Qt 4.8
qcommentconstructor.cpp
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41 
42 #include "qcommonsequencetypes_p.h"
43 #include "qpatternistlocale_p.h"
44 #include "qnodebuilder_p.h"
45 
46 #include "qcommentconstructor_p.h"
47 
49 
50 using namespace QPatternist;
51 
53 {
54 }
55 
57 {
58  const Item item(m_operand->evaluateSingleton(context));
59 
60  if(!item)
61  return QString();
62 
63  const QString content(item.stringValue());
64 
65  if(content.contains(QLatin1String("--")))
66  {
67  context->error(QtXmlPatterns::tr("A comment cannot contain %1")
68  .arg(formatData("--")),
70  }
71  else if(content.endsWith(QLatin1Char('-')))
72  {
73  context->error(QtXmlPatterns::tr("A comment cannot end with a %1.")
74  .arg(formatData(QLatin1Char('-'))),
76  }
77 
78  return content;
79 }
80 
82 {
83  const QString content(evaluateContent(context));
84  const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(QUrl()));
85  nodeBuilder->comment(content);
86 
87  const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument());
88  context->addNodeModel(nm);
89 
90  return nm->root(QXmlNodeModelIndex());
91 }
92 
94 {
95  const QString content(evaluateContent(context));
96  QAbstractXmlReceiver *const receiver = context->outputReceiver();
97 
98  receiver->comment(content);
99 }
100 
102 {
104 }
105 
107 {
108  SequenceType::List result;
110  return result;
111 }
112 
114 {
116 }
117 
120 {
121  return visitor->visit(this);
122 }
123 
virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const
The QXmlNodeModelIndex class identifies a node in an XML node model subclassed from QAbstractXmlNodeM...
virtual void addNodeModel(const QAbstractXmlNodeModel::Ptr &nm)=0
A push interface for the XPath Data Model. Similar to SAX's ContentHandler.
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
CommentConstructor(const Expression::Ptr &operand)
The QUrl class provides a convenient interface for working with URLs.
Definition: qurl.h:61
The QString class provides a Unicode character string.
Definition: qstring.h:83
static const SequenceType::Ptr ZeroOrOneString
void append(const T &t)
Inserts value at the end of the list.
Definition: qlist.h:507
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
void error(const QString &message, const ReportContext::ErrorCode errorCode, const QSourceLocation &sourceLocation)
virtual void evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
virtual SequenceType::Ptr staticType() const
The namespace for the internal API of QtXmlPatterns.
The QLatin1String class provides a thin wrapper around an US-ASCII/Latin-1 encoded string literal...
Definition: qstring.h:654
virtual void comment(const QString &value)=0
static QString formatData(const QString &data)
static const SequenceType::Ptr ExactlyOneComment
virtual Properties properties() const
Contains functions used for formatting arguments, such as keywords and paths, in translated strings...
Represents an item in the XPath 2.0 Data Model.
Definition: qitem_p.h:182
QString evaluateContent(const DynamicContext::Ptr &context) const
virtual SequenceType::List expectedOperandTypes() const
virtual NodeBuilder::Ptr nodeBuilder(const QUrl &baseURI) const =0
The QFlags class provides a type-safe way of storing OR-combinations of enum values.
Definition: qglobal.h:2313
virtual QAbstractXmlReceiver * outputReceiver() const =0
The QLatin1Char class provides an 8-bit ASCII/Latin-1 character.
Definition: qchar.h:55
virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const
The QList class is a template class that provides lists.
Definition: qdatastream.h:62
Base class for expressions that has exactly one operand.
virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const