----- Original Message -----
From: "oldyork90" <[EMAIL PROTECTED]>
Newsgroups: perl.beginners
To: <beginners@perl.org>
Sent: Wednesday, September 10, 2008 10:19 AM
Subject: local var with no assignment
True or false. (Trying to figure out why this would be done with no
assignment).
The reason is that $/ is initialized to 'undef' inside the block. If you
were reading a file, this would result in slurping the file.
my $file;
{
local $/;
$file = <some_filehandle>;
}
Now do something with the file contained in $file.
You can read about this in the FAQ
perldoc -q "How can I read in an entire file all at once?"
Chris
In the following construct, the current value of $/ is
protected by localizing it to the scope of the block. In this block,
the current value of $/ is not changed.
{
local $/;
# do some things here. The value of $/ is not modified in any of
the code here.
}
Thank you.
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/
