edu.washington.cs.knowitall.regex

Class Expression.AssertionExpression<E>

java.lang.Object

edu.washington.cs.knowitall.regex.Expression.AssertionExpression<E>

Type Parameters:

E -

All Implemented Interfaces:

com.google.common.base.Predicate<E>, Expression<E>

Direct Known Subclasses:

Expression.EndAssertion, Expression.StartAssertion

Enclosing interface:

Expression<E>

public abstract static class Expression.AssertionExpression<E>
extends java.lang.Object
implements Expression<E>

A non-consuming expression that matches a token against a property of the text, such as the start or end of a line.

Nested Class Summary

Nested classes/interfaces inherited from interface edu.washington.cs.knowitall.regex.Expression

Expression.AssertionExpression<E>, Expression.BaseExpression<E>, Expression.EndAssertion<E>, Expression.MatchingGroup<E>, Expression.MinMax<E>, Expression.NamedGroup<E>, Expression.NonMatchingGroup<E>, Expression.Option<E>, Expression.Or<E>, Expression.Plus<E>, Expression.Star<E>, Expression.StartAssertion<E>

Constructor Summary

Constructors

Constructor and Description
Expression.AssertionExpression()

Method Summary

Methods

Modifier and Type	Method and Description
abstract boolean	apply(boolean hasStart, java.util.List<E> tokens, int count)
boolean	apply(E entity)
FiniteAutomaton.Automaton<E>	build() Convert the expression into a NFA.
int	minMatchingLength()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.base.Predicate

equals

Constructor Detail

Expression.AssertionExpression

public Expression.AssertionExpression()

Method Detail

apply

public boolean apply(E entity)

Specified by:

apply in interface com.google.common.base.Predicate<E>

apply

public abstract boolean apply(boolean hasStart,
            java.util.List<E> tokens,
            int count)

build

public FiniteAutomaton.Automaton<E> build()

Convert the expression into a NFA.

Specified by:

build in interface Expression<E>

minMatchingLength

public int minMatchingLength()

Specified by:

minMatchingLength in interface Expression<E>