09-08-2011
by exporting the variable in script2, we can use that in script1
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=============
-----
-----
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Hi all,
Warm regards!
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LEARN ABOUT DEBIAN
sub::exporter::globexporter
Sub::Exporter::GlobExporter(3pm) User Contributed Perl Documentation Sub::Exporter::GlobExporter(3pm)
NAME
Sub::Exporter::GlobExporter - export shared globs with Sub::Exporter collectors
VERSION
version 0.002
SYNOPSIS
First, you write something that exports globs:
package Shared::Symbol;
use Sub::Exporter;
use Sub::Exporter::GlobExport qw(glob_exporter);
use Sub::Exporter -setup => {
...
collectors => { '$Symbol' => glob_exporter(Symbol => '_shared_globref') },
};
sub _shared_globref { return *Common }
Now other code can import $Symbol and get their *Symbol made an alias to *Shared::Symbol::Symbol.
If you don't know what this means or why you'd want to do it, you may want to stop reading now.
The other class can do something like this:
use Shared::Symbol '$Symbol';
print $Symbol; # prints the scalar entry of *Shared::Symbol::Symbol
...or...
use Shared::Symbol '$Symbol' => { -as => 'SharedSymbol' };
print $SharedSymbol; # prints the scalar entry of *Shared::Symbol::Symbol
OVERVIEW
Sub::Exporter::GlobExporter provides only one routine, "glob_exporter", which may be called either by its full name or may be imported on
request.
my $exporter = glob_exporter( $default_name, $globref_locator );
The routine returns a collection validator that will export a glob into the importing package. It will export it under the name
$default_name, unless an alternate name is given (as shown above). The glob that is installed is specified by the $globref_locator, which
can be either the globref itself, or a reference to a string which will be called on the exporter
For an example, see the "SYNOPSIS", in which a method is defined to produce the globref to share. This allows the glob-exporting package
to be subclassed, for for the subclass to choose to re-use the same glob when exporting or to export a new one.
If there are entries in the arguments to the globref-exporting collector other than those beginning with a dash, a hashref of them will be
passed to the globref locator. In other words, if we were to write this:
use Shared::Symbol '$Symbol' => { arg => 1, -as => 2 };
It would result in a call like the following:
my $globref = Shared::Symbol->_shared_globref({ arg => 1 });
AUTHOR
Ricardo Signes <rjbs@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2010 by Ricardo Signes.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
perl v5.10.1 2010-11-23 Sub::Exporter::GlobExporter(3pm)