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lua.js
159 lines
| 5.8 KiB
| application/javascript
|
JavascriptLexer
r1 | // CodeMirror, copyright (c) by Marijn Haverbeke and others | |||
// Distributed under an MIT license: http://codemirror.net/LICENSE | ||||
// LUA mode. Ported to CodeMirror 2 from Franciszek Wawrzak's | ||||
// CodeMirror 1 mode. | ||||
// highlights keywords, strings, comments (no leveling supported! ("[==[")), tokens, basic indenting | ||||
(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("lua", function(config, parserConfig) { | ||||
var indentUnit = config.indentUnit; | ||||
function prefixRE(words) { | ||||
return new RegExp("^(?:" + words.join("|") + ")", "i"); | ||||
} | ||||
function wordRE(words) { | ||||
return new RegExp("^(?:" + words.join("|") + ")$", "i"); | ||||
} | ||||
var specials = wordRE(parserConfig.specials || []); | ||||
// long list of standard functions from lua manual | ||||
var builtins = wordRE([ | ||||
"_G","_VERSION","assert","collectgarbage","dofile","error","getfenv","getmetatable","ipairs","load", | ||||
"loadfile","loadstring","module","next","pairs","pcall","print","rawequal","rawget","rawset","require", | ||||
"select","setfenv","setmetatable","tonumber","tostring","type","unpack","xpcall", | ||||
"coroutine.create","coroutine.resume","coroutine.running","coroutine.status","coroutine.wrap","coroutine.yield", | ||||
"debug.debug","debug.getfenv","debug.gethook","debug.getinfo","debug.getlocal","debug.getmetatable", | ||||
"debug.getregistry","debug.getupvalue","debug.setfenv","debug.sethook","debug.setlocal","debug.setmetatable", | ||||
"debug.setupvalue","debug.traceback", | ||||
"close","flush","lines","read","seek","setvbuf","write", | ||||
"io.close","io.flush","io.input","io.lines","io.open","io.output","io.popen","io.read","io.stderr","io.stdin", | ||||
"io.stdout","io.tmpfile","io.type","io.write", | ||||
"math.abs","math.acos","math.asin","math.atan","math.atan2","math.ceil","math.cos","math.cosh","math.deg", | ||||
"math.exp","math.floor","math.fmod","math.frexp","math.huge","math.ldexp","math.log","math.log10","math.max", | ||||
"math.min","math.modf","math.pi","math.pow","math.rad","math.random","math.randomseed","math.sin","math.sinh", | ||||
"math.sqrt","math.tan","math.tanh", | ||||
"os.clock","os.date","os.difftime","os.execute","os.exit","os.getenv","os.remove","os.rename","os.setlocale", | ||||
"os.time","os.tmpname", | ||||
"package.cpath","package.loaded","package.loaders","package.loadlib","package.path","package.preload", | ||||
"package.seeall", | ||||
"string.byte","string.char","string.dump","string.find","string.format","string.gmatch","string.gsub", | ||||
"string.len","string.lower","string.match","string.rep","string.reverse","string.sub","string.upper", | ||||
"table.concat","table.insert","table.maxn","table.remove","table.sort" | ||||
]); | ||||
var keywords = wordRE(["and","break","elseif","false","nil","not","or","return", | ||||
"true","function", "end", "if", "then", "else", "do", | ||||
"while", "repeat", "until", "for", "in", "local" ]); | ||||
var indentTokens = wordRE(["function", "if","repeat","do", "\\(", "{"]); | ||||
var dedentTokens = wordRE(["end", "until", "\\)", "}"]); | ||||
var dedentPartial = prefixRE(["end", "until", "\\)", "}", "else", "elseif"]); | ||||
function readBracket(stream) { | ||||
var level = 0; | ||||
while (stream.eat("=")) ++level; | ||||
stream.eat("["); | ||||
return level; | ||||
} | ||||
function normal(stream, state) { | ||||
var ch = stream.next(); | ||||
if (ch == "-" && stream.eat("-")) { | ||||
if (stream.eat("[") && stream.eat("[")) | ||||
return (state.cur = bracketed(readBracket(stream), "comment"))(stream, state); | ||||
stream.skipToEnd(); | ||||
return "comment"; | ||||
} | ||||
if (ch == "\"" || ch == "'") | ||||
return (state.cur = string(ch))(stream, state); | ||||
if (ch == "[" && /[\[=]/.test(stream.peek())) | ||||
return (state.cur = bracketed(readBracket(stream), "string"))(stream, state); | ||||
if (/\d/.test(ch)) { | ||||
stream.eatWhile(/[\w.%]/); | ||||
return "number"; | ||||
} | ||||
if (/[\w_]/.test(ch)) { | ||||
stream.eatWhile(/[\w\\\-_.]/); | ||||
return "variable"; | ||||
} | ||||
return null; | ||||
} | ||||
function bracketed(level, style) { | ||||
return function(stream, state) { | ||||
var curlev = null, ch; | ||||
while ((ch = stream.next()) != null) { | ||||
if (curlev == null) {if (ch == "]") curlev = 0;} | ||||
else if (ch == "=") ++curlev; | ||||
else if (ch == "]" && curlev == level) { state.cur = normal; break; } | ||||
else curlev = null; | ||||
} | ||||
return style; | ||||
}; | ||||
} | ||||
function string(quote) { | ||||
return function(stream, state) { | ||||
var escaped = false, ch; | ||||
while ((ch = stream.next()) != null) { | ||||
if (ch == quote && !escaped) break; | ||||
escaped = !escaped && ch == "\\"; | ||||
} | ||||
if (!escaped) state.cur = normal; | ||||
return "string"; | ||||
}; | ||||
} | ||||
return { | ||||
startState: function(basecol) { | ||||
return {basecol: basecol || 0, indentDepth: 0, cur: normal}; | ||||
}, | ||||
token: function(stream, state) { | ||||
if (stream.eatSpace()) return null; | ||||
var style = state.cur(stream, state); | ||||
var word = stream.current(); | ||||
if (style == "variable") { | ||||
if (keywords.test(word)) style = "keyword"; | ||||
else if (builtins.test(word)) style = "builtin"; | ||||
else if (specials.test(word)) style = "variable-2"; | ||||
} | ||||
if ((style != "comment") && (style != "string")){ | ||||
if (indentTokens.test(word)) ++state.indentDepth; | ||||
else if (dedentTokens.test(word)) --state.indentDepth; | ||||
} | ||||
return style; | ||||
}, | ||||
indent: function(state, textAfter) { | ||||
var closing = dedentPartial.test(textAfter); | ||||
return state.basecol + indentUnit * (state.indentDepth - (closing ? 1 : 0)); | ||||
}, | ||||
lineComment: "--", | ||||
blockCommentStart: "--[[", | ||||
blockCommentEnd: "]]" | ||||
}; | ||||
}); | ||||
CodeMirror.defineMIME("text/x-lua", "lua"); | ||||
}); | ||||