NAME
    utf8::all - turn on Unicode - all of it

VERSION
    version 0.016

SYNOPSIS
        use utf8::all;                # Turn on UTF-8, all of it.

        open my $in, '<', 'contains-utf8';  # UTF-8 already turned on here
        print length 'føø bār';             # 7 UTF-8 characters
        my $utf8_arg = shift @ARGV;         # @ARGV is UTF-8 too (only for main)

DESCRIPTION
    utf8 allows you to write your Perl encoded in UTF-8. That means UTF-8
    strings, variable names, and regular expressions.

    "utf8::all" goes further:

    *   Makes @ARGV encoded in UTF-8 (when "utf8::all" is used from the main
        package).

    *   Filehandles are opened with UTF-8 encoding turned on by default
        (including STDIN, STDOUT, STDERR). If you *don't* want UTF-8 for a
        particular filehandle, you'll have to set "binmode $filehandle".

    *   charnames are imported so "\N{...}" sequences can be used to compile
        Unicode characters based on names.

    *   readdir now returns UTF-8 characters instead of bytes.

    *   glob and the "<>" operator now return UTF-8 characters instead of
        bytes.

  Lexical scope
    The pragma is lexically-scoped, so you can do the following if you had
    some reason to:

        {
            use utf8::all;
            open my $out, '>', 'outfile';
            my $utf8_str = 'føø bār';
            print length $utf8_str, "\n"; # 7
            print $out $utf8_str;         # out as utf8
        }
        open my $in, '<', 'outfile';      # in as raw
        my $text = do { local $/; <$in>};
        print length $text, "\n";         # 10, not 7!

SEE ALSO
    *   File::Find::utf8 for fully utf-8 aware File::Find functions.

    *   Cwd::utf8 for fully utf-8 aware Cwd functions.

INTERACTION WITH AUTODIE
    If you use autodie, which is a great idea, you need to use at least
    version 2.12, released on June 26, 2012
    <https://metacpan.org/source/PJF/autodie-2.12/Changes#L3>. Otherwise,
    autodie obliterates the IO layers set by the open pragma. See RT #54777
    <https://rt.cpan.org/Ticket/Display.html?id=54777> and GH #7
    <https://github.com/doherty/utf8-all/issues/7>.

AVAILABILITY
    The project homepage is <http://metacpan.org/release/utf8-all/>.

    The latest version of this module is available from the Comprehensive
    Perl Archive Network (CPAN). Visit <http://www.perl.com/CPAN/> to find a
    CPAN site near you, or see <https://metacpan.org/module/utf8::all/>.

SOURCE
    The development version is on github at
    <http://github.com/doherty/utf8-all> and may be cloned from
    <git://github.com/doherty/utf8-all.git>

BUGS AND LIMITATIONS
    You can make new bug reports, and view existing ones, through the web
    interface at <https://github.com/doherty/utf8-all/issues>.

COMPATIBILITY
    The filesystems of Dos, Windows, and OS/2 do not (fully) support UTF-8.
    The "readdir" function and "glob" operators will therefore not be
    replaced on these systems.

AUTHORS
    *   Michael Schwern <mschwern@cpan.org>

    *   Mike Doherty <doherty@cpan.org>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2009 by Michael Schwern
    <mschwern@cpan.org>.

    This is free software; you can redistribute it and/or modify it under
    the same terms as the Perl 5 programming language system itself.