nkf_unicode_to_utf8 2084 ext/nkf/nkf-utf8/nkf.c 	nkf_unicode_to_utf8(val, &c1, &c2, &c3, &c4);
nkf_unicode_to_utf8 2791 ext/nkf/nkf-utf8/nkf.c 	nkf_unicode_to_utf8(val, &c1, &c2, &c3, &c4); \