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  • From: Pete Cordell <pete++xmldev@c...>
  • To: Norman Gray <norman.gray@g...>
  • Date: Mon, 7 Mar 2022 17:18:02 +0000

On 07/03/2022 16:57, Norman Gray wrote:
The other gasp-worthy thing about SGML was that all of these lexical items, such as '<', '<!', and so on and very much on, were configurable, so you could prefix your document with declarations (in the 'other' syntax) which changed these, and have different character sequences open and close start-tags, processing instructions, and so on.  The angle brackets and ampersands we're familiar with are just the SGML defaults.

Many thanks, Norman. Very interesting. That sounds a nightmare for both (wo)man and machine! SGML vs. XML does seem to be a good exemplar of Antoine de Saint-Exupéry's “Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” (Although some might insist that more can be taken away from XML ;) )

Pete.
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Pete Cordell
Codalogic Ltd
Read & write XML in C++, http://www.xml2cpp.com
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