1 files changed, 165 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/Encode/JP/JIS7.pm b/Master/tlpkg/tlperl/lib/Encode/JP/JIS7.pm
new file mode 100644
index 00000000000..3b5699c7fd0
--- /dev/null
+++ b/Master/tlpkg/tlperl/lib/Encode/JP/JIS7.pm
@@ -0,0 +1,165 @@
+package Encode::JP::JIS7;
+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);
+
+for my $name ( '7bit-jis', 'iso-2022-jp', 'iso-2022-jp-1' ) {
+    my $h2z     = ( $name eq '7bit-jis' )    ? 0 : 1;
+    my $jis0212 = ( $name eq 'iso-2022-jp' ) ? 0 : 1;
+
+    $Encode::Encoding{$name} = bless {
+        Name    => $name,
+        h2z     => $h2z,
+        jis0212 => $jis0212,
+    } => __PACKAGE__;
+}
+
+use base qw(Encode::Encoding);
+
+# we override this to 1 so PerlIO works
+sub needs_lines { 1 }
+
+use Encode::CJKConstants qw(:all);
+
+#
+# decode is identical for all 2022 variants
+#
+
+sub decode($$;$) {
+    my ( $obj, $str, $chk ) = @_;
+    my $residue = '';
+    if ($chk) {
+        $str =~ s/([^\x00-\x7f].*)$//so and $residue = $1;
+    }
+    $residue .= jis_euc( \$str );
+    $_[1] = $residue if $chk;
+    return Encode::decode( 'euc-jp', $str, FB_PERLQQ );
+}
+
+#
+# encode is different
+#
+
+sub encode($$;$) {
+    require Encode::JP::H2Z;
+    my ( $obj, $utf8, $chk ) = @_;
+
+    # empty the input string in the stack so perlio is ok
+    $_[1] = '' if $chk;
+    my ( $h2z, $jis0212 ) = @$obj{qw(h2z jis0212)};
+    my $octet = Encode::encode( 'euc-jp', $utf8, $chk );
+    $h2z and &Encode::JP::H2Z::h2z( \$octet );
+    euc_jis( \$octet, $jis0212 );
+    return $octet;
+}
+
+#
+# cat_decode
+#
+my $re_scan_jis_g = qr{
+   \G ( ($RE{JIS_0212}) |  $RE{JIS_0208}  |
+        ($RE{ISO_ASC})  | ($RE{JIS_KANA}) | )
+      ([^\e]*)
+}x;
+
+sub cat_decode {    # ($obj, $dst, $src, $pos, $trm, $chk)
+    my ( $obj, undef, undef, $pos, $trm ) = @_;    # currently ignores $chk
+    my ( $rdst, $rsrc, $rpos ) = \@_[ 1, 2, 3 ];
+    local ${^ENCODING};
+    use bytes;
+    my $opos = pos($$rsrc);
+    pos($$rsrc) = $pos;
+    while ( $$rsrc =~ /$re_scan_jis_g/gc ) {
+        my ( $esc, $esc_0212, $esc_asc, $esc_kana, $chunk ) =
+          ( $1, $2, $3, $4, $5 );
+
+        unless ($chunk) { $esc or last; next; }
+
+        if ( $esc && !$esc_asc ) {
+            $chunk =~ tr/\x21-\x7e/\xa1-\xfe/;
+            if ($esc_kana) {
+                $chunk =~ s/([\xa1-\xdf])/\x8e$1/og;
+            }
+            elsif ($esc_0212) {
+                $chunk =~ s/([\xa1-\xfe][\xa1-\xfe])/\x8f$1/og;
+            }
+            $chunk = Encode::decode( 'euc-jp', $chunk, 0 );
+        }
+        elsif ( ( my $npos = index( $chunk, $trm ) ) >= 0 ) {
+            $$rdst .= substr( $chunk, 0, $npos + length($trm) );
+            $$rpos += length($esc) + $npos + length($trm);
+            pos($$rsrc) = $opos;
+            return 1;
+        }
+        $$rdst .= $chunk;
+        $$rpos = pos($$rsrc);
+    }
+    $$rpos = pos($$rsrc);
+    pos($$rsrc) = $opos;
+    return '';
+}
+
+# JIS<->EUC
+my $re_scan_jis = qr{
+   (?:($RE{JIS_0212})|$RE{JIS_0208}|($RE{ISO_ASC})|($RE{JIS_KANA}))([^\e]*)
+}x;
+
+sub jis_euc {
+    local ${^ENCODING};
+    my $r_str = shift;
+    $$r_str =~ s($re_scan_jis)
+    {
+    my ($esc_0212, $esc_asc, $esc_kana, $chunk) =
+       ($1, $2, $3, $4);
+    if (!$esc_asc) {
+        $chunk =~ tr/\x21-\x7e/\xa1-\xfe/;
+        if ($esc_kana) {
+        $chunk =~ s/([\xa1-\xdf])/\x8e$1/og;
+        }
+        elsif ($esc_0212) {
+        $chunk =~ s/([\xa1-\xfe][\xa1-\xfe])/\x8f$1/og;
+        }
+    }
+    $chunk;
+    }geox;
+    my ($residue) = ( $$r_str =~ s/(\e.*)$//so );
+    return $residue;
+}
+
+sub euc_jis {
+    no warnings qw(uninitialized);
+    local ${^ENCODING};
+    my $r_str   = shift;
+    my $jis0212 = shift;
+    $$r_str =~ s{
+    ((?:$RE{EUC_C})+|(?:$RE{EUC_KANA})+|(?:$RE{EUC_0212})+)
+    }{
+        my $chunk = $1;
+        my $esc =
+        ( $chunk =~ tr/\x8E//d ) ? $ESC{KANA} :
+            ( $chunk =~ tr/\x8F//d ) ? $ESC{JIS_0212} :
+            $ESC{JIS_0208};
+        if ($esc eq $ESC{JIS_0212} && !$jis0212){
+        # fallback to '?'
+        $chunk =~ tr/\xA1-\xFE/\x3F/;
+        }else{
+        $chunk =~ tr/\xA1-\xFE/\x21-\x7E/;
+        }
+        $esc . $chunk . $ESC{ASC};
+    }geox;
+    $$r_str =~ s/\Q$ESC{ASC}\E
+        (\Q$ESC{KANA}\E|\Q$ESC{JIS_0212}\E|\Q$ESC{JIS_0208}\E)/$1/gox;
+    $$r_str;
+}
+
+1;
+__END__
+
+
+=head1 NAME
+
+Encode::JP::JIS7 -- internally used by Encode::JP
+
+=cut