ONIGENC_IS_CODE_ASCII 246 enc/emacs_mule.c if (ONIGENC_IS_CODE_ASCII(code)) return 1; ONIGENC_IS_CODE_ASCII 247 enc/euc_jp.c if (ONIGENC_IS_CODE_ASCII(code)) return 1; ONIGENC_IS_CODE_ASCII 223 include/ruby/encoding.h #define rb_enc_isascii(c,enc) ONIGENC_IS_CODE_ASCII(c) ONIGENC_IS_CODE_ASCII 918 regint.h (ONIGENC_IS_CODE_ASCII(code) && ONIGENC_IS_CODE_WORD(enc,code))