| 1 | package Encode::KR::2022_KR; |
| 2 | use strict; |
| 3 | |
| 4 | our $VERSION = do { my @r = (q$Revision: 2.0 $ =~ /\d+/g); sprintf "%d."."%02d" x $#r, @r }; |
| 5 | |
| 6 | use Encode qw(:fallbacks); |
| 7 | |
| 8 | use base qw(Encode::Encoding); |
| 9 | __PACKAGE__->Define('iso-2022-kr'); |
| 10 | |
| 11 | sub needs_lines { 1 } |
| 12 | |
| 13 | sub perlio_ok { |
| 14 | return 0; # for the time being |
| 15 | } |
| 16 | |
| 17 | sub decode |
| 18 | { |
| 19 | my ($obj, $str, $chk) = @_; |
| 20 | my $res = $str; |
| 21 | my $residue = iso_euc(\$res); |
| 22 | # This is for PerlIO |
| 23 | $_[1] = $residue if $chk; |
| 24 | return Encode::decode('euc-kr', $res, FB_PERLQQ); |
| 25 | } |
| 26 | |
| 27 | sub encode |
| 28 | { |
| 29 | my ($obj, $utf8, $chk) = @_; |
| 30 | # empty the input string in the stack so perlio is ok |
| 31 | $_[1] = '' if $chk; |
| 32 | my $octet = Encode::encode('euc-kr', $utf8, FB_PERLQQ) ; |
| 33 | euc_iso(\$octet); |
| 34 | return $octet; |
| 35 | } |
| 36 | |
| 37 | use Encode::CJKConstants qw(:all); |
| 38 | |
| 39 | # ISO<->EUC |
| 40 | |
| 41 | sub iso_euc{ |
| 42 | my $r_str = shift; |
| 43 | $$r_str =~ s/$RE{'2022_KR'}//gox; # remove the designator |
| 44 | $$r_str =~ s{ # replace characters in GL |
| 45 | \x0e # between SO(\x0e) and SI(\x0f) |
| 46 | ([^\x0f]*) # with characters in GR |
| 47 | \x0f |
| 48 | } |
| 49 | { |
| 50 | my $out= $1; |
| 51 | $out =~ tr/\x21-\x7e/\xa1-\xfe/; |
| 52 | $out; |
| 53 | }geox; |
| 54 | my ($residue) = ($$r_str =~ s/(\e.*)$//so); |
| 55 | return $residue; |
| 56 | } |
| 57 | |
| 58 | sub euc_iso{ |
| 59 | no warnings qw(uninitialized); |
| 60 | my $r_str = shift; |
| 61 | substr($$r_str,0,0)=$ESC{'2022_KR'}; # put the designator at the beg. |
| 62 | $$r_str =~ s{ # move KS X 1001 characters in GR to GL |
| 63 | ($RE{EUC_C}+) # and enclose them with SO and SI |
| 64 | }{ |
| 65 | my $str = $1; |
| 66 | $str =~ tr/\xA1-\xFE/\x21-\x7E/; |
| 67 | "\x0e" . $str . "\x0f"; |
| 68 | }geox; |
| 69 | $$r_str; |
| 70 | } |
| 71 | |
| 72 | 1; |
| 73 | __END__ |
| 74 | |
| 75 | =head1 NAME |
| 76 | |
| 77 | Encode::KR::2022_KR -- internally used by Encode::KR |
| 78 | |
| 79 | =cut |