1 package Encode::JP::JIS7;
4 our $VERSION = do { my @r = ( q$Revision: 2.4 $ =~ /\d+/g ); sprintf "%d." . "%02d" x $#r, @r };
6 use Encode qw(:fallbacks);
8 for my $name ( '7bit-jis', 'iso-2022-jp', 'iso-2022-jp-1' ) {
9 my $h2z = ( $name eq '7bit-jis' ) ? 0 : 1;
10 my $jis0212 = ( $name eq 'iso-2022-jp' ) ? 0 : 1;
12 $Encode::Encoding{$name} = bless {
19 use base qw(Encode::Encoding);
21 # we override this to 1 so PerlIO works
24 use Encode::CJKConstants qw(:all);
27 # decode is identical for all 2022 variants
31 my ( $obj, $str, $chk ) = @_;
34 $str =~ s/([^\x00-\x7f].*)$//so and $residue = $1;
36 $residue .= jis_euc( \$str );
37 $_[1] = $residue if $chk;
38 return Encode::decode( 'euc-jp', $str, FB_PERLQQ );
46 require Encode::JP::H2Z;
47 my ( $obj, $utf8, $chk ) = @_;
49 # empty the input string in the stack so perlio is ok
51 my ( $h2z, $jis0212 ) = @$obj{qw(h2z jis0212)};
52 my $octet = Encode::encode( 'euc-jp', $utf8, $chk );
53 $h2z and &Encode::JP::H2Z::h2z( \$octet );
54 euc_jis( \$octet, $jis0212 );
61 my $re_scan_jis_g = qr{
62 \G ( ($RE{JIS_0212}) | $RE{JIS_0208} |
63 ($RE{ISO_ASC}) | ($RE{JIS_KANA}) | )
67 sub cat_decode { # ($obj, $dst, $src, $pos, $trm, $chk)
68 my ( $obj, undef, undef, $pos, $trm ) = @_; # currently ignores $chk
69 my ( $rdst, $rsrc, $rpos ) = \@_[ 1, 2, 3 ];
72 my $opos = pos($$rsrc);
74 while ( $$rsrc =~ /$re_scan_jis_g/gc ) {
75 my ( $esc, $esc_0212, $esc_asc, $esc_kana, $chunk ) =
76 ( $1, $2, $3, $4, $5 );
78 unless ($chunk) { $esc or last; next; }
80 if ( $esc && !$esc_asc ) {
81 $chunk =~ tr/\x21-\x7e/\xa1-\xfe/;
83 $chunk =~ s/([\xa1-\xdf])/\x8e$1/og;
86 $chunk =~ s/([\xa1-\xfe][\xa1-\xfe])/\x8f$1/og;
88 $chunk = Encode::decode( 'euc-jp', $chunk, 0 );
90 elsif ( ( my $npos = index( $chunk, $trm ) ) >= 0 ) {
91 $$rdst .= substr( $chunk, 0, $npos + length($trm) );
92 $$rpos += length($esc) + $npos + length($trm);
105 my $re_scan_jis = qr{
106 (?:($RE{JIS_0212})|$RE{JIS_0208}|($RE{ISO_ASC})|($RE{JIS_KANA}))([^\e]*)
112 $$r_str =~ s($re_scan_jis)
114 my ($esc_0212, $esc_asc, $esc_kana, $chunk) =
117 $chunk =~ tr/\x21-\x7e/\xa1-\xfe/;
119 $chunk =~ s/([\xa1-\xdf])/\x8e$1/og;
122 $chunk =~ s/([\xa1-\xfe][\xa1-\xfe])/\x8f$1/og;
127 my ($residue) = ( $$r_str =~ s/(\e.*)$//so );
132 no warnings qw(uninitialized);
137 ((?:$RE{EUC_C})+|(?:$RE{EUC_KANA})+|(?:$RE{EUC_0212})+)
141 ( $chunk =~ tr/\x8E//d ) ? $ESC{KANA} :
142 ( $chunk =~ tr/\x8F//d ) ? $ESC{JIS_0212} :
144 if ($esc eq $ESC{JIS_0212} && !$jis0212){
146 $chunk =~ tr/\xA1-\xFE/\x3F/;
148 $chunk =~ tr/\xA1-\xFE/\x21-\x7E/;
150 $esc . $chunk . $ESC{ASC};
152 $$r_str =~ s/\Q$ESC{ASC}\E
153 (\Q$ESC{KANA}\E|\Q$ESC{JIS_0212}\E|\Q$ESC{JIS_0208}\E)/$1/gox;
163 Encode::JP::JIS7 -- internally used by Encode::JP