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 "qcommonsequencetypes_p.h"
41 #include "qpatternistlocale_p.h"
42 #include "qnodebuilder_p.h"
43 
44 #include "qcommentconstructor_p.h"
45 
46 QT_BEGIN_NAMESPACE
47 
48 using namespace QPatternist;
49 
CommentConstructor(const Expression::Ptr & op)50 CommentConstructor::CommentConstructor(const Expression::Ptr &op) : SingleContainer(op)
51 {
52 }
53 
evaluateContent(const DynamicContext::Ptr & context) const54 QString CommentConstructor::evaluateContent(const DynamicContext::Ptr &context) const
55 {
56     const Item item(m_operand->evaluateSingleton(context));
57 
58     if(!item)
59         return QString();
60 
61     const QString content(item.stringValue());
62 
63     if(content.contains(QLatin1String("--")))
64     {
65         context->error(QtXmlPatterns::tr("A comment cannot contain %1")
66                        .arg(formatData("--")),
67                        ReportContext::XQDY0072, this);
68     }
69     else if(content.endsWith(QLatin1Char('-')))
70     {
71         context->error(QtXmlPatterns::tr("A comment cannot end with a %1.")
72                        .arg(formatData(QLatin1Char('-'))),
73                        ReportContext::XQDY0072, this);
74     }
75 
76     return content;
77 }
78 
evaluateSingleton(const DynamicContext::Ptr & context) const79 Item CommentConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
80 {
81     const QString content(evaluateContent(context));
82     const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(QUrl()));
83     nodeBuilder->comment(content);
84 
85     const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument());
86     context->addNodeModel(nm);
87 
88     return nm->root(QXmlNodeModelIndex());
89 }
90 
evaluateToSequenceReceiver(const DynamicContext::Ptr & context) const91 void CommentConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
92 {
93     const QString content(evaluateContent(context));
94     QAbstractXmlReceiver *const receiver = context->outputReceiver();
95 
96     receiver->comment(content);
97 }
98 
staticType() const99 SequenceType::Ptr CommentConstructor::staticType() const
100 {
101     return CommonSequenceTypes::ExactlyOneComment;
102 }
103 
expectedOperandTypes() const104 SequenceType::List CommentConstructor::expectedOperandTypes() const
105 {
106     SequenceType::List result;
107     result.append(CommonSequenceTypes::ZeroOrOneString);
108     return result;
109 }
110 
properties() const111 Expression::Properties CommentConstructor::properties() const
112 {
113     return DisableElimination | IsNodeConstructor;
114 }
115 
116 ExpressionVisitorResult::Ptr
accept(const ExpressionVisitor::Ptr & visitor) const117 CommentConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
118 {
119     return visitor->visit(this);
120 }
121 
122 QT_END_NAMESPACE
123