ONIG_STATE_DEC_THREAD 3810 regexec.c        ONIG_STATE_DEC_THREAD(reg);
ONIG_STATE_DEC_THREAD 4427 regexec.c        ONIG_STATE_DEC_THREAD(reg);
ONIG_STATE_DEC_THREAD 4448 regexec.c        ONIG_STATE_DEC_THREAD(reg);
ONIG_STATE_DEC_THREAD 4456 regexec.c        ONIG_STATE_DEC_THREAD(reg);