non_low          2320 ext/mbstring/oniguruma/regparse.c   int low, up, syn_allow, non_low = 0;
non_low          2352 ext/mbstring/oniguruma/regparse.c       non_low = 1;
non_low          2368 ext/mbstring/oniguruma/regparse.c       if (non_low != 0)
non_low          2374 ext/mbstring/oniguruma/regparse.c     if (non_low != 0)