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- package Encode::KR::2022_KR;
- use strict;
- use warnings;
- our $VERSION = do { my @r = ( q$Revision: 2.2 $ =~ /\d+/g ); sprintf "%d." . "%02d" x $#r, @r };
-
- use Encode qw(:fallbacks);
-
- use base 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 ) = @_;
- 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 ) = @_;
-
- # 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
-