[EP-tech] Re: Random question: Eprint core fields

[Yuri]

I agree. I  perl you can have an array, but [0] return error. If you 
cicle on it, you get the results.

You can try it with $eprint->get_value( 'creators' )[0] <- does not work

returning $eprint->get_value( 'creators' ) gives an ARRAY *hex number*

foreach my $c ( @{$creators} )

works.

I don't know why :-)


Il 04/07/2012 16:57, John Salter ha scritto:
> It was more the coding-standards inconsistencies I was thinking about (hence the pedant hat).
>
> For you and I it doesn't matter. To someone picking up eprints, and perl as a new language, it could be confusing.
>
> -----Original Message-----
> From: eprints-tech-bounces at ecs.soton.ac.uk [mailto:eprints-tech-bounces at ecs.soton.ac.uk] On Behalf Of Sebastien Francois
> Sent: 04 July 2012 15:45
> To: eprints-tech at ecs.soton.ac.uk
> Subject: [EP-tech] Re: Random question: Eprint core fields
>
> Single quotes won't extrapolate a variable (and characters such as \n,
> \r) while double quotes will:
>
> my $var1 = 'hello';
> my $var2 = '$var1 world';
> my $var3 = "$var1 world";
>
> print $var2;    # will print<$var1 world>
> print $var3;    # will print<hello world>
>
> Seb.
>
> On 04/07/12 15:36, Ian Stuart wrote:
>> On 04/07/12 11:49, John Salter wrote:
>>
>>> Also (if I put my pedant hat on, so feel free to ignore!), there's inconsistent use of quotes in that file:
>>> { name=>"contact_email", type=>"email", required=>0, can_clone=>0 },
>>> VS.
>>> { 'name' =>   'sword_depositor', 'type' =>   'itemref', datasetid=>"user" },
>> Perl knows that hash keys must be scalars, therefore assumes quotes.
>> Perl hash keys can be numeric scalars or string scalars, perl doesn't care.
>>
>> I also notice variation in the use of quotes within the same
>> declaration, and with the use of single- verses double-quotes on values :)
>>
>> Just goes to show how rich and helpful Perl is.... by not falling over
>> on the inconsequentials ;-)
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