Hi to all. I'm a perl rookie and I started to struggle creating my own modules. I'm having a question that I cannot answer by myself and I ask for your Wisdom to trow some light on my dilemma.
Lets say that I create a module Foo.pm, which has "new" sub.

package Foo;
sub new {
    my ($class) = @_;
    my $self = {};
    bless $self, $class;
}
[download]

And, I have my script test.pl which has:

use Foo;
my $one = Foo->new;
my $second = Foo->new;
[download]

And my question is: Is there a way that I can, inside Foo.pm, know the name of the variable that I'm using on test.pl?
Lets say I want to create a sub on Foo.pm that just returns the name of $one or $second.
Note that I need this to be able to catch and display my own custom warnings on Foo.pm and I want to give the name of the variable that caused the warning when printing on screen the warning message.
I hope my question is clear enough. I'm not a good english speaker so please excuse any error on the writing. Thanks in advance for any help or comment about this.

---

---

• Are you posting in the right place? Check out Where do I post X? to know for sure.
• Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:

  <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>

• Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
• Want more info? How to link or How to display code and escape characters are good places to start.