RegEx. DLL V0.6.0

RegEx. DLL 0.6.0 Description

" RegEx. DLL : RegEx. DLL provides some much needed regular-expression handling for VB programmers, implementing all the common UNIX wildcard characters allowing sophisticated string comparisons and search-and-replace operations to be performed. . "

EditBy1Editor: RegEx. DLL - RegEx. DLL provides some much needed regular-expression handling for VB programmers. The' clsRegEx' class implements all the common UNIX wildcard characters allowing sophisticated string comparisons and search-and-replace operations to be performed.

* The' *' character represents zero or more occurrences of the previous character in the expression:
ab * c matches ac, abc, abbc, abbbbbbbc...
* The' +' character represents one or more occurrences of the previous character in the expression:
ab + c matches abc, abbc, abbbbbbbc but not ac
* Numbers within curly brackets represent a specific number of occurrences of the previous character:
a { 3 } matches aaa a { 3, 5 } matches aaa, aaaa and aaaaa
* The'?' character represents zero or one occurrences of the previous character:
a? c matches ac and aac
* The'.' character represents any single character:
a. c matches abc, aXc but not ac or abbc

Round brackets can be used to apply multipliers, such as' *' or' +', to groups of characters:

* ( abc ) * matches an empty string, abc, abcabc, abcabcabc...
* ( abc ) + matches abc, abcabc, abcabcabc...

Square brackets can be used to specify possible values for a single character. A hyphen can be used in this context to represent a range of characters. If the first character within the brackets is a' ^' then the range is exclusive rather than inclusive ( ie. the expression matches any single character not shown ):

* a [ bB ] c matches abc and aBc
* a [ ^ 0-9 ] c matches abc and aXc but not a0c... a9c

A' \' symbol negates the special meaning of the following character. Only valid if it precedes one of * +? \ { ( [ ] ) }.

* a \ * c matches a * c
* a [ \ [ \ ] ] c matches a ] c and a [ c
* a \ \ c matches a \ c
* ab \ c is not a valid expression

The download includes VB code samples demonstrating how to use the library.

This library is still in beta test-it works well for short expressions, but due to the recursive nature of the code longer strings can take