| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
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| ****************************************************************************/ |
| |
| #include "qcommonsequencetypes_p.h" |
| #include "qpatternistlocale_p.h" |
| #include "qnodebuilder_p.h" |
| #include "qqnamevalue_p.h" |
| |
| #include "qprocessinginstructionconstructor_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace QPatternist; |
| |
| ProcessingInstructionConstructor:: |
| ProcessingInstructionConstructor(const Expression::Ptr &op1, |
| const Expression::Ptr &op2) : PairContainer(op1, op2) |
| { |
| } |
| |
| QString ProcessingInstructionConstructor::leftTrimmed(const QString &input) |
| { |
| const int len = input.length(); |
| |
| for(int i = 0; i < len; ++i) |
| { |
| if(!input.at(i).isSpace()) |
| return input.mid(i); |
| } |
| |
| return QString(); /* input consists only of whitespace. All was trimmed. */ |
| } |
| |
| QString ProcessingInstructionConstructor::data(const DynamicContext::Ptr &context) const |
| { |
| const Item name(m_operand1->evaluateSingleton(context)); |
| const Item dataArg(m_operand2->evaluateSingleton(context)); |
| |
| if(dataArg) |
| { |
| /* Perform trimming before validation, to increase speed. */ |
| const QString value(leftTrimmed(dataArg.stringValue())); |
| |
| if(value.contains(QLatin1String("?>"))) |
| { |
| context->error(QtXmlPatterns::tr("The data of a processing instruction cannot contain the string %1").arg(formatData("?>")), |
| ReportContext::XQDY0026, this); |
| return QString(); |
| } |
| else |
| return value; |
| } |
| else |
| return QString(); |
| } |
| |
| QXmlName ProcessingInstructionConstructor::evaluateTardata(const DynamicContext::Ptr &context) const |
| { |
| const Item name(m_operand1->evaluateSingleton(context)); |
| return context->namePool()->allocateQName(QString(), name.stringValue()); |
| } |
| |
| Item ProcessingInstructionConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const |
| { |
| const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(QUrl())); |
| |
| nodeBuilder->processingInstruction(evaluateTardata(context), data(context)); |
| |
| const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument()); |
| context->addNodeModel(nm); |
| |
| return nm->root(QXmlNodeModelIndex()); |
| } |
| |
| void ProcessingInstructionConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const |
| { |
| QAbstractXmlReceiver *const receiver = context->outputReceiver(); |
| |
| receiver->processingInstruction(evaluateTardata(context), data(context)); |
| } |
| |
| SequenceType::Ptr ProcessingInstructionConstructor::staticType() const |
| { |
| return CommonSequenceTypes::ExactlyOneProcessingInstruction; |
| } |
| |
| SequenceType::List ProcessingInstructionConstructor::expectedOperandTypes() const |
| { |
| SequenceType::List result; |
| result.append(CommonSequenceTypes::ExactlyOneString); |
| result.append(CommonSequenceTypes::ZeroOrOneString); |
| return result; |
| } |
| |
| Expression::Properties ProcessingInstructionConstructor::properties() const |
| { |
| return DisableElimination | IsNodeConstructor; |
| } |
| |
| ExpressionVisitorResult::Ptr |
| ProcessingInstructionConstructor::accept(const ExpressionVisitor::Ptr &visitor) const |
| { |
| return visitor->visit(this); |
| } |
| |
| QT_END_NAMESPACE |