84 lines
1.9 KiB
Perl
84 lines
1.9 KiB
Perl
package Encode::KR::2022_KR;
|
|
use strict;
|
|
use warnings;
|
|
our $VERSION = do { my @r = ( q$Revision: 2.4 $ =~ /\d+/g ); sprintf "%d." . "%02d" x $#r, @r };
|
|
|
|
use Encode qw(:fallbacks);
|
|
|
|
use parent qw(Encode::Encoding);
|
|
__PACKAGE__->Define('iso-2022-kr');
|
|
|
|
sub needs_lines { 1 }
|
|
|
|
sub perlio_ok {
|
|
return 0; # for the time being
|
|
}
|
|
|
|
sub decode {
|
|
my ( $obj, $str, $chk ) = @_;
|
|
return undef unless defined $str;
|
|
my $res = $str;
|
|
my $residue = iso_euc( \$res );
|
|
|
|
# This is for PerlIO
|
|
$_[1] = $residue if $chk;
|
|
return Encode::decode( 'euc-kr', $res, FB_PERLQQ );
|
|
}
|
|
|
|
sub encode {
|
|
my ( $obj, $utf8, $chk ) = @_;
|
|
return undef unless defined $utf8;
|
|
|
|
# empty the input string in the stack so perlio is ok
|
|
$_[1] = '' if $chk;
|
|
my $octet = Encode::encode( 'euc-kr', $utf8, FB_PERLQQ );
|
|
euc_iso( \$octet );
|
|
return $octet;
|
|
}
|
|
|
|
use Encode::CJKConstants qw(:all);
|
|
|
|
# ISO<->EUC
|
|
|
|
sub iso_euc {
|
|
my $r_str = shift;
|
|
$$r_str =~ s/$RE{'2022_KR'}//gox; # remove the designator
|
|
$$r_str =~ s{ # replace characters in GL
|
|
\x0e # between SO(\x0e) and SI(\x0f)
|
|
([^\x0f]*) # with characters in GR
|
|
\x0f
|
|
}
|
|
{
|
|
my $out= $1;
|
|
$out =~ tr/\x21-\x7e/\xa1-\xfe/;
|
|
$out;
|
|
}geox;
|
|
my ($residue) = ( $$r_str =~ s/(\e.*)$//so );
|
|
return $residue;
|
|
}
|
|
|
|
sub euc_iso {
|
|
no warnings qw(uninitialized);
|
|
my $r_str = shift;
|
|
substr( $$r_str, 0, 0 ) =
|
|
$ESC{'2022_KR'}; # put the designator at the beg.
|
|
$$r_str =~
|
|
s{ # move KS X 1001 characters in GR to GL
|
|
($RE{EUC_C}+) # and enclose them with SO and SI
|
|
}{
|
|
my $str = $1;
|
|
$str =~ tr/\xA1-\xFE/\x21-\x7E/;
|
|
"\x0e" . $str . "\x0f";
|
|
}geox;
|
|
$$r_str;
|
|
}
|
|
|
|
1;
|
|
__END__
|
|
|
|
=head1 NAME
|
|
|
|
Encode::KR::2022_KR -- internally used by Encode::KR
|
|
|
|
=cut
|