skaller wrote:
> * In your code _5 is never executed. The Python form
> you are so fond of is hard to understand, I don't
> understand what it does .. and neither do you!
Whoops, typo :) This is what I meant:
#import <flx.flxh>
#keyword otherwise
#statement#
whilst2 expr do statements otherwise statements done ; =>#
macro {
macro lab1 is new;
macro lab2 is new;
macro lab3 is new;
macro val break = { goto lab3; };
lab1:>
if not _1 goto lab2;
_3;
goto lab1;
lab2:>
_5;
lab3:>
};
#
var i = 0;
whilst2 i < 5 do
print i; endl;
if i > 2 do
print "breaking"; endl;
break;
done;
i++;
otherwise
print "finished without a break"; endl;
done;
endl;
i = 0;
whilst2 i < 5 do
print i; endl;
i++;
otherwise
print "finished without a break"; endl;
done;
-----------------
0
1
2
3
breaking
0
1
2
3
4
finished without a break
>
> Try this .. noting the STILL ugly failure to properly
> detect the last iteration.
[snip]
neat! I like that a lot. It reminds me a lot of the lisp looping macro.
Once we refine this down a bit and extend it to for, until, and etc,
think it'd be worthwhile to put it in the standard library?
> Some notes:
>
> * you cannot use 'else' as a separator here.
Thats okay. "else" isn't really the most sensible word for what this
construct is. I like your example, and "otherwise" may be close, but I
still think something may still be more appropriate.
> * For some reason I do not understand, you need this:
>
> macro var break = { goto lab3; };
Another bug on the list! :)
>
> What I don't understand at the moment is why this works
> with a macro var, but NOT a macro val.
And another!
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