/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
** All rights reserved. | |
** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** This file is part of the Qt Assistant of the Qt Toolkit. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
** 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. | |
** | |
** GNU General Public License Usage | |
** Alternatively, this file may be used under the terms of the GNU General | |
** Public License version 3.0 as published by the Free Software Foundation | |
** and appearing in the file LICENSE.GPL included in the packaging of this | |
** file. Please review the following information to ensure the GNU General | |
** Public License version 3.0 requirements will be met: | |
** http://www.gnu.org/copyleft/gpl.html. | |
** | |
** Other Usage | |
** Alternatively, this file may be used in accordance with the terms and | |
** conditions contained in a signed written agreement between you and Nokia. | |
** | |
** | |
** | |
** | |
** | |
** $QT_END_LICENSE$ | |
** | |
****************************************************************************/ | |
#include <QtCore/QCoreApplication> | |
#include <QtCore/QRegExp> | |
#include <QtCore/QMutexLocker> | |
#include <QtGui/QTextDocument> | |
#include "qhelp_global.h" | |
QString QHelpGlobal::uniquifyConnectionName(const QString &name, void *pointer) | |
{ | |
static int counter = 0; | |
static QMutex mutex; | |
QMutexLocker locker(&mutex); | |
if (++counter > 1000) | |
counter = 0; | |
return QString::fromLatin1("%1-%2-%3"). | |
arg(name).arg(quintptr(pointer)).arg(counter); | |
} | |
QString QHelpGlobal::documentTitle(const QString &content) | |
{ | |
QString title = QCoreApplication::translate("QHelp", "Untitled"); | |
if (!content.isEmpty()) { | |
int start = content.indexOf(QLatin1String("<title>"), 0, Qt::CaseInsensitive) + 7; | |
int end = content.indexOf(QLatin1String("</title>"), 0, Qt::CaseInsensitive); | |
if ((end - start) > 0) { | |
title = content.mid(start, end - start); | |
if (Qt::mightBeRichText(title) || title.contains(QLatin1Char('&'))) { | |
QTextDocument doc; | |
doc.setHtml(title); | |
title = doc.toPlainText(); | |
} | |
} | |
} | |
return title; | |
} | |
QString QHelpGlobal::codecFromData(const QByteArray &data) | |
{ | |
QString codec = codecFromXmlData(data); | |
if (codec.isEmpty()) | |
codec = codecFromHtmlData(data); | |
return codec.isEmpty() ? QLatin1String("utf-8") : codec; | |
} | |
QString QHelpGlobal::codecFromHtmlData(const QByteArray &data) | |
{ | |
QString head = QString::fromUtf8(data.constData(), qMin(1000, data.size())); | |
int start = head.indexOf(QLatin1String("<meta"), 0, Qt::CaseInsensitive); | |
if (start > 0) { | |
QRegExp r(QLatin1String("charset=([^\"\\s]+)")); | |
while (start != -1) { | |
const int end = head.indexOf(QLatin1Char('>'), start) + 1; | |
if (end <= start) | |
break; | |
const QString &meta = head.mid(start, end - start).toLower(); | |
if (r.indexIn(meta) != -1) | |
return r.cap(1); | |
start = head.indexOf(QLatin1String("<meta"), end, | |
Qt::CaseInsensitive); | |
} | |
} | |
return QString(); | |
} | |
QString QHelpGlobal::codecFromXmlData(const QByteArray &data) | |
{ | |
QString head = QString::fromUtf8(data.constData(), qMin(1000, data.size())); | |
const QRegExp encodingExp(QLatin1String("^\\s*<\\?xml version=" | |
"\"\\d\\.\\d\" encoding=\"([^\"]+)\"\\?>.*")); | |
return encodingExp.exactMatch(head) ? encodingExp.cap(1) : QString(); | |
} |