/usr/share/perl/5.26.1/strict.pm is in perl-modules-5.26 5.26.1-6ubuntu0.3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | package strict;
$strict::VERSION = "1.11";
my ( %bitmask, %explicit_bitmask );
BEGIN {
# Verify that we're called correctly so that strictures will work.
# Can't use Carp, since Carp uses us!
# see also warnings.pm.
die sprintf "Incorrect use of pragma '%s' at %s line %d.\n", __PACKAGE__, +(caller)[1,2]
if __FILE__ !~ ( '(?x) \b '.__PACKAGE__.' \.pmc? \z' )
&& __FILE__ =~ ( '(?x) \b (?i:'.__PACKAGE__.') \.pmc? \z' );
%bitmask = (
refs => 0x00000002,
subs => 0x00000200,
vars => 0x00000400,
);
%explicit_bitmask = (
refs => 0x00000020,
subs => 0x00000040,
vars => 0x00000080,
);
my $bits = 0;
$bits |= $_ for values %bitmask;
my $inline_all_bits = $bits;
*all_bits = sub () { $inline_all_bits };
$bits = 0;
$bits |= $_ for values %explicit_bitmask;
my $inline_all_explicit_bits = $bits;
*all_explicit_bits = sub () { $inline_all_explicit_bits };
}
sub bits {
my $bits = 0;
my @wrong;
foreach my $s (@_) {
if (exists $bitmask{$s}) {
$^H |= $explicit_bitmask{$s};
$bits |= $bitmask{$s};
}
else {
push @wrong, $s;
}
}
if (@wrong) {
require Carp;
Carp::croak("Unknown 'strict' tag(s) '@wrong'");
}
$bits;
}
sub import {
shift;
$^H |= @_ ? &bits : all_bits | all_explicit_bits;
}
sub unimport {
shift;
if (@_) {
$^H &= ~&bits;
}
else {
$^H &= ~all_bits;
$^H |= all_explicit_bits;
}
}
1;
__END__
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