regular expressions
Add regular expressions here.
http://theory.uwinnipeg.ca/localfiles/infofiles/gcc/rx_toc.html
regexPerl (obsolete)local copy: perlre.html
http://www.perldoc.com/perl5.8.0/pod/perlre.html (updated)
für perl, quick&easy!
regexpr (selfhtml > cgi/perl > perl-sprachelemente > reguläre ausdrücke)