>
> > BRH> My question is: why? Seems like such an easy thing to have done.
>
The answer is simple, the docs say so. The docs state the following in
"perldoc perlsyn" under section "Foreach Loops":
If the variable is preceded with the keyword "my",
then it is lexically scoped, and is therefore visible only
within the loop. Otherwise, the variable is implicitly
local to the loop and regains its former value upon exiting
the loop. If the variable was previously declared with
"my", it uses that variable instead of the global one, but
it's still localized to the loop. This implicit
localisation occurs only in a "foreach" loop.
The last line states this ONLY happens for a foreach loop. If you want
localization for while loops you must be explicit with
local $_;
while(<FILE>){
## blah
}
Obviously you assumed that it worked that way for while loops and
maybe even do{} while or do{} until loops. It even states near the end
of that section:
"foreach" probably won't do what you expect if VAR is a tied
or other special variable. Don't do that either.
I agree with Uri, you need to make it readable or else you will have
problems later.
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
