To be more clear, I meant my request in the context of Cabal & Hackage.  I'd like to give a comma-separated list of categories (tags) in my .cabal, register it with Hackage, and have my package show up under each named category in 
<a href="http://hackage.haskell.org/packages/archive/pkg-list.html">http://hackage.haskell.org/packages/archive/pkg-list.html</a> .<br><br>&nbsp; - Conal<br><br><div><span class="gmail_quote">On 1/15/07, <b class="gmail_sendername">
Conal Elliott</b> &lt;<a href="mailto:conal@conal.net">conal@conal.net</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
How about multiple categories (i.e., tags) rather than single categories for libraries?&nbsp; - Conal<br>

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