src/xmlpatterns/data/qboolean.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/data/qboolean.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,137 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 "qatomictype_p.h"
+#include "qbuiltintypes_p.h"
+#include "qcommonvalues_p.h"
+#include "qdynamiccontext_p.h"
+#include "qpatternistlocale_p.h"
+#include "qvalidationerror_p.h"
+
+#include "qboolean_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+bool Boolean::evaluateEBV(const Item::Iterator::Ptr &it,
+                          const QExplicitlySharedDataPointer<DynamicContext> &context)
+{
+    return evaluateEBV(it->next(), it, context);
+}
+
+bool Boolean::evaluateEBV(const Item &first,
+                          const Item::Iterator::Ptr &it,
+                          const QExplicitlySharedDataPointer<DynamicContext> &context)
+{
+    Q_ASSERT(it);
+    Q_ASSERT(context);
+
+    if(!first)
+        return false;
+    else if(first.isNode())
+        return true;
+
+    const Item second(it->next());
+
+    if(second)
+    {
+        Q_ASSERT(context);
+        context->error(QtXmlPatterns::tr("Effective Boolean Value cannot be calculated for a sequence "
+                                         "containing two or more atomic values."),
+                          ReportContext::FORG0006,
+                          QSourceLocation());
+        return false;
+    }
+    else
+        return first.as<AtomicValue>()->evaluateEBV(context);
+}
+
+bool Boolean::evaluateEBV(const Item &item,
+                          const QExplicitlySharedDataPointer<DynamicContext> &context)
+{
+    if(!item)
+        return false;
+    else if(item.isNode())
+        return true;
+    else
+        return item.as<AtomicValue>()->evaluateEBV(context);
+}
+
+Boolean::Boolean(const bool value) : m_value(value)
+{
+}
+
+QString Boolean::stringValue() const
+{
+    return m_value
+            ? CommonValues::TrueString->stringValue()
+            : CommonValues::FalseString->stringValue();
+}
+
+bool Boolean::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+    return m_value;
+}
+
+Boolean::Ptr Boolean::fromValue(const bool value)
+{
+    return value ? CommonValues::BooleanTrue : CommonValues::BooleanFalse;
+}
+
+AtomicValue::Ptr Boolean::fromLexical(const QString &lexical)
+{
+    const QString val(lexical.trimmed()); /* Apply the whitespace facet. */
+
+    if(val == QLatin1String("true") || val == QChar(QLatin1Char('1')))
+        return CommonValues::BooleanTrue;
+    else if(val == QLatin1String("false") || val == QChar(QLatin1Char('0')))
+        return CommonValues::BooleanFalse;
+    else
+        return ValidationError::createError();
+}
+
+ItemType::Ptr Boolean::type() const
+{
+    return BuiltinTypes::xsBoolean;
+}
+
+QT_END_NAMESPACE