NAME
PerlIO::encoding - encoding layer
SYNOPSIS
use
PerlIO::encoding;
open
(
$f
,
"<:encoding(foo)"
,
"infoo"
);
open
(
$f
,
">:encoding(bar)"
,
"outbar"
);
$PerlIO::encoding::fallback
= FB_PERLQQ;
DESCRIPTION
This PerlIO layer opens a filehandle with a transparent encoding filter.
On input, it converts 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, it converts Perl string data into the specified character set and encoding.
When the layer is pushed, the current value of $PerlIO::encoding::fallback
is saved and used as the CHECK argument when calling the Encode methods encode() and decode().