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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the Qt Mobility Components. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "versitutils_p.h" |
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43 #include "qmobilityglobal.h" |
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44 |
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45 #include <QMap> |
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46 #include <QTextCodec> |
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47 #include <QScopedPointer> |
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48 |
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49 QTM_USE_NAMESPACE |
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50 |
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51 QTextCodec* VersitUtils::m_previousCodec = 0; |
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52 QList<QByteArrayMatcher>* VersitUtils::m_newlineList = 0; |
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53 QByteArray VersitUtils::m_encodingMap[256]; |
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54 |
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55 /*! |
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56 * Encode \a ch with \a codec, without adding an byte-order mark |
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57 */ |
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58 QByteArray VersitUtils::encode(char ch, QTextCodec* codec) |
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59 { |
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60 if (codec != m_previousCodec) { |
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61 changeCodec(codec); |
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62 } |
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63 return m_encodingMap[(int)ch]; |
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64 } |
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65 |
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66 /*! |
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67 * Encode \a ba with \a codec, without adding an byte-order mark. \a ba is interpreted as ASCII |
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68 */ |
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69 QByteArray VersitUtils::encode(const QByteArray& ba, QTextCodec* codec) |
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70 { |
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71 QTextCodec::ConverterState state(QTextCodec::IgnoreHeader); |
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72 return codec->fromUnicode(QString::fromAscii(ba.data()).data(), ba.length(), &state); |
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73 } |
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74 |
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75 /*! |
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76 * Returns the list of DOS, UNIX and Mac newline characters for \a codec. |
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77 */ |
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78 QList<QByteArrayMatcher>* VersitUtils::newlineList(QTextCodec* codec) |
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79 { |
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80 if (m_newlineList != 0 && codec == m_previousCodec) { |
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81 return m_newlineList; |
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82 } |
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83 changeCodec(codec); |
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84 return m_newlineList; |
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85 } |
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86 |
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87 /*! |
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88 * Update the cached tables of pregenerated encoded text with \a codec. |
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89 */ |
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90 void VersitUtils::changeCodec(QTextCodec* codec) { |
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91 // Build m_encodingMap |
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92 QChar qch; |
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93 QTextCodec::ConverterState state(QTextCodec::IgnoreHeader); |
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94 for (int c = 0; c < 256; c++) { |
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95 qch = QLatin1Char(c); |
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96 m_encodingMap[c] = codec->fromUnicode(&qch, 1, &state); |
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97 } |
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98 |
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99 // Build m_newlineList |
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100 if (m_newlineList != 0) |
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101 delete m_newlineList; |
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102 m_newlineList = new QList<QByteArrayMatcher>; |
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103 m_newlineList->append(QByteArrayMatcher(encode("\r\n", codec))); |
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104 m_newlineList->append(QByteArrayMatcher(encode("\n", codec))); |
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105 m_newlineList->append(QByteArrayMatcher(encode("\r", codec))); |
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106 |
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107 m_previousCodec = codec; |
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108 } |