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 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.

    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.

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

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

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    36 **

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    38 ** $QT_END_LICENSE$

    39 **

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

    41 

    42 #include <QStringList>

    43 

    44 #include "private/qxmlutils_p.h"

    45 #include "qbuiltintypes_p.h"

    46 #include "qcommonvalues_p.h"

    47 #include "qnamepool_p.h"

    48 

    49 #include "qxpathhelper_p.h"

    50 

    51 QT_BEGIN_NAMESPACE

    52 

    53 using namespace QPatternist;

    54 

    55 bool XPathHelper::isReservedNamespace(const QXmlName::NamespaceCode ns)

    56 {

    57     /* The order is because of that XFN and WXS are the most common. */

    58     return ns == StandardNamespaces::fn     ||

    59            ns == StandardNamespaces::xs     ||

    60            ns == StandardNamespaces::xml    ||

    61            ns == StandardNamespaces::xsi;

    62 }

    63 

    64 bool XPathHelper::isQName(const QString &qName)

    65 {

    66     const QStringList result(qName.split(QLatin1Char(':')));

    67     const int c = result.count();

    68 

    69     if(c == 2)

    70     {

    71         return QXmlUtils::isNCName(result.first()) &&

    72                QXmlUtils::isNCName(result.last());

    73     }

    74     else if(c == 1)

    75         return QXmlUtils::isNCName(result.first());

    76     else

    77         return false;

    78 }

    79 

    80 void XPathHelper::splitQName(const QString &qName, QString &prefix, QString &ncName)

    81 {

    82     Q_ASSERT_X(isQName(qName), Q_FUNC_INFO,

    83                "qName must be a valid QName.");

    84 

    85     const QStringList result(qName.split(QLatin1Char(':')));

    86 

    87     if(result.count() == 1)

    88     {

    89         Q_ASSERT(QXmlUtils::isNCName(result.first()));

    90         ncName = result.first();

    91     }

    92     else

    93     {

    94         Q_ASSERT(result.count() == 2);

    95         Q_ASSERT(QXmlUtils::isNCName(result.first()));

    96         Q_ASSERT(QXmlUtils::isNCName(result.last()));

    97 

    98         prefix = result.first();

    99         ncName = result.last();

   100     }

   101 }

   102 

   103 ItemType::Ptr XPathHelper::typeFromKind(const QXmlNodeModelIndex::NodeKind nodeKind)

   104 {

   105     switch(nodeKind)

   106     {

   107         case QXmlNodeModelIndex::Element:

   108             return BuiltinTypes::element;

   109         case QXmlNodeModelIndex::Attribute:

   110             return BuiltinTypes::attribute;

   111         case QXmlNodeModelIndex::Text:

   112             return BuiltinTypes::text;

   113         case QXmlNodeModelIndex::ProcessingInstruction:

   114             return BuiltinTypes::pi;

   115         case QXmlNodeModelIndex::Comment:

   116             return BuiltinTypes::comment;

   117         case QXmlNodeModelIndex::Document:

   118             return BuiltinTypes::document;

   119         default:

   120         {

   121             Q_ASSERT_X(false, Q_FUNC_INFO,

   122                        "A node type that doesn't exist in the XPath Data Model was encountered.");

   123             return ItemType::Ptr(); /* Dummy, silence compiler warning. */

   124         }

   125     }

   126 }

   127 

   128 QUrl XPathHelper::normalizeQueryURI(const QUrl &uri)

   129 {

   130     Q_ASSERT_X(uri.isEmpty() || uri.isValid(), Q_FUNC_INFO,

   131                "The URI passed to QXmlQuery::setQuery() must be valid or empty.");

   132     if(uri.isEmpty())

   133         return QUrl::fromLocalFile(QCoreApplication::applicationFilePath());

   134     else if(uri.isRelative())

   135         return QUrl::fromLocalFile(QCoreApplication::applicationFilePath()).resolved(uri);

   136     else

   137         return uri;

   138 }

   139 

   140 QT_END_NAMESPACE