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- From: "Rick Jelliffe" <ricko@allette.com.au>
- To: <xml-dev@ic.ac.uk>
- Date: Thu, 24 Jun 1999 11:58:38 +1000
From: Marcus Carr <mrc@allette.com.au>
>Kay Michael wrote:
>
>> Some of the argument against abbreviated end tags is psychological:
SGML
>> allowed too many such options, and it caused parsers to become
bloated and
>> incompatible. So the SGML oldies have an inbuilt distaste for them.
>
>Not this one - I still use SGML parsers specifically because they do
make it easier to mark up
>data by inserting the minimum number of tags.
I think there are two aspects:
1) SGML is at heart a compiler compiler; to complain that it
accomodates
variant syntaxes is like complaining that lex allows different delimiter
tokens:
that is the point of it.
2) SGML'86 allows different implementation to implement only parts
of the optional feature set, but did not provide a way to name or manage
these (i.e., invoking the SGML declaration using a formal public
identifier).
This in turn made it too difficult to create any brand identity: the
document
could not self-describe its brand of syntax. XML is largely a specific
Web-SGML declaration with a good brand-identity mechanism.
Rick Jelliffe
(N.b. despite the Allette email address, I don't work there. I just
keeping an
email account there.)
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