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2 points by fallintothis 5461 days ago | link | parent

ignore this eventual issue and focus on the precise problem of 'each

Certainly. It was in the back of my head when I wrote my reply. I didn't mention it because I was trying to be terse (I have a problem being long-winded), so opted to focus on something small in my post.

But I agree: macroexpansion time is kind of fuzzy in Arc. It even gets in the way of things like

  arc> (let do [+ _ 1] (do 1 2 3))
  3
which has been a source of hand-waving for awhile with no clear answer: http://arclanguage.org/item?id=9696. But that's another story (in a manner of speaking).

Not to pick on the intended each behavior (after all, why bother writing code if you don't like how it looks?) or the actual topic of this post.



1 point by palsecam 5461 days ago | link

Thanks for the link and (let do ...) example. Interesting to read.

> macroexpansion time is kind of fuzzy in Arc

Well, this was the point of this post! It is important to know about the "limits" of your macros system. As CatDancer mentioned it, there are differences between them. The catch phrase "macros are evaluated at expansion time, functions at runtime, ..." is too simplistic and doesn't provide enough knowledge at some point.

> why bother writing code if you don't like how it looks?

You, Sir, are a wise man :-)!

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