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Subject: Re: DOCBOOK: Issues with processing expectations of the proposedannotation element

At 09:09 2002 06 26 -0400, Jason Foster wrote:
>Would a marginalia be considered an annotation?

Since "annotation" is a logical concept and "marginalia"
is (at least as used here) a presentation, it is certainly 
the case that one could want to present an annotation as 
a marginalia [a marginalium?], but...

>In textbooks a (somewhat) common layout is to divide the page into two columns (65%,35%?) where the inside columns contain the full text and the outside columns contain a paragraph-by-paragraph summary.  A while back Norm described this as marginalia, and I would be tickled pink if it became a part of DocBook (and the FO stylesheets!)
>Jason Foster

...defining precisely how marginalia should be formatted
and being able to support them in composition systems is
very difficult.*

In particular, neither XSL 1.0 nor CSS supports marginalia.
Hence I did not consider the possibility of marginalia when
I outlined the processing expectation issues of the proposed
annotation element.  But thanks for bringing it up, at least
as an issue.


* Marginalia are floating constucts which are already tricky,
  but they are further complicated by the fact that their
  composed locations are supposed to be vertically aligned
  with their anchor in the flowing text.  Not only is this
  hard to do at best, but it's not even easy to define.  For
  example:  what is the proper alignment when you have two
  marginalia on the same word?; what do you do when marginalia
  anchored near the bottom of the page won't all fit on that
  page?; what happens when the anchors for two marginalia are
  closer together than the height of the first marginalia?, etc.

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