Jeff King wrote:
> I believe it is fine. The tricky thing is that perl's parsing is
> dependent on what functions have been defined. So it is OK to say
>
> ReadKey 0;
>
> if a subroutine ReadKey has been defined, but otherwise it generates a
> warning about using the bareword as a function. However
>
> ReadKey(0);
>
> parses unambiguously, so it is always OK, even if no subroutine has yet
> been defined.
Ok, that explains a lot. I always thought Perl had a syntax
influenced somewhat by the functional programming languages, where the
parentheses are usually optional. Clearly not so.
> (note that you could also skip the import and just call
> Term::ReadKey::ReadKey by its full name).
I tried that but couldn't get either Term::ReadKey::ReadKey or
Term::ReadKey->ReadKey to work. In retrospect, I suppose it requires
parentheses too.
Thanks for the review!
--
Thomas Rast
trast@{inf,student}.ethz.ch
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