| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** |
| * @unrestricted |
| */ |
| export default class SyntaxHighlighter { |
| /** |
| * @param {string} mimeType |
| * @param {boolean} stripExtraWhitespace |
| */ |
| constructor(mimeType, stripExtraWhitespace) { |
| this._mimeType = mimeType; |
| this._stripExtraWhitespace = stripExtraWhitespace; |
| } |
| |
| /** |
| * @param {string} content |
| * @param {string} className |
| * @return {!Element} |
| */ |
| createSpan(content, className) { |
| const span = createElement('span'); |
| span.className = className.replace(/\S+/g, 'cm-$&'); |
| if (this._stripExtraWhitespace && className !== 'whitespace') { |
| content = content.replace(/^[\n\r]*/, '').replace(/\s*$/, ''); |
| } |
| span.createTextChild(content); |
| return span; |
| } |
| |
| /** |
| * @param {!Element} node |
| * @return {!Promise.<undefined>} |
| */ |
| syntaxHighlightNode(node) { |
| const lines = node.textContent.split('\n'); |
| let plainTextStart; |
| let line; |
| |
| return self.runtime.extension(TextUtils.TokenizerFactory).instance().then(processTokens.bind(this)); |
| |
| /** |
| * @param {!TextUtils.TokenizerFactory} tokenizerFactory |
| * @this {SyntaxHighlighter} |
| */ |
| function processTokens(tokenizerFactory) { |
| node.removeChildren(); |
| const tokenize = tokenizerFactory.createTokenizer(this._mimeType); |
| for (let i = 0; i < lines.length; ++i) { |
| line = lines[i]; |
| plainTextStart = 0; |
| tokenize(line, processToken.bind(this)); |
| if (plainTextStart < line.length) { |
| const plainText = line.substring(plainTextStart, line.length); |
| node.createTextChild(plainText); |
| } |
| if (i < lines.length - 1) { |
| node.createTextChild('\n'); |
| } |
| } |
| } |
| |
| /** |
| * @param {string} token |
| * @param {?string} tokenType |
| * @param {number} column |
| * @param {number} newColumn |
| * @this {SyntaxHighlighter} |
| */ |
| function processToken(token, tokenType, column, newColumn) { |
| if (!tokenType) { |
| return; |
| } |
| |
| if (column > plainTextStart) { |
| const plainText = line.substring(plainTextStart, column); |
| node.createTextChild(plainText); |
| } |
| node.appendChild(this.createSpan(token, tokenType)); |
| plainTextStart = newColumn; |
| } |
| } |
| } |
| |
| /* Legacy exported object*/ |
| self.UI = self.UI || {}; |
| |
| /* Legacy exported object*/ |
| UI = UI || {}; |
| |
| /** @constructor */ |
| UI.SyntaxHighlighter = SyntaxHighlighter; |