Ampersand connector in XML
Tim Bray
tbray at textuality.com
Tue Mar 30 04:32:48 BST 1999
At 12:24 PM 3/30/99 +1000, Alison Lennon wrote:
>Could someone please explain to me why the ampersand group connector
>of SGML was not included in XML.
>
>It seems to me that the absence of this connector results in
>significant problems for many applications based on XML that want to
>use unordered lists of elements.
Simply because it's a lot harder to implement than all the other
content model apparatus. In fact, back in SGML days, it was well-known
to be buggy in several rather good and successful SGML products. Yes,
its absence does represent a loss in expressive power. At the time,
it seemed like a good trade-off. To me it still does, although it
has particularly irked the (large and growing number of) people who
want to use XML to model relational semantics. -Tim
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