Hi Monks!

I'm playing around with "use constant" to better understand the pragma, and I ran into a curiosity question. Here's the scenario:

MyObject.pm defines and exports constants as follows: 

use Exporter;
our @ISA = qw(Exporter);
use constant {
   LOG_DEBUG => 0,
   LOG_INFO  => 1,
   LOG_WARN  => 2,
   LOG_ERROR => 3,
};
our @EXPORT = qw(LOG_DEBUG LOG_INFO LOG_WARN LOG_ERROR);

[download]
and the calling script uses these variables to instantiate an object of type MyObject like this: 
my $obj = MyObject->new(level=>LOG_DEBUG);

[download]

What I can't figure out how to do is specify the parameter in an XML config file, as <Level>LOG_DEBUG</Level>. I'm using XML::Simple to parse the config file, and I wind up with a hash that holds the string "LOG_DEBUG", which is quite different from the constant function LOG_DEBUG.

Is there an easy way to make this work?

I know it's not good practice to export stuff by default, but I'm just playing with a contrived scenario to explore the pragma.



PCS

In reply to Trying to understand the 'use constant' pragma by webengr

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