1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtXmlPatterns module of the Qt Toolkit.
7**
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 The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
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 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#include "qanyuri_p.h"
41#include "qboolean_p.h"
42#include "qbuiltintypes_p.h"
43#include "qcommonvalues_p.h"
44#include "qliteral_p.h"
45#include "qitem_p.h"
46#include "qqnamevalue_p.h"
47#include "qatomicstring_p.h"
48
49#include "qaccessorfns_p.h"
50
51QT_BEGIN_NAMESPACE
52
53using namespace QPatternist;
54
55Item NodeNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
56{
57 const Item item(m_operands.first()->evaluateSingleton(context));
58
59 if(item)
60 {
61 const QXmlName name(item.asNode().name());
62
63 if(name.isNull())
64 return Item();
65 else
66 return toItem(atomicValue: QNameValue::fromValue(np: context->namePool(), name));
67 }
68 else
69 return Item();
70}
71
72Item NilledFN::evaluateSingleton(const DynamicContext::Ptr &context) const
73{
74 const Item item(m_operands.first()->evaluateSingleton(context));
75
76 if(item && item.asNode().kind() == QXmlNodeModelIndex::Element)
77 {
78 /* We have no access to the PSVI -- always return false. */
79 return CommonValues::BooleanFalse;
80 }
81 else
82 return Item();
83}
84
85Item StringFN::evaluateSingleton(const DynamicContext::Ptr &context) const
86{
87 const Item item(m_operands.first()->evaluateSingleton(context));
88
89 if(item)
90 return AtomicString::fromValue(value: item.stringValue());
91 else
92 return CommonValues::EmptyString;
93}
94
95Expression::Ptr StringFN::typeCheck(const StaticContext::Ptr &context,
96 const SequenceType::Ptr &reqType)
97{
98 const Expression::Ptr me(FunctionCall::typeCheck(context, reqType));
99 if(me != this)
100 return me;
101
102 if(BuiltinTypes::xsString->xdtTypeMatches(other: m_operands.first()->staticType()->itemType()))
103 return m_operands.first(); /* No need for string(), it's already a string. */
104 else
105 return me;
106}
107
108Item BaseURIFN::evaluateSingleton(const DynamicContext::Ptr &context) const
109{
110 const Item node(m_operands.first()->evaluateSingleton(context));
111
112 if(node)
113 {
114 const QUrl base(node.asNode().baseUri());
115
116 if(base.isEmpty())
117 return Item();
118 else if(base.isValid())
119 {
120 Q_ASSERT_X(!base.isRelative(), Q_FUNC_INFO,
121 "The base URI must be absolute.");
122 return toItem(atomicValue: AnyURI::fromValue(uri: base));
123 }
124 else
125 return Item();
126 }
127 else
128 return Item();
129}
130
131Item DocumentURIFN::evaluateSingleton(const DynamicContext::Ptr &context) const
132{
133 const Item node(m_operands.first()->evaluateSingleton(context));
134
135 if(node)
136 {
137 const QUrl documentURI(node.asNode().documentUri());
138
139 if(documentURI.isValid())
140 {
141 if(documentURI.isEmpty())
142 return Item();
143 else
144 {
145 Q_ASSERT_X(!documentURI.isRelative(), Q_FUNC_INFO,
146 "The document URI must be absolute.");
147 return toItem(atomicValue: AnyURI::fromValue(uri: documentURI));
148 }
149 }
150 else
151 return Item();
152 }
153 else
154 return Item();
155}
156
157QT_END_NAMESPACE
158

source code of qtxmlpatterns/src/xmlpatterns/functions/qaccessorfns.cpp