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Jakarta ORO A set of text-processing classes that provide Perl5 compatible regular expressions, AWK-like regular expressions, glob expressions, and utility classes for performing substitutions, splits, filtering filenames, etc. This library is the open source succes
Larger Regular Expressions The purpose of this article is to show a few real-life examples of regular expressions at work.
RegEx Tester Online regular expression tester for preg (Perl) and ereg (POSIX) formats.
RegExplorer A visual regular expression explorer, it allows for writing regular expressions and visually see the matches. Uses the KDE/Qt Libraries for the user interface. [QPL]
RegExpr for VB & VBA Regular expression library for Visual Basic and Visual Basic for Applications.
Regular Expression Library A huge list of contributed regular expressions with a short description of their usage.
Regular Expressions Describes Regular Expressions and compares them to Finite Automatas.
Regular Expressions explained An article by Jan Borsodi that gives an introduction to the world of regular expressions. It explains what regular expressions are and introduces the syntax. Also provides examples with varying complexity and a list of tools which use regular expressions
Regular expressions in Haskell Native Haskell implementation of polymorphic regular expressions. The regexps contains most of the features found in Perl.
Utilizing Regular Expressions This article is a follow-up to an earlier 4Guys article "An Introduction to Regular Expression with VBScript". Regular Expression allows for complex pattern matching and replacing.
Validating Form Input using Regular Expressions Writing form validation code is often the most thankless part of your job. The logic can get quite complex, and often quite messy. This article will show how to use Regular Expressions to simplify your code.
VBScript Regular Expressions Describes the improved text handling functions of version 5 of VBScript through its support for Regular Expressions.
Visual RegExp A graphical explorer for your regular expressions. Requires Tcl/Tk 8.x.
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