4 die "Encode::JP not supported on EBCDIC\n";
8 our $VERSION = do { my @r = (q$Revision: 0.98 $ =~ /\d+/g); sprintf "%d."."%02d" x $#r, @r };
11 XSLoader::load('Encode::JP',$VERSION);
14 use Encode::JP::ISO_2022_JP;
15 use Encode::JP::ISO_2022_JP_1;
21 Encode::JP - Japanese Encodings
25 use Encode qw/encode decode/;
26 $euc_jp = encode("euc-jp", $utf8); # loads Encode::JP implicitly
27 $utf8 = decode("euc-jp", $euc_jp); # ditto
31 This module implements Japanese charset encodings. Encodings
32 supported are as follows.
34 Canonical Alias Description
35 --------------------------------------------------------------------
36 euc-jp /euc.*jp$/i EUC (Extended Unix Character)
39 shiftjis /shift.*jis$/i Shift JIS (aka MS Kanji)
41 7bit-jis /^jis$/i 7bit JIS
42 iso-2022-jp ISO-2022-JP
43 (7bit JIS with all Halfwidth Kana
44 converted to Fullwidth)
45 iso-2022-jp-1 ISO-2022-JP-1
46 (ISO-2022-JP with JIS X 0212-1990
48 macjapan Mac Japan (Shift JIS + Apple vendor mappings)
49 cp932 Code Page 932 (Shift JIS + MS/IBM vendor mappings)
50 --------------------------------------------------------------------
54 To find how to use this module in detail, see L<Encode>.
56 =head1 Note on ISO-2022-JP(-1)?
58 ISO-2022-JP-1 (RFC2237) is a superset of ISO-2022-JP (RFC1468) which
59 adds support for JIS X 0212-1990. That means you can use the same
60 code to decode to utf8 but not vice versa.
62 $utf8 = decode('iso-2022-jp-1', $stream);
63 $utf8 = decode('iso-2022-jp', $stream);
65 Yields the same result but
67 $with_0212 = encode('iso-2022-jp-1', $utf8);
71 $without_0212 = encode('iso-2022-jp', $utf8 );
73 In the latter case, characters that map to 0212 are at first converted
74 to U+3013 (0xA2AE in EUC-JP; a white square also known as 'Tofu') then
75 fed to decoding engine. U+FFFD is not used to preserve text layout as
80 ASCII part (0x00-0x7f) is preserved for all encodings, even though it
81 conflicts with mappings by the Unicode Consortium. See
83 L<http://www.debian.or.jp/~kubota/unicode-symbols.html.en>
85 to find why it is implemented that way.