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.
Even is list context I see a (lazy) readline as being much like:
for (0 .. Inf) -> $num {}or:
for (0 ...) -> $num {}which (to the best of my understanding) creates a lazy list of 0 to infinity.
Either way I agree, it should be specified (my vote is for lazy).
- Steve
