NAME

Perl::Critic::Policy::ControlStructures::ProhibitCascadingIfElse

DESCRIPTION

Long if-elsif chains are hard to digest, especially if they are longer than a single page or screen. If testing for equality, use a hash-lookup instead. See Switch for another approach.

  if ($condition1) {         #ok
      $foo = 1;
  }
  elseif ($condition2) {     #ok
      $foo = 2;
  }
  elsif ($condition3) {      #ok
      $foo = 3;
  }
  elsif ($condition4) {      #too many!
      $foo = 4;
  }
  else{                      #ok
      $foo = $default;
  }

CONSTRUCTOR

This policy accepts an additional key-value pair in the new method. The key should be 'max_elsif' and the value should be an integer indicating the maximum number of elsif alternatives to allow. The default is 2. When using the Perl::Critic engine, these can be configured in the .perlcriticrc file like this:

 [ControlStructures::ProhibitCascadingIfElse]
 max_elsif = 3

AUTHOR

Jeffrey Ryan Thalhammer <thaljef@cpan.org>

COPYRIGHT

Copyright (c) 2005-2006 Jeffrey Ryan Thalhammer. All rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module.