com.stevesoft.pat
Class Validator

java.lang.Object
  |
  +--com.stevesoft.pat.Validator

public class Validator

extends java.lang.Object

This class makes it easy to create your own patterns and integrate them into Regex. For more detail, see the example file deriv2.java or deriv3.java.

Constructor Summary

Validator()

Method Summary

Validator	arg(java.lang.String s)
patInt	maxChars() For optimization it is helpful, but not necessary, that you define the maximum number of characters this validator will allow to match.
patInt	minChars() For optimization it is helpful, but not necessary, that you define the minimum number of characters this validator will allow to match.
int	validate(StringLike src, int start, int end) This method does extra checking on a matched section of a String beginning at position start and ending at end.

Methods inherited from class java.lang.Object

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

Constructor Detail

Validator

public Validator()

Method Detail

validate

public int validate(StringLike src,
                    int start,
                    int end)

This method does extra checking on a matched section of a String beginning at position start and ending at end. The idea is that you can do extra checking with this that you don't know how to do with a standard Regex. If this method is successful, it returns the location of the end of this pattern element -- that may be the value end provided or some other value. A negative value signifies that a match failure. By default, this method just returns end and thus does nothing.

See Also:

Regex.define(java.lang.String,java.lang.String,com.stevesoft.pat.Validator)

arg

public Validator arg(java.lang.String s)

minChars

public patInt minChars()

For optimization it is helpful, but not necessary, that you define the minimum number of characters this validator will allow to match. To do this return new patInt(number) where number is the smallest number of characters that can match.

maxChars

public patInt maxChars()

For optimization it is helpful, but not necessary, that you define the maximum number of characters this validator will allow to match. To do this either return new patInt(number), or new patInf() if an infinite number of characters may match.