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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commite1b2c9deb5943faae2b29be6a5c006f75bb73f06 (patch)
treefc79e45367c0a8fc71185e9afc33f7503a58653c /src/xmlpatterns/expr/qxsltsimplecontentconstructor.cpp
downloadqtxmlpatterns-e1b2c9deb5943faae2b29be6a5c006f75bb73f06.tar.gz
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
Diffstat (limited to 'src/xmlpatterns/expr/qxsltsimplecontentconstructor.cpp')
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diff --git a/src/xmlpatterns/expr/qxsltsimplecontentconstructor.cpp b/src/xmlpatterns/expr/qxsltsimplecontentconstructor.cpp
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+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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