package vars;
-require 5.002;
+use 5.006;
-our $VERSION = '1.00';
-
-# 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) = @_;
my ($sym, $ch);
foreach (@imports) {
+ # TODO: UTF-8 names: (the unpack is quite wrong,
+ # /^(.)(.*)/ would probably be better.) While you
+ # are at it, until declaring empty package is made
+ # to work the * is too lenient.
($ch, $sym) = unpack('a1a*', $_);
if ($sym =~ tr/A-Za-z_0-9//c) {
# time for a more-detailed check-up
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 ( $^H &= strict::bits('vars') ) {
- Carp::croak("'$_' is not a valid variable name under strict vars");
+ } elsif (($^H &= strict::bits('vars'))) {
+ # TODO: UTF-8 names: be careful to load the UTF-8
+ # machinery only if the symbol requires it.
+ require Carp;
+ Carp::croak("'$_' is not a valid variable name under strict vars");
}
}
$sym = "${callpack}::$sym" unless $sym =~ /::/;
pre-declaring global symbols, ensuring their availability to the
later-loaded routines.
+The C<use vars> does not work for UTF-8 variable names.
+
See L<perlmodlib/Pragmatic Modules>.
=cut