summaryrefslogtreecommitdiff
path: root/ext/PerlIO/encoding/encoding.pm
blob: 3eb7dd589f1af1a68425b1b62645595f50f9d3f7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
package PerlIO::encoding;
use strict;
our $VERSION = '0.08';
our $DEBUG = 0;
$DEBUG and warn __PACKAGE__, " called by ", join(", ", caller), "\n";

#
# Equivalent of this is done in encoding.xs - do not uncomment.
#
# use Encode ();

use XSLoader ();
XSLoader::load(__PACKAGE__, $VERSION);

our $fallback = Encode::PERLQQ()|Encode::WARN_ON_ERR();

1;
__END__

=head1 NAME

PerlIO::encoding - encoding layer

=head1 SYNOPSIS

  open($f, "<:encoding(foo)", "infoo");
  open($f, ">:encoding(bar)", "outbar");

  use Encode qw(:fallbacks);
  $PerlIO::encoding::fallback = FB_PERLQQ;

=head1 DESCRIPTION

Open a filehandle with a transparent encoding filter.

On input, convert the bytes expected to be in the specified
character set and encoding to Perl string data (Unicode and
Perl's internal Unicode encoding, UTF-8).  On output, convert
Perl string data into the specified character set and encoding.

When the layer is pushed the current value of C<$PerlIO::encoding::fallback>
is saved and used as the check argument when calling the Encodings
encode and decode.

=head1 SEE ALSO

L<open>, L<Encode>, L<perlfunc/binmode>, L<perluniintro>

=cut