org.projog.core.predicate.builtin.classify

Class CharType

java.lang.Object

org.projog.core.predicate.AbstractPredicateFactory

org.projog.core.predicate.builtin.classify.CharType

All Implemented Interfaces:

KnowledgeBaseConsumer, PredicateFactory

public final class CharType
extends AbstractPredicateFactory

char_type(X,Y) - classifies characters.

Succeeds if the character represented by X is a member of the character type represented by Y. Supported character types are:

• digit
• upper - upper case letter
• lower - lower case letter
• alpha - letter (upper or lower)
• alnum - letter (upper or lower) or digit
• white - whitespace

Constructor Summary

Constructors

Constructor and Description
CharType()

Method Summary

Modifier and Type	Method and Description
protected Predicate	getPredicate(Term character, Term type)

Methods inherited from class org.projog.core.predicate.AbstractPredicateFactory

getArithmeticOperators, getFileHandles, getKnowledgeBase, getOperands, getPredicate, getPredicate, getPredicate, getPredicate, getPredicate, getPredicates, getProjogListeners, getSpyPoints, getTermFormatter, init, isRetryable, setKnowledgeBase

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.projog.core.predicate.PredicateFactory

isAlwaysCutOnBacktrack

Constructor Detail

CharType

public CharType()

Method Detail

getPredicate

protected Predicate getPredicate(Term character,
                                 Term type)

Overrides:

getPredicate in class AbstractPredicateFactory