ONIG_OPTIMIZE_EXACT_IC 4687 mbstring/oniguruma/regcomp.c reg->optimize = ONIG_OPTIMIZE_EXACT_IC; ONIG_OPTIMIZE_EXACT_IC 3324 mbstring/oniguruma/regexec.c case ONIG_OPTIMIZE_EXACT_IC: ONIG_OPTIMIZE_EXACT_IC 3445 mbstring/oniguruma/regexec.c case ONIG_OPTIMIZE_EXACT_IC: