McMahon, Chris wrote:
> 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
I like things to look right and if you have more than 9 items, then you don't
line up like I would like it. I very seldom use just print and almost always use
printf to keep things lined up as I would like them. It boils down to what you feel
comfortable with.
Wags ;)
>
> -----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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