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package Path::Class::Unicode;
use strict;
use 5.008_001;
our $VERSION = '0.08';
use Exporter::Lite;
our @EXPORT = qw( ufile udir ufile_from_uri udir_from_uri );
use Encode ();
use Path::Class;
use URI::file;
use Scalar::Util qw(blessed);
sub ufile {
__PACKAGE__->new(file(@_));
}
sub udir {
__PACKAGE__->new(dir(@_));
}
sub Path::Class::File::ufile {
my $file = shift;
ufile(_decode_filename($file), @_);
}
sub Path::Class::Dir::udir {
my $dir = shift;
udir(_decode_filename($dir), @_);
}
sub ufile_from_uri {
my $uri = shift;
$uri = URI->new($uri) unless blessed $uri;
if ($^O eq "MSWin32") {
ufile(Encode::decode_utf8($uri->file('win32')));
} else {
ufile(Encode::decode_utf8($uri->file('unix')));
}
}
sub udir_from_uri {
my $uri = shift;
$uri = URI->new($uri) unless blessed $uri;
if ($^O eq "MSWin32") {
udir(Encode::decode_utf8($uri->file('win32')));
} else {
udir(Encode::decode_utf8($uri->file('unix')));
}
}
sub new {
my($class, $path) = @_;
bless { path => $path }, $class;
}
sub uri {
my $self = shift;
my $path = Encode::encode_utf8($self->{path}->stringify);
$path =~ tr!\\!/! if $^O eq "MSWin32";
if ($self->is_absolute) {
return URI->new("file://$path");
} else {
return URI->new("file:$path");
}
}
our $encoding;
sub init_encoding {
unless ($encoding) {
$encoding = 'utf-8';
if ($^O eq 'MSWin32') {
eval {
require Win32::API;
Win32::API->Import('kernel32', 'UINT GetACP()');
$encoding = 'cp'.GetACP();
};
}
}
}
sub stringify {
my $self = shift;
init_encoding();
Encode::encode($encoding, $self->{path}->stringify);
}
sub _decode_filename {
init_encoding();
my $filename = shift;
Encode::decode($encoding, "$filename");
}
sub open {
my $self = shift;
my $class = $self->is_dir ? "IO::Dir" : "IO::File";
$class->new($self->stringify, @_);
}
sub next {
my $self = shift;
$self->{path}->{dh} = $self->open unless $self->{path}->{dh};
local *IO::Dir::read = sub { Encode::decode $encoding, readdir shift };
ufile($self->{path}->next);
}
sub children {
my ($self, %opts) = @_;
$self->{path}->{dh} = $self->open unless $self->{path}->{dh};
my @out;
while (my $entry = $self->{path}->{dh}->read) {
# XXX What's the right cross-platform way to do this?
next if (!$opts{all} && ($entry eq '.' || $entry eq '..'));
push @out, $self->file($entry);
$out[-1] = $self->subdir($entry) if -d $out[-1];
}
return @out;
}
use overload (
q[""] => 'stringify',
fallback => 1,
);
our $AUTOLOAD;
sub AUTOLOAD {
my $self = shift;
(my $method = $AUTOLOAD) =~ s/.*:://;
$self->{path}->$method(@_);
}
sub DESTROY { }
1;
__END__
=encoding utf-8
=for stopwords TODO UTF-8 filenames cp932 mattn
=head1 NAME
Path::Class::Unicode - Maps Unicode filenames to local encoding and code pages
=head1 SYNOPSIS
use Path::Class::Unicode;
# Use ufile() to create Unicode objects
my $fn = "\x{55ed}.txt";
my $file = ufile("path", $fn);
my $fh = $file->open;
my $fn = "\x{55ed}.txt";
my $file = ufile("/path", $fn);
my $uri = $file->uri; # file:///path/%E5%97%AD.txt (always utf-8)
my $fh = ufile_from_uri($uri)->open;
=head1 DESCRIPTION
Path::Class::Unicode is a Path::Class extension to handle Unicode
file names by mapping them to local encodings when stringified. It maps
to UTF-8 for all UNIX systems including Mac OS X and uses Windows code
page (like cp932 for Japanese) in Win32 systems.
It's very useful if you store file paths using URI representation like
L<file://> and uses URI escaped UTF-8 characters for non-ASCII
characters. See L<Path::Class::URI> for details.
=head1 TODO
It would be nice if we could proxy filehandles using Win32API::File.
=head1 AUTHOR
Tatsuhiko Miyagawa E<lt>miyagawa@cpan.orgE<gt>
mattn
=head1 LICENSE
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=head1 SEE ALSO
=cut
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