RE: [docbook-tc] adding CALS attrs to HTML tables

[Bruce Rosenblum <bruce@inera.com>]

Paul, Norm,

My error. I didn't realize that the HTML 4.0 and XHTML table models were 
the same. I was under the impression that HTML 4.0 has used the same model 
as 3.2, which is somewhat limited, to provide better compatibility. If what 
you have in DocBook is the HTML 4.0 implementation, then it's a moot point.

Sorry for the confusion.

Bruce

At 09:27 AM 4/12/2005, Paul Grosso wrote:
>I'm with Norm--confused.
>
>To what XHTML model do you refer?
>
>XHTML is a "reformulation of HTML 4.0 in XML" [1].
>Its semantics are defined by HTML.  The table model is
>the same.  If you look at the XHTML spec, there is
>a section [2] describing the differences between HTML
>and XML, and all it talks about are the obvious
>differences between SGML and XML--nothing about
>the table model.
>
>The HTML 4.0 table model [3] has always supported
>tbody+ which is the HTML version of multiple tgroups.
>The XHTML model is the same.
>
>The HTML 4.0 table model has always supported
>character alignment; from the HTML 4.0 DTD [4]:
>
><!-- horizontal alignment attributes for cell contents -->
><!ENTITY % cellhalign
>   "align      (left|center|right|justify|char) #IMPLIED
>    char       %Character;    #IMPLIED  -- alignment char, e.g. char=':'
>--
>    charoff    %Length;       #IMPLIED  -- offset for alignment char --"
>   >
>
>I also checked the XHTML 1.1 modular table model [5]
>to confirm that it is basically the same as the XHTML 1.0
>table model and the HTML 4.0 table model.
>
>paul
>
>[1] http://www.w3.org/TR/xhtml1/#xhtml
>[2] http://www.w3.org/TR/xhtml1/#diffs
>[3] http://www.w3.org/TR/html401/struct/tables.html#h-11.2.1
>[4] http://www.w3.org/TR/html401/struct/tables.html#h-11.3.2
>[5]
>http://www.w3.org/TR/xhtml-modularization/abstract_modules.html#s_tablem
>odule
>
>
> > -----Original Message-----
> > From: Bruce Rosenblum [mailto:bruce@inera.com]
> > Sent: Monday, 11 April, 2005 21:06
> > To: Norman Walsh; docbook-tc@lists.oasis-open.org
> > Subject: Re: [docbook-tc] adding CALS attrs to HTML tables
> >
> > Hi Norm,
> >
> > I don't know if there's a list somewhere that enumerates the
> > differences
> > between HTML and XHTML (Debbie might know). However when we
> > were looking at
> > table models for the NLM DTD, there were two key points that
> > HTML lacked:
> >
> > 1. HTML does not support decimal alignment, which is essential for
> > scientific tables
> > 2. HTML does not support the equivalent of multiple <tgroup>
> > elements in a
> > single table
> >
> > XHTML supports both of these constructs. So we went with
> > XHTML rather than
> > HTML because it's a richer model, but also quite easy to
> > "dumb down" to
> > HTML if necessary.
> >
> > Bruce
> >
> > At 03:33 PM 4/11/2005, Norman Walsh wrote:
> > >Hi Bruce,
> > >
> > >/ Bruce Rosenblum <bruce@inera.com> was heard to say:
> > >| Many of the features from CALS that are useful (e.g. decimal
> > >| alignment, multiple table groups) appear in the XHTML
> > table model. For
> > >| this reason, the NLM DTD (http://dtd.nlm.nih.gov/) has two table
> > >| models, CALS (of course) and XHTML (rather than HTML). However this
> > >
> > >I don't see anything in XHTML[1] that suggests it has a different
> > >table model than HTML[2]. What are the differences and where are they
> > >documented?
> > >
> > >                                         Be seeing you,
> > >                                           norm
> > >
> > >[1] http://www.w3.org/TR/2002/REC-xhtml1-20020801/
> > >[2] http://www.w3.org/TR/1999/REC-html401-19991224/
>
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Bruce D. Rosenblum
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