Hi Alex I changed those 'Key 'Keys and 'Fn_to_call shortly after posting. There'll also be a 3rd list call 'Args. Because there are numerous associated bits and pieces they seem a good candidate for an object. Thank you for "pick" and the above corrections. Best Regards Dean
On 13 December 2016 at 19:58, Alexander Burger <a...@software-lab.de> wrote: > Hi Dean, > > > (setq I '(() (a) (a b))) > > (setq V '(empty a_vlu ab_vlu)) > > (de vlu4key (K 'I 'V) > > This is fatal! A function needs a list of *symbols*, not expressions like > 'I ;) > > > > (de vlu4key (Vlu 'I 'V) > > > (setq Ix (index Vlu I)) > > > (get V Ix) ) > > Using 'index' to find an element and then traverse the list again with > 'get' is > not efficient. > > Instead, I recommend 'pick' where you pass the two lists. > > Cheers, > - Alex > -- > UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe >
