On Wed, 1 Aug 2007, amiribarksdale wrote:
> Timothy:
>
> Thank you for your response. As you can probably tell from the structure of
> my loop, I am by no means a Perl professional or expert--could you please
> possibly explain to me what is going on in the first loop you post? I can't
> quite unpack it. I understand that you're adding some sort of index to each
> file's fields, but it's murky.
>
> If you don't have the time to do that, could you perhaps point me somewhere
> where I can read about this sort of algorithm?
I create a hash of hashes.
>> $num = ($basekey !~ s/-(\d+)$//) ? 1 : $1;
!~ means that the following regular expression is performed on $basekey. See
"man perlre" for details. If the regular expression doesn't happen, then $num
is set to 1, otherwise it's set to the part that matches inside the first set
of parentheses.
Basically, $num is the number of the file, and $basekey is the name of
the arg with the number stripped off.
>> $bighash->{$num}->{$basekey} = $ARGS{$key};
This makes a hash that looks like this:
-------------------
$bighash = {
1 => {
file => 'filename.txt',
title => 'This is a title',
...
},
2 => {
file => 'anotherfilename.txt',
title => 'Another title',
...
},
...
};
-------------------
Of course, you have to fill in the ... yourself. If you want to
access things in $bighash, use
$filename = $bighash->{1}->{file};
...or something like that.
You should be able to figure the whole thing out by looking at:
man perlre
man perllol
Hope this helps.
---------------------------------------------------------------------
| Name: Tim Nelson | Because the Creator is, |
| E-mail: [EMAIL PROTECTED] | I am |
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