net.sf.saxon.regex

Class Operation.OpBackReference

java.lang.Object

net.sf.saxon.regex.Operation

net.sf.saxon.regex.Operation.OpBackReference

Enclosing class:

Operation

public static class Operation.OpBackReference
extends Operation

Back-reference

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.saxon.regex.Operation

Operation.OpAtom, Operation.OpBackReference, Operation.OpBOL, Operation.OpBranch, Operation.OpCharClass, Operation.OpClose, Operation.OpCloseCluster, Operation.OpConfidentPlus, Operation.OpConfidentStar, Operation.OpContinue, Operation.OpEndProgram, Operation.OpEOL, Operation.OpGoTo, Operation.OpMaybe, Operation.OpNothing, Operation.OpOpen, Operation.OpOpenCluster, Operation.OpPlus, Operation.OpReluctantMaybe, Operation.OpReluctantPlus, Operation.OpReluctantStar, Operation.OpStar

Field Summary

Fields

Modifier and Type	Field and Description
int	groupNr

Fields inherited from class net.sf.saxon.regex.Operation

ACTION_ADVANCE_TO_FOLLOWING, ACTION_ADVANCE_TO_NEXT, ACTION_ADVANCE_TO_NEXT_NEXT, ACTION_RETURN, next

Constructor Summary

Constructors

Constructor and Description
Operation.OpBackReference()

Method Summary

Methods

Modifier and Type	Method and Description
int	exec(REMatcher matcher, int node, int idx) Execute the operation
String	toString()

Methods inherited from class net.sf.saxon.regex.Operation

nextAction

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

groupNr

public int groupNr

Constructor Detail

Operation.OpBackReference

public Operation.OpBackReference()

Method Detail

exec

public int exec(REMatcher matcher,
       int node,
       int idx)

Description copied from class: Operation

Execute the operation

Parameters:

matcher - the REMatcher

node - the program node containing this operation

idx - the current position in the input string

Returns:

>=0: matching succeeded, returns new position in input string. -1: matching failed: return to caller.

toString

public String toString()

Overrides:

toString in class Object