B::Debug - Walk Perl syntax tree, printing debug info about ops

perl -MO=Debug foo.pl
perl -MO=Debug,-exec foo.pl

This program is free software; you can redistribute it and/or modify
	it under the terms of either:

	a) the GNU General Public License as published by the Free
	Software Foundation; either version 1, or (at your option) any
	later version, or

	b) the "Artistic License" which comes with this kit.

       This program is distributed in the hope that it will be useful,
       but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See either
       the GNU General Public License or the Artistic License for more details.

       You should have received a copy of the Artistic License with this kit,
       in the file named "Artistic".  If not, you can get one from the Perl
       distribution. You should also have received a copy of the GNU General
       Public License, in the file named "Copying". If not, you can get one
       from the Perl distribution or else write to the Free Software Foundation,
       Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.