file load

[jeff]

~sdpm~
Can anyone point me to a good tutorial or description of perl garbage
collecting?


Russ Schnapp wrote:

> ~sdpm~
> >> or, for fewer variable names:
> >>
> >>   {
> >>   local $/ = undef;
> >>   $string = <FILE>;
> >>   }
>
> >it can't be "my $/ = undef;" ??
>
> Nope.  That's the subtle difference between "my" and "local".  The
> former is more like a conventional local variable.
>
> A "my" identifier masks globals that are referred to WITHIN the
> block in which they are declared.
>
> A "local" identifier in PERL actually is new instance of the variable
> that masks ALL references to global, WHEREVER THEY MAY
> OCCUR, so long as the block in which they are declared is active.
>
> It's cute.  It's handy.  It's a nightmare, from a language design point
> of view.  It means that when you look at a variable reference, you
> can't definitively say where the variable is defined.
>
> Larry Wall provided us with a very functional, very powerful
> language.  If only he had had a language design background,
> though.  I'll fight my urge to whine about many other unnecessary
> "features" of the language.  (Can you tell that I'm not a big fan of
> being able to do the same simple thing 5 different ways in a single
> language?)
>
> ...Russ Schnapp
> Schnapp Software Consulting
> http://www.schnapp.org/
> ~sdpm~
>
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--
Jeff Saenz
jeff at planetoid.net


~sdpm~

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