rb_reg_prepare_re  447 ext/strscan/strscan.c     regex_t *rb_reg_prepare_re(VALUE re, VALUE str);
rb_reg_prepare_re  462 ext/strscan/strscan.c     re = rb_reg_prepare_re(regex, p->str);
rb_reg_prepare_re   60 include/ruby/re.h regex_t *rb_reg_prepare_re(VALUE re, VALUE str);