pobs.control
Class PShortestAlternative

java.lang.Object
  pobs.control.PShortestAlternative

All Implemented Interfaces:

PControl

public class PShortestAlternative

extends java.lang.Object

implements PControl

Sets the alternatives directive to shortest mode, this will return the shortest of all matching alternatives in encountered in parsers like POr and PTokens.

Author:

Martijn W. van der Lee, Franz-Josef Elmer

Constructor Summary

PShortestAlternative()

Method Summary

java.lang.Object	modifyState(PDirective directive) Modifies a sub state of the specified directive.
void	reestablishPreviousState(PDirective directive, java.lang.Object previousState) Reestablishes the previous state before modification.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PShortestAlternative

public PShortestAlternative()

Method Detail

modifyState

public java.lang.Object modifyState(PDirective directive)

Description copied from interface: PControl

Modifies a sub state of the specified directive.

Specified by:

modifyState in interface PControl

Parameters:

directive - Directive to be modified.

Returns:

sub state before modification which allows reestablishing the previous state.

reestablishPreviousState

public void reestablishPreviousState(PDirective directive,
                                     java.lang.Object previousState)

Description copied from interface: PControl

Reestablishes the previous state before modification.

Specified by:

reestablishPreviousState in interface PControl

Parameters:

directive - Directive which has been modified.

previousState - Previous state as returned by PControl.modifyState(PDirective).