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CPAN	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Carp	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
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Devel	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Digest	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Encode	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Exporter	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
ExtUtils	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
File	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Filter	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Getopt	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
HTTP	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
I18N	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
IO	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
IPC	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
JSON	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Locale	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Math	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Memoize	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Module	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Net	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Params	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Parse	[ DIR ]	drwxr-xr-x	2025-08-05 17:02
Perl	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
PerlIO	[ DIR ]	drwxr-xr-x	2025-08-05 17:02
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Term	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
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Test2	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Text	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Thread	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Tie	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Time	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
Unicode	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
User	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
autodie	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
encoding	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
overload	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
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version	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
warnings	[ DIR ]	drwxr-xr-x	2026-06-26 06:22
AnyDBM_File.pm	2.56 KB	-rw-r--r--	2026-06-12 13:42
AutoLoader.pm	15.43 KB	-rw-r--r--	2026-06-12 13:42
AutoSplit.pm	19.18 KB	-rw-r--r--	2026-06-12 13:42
Benchmark.pm	30.3 KB	-rw-r--r--	2026-06-12 13:42
CORE.pod	3.11 KB	-rw-r--r--	2026-06-12 13:42
CPAN.pm	144.5 KB	-rw-r--r--	2026-06-12 13:42
Carp.pm	35.15 KB	-rw-r--r--	2026-06-12 13:42
DB.pm	18.48 KB	-rw-r--r--	2026-06-12 13:42
DBM_Filter.pm	14.05 KB	-rw-r--r--	2026-06-12 13:42
Digest.pm	10.96 KB	-rw-r--r--	2026-06-12 13:42
DirHandle.pm	2.04 KB	-rw-r--r--	2026-06-12 13:42
Dumpvalue.pm	17.25 KB	-rw-r--r--	2026-06-12 13:42
English.pm	4.65 KB	-rw-r--r--	2026-06-12 13:42
Env.pm	5.44 KB	-rw-r--r--	2026-06-12 13:42
Exporter.pm	18.76 KB	-rw-r--r--	2026-06-12 13:42
Fatal.pm	57.85 KB	-rw-r--r--	2026-06-12 13:42
FileCache.pm	5.42 KB	-rw-r--r--	2026-06-12 13:42
FileHandle.pm	6.65 KB	-rw-r--r--	2026-06-12 13:42
FindBin.pm	4.51 KB	-rw-r--r--	2026-06-12 13:42
Internals.pod	2.51 KB	-rw-r--r--	2026-06-12 13:42
Memoize.pm	31.82 KB	-rw-r--r--	2026-06-12 13:42
NEXT.pm	18.54 KB	-rw-r--r--	2026-06-12 13:42
PerlIO.pm	13.92 KB	-rw-r--r--	2026-06-12 13:42
Safe.pm	24.76 KB	-rw-r--r--	2026-06-12 13:42
SelectSaver.pm	1.05 KB	-rw-r--r--	2026-06-12 13:42
SelfLoader.pm	17.27 KB	-rw-r--r--	2026-06-12 13:42
Symbol.pm	4.79 KB	-rw-r--r--	2026-06-12 13:42
Test.pm	29.34 KB	-rw-r--r--	2026-06-12 13:42
Test2.pm	6.24 KB	-rw-r--r--	2026-06-12 13:42
Thread.pm	8.09 KB	-rw-r--r--	2026-06-12 13:42
UNIVERSAL.pm	6.67 KB	-rw-r--r--	2026-06-12 13:42
XSLoader.pm	11.13 KB	-rw-r--r--	2026-06-12 13:42
_charnames.pm	34.84 KB	-rw-r--r--	2026-06-12 13:42
autodie.pm	12.14 KB	-rw-r--r--	2026-06-12 13:42
autouse.pm	4.14 KB	-rw-r--r--	2026-06-12 13:42
base.pm	10.7 KB	-rw-r--r--	2026-06-12 13:42
bigfloat.pm	21.45 KB	-rw-r--r--	2026-06-12 13:42
bigint.pm	22.7 KB	-rw-r--r--	2026-06-12 13:42
bignum.pm	27.56 KB	-rw-r--r--	2026-06-12 13:42
bigrat.pm	20.64 KB	-rw-r--r--	2026-06-12 13:42
blib.pm	2.01 KB	-rw-r--r--	2026-06-12 13:42
builtin.pm	10.15 KB	-rw-r--r--	2026-06-12 13:42
bytes.pm	3.69 KB	-rw-r--r--	2026-06-12 13:42
bytes_heavy.pl	758 B	-rw-r--r--	2026-06-12 13:42
charnames.pm	20.56 KB	-rw-r--r--	2026-06-12 13:42
constant.pm	14.38 KB	-rw-r--r--	2026-06-12 13:42
deprecate.pm	4.92 KB	-rw-r--r--	2026-06-12 13:42
diagnostics.pm	18.88 KB	-rw-r--r--	2026-06-12 13:42
dumpvar.pl	15.19 KB	-rw-r--r--	2026-06-12 13:42
experimental.pm	8.72 KB	-rw-r--r--	2026-06-12 13:42
feature.pm	53.32 KB	-rw-r--r--	2026-06-12 13:42
fields.pm	9.25 KB	-rw-r--r--	2026-06-12 13:42
filetest.pm	3.91 KB	-rw-r--r--	2026-06-12 13:42
if.pm	3.55 KB	-rw-r--r--	2026-06-12 13:42
integer.pm	3.18 KB	-rw-r--r--	2026-06-12 13:42
less.pm	3.13 KB	-rw-r--r--	2026-06-12 13:42
locale.pm	4.77 KB	-rw-r--r--	2026-06-12 13:42
meta_notation.pm	2.02 KB	-rw-r--r--	2026-06-12 13:42
ok.pm	967 B	-rw-r--r--	2026-06-12 13:42
open.pm	8.3 KB	-rw-r--r--	2026-06-12 13:42
overload.pm	53.44 KB	-rw-r--r--	2026-06-12 13:42
overloading.pm	1.77 KB	-rw-r--r--	2026-06-12 13:42
parent.pm	2.64 KB	-rw-r--r--	2026-06-12 13:42
perl5db.pl	310.13 KB	-rw-r--r--	2026-06-12 13:42
perlfaq.pm	77 B	-rw-r--r--	2026-06-12 13:42
sigtrap.pm	8.53 KB	-rw-r--r--	2026-06-12 13:42
sort.pm	2.92 KB	-rw-r--r--	2026-06-12 13:42
stable.pm	4.55 KB	-rw-r--r--	2026-06-12 13:42
strict.pm	4.67 KB	-rw-r--r--	2026-06-12 13:42
subs.pm	945 B	-rw-r--r--	2026-06-12 13:42
utf8.pm	10.63 KB	-rw-r--r--	2026-06-12 13:42
vars.pm	2.4 KB	-rw-r--r--	2026-06-12 13:42
version.pm	1.93 KB	-rw-r--r--	2026-06-12 13:42
version.pod	9.6 KB	-rw-r--r--	2026-06-12 13:42
vmsish.pm	4.21 KB	-rw-r--r--	2026-06-12 13:42
warnings.pm	55.73 KB	-rw-r--r--	2026-06-12 13:42

Rename

package locale;

use strict;
use warnings;

our $VERSION = '1.10';
use Config;

$Carp::Internal{ (__PACKAGE__) } = 1;

=head1 NAME

locale - Perl pragma to use or avoid POSIX locales for built-in operations

=head1 WARNING

DO NOT USE this pragma in scripts that have multiple
L<threads|threads> active.  The locale is not local to a single thread.
Another thread may change the locale at any time, which could cause at a
minimum that a given thread is operating in a locale it isn't expecting
to be in.  On some platforms, segfaults can also occur.  The locale
change need not be explicit; some operations cause perl to change the
locale itself.  You are vulnerable simply by having done a C<"use
locale">.

=head1 SYNOPSIS

@x = sort @y;      # Native-platform/Unicode code point sort order
    {
        use locale;
        @x = sort @y;  # Locale-defined sort order
    }
    @x = sort @y;      # Native-platform/Unicode code point sort order
                       # again

=head1 DESCRIPTION

This pragma tells the compiler to enable (or disable) the use of POSIX
locales for built-in operations (for example, LC_CTYPE for regular
expressions, LC_COLLATE for string comparison, and LC_NUMERIC for number
formatting).  Each "use locale" or "no locale"
affects statements to the end of the enclosing BLOCK.

See L<perllocale> for more detailed information on how Perl supports
locales.

On systems that don't have locales, this pragma will cause your operations
to behave as if in the "C" locale; attempts to change the locale will fail.

=cut

# A separate bit is used for each of the two forms of the pragma, to save
# having to look at %^H for the normal case of a plain 'use locale' without an
# argument.

$locale::hint_bits = 0x4;
$locale::partial_hint_bits = 0x10;  # If pragma has an argument

# The pseudo-category :characters consists of 2 real ones; but it also is
# given its own number, -1, because in the complement form it also has the
# side effect of "use feature 'unicode_strings'"

sub import {
    shift;  # should be 'locale'; not checked

$^H{locale} = 0 unless defined $^H{locale};
    if (! @_) { # If no parameter, use the plain form that changes all categories
        $^H |= $locale::hint_bits;

}
    else {
        my @categories = ( qw(:ctype :collate :messages
                              :numeric :monetary :time) );
        for (my $i = 0; $i < @_; $i++) {
            my $arg = $_[$i];
            my $complement = $arg =~ s/ : ( ! | not_ ) /:/x;
            if (! grep { $arg eq $_ } @categories, ":characters") {
                require Carp;
                Carp::croak("Unknown parameter '$_[$i]' to 'use locale'");
            }

if ($complement) {
                if ($i != 0 || $i < @_ - 1)  {
                    require Carp;
                    Carp::croak("Only one argument to 'use locale' allowed"
                                . "if is $complement");
                }

if ($arg eq ':characters') {
                    push @_, grep { $_ ne ':ctype' && $_ ne ':collate' }
                                  @categories;
                    # We add 1 to the category number;  This category number
                    # is -1
                    $^H{locale} |= (1 << 0);
                }
                else {
                    push @_, grep { $_ ne $arg } @categories;
                }
                next;
            }
            elsif ($arg eq ':characters') {
                push @_, ':ctype', ':collate';
                next;
            }

$^H |= $locale::partial_hint_bits;

# This form of the pragma overrides the other
            $^H &= ~$locale::hint_bits;

$arg =~ s/^://;

eval { require POSIX; import POSIX 'locale_h'; };

# Map our names to the ones defined by POSIX
            my $LC = "LC_" . uc($arg);

my $bit = eval "&POSIX::$LC";
            if (defined $bit) { # XXX Should we warn that this category isn't
                                # supported on this platform, or make it
                                # always be the C locale?

# Verify our assumption.
                if (! ($bit >= 0 && $bit < 31)) {
                    require Carp;
                    Carp::croak("Cannot have ':$arg' parameter to 'use locale'"
                              . " on this platform.  Use the 'perlbug' utility"
                              . " to report this problem, or send email to"
                              . " 'perlbug\@perl.org'.  $LC=$bit");
                }

# 1 is added so that the pseudo-category :characters, which is
                # -1, comes out 0.
                $^H{locale} |= 1 << ($bit + 1);
            }
        }
    }

}

sub unimport {
    $^H &= ~($locale::hint_bits|$locale::partial_hint_bits);
    $^H{locale} = 0;
}