Dear fellow monks

i'm trying to use perl(5.8) + dbi(1.37) + dbd::mysql(2.1026) + mysql(4.1.0-alpha) with unicode.

as far as i can tell i can write a utf8 string into the database, and get back the same sequence of bits, only now it's a 'classical' perl-string, not flagged as utf-8.

the string i write into the db is 6 characters long: "ABc\N{greek:alpha}\x{00df}\N{cyrillic:e}" 

    character           unicode utf8
                        hex     binary

    A                   0041    01000001
    B                   0042    01000010
    c                   0063    01100011
    greep alpha         03B1    1100111010110001
    german scharfes s   00DF    1100001110011111
    cyrrillic e         044D    1101000110001101
what i get back from the db is 
    A                           01000001
    B                           01000010
    c                           01100011
    ?                           11001110
    ?                           10110001
    ?                           11000011
    ?                           00111111
    ?                           11010001
    ?                           00111111

I have tried to convert this using $new = decode_utf8( $fromdb ); but all i get is an empty string. is there some way to find out why this won't decode?

or is my debugging stuff that shows me the bits in the string just wrong: 


sub showbits
{
    my ($template, $utf, $result, $i);
    $utf =  is_utf8  $_[0];
    $template = $utf ? "U*" : "C*";
    foreach ( unpack($template, $_[0] ) )
    {
        $result .= "\n" ;
        $result .= substr( $_[0], $i, 1 ) . "=";
        $result .= sprintf ("%04X", $_) .  "=";
        if ( $utf and $_ > 127) {
                $b = unpack("B*", substr( $_[0], $i, 1 ));
        }
        else {
                $b = unpack("B*", pack("N", $_ ));
        }
        $b =~ s/^0{32}//;  # leading zeros
        $b =~ s/^0{16}//;
        $b =~ s/^0{8}//;
        $result .= $b;
        $i++;
    }
    return $result;
}

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--
Brigitte    'I never met a chocolate I didnt like'    Jellinek
http://www.horus.com/~bjelli/         http://perlwelt.horus.at

In reply to unicode (and mysql) by bjelli

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