|
1 /**************************************************************************** |
|
2 ** |
|
3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
|
4 ** All rights reserved. |
|
5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
|
6 ** |
|
7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
|
8 ** |
|
9 ** $QT_BEGIN_LICENSE:LGPL$ |
|
10 ** No Commercial Usage |
|
11 ** This file contains pre-release code and may not be distributed. |
|
12 ** You may use this file in accordance with the terms and conditions |
|
13 ** contained in the Technology Preview License Agreement accompanying |
|
14 ** this package. |
|
15 ** |
|
16 ** GNU Lesser General Public License Usage |
|
17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
|
18 ** General Public License version 2.1 as published by the Free Software |
|
19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
|
20 ** packaging of this file. Please review the following information to |
|
21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
|
22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
|
23 ** |
|
24 ** In addition, as a special exception, Nokia gives you certain additional |
|
25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
|
26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
|
27 ** |
|
28 ** If you have questions regarding the use of this file, please contact |
|
29 ** Nokia at qt-info@nokia.com. |
|
30 ** |
|
31 ** |
|
32 ** |
|
33 ** |
|
34 ** |
|
35 ** |
|
36 ** |
|
37 ** |
|
38 ** $QT_END_LICENSE$ |
|
39 ** |
|
40 ****************************************************************************/ |
|
41 |
|
42 #include <QUrl> |
|
43 |
|
44 #include "qcommonsequencetypes_p.h" |
|
45 #include "qnodebuilder_p.h" |
|
46 |
|
47 #include "qtextnodeconstructor_p.h" |
|
48 |
|
49 QT_BEGIN_NAMESPACE |
|
50 |
|
51 using namespace QPatternist; |
|
52 |
|
53 TextNodeConstructor::TextNodeConstructor(const Expression::Ptr &op) : SingleContainer(op) |
|
54 { |
|
55 } |
|
56 |
|
57 Item TextNodeConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const |
|
58 { |
|
59 const Item chars(m_operand->evaluateSingleton(context)); |
|
60 |
|
61 if(!chars) |
|
62 return Item(); |
|
63 |
|
64 const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(QUrl())); |
|
65 const QString &v = chars.stringValue(); |
|
66 nodeBuilder->characters(QStringRef(&v)); |
|
67 |
|
68 const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument()); |
|
69 context->addNodeModel(nm); |
|
70 |
|
71 return nm->root(QXmlNodeModelIndex()); |
|
72 } |
|
73 |
|
74 void TextNodeConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const |
|
75 { |
|
76 const Item item(m_operand->evaluateSingleton(context)); |
|
77 |
|
78 QAbstractXmlReceiver *const receiver = context->outputReceiver(); |
|
79 |
|
80 if(item) |
|
81 { |
|
82 const QString &v = item.stringValue(); |
|
83 receiver->characters(QStringRef(&v)); |
|
84 } |
|
85 else |
|
86 receiver->characters(QStringRef()); |
|
87 } |
|
88 |
|
89 SequenceType::Ptr TextNodeConstructor::staticType() const |
|
90 { |
|
91 if(m_operand->staticType()->cardinality().allowsEmpty()) |
|
92 return CommonSequenceTypes::ZeroOrOneTextNode; |
|
93 else |
|
94 return CommonSequenceTypes::ExactlyOneTextNode; |
|
95 } |
|
96 |
|
97 SequenceType::List TextNodeConstructor::expectedOperandTypes() const |
|
98 { |
|
99 SequenceType::List result; |
|
100 result.append(CommonSequenceTypes::ZeroOrOneString); |
|
101 return result; |
|
102 } |
|
103 |
|
104 Expression::Properties TextNodeConstructor::properties() const |
|
105 { |
|
106 return DisableElimination | IsNodeConstructor; |
|
107 } |
|
108 |
|
109 ExpressionVisitorResult::Ptr |
|
110 TextNodeConstructor::accept(const ExpressionVisitor::Ptr &visitor) const |
|
111 { |
|
112 return visitor->visit(this); |
|
113 } |
|
114 |
|
115 QT_END_NAMESPACE |