> How exactly would this treat e.g. yt $URL/somefile > Would the variable still be expanded? Would an asterisk glob be? No. Pure should mean don't do any

> How exactly would this treat e.g. yt $URL/somefile > Would the variable still be expanded? Would an asterisk glob be? No. Pure should mean don't do anything from here on, just pass the arguments to the function. > If I _did_ want it to expand something even though the function is declared "pure", how would that work? If expanding should be possible in a pure context, then maybe by using a known syntax like: yt ($URL)/somefile Eshell expands Lisp code when using (lisp-code-here) which is kind of elegant. So when in a pure context, you would have to switch to expansion-mode by using curly braces.