1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the Qt Linguist of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include "lupdate.h"

    43 

    44 #include <translator.h>

    45 

    46 #include <QtCore/QDebug>

    47 #include <QtCore/QFile>

    48 #include <QtCore/QString>

    49 

    50 #include <QtXml/QXmlAttributes>

    51 #include <QtXml/QXmlDefaultHandler>

    52 #include <QtXml/QXmlLocator>

    53 #include <QtXml/QXmlParseException>

    54 

    55 

    56 QT_BEGIN_NAMESPACE

    57 

    58 class UiReader : public QXmlDefaultHandler

    59 {

    60 public:

    61     UiReader(Translator &translator, ConversionData &cd)

    62       : m_translator(translator), m_cd(cd), m_lineNumber(-1), m_isTrString(false),

    63         m_needUtf8(translator.codecName() != "UTF-8")

    64     {}

    65 

    66     bool startElement(const QString &namespaceURI, const QString &localName,

    67         const QString &qName, const QXmlAttributes &atts);

    68     bool endElement(const QString &namespaceURI, const QString &localName,

    69         const QString &qName);

    70     bool characters(const QString &ch);

    71     bool fatalError(const QXmlParseException &exception);

    72 

    73     void setDocumentLocator(QXmlLocator *locator) { m_locator = locator; }

    74 

    75 private:

    76     void flush();

    77 

    78     Translator &m_translator;

    79     ConversionData &m_cd;

    80     QString m_context;

    81     QString m_source;

    82     QString m_comment;

    83     QString m_extracomment;

    84     QXmlLocator *m_locator;

    85 

    86     QString m_accum;

    87     int m_lineNumber;

    88     bool m_isTrString;

    89     bool m_needUtf8;

    90 };

    91 

    92 bool UiReader::startElement(const QString &namespaceURI,

    93     const QString &localName, const QString &qName, const QXmlAttributes &atts)

    94 {

    95     Q_UNUSED(namespaceURI);

    96     Q_UNUSED(localName);

    97 

    98     if (qName == QLatin1String("item")) { // UI3 menu entries

    99         flush();

   100         if (!atts.value(QLatin1String("text")).isEmpty()) {

   101             m_source = atts.value(QLatin1String("text"));

   102             m_isTrString = true;

   103             if (!m_cd.m_noUiLines)

   104                 m_lineNumber = m_locator->lineNumber();

   105         }

   106     } else if (qName == QLatin1String("string")) {

   107         flush();

   108         if (atts.value(QLatin1String("notr")).isEmpty() ||

   109             atts.value(QLatin1String("notr")) != QLatin1String("true")) {

   110             m_isTrString = true;

   111             m_comment = atts.value(QLatin1String("comment"));

   112             m_extracomment = atts.value(QLatin1String("extracomment"));

   113             if (!m_cd.m_noUiLines)

   114                 m_lineNumber = m_locator->lineNumber();

   115         } else {

   116             m_isTrString = false;

   117         }

   118     }

   119     m_accum.clear();

   120     return true;

   121 }

   122 

   123 bool UiReader::endElement(const QString &namespaceURI,

   124     const QString &localName, const QString &qName)

   125 {

   126     Q_UNUSED(namespaceURI);

   127     Q_UNUSED(localName);

   128 

   129     m_accum.replace(QLatin1String("\r\n"), QLatin1String("\n"));

   130 

   131     if (qName == QLatin1String("class")) { // UI "header"

   132         if (m_context.isEmpty())

   133             m_context = m_accum;

   134     } else if (qName == QLatin1String("string") && m_isTrString) {

   135         m_source = m_accum;

   136     } else if (qName == QLatin1String("comment")) { // FIXME: what's that?

   137         m_comment = m_accum;

   138         flush();

   139     } else if (qName == QLatin1String("function")) { // UI3 embedded code

   140         fetchtrInlinedCpp(m_accum, m_translator, m_context);

   141     } else {

   142         flush();

   143     }

   144     return true;

   145 }

   146 

   147 bool UiReader::characters(const QString &ch)

   148 {

   149     m_accum += ch;

   150     return true;

   151 }

   152 

   153 bool UiReader::fatalError(const QXmlParseException &exception)

   154 {

   155     QString msg;

   156     msg.sprintf("XML error: Parse error at line %d, column %d (%s).",

   157                  exception.lineNumber(), exception.columnNumber(),

   158                  exception.message().toLatin1().data());

   159     m_cd.appendError(msg); 

   160     return false;

   161 }

   162 

   163 void UiReader::flush()

   164 {

   165     if (!m_context.isEmpty() && !m_source.isEmpty()) {

   166         TranslatorMessage msg(m_context, m_source,

   167            m_comment, QString(), m_cd.m_sourceFileName,

   168            m_lineNumber, QStringList());

   169         msg.setExtraComment(m_extracomment);

   170         if (m_needUtf8 && msg.needs8Bit())

   171             msg.setUtf8(true);

   172         m_translator.extend(msg);

   173     }

   174     m_source.clear();

   175     m_comment.clear();

   176     m_extracomment.clear();

   177 }

   178 

   179 bool loadUI(Translator &translator, const QString &filename, ConversionData &cd)

   180 {

   181     cd.m_sourceFileName = filename;

   182     QFile file(filename);

   183     if (!file.open(QIODevice::ReadOnly)) {

   184         cd.appendError(QString::fromLatin1("Cannot open %1: %2")

   185             .arg(filename, file.errorString()));

   186         return false;

   187     }

   188     QXmlInputSource in(&file);

   189     QXmlSimpleReader reader;

   190     reader.setFeature(QLatin1String("http://xml.org/sax/features/namespaces"), false);

   191     reader.setFeature(QLatin1String("http://xml.org/sax/features/namespace-prefixes"), true);

   192     reader.setFeature(QLatin1String(

   193             "http://trolltech.com/xml/features/report-whitespace-only-CharData"), false);

   194     UiReader handler(translator, cd);

   195     reader.setContentHandler(&handler);

   196     reader.setErrorHandler(&handler);

   197     bool result = reader.parse(in);

   198     if (!result)

   199         cd.appendError(QLatin1String("Parse error in UI file"));

   200     reader.setContentHandler(0);

   201     reader.setErrorHandler(0);

   202     return result;

   203 }

   204 

   205 QT_END_NAMESPACE