By default, this module exports a single hash (`%RE') that stores or generates commonly needed regular expressions. Patterns currently provided include: * balanced parentheses and brackets * delimited text (with escapes) * integers and floating-point numbers in any base (up to 36) * comments in C, C++, Perl, and shell * offensive language * lists of any pattern * IPv4 addresses WWW: http://search.cpan.org/dist/Regexp-Common/