| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** This file may be used under the terms of the GNU Lesser General Public |
| ** License version 2.1 as published by the Free Software Foundation and |
| ** appearing in the file LICENSE.LGPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU Lesser |
| ** General Public License version 2.1 requirements will be met: |
| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** In addition, as a special exception, Nokia gives you certain additional |
| ** rights. These rights are described in the Nokia Qt LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
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| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qcommonsequencetypes_p.h" |
| #include "qatomicstring_p.h" |
| |
| #include "qsimplecontentconstructor_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace QPatternist; |
| |
| SimpleContentConstructor::SimpleContentConstructor(const Expression::Ptr &operand) : SingleContainer(operand) |
| { |
| } |
| |
| Item SimpleContentConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const |
| { |
| const Item::Iterator::Ptr it(m_operand->evaluateSequence(context)); |
| Item next(it->next()); |
| QString result; |
| |
| if(next) |
| { |
| result = next.stringValue(); |
| next = it->next(); |
| } |
| else |
| return Item(); |
| |
| while(next) |
| { |
| result += QLatin1Char(' '); |
| result += next.stringValue(); |
| next = it->next(); |
| } |
| |
| return AtomicString::fromValue(result); |
| } |
| |
| Expression::Ptr SimpleContentConstructor::compress(const StaticContext::Ptr &context) |
| { |
| const Expression::Ptr me(SingleContainer::compress(context)); |
| |
| if(me.data() == this) |
| { |
| /* Optimization: if we will evaluate to a single string, we're not |
| * necessary. */ |
| if(CommonSequenceTypes::ExactlyOneString->matches(m_operand->staticType())) |
| return m_operand; |
| } |
| |
| return me; |
| } |
| |
| SequenceType::List SimpleContentConstructor::expectedOperandTypes() const |
| { |
| SequenceType::List result; |
| result.append(CommonSequenceTypes::ZeroOrMoreAtomicTypes); |
| return result; |
| } |
| |
| SequenceType::Ptr SimpleContentConstructor::staticType() const |
| { |
| if(m_operand->staticType()->cardinality().allowsEmpty()) |
| return CommonSequenceTypes::ZeroOrOneString; |
| else |
| return CommonSequenceTypes::ExactlyOneString; |
| } |
| |
| ExpressionVisitorResult::Ptr SimpleContentConstructor::accept(const ExpressionVisitor::Ptr &visitor) const |
| { |
| return visitor->visit(this); |
| } |
| |
| QT_END_NAMESPACE |