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.

    27 **

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

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

    30 **

    31 **

    32 **

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    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

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

    41 

    42 #include "qboolean_p.h"

    43 #include "qcommonvalues_p.h"

    44 #include "qliteral_p.h"

    45 #include "qatomicstring_p.h"

    46 

    47 #include "qsubstringfns_p.h"

    48 

    49 QT_BEGIN_NAMESPACE

    50 

    51 using namespace QPatternist;

    52 

    53 Item ContainsFN::evaluateSingleton(const DynamicContext::Ptr &context) const

    54 {

    55     const Item op1(m_operands.first()->evaluateSingleton(context));

    56     QString str1;

    57 

    58     if(op1)

    59         str1 = op1.stringValue();

    60 

    61     const Item op2(m_operands.at(1)->evaluateSingleton(context));

    62     QString str2;

    63 

    64     if(op2)

    65         str2 = op2.stringValue();

    66 

    67     if(str2.isEmpty())

    68         return CommonValues::BooleanTrue;

    69 

    70     if(str1.isEmpty())

    71         return CommonValues::BooleanFalse;

    72 

    73     return Boolean::fromValue(str1.contains(str2, caseSensitivity()));

    74 }

    75 

    76 Item StartsWithFN::evaluateSingleton(const DynamicContext::Ptr &context) const

    77 {

    78     const Item op1(m_operands.first()->evaluateSingleton(context));

    79     QString str1;

    80 

    81     if(op1)

    82         str1 = op1.stringValue();

    83 

    84     const Item op2(m_operands.at(1)->evaluateSingleton(context));

    85     QString str2;

    86 

    87     if(op2)

    88         str2 = op2.stringValue();

    89 

    90     if(str2.isEmpty())

    91         return CommonValues::BooleanTrue;

    92 

    93     if(str1.isEmpty())

    94         return CommonValues::BooleanFalse;

    95 

    96     return Boolean::fromValue(str1.startsWith(str2, caseSensitivity()));

    97 }

    98 

    99 Item EndsWithFN::evaluateSingleton(const DynamicContext::Ptr &context) const

   100 {

   101     const Item op1(m_operands.first()->evaluateSingleton(context));

   102     QString str1;

   103 

   104     if(op1)

   105         str1 = op1.stringValue();

   106 

   107     const Item op2(m_operands.at(1)->evaluateSingleton(context));

   108     QString str2;

   109 

   110     if(op2)

   111         str2 = op2.stringValue();

   112 

   113     if(str2.isEmpty())

   114         return CommonValues::BooleanTrue;

   115 

   116     if(str1.isEmpty())

   117         return CommonValues::BooleanFalse;

   118 

   119     return Boolean::fromValue(str1.endsWith(str2, caseSensitivity()));

   120 }

   121 

   122 Item SubstringBeforeFN::evaluateSingleton(const DynamicContext::Ptr &context) const

   123 {

   124     const Item op1(m_operands.first()->evaluateSingleton(context));

   125     QString str1;

   126 

   127     if(op1)

   128         str1 = op1.stringValue();

   129 

   130     const Item op2(m_operands.at(1)->evaluateSingleton(context));

   131     QString str2;

   132 

   133     if(op2)

   134         str2 = op2.stringValue();

   135 

   136     const int pos = str1.indexOf(str2);

   137     if(pos == -1)

   138         return CommonValues::EmptyString;

   139 

   140     return AtomicString::fromValue(QString(str1.left(pos)));

   141 }

   142 

   143 Item SubstringAfterFN::evaluateSingleton(const DynamicContext::Ptr &context) const

   144 {

   145     const Item op1(m_operands.first()->evaluateSingleton(context));

   146     QString str1;

   147 

   148     if(op1)

   149         str1 = op1.stringValue();

   150 

   151     const Item op2(m_operands.at(1)->evaluateSingleton(context));

   152     QString str2;

   153 

   154     if(op2)

   155         str2 = op2.stringValue();

   156 

   157     if(str2.isEmpty())

   158     {

   159         if(op1)

   160             return op1;

   161         else

   162             return CommonValues::EmptyString;

   163     }

   164 

   165     const int pos = str1.indexOf(str2);

   166 

   167     if(pos == -1)

   168         return CommonValues::EmptyString;

   169 

   170     return AtomicString::fromValue(QString(str1.right(str1.length() - (pos + str2.length()))));

   171 }

   172 

   173 QT_END_NAMESPACE