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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.


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
>                                         Be seeing you,
>                                           norm
>[1] http://www.w3.org/TR/2002/REC-xhtml1-20020801/
>[2] http://www.w3.org/TR/1999/REC-html401-19991224/
>Norman Walsh <ndw@nwalsh.com>      | The stone fell on the pitcher? Woe
>http://www.oasis-open.org/docbook/ | to the pitcher. The pitcher fell
>Chair, DocBook Technical Committee | on the stone? Woe to the
>                                    | pitcher.--Rabbinic Saying
>__________ NOD32 1.1057 (20050411) Information __________
>This message was checked by NOD32 antivirus system.

Bruce D. Rosenblum
Inera Inc.
815 Washington St. #3
Newton, MA 02460
617-969-3053 (office)
617-969-4911 (fax)

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