diff -r 000000000000 -r 876b1a06bc25 src/versit/versitutils.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/versit/versitutils.cpp Wed Aug 25 15:49:42 2010 +0300 @@ -0,0 +1,108 @@ +/**************************************************************************** +** +** 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 Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 "versitutils_p.h" +#include "qmobilityglobal.h" + +#include +#include +#include + +QTM_USE_NAMESPACE + +QTextCodec* VersitUtils::m_previousCodec = 0; +QList* VersitUtils::m_newlineList = 0; +QByteArray VersitUtils::m_encodingMap[256]; + +/*! + * Encode \a ch with \a codec, without adding an byte-order mark + */ +QByteArray VersitUtils::encode(char ch, QTextCodec* codec) +{ + if (codec != m_previousCodec) { + changeCodec(codec); + } + return m_encodingMap[(int)ch]; +} + +/*! + * Encode \a ba with \a codec, without adding an byte-order mark. \a ba is interpreted as ASCII + */ +QByteArray VersitUtils::encode(const QByteArray& ba, QTextCodec* codec) +{ + QTextCodec::ConverterState state(QTextCodec::IgnoreHeader); + return codec->fromUnicode(QString::fromAscii(ba.data()).data(), ba.length(), &state); +} + +/*! + * Returns the list of DOS, UNIX and Mac newline characters for \a codec. + */ +QList* VersitUtils::newlineList(QTextCodec* codec) +{ + if (m_newlineList != 0 && codec == m_previousCodec) { + return m_newlineList; + } + changeCodec(codec); + return m_newlineList; +} + +/*! + * Update the cached tables of pregenerated encoded text with \a codec. + */ +void VersitUtils::changeCodec(QTextCodec* codec) { + // Build m_encodingMap + QChar qch; + QTextCodec::ConverterState state(QTextCodec::IgnoreHeader); + for (int c = 0; c < 256; c++) { + qch = QLatin1Char(c); + m_encodingMap[c] = codec->fromUnicode(&qch, 1, &state); + } + + // Build m_newlineList + if (m_newlineList != 0) + delete m_newlineList; + m_newlineList = new QList; + m_newlineList->append(QByteArrayMatcher(encode("\r\n", codec))); + m_newlineList->append(QByteArrayMatcher(encode("\n", codec))); + m_newlineList->append(QByteArrayMatcher(encode("\r", codec))); + + m_previousCodec = codec; +}