Exporter::Lite(3pm)					User Contributed Perl Documentation				       Exporter::Lite(3pm)

NAME

       Exporter::Lite - Lightweight exporting of variables

SYNOPSIS

	 package Foo;
	 use Exporter::Lite;

	 # Just like Exporter.
	 @EXPORT       = qw($This That);
	 @EXPORT_OK    = qw(@Left %Right);

	 # Meanwhile, in another piece of code!
	 package Bar;
	 use Foo;  # exports $This and &That.

DESCRIPTION

       This is an alternative to Exporter intended to provide a lightweight subset of its functionality.  It supports "import()", @EXPORT and
       @EXPORT_OK and not a whole lot else.

       Unlike Exporter, it is not necessary to inherit from Exporter::Lite (ie. no "@ISA = qw(Exporter::Lite)" mantra).  Exporter::Lite simply
       exports its import() function.  This might be called a "mix-in".

       Setting up a module to export its variables and functions is simple:

	   package My::Module;
	   use Exporter::Lite;

	   @EXPORT = qw($Foo bar);

       now when you "use My::Module", $Foo and "bar()" will show up.

       In order to make exporting optional, use @EXPORT_OK.

	   package My::Module;
	   use Exporter::Lite;

	   @EXPORT_OK = qw($Foo bar);

       when My::Module is used, $Foo and "bar()" will not show up.  You have to ask for them.  "use My::Module qw($Foo bar)".

Methods
       Export::Lite has one public method, import(), which is called automaticly when your modules is use()'d.

       In normal usage you don't have to worry about this at all.

       import
	     Some::Module->import;
	     Some::Module->import(@symbols);

	   Works just like "Exporter::import()" excepting it only honors @Some::Module::EXPORT and @Some::Module::EXPORT_OK.

	   The given @symbols are exported to the current package provided they are in @Some::Module::EXPORT or @Some::Module::EXPORT_OK.
	   Otherwise an exception is thrown (ie. the program dies).

	   If @symbols is not given, everything in @Some::Module::EXPORT is exported.

DIAGNOSTICS

       '"%s" is not exported by the %s module'
	   Attempted to import a symbol which is not in @EXPORT or @EXPORT_OK.

       'Can't export symbol: %s'
	   Attempted to import a symbol of an unknown type (ie. the leading $@% salad wasn't recognized).

BUGS and CAVEATS
       Its not yet clear if this is actually any lighter or faster than Exporter.  I know its at least on par.

       OTOH, the docs are much clearer and not having to say "@ISA = qw(Exporter)" is kinda nice.

AUTHORS

       Michael G Schwern <schwern@pobox.com>

LICENSE

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       See http://www.perl.com/perl/misc/Artistic.html

SEE ALSO

       Exporter, Exporter::Simple, UNIVERSAL::exports

perl v5.10.0							    2006-11-11						       Exporter::Lite(3pm)