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From "Luiz Fernando B. Ribeiro" <>
Subject Re: namespaces for imported embperl sub's
Date Wed, 23 Jun 2004 13:52:17 GMT
On Tue, 22 Jun 2004 13:57:42 -0400, Dan Manley <>  

> Hi,
> In a project I'm working on, I'd like to have some small and simple  
> embperl subs located in a lib directory, in individual files (for the  
> most part).  Consequently, I would like to be able to import all of  
> these files in a single call, like with something like this:
> Execute({ inputfile => $req->{embperl_common_lib} . "/all.epl", import  
> => 1, package => "SPOTNIK_COMMON" });
> all.epl would have a bunch of epl's to import, like this:
> [-
>   my $req = shift;
>   Execute( { inputfile => $req->{embperl_common_lib}.'/displaytime.epl',  
> import => 1, package => "SPOTNIK_COMMON" } );
>  -]
> But when I try to call a sub defined in displaytime.epl with the  
> namespace of SPOTNIK_COMMON:: it says the sub doesn't exist.
> Am I doing this the right way?  Is there something I'm missing or  
> something I should be doing differently?


Defining your own namespace can lead to some problems. Another solution is  
to let Embperl handle de namespace and use the isa syntax in Execute, like:

Execute({isa => 'subs.epl'});

Your subs will be available as methods of the request_rec object passed as  
first param in @_ for all pages.

Another solution is to use the object:
my $object = Execute({object => 'component.epl'});

Your subs will be available as methods of the returned reference, like:

For loading your pages I suggest you to put the list of pages to be  
imported in a shared function but to execute the Execute statement inside  
each page, like:

Execute({isa => $_}) foreach modules();

where modules return a list of your epl pages to be loaded.

I encourage you to take a look at EmbperlObject since all of this would  
become easier.

Luiz Fernando B. Ribeiro
Engenho Soluções para a Internet
+55 11 4485-0136

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