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Re: XCond: towards an XML version of conditional inclusion

• From: John Cowan <cowan@l...>
• To: XML Dev <xml-dev@i...>
• Date: Tue, 02 Jun 1998 16:43:08 -0400

Tim Bray wrote:

> UNLESS could be replaced by a negation attribute or simply dropped
> and leave that up to the expression.  Not sure if that's an improvement
> or not.

It's nice to be able to say what a string shouldn't be, when there's
no evaluator available: i.e. include *unless* these two strings
match.  Making it a different attribute is basically just factoring
the XCond:type attribute; Occam says, make it a single attribute.

> But I'm pretty sure it be nice to have a fall-through
> default, i.e.
> 
> <SELECT XCond:value="xx">
>   <WHEN>...</WHEN>
>   <WHEN>...</WHEN>
>   <WHEN>...</WHEN>
>   <OTHERWISE> if none of them works </OTHERWISE>
>   </SELECT>

A good idea.  Next draft (like, tomorrow).

> Also, I'd put the examples *first*, the formalism later -Tim

I'll make a hyperlink at the top.

-- 
John Cowan	http://www.ccil.org/~cowan		cowan@c...
	You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
	You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
		Clear all so!  'Tis a Jute.... (Finnegans Wake 16.5)

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