jpaul.RegExps
Class RegExp.None<A>

java.lang.Object
  jpaul.RegExps.RegExp<A>
      jpaul.RegExps.RegExp.None<A>

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

Enclosing class:

RegExp<A>

public static class RegExp.None<A>
extends RegExp<A>

Regular expression that does not match any string. Note that None is different from EmptyStr: EmptyStr matches the empty string.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class jpaul.RegExps.RegExp

RegExp.Atomic<A>, RegExp.Concat<A>, RegExp.EmptyStr<A>, RegExp.None<A>, RegExp.Star<A>, RegExp.Union<A>, RegExp.Visitor<A,Res>

Constructor Summary

RegExp.None()

Method Summary

protected int	_hashCode() Does the real work behing hashCode.
<Res> Res	accept(RegExp.Visitor<A,Res> visitor) Method for the visitor pattern.
boolean	equals(java.lang.Object o)
java.lang.String	toString()

Methods inherited from class jpaul.RegExps.RegExp

buildConcat, buildUnion, hashCode, simplify

Methods inherited from class java.lang.Object

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

Constructor Detail

RegExp.None

public RegExp.None()

Method Detail

accept

public <Res> Res accept(RegExp.Visitor<A,Res> visitor)

Description copied from class: RegExp

Method for the visitor pattern. This method will dynamically select and execute the visit method of the visitor that corresponds to the dynamic type of the regular expression. E.g., in the case of a regular expression that is a RegExp.Concat object, accept executes the code of visit(RegExp.Concat).

Overrides:

accept in class RegExp<A>

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

_hashCode

protected int _hashCode()

Description copied from class: RegExp

Does the real work behing hashCode.

Specified by:

_hashCode in class RegExp<A>

See Also:

RegExp.hashCode()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object