iso_8859_2.c,iso_8859_6.c,iso_8859_7.c,iso_8859_8.c,iso_8859_9.c,
shift_jis.c,windows_1251.c}: add document about encodings.
* enc/cp949.c: divided into new file.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15516 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
(ENCINDEX_UTF_8): renamed from ENCINDEX_UTF8.
(rb_enc_init): use ENC_REGISTER.
* include/ruby/oniguruma.h (OnigEncodingUTF8, ONIG_ENCODING_UTF8):
removed.
* enc/*.c: remove use of &encoding_*; use enc argument instead.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15067 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* enc/sjis.c: move to enc/shift_jis.c, to make encoding name equal to
filename for convinience of loading lib.
* enc/shift_jis.c: moved from enc/sjis.c.
* common.mk: follows enc/shift_jis.c.
* enc/Makefile.in: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15014 b2dd03c8-39d4-4d8f-98ff-823fe69b080e