If this variable is nil, `r' elements will be treated just like `p'
elements, unless the template function is given a prefix (or a non-nil
argument). If this variable is non-nil, the behavior is reversed.
If this variable is nil, `r' elements will be treated just like `p'
elements, unless the template function is given a prefix (or a non-nil
argument). If this variable is non-nil, the behavior is reversed.