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.