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FAQ 5.39 Why do I get weird spaces when I print an array of lines?
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FAQ 5.39 Why do I get weird spaces when I print an array of lines? PerlFAQ Server 03-16-2008
Posted by Ted Zlatanov on March 18, 2008, 12:21 pm
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MD> wrote:

>> Note also that it doesn't just 'join' the elements but it also prints
>> them, which is obvious but still incorrect in the FAQ.

MD> What is "it"? It's not clear from the context, because print() does
MD> print them, but it's up to the double quotes a.k.a. qq() to join
MD> interpolated arrays.

MD> my $s = "@{[qw/foo bar baz/]}";
MD> print $s;

In the context of the FAQ that I quoted "it" was a single

print "@array";

line. That's why I made the correction s/join/print/. It's pedantic
and really not too important.

Ted

Posted by brian d foy on March 18, 2008, 5:16 pm
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> The problem is that the simple FAQ answer is wrong exactly when people
> may be looking for reasons why there are weird separators in a list.

It's not wrong, it just isn't that good.

Posted by Ted Zlatanov on March 26, 2008, 5:27 pm
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>> The problem is that the simple FAQ answer is wrong exactly when people
>> may be looking for reasons why there are weird separators in a list.

bdf> It's not wrong, it just isn't that good.

Do you want rewrite suggestions or will you do it?

Ted

Posted by brian d foy on March 27, 2008, 7:38 am
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> wrote:
>
>
> >> The problem is that the simple FAQ answer is wrong exactly when people
> >> may be looking for reasons why there are weird separators in a list.
>
> bdf> It's not wrong, it just isn't that good.
>
> Do you want rewrite suggestions or will you do it?

It's already rewritten and commited to the repository.

Posted by benkasminbullock@gmail.com on March 18, 2008, 9:50 pm
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> I think the FAQ should say:
>
> Saying
>
> print "@lines\n";
>
> prints together the elements of @lines with a space between them (unless
> $" has been changed from the default, see `perldoc perlvar').

That seems like a good idea to me.


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