using a separate module is a good idea in this kind of situation.
Put your subroutine to a separate file with the following format:
package packagename;
sub blaa {
code...code...code...
}
1; # So that the module will return a true value
__END__
Save this as packagename.pm and that's it.
Then to your main script you need to get this module included like:
use lib qw(path/to/your/module);
use packagename;
Then in your code you can access your good 'ol subroutine like this:
packagename::blaa();
or you can pass some argumenst into it as well:
packagename::blaa($argument);
etc. You probably get the picture.
A word of warning: I'm also a newbie, so if there were some errors in my
explanation, I'd be grateful to hear about it!
Cheers,
Joni
-----Original Message-----
From: Ken Cole [mailto:[EMAIL PROTECTED]]
Sent: 20 July 2001 03:29
To: perl. org Beginners
Subject: I need to create a module - I think - and don't know how
Hi everyone,
I am starting to write a number of perl programs. Most relate around a
particular application which has numerous environmental variables. The
variables can be set from a number of places and those places have a
hierarchy as to which takes precedence over the others.
I have therefore written a perl sub routine that builds up a hash of
environmental variables and their respective values and then use them in
my scripts.
I no longer want to maintain this sub routine in every script I write
regarding this application.
Do I need to create a module and put this routine in it?
If so how?
Do I declare it as a function in the module and then call it from my
other scripts?
All help as usual gratefully appreciated.
Ken Cole
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