إقتباس :tregexpr
delphi/kylix/freepascal library

easy to use and powerfull tool for
sophisticated search and substitutioning
and for template-based text checking
(especially usefull for user input
validation in dbms and web projects).

You can validate e-mail adresses, extract
phone numbers or zip-codes from web-pages
or documents, search for complex patterns
in log files and all you can imagine!
Rules (templates) can be changed without
your program recompilation!

As a language for rules used subset of
perl's regular expressions (regexp).