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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 WebInspector.DOMSyntaxHighlighter = function(mimeType)
     32 {
     33     this._tokenizer = WebInspector.SourceTokenizer.Registry.getInstance().getTokenizer(mimeType);
     34 }
     35 
     36 WebInspector.DOMSyntaxHighlighter.prototype = {
     37     createSpan: function(content, className)
     38     {
     39         var span = document.createElement("span");
     40         span.className = "webkit-" + className;
     41         span.appendChild(document.createTextNode(content));
     42         return span;
     43     },
     44 
     45     syntaxHighlightNode: function(node)
     46     {
     47         this._tokenizer.condition = this._tokenizer.initialCondition;
     48         var lines = node.textContent.split("\n");
     49         node.removeChildren();
     50 
     51         for (var i = lines[0].length ? 0 : 1; i < lines.length; ++i) {
     52             var line = lines[i];
     53             var plainTextStart = 0;
     54             this._tokenizer.line = line;
     55             var column = 0;
     56             do {
     57                 var newColumn = this._tokenizer.nextToken(column);
     58                 var tokenType = this._tokenizer.tokenType;
     59                 if (tokenType) {
     60                     if (column > plainTextStart) {
     61                         var plainText = line.substring(plainTextStart, column);
     62                         node.appendChild(document.createTextNode(plainText));
     63                     }
     64                     var token = line.substring(column, newColumn);
     65                     node.appendChild(this.createSpan(token, tokenType));
     66                     plainTextStart = newColumn;
     67                 }
     68                 column = newColumn;
     69            } while (column < line.length)
     70 
     71            if (plainTextStart < line.length) {
     72                var plainText = line.substring(plainTextStart, line.length);
     73                node.appendChild(document.createTextNode(plainText));
     74            }
     75            if (i < lines.length - 1)
     76                node.appendChild(document.createElement("br"));
     77         }
     78     }
     79 }
     80