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wakaba |
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require 5.8.0; |
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package Encode::ISO2022::CP932; |
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use strict; |
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use vars qw(%DEFAULT $VERSION); |
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$VERSION=do{my @r=(q$Revision: 1.1 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r}; |
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use base qw(Encode::Encoding); |
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__PACKAGE__->Define (qw/x-iso2022jp-cp932/); |
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sub encode ($$;$) { |
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my ($obj, $str, $chk) = @_; |
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$_[1] = '' if $chk; |
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## TODO: implement this! |
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$str = Encode::encode ('iso-2022-jp', $str); ## temporary |
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return $str; |
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} |
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sub decode ($$;$) { |
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my ($obj, $str, $chk) = @_; |
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$_[1] = '' if $chk; |
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_jis7_to_sjis (\$str); |
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return Encode::decode ('cp932', $str); |
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} |
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my %_L2S; |
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sub _jis7_to_sjis (\$) { |
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my $s = shift; |
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$$s =~ s( |
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(\x1B\x24\x28?[\x40\x42]|\x1B\x28[BHIJ]) |
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([^\x00-\x20]*) |
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){ |
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my ($esc, $str) = ($1, $2); |
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if ($esc =~ /\x1B\x28I/o) { |
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$str =~ tr/\x21-\x7E/\xA1-\xDF???????????????????????????????/; |
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} elsif ($esc !~ /\x1B\x28/o) { |
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$str =~ s{ ([\x21-\xFF][\x21-\x7E]) }{ |
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my $s = $1; |
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unless ($_L2S{$s}){ |
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my ($c1, $c2) = unpack 'CC', $s; |
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$c2 += ($c1 & 1) ? ($c2 < 0x60 ? 0x1F : 0x20) : 0x7E; |
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$c1 = (($c1 - 1) >> 1) + ($c1 < 0x5F ? 0x71 : 0xB1); |
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$_L2S{$s} = pack 'CC', $c1, $c2; |
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} |
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$_L2S{$s}; |
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}goex; |
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} |
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$str; |
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}goex; |
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$$s =~ s{ \x0E([\xA1-\xDF]+)\x0F }{ |
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$1; |
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}goex; |
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} |
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1; |
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__END__ |
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=head1 NAME |
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Encode::ISO2022::CP932 --- Encode module for ISO/IEC 2022 like |
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encoding of Microsoft CP932 (Shift JIS) |
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=head1 DESCRIPTION |
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Windows Code Page 932, Microsoft version of shift JIS, |
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is widely used in Japanese PC community. It is the combination |
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of JIS character set with non-standard extended characters (CCS) |
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and "shift JIS" encoding scheme (CES). |
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Non-PC communities such as un*x users' or Internet mail/news' |
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use standard JIS character set for CCS and EUC or 7bit |
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ISO/IEC 2022 for CES. |
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This situation makes such stupid converters that |
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output the charset consist of non-standard CCS and EUC |
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or 7bit ISO/IEC 2022 CES. |
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This module supports two such charsets. One is |
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C<x-iso2022jp-cp932>, |
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=head1 LICENSE |
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Copyright 2002 wakaba <w@suika.fam.cx> |
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This library is free software; you can redistribute it |
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and/or modify it under the same terms as Perl itself. |
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=head1 CHANGE |
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See F<ChangeLog>. |
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$Date: 2002/07/21 05:49:51 $ |
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=cut |
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