File modules/editor/codemirror/mode/lua/lua.js

Last commit: Sun Dec 17 01:14:09 2017 +0100	Jan Dankert	Integration eines weiteren Code-Editors: Codemirror. Demnächst müssen wir hier mal aufräumen und andere Editoren rauswerfen.


     1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
     2 // Distributed under an MIT license: http://codemirror.net/LICENSE
     3 
     4 // LUA mode. Ported to CodeMirror 2 from Franciszek Wawrzak's
     5 // CodeMirror 1 mode.
     6 // highlights keywords, strings, comments (no leveling supported! ("[==[")), tokens, basic indenting
     7 
     8 (function(mod) {
     9   if (typeof exports == "object" && typeof module == "object") // CommonJS
    10     mod(require("../../lib/codemirror"));
    11   else if (typeof define == "function" && define.amd) // AMD
    12     define(["../../lib/codemirror"], mod);
    13   else // Plain browser env
    14     mod(CodeMirror);
    15 })(function(CodeMirror) {
    16 "use strict";
    17 
    18 CodeMirror.defineMode("lua", function(config, parserConfig) {
    19   var indentUnit = config.indentUnit;
    20 
    21   function prefixRE(words) {
    22     return new RegExp("^(?:" + words.join("|") + ")", "i");
    23   }
    24   function wordRE(words) {
    25     return new RegExp("^(?:" + words.join("|") + ")$", "i");
    26   }
    27   var specials = wordRE(parserConfig.specials || []);
    28 
    29   // long list of standard functions from lua manual
    30   var builtins = wordRE([
    31     "_G","_VERSION","assert","collectgarbage","dofile","error","getfenv","getmetatable","ipairs","load",
    32     "loadfile","loadstring","module","next","pairs","pcall","print","rawequal","rawget","rawset","require",
    33     "select","setfenv","setmetatable","tonumber","tostring","type","unpack","xpcall",
    34 
    35     "coroutine.create","coroutine.resume","coroutine.running","coroutine.status","coroutine.wrap","coroutine.yield",
    36 
    37     "debug.debug","debug.getfenv","debug.gethook","debug.getinfo","debug.getlocal","debug.getmetatable",
    38     "debug.getregistry","debug.getupvalue","debug.setfenv","debug.sethook","debug.setlocal","debug.setmetatable",
    39     "debug.setupvalue","debug.traceback",
    40 
    41     "close","flush","lines","read","seek","setvbuf","write",
    42 
    43     "io.close","io.flush","io.input","io.lines","io.open","io.output","io.popen","io.read","io.stderr","io.stdin",
    44     "io.stdout","io.tmpfile","io.type","io.write",
    45 
    46     "math.abs","math.acos","math.asin","math.atan","math.atan2","math.ceil","math.cos","math.cosh","math.deg",
    47     "math.exp","math.floor","math.fmod","math.frexp","math.huge","math.ldexp","math.log","math.log10","math.max",
    48     "math.min","math.modf","math.pi","math.pow","math.rad","math.random","math.randomseed","math.sin","math.sinh",
    49     "math.sqrt","math.tan","math.tanh",
    50 
    51     "os.clock","os.date","os.difftime","os.execute","os.exit","os.getenv","os.remove","os.rename","os.setlocale",
    52     "os.time","os.tmpname",
    53 
    54     "package.cpath","package.loaded","package.loaders","package.loadlib","package.path","package.preload",
    55     "package.seeall",
    56 
    57     "string.byte","string.char","string.dump","string.find","string.format","string.gmatch","string.gsub",
    58     "string.len","string.lower","string.match","string.rep","string.reverse","string.sub","string.upper",
    59 
    60     "table.concat","table.insert","table.maxn","table.remove","table.sort"
    61   ]);
    62   var keywords = wordRE(["and","break","elseif","false","nil","not","or","return",
    63                          "true","function", "end", "if", "then", "else", "do",
    64                          "while", "repeat", "until", "for", "in", "local" ]);
    65 
    66   var indentTokens = wordRE(["function", "if","repeat","do", "\\(", "{"]);
    67   var dedentTokens = wordRE(["end", "until", "\\)", "}"]);
    68   var dedentPartial = prefixRE(["end", "until", "\\)", "}", "else", "elseif"]);
    69 
    70   function readBracket(stream) {
    71     var level = 0;
    72     while (stream.eat("=")) ++level;
    73     stream.eat("[");
    74     return level;
    75   }
    76 
    77   function normal(stream, state) {
    78     var ch = stream.next();
    79     if (ch == "-" && stream.eat("-")) {
    80       if (stream.eat("[") && stream.eat("["))
    81         return (state.cur = bracketed(readBracket(stream), "comment"))(stream, state);
    82       stream.skipToEnd();
    83       return "comment";
    84     }
    85     if (ch == "\"" || ch == "'")
    86       return (state.cur = string(ch))(stream, state);
    87     if (ch == "[" && /[\[=]/.test(stream.peek()))
    88       return (state.cur = bracketed(readBracket(stream), "string"))(stream, state);
    89     if (/\d/.test(ch)) {
    90       stream.eatWhile(/[\w.%]/);
    91       return "number";
    92     }
    93     if (/[\w_]/.test(ch)) {
    94       stream.eatWhile(/[\w\\\-_.]/);
    95       return "variable";
    96     }
    97     return null;
    98   }
    99 
   100   function bracketed(level, style) {
   101     return function(stream, state) {
   102       var curlev = null, ch;
   103       while ((ch = stream.next()) != null) {
   104         if (curlev == null) {if (ch == "]") curlev = 0;}
   105         else if (ch == "=") ++curlev;
   106         else if (ch == "]" && curlev == level) { state.cur = normal; break; }
   107         else curlev = null;
   108       }
   109       return style;
   110     };
   111   }
   112 
   113   function string(quote) {
   114     return function(stream, state) {
   115       var escaped = false, ch;
   116       while ((ch = stream.next()) != null) {
   117         if (ch == quote && !escaped) break;
   118         escaped = !escaped && ch == "\\";
   119       }
   120       if (!escaped) state.cur = normal;
   121       return "string";
   122     };
   123   }
   124 
   125   return {
   126     startState: function(basecol) {
   127       return {basecol: basecol || 0, indentDepth: 0, cur: normal};
   128     },
   129 
   130     token: function(stream, state) {
   131       if (stream.eatSpace()) return null;
   132       var style = state.cur(stream, state);
   133       var word = stream.current();
   134       if (style == "variable") {
   135         if (keywords.test(word)) style = "keyword";
   136         else if (builtins.test(word)) style = "builtin";
   137         else if (specials.test(word)) style = "variable-2";
   138       }
   139       if ((style != "comment") && (style != "string")){
   140         if (indentTokens.test(word)) ++state.indentDepth;
   141         else if (dedentTokens.test(word)) --state.indentDepth;
   142       }
   143       return style;
   144     },
   145 
   146     indent: function(state, textAfter) {
   147       var closing = dedentPartial.test(textAfter);
   148       return state.basecol + indentUnit * (state.indentDepth - (closing ? 1 : 0));
   149     },
   150 
   151     lineComment: "--",
   152     blockCommentStart: "--[[",
   153     blockCommentEnd: "]]"
   154   };
   155 });
   156 
   157 CodeMirror.defineMIME("text/x-lua", "lua");
   158 
   159 });



Download modules/editor/codemirror/mode/lua/lua.js


History
Sun, 17 Dec 2017 01:14:09 +0100	Jan Dankert	Integration eines weiteren Code-Editors: Codemirror. Demnächst müssen wir hier mal aufräumen und andere Editoren rauswerfen.