[2] | 1 | /****************************************************************************
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| 2 | **
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[651] | 3 | ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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[561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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[2] | 6 | **
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| 7 | ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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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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[561] | 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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[2] | 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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[561] | 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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[2] | 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 "qcommonsequencetypes_p.h"
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| 43 | #include "qpatternistlocale_p.h"
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| 44 | #include "qnodebuilder_p.h"
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| 45 | #include "qqnamevalue_p.h"
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| 46 |
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| 47 | #include "qprocessinginstructionconstructor_p.h"
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| 48 |
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| 49 | QT_BEGIN_NAMESPACE
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| 50 |
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| 51 | using namespace QPatternist;
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| 52 |
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| 53 | ProcessingInstructionConstructor::
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| 54 | ProcessingInstructionConstructor(const Expression::Ptr &op1,
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| 55 | const Expression::Ptr &op2) : PairContainer(op1, op2)
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| 56 | {
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| 57 | }
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| 58 |
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| 59 | QString ProcessingInstructionConstructor::leftTrimmed(const QString &input)
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| 60 | {
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| 61 | const int len = input.length();
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| 62 |
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| 63 | for(int i = 0; i < len; ++i)
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| 64 | {
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| 65 | if(!input.at(i).isSpace())
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| 66 | return input.mid(i);
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| 67 | }
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| 68 |
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| 69 | return QString(); /* input consists only of whitespace. All was trimmed. */
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| 70 | }
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| 71 |
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| 72 | QString ProcessingInstructionConstructor::data(const DynamicContext::Ptr &context) const
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| 73 | {
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| 74 | const Item name(m_operand1->evaluateSingleton(context));
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| 75 | const Item dataArg(m_operand2->evaluateSingleton(context));
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| 76 |
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| 77 | if(dataArg)
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| 78 | {
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| 79 | /* Perform trimming before validation, to increase speed. */
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| 80 | const QString value(leftTrimmed(dataArg.stringValue()));
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| 81 |
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| 82 | if(value.contains(QLatin1String("?>")))
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| 83 | {
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| 84 | context->error(QtXmlPatterns::tr("The data of a processing instruction cannot contain the string %1").arg(formatData("?>")),
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| 85 | ReportContext::XQDY0026, this);
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| 86 | return QString();
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| 87 | }
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| 88 | else
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| 89 | return value;
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| 90 | }
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| 91 | else
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| 92 | return QString();
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| 93 | }
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| 94 |
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| 95 | QXmlName ProcessingInstructionConstructor::evaluateTardata(const DynamicContext::Ptr &context) const
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| 96 | {
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| 97 | const Item name(m_operand1->evaluateSingleton(context));
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| 98 | return context->namePool()->allocateQName(QString(), name.stringValue());
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| 99 | }
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| 100 |
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| 101 | Item ProcessingInstructionConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
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| 102 | {
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| 103 | const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(QUrl()));
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| 104 |
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| 105 | nodeBuilder->processingInstruction(evaluateTardata(context), data(context));
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| 106 |
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| 107 | const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument());
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| 108 | context->addNodeModel(nm);
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| 109 |
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| 110 | return nm->root(QXmlNodeModelIndex());
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| 111 | }
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| 112 |
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| 113 | void ProcessingInstructionConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
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| 114 | {
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| 115 | QAbstractXmlReceiver *const receiver = context->outputReceiver();
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| 116 |
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| 117 | receiver->processingInstruction(evaluateTardata(context), data(context));
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| 118 | }
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| 119 |
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| 120 | SequenceType::Ptr ProcessingInstructionConstructor::staticType() const
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| 121 | {
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| 122 | return CommonSequenceTypes::ExactlyOneProcessingInstruction;
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| 123 | }
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| 124 |
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| 125 | SequenceType::List ProcessingInstructionConstructor::expectedOperandTypes() const
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| 126 | {
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| 127 | SequenceType::List result;
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| 128 | result.append(CommonSequenceTypes::ExactlyOneString);
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| 129 | result.append(CommonSequenceTypes::ZeroOrOneString);
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| 130 | return result;
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| 131 | }
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| 132 |
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| 133 | Expression::Properties ProcessingInstructionConstructor::properties() const
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| 134 | {
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| 135 | return DisableElimination | IsNodeConstructor;
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| 136 | }
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| 137 |
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| 138 | ExpressionVisitorResult::Ptr
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| 139 | ProcessingInstructionConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
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| 140 | {
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| 141 | return visitor->visit(this);
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| 142 | }
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| 143 |
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| 144 | QT_END_NAMESPACE
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