Class: Rouge::Lexers::Javascript

Inherits:
RegexLexer show all
Defined in:
lib/rouge/lexers/javascript.rb

Overview

IMPORTANT NOTICE:

Please do not copy this lexer and open a pull request for a new language. It will not get merged, you will be unhappy, and kittens will cry.

Direct Known Subclasses

JSX, Qml, Typescript

Constant Summary

Constants inherited from RegexLexer

RegexLexer::MAX_NULL_SCANS

Constants included from Token::Tokens

Token::Tokens::Num, Token::Tokens::Str

Class Method Summary collapse

Methods inherited from RegexLexer

append, #delegate, get_state, #get_state, #goto, #group, #groups, #in_state?, #pop!, prepend, #push, #recurse, replace_state, #reset!, #reset_stack, #stack, start, start_procs, #state, state, #state?, state_definitions, states, #step, #stream_tokens, #token

Methods inherited from Rouge::Lexer

aliases, all, assert_utf8!, #debug, default_options, demo, demo_file, desc, filenames, find, find_fancy, guess, guess_by_filename, guess_by_mimetype, guess_by_source, guesses, #initialize, lex, #lex, mimetypes, #option, #options, #reset!, #stream_tokens, tag, #tag, title

Methods included from Token::Tokens

token

Constructor Details

This class inherits a constructor from Rouge::Lexer

Class Method Details

.analyze_text(text) ⇒ Object 



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# File 'lib/rouge/lexers/javascript.rb', line 21

def self.analyze_text(text)
  return 1 if text.shebang?('node')
  return 1 if text.shebang?('jsc')
  # TODO: rhino, spidermonkey, etc
end

.builtins ⇒ Object 



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# File 'lib/rouge/lexers/javascript.rb', line 123

def self.builtins
  @builtins ||= %w(
    Array Boolean Date Error Function Math netscape
    Number Object Packages RegExp String sun decodeURI
    decodeURIComponent encodeURI encodeURIComponent
    Error eval isFinite isNaN parseFloat parseInt document this
    window
  )
end

.constants ⇒ Object 



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# File 'lib/rouge/lexers/javascript.rb', line 119

def self.constants
  @constants ||= Set.new %w(true false null NaN Infinity undefined)
end

.declarations ⇒ Object 



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# File 'lib/rouge/lexers/javascript.rb', line 106

def self.declarations
  @declarations ||= Set.new %w(var let with function)
end

.id_regex ⇒ Object 



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# File 'lib/rouge/lexers/javascript.rb', line 133

def self.id_regex
  /[$a-z_][a-z0-9_]*/io
end

.keywords ⇒ Object 



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# File 'lib/rouge/lexers/javascript.rb', line 98

def self.keywords
  @keywords ||= Set.new %w(
    for in while do break return continue switch case default
    if else throw try catch finally new delete typeof instanceof
    void this yield
  )
end

.reserved ⇒ Object 



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# File 'lib/rouge/lexers/javascript.rb', line 110

def self.reserved
  @reserved ||= Set.new %w(
    abstract boolean byte char class const debugger double enum
    export extends final float goto implements import int interface
    long native package private protected public short static
    super synchronized throws transient volatile
  )
end