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Pod::Simple::Debug

Perl 5 version 10.1 documentation
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Pod::Simple::Debug

NAME

Pod::Simple::Debug -- put Pod::Simple into trace/debug mode

SYNOPSIS

  1. use Pod::Simple::Debug (5); # or some integer

Or:

  1. my $debuglevel;
  2. use Pod::Simple::Debug (\$debuglevel, 0);
  3. ...some stuff that uses Pod::Simple to do stuff, but which
  4. you don't want debug output from...
  5. $debug_level = 4;
  6. ...some stuff that uses Pod::Simple to do stuff, but which
  7. you DO want debug output from...
  8. $debug_level = 0;

DESCRIPTION

This is an internal module for controlling the debug level (a.k.a. trace level) of Pod::Simple. This is of interest only to Pod::Simple developers.

CAVEATS

Note that you should load this module before loading Pod::Simple (or any Pod::Simple-based class). If you try loading Pod::Simple::Debug after &Pod::Simple::DEBUG is already defined, Pod::Simple::Debug will throw a fatal error to the effect that "it's s too late to call Pod::Simple::Debug".

Note that the use Pod::Simple::Debug (\$x, somenum) mode will make Pod::Simple (et al) run rather slower, since &Pod::Simple::DEBUG won't be a constant sub anymore, and so Pod::Simple (et al) won't compile with constant-folding.

GUTS

Doing this:

  1. use Pod::Simple::Debug (5); # or some integer

is basically equivalent to:

  1. BEGIN { sub Pod::Simple::DEBUG () {5} } # or some integer
  2. use Pod::Simple ();

And this:

  1. use Pod::Simple::Debug (\$debug_level,0); # or some integer

is basically equivalent to this:

  1. my $debug_level;
  2. BEGIN { $debug_level = 0 }
  3. BEGIN { sub Pod::Simple::DEBUG () { $debug_level }
  4. use Pod::Simple ();

SEE ALSO

Pod::Simple

The article "Constants in Perl", in The Perl Journal issue 21. See http://www.sysadminmag.com/tpj/issues/vol5_5/

COPYRIGHT AND DISCLAIMERS

Copyright (c) 2002 Sean M. Burke. All rights reserved.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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.

AUTHOR

Sean M. Burke sburke@cpan.org