from_pos         1749 ext/mbstring/oniguruma/regparse.c     int from_pos = SIZE_CODE_POINT * (1 + high * 2);
from_pos         1754 ext/mbstring/oniguruma/regparse.c       BBUF_MOVE_RIGHT(bbuf, from_pos, to_pos, size);
from_pos         1757 ext/mbstring/oniguruma/regparse.c       BBUF_MOVE_LEFT_REDUCE(bbuf, from_pos, to_pos);