package vars;
-require 5.002;
+use 5.006;
-# The following require can't be removed during maintenance
-# releases, sadly, because of the risk of buggy code that does
-# require Carp; Carp::croak "..."; without brackets dying
-# if Carp hasn't been loaded in earlier compile time. :-(
-# We'll let those bugs get found on the development track.
-require Carp if $] < 5.00450;
+our $VERSION = '1.01';
use warnings::register;
-require strict;
+use strict qw(vars subs);
sub import {
my $callpack = caller;
- my ($pack, @imports, $sym, $ch) = @_;
- foreach $sym (@imports) {
- ($ch, $sym) = unpack('a1a*', $sym);
+ my ($pack, @imports) = @_;
+ my ($sym, $ch);
+ foreach (@imports) {
+ ($ch, $sym) = unpack('a1a*', $_);
if ($sym =~ tr/A-Za-z_0-9//c) {
# time for a more-detailed check-up
- if ($sym =~ /::/) {
- require Carp;
- Carp::croak("Can't declare another package's variables");
- } elsif ($sym =~ /^\w+[[{].*[]}]$/) {
+ if ($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 ( $^H &= strict::bits('vars') ) {
- Carp::croak("'$ch$sym' is not a valid variable name under strict vars");
+ Carp::croak("'$_' is not a valid variable name under strict vars");
}
}
- *{"${callpack}::$sym"} =
- ( $ch eq "\$" ? \$ {"${callpack}::$sym"}
- : $ch eq "\@" ? \@ {"${callpack}::$sym"}
- : $ch eq "\%" ? \% {"${callpack}::$sym"}
- : $ch eq "\*" ? \* {"${callpack}::$sym"}
- : $ch eq "\&" ? \& {"${callpack}::$sym"}
+ $sym = "${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("'$ch$sym' is not a valid variable name");
+ Carp::croak("'$_' is not a valid variable name");
});
}
};
=head1 DESCRIPTION
-NOTE: The functionality provided by this pragma has been superseded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>.
+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+by this pragma has been superseded by C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