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How do i write a filter

To: "'namazu-users-en@namazu.org'" <namazu-users-en@namazu.org>
Subject: How do i write a filter
From: "Johansen, Vagn" <vagn.johansen@intel.com>
Date: Tue, 28 Nov 2000 01:25:20 -0800
Reply-to: namazu-users-en@namazu.org
Message-id: <CD4DE0181670D211AC5400A0C94BD1B801D8D9A6@dksmsx30.idk.intel.com>

Are there any plans for updating the english documentation. if so
I would like to know how to write a filter. I have a few plugins I want to
convert
which I wrote for my own simple text indexer. They have the form seen below.

# input: a filename
# output: undef on failure, otherwise a hash ref with the keys: title, desc,
text
sub textualize_mp3
{
    my $href = mp3_info($_[0]); 

    return undef unless (defined $href);

    my $temp = "$href->{title}\n$href->{artist}\n$href->{album}";
    return {
            title => $href->{artist}.' "'.$href->{title}.'" ',
            desc =>  $temp, # description
            text =>  "$temp\n$href->{year}\n$href->{comment} music mp3",
           };
}       

Vagn Johansen



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