Re^4: How can I get a Unicode @ARGV?

[exilepanda]

In cp950: dir/b It shows the files with unicode char correctly. However, dir/b > list.txt the content inside list turns into "????"

In cp65001: dir/b It shows the files with monster char. However, dir/b > list.txt gives the correct list.

Most confused me is that when you can see the String right, it doesn't mean the Data is right, vice versa. And I actually have no idea why Unicode chars can show correctly when dir (or drop a file path in the cmd console) in cp950, but then can't manipulate(@ARGV) later.

[remiah]

Hello.


Can you do this ? or not ?

1. Paste the function below into your script.
2. This will ouput encoding information of $ARGV[0] to logfile.txt


troubled_string($ARGV[0], "logfile.txt");

3. Examine logfile.txt with your browser, and find normal string, changing "Encodings" of your browser.


sub troubled_string{
    my ($str,$logfile_path)=@_;

    use Encode qw(decode encode from_to encodings);
    open (my $fh, ">", $logfile_path) or die $!;

    printf $fh "utf8 flag:%s\n",utf8::is_utf8($str) ? "utf8 flagged" :
+ "not utf8 flagged";
    printf $fh "hexdump:[%s]\n",utf8::is_utf8($str) ? unpack('U0H*', $
+str):unpack('H*', $s
tr);
    printf $fh "length:[%s]\n", length($str);
    printf $fh "%s\n", "-" x 20;

    if ( utf8::is_utf8($str) ){
        printf $fh "[encode trial]\n";
        printf $fh "%-25s:%s\n",$_,encode($_, $str) for (Encode->encod
+ings(":all"));
    } else {
        printf $fh "[decode -> encode trial]\n";
        printf $fh "%-25s:%s\n",$_,encode($_, decode($_,$str)) for (En
+code->encodings(":all"));
    }
    close $logfile_path;
}

What does it say?

[nikosv]

the 'dir' command in Win cmd works in Unicode regardless the code page;it's one of those Windows quirks.Go ahead change the code page to eg Cyrillic and try it out,you'll get the same result

In cp950: dir/b It shows the files with Unicode char correctly. However, dir/b > list.txt the content inside list turns into "????"

Is list.txt saved as ANSI (default)?. Save list.txt as Unicode and try again

In cp65001: dir/b It shows the files with monster char. However, dir/b > list.txt gives the correct list.

I guess cp65001 sets the file i/o to Unicode,that is why you see list.txt with correct list what is a monster char? maybe a font issue? what font are you using, Lucida Console?