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5
.gitignore
vendored
5
.gitignore
vendored
@@ -1,7 +1,2 @@
|
||||
raw
|
||||
presentation
|
||||
test.coffee
|
||||
parser.output
|
||||
test/fixtures/underscore
|
||||
examples/beautiful_code/parse.coffee
|
||||
*.gem
|
||||
120
Cakefile
120
Cakefile
@@ -1,120 +0,0 @@
|
||||
fs = require 'fs'
|
||||
{helpers} = require './lib/helpers'
|
||||
CoffeeScript = require './lib/coffee-script'
|
||||
{spawn, exec} = require 'child_process'
|
||||
|
||||
# ANSI Terminal Colors.
|
||||
red = '\033[0;31m'
|
||||
green = '\033[0;32m'
|
||||
reset = '\033[0m'
|
||||
|
||||
# Run a CoffeeScript through our node/coffee interpreter.
|
||||
run = (args) ->
|
||||
proc = spawn 'bin/coffee', args
|
||||
proc.stderr.on 'data', (buffer) -> puts buffer.toString()
|
||||
proc.on 'exit', (status) -> process.exit(1) if status != 0
|
||||
|
||||
# Log a message with a color.
|
||||
log = (message, color, explanation) ->
|
||||
puts "#color#message#reset #{explanation or ''}"
|
||||
|
||||
option '-p', '--prefix [DIR]', 'set the installation prefix for `cake install`'
|
||||
|
||||
task 'install', 'install CoffeeScript into /usr/local (or --prefix)', (options) ->
|
||||
base = options.prefix or '/usr/local'
|
||||
lib = "#base/lib/coffee-script"
|
||||
bin = "#base/bin"
|
||||
node = "~/.node_libraries/coffee-script"
|
||||
puts "Installing CoffeeScript to #lib"
|
||||
puts "Linking to #node"
|
||||
puts "Linking 'coffee' to #bin/coffee"
|
||||
exec([
|
||||
"mkdir -p #lib #bin"
|
||||
"cp -rf bin lib LICENSE README package.json src #lib"
|
||||
"ln -sf #lib/bin/coffee #bin/coffee"
|
||||
"ln -sf #lib/bin/cake #bin/cake"
|
||||
"mkdir -p ~/.node_libraries"
|
||||
"ln -sf #lib/lib #node"
|
||||
].join(' && '), (err, stdout, stderr) ->
|
||||
if err then print stderr else log 'done', green
|
||||
)
|
||||
|
||||
|
||||
task 'build', 'build the CoffeeScript language from source', ->
|
||||
files = fs.readdirSync 'src'
|
||||
files = 'src/' + file for file in files when file.match(/\.coffee$/)
|
||||
run ['-c', '-o', 'lib'].concat(files)
|
||||
|
||||
|
||||
task 'build:full', 'rebuild the source twice, and run the tests', ->
|
||||
exec 'bin/cake build && bin/cake build && bin/cake test', (err, stdout, stderr) ->
|
||||
print stdout if stdout
|
||||
print stderr if stderr
|
||||
throw err if err
|
||||
|
||||
|
||||
task 'build:parser', 'rebuild the Jison parser (run build first)', ->
|
||||
require 'jison'
|
||||
parser = require('./lib/grammar').parser
|
||||
js = parser.generate()
|
||||
parserPath = 'lib/parser.js'
|
||||
fs.writeFile parserPath, js
|
||||
|
||||
|
||||
task 'build:ultraviolet', 'build and install the Ultraviolet syntax highlighter', ->
|
||||
exec 'plist2syntax ../coffee-script-tmbundle/Syntaxes/CoffeeScript.tmLanguage', (err) ->
|
||||
throw err if err
|
||||
exec 'sudo mv coffeescript.yaml /usr/local/lib/ruby/gems/1.8/gems/ultraviolet-0.10.2/syntax/coffeescript.syntax'
|
||||
|
||||
|
||||
task 'build:browser', 'rebuild the merged script for inclusion in the browser', ->
|
||||
exec 'rake browser', (err) ->
|
||||
throw err if err
|
||||
|
||||
|
||||
task 'doc:site', 'watch and continually rebuild the documentation for the website', ->
|
||||
exec 'rake doc'
|
||||
|
||||
|
||||
task 'doc:source', 'rebuild the internal documentation', ->
|
||||
exec 'docco src/*.coffee && cp -rf docs documentation && rm -r docs', (err) ->
|
||||
throw err if err
|
||||
|
||||
|
||||
task 'doc:underscore', 'rebuild the Underscore.coffee documentation page', ->
|
||||
exec 'docco examples/underscore.coffee && cp -rf docs documentation && rm -r docs', (err) ->
|
||||
throw err if err
|
||||
|
||||
|
||||
task 'loc', 'count the lines of source code in the CoffeeScript compiler', ->
|
||||
sources = ['src/coffee-script.coffee', 'src/grammar.coffee', 'src/helpers.coffee', 'src/lexer.coffee', 'src/nodes.coffee', 'src/rewriter.coffee', 'src/scope.coffee']
|
||||
exec "cat #{ sources.join(' ') } | grep -v '^\\( *#\\|\\s*$\\)' | wc -l | tr -s ' '", (err, stdout) ->
|
||||
print stdout
|
||||
|
||||
|
||||
task 'test', 'run the CoffeeScript language test suite', ->
|
||||
helpers.extend global, require 'assert'
|
||||
passedTests = failedTests = 0
|
||||
startTime = new Date
|
||||
originalOk = ok
|
||||
helpers.extend global, {
|
||||
ok: (args...) -> passedTests += 1; originalOk(args...)
|
||||
CoffeeScript: CoffeeScript
|
||||
}
|
||||
process.on 'exit', ->
|
||||
time = ((new Date - startTime) / 1000).toFixed(2)
|
||||
message = "passed #passedTests tests in #time seconds#reset"
|
||||
if failedTests
|
||||
log "failed #failedTests and #message", red
|
||||
else
|
||||
log message, green
|
||||
fs.readdir 'test', (err, files) ->
|
||||
files.forEach (file) ->
|
||||
return unless file.match(/\.coffee$/i)
|
||||
fileName = path.join 'test', file
|
||||
fs.readFile fileName, (err, code) ->
|
||||
try
|
||||
CoffeeScript.run code.toString(), {fileName}
|
||||
catch err
|
||||
failedTests += 1
|
||||
log "failed #fileName", red, '\n' + err.stack.toString()
|
||||
2
LICENSE
2
LICENSE
@@ -1,4 +1,4 @@
|
||||
Copyright (c) 2010 Jeremy Ashkenas
|
||||
Copyright (c) 2009 Jeremy Ashkenas
|
||||
|
||||
Permission is hereby granted, free of charge, to any person
|
||||
obtaining a copy of this software and associated documentation
|
||||
|
||||
37
README
37
README
@@ -22,44 +22,17 @@
|
||||
|
||||
CoffeeScript is a little language that compiles into JavaScript.
|
||||
|
||||
Install Node.js, and then the CoffeeScript compiler:
|
||||
sudo bin/cake install
|
||||
|
||||
Or, if you have the Node Package Manager installed:
|
||||
sudo npm install coffee-script
|
||||
Install the compiler:
|
||||
gem install coffee-script
|
||||
|
||||
Compile a script:
|
||||
coffee /path/to/script.coffee
|
||||
coffee-script /path/to/script.cs
|
||||
|
||||
For documentation, usage, and examples, see:
|
||||
http://coffeescript.org/
|
||||
http://jashkenas.github.com/coffee-script/
|
||||
|
||||
To suggest a feature, report a bug, or general discussion:
|
||||
To suggest a feature or report a bug:
|
||||
http://github.com/jashkenas/coffee-script/issues/
|
||||
|
||||
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)
|
||||
|
||||
45
Rakefile
45
Rakefile
@@ -1,23 +1,24 @@
|
||||
require 'erb'
|
||||
require 'fileutils'
|
||||
require 'rake/testtask'
|
||||
require 'rubygems'
|
||||
require 'yui/compressor'
|
||||
|
||||
HEADER = <<-EOS
|
||||
/**
|
||||
* CoffeeScript Compiler v0.9.0
|
||||
* http://coffeescript.org
|
||||
*
|
||||
* Copyright 2010, Jeremy Ashkenas
|
||||
* Released under the MIT License
|
||||
*/
|
||||
EOS
|
||||
desc "Run all tests"
|
||||
task :test do
|
||||
$LOAD_PATH.unshift(File.expand_path('test'))
|
||||
require 'redgreen' if Gem.available?('redgreen')
|
||||
require 'test/unit'
|
||||
Dir['test/*/**/test_*.rb'].each {|test| require test }
|
||||
end
|
||||
|
||||
desc "Recompile the Racc parser (pass -v and -g for verbose debugging)"
|
||||
task :build, :extra_args do |t, args|
|
||||
sh "racc #{args[:extra_args]} -o lib/coffee_script/parser.rb lib/coffee_script/grammar.y"
|
||||
end
|
||||
|
||||
desc "Build the documentation page"
|
||||
task :doc do
|
||||
source = 'documentation/index.html.erb'
|
||||
child = fork { exec "bin/coffee --no-wrap -cw -o documentation/js documentation/coffee/*.coffee" }
|
||||
child = fork { exec "bin/coffee-script documentation/cs/*.cs -o documentation/js -w" }
|
||||
at_exit { Process.kill("INT", child) }
|
||||
Signal.trap("INT") { exit }
|
||||
loop do
|
||||
@@ -31,11 +32,19 @@ task :doc do
|
||||
end
|
||||
end
|
||||
|
||||
desc "Build the single concatenated and minified script for the browser"
|
||||
task :browser do
|
||||
sources = %w(helpers.js rewriter.js lexer.js parser.js scope.js nodes.js coffee-script.js)
|
||||
code = sources.map {|s| File.read('lib/' + s) }.join('')
|
||||
code = YUI::JavaScriptCompressor.new.compress(code)
|
||||
File.open('extras/coffee-script.js', 'w+') {|f| f.write(HEADER + code) }
|
||||
namespace :gem do
|
||||
|
||||
desc 'Build and install the coffee-script gem'
|
||||
task :install do
|
||||
sh "gem build coffee-script.gemspec"
|
||||
sh "sudo gem install #{Dir['*.gem'].join(' ')} --local --no-ri --no-rdoc"
|
||||
end
|
||||
|
||||
desc 'Uninstall the coffee-script gem'
|
||||
task :uninstall do
|
||||
sh "sudo gem uninstall -x coffee-script"
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
task :default => :test
|
||||
8
bin/cake
8
bin/cake
@@ -1,8 +0,0 @@
|
||||
#!/usr/bin/env node
|
||||
|
||||
var path = require('path');
|
||||
var fs = require('fs');
|
||||
var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
|
||||
|
||||
require(lib + '/helpers').helpers.extend(global, require('sys'));
|
||||
require(lib + '/cake').run();
|
||||
@@ -1,8 +0,0 @@
|
||||
#!/usr/bin/env node
|
||||
|
||||
var path = require('path');
|
||||
var fs = require('fs');
|
||||
var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
|
||||
|
||||
require(lib + '/helpers').helpers.extend(global, require('sys'));
|
||||
require(lib + '/command').run();
|
||||
5
bin/coffee-script
Executable file
5
bin/coffee-script
Executable file
@@ -0,0 +1,5 @@
|
||||
#!/usr/bin/env ruby
|
||||
|
||||
require "#{File.dirname(__FILE__)}/../lib/coffee_script/command_line.rb"
|
||||
|
||||
CoffeeScript::CommandLine.new
|
||||
21
coffee-script.gemspec
Normal file
21
coffee-script.gemspec
Normal file
@@ -0,0 +1,21 @@
|
||||
Gem::Specification.new do |s|
|
||||
s.name = 'coffee-script'
|
||||
s.version = '0.1.0' # Keep version in sync with coffee-script.rb
|
||||
s.date = '2009-12-24'
|
||||
|
||||
s.homepage = "http://jashkenas.github.com/coffee-script/"
|
||||
s.summary = "The CoffeeScript Compiler"
|
||||
s.description = <<-EOS
|
||||
CoffeeScript is a little language that compiles into JavaScript.
|
||||
EOS
|
||||
|
||||
s.authors = ['Jeremy Ashkenas']
|
||||
s.email = 'jashkenas@gmail.com'
|
||||
s.rubyforge_project = 'coffee-script'
|
||||
s.has_rdoc = false
|
||||
|
||||
s.require_paths = ['lib']
|
||||
s.executables = ['coffee-script']
|
||||
|
||||
s.files = Dir['bin/*', 'examples/*', 'lib/**/*', 'coffee-script.gemspec', 'LICENSE', 'README']
|
||||
end
|
||||
@@ -1,11 +0,0 @@
|
||||
launch() if ignition is on
|
||||
|
||||
volume = 10 if band isnt SpinalTap
|
||||
|
||||
letTheWildRumpusBegin() unless answer is no
|
||||
|
||||
if car.speed < limit then accelerate()
|
||||
|
||||
winner = yes if pick in [47, 92, 13]
|
||||
|
||||
print inspect "My name is " + @name
|
||||
@@ -1,7 +0,0 @@
|
||||
# Eat lunch.
|
||||
lunch = eat food for food in ['toast', 'cheese', 'wine']
|
||||
|
||||
# Naive collision detection.
|
||||
for roid in asteroids
|
||||
for roid2 in asteroids when roid isnt roid2
|
||||
roid.explode() if roid.overlaps roid2
|
||||
@@ -1,4 +0,0 @@
|
||||
###
|
||||
CoffeeScript Compiler v0.9.0
|
||||
Released under the MIT License
|
||||
###
|
||||
@@ -1,9 +0,0 @@
|
||||
fs = require 'fs'
|
||||
|
||||
option '-o', '--output [DIR]', 'directory for compiled code'
|
||||
|
||||
task 'build:parser', 'rebuild the Jison parser', ->
|
||||
require 'jison'
|
||||
code = require('./lib/grammar').parser.generate()
|
||||
dir = options.output or 'lib'
|
||||
fs.writeFile "#dir/parser.js", code
|
||||
@@ -1,25 +0,0 @@
|
||||
class Animal
|
||||
constructor: (@name) ->
|
||||
|
||||
move: (meters) ->
|
||||
alert @name + " moved " + meters + "m."
|
||||
|
||||
class Snake extends Animal
|
||||
move: ->
|
||||
alert "Slithering..."
|
||||
super 5
|
||||
|
||||
class Horse extends Animal
|
||||
move: ->
|
||||
alert "Galloping..."
|
||||
super 45
|
||||
|
||||
sam = new Snake "Sammy the Python"
|
||||
tom = new Horse "Tommy the Palomino"
|
||||
|
||||
sam.move()
|
||||
tom.move()
|
||||
|
||||
|
||||
|
||||
|
||||
@@ -1,5 +0,0 @@
|
||||
cholesterol = 127
|
||||
|
||||
healthy = 200 > cholesterol > 60
|
||||
|
||||
|
||||
@@ -1,11 +0,0 @@
|
||||
mood = greatlyImproved if singing
|
||||
|
||||
if happy and knowsIt
|
||||
clapsHands()
|
||||
chaChaCha()
|
||||
else
|
||||
showIt()
|
||||
|
||||
date = if friday then sue else jill
|
||||
|
||||
options or= defaults
|
||||
@@ -1,8 +0,0 @@
|
||||
solipsism = true if mind? and not world?
|
||||
|
||||
speed ?= 140
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
@@ -1,9 +0,0 @@
|
||||
grade = (student) ->
|
||||
if student.excellentWork
|
||||
"A+"
|
||||
else if student.okayStuff
|
||||
if student.triedHard then "B" else "B-"
|
||||
else
|
||||
"C"
|
||||
|
||||
eldest = if 24 > 21 then "Liz" else "Ike"
|
||||
@@ -1 +0,0 @@
|
||||
six = (one = 1) + (two = 2) + (three = 3)
|
||||
@@ -1,3 +0,0 @@
|
||||
# The first ten global properties.
|
||||
|
||||
globals = (name for name of window)[0...10]
|
||||
@@ -1,6 +0,0 @@
|
||||
alert(
|
||||
try
|
||||
nonexistent / undefined
|
||||
catch error
|
||||
"And the error is ... " + error
|
||||
)
|
||||
@@ -1,6 +0,0 @@
|
||||
Account = (customer, cart) ->
|
||||
@customer = customer
|
||||
@cart = cart
|
||||
|
||||
$('.shopping_cart').bind 'click', (event) =>
|
||||
@customer.purchase @cart
|
||||
@@ -1,2 +0,0 @@
|
||||
square = (x) -> x * x
|
||||
cube = (x) -> square(x) * x
|
||||
@@ -1,5 +0,0 @@
|
||||
html = '''
|
||||
<strong>
|
||||
cup of coffeescript
|
||||
</strong>
|
||||
'''
|
||||
@@ -1,2 +0,0 @@
|
||||
author = "Wittgenstein"
|
||||
quote = "A picture is a fact. -- #author"
|
||||
@@ -1,6 +0,0 @@
|
||||
sentence = "#{ 22 / 7 } is a decent approximation of π"
|
||||
|
||||
sep = "[.\\/\\- ]"
|
||||
dates = /\d+#sep\d+#sep\d+/g
|
||||
|
||||
|
||||
@@ -1,5 +0,0 @@
|
||||
weatherReport = (location) ->
|
||||
# Make an Ajax request to fetch the weather...
|
||||
[location, 72, "Mostly Sunny"]
|
||||
|
||||
[city, temp, forecast] = weatherReport "Berkeley, CA"
|
||||
@@ -1,4 +0,0 @@
|
||||
yearsOld = max: 10, ida: 9, tim: 11
|
||||
|
||||
ages = for child, age of yearsOld
|
||||
child + " is " + age
|
||||
@@ -1,11 +0,0 @@
|
||||
futurists =
|
||||
sculptor: "Umberto Boccioni"
|
||||
painter: "Vladimir Burliuk"
|
||||
poet:
|
||||
name: "F.T. Marinetti"
|
||||
address: [
|
||||
"Via Roma 42R"
|
||||
"Bellagio, Italy 22021"
|
||||
]
|
||||
|
||||
{poet: {name, address: [street, city]}} = futurists
|
||||
@@ -1,17 +0,0 @@
|
||||
song = ["do", "re", "mi", "fa", "so"]
|
||||
|
||||
singers = {Jagger: "Rock", Elvis: "Roll"}
|
||||
|
||||
matrix = [
|
||||
1, 0, 1
|
||||
0, 0, 1
|
||||
1, 1, 0
|
||||
]
|
||||
|
||||
kids =
|
||||
brother:
|
||||
name: "Max"
|
||||
age: 11
|
||||
sister:
|
||||
name: "Ida"
|
||||
age: 9
|
||||
@@ -1 +0,0 @@
|
||||
$('.account').css class: 'active'
|
||||
@@ -1,28 +0,0 @@
|
||||
# Assignment:
|
||||
number = 42
|
||||
opposite = true
|
||||
|
||||
# Conditions:
|
||||
number = -42 if opposite
|
||||
|
||||
# Functions:
|
||||
square = (x) -> x * x
|
||||
|
||||
# Arrays:
|
||||
list = [1, 2, 3, 4, 5]
|
||||
|
||||
# Objects:
|
||||
math =
|
||||
root: Math.sqrt
|
||||
square: square
|
||||
cube: (x) -> x * square x
|
||||
|
||||
# Splats:
|
||||
race = (winner, runners...) ->
|
||||
print winner, runners
|
||||
|
||||
# Existence:
|
||||
alert "I knew it!" if elvis?
|
||||
|
||||
# Array comprehensions:
|
||||
cubes = math.cube num for num in list
|
||||
@@ -1,4 +0,0 @@
|
||||
theBait = 1000
|
||||
theSwitch = 0
|
||||
|
||||
[theBait, theSwitch] = [theSwitch, theBait]
|
||||
@@ -1,7 +0,0 @@
|
||||
tag = "<impossible>"
|
||||
|
||||
[open, contents..., close] = tag.split("")
|
||||
|
||||
|
||||
|
||||
|
||||
@@ -1,2 +0,0 @@
|
||||
String::dasherize = ->
|
||||
this.replace /_/g, "-"
|
||||
@@ -1,6 +0,0 @@
|
||||
countdown = num for num in [10..1]
|
||||
|
||||
deliverEggs = ->
|
||||
for i in [0...eggs.length] by 12
|
||||
dozen = eggs[i...i+12]
|
||||
deliver new eggCarton dozen
|
||||
@@ -1,5 +0,0 @@
|
||||
outer = 1
|
||||
changeNumbers = ->
|
||||
inner = -1
|
||||
outer = 10
|
||||
inner = changeNumbers()
|
||||
@@ -1,6 +0,0 @@
|
||||
numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
|
||||
|
||||
threeToSix = numbers[3..6]
|
||||
|
||||
copy = numbers[0...numbers.length]
|
||||
|
||||
@@ -1 +0,0 @@
|
||||
lottery.drawWinner()?.address?.zipcode
|
||||
@@ -1,25 +0,0 @@
|
||||
gold = silver = rest = "unknown"
|
||||
|
||||
awardMedals = (first, second, others...) ->
|
||||
gold = first
|
||||
silver = second
|
||||
rest = others
|
||||
|
||||
contenders = [
|
||||
"Michael Phelps"
|
||||
"Liu Xiang"
|
||||
"Yao Ming"
|
||||
"Allyson Felix"
|
||||
"Shawn Johnson"
|
||||
"Roman Sebrle"
|
||||
"Guo Jingjing"
|
||||
"Tyson Gay"
|
||||
"Asafa Powell"
|
||||
"Usain Bolt"
|
||||
]
|
||||
|
||||
awardMedals contenders...
|
||||
|
||||
alert "Gold: " + gold
|
||||
alert "Silver: " + silver
|
||||
alert "The Field: " + rest
|
||||
@@ -1,5 +0,0 @@
|
||||
numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
|
||||
|
||||
numbers[3..6] = [-3, -4, -5, -6]
|
||||
|
||||
|
||||
@@ -1,10 +0,0 @@
|
||||
switch day
|
||||
when "Mon" then goToWork()
|
||||
when "Tue" then goToThePark()
|
||||
when "Thu" then goIceFishing()
|
||||
when "Fri", "Sat"
|
||||
if day is bingoDay
|
||||
goToBingo()
|
||||
goDancing()
|
||||
when "Sun" then goToChurch()
|
||||
else goToWork()
|
||||
@@ -1,7 +0,0 @@
|
||||
try
|
||||
allHellBreaksLoose()
|
||||
catsAndDogsLivingTogether()
|
||||
catch error
|
||||
print error
|
||||
finally
|
||||
cleanUp()
|
||||
@@ -1,10 +0,0 @@
|
||||
# Econ 101
|
||||
if this.studyingEconomics
|
||||
buy() while supply > demand
|
||||
sell() until supply > demand
|
||||
|
||||
# Nursery Rhyme
|
||||
num = 6
|
||||
lyrics = while num -= 1
|
||||
num + " little monkeys, jumping on the bed.
|
||||
One fell out and bumped his head."
|
||||
7
documentation/cs/aliases.cs
Normal file
7
documentation/cs/aliases.cs
Normal file
@@ -0,0 +1,7 @@
|
||||
launch() if ignition is on
|
||||
|
||||
volume: 10 if band aint spinal_tap
|
||||
|
||||
let_the_wild_rumpus_begin() unless answer is no
|
||||
|
||||
if car.speed < speed_limit then accelerate().
|
||||
5
documentation/cs/array_comprehensions.cs
Normal file
5
documentation/cs/array_comprehensions.cs
Normal file
@@ -0,0 +1,5 @@
|
||||
# Eat lunch.
|
||||
lunch: food.eat() for food in ['toast', 'cheese', 'wine'].
|
||||
|
||||
# Zebra-stripe a table.
|
||||
highlight(row) for row, i in table if i % 2 is 0.
|
||||
2
documentation/cs/assignment.cs
Normal file
2
documentation/cs/assignment.cs
Normal file
@@ -0,0 +1,2 @@
|
||||
greeting: "Hello CoffeeScript"
|
||||
difficulty: 0.5
|
||||
9
documentation/cs/conditionals.cs
Normal file
9
documentation/cs/conditionals.cs
Normal file
@@ -0,0 +1,9 @@
|
||||
mood: greatly_improved if singing
|
||||
|
||||
if happy and knows_it
|
||||
claps_hands()
|
||||
cha_cha_cha().
|
||||
|
||||
date: if friday then sue else jill.
|
||||
|
||||
expensive ||: do_the_math()
|
||||
@@ -1,5 +1,4 @@
|
||||
hi = `function() {
|
||||
hi: `function() {
|
||||
return [document.title, "Hello JavaScript"].join(": ");
|
||||
}`
|
||||
|
||||
|
||||
9
documentation/cs/expressions.cs
Normal file
9
documentation/cs/expressions.cs
Normal file
@@ -0,0 +1,9 @@
|
||||
grade: student =>
|
||||
if student.excellent_work
|
||||
"A+"
|
||||
else if student.okay_stuff
|
||||
if student.tried_hard then "B" else "B-".
|
||||
else
|
||||
"C"..
|
||||
|
||||
eldest: if 24 > 21 then "Liz" else "Ike".
|
||||
2
documentation/cs/functions.cs
Normal file
2
documentation/cs/functions.cs
Normal file
@@ -0,0 +1,2 @@
|
||||
square: x => x * x.
|
||||
cube: x => square(x) * x.
|
||||
3
documentation/cs/intro.cs
Normal file
3
documentation/cs/intro.cs
Normal file
@@ -0,0 +1,3 @@
|
||||
# CoffeeScript on the left, JS on the right.
|
||||
|
||||
square: x => x * x.
|
||||
6
documentation/cs/objects_and_arrays.cs
Normal file
6
documentation/cs/objects_and_arrays.cs
Normal file
@@ -0,0 +1,6 @@
|
||||
song: ["do", "re", "mi", "fa", "so"]
|
||||
ages: {
|
||||
max: 10
|
||||
ida: 9
|
||||
tim: 11
|
||||
}
|
||||
22
documentation/cs/overview.cs
Normal file
22
documentation/cs/overview.cs
Normal file
@@ -0,0 +1,22 @@
|
||||
# Assignment:
|
||||
number: 42
|
||||
opposite_day: true
|
||||
|
||||
# Conditions:
|
||||
number: -42 if opposite_day
|
||||
|
||||
# Functions:
|
||||
square: x => x * x.
|
||||
|
||||
# Arrays:
|
||||
list: [1, 2, 3, 4, 5]
|
||||
|
||||
# Objects:
|
||||
math: {
|
||||
root: Math.sqrt
|
||||
square: square
|
||||
cube: x => x * square(x).
|
||||
}
|
||||
|
||||
# Array comprehensions:
|
||||
cubed_list: math.cube(num) for num in list.
|
||||
11
documentation/cs/punctuation.cs
Normal file
11
documentation/cs/punctuation.cs
Normal file
@@ -0,0 +1,11 @@
|
||||
# Comments start with hash marks.
|
||||
|
||||
# Periods mark the end of a block.
|
||||
left_hand: if raining then umbrella else parasol.
|
||||
|
||||
# To signal the beginning of the next expression,
|
||||
# use "then", or a newline.
|
||||
left_hand: if raining
|
||||
umbrella
|
||||
else
|
||||
parasol.
|
||||
5
documentation/cs/scope.cs
Normal file
5
documentation/cs/scope.cs
Normal file
@@ -0,0 +1,5 @@
|
||||
num: 1
|
||||
change_numbers: =>
|
||||
num: 2
|
||||
new_num: 3.
|
||||
new_num: change_numbers()
|
||||
2
documentation/cs/slices.cs
Normal file
2
documentation/cs/slices.cs
Normal file
@@ -0,0 +1,2 @@
|
||||
nums: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
|
||||
three_to_six: nums[3, 6]
|
||||
@@ -1,8 +1,7 @@
|
||||
mobyDick = "Call me Ishmael. Some years ago --
|
||||
moby_dick: "Call me Ishmael. Some years ago --
|
||||
never mind how long precisely -- having little
|
||||
or no money in my purse, and nothing particular
|
||||
to interest me on shore, I thought I would sail
|
||||
about a little and see the watery part of the
|
||||
world..."
|
||||
|
||||
|
||||
25
documentation/cs/super.cs
Normal file
25
documentation/cs/super.cs
Normal file
@@ -0,0 +1,25 @@
|
||||
Animal: => .
|
||||
Animal.prototype.move: meters =>
|
||||
alert(this.name + " moved " + meters + "m.").
|
||||
|
||||
Snake: name => this.name: name.
|
||||
Snake.prototype: new Animal()
|
||||
Snake.prototype.move: =>
|
||||
alert("Slithering...")
|
||||
super(5).
|
||||
|
||||
Horse: name => this.name: name.
|
||||
Horse.prototype: new Animal()
|
||||
Horse.prototype.move: =>
|
||||
alert("Galloping...")
|
||||
super(45).
|
||||
|
||||
sam: new Snake("Sammy the Python")
|
||||
tom: new Horse("Tommy the Palomino")
|
||||
|
||||
sam.move()
|
||||
tom.move()
|
||||
|
||||
|
||||
|
||||
|
||||
9
documentation/cs/switch.cs
Normal file
9
documentation/cs/switch.cs
Normal file
@@ -0,0 +1,9 @@
|
||||
switch day
|
||||
when "Tuesday" then eat_breakfast()
|
||||
when "Wednesday" then go_to_the_park()
|
||||
when "Saturday"
|
||||
if day is bingo_day
|
||||
go_to_bingo()
|
||||
go_dancing().
|
||||
when "Sunday" then go_to_church()
|
||||
else go_to_work().
|
||||
7
documentation/cs/try.cs
Normal file
7
documentation/cs/try.cs
Normal file
@@ -0,0 +1,7 @@
|
||||
try
|
||||
all_hell_breaks_loose()
|
||||
cats_and_dogs_living_together()
|
||||
catch error
|
||||
print(error)
|
||||
finally
|
||||
clean_up().
|
||||
5
documentation/cs/while.cs
Normal file
5
documentation/cs/while.cs
Normal file
@@ -0,0 +1,5 @@
|
||||
while demand > supply
|
||||
sell()
|
||||
restock().
|
||||
|
||||
while supply > demand then buy().
|
||||
147
documentation/css/amy.css
Normal file
147
documentation/css/amy.css
Normal file
@@ -0,0 +1,147 @@
|
||||
pre.amy .PolymorphicVariants {
|
||||
color: #60B0FF;
|
||||
font-style: italic;
|
||||
}
|
||||
pre.amy .KeywordDecorator {
|
||||
color: #D0D0FF;
|
||||
}
|
||||
pre.amy .Punctuation {
|
||||
color: #805080;
|
||||
}
|
||||
pre.amy .InheritedClass {
|
||||
}
|
||||
pre.amy .InvalidDepricated {
|
||||
background-color: #CC66FF;
|
||||
color: #200020;
|
||||
}
|
||||
pre.amy .LibraryVariable {
|
||||
}
|
||||
pre.amy .TokenReferenceOcamlyacc {
|
||||
color: #3CB0D0;
|
||||
}
|
||||
pre.amy .Storage {
|
||||
color: #B0FFF0;
|
||||
}
|
||||
pre.amy .KeywordOperator {
|
||||
color: #A0A0FF;
|
||||
}
|
||||
pre.amy .CharacterConstant {
|
||||
color: #666666;
|
||||
}
|
||||
pre.amy .line-numbers {
|
||||
background-color: #800000;
|
||||
color: #000000;
|
||||
}
|
||||
pre.amy .ClassName {
|
||||
color: #70E080;
|
||||
}
|
||||
pre.amy .Int64Constant {
|
||||
font-style: italic;
|
||||
}
|
||||
pre.amy .NonTerminalReferenceOcamlyacc {
|
||||
color: #C0F0F0;
|
||||
}
|
||||
pre.amy .TokenDefinitionOcamlyacc {
|
||||
color: #3080A0;
|
||||
}
|
||||
pre.amy .ClassType {
|
||||
color: #70E0A0;
|
||||
}
|
||||
pre.amy .ControlKeyword {
|
||||
color: #80A0FF;
|
||||
}
|
||||
pre.amy .LineNumberDirectives {
|
||||
text-decoration: underline;
|
||||
color: #C080C0;
|
||||
}
|
||||
pre.amy .FloatingPointConstant {
|
||||
text-decoration: underline;
|
||||
}
|
||||
pre.amy .Int32Constant {
|
||||
font-weight: bold;
|
||||
}
|
||||
pre.amy .TagName {
|
||||
color: #009090;
|
||||
}
|
||||
pre.amy .ModuleTypeDefinitions {
|
||||
text-decoration: underline;
|
||||
color: #B000B0;
|
||||
}
|
||||
pre.amy .Integer {
|
||||
color: #7090B0;
|
||||
}
|
||||
pre.amy .Camlp4TempParser {
|
||||
}
|
||||
pre.amy .InvalidIllegal {
|
||||
font-weight: bold;
|
||||
background-color: #FFFF00;
|
||||
color: #400080;
|
||||
}
|
||||
pre.amy .LibraryConstant {
|
||||
background-color: #200020;
|
||||
}
|
||||
pre.amy .ModuleDefinitions {
|
||||
color: #B000B0;
|
||||
}
|
||||
pre.amy .Variants {
|
||||
color: #60B0FF;
|
||||
}
|
||||
pre.amy .CompilerDirectives {
|
||||
color: #C080C0;
|
||||
}
|
||||
pre.amy .FloatingPointInfixOperator {
|
||||
text-decoration: underline;
|
||||
}
|
||||
pre.amy .BuiltInConstant1 {
|
||||
}
|
||||
pre.amy {
|
||||
background-color: #200020;
|
||||
color: #D0D0FF;
|
||||
}
|
||||
pre.amy .FunctionArgument {
|
||||
color: #80B0B0;
|
||||
}
|
||||
pre.amy .FloatingPointPrefixOperator {
|
||||
text-decoration: underline;
|
||||
}
|
||||
pre.amy .NativeintConstant {
|
||||
font-weight: bold;
|
||||
}
|
||||
pre.amy .BuiltInConstant {
|
||||
color: #707090;
|
||||
}
|
||||
pre.amy .BooleanConstant {
|
||||
color: #8080A0;
|
||||
}
|
||||
pre.amy .LibraryClassType {
|
||||
}
|
||||
pre.amy .TagAttribute {
|
||||
}
|
||||
pre.amy .Keyword {
|
||||
color: #A080FF;
|
||||
}
|
||||
pre.amy .UserDefinedConstant {
|
||||
}
|
||||
pre.amy .String {
|
||||
color: #999999;
|
||||
}
|
||||
pre.amy .Camlp4Code {
|
||||
background-color: #350060;
|
||||
}
|
||||
pre.amy .NonTerminalDefinitionOcamlyacc {
|
||||
color: #90E0E0;
|
||||
}
|
||||
pre.amy .FunctionName {
|
||||
color: #50A0A0;
|
||||
}
|
||||
pre.amy .SupportModules {
|
||||
color: #A00050;
|
||||
}
|
||||
pre.amy .Variable {
|
||||
color: #008080;
|
||||
}
|
||||
pre.amy .Comment {
|
||||
background-color: #200020;
|
||||
color: #404080;
|
||||
font-style: italic;
|
||||
}
|
||||
@@ -1,29 +1,29 @@
|
||||
body {
|
||||
font-size: 13px;
|
||||
font-size: 14px;
|
||||
line-height: 20px;
|
||||
background: #f3f3f9;
|
||||
color: #191933;
|
||||
font-family: "Lucida Grande", "Lucida Sans Unicode", Helvetica, Arial, sans-serif !important;
|
||||
font-family: Arial, Helvetica, sans-serif;
|
||||
}
|
||||
div.container {
|
||||
width: 950px;
|
||||
margin: 100px 0 50px 50px;
|
||||
width: 850px;
|
||||
margin: 50px 0 50px 50px;
|
||||
}
|
||||
p, li {
|
||||
p {
|
||||
padding-left: 13px;
|
||||
width: 625px;
|
||||
}
|
||||
a {
|
||||
color: #000055;
|
||||
}
|
||||
h1, h2, h3, h4, h5, h6 {
|
||||
padding-left: 13px;
|
||||
margin-top: 40px;
|
||||
}
|
||||
br.clear {
|
||||
height: 0;
|
||||
clear: both;
|
||||
}
|
||||
ul {
|
||||
padding-left: 20px;
|
||||
}
|
||||
b.header {
|
||||
color: #000055;
|
||||
display: block;
|
||||
@@ -31,7 +31,7 @@ b.header {
|
||||
font-size: 16px;
|
||||
}
|
||||
li {
|
||||
margin-bottom: 10px;
|
||||
margin-bottom: 7px;
|
||||
}
|
||||
table {
|
||||
margin: 16px 0 0 13px; padding: 0;
|
||||
@@ -43,13 +43,11 @@ table {
|
||||
td {
|
||||
padding: 9px 15px 9px 0;
|
||||
}
|
||||
code, pre, tt, textarea {
|
||||
code, pre, tt {
|
||||
font-family: Monaco, Consolas, "Lucida Console", monospace;
|
||||
font-size: 12px;
|
||||
line-height: 18px;
|
||||
color: #191955;
|
||||
white-space: pre-wrap;
|
||||
word-wrap: break-word;
|
||||
}
|
||||
tt {
|
||||
background: #f8f8ff;
|
||||
@@ -63,15 +61,10 @@ code, pre, tt, textarea {
|
||||
padding: 3px 0 3px 12px;
|
||||
font-size: 12px;
|
||||
}
|
||||
pre.no_bar {
|
||||
border-left: 0;
|
||||
margin-left: 0;
|
||||
padding-left: 0;
|
||||
}
|
||||
div.code {
|
||||
position: relative;
|
||||
border: 1px solid #cacaca;
|
||||
background: #fafaff;
|
||||
background: #fff;
|
||||
padding: 7px 0 10px 0;
|
||||
-moz-border-radius: 5px; -webkit-border-radius: 5px; border-radius: 5px;
|
||||
-webkit-box-shadow: 0px 0px 7px #cacaca;
|
||||
@@ -80,194 +73,13 @@ div.code {
|
||||
position: absolute;
|
||||
right: 8px; bottom: 8px;
|
||||
}
|
||||
div.code pre, div.code textarea {
|
||||
div.code pre {
|
||||
float: left;
|
||||
width: 450px;
|
||||
background: #fafaff;
|
||||
width: 410px;
|
||||
border-left: 1px dotted #559;
|
||||
padding: 0 0 0 12px;
|
||||
margin: 0;
|
||||
}
|
||||
div.code pre:first-child {
|
||||
border-left: 0;
|
||||
}
|
||||
|
||||
#fadeout {
|
||||
z-index: 50;
|
||||
position: fixed;
|
||||
left: 0; top: 0; right: 0;
|
||||
height: 100px;
|
||||
background: -webkit-gradient(linear, left top, left bottom, from(rgba(255, 255, 255, 255)), to(rgba(255, 255, 255, 0)));
|
||||
background: -moz-linear-gradient(top, rgba(255, 255, 255, 255), rgba(255, 255, 255, 0));
|
||||
}
|
||||
|
||||
#flybar {
|
||||
position: fixed;
|
||||
z-index: 100;
|
||||
height: 50px;
|
||||
min-width: 490px;
|
||||
left: 40px; right: 40px; top: 25px;
|
||||
background: #ddd;
|
||||
padding-left: 235px;
|
||||
background: -webkit-gradient(linear, left top, left bottom, from(#f5f5f5), to(#d0d0d0));
|
||||
background: -moz-linear-gradient(top, #f5f5f5, #d0d0d0);
|
||||
filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, StartColorStr='#F5F5F5', EndColorStr='#D0D0D0');
|
||||
border: 1px solid #aaa;
|
||||
-webkit-border-radius: 20px; -moz-border-radius: 20px; border-radius: 20px;
|
||||
-webkit-box-shadow: 0 0 7px #aaa; -moz-box-shadow: 0 0 7px #aaa;
|
||||
}
|
||||
#logo {
|
||||
display: block;
|
||||
width: 215px; height: 50px;
|
||||
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-size: 10px;
|
||||
line-height: 15px;
|
||||
overflow: hidden;
|
||||
text-transform: uppercase;
|
||||
}
|
||||
.navigation {
|
||||
height: 50px;
|
||||
font-size: 11px;
|
||||
line-height: 50px;
|
||||
text-transform: uppercase;
|
||||
position: relative;
|
||||
float: left;
|
||||
padding: 0 20px;
|
||||
border: 1px solid #bbb;
|
||||
border-top: 0; border-bottom: 0; border-left-width: 0;
|
||||
cursor: pointer;
|
||||
}
|
||||
body.full_screen .navigation {
|
||||
position: static;
|
||||
}
|
||||
.navigation.toc {
|
||||
border-left-width: 1px;
|
||||
}
|
||||
.navigation:hover,
|
||||
.navigation.active {
|
||||
background: #d0d0d0;
|
||||
background: -webkit-gradient(linear, left top, left bottom, from(#f0f0f0), to(#c0c0c0));
|
||||
background: -moz-linear-gradient(top, #f0f0f0, #c0c0c0);
|
||||
filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, StartColorStr='#F0F0F0', EndColorStr='#C0C0C0');
|
||||
}
|
||||
.navigation .button {
|
||||
font-weight: bold;
|
||||
}
|
||||
.navigation .contents {
|
||||
display: none;
|
||||
position: absolute;
|
||||
background: #fff;
|
||||
top: 51px; left: 0;
|
||||
padding: 5px 0;
|
||||
-webkit-border-radius: 5px; -moz-border-radius: 5px; border-radius: 5px;
|
||||
-webkit-border-top-left-radius: 0; -moz-border-radius-topleft: 0;
|
||||
-webkit-border-top-right-radius: 0; -moz-border-radius-topright: 0;
|
||||
-webkit-box-shadow: 0 5px 10px #999; -moz-box-shadow: 0 5px 10px #999;
|
||||
}
|
||||
.navigation.active .contents {
|
||||
display: block;
|
||||
}
|
||||
.navigation .contents.repl_wrapper {
|
||||
left: -162px;
|
||||
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 .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: 290px;
|
||||
text-transform: none;
|
||||
text-decoration: none;
|
||||
font-weight: normal;
|
||||
height: 12px;
|
||||
line-height: 12px;
|
||||
padding: 4px 10px;
|
||||
}
|
||||
.navigation .contents a:hover {
|
||||
background: #f0f0f0;
|
||||
}
|
||||
|
||||
.bookmark {
|
||||
display: block;
|
||||
width: 0; height: 0;
|
||||
position: relative;
|
||||
top: -90px;
|
||||
}
|
||||
|
||||
#repl_source, #repl_results {
|
||||
background: transparent;
|
||||
outline: none;
|
||||
margin: 5px 0 20px;
|
||||
}
|
||||
#repl_source_wrap {
|
||||
margin-left: 5px;
|
||||
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;
|
||||
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%;
|
||||
}
|
||||
}
|
||||
@@ -28,7 +28,6 @@ pre.idle .LibraryConstant {
|
||||
color: #A535AE;
|
||||
}
|
||||
pre.idle .FunctionArgument {
|
||||
color: #0076ad;
|
||||
}
|
||||
pre.idle .BuiltInConstant {
|
||||
color: #A535AE;
|
||||
@@ -57,7 +56,6 @@ pre.idle .FunctionName {
|
||||
color: #21439C;
|
||||
}
|
||||
pre.idle .Variable {
|
||||
color: #A535AE;
|
||||
}
|
||||
pre.idle .Comment {
|
||||
color: #919191;
|
||||
|
||||
@@ -1,43 +0,0 @@
|
||||
<!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 … <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">'fs'</span>
|
||||
<span class="nv">path = </span><span class="nx">require</span> <span class="s1">'path'</span>
|
||||
<span class="nv">helpers = </span><span class="nx">require</span><span class="p">(</span><span class="s1">'./helpers'</span><span class="p">).</span><span class="nx">helpers</span>
|
||||
<span class="nv">optparse = </span><span class="nx">require</span> <span class="s1">'./optparse'</span>
|
||||
<span class="nv">CoffeeScript = </span><span class="nx">require</span> <span class="s1">'./coffee-script'</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></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="nx">task</span><span class="o">:</span> <span class="p">(</span><span class="nx">name</span><span class="p">,</span> <span class="nx">description</span><span class="p">,</span> <span class="nx">action</span><span class="p">)</span> <span class="o">-></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="nx">name</span><span class="p">,</span> <span class="nx">description</span><span class="p">,</span> <span class="nx">action</span><span class="p">}</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-6">#</a> </div> <p>Define an option that the Cakefile accepts. The parsed options hash,
|
||||
containing all of the command-line options passed, will be made available
|
||||
as the first argument to the action.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">option</span><span class="o">:</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">-></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="nx">invoke</span><span class="o">:</span> <span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">missingTask</span> <span class="nx">name</span> <span class="nx">unless</span> <span class="nx">tasks</span><span class="p">[</span><span class="nx">name</span><span class="p">]</span>
|
||||
<span class="nx">tasks</span><span class="p">[</span><span class="nx">name</span><span class="p">].</span><span class="nx">action</span> <span class="nx">options</span></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">-></span>
|
||||
<span class="nx">path</span><span class="p">.</span><span class="nx">exists</span> <span class="s1">'Cakefile'</span><span class="p">,</span> <span class="p">(</span><span class="nx">exists</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="p">(</span><span class="s2">"Cakefile not found in #{process.cwd()}"</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">'Cakefile'</span><span class="p">).</span><span class="nx">toString</span><span class="p">(),</span> <span class="nx">fileName</span><span class="o">:</span> <span class="s1">'Cakefile'</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">printTasks</span><span class="p">()</span> <span class="nx">unless</span> <span class="nx">args</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="nv">options = </span><span class="nx">oparse</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">args</span><span class="p">)</span>
|
||||
<span class="nx">invoke</span> <span class="nx">arg</span> <span class="k">for</span> <span class="nx">arg</span> <span class="k">in</span> <span class="nx">options</span><span class="p">.</span><span class="nx">arguments</span></pre></div> </td> </tr> <tr id="section-9"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-9">#</a> </div> <p>Display the list of Cake tasks in a format similar to <code>rake -T</code></p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">printTasks = </span><span class="o">-></span>
|
||||
<span class="nx">puts</span> <span class="s1">''</span>
|
||||
<span class="k">for</span> <span class="nx">all</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">></span> <span class="mi">0</span> <span class="k">then</span> <span class="p">(</span><span class="s1">' '</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">''</span><span class="p">)</span> <span class="k">else</span> <span class="s1">''</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">"# #task.description"</span> <span class="k">else</span> <span class="s1">''</span>
|
||||
<span class="nx">puts</span> <span class="s2">"cake #name#spaces #desc"</span>
|
||||
<span class="nx">puts</span> <span class="nx">oparse</span><span class="p">.</span><span class="nx">help</span><span class="p">()</span> <span class="k">if</span> <span class="nx">switches</span><span class="p">.</span><span class="nx">length</span></pre></div> </td> </tr> <tr id="section-10"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-10">#</a> </div> <p>Print an error and exit when attempting to all an undefined task.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">missingTask = </span><span class="p">(</span><span class="nx">task</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">puts</span> <span class="s2">"No such task: \"#task\""</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>
|
||||
@@ -1,59 +0,0 @@
|
||||
<!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 … <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">'path'</span>
|
||||
<span class="nv">Lexer = </span><span class="nx">require</span><span class="p">(</span><span class="s1">'./lexer'</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">'./parser'</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">'./helpers'</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">'./nodes'</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">'.coffee'</span><span class="p">,</span> <span class="p">(</span><span class="nx">content</span><span class="p">)</span> <span class="o">-></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">'0.9.0'</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-4">#</a> </div> <p>Instantiate a Lexer for our use here.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">lexer = </span><span class="k">new</span> <span class="nx">Lexer</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-5">#</a> </div> <p>Compile a string of CoffeeScript code to JavaScript, using the Coffee/Jison
|
||||
compiler.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.compile = compile = </span><span class="p">(</span><span class="nx">code</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">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">"In #options.fileName, #err.message"</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">fileName</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">-></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">-></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">-></span>
|
||||
<span class="nv">module.filename = __filename = </span><span class="nx">options</span><span class="p">.</span><span class="nx">fileName</span>
|
||||
<span class="nv">__dirname = </span><span class="nx">path</span><span class="p">.</span><span class="nx">dirname</span> <span class="nx">__filename</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>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="nx">lex</span><span class="o">:</span> <span class="o">-></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">""</span><span class="p">]</span>
|
||||
<span class="nx">@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="nx">setInput</span><span class="o">:</span> <span class="p">(</span><span class="nx">tokens</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="vi">@tokens = </span><span class="nx">tokens</span>
|
||||
<span class="vi">@pos = </span><span class="mi">0</span>
|
||||
<span class="nx">upcomingInput</span><span class="o">:</span> <span class="o">-></span> <span class="s2">""</span></pre></div> </td> </tr> <tr id="section-10"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-10">#</a> </div> <p>Activate CoffeeScript in the browser by having it compile and evaluate
|
||||
all script tags with a content-type of <code>text/coffeescript</code>. This happens
|
||||
on page load. Unfortunately, the text contents of remote scripts cannot be
|
||||
accessed from the browser, so only inline script tags will work.</p> </td> <td class="code"> <div class="highlight"><pre><span class="k">if</span> <span class="nb">document</span><span class="o">?</span> <span class="o">and</span> <span class="nb">document</span><span class="p">.</span><span class="nx">getElementsByTagName</span>
|
||||
<span class="nv">processScripts = </span><span class="o">-></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">'script'</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">'text/coffeescript'</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">'load'</span><span class="p">,</span> <span class="nx">processScripts</span><span class="p">,</span> <span class="kc">false</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nb">window</span><span class="p">.</span><span class="nx">attachEvent</span>
|
||||
<span class="nb">window</span><span class="p">.</span><span class="nx">attachEvent</span> <span class="s1">'onload'</span><span class="p">,</span> <span class="nx">processScripts</span>
|
||||
|
||||
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>
|
||||
@@ -1,133 +0,0 @@
|
||||
<!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 … <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">'fs'</span>
|
||||
<span class="nv">path = </span><span class="nx">require</span> <span class="s1">'path'</span>
|
||||
<span class="nv">optparse = </span><span class="nx">require</span> <span class="s1">'./optparse'</span>
|
||||
<span class="nv">CoffeeScript = </span><span class="nx">require</span> <span class="s1">'./coffee-script'</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="s1">'child_process'</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">'''</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"> '''</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">'-c'</span><span class="p">,</span> <span class="s1">'--compile'</span><span class="p">,</span> <span class="s1">'compile to JavaScript and save as .js files'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-i'</span><span class="p">,</span> <span class="s1">'--interactive'</span><span class="p">,</span> <span class="s1">'run an interactive CoffeeScript REPL'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-o'</span><span class="p">,</span> <span class="s1">'--output [DIR]'</span><span class="p">,</span> <span class="s1">'set the directory for compiled JavaScript'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-w'</span><span class="p">,</span> <span class="s1">'--watch'</span><span class="p">,</span> <span class="s1">'watch scripts for changes, and recompile'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-p'</span><span class="p">,</span> <span class="s1">'--print'</span><span class="p">,</span> <span class="s1">'print the compiled JavaScript to stdout'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-l'</span><span class="p">,</span> <span class="s1">'--lint'</span><span class="p">,</span> <span class="s1">'pipe the compiled JavaScript through JSLint'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-s'</span><span class="p">,</span> <span class="s1">'--stdio'</span><span class="p">,</span> <span class="s1">'listen for and compile scripts over stdio'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-e'</span><span class="p">,</span> <span class="s1">'--eval'</span><span class="p">,</span> <span class="s1">'compile a string from the command line'</span><span class="p">]</span>
|
||||
<span class="p">[</span> <span class="s1">'--no-wrap'</span><span class="p">,</span> <span class="s1">'compile without the top-level function wrapper'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-t'</span><span class="p">,</span> <span class="s1">'--tokens'</span><span class="p">,</span> <span class="s1">'print the tokens that the lexer produces'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-n'</span><span class="p">,</span> <span class="s1">'--nodes'</span><span class="p">,</span> <span class="s1">'print the parse tree that Jison produces'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-v'</span><span class="p">,</span> <span class="s1">'--version'</span><span class="p">,</span> <span class="s1">'display CoffeeScript version'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s1">'-h'</span><span class="p">,</span> <span class="s1">'--help'</span><span class="p">,</span> <span class="s1">'display this help message'</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">optionParser = </span><span class="kc">null</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-6">#</a> </div> <p>Run <code>coffee</code> by parsing passed options and determining what action to take.
|
||||
Many flags cause us to divert before compiling anything. Flags passed after
|
||||
<code>--</code> will be passed verbatim to your script as arguments in <code>process.argv</code></p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.run = </span><span class="o">-></span>
|
||||
<span class="nx">parseOptions</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="nx">usage</span><span class="p">()</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">help</span>
|
||||
<span class="k">return</span> <span class="nx">version</span><span class="p">()</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">version</span>
|
||||
<span class="k">return</span> <span class="nx">require</span> <span class="s1">'./repl'</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">compileStdio</span><span class="p">()</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">stdio</span>
|
||||
<span class="k">return</span> <span class="nx">compileScript</span> <span class="s1">'console'</span><span class="p">,</span> <span class="nx">sources</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nb">eval</span>
|
||||
<span class="k">return</span> <span class="nx">require</span> <span class="s1">'./repl'</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">'--'</span>
|
||||
<span class="nv">flags = </span><span class="p">[]</span>
|
||||
<span class="k">if</span> <span class="nx">separator</span> <span class="o">>=</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="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">run</span>
|
||||
<span class="nv">flags = </span><span class="nx">sources</span><span class="p">[</span><span class="mi">1</span><span class="p">..</span><span class="nx">sources</span><span class="p">.</span><span class="nx">length</span><span class="p">].</span><span class="nx">concat</span> <span class="nx">flags</span>
|
||||
<span class="nv">sources = </span><span class="p">[</span><span class="nx">sources</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span>
|
||||
<span class="nv">process.ARGV = process.argv = </span><span class="nx">flags</span>
|
||||
<span class="nx">compileScripts</span><span class="p">()</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-7">#</a> </div> <p>Asynchronously read in each CoffeeScript in a list of source files and
|
||||
compile them. If a directory is passed, recursively compile all
|
||||
'.coffee' extension source files in it and all subdirectories.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">compileScripts = </span><span class="o">-></span>
|
||||
<span class="k">for</span> <span class="nx">source</span> <span class="k">in</span> <span class="nx">sources</span>
|
||||
<span class="nv">base = </span><span class="nx">source</span>
|
||||
<span class="nv">compile = </span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">topLevel</span><span class="p">)</span> <span class="o">-></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">-></span>
|
||||
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">"File not found: #source"</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">-></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">-></span>
|
||||
<span class="k">for</span> <span class="nx">file</span> <span class="k">in</span> <span class="nx">files</span>
|
||||
<span class="nx">compile</span> <span class="nx">path</span><span class="p">.</span><span class="nx">join</span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">file</span><span class="p">)</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">topLevel</span> <span class="o">or</span> <span class="nx">path</span><span class="p">.</span><span class="nx">extname</span><span class="p">(</span><span class="nx">source</span><span class="p">)</span> <span class="o">is</span> <span class="s1">'.coffee'</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">-></span> <span class="nx">compileScript</span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">code</span><span class="p">.</span><span class="nx">toString</span><span class="p">(),</span> <span class="nx">base</span><span class="p">)</span>
|
||||
<span class="nx">watch</span> <span class="nx">source</span><span class="p">,</span> <span class="nx">base</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">watch</span>
|
||||
<span class="nx">compile</span> <span class="nx">source</span><span class="p">,</span> <span class="kc">true</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-8">#</a> </div> <p>Compile a single source script, containing the given code, according to the
|
||||
requested options. If evaluating the script directly sets <code>__filename</code>,
|
||||
<code>__dirname</code> and <code>module.filename</code> to be correct relative to the script's path.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">compileScript = </span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">base</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">o = </span><span class="nx">options</span>
|
||||
<span class="nv">codeOpts = </span><span class="nx">compileOptions</span> <span class="nx">source</span>
|
||||
<span class="k">try</span>
|
||||
<span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">tokens</span> <span class="k">then</span> <span class="nx">printTokens</span> <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">tokens</span> <span class="nx">code</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">nodes</span> <span class="k">then</span> <span class="nx">puts</span> <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">nodes</span><span class="p">(</span><span class="nx">code</span><span class="p">).</span><span class="nx">toString</span><span class="p">()</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">run</span> <span class="k">then</span> <span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">codeOpts</span>
|
||||
<span class="k">else</span>
|
||||
<span class="nv">js = </span><span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">compile</span> <span class="nx">code</span><span class="p">,</span> <span class="nx">codeOpts</span>
|
||||
<span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">print</span> <span class="k">then</span> <span class="nx">print</span> <span class="nx">js</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">compile</span> <span class="k">then</span> <span class="nx">writeJs</span> <span class="nx">source</span><span class="p">,</span> <span class="nx">js</span><span class="p">,</span> <span class="nx">base</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">lint</span> <span class="k">then</span> <span class="nx">lint</span> <span class="nx">js</span>
|
||||
<span class="k">catch</span> <span class="nx">err</span>
|
||||
<span class="nx">error</span><span class="p">(</span><span class="nx">err</span><span class="p">.</span><span class="nx">stack</span><span class="p">)</span> <span class="o">and</span> <span class="nx">process</span><span class="p">.</span><span class="nx">exit</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">o</span><span class="p">.</span><span class="nx">watch</span>
|
||||
<span class="nx">puts</span> <span class="nx">err</span><span class="p">.</span><span class="nx">message</span></pre></div> </td> </tr> <tr id="section-9"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-9">#</a> </div> <p>Attach the appropriate listeners to compile scripts incoming over <strong>stdin</strong>,
|
||||
and write them back to <strong>stdout</strong>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">compileStdio = </span><span class="o">-></span>
|
||||
<span class="nv">code = </span><span class="s1">''</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="kc">on</span> <span class="s1">'data'</span><span class="p">,</span> <span class="p">(</span><span class="nx">buffer</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">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="kc">on</span> <span class="s1">'end'</span><span class="p">,</span> <span class="o">-></span>
|
||||
<span class="nx">compileScript</span> <span class="s1">'stdio'</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">-></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="nx">persistent</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">interval</span><span class="o">:</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">-></span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">curr</span><span class="p">.</span><span class="nx">mtime</span><span class="p">.</span><span class="nx">getTime</span><span class="p">()</span> <span class="o">is</span> <span class="nx">prev</span><span class="p">.</span><span class="nx">mtime</span><span class="p">.</span><span class="nx">getTime</span><span class="p">()</span>
|
||||
<span class="nx">fs</span><span class="p">.</span><span class="nx">readFile</span> <span class="nx">source</span><span class="p">,</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">code</span><span class="p">)</span> <span class="o">-></span> <span class="nx">compileScript</span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">code</span><span class="p">.</span><span class="nx">toString</span><span class="p">(),</span> <span class="nx">base</span><span class="p">)</span></pre></div> </td> </tr> <tr id="section-11"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-11">#</a> </div> <p>Write out a JavaScript source file with the compiled code. By default, files
|
||||
are written out in <code>cwd</code> as <code>.js</code> files with the same name, but the output
|
||||
directory can be customized with <code>--output</code>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">writeJs = </span><span class="p">(</span><span class="nx">source</span><span class="p">,</span> <span class="nx">js</span><span class="p">,</span> <span class="nx">base</span><span class="p">)</span> <span class="o">-></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">'.js'</span>
|
||||
<span class="nv">srcDir = </span><span class="nx">path</span><span class="p">.</span><span class="nx">dirname</span> <span class="nx">source</span>
|
||||
<span class="nv">baseDir = </span><span class="nx">srcDir</span><span class="p">.</span><span class="nx">substring</span> <span class="nx">base</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="nv">dir = </span><span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">output</span> <span class="k">then</span> <span class="nx">path</span><span class="p">.</span><span class="nx">join</span> <span class="nx">options</span><span class="p">.</span><span class="nx">output</span><span class="p">,</span> <span class="nx">baseDir</span> <span class="k">else</span> <span class="nx">srcDir</span>
|
||||
<span class="nv">jsPath = </span><span class="nx">path</span><span class="p">.</span><span class="nx">join</span> <span class="nx">dir</span><span class="p">,</span> <span class="nx">filename</span>
|
||||
<span class="nv">compile = </span><span class="o">-></span>
|
||||
<span class="k">return</span> <span class="nx">unless</span> <span class="nx">js</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="nx">fs</span><span class="p">.</span><span class="nx">writeFile</span> <span class="nx">jsPath</span><span class="p">,</span> <span class="nx">js</span><span class="p">,</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">puts</span> <span class="s2">"Compiled #source"</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">compile</span> <span class="o">and</span> <span class="nx">options</span><span class="p">.</span><span class="nx">watch</span>
|
||||
<span class="nx">path</span><span class="p">.</span><span class="nx">exists</span> <span class="nx">dir</span><span class="p">,</span> <span class="p">(</span><span class="nx">exists</span><span class="p">)</span> <span class="o">-></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">"mkdir -p #dir"</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">-></span>
|
||||
<span class="nv">printIt = </span><span class="p">(</span><span class="nx">buffer</span><span class="p">)</span> <span class="o">-></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">'jsl'</span><span class="p">,</span> <span class="p">[</span><span class="s1">'-nologo'</span><span class="p">,</span> <span class="s1">'-stdin'</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="kc">on</span> <span class="s1">'data'</span><span class="p">,</span> <span class="nx">printIt</span>
|
||||
<span class="nx">jsl</span><span class="p">.</span><span class="nx">stderr</span><span class="p">.</span><span class="kc">on</span> <span class="s1">'data'</span><span class="p">,</span> <span class="nx">printIt</span>
|
||||
<span class="nx">jsl</span><span class="p">.</span><span class="nx">stdin</span><span class="p">.</span><span class="nx">write</span> <span class="nx">js</span>
|
||||
<span class="nx">jsl</span><span class="p">.</span><span class="nx">stdin</span><span class="p">.</span><span class="nx">end</span><span class="p">()</span></pre></div> </td> </tr> <tr id="section-13"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-13">#</a> </div> <p>Pretty-print a stream of tokens.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">printTokens = </span><span class="p">(</span><span class="nx">tokens</span><span class="p">)</span> <span class="o">-></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">'\\n'</span><span class="p">)]</span>
|
||||
<span class="s2">"[#tag #value]"</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">' '</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">parseOptions = </span><span class="o">-></span>
|
||||
<span class="nv">optionParser = </span><span class="k">new</span> <span class="nx">optparse</span><span class="p">.</span><span class="nx">OptionParser</span> <span class="nx">SWITCHES</span><span class="p">,</span> <span class="nx">BANNER</span>
|
||||
<span class="nv">o = options = </span><span class="nx">optionParser</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">process</span><span class="p">.</span><span class="nx">argv</span><span class="p">[</span><span class="mi">2</span><span class="p">...</span><span class="nx">process</span><span class="p">.</span><span class="nx">argv</span><span class="p">.</span><span class="nx">length</span><span class="p">])</span>
|
||||
<span class="nx">options</span><span class="p">.</span><span class="nx">compile</span> <span class="o">or=</span> <span class="o">!!</span><span class="nx">o</span><span class="p">.</span><span class="nx">output</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></pre></div> </td> </tr> <tr id="section-15"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-15">#</a> </div> <p>The compile-time options to pass to the CoffeeScript compiler.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">compileOptions = </span><span class="p">(</span><span class="nx">fileName</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">o = </span><span class="p">{</span><span class="nx">fileName</span><span class="p">}</span>
|
||||
<span class="nv">o.noWrap = </span><span class="nx">options</span><span class="p">[</span><span class="s1">'no-wrap'</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">-></span>
|
||||
<span class="nx">puts</span> <span class="nx">optionParser</span><span class="p">.</span><span class="nx">help</span><span class="p">()</span>
|
||||
<span class="nx">process</span><span class="p">.</span><span class="nx">exit</span> <span class="mi">0</span></pre></div> </td> </tr> <tr id="section-17"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-17">#</a> </div> <p>Print the <code>--version</code> message and exit.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">version = </span><span class="o">-></span>
|
||||
<span class="nx">puts</span> <span class="s2">"CoffeeScript version #CoffeeScript.VERSION"</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>
|
||||
@@ -1,185 +0,0 @@
|
||||
/*--------------------- Layout and Typography ----------------------------*/
|
||||
body {
|
||||
font-family: 'Palatino Linotype', 'Book Antiqua', Palatino, FreeSerif, serif;
|
||||
font-size: 16px;
|
||||
line-height: 24px;
|
||||
color: #252519;
|
||||
margin: 0; padding: 0;
|
||||
}
|
||||
a {
|
||||
color: #261a3b;
|
||||
}
|
||||
a:visited {
|
||||
color: #261a3b;
|
||||
}
|
||||
p {
|
||||
margin: 0 0 15px 0;
|
||||
}
|
||||
h1, h2, h3, h4, h5, h6 {
|
||||
margin: 40px 0 15px 0;
|
||||
}
|
||||
h3, h4, h5, h6 {
|
||||
margin-top: 20px;
|
||||
}
|
||||
#container {
|
||||
position: relative;
|
||||
}
|
||||
#background {
|
||||
position: fixed;
|
||||
top: 0; left: 580px; right: 0; bottom: 0;
|
||||
background: #f5f5ff;
|
||||
border-left: 1px solid #e5e5ee;
|
||||
z-index: -1;
|
||||
}
|
||||
#jump_to, #jump_page {
|
||||
background: white;
|
||||
-webkit-box-shadow: 0 0 25px #777; -moz-box-shadow: 0 0 25px #777;
|
||||
-webkit-border-bottom-left-radius: 5px; -moz-border-radius-bottomleft: 5px;
|
||||
font: 10px Arial;
|
||||
text-transform: uppercase;
|
||||
cursor: pointer;
|
||||
text-align: right;
|
||||
}
|
||||
#jump_to, #jump_wrapper {
|
||||
position: fixed;
|
||||
right: 0; top: 0;
|
||||
padding: 5px 10px;
|
||||
}
|
||||
#jump_wrapper {
|
||||
padding: 0;
|
||||
display: none;
|
||||
}
|
||||
#jump_to:hover #jump_wrapper {
|
||||
display: block;
|
||||
}
|
||||
#jump_page {
|
||||
padding: 5px 0 3px;
|
||||
margin: 0 0 25px 25px;
|
||||
}
|
||||
#jump_page .source {
|
||||
display: block;
|
||||
padding: 5px 10px;
|
||||
text-decoration: none;
|
||||
border-top: 1px solid #eee;
|
||||
}
|
||||
#jump_page .source:hover {
|
||||
background: #f5f5ff;
|
||||
}
|
||||
#jump_page .source:first-child {
|
||||
}
|
||||
table td {
|
||||
border: 0;
|
||||
outline: 0;
|
||||
}
|
||||
td.docs, th.docs {
|
||||
max-width: 500px;
|
||||
min-width: 500px;
|
||||
min-height: 5px;
|
||||
padding: 10px 25px 1px 50px;
|
||||
vertical-align: top;
|
||||
text-align: left;
|
||||
}
|
||||
.docs pre {
|
||||
margin: 15px 0 15px;
|
||||
padding-left: 15px;
|
||||
}
|
||||
.docs p tt, .docs p code {
|
||||
background: #f8f8ff;
|
||||
border: 1px solid #dedede;
|
||||
font-size: 12px;
|
||||
padding: 0 0.2em;
|
||||
}
|
||||
.octowrap {
|
||||
position: relative;
|
||||
}
|
||||
.octothorpe {
|
||||
font: 12px Arial;
|
||||
text-decoration: none;
|
||||
color: #454545;
|
||||
position: absolute;
|
||||
top: 3px; left: -20px;
|
||||
padding: 1px 2px;
|
||||
opacity: 0;
|
||||
-webkit-transition: opacity 0.2s linear;
|
||||
}
|
||||
td.docs:hover .octothorpe {
|
||||
opacity: 1;
|
||||
}
|
||||
td.code, th.code {
|
||||
padding: 14px 15px 16px 50px;
|
||||
width: 100%;
|
||||
vertical-align: top;
|
||||
background: #f5f5ff;
|
||||
border-left: 1px solid #e5e5ee;
|
||||
}
|
||||
pre, tt, code {
|
||||
font-size: 12px; line-height: 18px;
|
||||
font-family: Monaco, Consolas, "Lucida Console", monospace;
|
||||
margin: 0; padding: 0;
|
||||
}
|
||||
|
||||
|
||||
/*---------------------- Syntax Highlighting -----------------------------*/
|
||||
td.linenos { background-color: #f0f0f0; padding-right: 10px; }
|
||||
span.lineno { background-color: #f0f0f0; padding: 0 5px 0 5px; }
|
||||
body .hll { background-color: #ffffcc }
|
||||
body .c { color: #408080; font-style: italic } /* Comment */
|
||||
body .err { border: 1px solid #FF0000 } /* Error */
|
||||
body .k { color: #954121 } /* Keyword */
|
||||
body .o { color: #666666 } /* Operator */
|
||||
body .cm { color: #408080; font-style: italic } /* Comment.Multiline */
|
||||
body .cp { color: #BC7A00 } /* Comment.Preproc */
|
||||
body .c1 { color: #408080; font-style: italic } /* Comment.Single */
|
||||
body .cs { color: #408080; font-style: italic } /* Comment.Special */
|
||||
body .gd { color: #A00000 } /* Generic.Deleted */
|
||||
body .ge { font-style: italic } /* Generic.Emph */
|
||||
body .gr { color: #FF0000 } /* Generic.Error */
|
||||
body .gh { color: #000080; font-weight: bold } /* Generic.Heading */
|
||||
body .gi { color: #00A000 } /* Generic.Inserted */
|
||||
body .go { color: #808080 } /* Generic.Output */
|
||||
body .gp { color: #000080; font-weight: bold } /* Generic.Prompt */
|
||||
body .gs { font-weight: bold } /* Generic.Strong */
|
||||
body .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
|
||||
body .gt { color: #0040D0 } /* Generic.Traceback */
|
||||
body .kc { color: #954121 } /* Keyword.Constant */
|
||||
body .kd { color: #954121; font-weight: bold } /* Keyword.Declaration */
|
||||
body .kn { color: #954121; font-weight: bold } /* Keyword.Namespace */
|
||||
body .kp { color: #954121 } /* Keyword.Pseudo */
|
||||
body .kr { color: #954121; font-weight: bold } /* Keyword.Reserved */
|
||||
body .kt { color: #B00040 } /* Keyword.Type */
|
||||
body .m { color: #666666 } /* Literal.Number */
|
||||
body .s { color: #219161 } /* Literal.String */
|
||||
body .na { color: #7D9029 } /* Name.Attribute */
|
||||
body .nb { color: #954121 } /* Name.Builtin */
|
||||
body .nc { color: #0000FF; font-weight: bold } /* Name.Class */
|
||||
body .no { color: #880000 } /* Name.Constant */
|
||||
body .nd { color: #AA22FF } /* Name.Decorator */
|
||||
body .ni { color: #999999; font-weight: bold } /* Name.Entity */
|
||||
body .ne { color: #D2413A; font-weight: bold } /* Name.Exception */
|
||||
body .nf { color: #0000FF } /* Name.Function */
|
||||
body .nl { color: #A0A000 } /* Name.Label */
|
||||
body .nn { color: #0000FF; font-weight: bold } /* Name.Namespace */
|
||||
body .nt { color: #954121; font-weight: bold } /* Name.Tag */
|
||||
body .nv { color: #19469D } /* Name.Variable */
|
||||
body .ow { color: #AA22FF; font-weight: bold } /* Operator.Word */
|
||||
body .w { color: #bbbbbb } /* Text.Whitespace */
|
||||
body .mf { color: #666666 } /* Literal.Number.Float */
|
||||
body .mh { color: #666666 } /* Literal.Number.Hex */
|
||||
body .mi { color: #666666 } /* Literal.Number.Integer */
|
||||
body .mo { color: #666666 } /* Literal.Number.Oct */
|
||||
body .sb { color: #219161 } /* Literal.String.Backtick */
|
||||
body .sc { color: #219161 } /* Literal.String.Char */
|
||||
body .sd { color: #219161; font-style: italic } /* Literal.String.Doc */
|
||||
body .s2 { color: #219161 } /* Literal.String.Double */
|
||||
body .se { color: #BB6622; font-weight: bold } /* Literal.String.Escape */
|
||||
body .sh { color: #219161 } /* Literal.String.Heredoc */
|
||||
body .si { color: #BB6688; font-weight: bold } /* Literal.String.Interpol */
|
||||
body .sx { color: #954121 } /* Literal.String.Other */
|
||||
body .sr { color: #BB6688 } /* Literal.String.Regex */
|
||||
body .s1 { color: #219161 } /* Literal.String.Single */
|
||||
body .ss { color: #19469D } /* Literal.String.Symbol */
|
||||
body .bp { color: #954121 } /* Name.Builtin.Pseudo */
|
||||
body .vc { color: #19469D } /* Name.Variable.Class */
|
||||
body .vg { color: #19469D } /* Name.Variable.Global */
|
||||
body .vi { color: #19469D } /* Name.Variable.Instance */
|
||||
body .il { color: #666666 } /* Literal.Number.Integer.Long */
|
||||
@@ -1,432 +0,0 @@
|
||||
<!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 … <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">'jison'</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">patternString</span><span class="p">,</span> <span class="nx">action</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="nx">patternString</span><span class="p">,</span> <span class="s1">'$$ = $1;'</span><span class="p">,</span> <span class="nx">options</span><span class="p">]</span> <span class="nx">unless</span> <span class="nx">action</span>
|
||||
<span class="nv">action = </span><span class="k">if</span> <span class="nv">match = </span><span class="p">(</span><span class="nx">action</span> <span class="o">+</span> <span class="s1">''</span><span class="p">).</span><span class="nx">match</span><span class="p">(</span><span class="nx">unwrap</span><span class="p">)</span> <span class="k">then</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="k">else</span> <span class="s2">"(#action())"</span>
|
||||
<span class="p">[</span><span class="nx">patternString</span><span class="p">,</span> <span class="s2">"$$ = #action;"</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></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="nx">Root</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">Expressions</span>
|
||||
<span class="nx">o</span> <span class="s2">"TERMINATOR"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">Expressions</span>
|
||||
<span class="nx">o</span> <span class="s2">"Body"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Block TERMINATOR"</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="nx">Body</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Line"</span><span class="p">,</span> <span class="o">-></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">"Body TERMINATOR Line"</span><span class="p">,</span> <span class="o">-></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">"Body TERMINATOR"</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="nx">Line</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Statement"</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="nx">Statement</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Return"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Throw"</span>
|
||||
<span class="nx">o</span> <span class="s2">"BREAK"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"CONTINUE"</span><span class="p">,</span> <span class="o">-></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="nx">Expression</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Value"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Call"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Code"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Operation"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Assign"</span>
|
||||
<span class="nx">o</span> <span class="s2">"If"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Try"</span>
|
||||
<span class="nx">o</span> <span class="s2">"While"</span>
|
||||
<span class="nx">o</span> <span class="s2">"For"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Switch"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Extends"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Class"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Splat"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Existence"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Comment"</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="nx">Block</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"INDENT Body OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"INDENT OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">Expressions</span>
|
||||
<span class="nx">o</span> <span class="s2">"TERMINATOR Comment"</span><span class="p">,</span> <span class="o">-></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="nx">Identifier</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"IDENTIFIER"</span><span class="p">,</span> <span class="o">-></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="nx">AlphaNumeric</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"NUMBER"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"STRING"</span><span class="p">,</span> <span class="o">-></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="nx">Literal</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"AlphaNumeric"</span>
|
||||
<span class="nx">o</span> <span class="s2">"JS"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"REGEX"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"TRUE"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"FALSE"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">false</span>
|
||||
<span class="nx">o</span> <span class="s2">"YES"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"NO"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">false</span>
|
||||
<span class="nx">o</span> <span class="s2">"ON"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"OFF"</span><span class="p">,</span> <span class="o">-></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="nx">Assign</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Assignable = Expression"</span><span class="p">,</span> <span class="o">-></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="nx">o</span> <span class="s2">"Assignable = INDENT Expression OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AssignNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</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="nx">AssignObj</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Identifier"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"AlphaNumeric"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Identifier : Expression"</span><span class="p">,</span> <span class="o">-></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">'object'</span>
|
||||
<span class="nx">o</span> <span class="s2">"AlphaNumeric : Expression"</span><span class="p">,</span> <span class="o">-></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">'object'</span>
|
||||
<span class="nx">o</span> <span class="s2">"Identifier : INDENT Expression OUTDENT"</span><span class="p">,</span> <span class="o">-></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">$4</span><span class="p">,</span> <span class="s1">'object'</span>
|
||||
<span class="nx">o</span> <span class="s2">"AlphaNumeric : INDENT Expression OUTDENT"</span><span class="p">,</span> <span class="o">-></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">$4</span><span class="p">,</span> <span class="s1">'object'</span>
|
||||
<span class="nx">o</span> <span class="s2">"Comment"</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="nx">Return</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"RETURN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ReturnNode</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"RETURN"</span><span class="p">,</span> <span class="o">-></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">'null'</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-20"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-20">#</a> </div> <p>A block comment.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Comment</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"HERECOMMENT"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">CommentNode</span> <span class="nx">$1</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-21"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-21">#</a> </div> <p><a href="http://jashkenas.github.com/coffee-script/#existence">The existential operator</a>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Existence</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression ?"</span><span class="p">,</span> <span class="o">-></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="nx">Code</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"PARAM_START ParamList PARAM_END FuncGlyph Block"</span><span class="p">,</span> <span class="o">-></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">"FuncGlyph Block"</span><span class="p">,</span> <span class="o">-></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>-></code> is for ordinary
|
||||
functions, and <code>=></code> is for functions bound to the current value of <em>this</em>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">FuncGlyph</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"->"</span><span class="p">,</span> <span class="o">-></span> <span class="s1">'func'</span>
|
||||
<span class="nx">o</span> <span class="s2">"=>"</span><span class="p">,</span> <span class="o">-></span> <span class="s1">'boundfunc'</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="nx">OptComma</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s1">''</span>
|
||||
<span class="nx">o</span> <span class="s1">','</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="nx">ParamList</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="p">[]</span>
|
||||
<span class="nx">o</span> <span class="s2">"Param"</span><span class="p">,</span> <span class="o">-></span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"ParamList , Param"</span><span class="p">,</span> <span class="o">-></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="nx">Param</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"PARAM"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"@ PARAM"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ParamNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"PARAM . . ."</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ParamNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="kc">false</span><span class="p">,</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"@ PARAM . . ."</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ParamNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="kc">true</span><span class="p">,</span> <span class="kc">true</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="nx">Splat</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression . . ."</span><span class="p">,</span> <span class="o">-></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="nx">SimpleAssignable</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Identifier"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"Value Accessor"</span><span class="p">,</span> <span class="o">-></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">"Invocation Accessor"</span><span class="p">,</span> <span class="o">-></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">"ThisProperty"</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="nx">Assignable</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"SimpleAssignable"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Array"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"Object"</span><span class="p">,</span> <span class="o">-></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="nx">Value</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Assignable"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Literal"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"Parenthetical"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"Range"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"This"</span>
|
||||
<span class="nx">o</span> <span class="s2">"NULL"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">'null'</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="nx">Accessor</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"PROPERTY_ACCESS Identifier"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AccessorNode</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"PROTOTYPE_ACCESS Identifier"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AccessorNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="s1">'prototype'</span>
|
||||
<span class="nx">o</span> <span class="s2">"::"</span><span class="p">,</span> <span class="o">-></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">'prototype'</span><span class="p">))</span>
|
||||
<span class="nx">o</span> <span class="s2">"SOAK_ACCESS Identifier"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">AccessorNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="s1">'soak'</span>
|
||||
<span class="nx">o</span> <span class="s2">"Index"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Slice"</span><span class="p">,</span> <span class="o">-></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="nx">Index</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"INDEX_START Expression INDEX_END"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">IndexNode</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"INDEX_SOAK Index"</span><span class="p">,</span> <span class="o">-></span> <span class="nv">$2.soakNode = </span><span class="kc">yes</span><span class="p">;</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"INDEX_PROTO Index"</span><span class="p">,</span> <span class="o">-></span> <span class="nv">$2.proto = </span><span class="kc">yes</span><span class="p">;</span> <span class="nx">$2</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-33"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-33">#</a> </div> <p>In CoffeeScript, an object literal is simply a list of assignments.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nb">Object</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"{ AssignList OptComma }"</span><span class="p">,</span> <span class="o">-></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="nx">AssignList</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="p">[]</span>
|
||||
<span class="nx">o</span> <span class="s2">"AssignObj"</span><span class="p">,</span> <span class="o">-></span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"AssignList , AssignObj"</span><span class="p">,</span> <span class="o">-></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">"AssignList OptComma TERMINATOR AssignObj"</span><span class="p">,</span> <span class="o">-></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">"AssignList OptComma INDENT AssignList OptComma OUTDENT"</span><span class="p">,</span> <span class="o">-></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="nx">Class</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"CLASS SimpleAssignable EXTENDS Value"</span><span class="p">,</span> <span class="o">-></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">"CLASS SimpleAssignable INDENT ClassBody OUTDENT"</span><span class="p">,</span> <span class="o">-></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">"CLASS SimpleAssignable EXTENDS Value INDENT ClassBody OUTDENT"</span><span class="p">,</span> <span class="o">-></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="nx">o</span> <span class="s2">"CLASS INDENT ClassBody OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ClassNode</span> <span class="s1">'__temp__'</span><span class="p">,</span> <span class="kc">null</span><span class="p">,</span> <span class="nx">$3</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="nx">ClassAssign</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"AssignObj"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"ThisProperty : Expression"</span><span class="p">,</span> <span class="o">-></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">'this'</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="nx">ClassBody</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="p">[]</span>
|
||||
<span class="nx">o</span> <span class="s2">"ClassAssign"</span><span class="p">,</span> <span class="o">-></span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"ClassBody TERMINATOR ClassAssign"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">$3</span>
|
||||
<span class="nx">o</span> <span class="s2">"{ ClassBody }"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</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="nx">Call</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Invocation"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Super"</span>
|
||||
<span class="nx">o</span> <span class="s2">"NEW Invocation"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span><span class="p">.</span><span class="nx">newInstance</span><span class="p">()</span>
|
||||
<span class="nx">o</span> <span class="s2">"NEW Value"</span><span class="p">,</span> <span class="o">-></span> <span class="p">(</span><span class="k">new</span> <span class="nx">CallNode</span><span class="p">(</span><span class="nx">$2</span><span class="p">,</span> <span class="p">[])).</span><span class="nx">newInstance</span><span class="p">()</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-39"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-39">#</a> </div> <p>Extending an object by setting its prototype chain to reference a parent
|
||||
object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Extends</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"SimpleAssignable EXTENDS Value"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ExtendsNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-40"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-40">#</a> </div> <p>Ordinary function invocation, or a chained series of calls.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Invocation</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Value Arguments"</span><span class="p">,</span> <span class="o">-></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">"Invocation Arguments"</span><span class="p">,</span> <span class="o">-></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-41"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-41">#</a> </div> <p>The list of arguments to a function call.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Arguments</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"CALL_START ArgList OptComma CALL_END"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-42"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-42">#</a> </div> <p>Calling super.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Super</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"SUPER"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="s1">'super'</span><span class="p">,</span> <span class="p">[</span><span class="k">new</span> <span class="nx">SplatNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">LiteralNode</span><span class="p">(</span><span class="s1">'arguments'</span><span class="p">))]</span>
|
||||
<span class="nx">o</span> <span class="s2">"SUPER Arguments"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">CallNode</span> <span class="s1">'super'</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-43"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-43">#</a> </div> <p>A reference to the <em>this</em> current object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">This</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"THIS"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">'this'</span>
|
||||
<span class="nx">o</span> <span class="s2">"@"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">'this'</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-44"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-44">#</a> </div> <p>A reference to a property on <em>this</em>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">ThisProperty</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"@ Identifier"</span><span class="p">,</span> <span class="o">-></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">'this'</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-45"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-45">#</a> </div> <p>The CoffeeScript range literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Range</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"[ Expression . . Expression ]"</span><span class="p">,</span> <span class="o">-></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">"[ Expression . . . Expression ]"</span><span class="p">,</span> <span class="o">-></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-46"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-46">#</a> </div> <p>The slice literal.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Slice</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"INDEX_START Expression . . Expression INDEX_END"</span><span class="p">,</span> <span class="o">-></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">"INDEX_START Expression . . . Expression INDEX_END"</span><span class="p">,</span> <span class="o">-></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 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">"[ ArgList OptComma ]"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ArrayNode</span> <span class="nx">$2</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-48"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-48">#</a> </div> <p>The <strong>ArgList</strong> is both the list of objects passed into a function call,
|
||||
as well as the contents of an array literal
|
||||
(i.e. comma-separated expressions). Newlines work as well.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">ArgList</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">""</span><span class="p">,</span> <span class="o">-></span> <span class="p">[]</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"ArgList , Expression"</span><span class="p">,</span> <span class="o">-></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">"ArgList OptComma TERMINATOR Expression"</span><span class="p">,</span> <span class="o">-></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">"ArgList OptComma INDENT ArgList OptComma OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">concat</span> <span class="nx">$4</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-49"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-49">#</a> </div> <p>Just simple, comma-separated, required arguments (no fancy syntax). We need
|
||||
this to be separate from the <strong>ArgList</strong> for use in <strong>Switch</strong> blocks, where
|
||||
having the newlines wouldn't make sense.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">SimpleArgs</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression"</span>
|
||||
<span class="nx">o</span> <span class="s2">"SimpleArgs , Expression"</span><span class="p">,</span> <span class="o">-></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-50"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-50">#</a> </div> <p>The variants of <em>try/catch/finally</em> exception handling blocks.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Try</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"TRY Block Catch"</span><span class="p">,</span> <span class="o">-></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">"TRY Block FINALLY Block"</span><span class="p">,</span> <span class="o">-></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">"TRY Block Catch FINALLY Block"</span><span class="p">,</span> <span class="o">-></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-51"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-51">#</a> </div> <p>A catch clause names its error and runs a block of code.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Catch</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"CATCH Identifier Block"</span><span class="p">,</span> <span class="o">-></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-52"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-52">#</a> </div> <p>Throw an exception object.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Throw</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"THROW Expression"</span><span class="p">,</span> <span class="o">-></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-53"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-53">#</a> </div> <p>Parenthetical expressions. Note that the <strong>Parenthetical</strong> is a <strong>Value</strong>,
|
||||
not an <strong>Expression</strong>, so if you need to use an expression in a place
|
||||
where only values are accepted, wrapping it in parentheses will always do
|
||||
the trick.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Parenthetical</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"( Line )"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="nx">$2</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-54"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-54">#</a> </div> <p>The condition portion of a while loop.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">WhileSource</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"WHILE Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"WHILE Expression WHEN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$4</span>
|
||||
<span class="nx">o</span> <span class="s2">"UNTIL Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"UNTIL Expression WHEN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">WhileNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$4</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-55"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-55">#</a> </div> <p>The while loop can either be normal, with a block of expressions to execute,
|
||||
or postfix, with a single expression. There is no do..while.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">While</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"WhileSource Block"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addBody</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"Statement WhileSource"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span><span class="p">.</span><span class="nx">addBody</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression WhileSource"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span><span class="p">.</span><span class="nx">addBody</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"Loop"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span>
|
||||
<span class="p">]</span>
|
||||
|
||||
<span class="nx">Loop</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"LOOP Block"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">WhileNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">'true'</span><span class="p">).</span><span class="nx">addBody</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"LOOP Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">WhileNode</span><span class="p">(</span><span class="k">new</span> <span class="nx">LiteralNode</span> <span class="s1">'true'</span><span class="p">).</span><span class="nx">addBody</span> <span class="nx">Expressions</span><span class="p">.</span><span class="nx">wrap</span> <span class="p">[</span><span class="nx">$2</span><span class="p">]</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-56"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-56">#</a> </div> <p>Array, object, and range comprehensions, at the most generic level.
|
||||
Comprehensions can either be normal, with a block of expressions to execute,
|
||||
or postfix, with a single expression.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">For</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Statement ForBody"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ForNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">vars</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="nx">vars</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression ForBody"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ForNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$2</span><span class="p">.</span><span class="nx">vars</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="nx">vars</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"ForBody Block"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ForNode</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">vars</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nx">$1</span><span class="p">.</span><span class="nx">vars</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
|
||||
<span class="p">]</span>
|
||||
|
||||
<span class="nx">ForBody</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"FOR Range"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">source</span><span class="o">:</span> <span class="k">new</span> <span class="nx">ValueNode</span><span class="p">(</span><span class="nx">$2</span><span class="p">),</span> <span class="nx">vars</span><span class="o">:</span> <span class="p">[]</span>
|
||||
<span class="nx">o</span> <span class="s2">"ForStart ForSource"</span><span class="p">,</span> <span class="o">-></span> <span class="nv">$2.raw = </span><span class="nx">$1</span><span class="p">.</span><span class="nx">raw</span><span class="p">;</span> <span class="nv">$2.vars = </span><span class="nx">$1</span><span class="p">;</span> <span class="nx">$2</span>
|
||||
<span class="p">]</span>
|
||||
|
||||
<span class="nx">ForStart</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"FOR ForVariables"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"FOR ALL ForVariables"</span><span class="p">,</span> <span class="o">-></span> <span class="nv">$3.raw = </span><span class="kc">true</span><span class="p">;</span> <span class="nx">$3</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-57"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-57">#</a> </div> <p>An 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="nx">ForValue</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"Identifier"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Array"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
|
||||
<span class="nx">o</span> <span class="s2">"Object"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">ValueNode</span> <span class="nx">$1</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-58"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-58">#</a> </div> <p>An array or range comprehension has variables for the current element and
|
||||
(optional) reference to the current index. Or, <em>key, value</em>, in the case
|
||||
of object comprehensions.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">ForVariables</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"ForValue"</span><span class="p">,</span> <span class="o">-></span> <span class="p">[</span><span class="nx">$1</span><span class="p">]</span>
|
||||
<span class="nx">o</span> <span class="s2">"ForValue , ForValue"</span><span class="p">,</span> <span class="o">-></span> <span class="p">[</span><span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span><span class="p">]</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-59"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-59">#</a> </div> <p>The source of a comprehension is an array or object with an optional guard
|
||||
clause. If it's an array comprehension, you can also choose to step through
|
||||
in fixed-size increments.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">ForSource</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"IN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"OF Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">object</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"IN Expression WHEN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$4</span>
|
||||
<span class="nx">o</span> <span class="s2">"OF Expression WHEN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">object</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"IN Expression BY Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">step</span><span class="o">:</span> <span class="nx">$4</span>
|
||||
<span class="nx">o</span> <span class="s2">"IN Expression WHEN Expression BY Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">step</span><span class="o">:</span> <span class="nx">$6</span>
|
||||
<span class="nx">o</span> <span class="s2">"IN Expression BY Expression WHEN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">source</span><span class="o">:</span> <span class="nx">$2</span><span class="p">,</span> <span class="nx">step</span><span class="o">:</span> <span class="nx">$4</span><span class="p">,</span> <span class="nx">guard</span><span class="o">:</span> <span class="nx">$6</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-60"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-60">#</a> </div> <p>The CoffeeScript switch/when/else block replaces the JavaScript
|
||||
switch/case/default by compiling into an if-else chain.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Switch</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"SWITCH Expression INDENT Whens OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$4</span><span class="p">.</span><span class="nx">switchesOver</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"SWITCH Expression INDENT Whens ELSE Block OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$4</span><span class="p">.</span><span class="nx">switchesOver</span><span class="p">(</span><span class="nx">$2</span><span class="p">).</span><span class="nx">addElse</span> <span class="nx">$6</span><span class="p">,</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"SWITCH INDENT Whens OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$3</span>
|
||||
<span class="nx">o</span> <span class="s2">"SWITCH INDENT Whens ELSE Block OUTDENT"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$3</span><span class="p">.</span><span class="nx">addElse</span> <span class="nx">$5</span><span class="p">,</span> <span class="kc">true</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-61"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-61">#</a> </div> <p>The inner list of whens is left recursive. At code-generation time, the
|
||||
IfNode will rewrite them into a proper chain.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">Whens</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"When"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Whens When"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addElse</span> <span class="nx">$2</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-62"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-62">#</a> </div> <p>An individual <strong>When</strong> clause, with action.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">When</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"LEADING_WHEN SimpleArgs Block"</span><span class="p">,</span> <span class="o">-></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="nx">statement</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"LEADING_WHEN SimpleArgs Block TERMINATOR"</span><span class="p">,</span> <span class="o">-></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="nx">statement</span><span class="o">:</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 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="nx">IfBlock</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"IF Expression Block"</span><span class="p">,</span> <span class="o">-></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">"UNLESS Expression Block"</span><span class="p">,</span> <span class="o">-></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="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"IfBlock ELSE IF Expression Block"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addElse</span> <span class="p">(</span><span class="k">new</span> <span class="nx">IfNode</span><span class="p">(</span><span class="nx">$4</span><span class="p">,</span> <span class="nx">$5</span><span class="p">)).</span><span class="nx">forceStatement</span><span class="p">()</span>
|
||||
<span class="nx">o</span> <span class="s2">"IfBlock ELSE Block"</span><span class="p">,</span> <span class="o">-></span> <span class="nx">$1</span><span class="p">.</span><span class="nx">addElse</span> <span class="nx">$3</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-64"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-64">#</a> </div> <p>The full complement of <em>if</em> expressions, including postfix one-liner
|
||||
<em>if</em> and <em>unless</em>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">If</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"IfBlock"</span>
|
||||
<span class="nx">o</span> <span class="s2">"Statement IF Expression"</span><span class="p">,</span> <span class="o">-></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="nx">statement</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression IF Expression"</span><span class="p">,</span> <span class="o">-></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="nx">statement</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"Statement UNLESS Expression"</span><span class="p">,</span> <span class="o">-></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="nx">statement</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression UNLESS Expression"</span><span class="p">,</span> <span class="o">-></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="nx">statement</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">invert</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-65"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-65">#</a> </div> <p>Arithmetic and logical operators, working on one or more operands.
|
||||
Here they are grouped by order of precedence. The actual precedence rules
|
||||
are defined at the bottom of the page. It would be shorter if we could
|
||||
combine most of these rules into a single generic <em>Operand OpSymbol Operand</em>
|
||||
-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="nx">Operation</span><span class="o">:</span> <span class="p">[</span>
|
||||
<span class="nx">o</span> <span class="s2">"! Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'!'</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"!! Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'!!'</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span><span class="p">(</span><span class="s2">"- Expression"</span><span class="p">,</span> <span class="p">(</span><span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span><span class="p">(</span><span class="s1">'-'</span><span class="p">,</span> <span class="nx">$2</span><span class="p">)),</span> <span class="p">{</span><span class="nx">prec</span><span class="o">:</span> <span class="s1">'UMINUS'</span><span class="p">})</span>
|
||||
<span class="nx">o</span><span class="p">(</span><span class="s2">"+ Expression"</span><span class="p">,</span> <span class="p">(</span><span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span><span class="p">(</span><span class="s1">'+'</span><span class="p">,</span> <span class="nx">$2</span><span class="p">)),</span> <span class="p">{</span><span class="nx">prec</span><span class="o">:</span> <span class="s1">'UPLUS'</span><span class="p">})</span>
|
||||
<span class="nx">o</span> <span class="s2">"~ Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'~'</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"-- Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'--'</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"++ Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'++'</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"DELETE Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'delete'</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"TYPEOF Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'typeof'</span><span class="p">,</span> <span class="nx">$2</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression --"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'--'</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">"Expression ++"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'++'</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">"Expression * Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'*'</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">"Expression / Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'/'</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">"Expression % Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'%'</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">"Expression + Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'+'</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">"Expression - Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'-'</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">"Expression << Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'<<'</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">"Expression >> Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'>>'</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">"Expression >>> Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'>>>'</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">"Expression & Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'&'</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">"Expression | Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'|'</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">"Expression ^ Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'^'</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">"Expression <= Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'<='</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">"Expression < Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'<'</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">"Expression > Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'>'</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">"Expression >= Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'>='</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">"Expression == Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'=='</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">"Expression != Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'!='</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">"Expression && Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'&&'</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">"Expression || Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'||'</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">"Expression OP? Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'?'</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">"Expression -= Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'-='</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">"Expression += Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'+='</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">"Expression /= Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'/='</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">"Expression *= Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'*='</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">"Expression %= Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'%='</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">"Expression ||= Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'||='</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">"Expression &&= Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'&&='</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">"Expression ?= Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'?='</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">"Expression INSTANCEOF Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'instanceof'</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">"Expression IN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">InNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$3</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression OF Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'in'</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">"Expression ! IN Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'!'</span><span class="p">,</span> <span class="k">new</span> <span class="nx">InNode</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</span>
|
||||
<span class="nx">o</span> <span class="s2">"Expression ! OF Expression"</span><span class="p">,</span> <span class="o">-></span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'!'</span><span class="p">,</span> <span class="k">new</span> <span class="nx">ParentheticalNode</span> <span class="k">new</span> <span class="nx">OpNode</span> <span class="s1">'in'</span><span class="p">,</span> <span class="nx">$1</span><span class="p">,</span> <span class="nx">$4</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> <h2>Precedence</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-67"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-67">#</a> </div> <p>Operators at the top of this list have higher precedence than the ones lower
|
||||
down. Following these rules is what makes <code>2 + 3 * 4</code> parse as:</p>
|
||||
|
||||
<pre><code>2 + (3 * 4)
|
||||
</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">"left"</span><span class="p">,</span> <span class="s1">'?'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"nonassoc"</span><span class="p">,</span> <span class="s1">'UMINUS'</span><span class="p">,</span> <span class="s1">'UPLUS'</span><span class="p">,</span> <span class="s1">'!'</span><span class="p">,</span> <span class="s1">'!!'</span><span class="p">,</span> <span class="s1">'~'</span><span class="p">,</span> <span class="s1">'++'</span><span class="p">,</span> <span class="s1">'--'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'*'</span><span class="p">,</span> <span class="s1">'/'</span><span class="p">,</span> <span class="s1">'%'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'+'</span><span class="p">,</span> <span class="s1">'-'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'<<'</span><span class="p">,</span> <span class="s1">'>>'</span><span class="p">,</span> <span class="s1">'>>>'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'&'</span><span class="p">,</span> <span class="s1">'|'</span><span class="p">,</span> <span class="s1">'^'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'<='</span><span class="p">,</span> <span class="s1">'<'</span><span class="p">,</span> <span class="s1">'>'</span><span class="p">,</span> <span class="s1">'>='</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"right"</span><span class="p">,</span> <span class="s1">'DELETE'</span><span class="p">,</span> <span class="s1">'INSTANCEOF'</span><span class="p">,</span> <span class="s1">'TYPEOF'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'=='</span><span class="p">,</span> <span class="s1">'!='</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'&&'</span><span class="p">,</span> <span class="s1">'||'</span><span class="p">,</span> <span class="s1">'OP?'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"right"</span><span class="p">,</span> <span class="s1">'-='</span><span class="p">,</span> <span class="s1">'+='</span><span class="p">,</span> <span class="s1">'/='</span><span class="p">,</span> <span class="s1">'*='</span><span class="p">,</span> <span class="s1">'%='</span><span class="p">,</span> <span class="s1">'||='</span><span class="p">,</span> <span class="s1">'&&='</span><span class="p">,</span> <span class="s1">'?='</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'.'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"right"</span><span class="p">,</span> <span class="s1">'INDENT'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'OUTDENT'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"right"</span><span class="p">,</span> <span class="s1">'WHEN'</span><span class="p">,</span> <span class="s1">'LEADING_WHEN'</span><span class="p">,</span> <span class="s1">'IN'</span><span class="p">,</span> <span class="s1">'OF'</span><span class="p">,</span> <span class="s1">'BY'</span><span class="p">,</span> <span class="s1">'THROW'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"right"</span><span class="p">,</span> <span class="s1">'FOR'</span><span class="p">,</span> <span class="s1">'WHILE'</span><span class="p">,</span> <span class="s1">'UNTIL'</span><span class="p">,</span> <span class="s1">'LOOP'</span><span class="p">,</span> <span class="s1">'NEW'</span><span class="p">,</span> <span class="s1">'SUPER'</span><span class="p">,</span> <span class="s1">'CLASS'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"left"</span><span class="p">,</span> <span class="s1">'EXTENDS'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"right"</span><span class="p">,</span> <span class="s1">'='</span><span class="p">,</span> <span class="s1">':'</span><span class="p">,</span> <span class="s1">'RETURN'</span><span class="p">]</span>
|
||||
<span class="p">[</span><span class="s2">"right"</span><span class="p">,</span> <span class="s1">'->'</span><span class="p">,</span> <span class="s1">'=>'</span><span class="p">,</span> <span class="s1">'UNLESS'</span><span class="p">,</span> <span class="s1">'IF'</span><span class="p">,</span> <span class="s1">'ELSE'</span><span class="p">]</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-68"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-68">#</a> </div> <h2>Wrapping Up</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-69"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-69">#</a> </div> <p>Finally, now what we have our <strong>grammar</strong> and our <strong>operators</strong>, we can create
|
||||
our <strong>Jison.Parser</strong>. We do this by processing all of our rules, recording all
|
||||
terminals (every symbol which does not appear as the name of a rule above)
|
||||
as "tokens".</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">tokens = </span><span class="p">[]</span>
|
||||
<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">' '</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">"return #{alt[1]}"</span> <span class="k">if</span> <span class="nx">name</span> <span class="o">is</span> <span class="s1">'Root'</span>
|
||||
<span class="nx">alt</span></pre></div> </td> </tr> <tr id="section-70"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-70">#</a> </div> <p>Initialize the <strong>Parser</strong> with our list of terminal <strong>tokens</strong>, our <strong>grammar</strong>
|
||||
rules, and the name of the root. Reverse the operators because Jison orders
|
||||
precedence from low to high, and we have it high to low
|
||||
(as in <a href="http://dinosaur.compilertools.net/yacc/index.html">Yacc</a>).</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.parser = </span><span class="k">new</span> <span class="nx">Parser</span> <span class="p">{</span>
|
||||
<span class="nx">tokens</span><span class="o">:</span> <span class="nx">tokens</span><span class="p">.</span><span class="nx">join</span> <span class="s1">' '</span>
|
||||
<span class="nx">bnf</span><span class="o">:</span> <span class="nx">grammar</span>
|
||||
<span class="nx">operators</span><span class="o">:</span> <span class="nx">operators</span><span class="p">.</span><span class="nx">reverse</span><span class="p">()</span>
|
||||
<span class="nx">startSymbol</span><span class="o">:</span> <span class="s1">'Root'</span>
|
||||
<span class="p">}</span>
|
||||
|
||||
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>
|
||||
@@ -1,38 +0,0 @@
|
||||
<!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 … <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.indexOf = indexOf = </span><span class="p">(</span><span class="nx">array</span><span class="p">,</span> <span class="nx">item</span><span class="p">,</span> <span class="nx">from</span><span class="p">)</span> <span class="o">-></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"><=</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">-></span>
|
||||
<span class="nx">indexOf</span><span class="p">(</span><span class="nx">list</span><span class="p">,</span> <span class="nx">value</span><span class="p">)</span> <span class="o">>=</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">-></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>Peek at the end of a given string to see if it matches a sequence.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">helpers.ends = ends = </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">back</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">start = </span><span class="nx">string</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="nx">literal</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="p">(</span><span class="nx">back</span> <span class="o">?</span> <span class="mi">0</span><span class="p">)</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="nx">start</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-7"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-7">#</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">-></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-8"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-8">#</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">-></span>
|
||||
<span class="nv">num = </span><span class="mi">0</span>
|
||||
<span class="nv">pos = </span><span class="nx">indexOf</span> <span class="nx">string</span><span class="p">,</span> <span class="nx">letter</span>
|
||||
<span class="k">while</span> <span class="nx">pos</span> <span class="o">isnt</span> <span class="o">-</span><span class="mi">1</span>
|
||||
<span class="nx">num</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="nv">pos = </span><span class="nx">indexOf</span> <span class="nx">string</span><span class="p">,</span> <span class="nx">letter</span><span class="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-9"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-9">#</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">-></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">all</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">all</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-10"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-10">#</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">-></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">all</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-11"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-11">#</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">-></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-12"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-12">#</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">-></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> </tbody> </table> </div> </body> </html>
|
||||
@@ -1,3 +0,0 @@
|
||||
<!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 … <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">'./coffee-script'</span>
|
||||
|
||||
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>
|
||||
@@ -1,430 +0,0 @@
|
||||
<!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 … <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, lineNumber]
|
||||
</code></pre>
|
||||
|
||||
<p>Which is a format that can be fed directly into <a href="http://github.com/zaach/jison">Jison</a>.</p> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-2">#</a> </div> <p>Set up the Lexer for both Node.js and the browser, depending on where we are.</p> </td> <td class="code"> <div class="highlight"><pre><span class="k">if</span> <span class="nx">process</span><span class="o">?</span>
|
||||
<span class="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">'./rewriter'</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">'./helpers'</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="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="nx">tokenize</span><span class="o">:</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">-></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">''</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're parsing.</span>
|
||||
<span class="vi">@line = </span><span class="nx">o</span><span class="p">.</span><span class="nx">line</span> <span class="o">or</span> <span class="mi">0</span> <span class="c1"># The current line.</span>
|
||||
<span class="vi">@indent = </span><span class="mi">0</span> <span class="c1"># The current indentation level.</span>
|
||||
<span class="vi">@outdebt = </span><span class="mi">0</span> <span class="c1"># The under-outdentation of the last outdent.</span>
|
||||
<span class="vi">@indents = </span><span class="p">[]</span> <span class="c1"># The stack of all current indentation levels.</span>
|
||||
<span class="vi">@tokens = </span><span class="p">[]</span> <span class="c1"># Stream of parsed tokens in the form ['TYPE', value, line]</span>
|
||||
<span class="k">while</span> <span class="nx">@i</span> <span class="o"><</span> <span class="nx">@code</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="vi">@chunk = </span><span class="nx">@code</span><span class="p">.</span><span class="nx">slice</span> <span class="nx">@i</span>
|
||||
<span class="nx">@extractNextToken</span><span class="p">()</span>
|
||||
<span class="nx">@closeIndentation</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="nx">@tokens</span> <span class="k">if</span> <span class="nx">o</span><span class="p">.</span><span class="nx">rewrite</span> <span class="o">is</span> <span class="kc">off</span>
|
||||
<span class="p">(</span><span class="k">new</span> <span class="nx">Rewriter</span><span class="p">).</span><span class="nx">rewrite</span> <span class="nx">@tokens</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-7">#</a> </div> <p>At every position, run through this list of attempted matches,
|
||||
short-circuiting if any of them succeed. Their order determines precedence:
|
||||
<code>@literalToken</code> is the fallback catch-all.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">extractNextToken</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">@identifierToken</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">@commentToken</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">@whitespaceToken</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">@lineToken</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">@heredocToken</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">@stringToken</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">@numberToken</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">@regexToken</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="k">if</span> <span class="nx">@jsToken</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="nx">@literalToken</span><span class="p">()</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-8">#</a> </div> <h2>Tokenizers</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-9"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-9">#</a> </div> <p>Matches identifying literals: variables, keywords, method names, etc.
|
||||
Check to ensure that JavaScript reserved words aren't being used as
|
||||
identifiers. Because CoffeeScript reserves a handful of keywords that are
|
||||
allowed in JavaScript, we're careful not to tag them as keywords when
|
||||
referenced as property names here, so you can still do <code>jQuery.is()</code> even
|
||||
though <code>is</code> means <code>===</code> otherwise.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">identifierToken</span><span class="o">:</span> <span class="o">-></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">@i</span> <span class="o">+=</span> <span class="nx">id</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="nv">forcedIdentifier = </span><span class="nx">@tagAccessor</span><span class="p">()</span> <span class="o">or</span> <span class="nx">@match</span> <span class="nx">ASSIGNED</span><span class="p">,</span> <span class="mi">1</span>
|
||||
<span class="nv">tag = </span><span class="s1">'IDENTIFIER'</span>
|
||||
<span class="nv">tag = </span><span class="nx">id</span><span class="p">.</span><span class="nx">toUpperCase</span><span class="p">()</span> <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">JS_KEYWORDS</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span> <span class="o">or</span> <span class="p">(</span><span class="o">not</span> <span class="nx">forcedIdentifier</span> <span class="o">and</span> <span class="nx">include</span><span class="p">(</span><span class="nx">COFFEE_KEYWORDS</span><span class="p">,</span> <span class="nx">id</span><span class="p">))</span>
|
||||
<span class="nv">tag = </span><span class="s1">'LEADING_WHEN'</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">'WHEN'</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="nv">tag = </span><span class="s1">'ALL'</span> <span class="k">if</span> <span class="nx">id</span> <span class="o">is</span> <span class="s1">'all'</span> <span class="o">and</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">'FOR'</span>
|
||||
<span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">JS_FORBIDDEN</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nx">forcedIdentifier</span>
|
||||
<span class="nv">tag = </span><span class="s1">'STRING'</span>
|
||||
<span class="nv">id = </span><span class="s2">"\"#id\""</span>
|
||||
<span class="k">if</span> <span class="nx">forcedIdentifier</span> <span class="o">is</span> <span class="s1">'accessor'</span>
|
||||
<span class="nv">close_index = </span><span class="kc">true</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span> <span class="k">if</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">isnt</span> <span class="s1">'@'</span>
|
||||
<span class="nx">@token</span> <span class="s1">'INDEX_START'</span><span class="p">,</span> <span class="s1">'['</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">RESERVED</span><span class="p">,</span> <span class="nx">id</span><span class="p">)</span>
|
||||
<span class="nx">@identifierError</span> <span class="nx">id</span>
|
||||
<span class="nx">unless</span> <span class="nx">forcedIdentifier</span>
|
||||
<span class="nv">tag = id = </span><span class="nx">CONVERSIONS</span><span class="p">[</span><span class="nx">id</span><span class="p">]</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">COFFEE_ALIASES</span><span class="p">,</span> <span class="nx">id</span>
|
||||
<span class="nx">@token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">id</span>
|
||||
<span class="nx">@token</span> <span class="s1">']'</span><span class="p">,</span> <span class="s1">']'</span> <span class="k">if</span> <span class="nx">close_index</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-10"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-10">#</a> </div> <p>Matches numbers, including decimals, hex, and exponential notation.
|
||||
Be careful not to interfere with ranges-in-progress.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">numberToken</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">number = </span><span class="nx">@match</span> <span class="nx">NUMBER</span><span class="p">,</span> <span class="mi">1</span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="k">if</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">'.'</span> <span class="o">and</span> <span class="nx">starts</span> <span class="nx">number</span><span class="p">,</span> <span class="s1">'.'</span>
|
||||
<span class="nx">@i</span> <span class="o">+=</span> <span class="nx">number</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="nx">@token</span> <span class="s1">'NUMBER'</span><span class="p">,</span> <span class="nx">number</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-11"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-11">#</a> </div> <p>Matches strings, including multi-line strings. Ensures that quotation marks
|
||||
are balanced within the string's contents, and within nested interpolations.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">stringToken</span><span class="o">:</span> <span class="o">-></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">'"'</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">"'"</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">@balancedToken</span><span class="p">([</span><span class="s1">'"'</span><span class="p">,</span> <span class="s1">'"'</span><span class="p">],</span> <span class="p">[</span><span class="s1">'#{'</span><span class="p">,</span> <span class="s1">'}'</span><span class="p">])</span> <span class="o">or</span>
|
||||
<span class="nx">@balancedToken</span> <span class="p">[</span><span class="s2">"'"</span><span class="p">,</span> <span class="s2">"'"</span><span class="p">]</span>
|
||||
<span class="nx">@interpolateString</span> <span class="nx">string</span><span class="p">.</span><span class="nx">replace</span> <span class="nx">STRING_NEWLINES</span><span class="p">,</span> <span class="s2">" \\\n"</span>
|
||||
<span class="nx">@line</span> <span class="o">+=</span> <span class="nx">count</span> <span class="nx">string</span><span class="p">,</span> <span class="s2">"\n"</span>
|
||||
<span class="nx">@i</span> <span class="o">+=</span> <span class="nx">string</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-12"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-12">#</a> </div> <p>Matches heredocs, adjusting indentation to the correct level, as heredocs
|
||||
preserve whitespace, but ignore indentation to the left.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">heredocToken</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">match = </span><span class="nx">@chunk</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">HEREDOC</span><span class="p">)</span>
|
||||
<span class="nv">quote = </span><span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">substr</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
|
||||
<span class="nv">doc = </span><span class="nx">@sanitizeHeredoc</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">or</span> <span class="nx">match</span><span class="p">[</span><span class="mi">4</span><span class="p">],</span> <span class="p">{</span><span class="nx">quote</span><span class="p">}</span>
|
||||
<span class="nx">@interpolateString</span> <span class="s2">"#quote#doc#quote"</span><span class="p">,</span> <span class="nx">heredoc</span><span class="o">:</span> <span class="kc">yes</span>
|
||||
<span class="nx">@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">"\n"</span>
|
||||
<span class="nx">@i</span> <span class="o">+=</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">length</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-13"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-13">#</a> </div> <p>Matches and conumes comments.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">commentToken</span><span class="o">:</span> <span class="o">-></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="nx">@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">"\n"</span>
|
||||
<span class="nx">@i</span> <span class="o">+=</span> <span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">].</span><span class="nx">length</span>
|
||||
<span class="k">if</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
|
||||
<span class="nv">comment = </span><span class="nx">@sanitizeHeredoc</span> <span class="nx">match</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="nx">herecomment</span><span class="o">:</span> <span class="kc">true</span>
|
||||
<span class="nx">@token</span> <span class="s1">'HERECOMMENT'</span><span class="p">,</span> <span class="nx">comment</span><span class="p">.</span><span class="nx">split</span> <span class="nx">MULTILINER</span>
|
||||
<span class="nx">@token</span> <span class="s1">'TERMINATOR'</span><span class="p">,</span> <span class="s1">'\n'</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-14"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-14">#</a> </div> <p>Matches JavaScript interpolated directly into the source via backticks.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">jsToken</span><span class="o">:</span> <span class="o">-></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">'`'</span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">script = </span><span class="nx">@balancedToken</span> <span class="p">[</span><span class="s1">'`'</span><span class="p">,</span> <span class="s1">'`'</span><span class="p">]</span>
|
||||
<span class="nx">@token</span> <span class="s1">'JS'</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">''</span>
|
||||
<span class="nx">@i</span> <span class="o">+=</span> <span class="nx">script</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-15"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-15">#</a> </div> <p>Matches regular expression literals. Lexing regular expressions is difficult
|
||||
to distinguish from division, so we borrow some basic heuristics from
|
||||
JavaScript and Ruby, borrow slash balancing from <code>@balancedToken</code>, and
|
||||
borrow interpolation from <code>@interpolateString</code>.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">regexToken</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nx">@chunk</span><span class="p">.</span><span class="nx">match</span> <span class="nx">REGEX_START</span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">NOT_REGEX</span><span class="p">,</span> <span class="nx">@tag</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="nx">unless</span> <span class="nv">regex = </span><span class="nx">@balancedToken</span> <span class="p">[</span><span class="s1">'/'</span><span class="p">,</span> <span class="s1">'/'</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="nx">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">'/'</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">-></span> <span class="s1">'\\'</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">'('</span><span class="p">,</span> <span class="s1">'('</span><span class="p">],</span> <span class="p">[</span><span class="s1">'NEW'</span><span class="p">,</span> <span class="s1">'new'</span><span class="p">],</span> <span class="p">[</span><span class="s1">'IDENTIFIER'</span><span class="p">,</span> <span class="s1">'RegExp'</span><span class="p">],</span> <span class="p">[</span><span class="s1">'CALL_START'</span><span class="p">,</span> <span class="s1">'('</span><span class="p">]]</span>
|
||||
<span class="nx">@interpolateString</span> <span class="s2">"\"#str\""</span><span class="p">,</span> <span class="nx">escapeQuotes</span><span class="o">:</span> <span class="kc">yes</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">@tokens</span><span class="p">.</span><span class="nx">length</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">','</span><span class="p">,</span> <span class="s1">','</span><span class="p">],</span> <span class="p">[</span><span class="s1">'STRING'</span><span class="p">,</span> <span class="s2">"\"#flags\""</span><span class="p">]</span> <span class="k">if</span> <span class="nx">flags</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">@tokens</span><span class="p">.</span><span class="nx">length</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">')'</span><span class="p">,</span> <span class="s1">')'</span><span class="p">],</span> <span class="p">[</span><span class="s1">')'</span><span class="p">,</span> <span class="s1">')'</span><span class="p">]</span>
|
||||
<span class="k">else</span>
|
||||
<span class="nx">@token</span> <span class="s1">'REGEX'</span><span class="p">,</span> <span class="nx">regex</span>
|
||||
<span class="nx">@i</span> <span class="o">+=</span> <span class="nx">regex</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-16"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-16">#</a> </div> <p>Matches a token in which which the passed delimiter pairs must be correctly
|
||||
balanced (ie. strings, JS literals).</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">balancedToken</span><span class="o">:</span> <span class="p">(</span><span class="nx">delimited</span><span class="p">...)</span> <span class="o">-></span>
|
||||
<span class="nx">@balancedString</span> <span class="nx">@chunk</span><span class="p">,</span> <span class="nx">delimited</span></pre></div> </td> </tr> <tr id="section-17"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-17">#</a> </div> <p>Matches newlines, indents, and outdents, and determines which is which.
|
||||
If we can detect that the current line is continued onto the the next line,
|
||||
then the newline is suppressed:</p>
|
||||
|
||||
<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="nx">lineToken</span><span class="o">:</span> <span class="o">-></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="nx">@line</span> <span class="o">+=</span> <span class="nx">count</span> <span class="nx">indent</span><span class="p">,</span> <span class="s2">"\n"</span>
|
||||
<span class="nx">@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">nextCharacter = </span><span class="nx">@match</span> <span class="nx">NEXT_CHARACTER</span><span class="p">,</span> <span class="mi">1</span>
|
||||
<span class="nv">noNewlines = </span><span class="nx">nextCharacter</span> <span class="o">is</span> <span class="s1">'.'</span> <span class="o">or</span> <span class="nx">nextCharacter</span> <span class="o">is</span> <span class="s1">','</span> <span class="o">or</span> <span class="nx">@unfinished</span><span class="p">()</span>
|
||||
<span class="k">if</span> <span class="nx">size</span> <span class="o">is</span> <span class="nx">@indent</span>
|
||||
<span class="k">return</span> <span class="nx">@suppressNewlines</span><span class="p">()</span> <span class="k">if</span> <span class="nx">noNewlines</span>
|
||||
<span class="k">return</span> <span class="nx">@newlineToken</span> <span class="nx">indent</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">size</span> <span class="o">></span> <span class="nx">@indent</span>
|
||||
<span class="k">return</span> <span class="nx">@suppressNewlines</span><span class="p">()</span> <span class="k">if</span> <span class="nx">noNewlines</span>
|
||||
<span class="vi">@outdebt = </span><span class="mi">0</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">'INDENT'</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">@outdentToken</span> <span class="nx">@indent</span> <span class="o">-</span> <span class="nx">size</span><span class="p">,</span> <span class="nx">noNewlines</span>
|
||||
<span class="vi">@indent = </span><span class="nx">size</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-18"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-18">#</a> </div> <p>Record an outdent token or multiple tokens, if we happen to be moving back
|
||||
inwards past several recorded indents.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">outdentToken</span><span class="o">:</span> <span class="p">(</span><span class="nx">moveOut</span><span class="p">,</span> <span class="nx">noNewlines</span><span class="p">,</span> <span class="nx">close</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">while</span> <span class="nx">moveOut</span> <span class="o">></span> <span class="mi">0</span>
|
||||
<span class="nv">len = </span><span class="nx">@indents</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">@indents</span><span class="p">[</span><span class="nx">len</span><span class="p">]</span> <span class="o">is</span> <span class="kc">undefined</span>
|
||||
<span class="nv">moveOut = </span><span class="mi">0</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">@indents</span><span class="p">[</span><span class="nx">len</span><span class="p">]</span> <span class="o">is</span> <span class="nx">@outdebt</span>
|
||||
<span class="nx">moveOut</span> <span class="o">-=</span> <span class="nx">@outdebt</span>
|
||||
<span class="vi">@outdebt = </span><span class="mi">0</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">@indents</span><span class="p">[</span><span class="nx">len</span><span class="p">]</span> <span class="o"><</span> <span class="nx">@outdebt</span>
|
||||
<span class="nx">@outdebt</span> <span class="o">-=</span> <span class="nx">@indents</span><span class="p">[</span><span class="nx">len</span><span class="p">]</span>
|
||||
<span class="nx">moveOut</span> <span class="o">-=</span> <span class="nx">@indents</span><span class="p">[</span><span class="nx">len</span><span class="p">]</span>
|
||||
<span class="k">else</span>
|
||||
<span class="nv">dent = </span><span class="nx">@indents</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span>
|
||||
<span class="nx">dent</span> <span class="o">-=</span> <span class="nx">@outdebt</span>
|
||||
<span class="nx">moveOut</span> <span class="o">-=</span> <span class="nx">dent</span>
|
||||
<span class="vi">@outdebt = </span><span class="mi">0</span>
|
||||
<span class="nx">@token</span> <span class="s1">'OUTDENT'</span><span class="p">,</span> <span class="nx">dent</span>
|
||||
<span class="nx">@outdebt</span> <span class="o">-=</span> <span class="nx">moveOut</span> <span class="k">if</span> <span class="nx">dent</span>
|
||||
<span class="nx">@token</span> <span class="s1">'TERMINATOR'</span><span class="p">,</span> <span class="s2">"\n"</span> <span class="nx">unless</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">'TERMINATOR'</span> <span class="o">or</span> <span class="nx">noNewlines</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-19"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-19">#</a> </div> <p>Matches and consumes non-meaningful whitespace. Tag the previous token
|
||||
as being "spaced", because there are some cases where it makes a difference.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">whitespaceToken</span><span class="o">:</span> <span class="o">-></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="nx">@i</span> <span class="o">+=</span> <span class="nx">space</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-20"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-20">#</a> </div> <p>Generate a newline token. Consecutive newlines get merged together.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">newlineToken</span><span class="o">:</span> <span class="p">(</span><span class="nx">newlines</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">@token</span> <span class="s1">'TERMINATOR'</span><span class="p">,</span> <span class="s2">"\n"</span> <span class="nx">unless</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">'TERMINATOR'</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-21"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-21">#</a> </div> <p>Use a <code>\</code> at a line-ending to suppress the newline.
|
||||
The slash is removed here once its job is done.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">suppressNewlines</span><span class="o">:</span> <span class="o">-></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">"\\"</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-22"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-22">#</a> </div> <p>We treat all other single characters as a token. Eg.: <code>( ) , . !</code>
|
||||
Multi-character operators are also literal tokens, so that Jison can assign
|
||||
the proper order of operations. There are some symbols that we tag specially
|
||||
here. <code>;</code> and newlines are both treated as a <code>TERMINATOR</code>, we distinguish
|
||||
parentheses that indicate a method call from regular parentheses, and so on.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">literalToken</span><span class="o">:</span> <span class="o">-></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">@tagParameters</span><span class="p">()</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">and</span> <span class="nx">value</span><span class="p">.</span><span class="nx">match</span> <span class="nx">CODE</span>
|
||||
<span class="nx">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="nx">@i</span> <span class="o">+=</span> <span class="nx">value</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="nv">prevSpaced = </span><span class="nx">@prev</span><span class="p">()</span> <span class="o">and</span> <span class="nx">@prev</span><span class="p">().</span><span class="nx">spaced</span>
|
||||
<span class="nv">tag = </span><span class="nx">value</span>
|
||||
<span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">'='</span>
|
||||
<span class="nx">@assignmentError</span><span class="p">()</span> <span class="k">if</span> <span class="nx">include</span> <span class="nx">JS_FORBIDDEN</span><span class="p">,</span> <span class="nx">@value</span><span class="p">()</span>
|
||||
<span class="k">if</span> <span class="nx">@value</span><span class="p">()</span> <span class="k">in</span> <span class="p">[</span><span class="s1">'or'</span><span class="p">,</span> <span class="s1">'and'</span><span class="p">]</span>
|
||||
<span class="k">return</span> <span class="nx">@tag</span> <span class="mi">1</span><span class="p">,</span> <span class="nx">CONVERSIONS</span><span class="p">[</span><span class="nx">@value</span><span class="p">()]</span> <span class="o">+</span> <span class="s1">'='</span>
|
||||
<span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">';'</span>
|
||||
<span class="nv">tag = </span><span class="s1">'TERMINATOR'</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">'?'</span> <span class="o">and</span> <span class="nx">prevSpaced</span>
|
||||
<span class="nv">tag = </span><span class="s1">'OP?'</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">include</span><span class="p">(</span><span class="nx">CALLABLE</span><span class="p">,</span> <span class="nx">@tag</span><span class="p">())</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">prevSpaced</span>
|
||||
<span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">'('</span>
|
||||
<span class="nv">tag = </span><span class="s1">'CALL_START'</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">value</span> <span class="o">is</span> <span class="s1">'['</span>
|
||||
<span class="nv">tag = </span><span class="s1">'INDEX_START'</span>
|
||||
<span class="nx">@tag</span> <span class="mi">1</span><span class="p">,</span> <span class="s1">'INDEX_SOAK'</span> <span class="k">if</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">'?'</span>
|
||||
<span class="nx">@tag</span> <span class="mi">1</span><span class="p">,</span> <span class="s1">'INDEX_PROTO'</span> <span class="k">if</span> <span class="nx">@tag</span><span class="p">()</span> <span class="o">is</span> <span class="s1">'::'</span>
|
||||
<span class="nx">@token</span> <span class="nx">tag</span><span class="p">,</span> <span class="nx">value</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-23"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-23">#</a> </div> <h2>Token Manipulators</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-24"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-24">#</a> </div> <p>As we consume a new <code>IDENTIFIER</code>, look at the previous token to determine
|
||||
if it's a special kind of accessor. Return <code>true</code> if any type of accessor
|
||||
is the previous token.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">tagAccessor</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="kc">false</span> <span class="k">if</span> <span class="p">(</span><span class="o">not</span> <span class="nv">prev = </span><span class="nx">@prev</span><span class="p">())</span> <span class="o">or</span> <span class="p">(</span><span class="nx">prev</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">.</span><span class="nx">spaced</span><span class="p">)</span>
|
||||
<span class="nv">accessor = </span><span class="k">if</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'::'</span>
|
||||
<span class="nx">@tag</span> <span class="mi">1</span><span class="p">,</span> <span class="s1">'PROTOTYPE_ACCESS'</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'.'</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">'.'</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">'?'</span>
|
||||
<span class="nx">@tag</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="s1">'SOAK_ACCESS'</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">'PROPERTY_ACCESS'</span>
|
||||
<span class="k">else</span>
|
||||
<span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'@'</span>
|
||||
<span class="k">if</span> <span class="nx">accessor</span> <span class="k">then</span> <span class="s1">'accessor'</span> <span class="k">else</span> <span class="kc">false</span></pre></div> </td> </tr> <tr id="section-25"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-25">#</a> </div> <p>Sanitize a heredoc or herecomment by escaping internal double quotes and
|
||||
erasing all external indentation on the left-hand side.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">sanitizeHeredoc</span><span class="o">:</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">-></span>
|
||||
<span class="k">while</span> <span class="p">(</span><span class="nv">match = </span><span class="nx">HEREDOC_INDENT</span><span class="p">.</span><span class="nx">exec</span><span class="p">(</span><span class="nx">doc</span><span class="p">))</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"><</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">"^"</span> <span class="o">+</span><span class="nx">indent</span><span class="p">,</span> <span class="s1">'gm'</span><span class="p">),</span> <span class="s1">''</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">"\\n"</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">'g'</span><span class="p">),</span> <span class="s2">"\\#options.quote"</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 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="nx">tagParameters</span><span class="o">:</span> <span class="o">-></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">')'</span>
|
||||
<span class="nv">i = </span><span class="mi">0</span>
|
||||
<span class="nx">loop</span>
|
||||
<span class="nx">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">'IDENTIFIER'</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">'PARAM'</span>
|
||||
<span class="k">when</span> <span class="s1">')'</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">'PARAM_END'</span>
|
||||
<span class="k">when</span> <span class="s1">'('</span><span class="p">,</span> <span class="s1">'CALL_START'</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">'PARAM_START'</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-27"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-27">#</a> </div> <p>Close up all remaining open blocks at the end of the file.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">closeIndentation</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nx">@outdentToken</span> <span class="nx">@indent</span></pre></div> </td> </tr> <tr id="section-28"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-28">#</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="nx">identifierError</span><span class="o">:</span> <span class="p">(</span><span class="nx">word</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">"SyntaxError: Reserved word \"#word\" on line #{@line + 1}"</span></pre></div> </td> </tr> <tr id="section-29"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-29">#</a> </div> <p>The error for when you try to assign to a reserved word in JavaScript,
|
||||
like "function" or "default".</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">assignmentError</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">"SyntaxError: Reserved word \"#{@value()}\" on line #{@line + 1} can't be assigned"</span></pre></div> </td> </tr> <tr id="section-30"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-30">#</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="nx">balancedString</span><span class="o">:</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">-></span>
|
||||
<span class="nx">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">'/'</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"><</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">'\\'</span><span class="p">,</span> <span class="nx">i</span>
|
||||
<span class="nx">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="nx">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="nx">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="nx">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">'\n'</span><span class="p">,</span> <span class="nx">i</span>
|
||||
<span class="nx">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">"SyntaxError: Unterminated #{levels.pop()[0]} starting on line #{@line + 1}"</span>
|
||||
<span class="k">if</span> <span class="o">not</span> <span class="nx">i</span> <span class="k">then</span> <span class="kc">false</span> <span class="k">else</span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span></pre></div> </td> </tr> <tr id="section-31"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-31">#</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="nx">interpolateString</span><span class="o">:</span> <span class="p">(</span><span class="nx">str</span><span class="p">,</span> <span class="nx">options</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nx">options</span> <span class="o">or=</span> <span class="p">{}</span>
|
||||
<span class="k">if</span> <span class="nx">str</span><span class="p">.</span><span class="nx">length</span> <span class="o"><</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">'"'</span>
|
||||
<span class="nx">@token</span> <span class="s1">'STRING'</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="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"><</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">'\\'</span><span class="p">,</span> <span class="nx">i</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="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">"this.#{ interp.substring(1) }"</span> <span class="k">if</span> <span class="nx">starts</span> <span class="nx">interp</span><span class="p">,</span> <span class="s1">'@'</span>
|
||||
<span class="nx">tokens</span><span class="p">.</span><span class="nx">push</span> <span class="p">[</span><span class="s1">'STRING'</span><span class="p">,</span> <span class="s2">"#quote#{ str.substring(pi, i) }#quote"</span><span class="p">]</span> <span class="k">if</span> <span class="nx">pi</span> <span class="o"><</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">'IDENTIFIER'</span><span class="p">,</span> <span class="nx">interp</span><span class="p">]</span>
|
||||
<span class="nx">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">@balancedString</span> <span class="nx">str</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">i</span><span class="p">),</span> <span class="p">[[</span><span class="s1">'#{'</span><span class="p">,</span> <span class="s1">'}'</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">'STRING'</span><span class="p">,</span> <span class="s2">"#quote#{ str.substring(pi, i) }#quote"</span><span class="p">]</span> <span class="k">if</span> <span class="nx">pi</span> <span class="o"><</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">inner = </span><span class="nx">inner</span><span class="p">.</span><span class="nx">replace</span> <span class="k">new</span> <span class="nb">RegExp</span><span class="p">(</span><span class="s1">'\\\\'</span> <span class="o">+</span> <span class="nx">quote</span><span class="p">,</span> <span class="s1">'g'</span><span class="p">),</span> <span class="nx">quote</span> <span class="k">if</span> <span class="nx">options</span><span class="p">.</span><span class="nx">heredoc</span>
|
||||
<span class="nv">nested = </span><span class="nx">lexer</span><span class="p">.</span><span class="nx">tokenize</span> <span class="s2">"(#inner)"</span><span class="p">,</span> <span class="nx">line</span><span class="o">:</span> <span class="nx">@line</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">')'</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">'CALL_END'</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">'TOKENS'</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">'STRING'</span><span class="p">,</span> <span class="s2">"#quote#quote"</span><span class="p">]</span>
|
||||
<span class="nx">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="nx">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">'STRING'</span><span class="p">,</span> <span class="s2">"#quote#{ str.substring(pi, i) }#quote"</span><span class="p">]</span> <span class="k">if</span> <span class="nx">pi</span> <span class="o"><</span> <span class="nx">i</span> <span class="o">and</span> <span class="nx">pi</span> <span class="o"><</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">'STRING'</span><span class="p">,</span> <span class="s1">'""'</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">'STRING'</span>
|
||||
<span class="nv">interpolated = </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">'('</span><span class="p">,</span> <span class="s1">'('</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">'TOKENS'</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">'STRING'</span> <span class="o">and</span> <span class="nx">options</span><span class="p">.</span><span class="nx">escapeQuotes</span>
|
||||
<span class="nv">escaped = </span><span class="nx">value</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="nx">value</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/"/g</span><span class="p">,</span> <span class="s1">'\\"'</span><span class="p">)</span>
|
||||
<span class="nx">@token</span> <span class="nx">tag</span><span class="p">,</span> <span class="s2">"\"#escaped\""</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">'+'</span><span class="p">,</span> <span class="s1">'+'</span> <span class="k">if</span> <span class="nx">i</span> <span class="o"><</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">')'</span><span class="p">,</span> <span class="s1">')'</span> <span class="k">if</span> <span class="nx">interpolated</span>
|
||||
<span class="nx">tokens</span></pre></div> </td> </tr> <tr id="section-32"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-32">#</a> </div> <h2>Helpers</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-33"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-33">#</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="nx">token</span><span class="o">:</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">@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-34"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-34">#</a> </div> <p>Peek at a tag in the current token stream.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">tag</span><span class="o">:</span> <span class="p">(</span><span class="nx">index</span><span class="p">,</span> <span class="nx">newTag</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="nx">unless</span> <span class="nv">tok = </span><span class="nx">@prev</span> <span class="nx">index</span>
|
||||
<span class="k">return</span> <span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="nx">newTag</span> <span class="k">if</span> <span class="nx">newTag</span><span class="o">?</span>
|
||||
<span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span></pre></div> </td> </tr> <tr id="section-35"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-35">#</a> </div> <p>Peek at a value in the current token stream.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">value</span><span class="o">:</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">-></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-36"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-36">#</a> </div> <p>Peek at a previous token, entire.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">prev</span><span class="o">:</span> <span class="p">(</span><span class="nx">index</span><span class="p">)</span> <span class="o">-></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-37"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-37">#</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="nx">match</span><span class="o">:</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">-></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-38"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-38">#</a> </div> <p>Are we in the midst of an unfinished expression?</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">unfinished</span><span class="o">:</span> <span class="o">-></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">'.'</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> <span class="o">and</span>
|
||||
<span class="o">not</span> <span class="nx">@chunk</span><span class="p">.</span><span class="nx">match</span> <span class="nx">ASSIGNED</span></pre></div> </td> </tr> <tr id="section-39"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-39">#</a> </div> <h2>Constants</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-40"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-40">#</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">"if"</span><span class="p">,</span> <span class="s2">"else"</span><span class="p">,</span>
|
||||
<span class="s2">"true"</span><span class="p">,</span> <span class="s2">"false"</span><span class="p">,</span>
|
||||
<span class="s2">"new"</span><span class="p">,</span> <span class="s2">"return"</span><span class="p">,</span>
|
||||
<span class="s2">"try"</span><span class="p">,</span> <span class="s2">"catch"</span><span class="p">,</span> <span class="s2">"finally"</span><span class="p">,</span> <span class="s2">"throw"</span><span class="p">,</span>
|
||||
<span class="s2">"break"</span><span class="p">,</span> <span class="s2">"continue"</span><span class="p">,</span>
|
||||
<span class="s2">"for"</span><span class="p">,</span> <span class="s2">"in"</span><span class="p">,</span> <span class="s2">"while"</span><span class="p">,</span>
|
||||
<span class="s2">"delete"</span><span class="p">,</span> <span class="s2">"instanceof"</span><span class="p">,</span> <span class="s2">"typeof"</span><span class="p">,</span>
|
||||
<span class="s2">"switch"</span><span class="p">,</span> <span class="s2">"super"</span><span class="p">,</span> <span class="s2">"extends"</span><span class="p">,</span> <span class="s2">"class"</span><span class="p">,</span>
|
||||
<span class="s2">"this"</span><span class="p">,</span> <span class="s2">"null"</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>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">"and"</span><span class="p">,</span> <span class="s2">"or"</span><span class="p">,</span> <span class="s2">"is"</span><span class="p">,</span> <span class="s2">"isnt"</span><span class="p">,</span> <span class="s2">"not"</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">"then"</span><span class="p">,</span> <span class="s2">"unless"</span><span class="p">,</span> <span class="s2">"until"</span><span class="p">,</span> <span class="s2">"loop"</span><span class="p">,</span>
|
||||
<span class="s2">"yes"</span><span class="p">,</span> <span class="s2">"no"</span><span class="p">,</span> <span class="s2">"on"</span><span class="p">,</span> <span class="s2">"off"</span><span class="p">,</span>
|
||||
<span class="s2">"of"</span><span class="p">,</span> <span class="s2">"by"</span><span class="p">,</span> <span class="s2">"where"</span><span class="p">,</span> <span class="s2">"when"</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 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">"case"</span><span class="p">,</span> <span class="s2">"default"</span><span class="p">,</span> <span class="s2">"do"</span><span class="p">,</span> <span class="s2">"function"</span><span class="p">,</span> <span class="s2">"var"</span><span class="p">,</span> <span class="s2">"void"</span><span class="p">,</span> <span class="s2">"with"</span><span class="p">,</span>
|
||||
<span class="s2">"const"</span><span class="p">,</span> <span class="s2">"let"</span><span class="p">,</span> <span class="s2">"enum"</span><span class="p">,</span> <span class="s2">"export"</span><span class="p">,</span> <span class="s2">"import"</span><span class="p">,</span> <span class="s2">"native"</span><span class="p">,</span>
|
||||
<span class="s2">"__hasProp"</span><span class="p">,</span> <span class="s2">"__extends"</span><span class="p">,</span> <span class="s2">"__slice"</span>
|
||||
<span class="p">]</span></pre></div> </td> </tr> <tr id="section-43"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-43">#</a> </div> <p>The 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-44"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-44">#</a> </div> <p>Token matching regexes.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">IDENTIFIER = </span><span class="sr">/^([a-zA-Z\$_](\w|\$)*)/</span>
|
||||
<span class="nv">NUMBER = </span><span class="sr">/^(((\b0(x|X)[0-9a-fA-F]+)|((\b[0-9]+(\.[0-9]+)?|\.[0-9]+)(e[+\-]?[0-9]+)?)))\b/i</span>
|
||||
<span class="nv">HEREDOC = </span><span class="sr">/^("{6}|'{6}|"{3}\n?([\s\S]*?)\n?([ \t]*)"{3}|'{3}\n?([\s\S]*?)\n?([ \t]*)'{3})/</span>
|
||||
<span class="nv">INTERPOLATION = </span><span class="sr">/^#([a-zA-Z_@]\w*(\.\w+)*)/</span>
|
||||
<span class="nv">OPERATOR = </span><span class="sr">/^(-[\-=>]?|\+[+=]?|[*&|\/%=<>:!?]+)([ \t]*)/</span>
|
||||
<span class="nv">WHITESPACE = </span><span class="sr">/^([ \t]+)/</span>
|
||||
<span class="nv">COMMENT = </span><span class="sr">/^(\s*\#{3}(?!#)[ \t]*\n+([\s\S]*?)[ \t]*\n+[ \t]*\#{3}|(\s*#(?!##[^#])[^\n]*)+)/</span>
|
||||
<span class="nv">CODE = </span><span class="sr">/^((-|=)>)/</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></pre></div> </td> </tr> <tr id="section-45"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-45">#</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|$)/</span>
|
||||
<span class="nv">REGEX_ESCAPE = </span><span class="sr">/\\[^\$]/g</span></pre></div> </td> </tr> <tr id="section-46"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-46">#</a> </div> <p>Token cleaning regexes.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">JS_CLEANER = </span><span class="sr">/(^`|`$)/g</span>
|
||||
<span class="nv">MULTILINER = </span><span class="sr">/\n/g</span>
|
||||
<span class="nv">STRING_NEWLINES = </span><span class="sr">/\n[ \t]*/g</span>
|
||||
<span class="nv">NO_NEWLINE = </span><span class="sr">/^([+\*&|\/\-%=<>!.\\][<>=&|]*|and|or|is|isnt|not|delete|typeof|instanceof)$/</span>
|
||||
<span class="nv">HEREDOC_INDENT = </span><span class="sr">/(\n+([ \t]*)|^([ \t]+))/g</span>
|
||||
<span class="nv">ASSIGNED = </span><span class="sr">/^\s*([a-zA-Z\$_@]\w*[ \t]*?[:=][^=])/</span>
|
||||
<span class="nv">NEXT_CHARACTER = </span><span class="sr">/^\s*(\S)/</span></pre></div> </td> </tr> <tr id="section-47"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-47">#</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">'NUMBER'</span><span class="p">,</span> <span class="s1">'REGEX'</span><span class="p">,</span> <span class="s1">'++'</span><span class="p">,</span> <span class="s1">'--'</span><span class="p">,</span> <span class="s1">'FALSE'</span><span class="p">,</span> <span class="s1">'NULL'</span><span class="p">,</span> <span class="s1">'TRUE'</span><span class="p">,</span> <span class="s1">']'</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>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">'IDENTIFIER'</span><span class="p">,</span> <span class="s1">'SUPER'</span><span class="p">,</span> <span class="s1">')'</span><span class="p">,</span> <span class="s1">']'</span><span class="p">,</span> <span class="s1">'}'</span><span class="p">,</span> <span class="s1">'STRING'</span><span class="p">,</span> <span class="s1">'@'</span><span class="p">,</span> <span class="s1">'THIS'</span><span class="p">,</span> <span class="s1">'?'</span><span class="p">,</span> <span class="s1">'::'</span><span class="p">]</span></pre></div> </td> </tr> <tr id="section-49"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-49">#</a> </div> <p>Tokens 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">'INDENT'</span><span class="p">,</span> <span class="s1">'OUTDENT'</span><span class="p">,</span> <span class="s1">'TERMINATOR'</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>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">'and'</span><span class="o">:</span> <span class="s1">'&&'</span>
|
||||
<span class="s1">'or'</span><span class="o">:</span> <span class="s1">'||'</span>
|
||||
<span class="s1">'is'</span><span class="o">:</span> <span class="s1">'=='</span>
|
||||
<span class="s1">'isnt'</span><span class="o">:</span> <span class="s1">'!='</span>
|
||||
<span class="s1">'not'</span><span class="o">:</span> <span class="s1">'!'</span>
|
||||
<span class="s1">'==='</span><span class="o">:</span> <span class="s1">'=='</span>
|
||||
<span class="p">}</span>
|
||||
|
||||
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>
|
||||
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|
||||
<!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 … <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, helpBanner
|
||||
options = parser.parse process.argv
|
||||
</code></pre>
|
||||
|
||||
<p>The first non-option is considered to be the start of the file (and file
|
||||
option) list, and all subsequent arguments are left unparsed.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">exports.OptionParser = </span><span class="nx">class</span> <span class="nx">OptionParser</span></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-2">#</a> </div> <p>Initialize with a list of valid options, in the form:</p>
|
||||
|
||||
<pre><code>[short-flag, long-flag, description]
|
||||
</code></pre>
|
||||
|
||||
<p>Along with an an optional banner for the usage help.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">constructor</span><span class="o">:</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">-></span>
|
||||
<span class="vi">@banner = </span><span class="nx">banner</span>
|
||||
<span class="vi">@rules = </span><span class="nx">buildRules</span> <span class="nx">rules</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="nx">parse</span><span class="o">:</span> <span class="p">(</span><span class="nx">args</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">options = </span><span class="nx">arguments</span><span class="o">:</span> <span class="p">[]</span>
|
||||
<span class="nv">args = </span><span class="nx">normalizeArguments</span> <span class="nx">args</span>
|
||||
<span class="k">for</span> <span class="nx">arg</span><span class="p">,</span> <span class="nx">i</span> <span class="k">in</span> <span class="nx">args</span>
|
||||
<span class="nv">isOption = </span><span class="o">!!</span><span class="p">(</span><span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)</span> <span class="o">or</span> <span class="nx">arg</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">SHORT_FLAG</span><span class="p">))</span>
|
||||
<span class="nv">matchedRule = </span><span class="kc">no</span>
|
||||
<span class="k">for</span> <span class="nx">rule</span> <span class="k">in</span> <span class="nx">@rules</span>
|
||||
<span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="o">is</span> <span class="nx">arg</span> <span class="o">or</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">longFlag</span> <span class="o">is</span> <span class="nx">arg</span>
|
||||
<span class="nx">options</span><span class="p">[</span><span class="nx">rule</span><span class="p">.</span><span class="nx">name</span><span class="p">]</span> <span class="o">=</span> <span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">hasArgument</span> <span class="k">then</span> <span class="nx">args</span><span class="p">[</span><span class="nx">i</span> <span class="o">+=</span> <span class="mi">1</span><span class="p">]</span> <span class="k">else</span> <span class="kc">true</span>
|
||||
<span class="nv">matchedRule = </span><span class="kc">yes</span>
|
||||
<span class="k">break</span>
|
||||
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">"unrecognized option: #arg"</span> <span class="k">if</span> <span class="nx">isOption</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">matchedRule</span>
|
||||
<span class="k">if</span> <span class="o">not</span> <span class="nx">isOption</span>
|
||||
<span class="nv">options.arguments = </span><span class="nx">args</span><span class="p">[</span><span class="nx">i</span><span class="p">...</span><span class="nx">args</span><span class="p">.</span><span class="nx">length</span><span class="p">]</span>
|
||||
<span class="k">break</span>
|
||||
<span class="nx">options</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-4">#</a> </div> <p>Return the help text for this <strong>OptionParser</strong>, listing and describing all
|
||||
of the valid options, for <code>--help</code> and such.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">help</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nv">lines = </span><span class="p">[</span><span class="s1">'Available options:'</span><span class="p">]</span>
|
||||
<span class="nx">lines</span><span class="p">.</span><span class="nx">unshift</span> <span class="s2">"#@banner\n"</span> <span class="k">if</span> <span class="nx">@banner</span>
|
||||
<span class="k">for</span> <span class="nx">rule</span> <span class="k">in</span> <span class="nx">@rules</span>
|
||||
<span class="nv">spaces = </span><span class="mi">15</span> <span class="o">-</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">longFlag</span><span class="p">.</span><span class="nx">length</span>
|
||||
<span class="nv">spaces = </span><span class="k">if</span> <span class="nx">spaces</span> <span class="o">></span> <span class="mi">0</span> <span class="k">then</span> <span class="p">(</span><span class="s1">' '</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">''</span><span class="p">)</span> <span class="k">else</span> <span class="s1">''</span>
|
||||
<span class="nv">letPart = </span><span class="k">if</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="k">then</span> <span class="nx">rule</span><span class="p">.</span><span class="nx">shortFlag</span> <span class="o">+</span> <span class="s1">', '</span> <span class="k">else</span> <span class="s1">' '</span>
|
||||
<span class="nx">lines</span><span class="p">.</span><span class="nx">push</span> <span class="s2">" #letPart#rule.longFlag#spaces#rule.description"</span>
|
||||
<span class="s2">"\n#{ lines.join('\n') }\n"</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">buildRules = </span><span class="p">(</span><span class="nx">rules</span><span class="p">)</span> <span class="o">-></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"><</span> <span class="mi">3</span>
|
||||
<span class="nx">buildRule</span> <span class="nx">tuple</span><span class="p">...</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-8">#</a> </div> <p>Build a rule from a <code>-o</code> short flag, a <code>--output [DIR]</code> long flag, and the
|
||||
description of what the option does.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">buildRule = </span><span class="p">(</span><span class="nx">shortFlag</span><span class="p">,</span> <span class="nx">longFlag</span><span class="p">,</span> <span class="nx">description</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">match = </span><span class="nx">longFlag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">OPTIONAL</span><span class="p">)</span>
|
||||
<span class="nv">longFlag = </span><span class="nx">longFlag</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="nx">LONG_FLAG</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
|
||||
<span class="p">{</span>
|
||||
<span class="nx">name</span><span class="o">:</span> <span class="nx">longFlag</span><span class="p">.</span><span class="nx">substr</span> <span class="mi">2</span>
|
||||
<span class="nx">shortFlag</span><span class="o">:</span> <span class="nx">shortFlag</span>
|
||||
<span class="nx">longFlag</span><span class="o">:</span> <span class="nx">longFlag</span>
|
||||
<span class="nx">description</span><span class="o">:</span> <span class="nx">description</span>
|
||||
<span class="nx">hasArgument</span><span class="o">:</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">normalizeArguments = </span><span class="p">(</span><span class="nx">args</span><span class="p">)</span> <span class="o">-></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">'-'</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">''</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>
|
||||
@@ -1,23 +0,0 @@
|
||||
<!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 … <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> 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">'./coffee-script'</span>
|
||||
<span class="nv">helpers = </span><span class="nx">require</span><span class="p">(</span><span class="s1">'./helpers'</span><span class="p">).</span><span class="nx">helpers</span>
|
||||
<span class="nv">readline = </span><span class="nx">require</span> <span class="s1">'readline'</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-3">#</a> </div> <p>Start by opening up <strong>stdio</strong>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">stdio = </span><span class="nx">process</span><span class="p">.</span><span class="nx">openStdin</span><span class="p">()</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-4">#</a> </div> <p>Quick alias for quitting the REPL.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">helpers</span><span class="p">.</span><span class="nx">extend</span> <span class="nx">global</span><span class="p">,</span> <span class="nx">quit</span><span class="o">:</span> <span class="o">-></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></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">-></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="nx">noWrap</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">globals</span><span class="o">:</span> <span class="kc">true</span><span class="p">,</span> <span class="nx">fileName</span><span class="o">:</span> <span class="s1">'repl'</span>
|
||||
<span class="nx">puts</span> <span class="nx">inspect</span> <span class="nx">val</span> <span class="k">if</span> <span class="nx">val</span> <span class="o">isnt</span> <span class="kc">undefined</span>
|
||||
<span class="k">catch</span> <span class="nx">err</span>
|
||||
<span class="nx">puts</span> <span class="nx">err</span><span class="p">.</span><span class="nx">stack</span> <span class="o">or</span> <span class="nx">err</span><span class="p">.</span><span class="nx">toString</span><span class="p">()</span>
|
||||
<span class="nx">repl</span><span class="p">.</span><span class="nx">prompt</span><span class="p">()</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-6">#</a> </div> <p>Create the REPL by listening to <strong>stdin</strong>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">repl = </span><span class="nx">readline</span><span class="p">.</span><span class="nx">createInterface</span> <span class="nx">stdio</span>
|
||||
<span class="nx">repl</span><span class="p">.</span><span class="nx">setPrompt</span> <span class="s1">'coffee> '</span>
|
||||
<span class="nx">stdio</span><span class="p">.</span><span class="kc">on</span> <span class="s1">'data'</span><span class="p">,</span> <span class="p">(</span><span class="nx">buffer</span><span class="p">)</span> <span class="o">-></span> <span class="nx">repl</span><span class="p">.</span><span class="nx">write</span> <span class="nx">buffer</span>
|
||||
<span class="nx">repl</span><span class="p">.</span><span class="kc">on</span> <span class="s1">'close'</span><span class="p">,</span> <span class="o">-></span> <span class="nx">stdio</span><span class="p">.</span><span class="nx">destroy</span><span class="p">()</span>
|
||||
<span class="nx">repl</span><span class="p">.</span><span class="kc">on</span> <span class="s1">'line'</span><span class="p">,</span> <span class="nx">run</span>
|
||||
<span class="nx">repl</span><span class="p">.</span><span class="nx">prompt</span><span class="p">()</span>
|
||||
|
||||
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>
|
||||
@@ -1,278 +0,0 @@
|
||||
<!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 … <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">'./helpers'</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>Helpful snippet for debugging:
|
||||
puts (t[0] + '/' + t[1] for t in @tokens).join ' '</p> </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>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="nx">rewrite</span><span class="o">:</span> <span class="p">(</span><span class="nx">tokens</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="vi">@tokens = </span><span class="nx">tokens</span>
|
||||
<span class="nx">@adjustComments</span><span class="p">()</span>
|
||||
<span class="nx">@removeLeadingNewlines</span><span class="p">()</span>
|
||||
<span class="nx">@removeMidExpressionNewlines</span><span class="p">()</span>
|
||||
<span class="nx">@closeOpenCallsAndIndexes</span><span class="p">()</span>
|
||||
<span class="nx">@addImplicitIndentation</span><span class="p">()</span>
|
||||
<span class="nx">@addImplicitBraces</span><span class="p">()</span>
|
||||
<span class="nx">@addImplicitParentheses</span><span class="p">()</span>
|
||||
<span class="nx">@ensureBalance</span> <span class="nx">BALANCED_PAIRS</span>
|
||||
<span class="nx">@rewriteClosingParens</span><span class="p">()</span>
|
||||
<span class="nx">@tokens</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-7">#</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="nx">scanTokens</span><span class="o">:</span> <span class="p">(</span><span class="nx">block</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">i = </span><span class="mi">0</span>
|
||||
<span class="nx">loop</span>
|
||||
<span class="k">break</span> <span class="nx">unless</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span>
|
||||
<span class="nv">move = </span><span class="nx">block</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">],</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">],</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="nx">i</span>
|
||||
<span class="nx">i</span> <span class="o">+=</span> <span class="nx">move</span>
|
||||
<span class="kc">true</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-8">#</a> </div> <p>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="nx">adjustComments</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></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">'HERECOMMENT'</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">'INDENT'</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">'OUTDENT'</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">'TERMINATOR'</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">-</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">1</span>
|
||||
<span class="k">else</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">after</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">prev</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">not</span> <span class="k">in</span> <span class="p">[</span><span class="s1">'TERMINATOR'</span><span class="p">,</span> <span class="s1">'INDENT'</span><span class="p">,</span> <span class="s1">'OUTDENT'</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="nx">post</span> <span class="o">and</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'TERMINATOR'</span> <span class="o">and</span> <span class="nx">after</span> <span class="o">and</span> <span class="nx">after</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'OUTDENT'</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">2</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">i</span><span class="p">,</span> <span class="mi">2</span><span class="p">)...)</span>
|
||||
<span class="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="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">'TERMINATOR'</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">'TERMINATOR'</span><span class="p">,</span> <span class="s2">"\n"</span><span class="p">,</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">2</span><span class="p">]]</span>
|
||||
<span class="k">else</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">'TERMINATOR'</span><span class="p">,</span> <span class="s2">"\n"</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">return</span> <span class="mi">1</span></pre></div> </td> </tr> <tr id="section-9"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-9">#</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="nx">removeLeadingNewlines</span><span class="o">:</span> <span class="o">-></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">'TERMINATOR'</span></pre></div> </td> </tr> <tr id="section-10"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-10">#</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="nx">removeMidExpressionNewlines</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></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">'TERMINATOR'</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-11"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-11">#</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="nx">closeOpenCallsAndIndexes</span><span class="o">:</span> <span class="o">-></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">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></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">'CALL_START'</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">'INDEX_START'</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">'('</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="mi">1</span>
|
||||
<span class="k">when</span> <span class="s1">'['</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="mi">1</span>
|
||||
<span class="k">when</span> <span class="s1">')'</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">'CALL_END'</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="mi">1</span>
|
||||
<span class="k">when</span> <span class="s1">']'</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">'INDEX_END'</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="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>Object literals may be written with implicit braces, for simple cases.
|
||||
Insert the missing braces here, so that the parser doesn't have to.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">addImplicitBraces</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nv">stack = </span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="nv">running = </span><span class="kc">no</span>
|
||||
<span class="nv">closeBrackets = </span><span class="p">(</span><span class="nx">i</span><span class="p">)</span> <span class="o">=></span>
|
||||
<span class="nv">len = </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="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">len</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">'}'</span><span class="p">,</span> <span class="s1">'}'</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">len</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">len</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="nx">size</span>
|
||||
<span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></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">len = </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="nv">before = </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="nv">after = </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="nv">open = </span><span class="nx">stack</span><span class="p">[</span><span class="nx">len</span><span class="p">]</span> <span class="o">></span> <span class="mi">0</span>
|
||||
<span class="k">if</span> <span class="p">(</span><span class="nx">tag</span> <span class="o">is</span> <span class="s1">'TERMINATOR'</span> <span class="o">and</span> <span class="o">not</span> <span class="p">((</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">':'</span><span class="p">)</span> <span class="o">or</span> <span class="p">(</span><span class="nx">post</span> <span class="o">and</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'@'</span> <span class="o">and</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">3</span><span class="p">]</span> <span class="o">and</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">3</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">':'</span><span class="p">)))</span> <span class="o">or</span>
|
||||
<span class="p">(</span><span class="nx">running</span> <span class="o">and</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">','</span> <span class="o">and</span> <span class="nx">post</span> <span class="o">and</span> <span class="p">(</span><span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">not</span> <span class="k">in</span> <span class="p">[</span><span class="s1">'IDENTIFIER'</span><span class="p">,</span> <span class="s1">'STRING'</span><span class="p">,</span> <span class="s1">'@'</span><span class="p">]))</span>
|
||||
<span class="nv">running = </span><span class="kc">no</span>
|
||||
<span class="k">return</span> <span class="nx">closeBrackets</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
|
||||
<span class="k">else</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="p">(</span><span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">'{'</span> <span class="k">then</span> <span class="mi">1</span> <span class="k">else</span> <span class="mi">0</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="mi">2</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">'{'</span> <span class="o">and</span> <span class="nx">post</span> <span class="o">and</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'INDENT'</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">return</span> <span class="mi">1</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">'OUTDENT'</span> <span class="o">and</span> <span class="nx">post</span> <span class="o">and</span> <span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'}'</span>
|
||||
<span class="nv">size = </span><span class="nx">closeBrackets</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">'OUTDENT'</span>
|
||||
<span class="nx">stack</span><span class="p">[</span><span class="nx">len</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</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="nx">stack</span><span class="p">[</span><span class="nx">len</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="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">'}'</span>
|
||||
<span class="k">return</span> <span class="nx">size</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">'OUTDENT'</span>
|
||||
<span class="k">else</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">is</span> <span class="s1">':'</span> <span class="o">and</span> <span class="o">not</span> <span class="nx">open</span>
|
||||
<span class="nv">idx = </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">'@'</span> <span class="k">then</span> <span class="nx">i</span> <span class="o">-</span> <span class="mi">2</span> <span class="k">else</span> <span class="nx">i</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">idx</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="p">[</span><span class="s1">'{'</span><span class="p">,</span> <span class="s1">'{'</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="mi">1</span>
|
||||
<span class="nv">running = </span><span class="kc">yes</span>
|
||||
<span class="k">return</span> <span class="mi">2</span>
|
||||
<span class="k">return</span> <span class="mi">1</span></pre></div> </td> </tr> <tr id="section-13"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-13">#</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="nx">addImplicitParentheses</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nv">stack = </span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="nv">closeCalls = </span><span class="p">(</span><span class="nx">i</span><span class="p">)</span> <span class="o">=></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">'CALL_END'</span><span class="p">,</span> <span class="s1">')'</span><span class="p">,</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span><span class="p">][</span><span class="mi">2</span><span class="p">]])</span>
|
||||
<span class="nv">size = </span><span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="nx">stack</span><span class="p">[</span><span class="nx">stack</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="nx">size</span>
|
||||
<span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></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">before = </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">and</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">-</span> <span class="mi">2</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="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="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">'OUTDENT'</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">></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="o">and</span>
|
||||
<span class="o">not</span> <span class="p">(</span><span class="nx">tag</span> <span class="o">is</span> <span class="s1">'!'</span> <span class="o">and</span> <span class="p">(</span><span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="k">in</span> <span class="p">[</span><span class="s1">'IN'</span><span class="p">,</span> <span class="s1">'OF'</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">'CALL_START'</span><span class="p">,</span> <span class="s1">'('</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="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">'INDENT'</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="o">or</span> <span class="nx">before</span> <span class="o">and</span> <span class="nx">before</span> <span class="o">is</span> <span class="s1">'CLASS'</span><span class="p">)</span>
|
||||
<span class="nv">size = </span><span class="nx">closeCalls</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
|
||||
<span class="nx">stack</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span>
|
||||
<span class="k">return</span> <span class="nx">size</span>
|
||||
<span class="nx">stack</span><span class="p">.</span><span class="nx">push</span> <span class="mi">0</span>
|
||||
<span class="k">return</span> <span class="mi">1</span>
|
||||
<span class="k">if</span> <span class="nx">open</span> <span class="o">and</span> <span class="o">!</span><span class="nx">token</span><span class="p">.</span><span class="nx">generated</span> <span class="o">and</span> <span class="nx">prev</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">','</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">','</span> <span class="o">and</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="nx">j</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="o">is</span> <span class="s1">'OUTDENT'</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">'TERMINATOR'</span>
|
||||
<span class="k">else</span>
|
||||
<span class="nv">size = </span><span class="nx">closeCalls</span><span class="p">(</span><span class="nx">i</span><span class="p">)</span>
|
||||
<span class="nx">stack</span><span class="p">.</span><span class="nx">pop</span><span class="p">()</span> <span class="k">if</span> <span class="nx">tag</span> <span class="o">isnt</span> <span class="s1">'OUTDENT'</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">'OUTDENT'</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="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-14"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-14">#</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="nx">addImplicitIndentation</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></span>
|
||||
<span class="k">if</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'ELSE'</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">'OUTDENT'</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">@indentation</span><span class="p">(</span><span class="nx">token</span><span class="p">)...</span>
|
||||
<span class="k">return</span> <span class="mi">2</span>
|
||||
<span class="k">if</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'CATCH'</span> <span class="o">and</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="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'TERMINATOR'</span> <span class="o">or</span> <span class="nx">@tokens</span><span class="p">[</span><span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'FINALLY'</span><span class="p">)</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">@indentation</span><span class="p">(</span><span class="nx">token</span><span class="p">)...</span>
|
||||
<span class="k">return</span> <span class="mi">4</span>
|
||||
<span class="k">return</span> <span class="mi">1</span> <span class="nx">unless</span> <span class="nx">include</span><span class="p">(</span><span class="nx">SINGLE_LINERS</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">and</span>
|
||||
<span class="nx">post</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">isnt</span> <span class="s1">'INDENT'</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">'ELSE'</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">'IF'</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="p">[</span><span class="nx">indent</span><span class="p">,</span> <span class="nx">outdent</span><span class="p">]</span> <span class="o">=</span> <span class="nx">@indentation</span> <span class="nx">token</span>
|
||||
<span class="nv">indent.generated = outdent.generated = </span><span class="kc">true</span>
|
||||
<span class="nx">@tokens</span><span class="p">.</span><span class="nx">splice</span> <span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="nx">indent</span>
|
||||
<span class="nv">idx = </span><span class="nx">i</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="nv">parens = </span><span class="mi">0</span>
|
||||
<span class="nx">loop</span>
|
||||
<span class="nx">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">';'</span> <span class="o">and</span> <span class="nx">parens</span> <span class="o">is</span> <span class="mi">0</span><span class="p">)</span> <span class="o">or</span>
|
||||
<span class="p">(</span><span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">')'</span> <span class="o">and</span> <span class="nx">parens</span> <span class="o">is</span> <span class="mi">0</span><span class="p">))</span> <span class="o">and</span>
|
||||
<span class="o">not</span> <span class="p">(</span><span class="nx">tok</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">is</span> <span class="s1">'ELSE'</span> <span class="o">and</span> <span class="nx">starter</span> <span class="o">not</span> <span class="k">in</span> <span class="p">[</span><span class="s1">'IF'</span><span class="p">,</span> <span class="s1">'THEN'</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">","</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="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="nx">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">'('</span>
|
||||
<span class="nx">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">')'</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">'THEN'</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-15"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-15">#</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="nx">ensureBalance</span><span class="o">:</span> <span class="p">(</span><span class="nx">pairs</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="nv">levels = </span><span class="p">{}</span>
|
||||
<span class="nv">openLine = </span><span class="p">{}</span>
|
||||
<span class="nx">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></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">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">openLine</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span> <span class="o">=</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="k">if</span> <span class="nx">levels</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span> <span class="o">==</span> <span class="mi">0</span>
|
||||
<span class="nx">levels</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span> <span class="o">+=</span> <span class="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="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">"too many #{token[1]} on line #{token[2] + 1}"</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="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">></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">openLine</span><span class="p">[</span><span class="nx">open</span><span class="p">]</span> <span class="o">+</span> <span class="mi">1</span>
|
||||
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span> <span class="s2">"unclosed #open on line #line"</span></pre></div> </td> </tr> <tr id="section-16"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-16">#</a> </div> <p>We'd like to support syntax like this:</p>
|
||||
|
||||
<pre><code>el.click((event) ->
|
||||
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="nx">rewriteClosingParens</span><span class="o">:</span> <span class="o">-></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">@scanTokens</span> <span class="p">(</span><span class="nx">prev</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">post</span><span class="p">,</span> <span class="nx">i</span><span class="p">)</span> <span class="o">=></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">></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="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="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">'INDENT'</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-17"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-17">#</a> </div> <p>Generate the indentation tokens, based on another token on the same line.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">indentation</span><span class="o">:</span> <span class="p">(</span><span class="nx">token</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="p">[[</span><span class="s1">'INDENT'</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]],</span> <span class="p">[</span><span class="s1">'OUTDENT'</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="nx">token</span><span class="p">[</span><span class="mi">2</span><span class="p">]]]</span></pre></div> </td> </tr> <tr id="section-18"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-18">#</a> </div> <h2>Constants</h2> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-19"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-19">#</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">'('</span><span class="p">,</span> <span class="s1">')'</span><span class="p">],</span> <span class="p">[</span><span class="s1">'['</span><span class="p">,</span> <span class="s1">']'</span><span class="p">],</span> <span class="p">[</span><span class="s1">'{'</span><span class="p">,</span> <span class="s1">'}'</span><span class="p">],</span> <span class="p">[</span><span class="s1">'INDENT'</span><span class="p">,</span> <span class="s1">'OUTDENT'</span><span class="p">],</span>
|
||||
<span class="p">[</span><span class="s1">'PARAM_START'</span><span class="p">,</span> <span class="s1">'PARAM_END'</span><span class="p">],</span> <span class="p">[</span><span class="s1">'CALL_START'</span><span class="p">,</span> <span class="s1">'CALL_END'</span><span class="p">],</span> <span class="p">[</span><span class="s1">'INDEX_START'</span><span class="p">,</span> <span class="s1">'INDEX_END'</span><span class="p">]]</span></pre></div> </td> </tr> <tr id="section-20"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-20">#</a> </div> <p>The 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-21"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-21">#</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-22"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-22">#</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-23"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-23">#</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">'CATCH'</span><span class="p">,</span> <span class="s1">'WHEN'</span><span class="p">,</span> <span class="s1">'ELSE'</span><span class="p">,</span> <span class="s1">'FINALLY'</span><span class="p">].</span><span class="nx">concat</span> <span class="nx">EXPRESSION_END</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, 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">'IDENTIFIER'</span><span class="p">,</span> <span class="s1">'SUPER'</span><span class="p">,</span> <span class="s1">')'</span><span class="p">,</span> <span class="s1">'CALL_END'</span><span class="p">,</span> <span class="s1">']'</span><span class="p">,</span> <span class="s1">'INDEX_END'</span><span class="p">,</span> <span class="s1">'@'</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>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">'IDENTIFIER'</span><span class="p">,</span> <span class="s1">'NUMBER'</span><span class="p">,</span> <span class="s1">'STRING'</span><span class="p">,</span> <span class="s1">'JS'</span><span class="p">,</span> <span class="s1">'REGEX'</span><span class="p">,</span> <span class="s1">'NEW'</span><span class="p">,</span> <span class="s1">'PARAM_START'</span><span class="p">,</span> <span class="s1">'CLASS'</span><span class="p">,</span>
|
||||
<span class="s1">'TRY'</span><span class="p">,</span> <span class="s1">'DELETE'</span><span class="p">,</span> <span class="s1">'TYPEOF'</span><span class="p">,</span> <span class="s1">'SWITCH'</span><span class="p">,</span> <span class="s1">'THIS'</span><span class="p">,</span> <span class="s1">'NULL'</span><span class="p">,</span>
|
||||
<span class="s1">'TRUE'</span><span class="p">,</span> <span class="s1">'FALSE'</span><span class="p">,</span> <span class="s1">'YES'</span><span class="p">,</span> <span class="s1">'NO'</span><span class="p">,</span> <span class="s1">'ON'</span><span class="p">,</span> <span class="s1">'OFF'</span><span class="p">,</span>
|
||||
<span class="s1">'!'</span><span class="p">,</span> <span class="s1">'!!'</span><span class="p">,</span> <span class="s1">'@'</span><span class="p">,</span> <span class="s1">'->'</span><span class="p">,</span> <span class="s1">'=>'</span><span class="p">,</span> <span class="s1">'['</span><span class="p">,</span> <span class="s1">'('</span><span class="p">,</span> <span class="s1">'{'</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>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">'->'</span><span class="p">,</span> <span class="s1">'=>'</span><span class="p">,</span> <span class="s1">'{'</span><span class="p">,</span> <span class="s1">'['</span><span class="p">,</span> <span class="s1">','</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>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">'IF'</span><span class="p">,</span> <span class="s1">'UNLESS'</span><span class="p">,</span> <span class="s1">'FOR'</span><span class="p">,</span> <span class="s1">'WHILE'</span><span class="p">,</span> <span class="s1">'UNTIL'</span><span class="p">,</span> <span class="s1">'LOOP'</span><span class="p">,</span> <span class="s1">'TERMINATOR'</span><span class="p">,</span> <span class="s1">'INDENT'</span><span class="p">].</span><span class="nx">concat</span> <span class="nx">EXPRESSION_END</span></pre></div> </td> </tr> <tr id="section-28"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-28">#</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">'ELSE'</span><span class="p">,</span> <span class="s2">"->"</span><span class="p">,</span> <span class="s2">"=>"</span><span class="p">,</span> <span class="s1">'TRY'</span><span class="p">,</span> <span class="s1">'FINALLY'</span><span class="p">,</span> <span class="s1">'THEN'</span><span class="p">]</span>
|
||||
<span class="nv">SINGLE_CLOSERS = </span><span class="p">[</span><span class="s1">'TERMINATOR'</span><span class="p">,</span> <span class="s1">'CATCH'</span><span class="p">,</span> <span class="s1">'FINALLY'</span><span class="p">,</span> <span class="s1">'ELSE'</span><span class="p">,</span> <span class="s1">'OUTDENT'</span><span class="p">,</span> <span class="s1">'LEADING_WHEN'</span><span class="p">]</span>
|
||||
|
||||
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>
|
||||
@@ -1,48 +0,0 @@
|
||||
<!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 … <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="nx">@root</span><span class="o">:</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="nx">constructor</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="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="o">=</span> <span class="p">[</span><span class="nx">parent</span><span class="p">,</span> <span class="nx">expressions</span><span class="p">,</span> <span class="nx">method</span><span class="p">]</span>
|
||||
<span class="vi">@variables = </span><span class="p">{}</span>
|
||||
<span class="k">if</span> <span class="nx">@parent</span>
|
||||
<span class="vi">@tempVar = </span><span class="nx">@parent</span><span class="p">.</span><span class="nx">tempVar</span>
|
||||
<span class="k">else</span>
|
||||
<span class="nv">Scope.root = </span><span class="k">this</span>
|
||||
<span class="vi">@tempVar = </span><span class="s1">'_a'</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="nx">find</span><span class="o">:</span> <span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-></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">'var'</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="nx">any</span><span class="o">:</span> <span class="p">(</span><span class="nx">fn</span><span class="p">)</span> <span class="o">-></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="nx">parameter</span><span class="o">:</span> <span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-></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">'param'</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="nx">check</span><span class="o">:</span> <span class="p">(</span><span class="nx">name</span><span class="p">)</span> <span class="o">-></span>
|
||||
<span class="k">return</span> <span class="kc">true</span> <span class="k">if</span> <span class="nx">@variables</span><span class="p">.</span><span class="nx">hasOwnProperty</span> <span class="nx">name</span>
|
||||
<span class="o">!!</span><span class="p">(</span><span class="nx">@parent</span> <span class="o">and</span> <span class="nx">@parent</span><span class="p">.</span><span class="nx">check</span><span class="p">(</span><span class="nx">name</span><span class="p">))</span></pre></div> </td> </tr> <tr id="section-9"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-9">#</a> </div> <p>If we need to store an intermediate result, find an available name for a
|
||||
compiler-generated variable. <code>_a</code>, <code>_b</code>, and so on...</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">freeVariable</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="k">while</span> <span class="nx">@check</span> <span class="nx">@tempVar</span>
|
||||
<span class="nv">ordinal = </span><span class="mi">1</span> <span class="o">+</span> <span class="nb">parseInt</span> <span class="nx">@tempVar</span><span class="p">.</span><span class="nx">substr</span><span class="p">(</span><span class="mi">1</span><span class="p">),</span> <span class="mi">36</span>
|
||||
<span class="vi">@tempVar = </span><span class="s1">'_'</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">'a'</span><span class="p">)</span>
|
||||
<span class="nx">@variables</span><span class="p">[</span><span class="nx">@tempVar</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'var'</span>
|
||||
<span class="nx">@tempVar</span></pre></div> </td> </tr> <tr id="section-10"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-10">#</a> </div> <p>Ensure that an assignment is made at the top of this scope
|
||||
(or at the top-level scope, if requested).</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">assign</span><span class="o">:</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">-></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="nx">value</span><span class="o">:</span> <span class="nx">value</span><span class="p">,</span> <span class="nx">assigned</span><span class="o">:</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>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="nx">hasDeclarations</span><span class="o">:</span> <span class="p">(</span><span class="nx">body</span><span class="p">)</span> <span class="o">-></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">-></span> <span class="nx">val</span> <span class="o">is</span> <span class="s1">'var'</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="nx">hasAssignments</span><span class="o">:</span> <span class="p">(</span><span class="nx">body</span><span class="p">)</span> <span class="o">-></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">-></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="nx">declaredVariables</span><span class="o">:</span> <span class="o">-></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">'var'</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="nx">assignedVariables</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="s2">"#key = #val.value"</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="nx">compiledDeclarations</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nx">@declaredVariables</span><span class="p">().</span><span class="nx">join</span> <span class="s1">', '</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="nx">compiledAssignments</span><span class="o">:</span> <span class="o">-></span>
|
||||
<span class="nx">@assignedVariables</span><span class="p">().</span><span class="nx">join</span> <span class="s1">', '</span>
|
||||
|
||||
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>
|
||||
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|
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Load Diff
@@ -1,15 +1,13 @@
|
||||
var volume, winner;
|
||||
if (ignition === true) {
|
||||
launch();
|
||||
}
|
||||
if (band !== SpinalTap) {
|
||||
volume = 10;
|
||||
}
|
||||
if (!(answer === false)) {
|
||||
letTheWildRumpusBegin();
|
||||
}
|
||||
car.speed < limit ? accelerate() : null;
|
||||
if (47 === pick || 92 === pick || 13 === pick) {
|
||||
winner = true;
|
||||
}
|
||||
print(inspect("My name is " + this.name));
|
||||
(function(){
|
||||
if (ignition === true) {
|
||||
launch();
|
||||
}
|
||||
var volume;
|
||||
if (band !== spinal_tap) {
|
||||
volume = 10;
|
||||
}
|
||||
if (!(answer === false)) {
|
||||
let_the_wild_rumpus_begin();
|
||||
}
|
||||
car.speed < speed_limit ? accelerate() : null;
|
||||
})();
|
||||
@@ -1,22 +1,19 @@
|
||||
var _a, _b, _c, _d, _e, _f, _g, _h, _i, _j, food, lunch, roid, roid2;
|
||||
lunch = (function() {
|
||||
_a = []; _c = ['toast', 'cheese', 'wine'];
|
||||
for (_b = 0, _d = _c.length; _b < _d; _b++) {
|
||||
food = _c[_b];
|
||||
_a.push(eat(food));
|
||||
(function(){
|
||||
|
||||
// Eat lunch.
|
||||
var lunch;
|
||||
var a = ['toast', 'cheese', 'wine'];
|
||||
var d = [];
|
||||
for (var b=0, c=a.length; b<c; b++) {
|
||||
var food = a[b];
|
||||
d[b] = food.eat();
|
||||
}
|
||||
return _a;
|
||||
})();
|
||||
_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();
|
||||
}
|
||||
}
|
||||
lunch = d;
|
||||
// Zebra-stripe a table.
|
||||
var e = table;
|
||||
for (var f=0, g=e.length; f<g; f++) {
|
||||
var row = e[f];
|
||||
var i = f;
|
||||
i % 2 === 0 ? highlight(row) : null;
|
||||
}
|
||||
}
|
||||
})();
|
||||
4
documentation/js/assignment.js
Normal file
4
documentation/js/assignment.js
Normal file
@@ -0,0 +1,4 @@
|
||||
(function(){
|
||||
var greeting = "Hello CoffeeScript";
|
||||
var difficulty = 0.5;
|
||||
})();
|
||||
@@ -1,4 +0,0 @@
|
||||
/*
|
||||
CoffeeScript Compiler v0.9.0
|
||||
Released under the MIT License
|
||||
*/
|
||||
@@ -1,10 +0,0 @@
|
||||
var fs;
|
||||
fs = require('fs');
|
||||
option('-o', '--output [DIR]', 'directory for compiled code');
|
||||
task('build:parser', 'rebuild the Jison parser', function() {
|
||||
var code, dir;
|
||||
require('jison');
|
||||
code = require('./lib/grammar').parser.generate();
|
||||
dir = options.output || 'lib';
|
||||
return fs.writeFile(("" + dir + "/parser.js"), code);
|
||||
});
|
||||
@@ -1,36 +0,0 @@
|
||||
var Animal, Horse, Snake, sam, tom;
|
||||
var __extends = function(child, parent) {
|
||||
var ctor = function(){};
|
||||
ctor.prototype = parent.prototype;
|
||||
child.prototype = new ctor();
|
||||
child.prototype.constructor = child;
|
||||
if (typeof parent.extended === "function") parent.extended(child);
|
||||
child.__superClass__ = parent.prototype;
|
||||
};
|
||||
Animal = function(_a) {
|
||||
this.name = _a;
|
||||
return this;
|
||||
};
|
||||
Animal.prototype.move = function(meters) {
|
||||
return alert(this.name + " moved " + meters + "m.");
|
||||
};
|
||||
Snake = function() {
|
||||
return Animal.apply(this, arguments);
|
||||
};
|
||||
__extends(Snake, Animal);
|
||||
Snake.prototype.move = function() {
|
||||
alert("Slithering...");
|
||||
return Snake.__superClass__.move.call(this, 5);
|
||||
};
|
||||
Horse = function() {
|
||||
return Animal.apply(this, arguments);
|
||||
};
|
||||
__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();
|
||||
@@ -1,3 +0,0 @@
|
||||
var cholesterol, healthy;
|
||||
cholesterol = 127;
|
||||
healthy = (200 > cholesterol) && (cholesterol > 60);
|
||||
@@ -1,12 +1,12 @@
|
||||
var date, mood, options;
|
||||
if (singing) {
|
||||
mood = greatlyImproved;
|
||||
}
|
||||
if (happy && knowsIt) {
|
||||
clapsHands();
|
||||
chaChaCha();
|
||||
} else {
|
||||
showIt();
|
||||
}
|
||||
date = friday ? sue : jill;
|
||||
options = options || defaults;
|
||||
(function(){
|
||||
var mood;
|
||||
if (singing) {
|
||||
mood = greatly_improved;
|
||||
}
|
||||
if (happy && knows_it) {
|
||||
claps_hands();
|
||||
cha_cha_cha();
|
||||
}
|
||||
var date = friday ? sue : jill;
|
||||
expensive = expensive || do_the_math();
|
||||
})();
|
||||
@@ -1,4 +1,5 @@
|
||||
var hi;
|
||||
hi = function() {
|
||||
(function(){
|
||||
var hi = function() {
|
||||
return [document.title, "Hello JavaScript"].join(": ");
|
||||
};
|
||||
};
|
||||
})();
|
||||
@@ -1,5 +0,0 @@
|
||||
var solipsism, speed;
|
||||
if ((typeof mind !== "undefined" && mind !== null) && !(typeof world !== "undefined" && world !== null)) {
|
||||
solipsism = true;
|
||||
}
|
||||
speed = (typeof speed !== "undefined" && speed !== null) ? speed : 140;
|
||||
@@ -1,11 +1,12 @@
|
||||
var eldest, grade;
|
||||
grade = function(student) {
|
||||
if (student.excellentWork) {
|
||||
return "A+";
|
||||
} else if (student.okayStuff) {
|
||||
return student.triedHard ? "B" : "B-";
|
||||
} else {
|
||||
return "C";
|
||||
}
|
||||
};
|
||||
eldest = 24 > 21 ? "Liz" : "Ike";
|
||||
(function(){
|
||||
var grade = function(student) {
|
||||
if (student.excellent_work) {
|
||||
return "A+";
|
||||
} else if (student.okay_stuff) {
|
||||
return student.tried_hard ? "B" : "B-";
|
||||
} else {
|
||||
return "C";
|
||||
}
|
||||
};
|
||||
var eldest = 24 > 21 ? "Liz" : "Ike";
|
||||
})();
|
||||
@@ -1,2 +0,0 @@
|
||||
var one, six, three, two;
|
||||
six = (one = 1) + (two = 2) + (three = 3);
|
||||
@@ -1,11 +0,0 @@
|
||||
var _a, _b, _c, globals, name;
|
||||
var __hasProp = Object.prototype.hasOwnProperty;
|
||||
globals = (function() {
|
||||
_b = []; _c = window;
|
||||
for (name in _c) {
|
||||
if (!__hasProp.call(_c, name)) continue;
|
||||
_a = _c[name];
|
||||
_b.push(name);
|
||||
}
|
||||
return _b;
|
||||
})().slice(0, 10);
|
||||
@@ -1,7 +0,0 @@
|
||||
alert((function() {
|
||||
try {
|
||||
return nonexistent / undefined;
|
||||
} catch (error) {
|
||||
return "And the error is ... " + error;
|
||||
}
|
||||
})());
|
||||
@@ -1,11 +0,0 @@
|
||||
var Account;
|
||||
var __bind = function(func, context) {
|
||||
return function(){ return func.apply(context, arguments); };
|
||||
};
|
||||
Account = function(customer, cart) {
|
||||
this.customer = customer;
|
||||
this.cart = cart;
|
||||
return $('.shopping_cart').bind('click', __bind(function(event) {
|
||||
return this.customer.purchase(this.cart);
|
||||
}, this));
|
||||
};
|
||||
@@ -1,7 +1,8 @@
|
||||
var cube, square;
|
||||
square = function(x) {
|
||||
return x * x;
|
||||
};
|
||||
cube = function(x) {
|
||||
return square(x) * x;
|
||||
};
|
||||
(function(){
|
||||
var square = function(x) {
|
||||
return x * x;
|
||||
};
|
||||
var cube = function(x) {
|
||||
return square(x) * x;
|
||||
};
|
||||
})();
|
||||
@@ -1,2 +0,0 @@
|
||||
var html;
|
||||
html = '<strong>\n cup of coffeescript\n</strong>';
|
||||
@@ -1,3 +0,0 @@
|
||||
var author, quote;
|
||||
author = "Wittgenstein";
|
||||
quote = ("A picture is a fact. -- " + author);
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user