ONIG_OPTIMIZE_EXACT 4719 ext/mbstring/oniguruma/regcomp.c       reg->optimize = ONIG_OPTIMIZE_EXACT;
ONIG_OPTIMIZE_EXACT 3311 ext/mbstring/oniguruma/regexec.c   case ONIG_OPTIMIZE_EXACT:
ONIG_OPTIMIZE_EXACT 3429 ext/mbstring/oniguruma/regexec.c   case ONIG_OPTIMIZE_EXACT: