Thank you Alex...that's great. I just came back to say that the above worked well for both strings and numbers entered directly as the passed functions argument but not (it seems :) ) for when the argument is supplied in a symbol. eval might well cope with that and if not...I'll work on it.
Note, btw, that (car (cdr X)) can be simplified to (cadr X) I thought that initially too but as you can see here (cdr Canned_fn) gives a problem whereas (car (cdr Canned_fn)) removes the parens that get put around Num. I don't need the car for a string argument in another example so... there could well be something wrong with this example (de x2 (Num) (setq Res (* Num 2))) (de fnfn (Canned_fn) (wait 1000) ((car Canned_fn) (cdr Canned_fn))) #calling a canned fn passed as arg (prinl (x2 3)) #testing straight fn call -> 6 (prinl (fnfn '(x2 4))) #calling x2 as canned fn->8 Best Regards Dean On 20 January 2017 at 18:55, Alexander Burger <a...@software-lab.de> wrote: > On Fri, Jan 20, 2017 at 06:26:14PM +0000, dean wrote: > > I seem to be able to do this by.... > > (de some_fn (Canned_fn_and_arg...... > > > > and then executing the Canned_fn_and_arg inside some_fn by doing.... > > ((car Canned_fn) (car (cdr Canned_fn))) > > > > Is this the right way or is there a slicker one? > > It depends on how 'Canned_fn_and_arg' looks like. > > > I suspect that instead of > > ((car Canned_fn) (car (cdr Canned_fn))) > > you could just call > > (eval Canned_fn) > > ♪♫ Alex > > > Note, btw, that (car (cdr X)) can be simplified to (cadr X) > -- > UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe >
