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runmode-standalone.js (5343B)


      1 // CodeMirror, copyright (c) by Marijn Haverbeke and others
      2 // Distributed under an MIT license: http://codemirror.net/LICENSE
      3 
      4 window.CodeMirror = {};
      5 
      6 (function() {
      7 "use strict";
      8 
      9 function splitLines(string){ return string.split(/\r?\n|\r/); };
     10 
     11 function StringStream(string) {
     12   this.pos = this.start = 0;
     13   this.string = string;
     14   this.lineStart = 0;
     15 }
     16 StringStream.prototype = {
     17   eol: function() {return this.pos >= this.string.length;},
     18   sol: function() {return this.pos == 0;},
     19   peek: function() {return this.string.charAt(this.pos) || null;},
     20   next: function() {
     21     if (this.pos < this.string.length)
     22       return this.string.charAt(this.pos++);
     23   },
     24   eat: function(match) {
     25     var ch = this.string.charAt(this.pos);
     26     if (typeof match == "string") var ok = ch == match;
     27     else var ok = ch && (match.test ? match.test(ch) : match(ch));
     28     if (ok) {++this.pos; return ch;}
     29   },
     30   eatWhile: function(match) {
     31     var start = this.pos;
     32     while (this.eat(match)){}
     33     return this.pos > start;
     34   },
     35   eatSpace: function() {
     36     var start = this.pos;
     37     while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
     38     return this.pos > start;
     39   },
     40   skipToEnd: function() {this.pos = this.string.length;},
     41   skipTo: function(ch) {
     42     var found = this.string.indexOf(ch, this.pos);
     43     if (found > -1) {this.pos = found; return true;}
     44   },
     45   backUp: function(n) {this.pos -= n;},
     46   column: function() {return this.start - this.lineStart;},
     47   indentation: function() {return 0;},
     48   match: function(pattern, consume, caseInsensitive) {
     49     if (typeof pattern == "string") {
     50       var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
     51       var substr = this.string.substr(this.pos, pattern.length);
     52       if (cased(substr) == cased(pattern)) {
     53         if (consume !== false) this.pos += pattern.length;
     54         return true;
     55       }
     56     } else {
     57       var match = this.string.slice(this.pos).match(pattern);
     58       if (match && match.index > 0) return null;
     59       if (match && consume !== false) this.pos += match[0].length;
     60       return match;
     61     }
     62   },
     63   current: function(){return this.string.slice(this.start, this.pos);},
     64   hideFirstChars: function(n, inner) {
     65     this.lineStart += n;
     66     try { return inner(); }
     67     finally { this.lineStart -= n; }
     68   },
     69   lookAhead: function() { return null }
     70 };
     71 CodeMirror.StringStream = StringStream;
     72 
     73 CodeMirror.startState = function (mode, a1, a2) {
     74   return mode.startState ? mode.startState(a1, a2) : true;
     75 };
     76 
     77 var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
     78 CodeMirror.defineMode = function (name, mode) {
     79   if (arguments.length > 2)
     80     mode.dependencies = Array.prototype.slice.call(arguments, 2);
     81   modes[name] = mode;
     82 };
     83 CodeMirror.defineMIME = function (mime, spec) { mimeModes[mime] = spec; };
     84 CodeMirror.resolveMode = function(spec) {
     85   if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
     86     spec = mimeModes[spec];
     87   } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
     88     spec = mimeModes[spec.name];
     89   }
     90   if (typeof spec == "string") return {name: spec};
     91   else return spec || {name: "null"};
     92 };
     93 CodeMirror.getMode = function (options, spec) {
     94   spec = CodeMirror.resolveMode(spec);
     95   var mfactory = modes[spec.name];
     96   if (!mfactory) throw new Error("Unknown mode: " + spec);
     97   return mfactory(options, spec);
     98 };
     99 CodeMirror.registerHelper = CodeMirror.registerGlobalHelper = Math.min;
    100 CodeMirror.defineMode("null", function() {
    101   return {token: function(stream) {stream.skipToEnd();}};
    102 });
    103 CodeMirror.defineMIME("text/plain", "null");
    104 
    105 CodeMirror.runMode = function (string, modespec, callback, options) {
    106   var mode = CodeMirror.getMode({ indentUnit: 2 }, modespec);
    107 
    108   if (callback.nodeType == 1) {
    109     var tabSize = (options && options.tabSize) || 4;
    110     var node = callback, col = 0;
    111     node.innerHTML = "";
    112     callback = function (text, style) {
    113       if (text == "\n") {
    114         node.appendChild(document.createElement("br"));
    115         col = 0;
    116         return;
    117       }
    118       var content = "";
    119       // replace tabs
    120       for (var pos = 0; ;) {
    121         var idx = text.indexOf("\t", pos);
    122         if (idx == -1) {
    123           content += text.slice(pos);
    124           col += text.length - pos;
    125           break;
    126         } else {
    127           col += idx - pos;
    128           content += text.slice(pos, idx);
    129           var size = tabSize - col % tabSize;
    130           col += size;
    131           for (var i = 0; i < size; ++i) content += " ";
    132           pos = idx + 1;
    133         }
    134       }
    135 
    136       if (style) {
    137         var sp = node.appendChild(document.createElement("span"));
    138         sp.className = "cm-" + style.replace(/ +/g, " cm-");
    139         sp.appendChild(document.createTextNode(content));
    140       } else {
    141         node.appendChild(document.createTextNode(content));
    142       }
    143     };
    144   }
    145 
    146   var lines = splitLines(string), state = (options && options.state) || CodeMirror.startState(mode);
    147   for (var i = 0, e = lines.length; i < e; ++i) {
    148     if (i) callback("\n");
    149     var stream = new CodeMirror.StringStream(lines[i]);
    150     if (!stream.string && mode.blankLine) mode.blankLine(state);
    151     while (!stream.eol()) {
    152       var style = mode.token(stream, state);
    153       callback(stream.current(), style, i, stream.start, state);
    154       stream.start = stream.pos;
    155     }
    156   }
    157 };
    158 })();