This thread reminds me of what I found hardest about the Lisp language. How many evals? how many quotes? I remember a lot of trial and error...
Regarding > L1 = 1,2,3; > L2 = (1,2,3); > process = ba.count(L1), ba.count((L1)), ba.count(L2), ba.count((L2)); I think 3, 1, 1, 1 would be the best answer, and 3, 1, 3, 1 second best, although I know it is now 3, 3, 3, 3. In any case, all implicit eval rules should be clearly predictable and documented. Cheers, - Julius On Sat, May 23, 2020 at 9:46 AM Oleg Nesterov <[email protected]> wrote: > Dario, > > I'm afraid I can't help. Firstly, I do not really understand your > questions. > But even if I understood, I am not sure I could answer authoritatively. > > On 05/22, Dario Sanfilippo wrote: > > > > On Fri, 22 May 2020 at 20:22, Oleg Nesterov <[email protected]> wrote: > > > > > On 05/22, Dario Sanfilippo wrote: > > > > > > > > Sorry for the confusion. What I wanted to ask is: why aren't the > extra > > > > parentheses making a difference? Because (0, (1,2,3)) is parsed as > > > > ((0),((1,2,3)), right? > > > > > > I missed a parenthesis, I meant that (0, (1,2,3)) is parsed as ((0), > > ((1,2,3))) > > Why do you think so? OK, please consider > > f(((x,y))) = x+y; > f( (x,y) ) = x-y; > > process(x,y) = f((x,y)); > > note the compiler warning: > > WARNING : shadowed pattern-matching rule: (<x>,<y>) => x,y : -; > previous rule was: (<x>,<y>) => x,y : +; > > See? The extra parentheses make no difference. > > And why do you think they should? IMO, this would be insane. Suppose you > change the compiler so that ba.count(((1,2,3))) returns 1. Now, what should > this program > > L1 = 1,2,3; > L2 = (1,2,3); > > process = ba.count(L1), ba.count((L1)), > ba.count(L2), ba.count((L2)); > > output? > > Or this one > > process = ba.count(par(i,3,i)), ba.count((par(i,3,i))); > > ? > > The current rules are at least clear/understandable, and whatever you or > me think it is too late to change them. > > Oleg. > > > > _______________________________________________ > Faudiostream-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/faudiostream-users > -- "Anybody who knows all about nothing knows everything" -- Leonard Susskind
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