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 /** 32 * @constructor 33 */ 34 WebInspector.DOMSyntaxHighlighter = function(mimeType, stripExtraWhitespace) 35 { 36 this._mimeType = mimeType; 37 this._stripExtraWhitespace = stripExtraWhitespace; 38 } 39 40 WebInspector.DOMSyntaxHighlighter.prototype = { 41 /** 42 * @param {string} content 43 * @param {string} className 44 * @return {!Element} 45 */ 46 createSpan: function(content, className) 47 { 48 var span = document.createElement("span"); 49 span.className = "cm-" + className; 50 if (this._stripExtraWhitespace && className !== "whitespace") 51 content = content.replace(/^[\n\r]*/, "").replace(/\s*$/, ""); 52 span.appendChild(document.createTextNode(content)); 53 return span; 54 }, 55 56 syntaxHighlightNode: function(node) 57 { 58 var lines = node.textContent.split("\n"); 59 node.removeChildren(); 60 61 /** 62 * @param {string} token 63 * @param {?string} tokenType 64 * @param {number} column 65 * @param {number} newColumn 66 * @this {WebInspector.DOMSyntaxHighlighter} 67 */ 68 function processToken(token, tokenType, column, newColumn) 69 { 70 if (!tokenType) 71 return; 72 73 if (column > plainTextStart) { 74 var plainText = line.substring(plainTextStart, column); 75 node.appendChild(document.createTextNode(plainText)); 76 } 77 node.appendChild(this.createSpan(token, tokenType)); 78 plainTextStart = newColumn; 79 } 80 81 var tokenize = WebInspector.moduleManager.instance(WebInspector.TokenizerFactory).createTokenizer(this._mimeType); 82 for (var i = lines[0].length ? 0 : 1; i < lines.length; ++i) { 83 var line = lines[i]; 84 var plainTextStart = 0; 85 tokenize(line, processToken.bind(this)); 86 if (plainTextStart < line.length) { 87 var plainText = line.substring(plainTextStart, line.length); 88 node.appendChild(document.createTextNode(plainText)); 89 } 90 if (i < lines.length - 1) 91 node.appendChild(document.createElement("br")); 92 } 93 } 94 } 95
