NAME

Devel::Command::Viz - graph data structures under the debugger

SYNOPSIS

  # in .perldb:
  use Devel::Command;
  sub afterinit {
     Devel::Command->install;
  }

  # In the debugger:
  DB<1> my $a = [1, 2, {3=>4}, [5.6]]
  DB<2> viz $a

  # A 'dotty' window pops up, showing the data structure.

DESCRIPTION

Devel::Command::Viz is a debugger extension command plugin for Devel::Command. It uses GraphViz::Data::Structure to visualize a Perl data structure and dotty to display the resultant graph.

ROUTINES

command

Standard Devel::Command wrapper code to parse a debugger command line, render the graph, and display it.

BUGS

None known; it's possible that the resultant graphs may have probelms due to as-yet-uncaught bugs in GraphViz::Data::Structure.

The command will not work if you have no way of running dotty, which requires X Windows to be running.

SEE ALSO

perl5db.pl, Devel::Command, dotty

AUTHOR

Joe McMahon, <mcmahon@cpan.org>

COPYRIGHT AND LICENSE

Copyright (C) 2005 by Joe McMahon

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.6 or, at your option, any later version of Perl 5 you may have available.