Hi Wags...
So now an idle style question, if you don't mind...
This syntax seems pretty obscure to me (I had to look up what printf
was doing):
printf "%3d $file\n", $MyId++;
It's efficient and all, but isn't this more readable for the same
number of characters?
print "$MyId $file\n";
$MyId++;
I just wondered why you like printf in this circumstance.
-Chris
-----Original Message-----
From: Wagner, David --- Senior Programmer Analyst --- WGO
[mailto:[EMAIL PROTECTED]
Sent: Wednesday, November 05, 2003 3:36 PM
To: McMahon, Chris; [EMAIL PROTECTED]
Subject: RE: help building hash on-the-fly?
McMahon, Chris wrote:
> Hello...
> This is probably a very simple question, but I don't have
> much experience using hashes...
> I have a simple program that lists all of the files on a
> directory:
>
> @files = </dir/*>;
> foreach $file (@files) {
> print "$file\n";
> }
>
> which prints something like this:
> /dir/file1
> /dir/file2
> /dir/file3
> etc.
>
> But an array doesn't suit my needs. What I really need
You could but why. As part of your print you could do somehting
like:
my $MyId = 1;
foreach $file (@files) {
printf "%3d $file\n", $MyId++;
}
Which should print out just as you want.
Now the individual can enter say 3, and you can put from @files by
subtracting 1 and you would have the file. Using scalar(@files) you now
have your Max files within your array, so if they enter 6. You subtract 1
and get 5 but scalar(@files) returns 4, you know they entered an invalid
number.
Just a thought.
Wags ;)
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