1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/highlighter.cpp Wed Mar 21 11:51:38 2007 +0000
1.3 @@ -0,0 +1,150 @@
1.4 +/****************************************************************************
1.5 +**
1.6 +** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
1.7 +**
1.8 +** This file is part of the example classes of the Qt Toolkit.
1.9 +**
1.10 +** This file may be used under the terms of the GNU General Public
1.11 +** License version 2.0 as published by the Free Software Foundation
1.12 +** and appearing in the file LICENSE.GPL included in the packaging of
1.13 +** this file. Please review the following information to ensure GNU
1.14 +** General Public Licensing requirements will be met:
1.15 +** http://www.trolltech.com/products/qt/opensource.html
1.16 +**
1.17 +** If you are unsure which license is appropriate for your use, please
1.18 +** review the following information:
1.19 +** http://www.trolltech.com/products/qt/licensing.html or contact the
1.20 +** sales department at sales@trolltech.com.
1.21 +**
1.22 +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
1.23 +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
1.24 +**
1.25 +****************************************************************************/
1.26 +
1.27 +// highlighting rules have been adapted by Uwe Drechsel to match vym syntax
1.28 +
1.29 +
1.30 +#include <QtGui>
1.31 +
1.32 +#include "highlighter.h"
1.33 +
1.34 +Highlighter::Highlighter(QTextDocument *parent)
1.35 + : QSyntaxHighlighter(parent)
1.36 +{
1.37 + HighlightingRule rule;
1.38 +
1.39 + keywordFormat.setForeground(Qt::darkBlue);
1.40 + keywordFormat.setFontWeight(QFont::Bold);
1.41 + QStringList keywordPatterns;
1.42 + keywordPatterns << "\\baddBranch\\b" << "\\baddBranchBefore\\b"
1.43 + << "\\baddMapInsert\\b" << "\\baddMapReplace\\b"
1.44 + << "\\bcolorBranch\\b" << "\\bcolorSubtree\\b"
1.45 + << "\\bcut\\b" << "\\bdelete\\b"
1.46 + << "\\bdeletepKeepChilds\\b" << "\\bdeletepChilds\\b"
1.47 + << "\\blinkTo\\b" << "\\bloadImage\\b"
1.48 + << "\\bmoveBranchUp\\b" << "\\bmoveBranchDown\\b"
1.49 + << "\\bmove\\b" << "\\bmoveRel\\b"
1.50 + << "\\bpaste\\b"
1.51 + << "\\bsaveImage\\b"
1.52 + << "\\bscroll\\b"
1.53 + << "\\bselect\\b" << "\\bselectLastBranch\\b" << "\\bselectLastImage\\b"
1.54 + << "\\bsetMapAuthor\\b"
1.55 + << "\\bsetMapComment\\b"
1.56 + << "\\bsetMapBackgroundColor\\b"
1.57 + << "\\bsetMapDefLinkColor\\b"
1.58 + << "\\bsetMapDefLinkStyle\\b"
1.59 + << "\\bsetHeading\\b"
1.60 + << "\\bsetHideExport\\b"
1.61 + << "\\bsetIncludeImagesHorizontally\\b"
1.62 + << "\\bsetIncludeImagesVertically\\b"
1.63 + << "\\bsetURL\\b"
1.64 + << "\\bsetVymLink\\b"
1.65 + << "\\bsetFlag\\b"
1.66 + << "\\bunscroll\\b"
1.67 + << "\\bunsetFlag\\b"
1.68 + ;
1.69 + foreach (QString pattern, keywordPatterns) {
1.70 + rule.pattern = QRegExp(pattern);
1.71 + rule.format = keywordFormat;
1.72 + highlightingRules.append(rule);
1.73 + }
1.74 +
1.75 + // QT keywords
1.76 + /*
1.77 + classFormat.setFontWeight(QFont::Bold);
1.78 + classFormat.setForeground(Qt::darkMagenta);
1.79 + rule.pattern = QRegExp("\\bQ[A-Za-z]+\\b");
1.80 + rule.format = classFormat;
1.81 + highlightingRules.append(rule);
1.82 + */
1.83 +
1.84 + // Single line comments
1.85 + singleLineCommentFormat.setForeground(Qt::red);
1.86 + rule.pattern = QRegExp("#[^\n]*");
1.87 + rule.format = singleLineCommentFormat;
1.88 + highlightingRules.append(rule);
1.89 +
1.90 + // Single line comments
1.91 + multiLineCommentFormat.setForeground(Qt::red);
1.92 + commentStartExpression = QRegExp("/\\*");
1.93 + commentEndExpression = QRegExp("\\*/");
1.94 +
1.95 + // Quotations
1.96 + quotationFormat.setForeground(Qt::darkGreen);
1.97 + rule.pattern = QRegExp("\".*\"");
1.98 + rule.format = quotationFormat;
1.99 + highlightingRules.append(rule);
1.100 +
1.101 + QStringList valuePatterns;
1.102 + valuePatterns << "\\btrue\\b" << "\\bfalse\\b";
1.103 + foreach (QString pattern, valuePatterns) {
1.104 + rule.pattern = QRegExp(pattern);
1.105 + rule.format = quotationFormat;
1.106 + highlightingRules.append(rule);
1.107 + }
1.108 +
1.109 +
1.110 +
1.111 + // Funtions
1.112 + /*
1.113 + functionFormat.setFontItalic(true);
1.114 + functionFormat.setForeground(Qt::blue);
1.115 + rule.pattern = QRegExp("\\b[A-Za-z0-9_]+(?=\\()");
1.116 + rule.format = functionFormat;
1.117 + highlightingRules.append(rule);
1.118 + */
1.119 +
1.120 +}
1.121 +
1.122 +void Highlighter::highlightBlock(const QString &text)
1.123 +{
1.124 + foreach (HighlightingRule rule, highlightingRules) {
1.125 + QRegExp expression(rule.pattern);
1.126 + int index = text.indexOf(expression);
1.127 + while (index >= 0) {
1.128 + int length = expression.matchedLength();
1.129 + setFormat(index, length, rule.format);
1.130 + index = text.indexOf(expression, index + length);
1.131 + }
1.132 + }
1.133 + setCurrentBlockState(0);
1.134 +
1.135 + int startIndex = 0;
1.136 + if (previousBlockState() != 1)
1.137 + startIndex = text.indexOf(commentStartExpression);
1.138 +
1.139 + while (startIndex >= 0) {
1.140 + int endIndex = text.indexOf(commentEndExpression, startIndex);
1.141 + int commentLength;
1.142 + if (endIndex == -1) {
1.143 + setCurrentBlockState(1);
1.144 + commentLength = text.length() - startIndex;
1.145 + } else {
1.146 + commentLength = endIndex - startIndex
1.147 + + commentEndExpression.matchedLength();
1.148 + }
1.149 + setFormat(startIndex, commentLength, multiLineCommentFormat);
1.150 + startIndex = text.indexOf(commentStartExpression,
1.151 + startIndex + commentLength);
1.152 + }
1.153 +}