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PATH: usr / share / perl5

package vars;

use 5.006;

our $VERSION = '1.02';

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 (obsolete)

=head1 SYNOPSIS

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

=head1 DESCRIPTION

NOTE: For variables in the current package, the functionality provided
by this pragma has been superseded by C<our> declarations, available
in Perl v5.6.0 or later.  See L<perlfunc/our>.

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

Unlike pragmas that affect the C<$^H> hints variable, the C<use vars> and
C<use subs> declarations are not BLOCK-scoped.  They are thus effective
for the entire file in which they appear.  You may not rescind such
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

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[+] warnings
[+] Perl
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[+] Compress
[-] fields.pm [edit]
[-] SelectSaver.pm [edit]
[+] vendor_perl
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[-] Safe.pm [edit]
[+] HTTP
[+] B
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[+] Memoize
[-] SelfLoader.pm [edit]
[-] overloading.pm [edit]
[-] bigrat.pm [edit]
[+] Config
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[+] ..
[+] IPC
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[+] File
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[-] strict.pm [edit]
[+] IO
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[+] DBM_Filter
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[-] lwpcook.pod [edit]
[-] less.pm [edit]
[+] Pod
[+] Archive
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[+] Object
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[+] Tie
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[+] PerlIO
[-] if.pm [edit]
[+] pod
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[-] subs.pm [edit]
[+] Encode
[+] Filter
[+] CPAN
[+] unicore
[+] Devel
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[+] Unicode
[+] Test
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[+] Term
[+] overload
[-] FindBin.pm [edit]
[+] Attribute
[-] open.pm [edit]
[-] sigtrap.pm [edit]
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[-] vars.pm [edit]
[-] AutoSplit.pm [edit]
[-] FileHandle.pm [edit]
[-] base.pm [edit]
[-] PerlIO.pm [edit]
[+] Time
[+] Text
[-] English.pm [edit]
[+] Getopt
[+] ExtUtils
[+] URI
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[+] Package
[+] Thread
[-] DBM_Filter.pm [edit]
[-] _charnames.pm [edit]
[-] warnings.pm [edit]
[-] feature.pm [edit]
[+] LWP
[-] integer.pm [edit]
[+] Module
[+] encoding
[-] Thread.pm [edit]
[-] AnyDBM_File.pm [edit]
[+] User
[-] dumpvar.pl [edit]
[+] Log
[-] Dumpvalue.pm [edit]
[-] bigint.pm [edit]
[+] Search
[+] I18N
[+] Class
[-] URI.pm [edit]
[-] autouse.pm [edit]
[-] perlfaq.pm [edit]
[-] locale.pm [edit]
[-] bytes.pm [edit]
[+] Math
[-] DB.pm [edit]
[-] FileCache.pm [edit]
[+] JSON
[-] overload.pm [edit]
[-] charnames.pm [edit]
[+] App
[-] perl5db.pl [edit]
[+] Locale
[-] UNIVERSAL.pm [edit]