ONIG_OPTION_ON    145 ext/mbstring/oniguruma/regposix.c     ONIG_OPTION_ON(options, ONIG_OPTION_IGNORECASE);
ONIG_OPTION_ON    147 ext/mbstring/oniguruma/regposix.c     ONIG_OPTION_ON( options, ONIG_OPTION_NEGATE_SINGLELINE);