CODEWITHSUNDEEP
perlmodulepackageperl-module
Dynamic
Dynamic

Reputation: 927

Creating Packages With Perl

I seem to be having a lot of trouble with making my first, simple Package (actually it is my first package period). I am doing everything I should be doing (I think) and it still isn't working. Here is the Package (I guess you can call it a Module):

package MyModule;

use strict;
use Exporter;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);

$VERSION     = 1.00;
@ISA         = qw(Exporter);
@EXPORT      = ();
@EXPORT_OK   = qw(func1 func2);
%EXPORT_TAGS = ( DEFAULT => [qw(&func1)],
             Both    => [qw(&func1 &func2)]);

sub func1  { return reverse @_  }
sub func2  { return map{ uc }@_ }

1;

I saved this module as MyModule (yes, it was saved as a .pm file) in Perl/site/lib (this is where all of my modules that are not built-in are stored). Then I tried using this module inn a Perl script:

use strict;
use warnings;

my @list = qw (J u s t ~ A n o t h e r ~ P e r l ~ H a c k e r !);

use Mine::MyModule qw(&func1 &func2);
print func1(@list),"\n";
print func2(@list),"\n";

I save this as my.pl. Then I run my.pl and get this error:

Undefined subroutine &main::func1 called at C:\myperl\examplefolder\my.pl line 7.

Can someone please explain why this happens? Thanks in advance!

Note:Yes my examples were from Perl Monks. See the Perl Monks "Simple Module Tutorial". Thank You tachyon!

Upvotes: 6

Views: 2068

Answers (2)

mamboking
mamboking

Reputation: 4637

It should be

package Mine::MyModule;

And it should be in the Mine directory under Perl/site/lib.

Upvotes: 2

Cfreak
Cfreak

Reputation: 19309

Your package name and your use name don't match. If you have your module in a folder called Mine then you need to name your package accordingly:

package Mine::MyModule

If you don't have it in that folder then you need to remove that from your use call

use MyModule

Upvotes: 3

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