wcfsetup/install/files/js/3rdParty/codemirror/addon/runmode/runmode-standalone.js

   1 /* Just enough of CodeMirror to run runMode under node.js */
   2
   3 window.CodeMirror = {};
   4
   5 function splitLines(string){ return string.split(/\r?\n|\r/); };
   6
   7 function StringStream(string) {
   8   this.pos = this.start = 0;
   9   this.string = string;
  10 }
  11 StringStream.prototype = {
  12   eol: function() {return this.pos >= this.string.length;},
  13   sol: function() {return this.pos == 0;},
  14   peek: function() {return this.string.charAt(this.pos) || null;},
  15   next: function() {
  16     if (this.pos < this.string.length)
  17       return this.string.charAt(this.pos++);
  18   },
  19   eat: function(match) {
  20     var ch = this.string.charAt(this.pos);
  21     if (typeof match == "string") var ok = ch == match;
  22     else var ok = ch && (match.test ? match.test(ch) : match(ch));
  23     if (ok) {++this.pos; return ch;}
  24   },
  25   eatWhile: function(match) {
  26     var start = this.pos;
  27     while (this.eat(match)){}
  28     return this.pos > start;
  29   },
  30   eatSpace: function() {
  31     var start = this.pos;
  32     while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
  33     return this.pos > start;
  34   },
  35   skipToEnd: function() {this.pos = this.string.length;},
  36   skipTo: function(ch) {
  37     var found = this.string.indexOf(ch, this.pos);
  38     if (found > -1) {this.pos = found; return true;}
  39   },
  40   backUp: function(n) {this.pos -= n;},
  41   column: function() {return this.start;},
  42   indentation: function() {return 0;},
  43   match: function(pattern, consume, caseInsensitive) {
  44     if (typeof pattern == "string") {
  45       var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
  46       if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
  47         if (consume !== false) this.pos += pattern.length;
  48         return true;
  49       }
  50     } else {
  51       var match = this.string.slice(this.pos).match(pattern);
  52       if (match && consume !== false) this.pos += match[0].length;
  53       return match;
  54     }
  55   },
  56   current: function(){return this.string.slice(this.start, this.pos);}
  57 };
  58 CodeMirror.StringStream = StringStream;
  59
  60 CodeMirror.startState = function (mode, a1, a2) {
  61   return mode.startState ? mode.startState(a1, a2) : true;
  62 };
  63
  64 var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
  65 CodeMirror.defineMode = function (name, mode) { modes[name] = mode; };
  66 CodeMirror.defineMIME = function (mime, spec) { mimeModes[mime] = spec; };
  67 CodeMirror.getMode = function (options, spec) {
  68   if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
  69     spec = mimeModes[spec];
  70   if (typeof spec == "string")
  71     var mname = spec, config = {};
  72   else if (spec != null)
  73     var mname = spec.name, config = spec;
  74   var mfactory = modes[mname];
  75   if (!mfactory) throw new Error("Unknown mode: " + spec);
  76   return mfactory(options, config || {});
  77 };
  78
  79 CodeMirror.runMode = function (string, modespec, callback, options) {
  80   var mode = CodeMirror.getMode({ indentUnit: 2 }, modespec);
  81
  82   if (callback.nodeType == 1) {
  83     var tabSize = (options && options.tabSize) || 4;
  84     var node = callback, col = 0;
  85     node.innerHTML = "";
  86     callback = function (text, style) {
  87       if (text == "\n") {
  88         node.appendChild(document.createElement("br"));
  89         col = 0;
  90         return;
  91       }
  92       var content = "";
  93       // replace tabs
  94       for (var pos = 0; ;) {
  95         var idx = text.indexOf("\t", pos);
  96         if (idx == -1) {
  97           content += text.slice(pos);
  98           col += text.length - pos;
  99           break;
 100         } else {
 101           col += idx - pos;
 102           content += text.slice(pos, idx);
 103           var size = tabSize - col % tabSize;
 104           col += size;
 105           for (var i = 0; i < size; ++i) content += " ";
 106           pos = idx + 1;
 107         }
 108       }
 109
 110       if (style) {
 111         var sp = node.appendChild(document.createElement("span"));
 112         sp.className = "cm-" + style.replace(/ +/g, " cm-");
 113         sp.appendChild(document.createTextNode(content));
 114       } else {
 115         node.appendChild(document.createTextNode(content));
 116       }
 117     };
 118   }
 119
 120   var lines = splitLines(string), state = CodeMirror.startState(mode);
 121   for (var i = 0, e = lines.length; i < e; ++i) {
 122     if (i) callback("\n");
 123     var stream = new CodeMirror.StringStream(lines[i]);
 124     while (!stream.eol()) {
 125       var style = mode.token(stream, state);
 126       callback(stream.current(), style, i, stream.start);
 127       stream.start = stream.pos;
 128     }
 129   }
 130 };