NAME

       HTML::FormFu::Filter::Callback - filter with custom subroutine

SYNOPSIS

           $field->filter({
               type     => 'Callback',
               callback => \&my_filter,
           });

           ---
           elements:
             - type: Text
               name: foo
               filters:
                 - type: Callback
                   callback: "main::my_filter"

           sub my_filter {
               my ($value) = @_;

               # do something to $value

               return $value;
           }

DESCRIPTION

       Filter using a user-provided subroutine.

METHODS

   callback
       Arguments: \&code-reference

       Arguments: "subroutine-name"

AUTHOR

       Carl Franks, "cfranks@cpan.org"

       Based on the original source code of HTML::Widget::Filter::Callback, by Lyo Kato,
       "lyo.kato@gmail.com"

LICENSE

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