wcfsetup/install/files/js/3rdParty/codemirror/addon/runmode/runmode.node.js

   1 /* Just enough of CodeMirror to run runMode under node.js */
   2
   3 function splitLines(string){ return string.split(/\r?\n|\r/); };
   4
   5 function StringStream(string) {
   6   this.pos = this.start = 0;
   7   this.string = string;
   8 }
   9 StringStream.prototype = {
  10   eol: function() {return this.pos >= this.string.length;},
  11   sol: function() {return this.pos == 0;},
  12   peek: function() {return this.string.charAt(this.pos) || null;},
  13   next: function() {
  14     if (this.pos < this.string.length)
  15       return this.string.charAt(this.pos++);
  16   },
  17   eat: function(match) {
  18     var ch = this.string.charAt(this.pos);
  19     if (typeof match == "string") var ok = ch == match;
  20     else var ok = ch && (match.test ? match.test(ch) : match(ch));
  21     if (ok) {++this.pos; return ch;}
  22   },
  23   eatWhile: function(match) {
  24     var start = this.pos;
  25     while (this.eat(match)){}
  26     return this.pos > start;
  27   },
  28   eatSpace: function() {
  29     var start = this.pos;
  30     while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
  31     return this.pos > start;
  32   },
  33   skipToEnd: function() {this.pos = this.string.length;},
  34   skipTo: function(ch) {
  35     var found = this.string.indexOf(ch, this.pos);
  36     if (found > -1) {this.pos = found; return true;}
  37   },
  38   backUp: function(n) {this.pos -= n;},
  39   column: function() {return this.start;},
  40   indentation: function() {return 0;},
  41   match: function(pattern, consume, caseInsensitive) {
  42     if (typeof pattern == "string") {
  43       var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
  44       if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
  45         if (consume !== false) this.pos += pattern.length;
  46         return true;
  47       }
  48     } else {
  49       var match = this.string.slice(this.pos).match(pattern);
  50       if (match && consume !== false) this.pos += match[0].length;
  51       return match;
  52     }
  53   },
  54   current: function(){return this.string.slice(this.start, this.pos);}
  55 };
  56 exports.StringStream = StringStream;
  57
  58 exports.startState = function(mode, a1, a2) {
  59   return mode.startState ? mode.startState(a1, a2) : true;
  60 };
  61
  62 var modes = exports.modes = {}, mimeModes = exports.mimeModes = {};
  63 exports.defineMode = function(name, mode) {
  64   if (arguments.length > 2) {
  65     mode.dependencies = [];
  66     for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
  67   }
  68   modes[name] = mode;
  69 };
  70 exports.defineMIME = function(mime, spec) { mimeModes[mime] = spec; };
  71
  72 exports.defineMode("null", function() {
  73   return {token: function(stream) {stream.skipToEnd();}};
  74 });
  75 exports.defineMIME("text/plain", "null");
  76
  77 exports.getMode = function(options, spec) {
  78   if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
  79     spec = mimeModes[spec];
  80   if (typeof spec == "string")
  81     var mname = spec, config = {};
  82   else if (spec != null)
  83     var mname = spec.name, config = spec;
  84   var mfactory = modes[mname];
  85   if (!mfactory) throw new Error("Unknown mode: " + spec);
  86   return mfactory(options, config || {});
  87 };
  88
  89 exports.runMode = function(string, modespec, callback) {
  90   var mode = exports.getMode({indentUnit: 2}, modespec);
  91   var lines = splitLines(string), state = exports.startState(mode);
  92   for (var i = 0, e = lines.length; i < e; ++i) {
  93     if (i) callback("\n");
  94     var stream = new exports.StringStream(lines[i]);
  95     while (!stream.eol()) {
  96       var style = mode.token(stream, state);
  97       callback(stream.current(), style, i, stream.start);
  98       stream.start = stream.pos;
  99     }
 100   }
 101 };