NAME
Encode::JP - Japanese Encodings
SYNOPSIS
1 2 3 | use Encode qw/encode decode/; $euc_jp = encode( "euc-jp" , $utf8 ); # loads Encode::JP implicitly $utf8 = decode( "euc-jp" , $euc_jp ); # ditto |
ABSTRACT
This module implements Japanese charset encodings. Encodings supported are as follows.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | Canonical Alias Description -------------------------------------------------------------------- euc-jp /\beuc.*jp$/i EUC (Extended Unix Character) /\bjp.*euc/i /\bujis$/i shiftjis /\bshift.*jis$/i Shift JIS (aka MS Kanji) /\bsjis$/i 7bit-jis /\bjis$/i 7bit JIS iso-2022-jp ISO-2022-JP [RFC1468] = 7bit JIS with all Halfwidth Kana converted to Fullwidth iso-2022-jp-1 ISO-2022-JP-1 [RFC2237] = ISO-2022-JP with JIS X 0212-1990 support. See below MacJapanese Shift JIS + Apple vendor mappings cp932 /\bwindows-31j$/i Code Page 932 = Shift JIS + MS/IBM vendor mappings jis0201-raw JIS0201, raw format jis0208-raw JIS0201, raw format jis0212-raw JIS0201, raw format -------------------------------------------------------------------- |
DESCRIPTION
To find out how to use this module in detail, see Encode.
Note on ISO-2022-JP(-1)?
ISO-2022-JP-1 (RFC2237) is a superset of ISO-2022-JP (RFC1468) which adds support for JIS X 0212-1990. That means you can use the same code to decode to utf8 but not vice versa.
1 | $utf8 = decode( 'iso-2022-jp-1' , $stream ); |
and
1 | $utf8 = decode( 'iso-2022-jp' , $stream ); |
yield the same result but
1 | $with_0212 = encode( 'iso-2022-jp-1' , $utf8 ); |
is now different from
1 | $without_0212 = encode( 'iso-2022-jp' , $utf8 ); |
In the latter case, characters that map to 0212 are first converted to U+3013 (0xA2AE in EUC-JP; a white square also known as 'Tofu' or 'geta mark') then fed to the decoding engine. U+FFFD is not used, in order to preserve text layout as much as possible.
BUGS
The ASCII region (0x00-0x7f) is preserved for all encodings, even though this conflicts with mappings by the Unicode Consortium.
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