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ruby.js
285 lines
| 10.2 KiB
| application/javascript
|
JavascriptLexer
r1 | // CodeMirror, copyright (c) by Marijn Haverbeke and others | |||
// Distributed under an MIT license: http://codemirror.net/LICENSE | ||||
(function(mod) { | ||||
if (typeof exports == "object" && typeof module == "object") // CommonJS | ||||
mod(require("../../lib/codemirror")); | ||||
else if (typeof define == "function" && define.amd) // AMD | ||||
define(["../../lib/codemirror"], mod); | ||||
else // Plain browser env | ||||
mod(CodeMirror); | ||||
})(function(CodeMirror) { | ||||
"use strict"; | ||||
CodeMirror.defineMode("ruby", function(config) { | ||||
function wordObj(words) { | ||||
var o = {}; | ||||
for (var i = 0, e = words.length; i < e; ++i) o[words[i]] = true; | ||||
return o; | ||||
} | ||||
var keywords = wordObj([ | ||||
"alias", "and", "BEGIN", "begin", "break", "case", "class", "def", "defined?", "do", "else", | ||||
"elsif", "END", "end", "ensure", "false", "for", "if", "in", "module", "next", "not", "or", | ||||
"redo", "rescue", "retry", "return", "self", "super", "then", "true", "undef", "unless", | ||||
"until", "when", "while", "yield", "nil", "raise", "throw", "catch", "fail", "loop", "callcc", | ||||
"caller", "lambda", "proc", "public", "protected", "private", "require", "load", | ||||
"require_relative", "extend", "autoload", "__END__", "__FILE__", "__LINE__", "__dir__" | ||||
]); | ||||
var indentWords = wordObj(["def", "class", "case", "for", "while", "module", "then", | ||||
"catch", "loop", "proc", "begin"]); | ||||
var dedentWords = wordObj(["end", "until"]); | ||||
var matching = {"[": "]", "{": "}", "(": ")"}; | ||||
var curPunc; | ||||
function chain(newtok, stream, state) { | ||||
state.tokenize.push(newtok); | ||||
return newtok(stream, state); | ||||
} | ||||
function tokenBase(stream, state) { | ||||
curPunc = null; | ||||
if (stream.sol() && stream.match("=begin") && stream.eol()) { | ||||
state.tokenize.push(readBlockComment); | ||||
return "comment"; | ||||
} | ||||
if (stream.eatSpace()) return null; | ||||
var ch = stream.next(), m; | ||||
if (ch == "`" || ch == "'" || ch == '"') { | ||||
return chain(readQuoted(ch, "string", ch == '"' || ch == "`"), stream, state); | ||||
} else if (ch == "/") { | ||||
var currentIndex = stream.current().length; | ||||
if (stream.skipTo("/")) { | ||||
var search_till = stream.current().length; | ||||
stream.backUp(stream.current().length - currentIndex); | ||||
var balance = 0; // balance brackets | ||||
while (stream.current().length < search_till) { | ||||
var chchr = stream.next(); | ||||
if (chchr == "(") balance += 1; | ||||
else if (chchr == ")") balance -= 1; | ||||
if (balance < 0) break; | ||||
} | ||||
stream.backUp(stream.current().length - currentIndex); | ||||
if (balance == 0) | ||||
return chain(readQuoted(ch, "string-2", true), stream, state); | ||||
} | ||||
return "operator"; | ||||
} else if (ch == "%") { | ||||
var style = "string", embed = true; | ||||
if (stream.eat("s")) style = "atom"; | ||||
else if (stream.eat(/[WQ]/)) style = "string"; | ||||
else if (stream.eat(/[r]/)) style = "string-2"; | ||||
else if (stream.eat(/[wxq]/)) { style = "string"; embed = false; } | ||||
var delim = stream.eat(/[^\w\s=]/); | ||||
if (!delim) return "operator"; | ||||
if (matching.propertyIsEnumerable(delim)) delim = matching[delim]; | ||||
return chain(readQuoted(delim, style, embed, true), stream, state); | ||||
} else if (ch == "#") { | ||||
stream.skipToEnd(); | ||||
return "comment"; | ||||
} else if (ch == "<" && (m = stream.match(/^<-?[\`\"\']?([a-zA-Z_?]\w*)[\`\"\']?(?:;|$)/))) { | ||||
return chain(readHereDoc(m[1]), stream, state); | ||||
} else if (ch == "0") { | ||||
if (stream.eat("x")) stream.eatWhile(/[\da-fA-F]/); | ||||
else if (stream.eat("b")) stream.eatWhile(/[01]/); | ||||
else stream.eatWhile(/[0-7]/); | ||||
return "number"; | ||||
} else if (/\d/.test(ch)) { | ||||
stream.match(/^[\d_]*(?:\.[\d_]+)?(?:[eE][+\-]?[\d_]+)?/); | ||||
return "number"; | ||||
} else if (ch == "?") { | ||||
while (stream.match(/^\\[CM]-/)) {} | ||||
if (stream.eat("\\")) stream.eatWhile(/\w/); | ||||
else stream.next(); | ||||
return "string"; | ||||
} else if (ch == ":") { | ||||
if (stream.eat("'")) return chain(readQuoted("'", "atom", false), stream, state); | ||||
if (stream.eat('"')) return chain(readQuoted('"', "atom", true), stream, state); | ||||
// :> :>> :< :<< are valid symbols | ||||
if (stream.eat(/[\<\>]/)) { | ||||
stream.eat(/[\<\>]/); | ||||
return "atom"; | ||||
} | ||||
// :+ :- :/ :* :| :& :! are valid symbols | ||||
if (stream.eat(/[\+\-\*\/\&\|\:\!]/)) { | ||||
return "atom"; | ||||
} | ||||
// Symbols can't start by a digit | ||||
if (stream.eat(/[a-zA-Z$@_\xa1-\uffff]/)) { | ||||
stream.eatWhile(/[\w$\xa1-\uffff]/); | ||||
// Only one ? ! = is allowed and only as the last character | ||||
stream.eat(/[\?\!\=]/); | ||||
return "atom"; | ||||
} | ||||
return "operator"; | ||||
} else if (ch == "@" && stream.match(/^@?[a-zA-Z_\xa1-\uffff]/)) { | ||||
stream.eat("@"); | ||||
stream.eatWhile(/[\w\xa1-\uffff]/); | ||||
return "variable-2"; | ||||
} else if (ch == "$") { | ||||
if (stream.eat(/[a-zA-Z_]/)) { | ||||
stream.eatWhile(/[\w]/); | ||||
} else if (stream.eat(/\d/)) { | ||||
stream.eat(/\d/); | ||||
} else { | ||||
stream.next(); // Must be a special global like $: or $! | ||||
} | ||||
return "variable-3"; | ||||
} else if (/[a-zA-Z_\xa1-\uffff]/.test(ch)) { | ||||
stream.eatWhile(/[\w\xa1-\uffff]/); | ||||
stream.eat(/[\?\!]/); | ||||
if (stream.eat(":")) return "atom"; | ||||
return "ident"; | ||||
} else if (ch == "|" && (state.varList || state.lastTok == "{" || state.lastTok == "do")) { | ||||
curPunc = "|"; | ||||
return null; | ||||
} else if (/[\(\)\[\]{}\\;]/.test(ch)) { | ||||
curPunc = ch; | ||||
return null; | ||||
} else if (ch == "-" && stream.eat(">")) { | ||||
return "arrow"; | ||||
} else if (/[=+\-\/*:\.^%<>~|]/.test(ch)) { | ||||
var more = stream.eatWhile(/[=+\-\/*:\.^%<>~|]/); | ||||
if (ch == "." && !more) curPunc = "."; | ||||
return "operator"; | ||||
} else { | ||||
return null; | ||||
} | ||||
} | ||||
function tokenBaseUntilBrace(depth) { | ||||
if (!depth) depth = 1; | ||||
return function(stream, state) { | ||||
if (stream.peek() == "}") { | ||||
if (depth == 1) { | ||||
state.tokenize.pop(); | ||||
return state.tokenize[state.tokenize.length-1](stream, state); | ||||
} else { | ||||
state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth - 1); | ||||
} | ||||
} else if (stream.peek() == "{") { | ||||
state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth + 1); | ||||
} | ||||
return tokenBase(stream, state); | ||||
}; | ||||
} | ||||
function tokenBaseOnce() { | ||||
var alreadyCalled = false; | ||||
return function(stream, state) { | ||||
if (alreadyCalled) { | ||||
state.tokenize.pop(); | ||||
return state.tokenize[state.tokenize.length-1](stream, state); | ||||
} | ||||
alreadyCalled = true; | ||||
return tokenBase(stream, state); | ||||
}; | ||||
} | ||||
function readQuoted(quote, style, embed, unescaped) { | ||||
return function(stream, state) { | ||||
var escaped = false, ch; | ||||
if (state.context.type === 'read-quoted-paused') { | ||||
state.context = state.context.prev; | ||||
stream.eat("}"); | ||||
} | ||||
while ((ch = stream.next()) != null) { | ||||
if (ch == quote && (unescaped || !escaped)) { | ||||
state.tokenize.pop(); | ||||
break; | ||||
} | ||||
if (embed && ch == "#" && !escaped) { | ||||
if (stream.eat("{")) { | ||||
if (quote == "}") { | ||||
state.context = {prev: state.context, type: 'read-quoted-paused'}; | ||||
} | ||||
state.tokenize.push(tokenBaseUntilBrace()); | ||||
break; | ||||
} else if (/[@\$]/.test(stream.peek())) { | ||||
state.tokenize.push(tokenBaseOnce()); | ||||
break; | ||||
} | ||||
} | ||||
escaped = !escaped && ch == "\\"; | ||||
} | ||||
return style; | ||||
}; | ||||
} | ||||
function readHereDoc(phrase) { | ||||
return function(stream, state) { | ||||
if (stream.match(phrase)) state.tokenize.pop(); | ||||
else stream.skipToEnd(); | ||||
return "string"; | ||||
}; | ||||
} | ||||
function readBlockComment(stream, state) { | ||||
if (stream.sol() && stream.match("=end") && stream.eol()) | ||||
state.tokenize.pop(); | ||||
stream.skipToEnd(); | ||||
return "comment"; | ||||
} | ||||
return { | ||||
startState: function() { | ||||
return {tokenize: [tokenBase], | ||||
indented: 0, | ||||
context: {type: "top", indented: -config.indentUnit}, | ||||
continuedLine: false, | ||||
lastTok: null, | ||||
varList: false}; | ||||
}, | ||||
token: function(stream, state) { | ||||
if (stream.sol()) state.indented = stream.indentation(); | ||||
var style = state.tokenize[state.tokenize.length-1](stream, state), kwtype; | ||||
var thisTok = curPunc; | ||||
if (style == "ident") { | ||||
var word = stream.current(); | ||||
style = state.lastTok == "." ? "property" | ||||
: keywords.propertyIsEnumerable(stream.current()) ? "keyword" | ||||
: /^[A-Z]/.test(word) ? "tag" | ||||
: (state.lastTok == "def" || state.lastTok == "class" || state.varList) ? "def" | ||||
: "variable"; | ||||
if (style == "keyword") { | ||||
thisTok = word; | ||||
if (indentWords.propertyIsEnumerable(word)) kwtype = "indent"; | ||||
else if (dedentWords.propertyIsEnumerable(word)) kwtype = "dedent"; | ||||
else if ((word == "if" || word == "unless") && stream.column() == stream.indentation()) | ||||
kwtype = "indent"; | ||||
else if (word == "do" && state.context.indented < state.indented) | ||||
kwtype = "indent"; | ||||
} | ||||
} | ||||
if (curPunc || (style && style != "comment")) state.lastTok = thisTok; | ||||
if (curPunc == "|") state.varList = !state.varList; | ||||
if (kwtype == "indent" || /[\(\[\{]/.test(curPunc)) | ||||
state.context = {prev: state.context, type: curPunc || style, indented: state.indented}; | ||||
else if ((kwtype == "dedent" || /[\)\]\}]/.test(curPunc)) && state.context.prev) | ||||
state.context = state.context.prev; | ||||
if (stream.eol()) | ||||
state.continuedLine = (curPunc == "\\" || style == "operator"); | ||||
return style; | ||||
}, | ||||
indent: function(state, textAfter) { | ||||
if (state.tokenize[state.tokenize.length-1] != tokenBase) return 0; | ||||
var firstChar = textAfter && textAfter.charAt(0); | ||||
var ct = state.context; | ||||
var closing = ct.type == matching[firstChar] || | ||||
ct.type == "keyword" && /^(?:end|until|else|elsif|when|rescue)\b/.test(textAfter); | ||||
return ct.indented + (closing ? 0 : config.indentUnit) + | ||||
(state.continuedLine ? config.indentUnit : 0); | ||||
}, | ||||
electricChars: "}de", // enD and rescuE | ||||
lineComment: "#" | ||||
}; | ||||
}); | ||||
CodeMirror.defineMIME("text/x-ruby", "ruby"); | ||||
}); | ||||