Re^5: Do modules know the callers full path?

Please correct me, but how is this better than abs_path($0) ?

Because it answers the OP's question... "Is there a way to get a module to return the full system path of the script using the module?"

$ cat lib/Foo/Bar.pm 
package Foo::Bar;
use warnings;
use strict;
use Cwd qw/abs_path/;

sub foo {
    my $callerfile = (caller)[1];
    print "DEBUG: caller=<$callerfile> \$0=<$0>\n";
    return abs_path($callerfile);
}

1;

$ cat y.pl 
use warnings;
use strict;
use Foo::Bar;
print Foo::Bar::foo(), "\n";

$ cat x.pl 
use warnings;
use strict;
do './y.pl';

$ perl -Ilib x.pl 
DEBUG: caller=<./y.pl> $0=<x.pl>
/tmp/y.pl
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Comment on Re^5: Do modules know the callers full path? Download Code

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Re^6: Do modules know the callers full path? by haj (Vicar) on Feb 15, 2023 at 22:00 UTC
Your emphasis the script using the module demonstrates the ambiguity of the OP's question. Is this about the script (which we usually identify as whatever is in `$0`) or is this the file from which a particular subroutine was called, as returned by `caller`? "Using a module" and "calling a subroutine in a module" are different things and can happen in different files.	[reply]
Re^7: Do modules know the callers full path? by haukex (Archbishop) on Feb 15, 2023 at 22:07 UTC
Your emphasis the script using the module* demonstrates the ambiguity of the OP's question.* You're absolutely right of course, which is why in my other reply I asked for even more clarification.	[reply]
Re^7: Do modules know the callers full path? by LanX (Saint) on Feb 15, 2023 at 22:28 UTC
> is this the file from which a particular subroutine was called, NB: caller is not only useful inside a subroutine, at the beginning of a module (i.e. outside any sub) it will report the point of `use` or `require` That's the basic mechanism for (original) modulinos. Cheers Rolf _{(addicted to the 𐍀𐌴𐍂𐌻 Programming Language :) Wikisyntax for the Monastery}	[reply]
Re^6: Do modules know the callers full path? by LanX (Saint) on Feb 15, 2023 at 21:28 UTC
Well semantics, but I see your point "The script" for me is the root file executed. YMMV Cheers Rolf _{(addicted to the 𐍀𐌴𐍂𐌻 Programming Language :) Wikisyntax for the Monastery}	[reply]