NAME utf8::all - turn on Unicode - all of it VERSION version 0.015 SYNOPSIS use utf8::all; # Turn on UTF-8, all of it. # Also provide UTF-8 versions of functions from... use utf8::all qw(File::Find); # File::Find use utf8::all qw(Cwd); # Cwd use utf8::all qw(:all); # everything 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 * glob and the "<>" operator Import options If you provide the "File::Find" or "Cwd" options to the "use utf8::all" line, those modules are loaded if they haven't been already, but you will get UTF-8-ified versions instead of the normal ones. This effect is lexical. File::Find "find" and "finddepth" Cwd "cwd", "fastcwd", "getcwd", "fastgetcwd" "abs_path", "realpath", "fast_abs_path" Use "use utf8::all qw(:all)" to get all of these, plus whatever we dream up in the future. 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! 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 . Otherwise, autodie obliterates the IO layers set by the open pragma. See RT #54777 and GH #7 . AVAILABILITY The project homepage is . The latest version of this module is available from the Comprehensive Perl Archive Network (CPAN). Visit to find a CPAN site near you, or see . SOURCE The development version is on github at and may be cloned from BUGS AND LIMITATIONS You can make new bug reports, and view existing ones, through the web interface at . AUTHORS * Michael Schwern * Mike Doherty COPYRIGHT AND LICENSE This software is copyright (c) 2009 by Michael Schwern . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.