Sadahiro-san and perl-unicode readers, I am now working on Encode::JIS2K, an additional converter for JIS X 0213:2000. When I studied JIS X 0213, I found that for euc-jp, you can make a map so that it covers both JIS X 0212 and JIS X 0213. I thought they were mutually exclusive but they were not (there are some duplicates, however. So it was not as straightforward as aggregating two maps).
I have just finished making new euc-jp.ucm that behaves like this; for euc-jp, * Round-Trips for all JIS X 0201-kana, JIS X 0208 and JIS X 0212 (same as before) * Decode-only for those that appear only in JIS X 0213 Remind you that this new euc-jp.ucm is NOT THE SAME as euc-jp2k.ucm that is to be included in Encode::JIS2K; for euc-jisx0213, * Round-Trips for all JIS X 0201-kana and JIS X 0213 (both planes) * Decode-only for those that appear only in JIS X 0212 * Those that conflict with JIS X 0208 and JIS X 0213-plane1, JIS X 0213 definition is used. Only these 3 are different (so JIS X 0213-plane1 is ALMOST a superset of JIS X 0208). euc-jp <UFFE3> \xA1\xB1 |0 # FULLWIDTH MACRON <U2015> \xA1\xBD |0 # HORIZONTAL BAR <UFFE5> \xA1\xEF |0 # FULLWIDTH YEN SIGN euc-jisx0213 <U203E> \xA1\xB1 |0 # OVERLINE <U2014> \xA1\xBD |0 # EM DASH <U00A5> \xA1\xEF |0 # YEN SIGN In short, euc-jp and euc-jisx0213 differ only in encode() and decoders can decode both euc-jp(1990) and euc-jisx0213. If no one objects, I will use a new map for euc-jp in Encode-1.64 or later and Encode::JIS2K is to follow. Dan the Encode Maintainer
