src/xmlpatterns/schema/qnamespacesupport.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2008 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 QtXmlPatterns module 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.
       
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    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
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    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
       
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    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.
       
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    29 ** Nokia at qt-info@nokia.com.
       
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    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 //
       
    43 //  W A R N I N G
       
    44 //  -------------
       
    45 //
       
    46 // This file is not part of the Qt API.  It exists purely as an
       
    47 // implementation detail.  This header file may change from version to
       
    48 // version without notice, or even be removed.
       
    49 //
       
    50 // We mean it.
       
    51 
       
    52 #include "qnamespacesupport_p.h"
       
    53 
       
    54 QT_BEGIN_NAMESPACE
       
    55 
       
    56 using namespace QPatternist;
       
    57 
       
    58 NamespaceSupport::NamespaceSupport()
       
    59 {
       
    60 }
       
    61 
       
    62 NamespaceSupport::NamespaceSupport(const NamePool::Ptr &namePool)
       
    63     : m_namePool(namePool)
       
    64 {
       
    65     // the XML namespace
       
    66     m_ns.insert(StandardPrefixes::xml, StandardNamespaces::xml);
       
    67 }
       
    68 
       
    69 void NamespaceSupport::setPrefix(const QXmlName::PrefixCode prefixCode, const QXmlName::NamespaceCode namespaceCode)
       
    70 {
       
    71     m_ns.insert(prefixCode, namespaceCode);
       
    72 }
       
    73 
       
    74 void NamespaceSupport::setPrefixes(const QXmlStreamNamespaceDeclarations &declarations)
       
    75 {
       
    76     for (int i = 0; i < declarations.count(); i++) {
       
    77         const QXmlStreamNamespaceDeclaration declaration = declarations.at(i);
       
    78 
       
    79         const QXmlName::PrefixCode prefixCode = m_namePool->allocatePrefix(declaration.prefix().toString());
       
    80         const QXmlName::NamespaceCode namespaceCode = m_namePool->allocateNamespace(declaration.namespaceUri().toString());
       
    81         m_ns.insert(prefixCode, namespaceCode);
       
    82     }
       
    83 }
       
    84 
       
    85 void NamespaceSupport::setTargetNamespace(const QXmlName::NamespaceCode namespaceCode)
       
    86 {
       
    87     m_ns.insert(0, namespaceCode);
       
    88 }
       
    89 
       
    90 QXmlName::PrefixCode NamespaceSupport::prefix(const QXmlName::NamespaceCode namespaceCode) const
       
    91 {
       
    92     NamespaceHash::const_iterator itc, it = m_ns.constBegin();
       
    93     while ((itc=it) != m_ns.constEnd()) {
       
    94         ++it;
       
    95         if (*itc == namespaceCode)
       
    96             return itc.key();
       
    97     }
       
    98     return 0;
       
    99 }
       
   100 
       
   101 QXmlName::NamespaceCode NamespaceSupport::uri(const QXmlName::PrefixCode prefixCode) const
       
   102 {
       
   103     return m_ns.value(prefixCode);
       
   104 }
       
   105 
       
   106 bool NamespaceSupport::processName(const QString& qname, NameType type, QXmlName &name) const
       
   107 {
       
   108     int len = qname.size();
       
   109     const QChar *data = qname.constData();
       
   110     for (int pos = 0; pos < len; ++pos) {
       
   111         if (data[pos] == QLatin1Char(':')) {
       
   112             const QXmlName::PrefixCode prefixCode = m_namePool->allocatePrefix(qname.left(pos));
       
   113             if (!m_ns.contains(prefixCode))
       
   114                 return false;
       
   115             const QXmlName::NamespaceCode namespaceCode = uri(prefixCode);
       
   116             const QXmlName::LocalNameCode localNameCode = m_namePool->allocateLocalName(qname.mid(pos + 1));
       
   117             name = QXmlName(namespaceCode, localNameCode, prefixCode);
       
   118             return true;
       
   119         }
       
   120     }
       
   121 
       
   122     // there was no ':'
       
   123     QXmlName::NamespaceCode namespaceCode = 0;
       
   124     // attributes don't take default namespace
       
   125     if (type == ElementName && !m_ns.isEmpty()) {
       
   126         namespaceCode = m_ns.value(0);   // get default namespace
       
   127     }
       
   128 
       
   129     const QXmlName::LocalNameCode localNameCode = m_namePool->allocateLocalName(qname);
       
   130     name = QXmlName(namespaceCode, localNameCode, 0);
       
   131 
       
   132     return true;
       
   133 }
       
   134 
       
   135 void NamespaceSupport::pushContext()
       
   136 {
       
   137     m_nsStack.push(m_ns);
       
   138 }
       
   139 
       
   140 void NamespaceSupport::popContext()
       
   141 {
       
   142     m_ns.clear();
       
   143     if(!m_nsStack.isEmpty())
       
   144         m_ns = m_nsStack.pop();
       
   145 }
       
   146 
       
   147 QList<QXmlName> NamespaceSupport::namespaceBindings() const
       
   148 {
       
   149     QList<QXmlName> bindings;
       
   150 
       
   151     QHashIterator<QXmlName::PrefixCode, QXmlName::NamespaceCode> it(m_ns);
       
   152     while (it.hasNext()) {
       
   153         it.next();
       
   154         bindings.append(QXmlName(it.value(), StandardLocalNames::empty, it.key()));
       
   155     }
       
   156 
       
   157     return bindings;
       
   158 }
       
   159 
       
   160 QT_END_NAMESPACE