sub parse_amazon {
    my ( $text, $ashash ) = @_;
    return undef if $text =~ /Books search: we were unable to find exact matches/i;
    my ( $title ) = $text =~ /^Amazon.com: buying info: (.*)$/im;
    my ( $pages ) = $text =~ m:(\d+) pages:;
    my ( $price ) = $text =~ m:<strike>\$([\d\.]+)</strike>:;
    my ( $publisher ) = $text =~ m:\n\s+([^;\n]+);[\s\n]+ISBN:isg;
    my ( $author ) = $text =~ m:\nby <a href=[^>]+>(.*?)</font>:s;
    $author =~ s/<.*?>//sg; $author =~ s/\([^\)]+\)//g; chomp $author;
    my @authors = split /\s*,\s*/,$author; $"=", "; chomp @authors;  #"
    return "$title\n by @authors\n $pages pages, \$$price\n $publisher\n" unless $ashash;
    return { title => $title, author => $authors[0], author2 => $authors[1], author3 => $authors[2],
             pages  => $pages, price => $price*$DOLLAR, publisher => $publisher }
}