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Re: Future of XSL-FO at W3C??

• To: mbatsis@h...
• Subject: Re: Future of XSL-FO at W3C??
• From: "J.Pietschmann" <j3322ptm@y...>
• Date: Mon, 21 Oct 2002 01:23:34 +0200
• Cc: David Rosenborg <darolst@p...>, David Carlisle <davidc@n...>, AndrewWatt2000@a..., xml-dev@l..., www-style@w...
• References: <cb.29d7ce0e.2ae15d39@a...> <009701c276ab$f9993dd0$6500000a@KENNY> <3DB31C1A.8010902@y...> <200210210135.50279.mbatsis@n...>
• User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1) Gecko/20020826

m batsis wrote:
> So a formal mapping 
> between CSS and FO properties is the way to go by
> 
You'll find it in the XSLFO spec.

> To return back to my question on inheritance, perhaps you are talking about 
> what I think of as groupings, for example the subset of background 
> properties.

No, I was talking about how presentational properties are tacked to
nodes in the XML tree. Usually nodes inherit certain properties from
their ancestors. Two problems:
- Which properties are inherited, and where is inheritance blocked.
- The interaction of inheritance, shorthand evaluation and default
   values.
- If the properties are declared separately and connected to the tree
   by a matching mechanism, it has to be defined how this is done. For
   example
    div.sect { margin-top: 3pt }
    div { margin: 12pt }
Unfortunately, CSS mixes all aspects and thereby muddles what
"inheritance" means.

As for your thoughts, well, XSLFO introduced structured properties
consisting of minimum, optimum and maxumum values and occasionally
of a conditionality, with shorthands for setting all values at once,
and with shorthands to set a bunch of related properties, and an
expression language, and a variety of data types. This introduces a
lot of complexity, you can read a hairrising discussion about this
topic in the archives of the fop-dev list.

J.Pietschmann

• Follow-Ups:
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• References:
  • Re: Future of XSL-FO at W3C??
    • From: AndrewWatt2000@a...
  • Re: Future of XSL-FO at W3C??
    • From: "David Rosenborg" <darolst@p...>
  • Re: Future of XSL-FO at W3C??
    • From: "J.Pietschmann" <j3322ptm@y...>
  • Re: Future of XSL-FO at W3C??
    • From: "m batsis" <mbatsis@n...>

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