Yes, unfortunately my experience so far seems to bear this out. After mucking around for a while I came up with the following code, which doesn't really solve anything but perhaps may inspire one wiser than me to share a better solution...
use warnings;
use strict;
use PPM::Repositories;
use Encode::Guess;
# OS Call on German WinXP
my $result = `ping -n 1 jenda.krinicky.cz ` . "\n";
my $encoding;
#works, as expected.
print "cp437:\n";
$encoding = guess_encoding_cp437($result);
if ( ref( $encoding ) ) {
test_ping_result($result, $encoding->name);
} else {
print "Couldn't guess encoding.\n";
}
#doesn't work
print "default:\n";
$encoding = guess_encoding_default($result);
if ( ref( $encoding ) ) {
test_ping_result($result, $encoding->name);
} else {
print "Couldn't guess encoding.\n";
}
#doesn't work.
print "kitchen sink:\n";
$encoding = guess_encoding_default($result);
if ( ref( $encoding ) ) {
test_ping_result($result, $encoding->name);
} else {
print "Couldn't guess encoding.\n";
}
sub test_ping_result {
my $result = shift;
my $encoding = shift;
Encode::from_to($result,"$encoding",'iso-8859-1');
print "encoding: $encoding\n";
print "result: $result\n";
if ($result =~ /Überprüfen/) { # should match but fails because of
+ german characters
print "Ping timed out \n";
} else {
#good repository.
print "Ping ok \n";
}
}
sub guess_encoding_cp437 {
my $data = shift;
my $enc = guess_encoding($data, ('cp437'));
return $enc;
}
sub guess_encoding_default {
my $data = shift;
my $enc = guess_encoding($data);
return $enc;
}
sub guess_encoding_kitchen_sink {
my $data = shift;
my $enc = guess_encoding($data, ( Encode->encodings() ) );
return $enc;
}
__END__
Outputs:
cp437:
encoding: cp437
result: Ping-Anforderung konnte Host "jenda.krinicky.cz" nicht finden.
+ Überprüfen Sie den Namen, und versuchen Sie es erneut.
Ping timed out
default:
Couldn't guess encoding.
kitchen sink:
Couldn't guess encoding.
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