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39
40#include "qcommonsequencetypes_p.h"
41#include "qpatternistlocale_p.h"
42#include "qnodebuilder_p.h"
43
44#include "qcommentconstructor_p.h"
45
46QT_BEGIN_NAMESPACE
47
48using namespace QPatternist;
49
50CommentConstructor::CommentConstructor(const Expression::Ptr &op) : SingleContainer(op)
51{
52}
53
54QString 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(s: QLatin1String("--")))
64 {
65 context->error(message: QtXmlPatterns::tr(sourceText: "A comment cannot contain %1")
66 .arg(a: formatData(data: "--")),
67 errorCode: ReportContext::XQDY0072, reflection: this);
68 }
69 else if(content.endsWith(c: QLatin1Char('-')))
70 {
71 context->error(message: QtXmlPatterns::tr(sourceText: "A comment cannot end with a %1.")
72 .arg(a: formatData(data: QLatin1Char('-'))),
73 errorCode: ReportContext::XQDY0072, reflection: this);
74 }
75
76 return content;
77}
78
79Item CommentConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
80{
81 const QString content(evaluateContent(context));
82 const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(baseURI: QUrl()));
83 nodeBuilder->comment(value: content);
84
85 const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument());
86 context->addNodeModel(nm);
87
88 return nm->root(n: QXmlNodeModelIndex());
89}
90
91void CommentConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
92{
93 const QString content(evaluateContent(context));
94 QAbstractXmlReceiver *const receiver = context->outputReceiver();
95
96 receiver->comment(value: content);
97}
98
99SequenceType::Ptr CommentConstructor::staticType() const
100{
101 return CommonSequenceTypes::ExactlyOneComment;
102}
103
104SequenceType::List CommentConstructor::expectedOperandTypes() const
105{
106 SequenceType::List result;
107 result.append(t: CommonSequenceTypes::ZeroOrOneString);
108 return result;
109}
110
111Expression::Properties CommentConstructor::properties() const
112{
113 return DisableElimination | IsNodeConstructor;
114}
115
116ExpressionVisitorResult::Ptr
117CommentConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
118{
119 return visitor->visit(this);
120}
121
122QT_END_NAMESPACE
123

source code of qtxmlpatterns/src/xmlpatterns/expr/qcommentconstructor.cpp