[prog] Perl code

[Jacinta Richardson]

Noir wrote:
> Thanks for the help. I didn't know that Perl is so
> fussy about spacing.

Typically Perl isn't fussy about spacing.

    $names [ $_ - 1 ]

is usually the same as:

    $names[$_-1]

etc.

However when printing, Perl cannot tell the difference between:

    print "$names [normal text in literal square brackets]";

and

    print "$names [some index]";

so it assumes you mean the former.

Had you been using strict you would have got an error telling you that 
$names (the scalar) had not been predefined and thus you would have 
realised your error faster.

I find the inconvenience of having to write "my" before my variables is 
well worth the convenience of having strict point out this kind of silly 
typo.

all the best,

     Jacinta

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