[Bioperl-l] Variable scope

[Florin Iucha]

On Mon, Oct 02, 2006 at 07:43:13PM +0200, ende wrote:
> It is a annoying problem that is making me waste lot of time.
> 
> I have a package with its new object, etc... and constants in it like:
> 
> #-----
> use constant False => 0;
> use constant True => 1;
> 
> our %CLRFG = (
>                PLASMIDO      => RED,
>                POLY_A        => GREEN,
>                RESTR_SITES   => BLUE,
>                CONECTORS     => MAGENTA,
>                CONTAMINANTS  => CYAN,
>            );
> 
> our %CLRBG = (
>                PLASMIDO      => "",
>                POLY_A        => "",
>                RESTR_SITES   => "",
>                CONECTORS     => "",
>                CONTAMINANTS  => "",
>            );
> #------
> 
> this constants are include with require "h.pl" from the main package  
> file.
> 
> I use this module from the mail command line driver to test it  
> "using" it.  In the command line driver I can use with no gripe the  
> constants False and True directly, for example "return True", etc  
> without any reference to the origin of that constant.

It is possible you get them from somewhere else.

> But, with respect to the variables (I would like they also were  
> constants.. but how?), %CLRFG and %CLRBG I can't find the way of  
> refering those int the module.  Finally I have desisted and _copy_  
> the definitions where  I have needed it (in the sub were I print Ansi  
> terminal colouring seqs...).  I don't find how to refer those  
> variables out of the module.
> 
> I have tried %modulename::CLRFG, for example, but Perl gives me errors.

Did you actually declare a package name in "h.pl" ?

Is there any reason you don't call the file ".pm" and load it with
"use"?  I have attached a small example of importing that works.

florin

-- 
If we wish to count lines of code, we should not regard them as lines
produced but as lines spent.                       -- Edsger Dijkstra
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