net.sf.saxon.regex

Class Operation.OpBranch

java.lang.Object

net.sf.saxon.regex.Operation

net.sf.saxon.regex.Operation.OpBranch

Enclosing class:

Operation

public static class Operation.OpBranch
extends Operation

Choice (|)

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 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.OpBranch()

Method Summary

Methods

Modifier and Type	Method and Description
int	exec(REMatcher matcher, int node, int idx) Execute the operation
int	nextAction(int idx) Determine the action to take after calling exec()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Operation.OpBranch

public Operation.OpBranch()

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.

nextAction

public int nextAction(int idx)

Description copied from class: Operation

Determine the action to take after calling exec()

Overrides:

nextAction in class Operation

Parameters:

idx - the value returned by exec()

Returns:

one of the values ACTION_RETURN, ACTION_ADVANCE_TO_NEXT, ...

toString

public String toString()

Overrides:

toString in class Object