| /**************************************************************************** |
| ** |
| ** 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. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** 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 |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** 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 |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qatomicstring_p.h" |
| #include "qcommonsequencetypes_p.h" |
| |
| #include "qxsltsimplecontentconstructor_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace QPatternist; |
| |
| XSLTSimpleContentConstructor::XSLTSimpleContentConstructor(const Expression::Ptr &source) : SimpleContentConstructor(source) |
| { |
| } |
| |
| QString XSLTSimpleContentConstructor::processItem(const Item &item, |
| bool &discard, |
| bool &isText) |
| { |
| if(item.isNode()) |
| { |
| isText = (item.asNode().kind() == QXmlNodeModelIndex::Text); |
| |
| if(isText) |
| { |
| const QString value(item.stringValue()); |
| |
| /* "1. Zero-length text nodes in the sequence are discarded." */ |
| discard = value.isEmpty(); |
| return value; |
| } |
| else |
| { |
| Item::Iterator::Ptr it(item.sequencedTypedValue()); /* Atomic values. */ |
| Item next(it->next()); |
| QString result; |
| |
| if(next) |
| result = next.stringValue(); |
| |
| next = it->next(); |
| |
| while(next) |
| { |
| result += next.stringValue(); |
| result += QLatin1Char(' '); |
| next = it->next(); |
| } |
| |
| return result; |
| } |
| } |
| else |
| { |
| discard = false; |
| isText = false; |
| return item.stringValue(); |
| } |
| } |
| |
| Item XSLTSimpleContentConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const |
| { |
| const Item::Iterator::Ptr it(m_operand->evaluateSequence(context)); |
| |
| Item next(it->next()); |
| QString result; |
| |
| bool previousIsText = false; |
| bool discard = false; |
| |
| if(next) |
| { |
| const QString unit(processItem(next, discard, previousIsText)); |
| |
| if(!discard) |
| result = unit; |
| |
| next = it->next(); |
| } |
| else |
| return Item(); |
| |
| while(next) |
| { |
| bool currentIsText = false; |
| const QString unit(processItem(next, discard, currentIsText)); |
| |
| if(!discard) |
| { |
| /* "Adjacent text nodes in the sequence are merged into a single text |
| * node." */ |
| if(previousIsText && currentIsText) |
| ; |
| else |
| result += QLatin1Char(' '); |
| |
| result += unit; |
| } |
| |
| next = it->next(); |
| previousIsText = currentIsText; |
| } |
| |
| return AtomicString::fromValue(result); |
| } |
| |
| SequenceType::List XSLTSimpleContentConstructor::expectedOperandTypes() const |
| { |
| SequenceType::List result; |
| result.append(CommonSequenceTypes::ZeroOrMoreItems); |
| return result; |
| } |
| |
| SequenceType::Ptr XSLTSimpleContentConstructor::staticType() const |
| { |
| return CommonSequenceTypes::ZeroOrOneString; |
| } |
| |
| QT_END_NAMESPACE |