Stevan Little writes:
>
> On Mar 29, 2005, at 8:38 AM, Luke Palmer wrote:
> >Hmm... I believe that the behavior in this case is undefined. It sure
> >would be nice if it worked, but you see:
> >
> > for =$fh -> $line { ... }
> >
> >Evaluates `=$fh` in list context. In an eager world, this eats up the
> >whole file in one go. In the ideal lazy world, it reads one line at a
> >time (which would allow this example to work... I think). And perhaps
> >that's how we need to define it.
>
> Personally I like the idea of this being lazy, as I like 'for' better
> than 'while' as a construct. But that is just opinion.
Oh, it is lazy. We can be sure of that. I was referring to defining a
filehandle's lazy as precisely "reading each line as we need it and no
more". That way intermediate calls to =$fh DTRT. But there are
implications of that, particular when taking about =$fh not in the
context of a simple for loop.
Luke
