1 /****************************************************************************
3 ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/legal
6 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** Commercial License Usage
10 ** Licensees holding valid commercial Qt licenses may use this file in
11 ** accordance with the commercial license agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and Digia. For licensing terms and
14 ** conditions see http://qt.digia.com/licensing. For further information
15 ** use the contact form at http://qt.digia.com/contact-us.
17 ** GNU Lesser General Public License Usage
18 ** Alternatively, this file may be used under the terms of the GNU Lesser
19 ** General Public License version 2.1 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPL included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 2.1 requirements
23 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
25 ** In addition, as a special exception, Digia gives you certain additional
26 ** rights. These rights are described in the Digia Qt LGPL Exception
27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
29 ** GNU General Public License Usage
30 ** Alternatively, this file may be used under the terms of the GNU
31 ** General Public License version 3.0 as published by the Free Software
32 ** Foundation and appearing in the file LICENSE.GPL included in the
33 ** packaging of this file. Please review the following information to
34 ** ensure the GNU General Public License version 3.0 requirements will be
35 ** met: http://www.gnu.org/copyleft/gpl.html.
40 ****************************************************************************/
46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
52 #ifndef Patternist_QNameConstructor_H
53 #define Patternist_QNameConstructor_H
55 #include <private/qsinglecontainer_p.h>
56 #include <private/qbuiltintypes_p.h>
57 #include <private/qpatternistlocale_p.h>
58 #include <private/qxpathhelper_p.h>
67 * @short Creates an @c xs:QName value from a lexical QName using
68 * statically known namespace bindings.
72 * @author Frans Englich <frans.englich@nokia.com>
73 * @ingroup Patternist_expressions
75 class QNameConstructor : public SingleContainer
79 QNameConstructor(const Expression::Ptr &source,
80 const NamespaceResolver::Ptr &nsResolver);
82 virtual Item evaluateSingleton(const DynamicContext::Ptr &) const;
84 virtual SequenceType::List expectedOperandTypes() const;
86 virtual SequenceType::Ptr staticType() const;
88 virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
91 * Expands @p lexicalQName, which is a lexical representation of a QName such as "x:body", into
92 * a QName using @p nsResolver to supply the namespace bindings.
94 * If @p lexicalQName is lexically invalid @p InvalidQName is raised via @p context, or if
95 * no namespace binding does not exists for a prefix(if any) in @p lexicalQName, @p NoBinding
96 * is raised via @p context.
98 * If @p asForAttribute is @c true, the name is considered to be for an
99 * attribute in some way, and @p lexicalQName will not pick up the
100 * default namespace if it doesn't have a prefix.
102 * @p nsResolver is parameterized meaning the function can be instantiated with either
103 * DynamicContext or StaticContext.
108 template<typename TReportContext,
109 const ReportContext::ErrorCode InvalidQName,
110 const ReportContext::ErrorCode NoBinding>
112 QXmlName expandQName(const QString &lexicalQName,
113 const TReportContext &context,
114 const NamespaceResolver::Ptr &nsResolver,
115 const SourceLocationReflection *const r,
116 const bool asForAttribute = false);
119 * Resolves the namespace prefix @p prefix to its namespace if it exists, or
120 * raised ReportContext::XPST0081 otherwise.
122 * @returns the namespace URI corresponding to @p prefix
124 static QXmlName::NamespaceCode namespaceForPrefix(const QXmlName::PrefixCode prefix,
125 const StaticContext::Ptr &context,
126 const SourceLocationReflection *const r);
128 virtual const SourceLocationReflection *actualReflection() const;
131 const NamespaceResolver::Ptr m_nsResolver;
134 template<typename TReportContext,
135 const ReportContext::ErrorCode InvalidQName,
136 const ReportContext::ErrorCode NoBinding>
137 QXmlName QNameConstructor::expandQName(const QString &lexicalQName,
138 const TReportContext &context,
139 const NamespaceResolver::Ptr &nsResolver,
140 const SourceLocationReflection *const r,
141 const bool asForAttribute)
143 Q_ASSERT(nsResolver);
146 if(XPathHelper::isQName(lexicalQName))
150 XPathHelper::splitQName(lexicalQName, prefix, local);
151 const QXmlName::NamespaceCode nsCode = asForAttribute && prefix.isEmpty() ? QXmlName::NamespaceCode(StandardNamespaces::empty)
152 : (nsResolver->lookupNamespaceURI(context->namePool()->allocatePrefix(prefix)));
154 if(nsCode == NamespaceResolver::NoBinding)
156 context->error(QtXmlPatterns::tr("No namespace binding exists for "
157 "the prefix %1 in %2").arg(formatKeyword(prefix),
158 formatKeyword(lexicalQName)),
161 return QXmlName(); /* Silence compiler warning. */
164 return context->namePool()->allocateQName(context->namePool()->stringForNamespace(nsCode), local, prefix);
168 context->error(QtXmlPatterns::tr("%1 is an invalid %2")
169 .arg(formatData(lexicalQName))
170 .arg(formatType(context->namePool(), BuiltinTypes::xsQName)),
173 return QXmlName(); /* Silence compiler warning. */