I'm implementing an application which will extract information about computer parts and their prices from several websites. As most of them use awful (from parsers view) HTML, I'll have to use some sort of format description, which will then be used by HTML parser to extract data. I thought about using XML for this purpose. Something like: 
<sites>
    <site>
        <name>Ralinga</name>
        <url>http://www.ralinga.lt/</url>
        
        <pages>
            <info type="memory">/kainos/index.php?rodyti=ram</info>
            <info type="processor">/kainos/index.php?rodyti=cpu</info>
        </pages>
        
        <regexp type="get_after">
            <extract type="info">TD class=kain width=500</extract>
            <extract type="price">TD class=kain align=middle width=100
+</extract>
        </regexp>
        
    </site>

[download]
As this is my first data mining project maybe fellow monks could comment on correctness of this approach?

In reply to Data mining by karmas

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