ONIG_REGION_NOTPOS   58 regexec.c          node->beg = ONIG_REGION_NOTPOS;
ONIG_REGION_NOTPOS   59 regexec.c          node->end = ONIG_REGION_NOTPOS;
ONIG_REGION_NOTPOS   91 regexec.c        node->beg        = ONIG_REGION_NOTPOS;
ONIG_REGION_NOTPOS   92 regexec.c        node->end        = ONIG_REGION_NOTPOS;
ONIG_REGION_NOTPOS  164 regexec.c          region->beg[i] = region->end[i] = ONIG_REGION_NOTPOS;
ONIG_REGION_NOTPOS 1359 regexec.c      		rmt[i].rm_so = rmt[i].rm_eo = ONIG_REGION_NOTPOS;
ONIG_REGION_NOTPOS 1379 regexec.c      		region->beg[i] = region->end[i] = ONIG_REGION_NOTPOS;
ONIG_REGION_NOTPOS  859 regparse.c     	if (region->beg[nums[i]] != ONIG_REGION_NOTPOS)