jidefx.utils

Interface WildcardSupport

All Superinterfaces:

java.io.Serializable

public interface WildcardSupport
extends java.io.Serializable

An interface to support the wildcard. All methods in this interface have the default implementations. It uses the following three chars as the wildcards.

• '?' The question mark indicates there is exact one of missing element. For example, colo?r matches "colour" but not "color" or "colouur".
• '*' The asterisk indicates there are zero or more of the missing elements. For example, ab*c matches "abc", "abbc", "abdbc", and so on.
• '+' The plus sign indicates there are at least one of the missing elements. For example, ab+c matches "abbc", "abdbc", but not "abc".

Method Summary

Modifier and Type	Method and Description
default java.lang.String	convert(java.lang.String s) Converts a string with wildcards to a regular express that is compatible with <code>Pattern</code>.
default char	getOneOrMoreQuantifier() Gets the quantifier that indicates there is one or more of the preceding element.
default char	getZeroOrMoreQuantifier() Gets the quantifier that indicates there is zero or more of the preceding element.
default char	getZeroOrOneQuantifier() Gets the quantifier that indicates there is zero or one of the preceding element.

Method Detail

getZeroOrOneQuantifier

default char getZeroOrOneQuantifier()

Gets the quantifier that indicates there is zero or one of the preceding element. Usually '?', the question mark is used for this quantifier. For example, colou?r matches both "color" and "colour".

Returns:

the quantifier that indicates there is zero or one of the preceding element.

getZeroOrMoreQuantifier

default char getZeroOrMoreQuantifier()

Gets the quantifier that indicates there is zero or more of the preceding element. Usually '*', the asterisk is used for this quantifier. For example, ab*c matches "ac", "abc", "abbc", "abbbc", and so on.

Returns:

the quantifier that indicates there is zero or more of the preceding element.

getOneOrMoreQuantifier

default char getOneOrMoreQuantifier()

Gets the quantifier that indicates there is one or more of the preceding element. Usually '+', the plus sign is used for this quantifier. For example, ab+c matches "abc", "abbc", "abbbc", and so on, but not "ac".

Returns:

the quantifier that indicates there is one or more of the preceding element.

convert

default java.lang.String convert(java.lang.String s)

Converts a string with wildcards to a regular express that is compatible with <code>Pattern</code>. If the string has no wildcard, the same string will be returned.

Parameters:

s - a string with wildcards.

Returns:

a regular express that is compatible with <code>Pattern</code>.