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