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Digest	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Encode	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Exporter	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
ExtUtils	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
File	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
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Getopt	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
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I18N	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
IO	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
IPC	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
JSON	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Locale	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
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Net	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Params	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Parse	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
Perl	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
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Unicode	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
User	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
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version	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
warnings	[ DIR ]	drwxr-xr-x	2019-05-31 11:39
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AnyDBM_File.pm	2.56 KB	-r--r--r--	2019-05-31 11:39
AutoLoader.pm	15.43 KB	-r--r--r--	2019-05-31 11:39
AutoSplit.pm	19.18 KB	-r--r--r--	2019-05-31 11:39
Benchmark.pm	30.3 KB	-r--r--r--	2019-05-31 11:39
CORE.pod	3.11 KB	-r--r--r--	2019-05-31 11:39
CPAN.pm	138.65 KB	-r--r--r--	2019-05-31 11:39
Carp.pm	35.12 KB	-r--r--r--	2019-05-31 11:39
DB.pm	18.48 KB	-r--r--r--	2019-05-31 11:39
DBM_Filter.pm	14.05 KB	-r--r--r--	2019-05-31 11:39
Digest.pm	10.45 KB	-r--r--r--	2019-05-31 11:39
DirHandle.pm	2.04 KB	-r--r--r--	2019-05-31 11:39
Dumpvalue.pm	17.14 KB	-r--r--r--	2019-05-31 11:39
English.pm	4.65 KB	-r--r--r--	2019-05-31 11:39
Env.pm	5.39 KB	-r--r--r--	2019-05-31 11:39
Exporter.pm	18.36 KB	-r--r--r--	2019-05-31 11:39
Fatal.pm	56.81 KB	-r--r--r--	2019-05-31 11:39
FileCache.pm	5.42 KB	-r--r--r--	2019-05-31 11:39
FileHandle.pm	6.63 KB	-r--r--r--	2019-05-31 11:39
FindBin.pm	4.45 KB	-r--r--r--	2019-05-31 11:39
Internals.pod	2.51 KB	-r--r--r--	2019-05-31 11:39
Memoize.pm	35.34 KB	-r--r--r--	2019-05-31 11:39
NEXT.pm	18.54 KB	-r--r--r--	2019-05-31 11:39
PerlIO.pm	10.21 KB	-r--r--r--	2019-05-31 11:39
Safe.pm	24.49 KB	-r--r--r--	2019-05-31 11:39
SelectSaver.pm	1.05 KB	-r--r--r--	2019-05-31 11:39
SelfLoader.pm	17.27 KB	-r--r--r--	2019-05-31 11:39
Symbol.pm	4.69 KB	-r--r--r--	2019-05-31 11:39
Test.pm	29.34 KB	-r--r--r--	2019-05-31 11:39
Test2.pm	6.24 KB	-r--r--r--	2019-05-31 11:39
Thread.pm	8.09 KB	-r--r--r--	2019-05-31 11:39
UNIVERSAL.pm	6.44 KB	-r--r--r--	2019-05-31 11:39
XSLoader.pm	10.99 KB	-r--r--r--	2019-05-31 11:39
_charnames.pm	32.39 KB	-r--r--r--	2019-05-31 11:39
autodie.pm	12.58 KB	-r--r--r--	2019-05-31 11:39
autouse.pm	4.14 KB	-r--r--r--	2019-05-31 11:39
base.pm	10.7 KB	-r--r--r--	2019-05-31 11:39
bigint.pm	22.85 KB	-r--r--r--	2019-05-31 11:39
bignum.pm	20.64 KB	-r--r--r--	2019-05-31 11:39
bigrat.pm	15.78 KB	-r--r--r--	2019-05-31 11:39
blib.pm	2.01 KB	-r--r--r--	2019-05-31 11:39
bytes.pm	3.65 KB	-r--r--r--	2019-05-31 11:39
bytes_heavy.pl	758 B	-r--r--r--	2019-05-31 11:39
charnames.pm	20.38 KB	-r--r--r--	2019-05-31 11:39
constant.pm	14.38 KB	-r--r--r--	2019-05-31 11:39
deprecate.pm	4.5 KB	-r--r--r--	2019-05-31 11:39
diagnostics.pm	18.59 KB	-r--r--r--	2019-05-31 11:39
dumpvar.pl	15.19 KB	-r--r--r--	2019-05-31 11:39
experimental.pm	6.9 KB	-r--r--r--	2019-05-31 11:39
feature.pm	17.28 KB	-r--r--r--	2019-05-31 11:39
fields.pm	9.25 KB	-r--r--r--	2019-05-31 11:39
filetest.pm	3.91 KB	-r--r--r--	2019-05-31 11:39
if.pm	3.53 KB	-r--r--r--	2019-05-31 11:39
integer.pm	3.18 KB	-r--r--r--	2019-05-31 11:39
less.pm	3.13 KB	-r--r--r--	2019-05-31 11:39
locale.pm	4.74 KB	-r--r--r--	2019-05-31 11:39
meta_notation.pm	2.07 KB	-r--r--r--	2019-05-31 11:39
ok.pm	967 B	-r--r--r--	2019-05-31 11:39
open.pm	7.83 KB	-r--r--r--	2019-05-31 11:39
overload.pm	52.04 KB	-r--r--r--	2019-05-31 11:39
overloading.pm	1.77 KB	-r--r--r--	2019-05-31 11:39
parent.pm	2.51 KB	-r--r--r--	2019-05-31 11:39
perl5db.pl	309.68 KB	-r--r--r--	2019-05-31 11:39
perlfaq.pm	77 B	-r--r--r--	2019-05-31 11:39
sigtrap.pm	8.53 KB	-r--r--r--	2019-05-31 11:39
sort.pm	3.82 KB	-r--r--r--	2019-05-31 11:39
strict.pm	4.63 KB	-r--r--r--	2019-05-31 11:39
subs.pm	901 B	-r--r--r--	2019-05-31 11:39
utf8.pm	10.18 KB	-r--r--r--	2019-05-31 11:39
utf8_heavy.pl	26.66 KB	-r--r--r--	2019-05-31 11:39
vars.pm	2.4 KB	-r--r--r--	2019-05-31 11:39
version.pm	1.93 KB	-r--r--r--	2019-05-31 11:39
version.pod	9.6 KB	-r--r--r--	2019-05-31 11:39
vmsish.pm	4.21 KB	-r--r--r--	2019-05-31 11:39
warnings.pm	48.82 KB	-r--r--r--	2019-05-31 11:39

Rename

package vars;

use 5.006;

our $VERSION = '1.05';

use warnings::register;
use strict qw(vars subs);

sub import {
    my $callpack = caller;
    my (undef, @imports) = @_;
    my ($sym, $ch);
    foreach (@imports) {
        if (($ch, $sym) = /^([\$\@\%\*\&])(.+)/) {
	    if ($sym =~ /\W/) {
		# time for a more-detailed check-up
		if ($sym =~ /^\w+[[{].*[]}]$/) {
		    require Carp;
		    Carp::croak("Can't declare individual elements of hash or array");
		} elsif (warnings::enabled() and length($sym) == 1 and $sym !~ tr/a-zA-Z//) {
		    warnings::warn("No need to declare built-in vars");
		} elsif  (($^H & strict::bits('vars'))) {
		    require Carp;
		    Carp::croak("'$_' is not a valid variable name under strict vars");
		}
	    }
	    $sym = "${callpack}::$sym" unless $sym =~ /::/;
	    *$sym =
		(  $ch eq "\$" ? \$$sym
		 : $ch eq "\@" ? \@$sym
		 : $ch eq "\%" ? \%$sym
		 : $ch eq "\*" ? \*$sym
		 : $ch eq "\&" ? \&$sym 
		 : do {
		     require Carp;
		     Carp::croak("'$_' is not a valid variable name");
		 });
	} else {
	    require Carp;
	    Carp::croak("'$_' is not a valid variable name");
	}
    }
};

1;
__END__

=head1 NAME

vars - Perl pragma to predeclare global variable names

=head1 SYNOPSIS

use vars qw($frob @mung %seen);

=head1 DESCRIPTION

NOTE: For use with variables in the current package for a single scope, the
functionality provided by this pragma has been superseded by C<our>
declarations, available in Perl v5.6.0 or later, and use of this pragma is
discouraged.  See L<perlfunc/our>.

This pragma will predeclare all the variables whose names are
in the list, allowing you to use them under C<use strict>, and
disabling any typo warnings for them.

Unlike pragmas that affect the C<$^H> hints variable, the C<use vars> and
C<use subs> declarations are not lexically scoped to the block they appear
in: they affect
the entire package in which they appear.  It is not possible to rescind these
declarations with C<no vars> or C<no subs>.

Packages such as the B<AutoLoader> and B<SelfLoader> that delay
loading of subroutines within packages can create problems with
package lexicals defined using C<my()>. While the B<vars> pragma
cannot duplicate the effect of package lexicals (total transparency
outside of the package), it can act as an acceptable substitute by
pre-declaring global symbols, ensuring their availability to the
later-loaded routines.

See L<perlmodlib/Pragmatic Modules>.

=cut