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java.lang.Object net.sf.saxon.expr.Expression net.sf.saxon.expr.instruct.Instruction net.sf.saxon.expr.instruct.ProcessRegexMatchInstruction
public class ProcessRegexMatchInstruction
An internal instruction used by the fn:analyze-string function to process a matching substring. The instruction generates the content of the fn:match output element, by generating startElement and endElement events at the start and end of a group.
Field Summary |
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Fields inherited from class net.sf.saxon.expr.Expression |
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EFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, WATCH_METHOD |
Constructor Summary | |
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ProcessRegexMatchInstruction(NamePool namePool)
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Method Summary | |
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Expression |
copy()
Copy an expression. |
void |
explain(ExpressionPresenter out)
Diagnostic print of expression structure. |
int |
getIntrinsicDependencies()
Determine the intrinsic dependencies of an expression, that is, those which are not derived from the dependencies of its subexpressions. |
TailCall |
processLeavingTail(XPathContext context)
ProcessLeavingTail: called to do the real work of this instruction. |
Expression |
simplify(ExpressionVisitor visitor)
Simplify an expression. |
Methods inherited from class net.sf.saxon.expr.instruct.Instruction |
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assembleParams, assembleTunnelParams, computeCardinality, computeSpecialProperties, createsNewNodes, dynamicError, evaluateAsString, evaluateItem, getConstructType, getExpressionName, getImplementationMethod, getInstructionName, getInstructionNameCode, getItemType, getIteratorFromProcessMethod, getSourceLocator, isXSLT, iterate, process, promote, promoteInst |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface javax.xml.transform.SourceLocator |
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getColumnNumber, getLineNumber, getPublicId, getSystemId |
Constructor Detail |
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public ProcessRegexMatchInstruction(NamePool namePool)
Method Detail |
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public int getIntrinsicDependencies()
Expression
getIntrinsicDependencies
in class Expression
public TailCall processLeavingTail(XPathContext context) throws XPathException
Instruction
processLeavingTail
in interface TailCallReturner
processLeavingTail
in class Instruction
context
- The dynamic context of the transformation, giving access to the current node,
the current variables, etc.
XPathException
- if a dynamic error occurs during the evaluation
of the instructionpublic Expression simplify(ExpressionVisitor visitor) throws XPathException
Instruction
simplify
in class Instruction
visitor
- an expression visitor
XPathException
- if an error is discovered during expression
rewritingpublic Expression copy()
Expression
copy
in class Expression
public void explain(ExpressionPresenter out)
Expression
explain
in class Expression
out
- the expression presenter used to display the structure
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