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Re: MicroXML

  • From: David Carlisle <davidc@nag.co.uk>
  • To: Henri Sivonen <hsivonen@iki.fi>
  • Date: Tue, 14 Dec 2010 09:53:14 +0000

Re:  MicroXML
On 14/12/2010 00:43, Henri Sivonen wrote:
> I think paying attention to the polyglot rules in order to avoid taking an HTML serializer off the shelf is a wrong optimization, too.
>

well yes it's clear that the design of the html5 grammar considers this 
a minor use case, but really the costs in using existing syntax but with 
a different meaning (especially /> ) are going to inflict pain forever 
apparently motivated by a desire to gain a transient benefit of 
simplifying the reuse of the code base of three or four existing 
systems, which seems a really bad optimisation too.

There are far far more editing tools than there are browser 
implementations, using the xml syntax but parsing it differently 
inflicts costs on all those tools and the users of them.

For the special case of mathml and svg the html5 parser works round its 
own problems with a "foreign content" hack, but for everything else, 
including ironically (x)html, the natural behaviour of content 
generators to use /> syntax for empty elements is defined to be broken 
in html5.

David


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