The lines will always be defined but I need to process that previous
line. I am still kinda in the closet on what you mean.
..
On Tue, 2003-12-30 at 09:42, James Edward Gray II wrote:
On Dec 30, 2003, at 10:36 AM, Eric Walker wrote:
> I am going through a file and when I enter a certain routine, I am
> entering a while loop with the <IN> construct. Is there a way to back
> the counter up or back up one line before I go into the while loop?
>
> a
> b
> c
> d
>
> Instead of seeing b when I enter the while loop, adjust some option and
> see the a.
How about adding:
my $last;
while (<IN>) {
# use $last here, but watch for undef on the first iteration, for
example:
do_something( $last ) if defined $last;
$last = $_;
}
Hope that helps.
James
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