onig_name_to_backref_number  981 ext/strscan/strscan.c     num = onig_name_to_backref_number(RREGEXP_PTR(regexp),
onig_name_to_backref_number  821 include/ruby/oniguruma.h int onig_name_to_backref_number P_((OnigRegex reg, const OnigUChar* name, const OnigUChar* name_end, OnigRegion *region));
onig_name_to_backref_number 1137 re.c               num = onig_name_to_backref_number(RREGEXP_PTR(regexp),
onig_name_to_backref_number 1821 re.c               return onig_name_to_backref_number(RREGEXP_PTR(regexp),