Perl 5 and 6 regular expressions on IBM developerWorks.
"Perl 6 is finally coming within reach. In this article, Ted gives you a tour of the grammars and regular expressions of the Perl 6 language, comparing them with the currently available Parse::RecDescent module for Perl 5. Find out what will be new with Perl 6 regular expressions and how to make use of the new, powerful incarnation of the Perl scripting language.
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