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/****************************************************************************
**
** Copyright (C) 2010 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);
}
}
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