org.antlr.works.visualization.fa

Class FAState

java.lang.Object

org.antlr.works.visualization.fa.FAState

All Implemented Interfaces:

SSerializable

public class FAState
extends Object
implements SSerializable

Class defining an "GUI" FA state. It is basically the same as a NFAState.

Field Summary

Fields

Modifier and Type	Field and Description
boolean	acceptedState
String	enclosingRuleName
String	externalRuleRefName If the state represents a reference to an external state, this field contains the name of the referenced rule.
boolean	loop Temporary variable that is used by FAFactory to know when to build "loop" transition
int	stateNumber
List<FATransition>	transitions

Constructor Summary

Constructors

Constructor and Description
FAState(int stateNumber)
FAState(org.antlr.analysis.NFAState state)
FAState(String externalRuleRefName)

Method Summary

Methods

Modifier and Type	Method and Description
void	addTransition(FATransition transition)
void	addTransition(FATransition transition, boolean loop)
void	encode(SEncoder encoder)
boolean	equals(Object o)
FATransition	getFirstTransition()
FAState	getNextFirstState()
int	getNumberOfTransitions()
FATransition	getTransitionToExternalStateRule(String externalRule) Find the transition whose target contains a transition with a label containing the name of the external rule
FATransition	getTransitionToStateNumber(int stateNumber)
int	hashCode()
boolean	isAlternative() This method returns true if the state is an alternative.
boolean	isSingle() This method returns true if the state is single state (that is with only one non-loop transition)
String	toString()
FATransition	transition(int index)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

stateNumber

public int stateNumber

acceptedState

public boolean acceptedState

enclosingRuleName

public String enclosingRuleName

transitions

public List<FATransition> transitions

externalRuleRefName

public String externalRuleRefName

If the state represents a reference to an external state, this field contains the name of the referenced rule.

loop

public boolean loop

Temporary variable that is used by FAFactory to know when to build "loop" transition

Constructor Detail

FAState

public FAState(int stateNumber)

FAState

public FAState(org.antlr.analysis.NFAState state)

FAState

public FAState(String externalRuleRefName)

Method Detail

addTransition

public void addTransition(FATransition transition)

addTransition

public void addTransition(FATransition transition,
                 boolean loop)

getFirstTransition

public FATransition getFirstTransition()

transition

public FATransition transition(int index)

getNumberOfTransitions

public int getNumberOfTransitions()

getNextFirstState

public FAState getNextFirstState()

getTransitionToStateNumber

public FATransition getTransitionToStateNumber(int stateNumber)

getTransitionToExternalStateRule

public FATransition getTransitionToExternalStateRule(String externalRule)

Find the transition whose target contains a transition with a label containing the name of the external rule

isAlternative

public boolean isAlternative()

This method returns true if the state is an alternative. "loop" transitions are skipped.

isSingle

public boolean isSingle()

This method returns true if the state is single state (that is with only one non-loop transition)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

encode

public void encode(SEncoder encoder)

Specified by:

encode in interface SSerializable