public TemplateMatch(Template template, QilLoop filter)
{
_template = template;
_priority = double.IsNaN(template.Priority) ? XPathPatternBuilder.GetPriority(filter) : template.Priority;
_iterator = filter.Variable;
_condition = filter.Body;
XPathPatternBuilder.CleanAnnotation(filter);
NipOffTypeNameCheck();
Debug.Assert(
_qname == null ||
_nodeKind == XmlNodeKindFlags.Element || _nodeKind == XmlNodeKindFlags.Attribute || _nodeKind == XmlNodeKindFlags.PI,
"qname may be not null only for element, attribute, or PI patterns"
);
}
/*
* StepPattern ::= ChildOrAttributeAxisSpecifier NodeTest Predicate*
* ChildOrAttributeAxisSpecifier ::= @ ? | ('child' | 'attribute') '::'
*/
private QilNode ParseStepPattern()
{
QilNode opnd;
XPathAxis axis;
switch (_scanner.Kind)
{
case LexKind.Dot:
case LexKind.DotDot:
throw _scanner.CreateException(SR.XPath_InvalidAxisInPattern);
case LexKind.At:
axis = XPathAxis.Attribute;
_scanner.NextLex();
break;
case LexKind.Axis:
axis = _scanner.Axis;
if (axis != XPathAxis.Child && axis != XPathAxis.Attribute)
{
throw _scanner.CreateException(SR.XPath_InvalidAxisInPattern);
}
_scanner.NextLex(); // Skip '::'
_scanner.NextLex();
break;
case LexKind.Name:
case LexKind.Star:
// NodeTest must start with Name or '*'
axis = XPathAxis.Child;
break;
default:
throw _scanner.CreateException(SR.XPath_UnexpectedToken, _scanner.RawValue);
}
XPathNodeType nodeType;
string nodePrefix, nodeName;
XPathParser.InternalParseNodeTest(_scanner, axis, out nodeType, out nodePrefix, out nodeName);
opnd = _ptrnBuilder.Axis(axis, nodeType, nodePrefix, nodeName);
XPathPatternBuilder xpathPatternBuilder = _ptrnBuilder as XPathPatternBuilder;
if (xpathPatternBuilder != null)
{
//for XPathPatternBuilder, get all predicates and then build them
List <QilNode> predicates = new List <QilNode>();
while (_scanner.Kind == LexKind.LBracket)
{
predicates.Add(ParsePredicate(opnd));
}
if (predicates.Count > 0)
{
opnd = xpathPatternBuilder.BuildPredicates(opnd, predicates);
}
}
else
{
while (_scanner.Kind == LexKind.LBracket)
{
opnd = _ptrnBuilder.Predicate(opnd, ParsePredicate(opnd), /*reverseStep:*/ false);
}
}
return(opnd);
}
private QilGenerator(bool debug)
{
_scope = new CompilerScopeManager<QilIterator>();
_outputScope = new OutputScopeManager();
_prefixesInUse = new HybridDictionary();
_f = new XsltQilFactory(new QilFactory(), debug);
_xpathBuilder = new XPathBuilder((IXPathEnvironment)this);
_xpathParser = new XPathParser<QilNode>();
_ptrnBuilder = new XPathPatternBuilder((IXPathEnvironment)this);
_ptrnParser = new XPathPatternParser();
_refReplacer = new ReferenceReplacer(_f.BaseFactory);
_invkGen = new InvokeGenerator(_f, debug);
_matcherBuilder = new MatcherBuilder(_f, _refReplacer, _invkGen);
_singlFocus = new SingletonFocus(_f);
_funcFocus = new FunctionFocus();
_curLoop = new LoopFocus(_f);
_strConcat = new QilStrConcatenator(_f);
_varHelper = new VariableHelper(_f);
_elementOrDocumentType = T.DocumentOrElement;
_textOrAttributeType = T.NodeChoice(XmlNodeKindFlags.Text | XmlNodeKindFlags.Attribute);
_nameCurrent = _f.QName("current", XmlReservedNs.NsXslDebug);
_namePosition = _f.QName("position", XmlReservedNs.NsXslDebug);
_nameLast = _f.QName("last", XmlReservedNs.NsXslDebug);
_nameNamespaces = _f.QName("namespaces", XmlReservedNs.NsXslDebug);
_nameInit = _f.QName("init", XmlReservedNs.NsXslDebug);
_formatterCnt = 0;
}
