--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/xmlpatterns/shared/xmlsyntaxhighlighter.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,106 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "xmlsyntaxhighlighter.h"
+
+XmlSyntaxHighlighter::XmlSyntaxHighlighter(QTextDocument *parent)
+    : QSyntaxHighlighter(parent)
+{
+    HighlightingRule rule;
+
+    // tag format
+    tagFormat.setForeground(Qt::darkBlue);
+    tagFormat.setFontWeight(QFont::Bold);
+    rule.pattern = QRegExp("(<[a-zA-Z:]+\\b|<\\?[a-zA-Z:]+\\b|\\?>|>|/>|</[a-zA-Z:]+>)");
+    rule.format = tagFormat;
+    highlightingRules.append(rule);
+
+    // attribute format
+    attributeFormat.setForeground(Qt::darkGreen);
+    rule.pattern = QRegExp("[a-zA-Z:]+=");
+    rule.format = attributeFormat;
+    highlightingRules.append(rule);
+
+    // attribute content format
+    attributeContentFormat.setForeground(Qt::red);
+    rule.pattern = QRegExp("(\"[^\"]*\"|'[^']*')");
+    rule.format = attributeContentFormat;
+    highlightingRules.append(rule);
+
+    commentFormat.setForeground(Qt::lightGray);
+    commentFormat.setFontItalic(true);
+
+    commentStartExpression = QRegExp("<!--");
+    commentEndExpression = QRegExp("-->");
+}
+
+void XmlSyntaxHighlighter::highlightBlock(const QString &text)
+{
+     foreach (const HighlightingRule &rule, highlightingRules) {
+         QRegExp expression(rule.pattern);
+         int index = text.indexOf(expression);
+         while (index >= 0) {
+             int length = expression.matchedLength();
+             setFormat(index, length, rule.format);
+             index = text.indexOf(expression, index + length);
+         }
+     }
+     setCurrentBlockState(0);
+
+     int startIndex = 0;
+     if (previousBlockState() != 1)
+         startIndex = text.indexOf(commentStartExpression);
+
+     while (startIndex >= 0) {
+         int endIndex = text.indexOf(commentEndExpression, startIndex);
+         int commentLength;
+         if (endIndex == -1) {
+             setCurrentBlockState(1);
+             commentLength = text.length() - startIndex;
+         } else {
+             commentLength = endIndex - startIndex
+                             + commentEndExpression.matchedLength();
+         }
+         setFormat(startIndex, commentLength, commentFormat);
+         startIndex = text.indexOf(commentStartExpression,
+                                                 startIndex + commentLength);
+     }
+}