If you're interested in prior-art, here's an example of the XML interface
for our discussion group software.
At 09:23 AM 2/3/99 +1100, you wrote:
>Below is a DTD used as an example in Tim Bray's BEYOND HTML: XML AND
>AUTOMATED WEB PROCESSING
>I'm sure there would be a lot more out there!
><!element email (head, body)>
><!element head (from, to+, cc*, subject)>
><!element from (name?, address)>
><!element to (name?, address)>
><!element name (#PCDATA)>
><!element address (#PCDATA)>
><!element subject (#PCDATA)>
><!element body (p | attach)*>
><!element p (#PCDATA)>
><!element attach EMPTY>
><!attlist attach encoding (mime|binhex) "mime"
> name CDATA #REQUIRED>
>From: Paul Erion <[log in to unmask]>
>To: [log in to unmask] <[log in to unmask]>
>Date: Wednesday, 3 February 1999 5:03
>Subject: DTD for email messages
>>Does anyone know where I might find [or look for] a DTD for email messages?
>>p.s., I just subscribed to this group so that I might ask the above
>>question ... if the question is inappropriate for this group please feel
>>free to let me know.