Re^2: Creating (and using) a custom encoding.

OK. Now that I'm thoroughly confused:-):

package Encode::ROT13;

use strict;
use warnings;
use Encode;

use parent qw( Encode::Encoding );

__PACKAGE__->Define( 'rot13' );

no warnings 'redefine';

sub encode($$;$){
  my( $obj, $str, $chk ) = @_;
  $str =~ tr/A-Za-z/N-ZA-Mn-za-m/;
  $_[1] = '' if $chk;
  return $str;
}

*decode = \&encode;

1;


package main;

use strict;
use warnings;

use Encode 'define_encoding';
use File::Slurp;

my $object = {};
bless($object, 'Encode::ROT13');

define_encoding( $object, 'rot13' ); 

my(@words) = read_file( \*DATA, chomp => 1, binmode => ':rot13' );
print "$_\n" for @words;

my(@list) = Encode->encodings();

print "Checking for rot13: \n";
foreach my $list(@list) {
    print "\t$list\n";;
}

__DATA__
Apple
cat
dog
strawberry
watermelon
[download]

Comment on Re^2: Creating (and using) a custom encoding. Download Code

Replies are listed 'Best First'.
Re^3: Creating (and using) a custom encoding. by davido (Cardinal) on May 30, 2013 at 20:56 UTC
I'm guessing that doesn't work for you either. A few nits (even though neither of us have it working yet): Encode doesn't need to be 'used' in package Encode::ROT13 (and eliminating it eliminates the "redefined" warnings). Also, blessing the object into package Encode::ROT13 may as well be written as a constructor in Encode::ROT13, and then called with the traditional `Encode::ROT13->new` syntax from the calling package (main) .... not that it matters -- it still doesn't work. Also, even if you completely eliminate '`use Encode qw/ define_encoding /;` from package main, and eliminate the object construction as well as the call to `define_encoding`, 'rot13' still shows up in the encodings list. However, placing a "warn" inside of Encode::ROT13::encode shows that the function never gets called. What are we missing? :) There really seems to be a disconnect between the POD and reality. But I'm sure it works for someone (who knows how to do it right). Otherwise, the whole Encode::Encoding module is pretty useless. Dave	[reply] [d/l] [select]
Re^4: Creating (and using) a custom encoding. by Khen1950fx (Canon) on May 30, 2013 at 23:37 UTC
Thanks for the clarification.	[reply]


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