regex.coffee
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# Copyright 2014, 2015 Simon Lydell
# X11 (“MIT”) Licensed. (See LICENSE.)
# <http://es5.github.io/#A.1>
# <http://people.mozilla.org/~jorendorff/es6-draft.html#sec-ecmascript-language-lexical-grammar>
# Don’t worry, you don’t need to know CoffeeScript. It is only used for its
# readable regex syntax. Everything else is done in JavaScript in index.js.
module.exports = ///
( # <string>
([ ' " ])
(?:
(?! \2 | \\ ).
|
\\(?: \r\n | [\s\S] )
)*
(\2)?
|
`
(?:
[^ ` \\ $ ]
|
\\[\s\S]
|
\$(?!\{)
|
\$\{
(?:
[^{}]
|
\{ [^}]* \}?
)*
\}?
)*
(`)?
)
|
( # <comment>
//.*
)
|
( # <comment>
/\*
(?:
[^*]
|
\*(?!/)
)*
( \*/ )?
)
|
( # <regex>
/(?!\*)
(?:
\[
(?:
(?![ \] \\ ]).
|
\\.
)*
\]
|
(?![ / \] \\ ]).
|
\\.
)+
/
(?:
(?!
\s*
(?:
\b
|
[ \u0080-\uFFFF $ \\ ' " ~ ( { ]
|
[ + \- ! ](?!=)
|
\.?\d
)
)
|
[ g m i y u ]{1,5} \b
(?!
[ \u0080-\uFFFF $ \\ ]
|
\s*
(?:
[ + \- * % & | ^ < > ! = ? ( { ]
|
/(?! [ / * ] )
)
)
)
)
|
( # <number>
(?:
0[xX][ \d a-f A-F ]+
|
0[oO][0-7]+
|
0[bB][01]+
|
(?:
\d*\.\d+
|
\d+\.? # Support one trailing dot for integers only.
)
(?: [eE][+-]?\d+ )?
)
)
|
( # <name>
# See <http://mathiasbynens.be/notes/javascript-identifiers>.
(?!\d)
(?:
(?!\s)[ $ \w \u0080-\uFFFF ]
|
\\u[ \d a-f A-F ]{4}
|
\\u\{[ \d a-f A-F ]{1,6}\}
)+
)
|
( # <punctuator>
-- | \+\+
|
&& | \|\|
|
=>
|
\.{3}
|
(?:
[ + \- * / % & | ^ ]
|
<{1,2} | >{1,3}
|
!=? | ={1,2}
)=?
|
[ ? : ~ ]
|
[ ; , . [ \] ( ) { } ]
)
|
( # <whitespace>
\s+
)
|
( # <invalid>
^$ # Empty.
|
[\s\S] # Catch-all rule for anything not matched by the above.
)
///g