1#@!#!123s

https://www.fcalpha.net/web/photo/20151024/m.txt 1#@!#!123s

: / usr / share / doc / perl-Filter / examples / closure /

Filename : Joe2Jim.pm

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package
  Joe2Jim ;
 
use Filter::Util::Call ;

use strict ;
use warnings ;
 
sub import
{
    my($type) = @_ ;
 
    filter_add(
        sub 
        {
            my($status) ;
            s/Joe/Jim/g
                if ($status = filter_read()) > 0 ;
            $status ;
        })
}

1 ;