IRC Proxy Server/Client using Martyr:

Goals:
1) Extremely dumb client.  Should ideally know nothing about IRC.
2) Open communication protocol between proxy server and client.


Things to Think About:
Authentication
State-saving (in server) - maintain buffers/data through restarts
Client sends server a "supported subset" DTD at connect time?


<GetBufferContents
(Required)	name="string"
(Optional)	start="integer"
(Optional) 	end="integer"
/>

Sent by client to request the contents of some specified part of a named buffer.
name: Name of buffer
start: line number in buffer for beginning of content
end: line number in buffer for end of content

<BufferContents
(Required)	name="string"
(Required)	start="integer"
(Required)	end="integer"
>
list of <BufferLine> elements
</BufferContents>

Sent by server to update the contents of the client's buffer.
The list of BufferLine elements is in the order they should be shown.

<BufferLine
(Optional)	timestamp="date/time(epoch?)"
(Optional)	title="string"
>
contents of line
</BufferLine>

title: title for this line.  (name of the person that said this line?)

<BufferAppend
(Required)	name="string"
>
list of <BufferLine> elements
</BufferAppend>

Sent by the server to append a list of content lines to the client's buffer.

<BufferRemove
(Required)	name="string"
(Required)	start="integer"
(Optional)	end="integer"
/>

Sent by the server to remove a range of content lines from the client's buffer.

<ListBuffers />

Sent by the client to request a list of buffers

<BufferList>
list of <Buffer> elements
</BufferList>

Sent by the server to give the client a list of buffers

<Buffer
(Required)	name="string"
(Required)	title="string"




What about recursive buffers?
And using columns for the buffer lines?

<Buffer name="Xenocide">
	<Buffer name="content">
		<Append>
			<BufferLine timestamp="1016144552">
				<Column name="from">Xenoc</Column>
				<Column name="content">hmmm... hybrid between recursive buffers and columns</Column>
			</BufferLine>
		</Append>
	</Buffer>
</Buffer>

http://java.sun.com/xml/jaxp/dist/1.1/docs/tutorial/sax/5a_dtd.html