Mailinglist Archive: opensuse (2532 mails)

[G T Smith <grahamsmith@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>]

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David C. Rankin wrote:
> Listmates:
>
>     I don't know who I have to thank for this, but I think it was Anders
> who recommended that I look at perl after one of my last weird bash
> questions. I have a syntax question as I go though perl.
>
>     The situation. I read a file into an array and then go to reference
> each line.
>
> my $NUM = 1;
> open FILE, ".bashrc" or die $!;
> my @array = <FILE>;
>
>     How is it legal that I can reference the array element either as
> @array[element] or $array[element]?:
>
> while (@array[$NUM]) {
>     print "$NUM : @array[$NUM]\n";
>     $NUM++;
> }
>
> while ($array[$NUM]) {
>     print "$NUM : $array[$NUM]\n";
>     $NUM++;
> }
>
>     From what I've read, it seems like the list $array[element] would
> just return the number of characters in the list $array[element] not the
> text itself. How should I think about this?

The other (serious) responders are accurate however I suggest you get a
copy of the "Llama", i.e. Learning Perl, Randall L.Schwatz and Tom
Pheonix, O'Reilly Press (I do not know whether there is a newer edition
but I have the 3rd )...

The language has its nuances and this a good starting point to help
avoiding some beginner traps...


- --
==============================================================================
I have always wished that my computer would be as easy to use as my
telephone.
My wish has come true. I no longer know how to use my telephone.

Bjarne Stroustrup
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