lexer.
+# Set up dependencies correctly for both the server and the browser.
+if process?
+  path:         require 'path'
+  Lexer:        require('./lexer').Lexer
+  parser:       require('./parser').parser
+  helpers:      require('./helpers').helpers
+  helpers.extend global, require './nodes'
+  if require.registerExtension
+    require.registerExtension '.coffee', (content) -> compile content
+else
+  this.exports: this.CoffeeScript: {}
+  Lexer:        this.Lexer
+  parser:       this.parser
+  helpers:      this.helpers
+
+# The current CoffeeScript version number.
+exports.VERSION: '0.6.2'
+
+# Instantiate a Lexer for our use here.
+lexer: new Lexer()
+
+# Compile a string of CoffeeScript code to JavaScript, using the Coffee/Jison
+# compiler.
+exports.compile: compile: (code, options) ->
+  options: or {}
+  try
+    (parser.parse lexer.tokenize code).compile options
+  catch err
+    err.message: "In $options.source, $err.message" if options.source
+    throw err
+
+# Tokenize a string of CoffeeScript code, and return the array of tokens.
+exports.tokens: (code) ->
+  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: (code) ->
+  parser.parse lexer.tokenize code
+
+# Compile and execute a string of CoffeeScript (on the server), correctly
+# setting `__filename`, `__dirname`, and relative `require()`.
+exports.run: ((code, options) ->
+  module.filename: __filename: options.source
+  __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".
 parser.lexer: {
   lex: ->
     token: @tokens[@pos] or [""]
-    @pos += 1
+    @pos: + 1
     this.yylineno: token[2]
     this.yytext:   token[1]
     token[0]
@@ -24,22 +79,15 @@ parser.lexer: {
   showPosition: -> @pos
 }
 
-exports.VERSION: '0.5.2'
-
-# Compile CoffeeScript to JavaScript, using the Coffee/Jison compiler.
-exports.compile: (code, options) ->
-  (parser.parse lexer.tokenize code).compile(options)
-
-# Just the tokens.
-exports.tokenize: (code) ->
-  lexer.tokenize code
-
-# Just the nodes.
-exports.tree: (code) ->
-  parser.parse lexer.tokenize code
-
-# Activate CoffeeScript in the browser by having it compile and eval
-# all script tags with a content-type of text/coffeescript.
+# 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 document? and document.getElementsByTagName
-  for tag in document.getElementsByTagName('script') when tag.type is 'text/coffeescript'
-    eval exports.compile tag.innerHTML
+  process_scripts: ->
+    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
+  else if window.attachEvent
+    window.attachEvent 'onload', process_scripts

src/command.coffee

@@ -0,0 +1,172 @@
+# 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.
+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: '''
+  coffee compiles CoffeeScript source files into JavaScript.
+
+  Usage:
+    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: ->
+  parse_options()
+  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
+  separator: sources.indexOf '--'
+  flags: []
+  if separator >= 0
+    flags: sources[(separator + 1)...sources.length]
+    sources: sources[0...separator]
+  process.ARGV: process.argv: flags
+  compile_scripts()
+
+# Asynchronously read in each CoffeeScript in a list of source files and
+# compile them. If a directory is passed, recursively compile all source
+# files in it and all subdirectories.
+compile_scripts: ->
+  for source in sources
+    base: source
+    compile: (source) ->
+      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 path.extname(source) is '.coffee'
+            fs.readFile source, (err, code) -> compile_script(source, code.toString(), base)
+            watch source, base if options.watch
+    compile source
+
+# Compile a single source script, containing the given code, according to the
+# requested options. If evaluating the script directly sets `__filename`,
+# `__dirname` and `module.filename` to be correct relative to the script's path.
+compile_script: (source, code, base) ->
+  o: options
+  code_opts: compile_options source
+  try
+    if      o.tokens      then print_tokens CoffeeScript.tokens code
+    else if o.nodes       then puts CoffeeScript.nodes(code).toString()
+    else if o.run         then CoffeeScript.run code, code_opts
+    else
+      js: CoffeeScript.compile code, code_opts
+      if o.print          then print js
+      else if o.compile   then write_js source, js, base
+      else if o.lint      then lint js
+  catch err
+    if o.watch            then puts err.message else throw err
+
+# Attach the appropriate listeners to compile scripts incoming over **stdin**,
+# and write them back to **stdout**.
+compile_stdio: ->
+  code: ''
+  stdin: process.openStdin()
+  stdin.addListener 'data', (buffer) ->
+    code: + buffer.toString() if buffer
+  stdin.addListener 'end', ->
+    compile_script 'stdio', code
+
+# 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()
+    puts "Compiled $source" if options.compile
+    fs.readFile source, (err, code) -> compile_script(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, base) ->
+  filename: path.basename(source, path.extname(source)) + '.js'
+  src_dir:  path.dirname source
+  base_dir: src_dir.substring base.length
+  dir:      if options.output then path.join options.output, base_dir else src_dir
+  js_path:  path.join dir, filename
+  compile:  -> fs.writeFile js_path, js
+  path.exists dir, (exists) ->
+    if exists then compile() else exec "mkdir -p $dir", compile
+
+# Pipe compiled JS through JSLint (requires a working `jsl` command), printing
+# any errors or warnings that arise.
+lint: (js) ->
+  print_it: (buffer) -> print buffer.toString()
+  jsl: spawn 'jsl', ['-nologo', '-stdin']
+  jsl.stdout.addListener 'data', print_it
+  jsl.stderr.addListener 'data', print_it
+  jsl.stdin.write js
+  jsl.stdin.end()
+
+# Pretty-print a stream of tokens.
+print_tokens: (tokens) ->
+  strings: for token in tokens
+    [tag, value]: [token[0], token[1].toString().replace(/\n/, '\\n')]
+    "[$tag $value]"
+  puts strings.join(' ')
+
+# 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)
+  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]
+
+# The compile-time options to pass to the CoffeeScript compiler.
+compile_options: (source) ->
+  o: {source: source}
+  o['no_wrap']: options['no-wrap']
+  o
+
+# Print the `--help` usage message and exit.
+usage: ->
+  puts option_parser.help()
+  process.exit 0
+
+# Print the `--version` message and exit.
+version: ->
+  puts "CoffeeScript version $CoffeeScript.VERSION"
+  process.exit 0

src/command_line.coffee

@@ -1,134 +0,0 @@
-fs:           require 'fs'
-path:         require 'path'
-optparse:     require 'optparse'
-CoffeeScript: require 'coffee-script'
-
-BANNER: '''
-  coffee compiles CoffeeScript source files into JavaScript.
-
-  Usage:
-    coffee path/to/script.coffee
-        '''
-
-SWITCHES: [
-  ['-i', '--interactive',   'run an interactive CoffeeScript REPL']
-  ['-r', '--run',           'compile and run a CoffeeScript']
-  ['-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']
-  ['-n', '--no-wrap',       'compile without the top-level function wrapper']
-  ['-t', '--tokens',        'print the tokens that the lexer produces']
-  ['-tr','--tree',          'print the parse tree that Jison produces']
-  ['-v', '--version',       'display CoffeeScript version']
-  ['-h', '--help',          'display this help message']
-]
-
-options: {}
-sources: []
-option_parser: null
-
-# The CommandLine handles all of the functionality of the `coffee` utility.
-exports.run: ->
-  parse_options()
-  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 'unknown', sources[0] if options.eval
-  return usage()                              unless sources.length
-  separator: sources.indexOf '--'
-  flags: []
-  if separator >= 0
-    flags: sources[(separator + 1)...sources.length]
-    sources: sources[0...separator]
-  process.ARGV = flags
-  watch_scripts() if options.watch
-  compile_scripts()
-  this
-
-# The "--help" usage message.
-usage: ->
-  puts '\n' + option_parser.help() + '\n'
-  process.exit 0
-
-# The "--version" message.
-version: ->
-  puts "CoffeeScript version " + CoffeeScript.VERSION
-  process.exit 0
-
-# Compiles the source CoffeeScript, returning the desired JavaScript, tokens,
-# or JSLint results.
-compile_scripts: ->
-  compile: (source) ->
-    fs.readFile source, (err, code) -> compile_script(source, code)
-  compile(source) for source in sources
-
-# Compile a single source script, containing the given code, according to the
-# requested options. Both compile_scripts and watch_scripts share this method.
-compile_script: (source, code) ->
-  o: options
-  try
-    if      o.tokens            then print_tokens CoffeeScript.tokenize code
-    else if o.tree              then puts CoffeeScript.tree(code).toString()
-    else
-      js: CoffeeScript.compile code, compile_options()
-      if      o.run             then eval js
-      else if o.lint            then lint js
-      else if o.print or o.eval then print js
-      else                           write_js source, js
-  catch err
-    if o.watch                  then puts err.message else throw err
-
-# Listen for and compile scripts over stdio.
-compile_stdio: ->
-  code: ''
-  process.stdio.open()
-  process.stdio.addListener 'data', (string) ->
-    code += string if string
-  process.stdio.addListener 'close', ->
-    process.stdio.write CoffeeScript.compile code, compile_options()
-
-# Watch a list of source CoffeeScript files, recompiling them every time the
-# files are updated.
-watch_scripts: ->
-  watch: (source) ->
-    process.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
-
-# Write out a JavaScript source file with the compiled code.
-write_js: (source, js) ->
-  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
-
-# Pipe compiled JS through JSLint (requires a working 'jsl' command).
-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()
-
-# Pretty-print a token stream.
-print_tokens: (tokens) ->
-  strings: for token in tokens
-    '[' + token[0] + ' ' + token[1].toString().replace(/\n/, '\\n') + ']'
-  puts strings.join(' ')
-
-# Use OptionParser for all the options.
-parse_options: ->
-  option_parser: new optparse.OptionParser SWITCHES, BANNER
-  options: option_parser.parse(process.ARGV)
-  sources: options.arguments[2...options.arguments.length]
-
-# The options to pass to the CoffeeScript compiler.
-compile_options: ->
-  if options['no-wrap'] then {no_wrap: true} else {}