libregexp-debugger-perl - 0.002007-1 main

Regexp::Debugger is a module that helps tame unruly regexes by
providing live interactive run-time visualizations of any regex in a
Perl code. The debugger allows one to track capture variables, follow
recursive subpattern matches, set break-points within a regex match,
and even step backwards through the matching process to work out
exactly where things started going so horribly wrong.
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When you load this module, any regex in the same lexical scope will be
visually (and interactively) debugged as it matches.
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In addition to the Perl module, the package also contains the
module's commandline frontend rxrx.