src/xmlpatterns/functions/qelementavailablefn.cpp

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  41
  42 #include "qqnameconstructor_p.h"
  43
  44 #include "qelementavailablefn_p.h"
  45
  46 QT_BEGIN_NAMESPACE
  47
  48 using namespace QPatternist;
  49
  50 ElementAvailableFN::ElementAvailableFN() : m_xsltInstructions(allXSLTInstructions())
  51 {
  52 }
  53
  54 QSet<QString> ElementAvailableFN::allXSLTInstructions()
  55 {
  56     enum
  57     {
  58         StringSetSize = 27
  59     };
  60
  61     QSet<QString> retval;
  62     retval.reserve(StringSetSize);
  63
  64     /* Alphabetically. */
  65     retval.insert(QLatin1String("analyze-string"));
  66     retval.insert(QLatin1String("apply-imports"));
  67     retval.insert(QLatin1String("apply-templates"));
  68     retval.insert(QLatin1String("attribute"));
  69     retval.insert(QLatin1String("attribute-set"));
  70     retval.insert(QLatin1String("call-template"));
  71     retval.insert(QLatin1String("character-map"));
  72     retval.insert(QLatin1String("choose"));
  73     retval.insert(QLatin1String("comment"));
  74     retval.insert(QLatin1String("copy"));
  75     retval.insert(QLatin1String("copy-of"));
  76     retval.insert(QLatin1String("document"));
  77     retval.insert(QLatin1String("element"));
  78     retval.insert(QLatin1String("fallback"));
  79     retval.insert(QLatin1String("for-each"));
  80     retval.insert(QLatin1String("for-each-group"));
  81     retval.insert(QLatin1String("if"));
  82     retval.insert(QLatin1String("message"));
  83     retval.insert(QLatin1String("namespace"));
  84     retval.insert(QLatin1String("next-match"));
  85     retval.insert(QLatin1String("number"));
  86     retval.insert(QLatin1String("perform-sort"));
  87     retval.insert(QLatin1String("processing-instruction"));
  88     retval.insert(QLatin1String("result-document"));
  89     retval.insert(QLatin1String("sequence"));
  90     retval.insert(QLatin1String("text"));
  91     retval.insert(QLatin1String("variable"));
  92
  93     Q_ASSERT(retval.count() == StringSetSize);
  94     return retval;
  95 }
  96
  97 bool ElementAvailableFN::evaluateEBV(const DynamicContext::Ptr &context) const
  98 {
  99     const Item arg(m_operands.first()->evaluateSingleton(context));
 100     const QString stringName(arg.stringValue());
 101
 102     const QXmlName elementName(QNameConstructor::expandQName<DynamicContext::Ptr,
 103                                                              ReportContext::XTDE1440,
 104                                                              ReportContext::XTDE1440>(stringName,
 105                                                                                       context,
 106                                                                                       staticNamespaces(),
 107                                                                                       this,
 108                                                                                       false));
 109
 110     if(elementName.namespaceURI() != StandardNamespaces::xslt)
 111         return false;
 112
 113     QString prefix;
 114     QString localName;
 115     XPathHelper::splitQName(stringName, prefix, localName);
 116
 117     return m_xsltInstructions.contains(localName);
 118 }
 119
 120 QT_END_NAMESPACE