Powerpoint Bloat

[Evan Leibovitch]

phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org wrote:

>>- they claim IP rights on the DTD
>>    
>>
>                                ^^^? What is this, please?
>  
>
XML defines the structures, the DTD defines the kind of contents in a
way that is mutually agreed by creators and accessors of the data.

XML is a good generic structure for files, but a DTD document is
required to define what kind of content is inside that structure.

A word-processing DTD will be different from that for an XML file used
to describe other kinds of data. A word-processing DTD needs to define,
for instance, "bold" text, something that other uses of XML may not need.

Another well-known document-creation DTD for XML, before OpenOffice came
along, is DocBook. This is the DTD used by authors who create, amongst
other things, the Linux Documentation Project and I believe is used by
OReilly for its authors. DocBook was supported by OASIS even before
OpenDocument:
http://www.oasis-open.org/committees/tc_cat.php?cat=doccent and its
format is described in at least two books.

Actually, a look around the OASIS site will help examples of just how
many different uses of XML -- and how many different DTDs -- are out there.

- Evan

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