onig_region_resize  815 include/ruby/oniguruma.h int onig_region_resize P_((OnigRegion* region, int n));
onig_region_resize 1304 re.c               onig_region_resize(&rmatch->regs, 1);
onig_region_resize  292 regexec.c        r = onig_region_resize(region, n);
onig_region_resize  304 regexec.c          int r = onig_region_resize(region, at + 1);
onig_region_resize  358 regexec.c        r = onig_region_resize(to, from->num_regs);