rb_reg_preprocess 1361 re.c           rb_reg_preprocess(const char *p, const char *end, rb_encoding *enc,
rb_reg_preprocess 1440 re.c               unescaped = rb_reg_preprocess(
rb_reg_preprocess 2616 re.c               buf = rb_reg_preprocess(p, end, enc, &fixed_enc, err);
rb_reg_preprocess 2658 re.c                   buf = rb_reg_preprocess(p, end, src_enc, &fixed_enc, err);
rb_reg_preprocess 2705 re.c               unescaped = rb_reg_preprocess(s, s+len, enc, &fixed_enc, err);