Namespaces and DTDs

Chris Maden crism at
Thu Mar 11 20:34:30 GMT 1999

[Didier PH Martin]
> a) a Lisp document could be made SGML compliant because SGML can let
> you define begin and end tag's delimiters (Ex: dsssl).

I think there's a little confusion here about DSSSL.  DSSSL
stylesheets are SGML documents, but they usually use angle-brackets:


(default (make sequence))


The parentheses are only character data.

I don't think that Lisp could be made SGML compliant; the delimiters
could be redefined, but as Steve DeRose notes in _The SGML FAQ Book_,
there are some limits to the flexibility of the redefinitions, since
some delimiter roles are overloaded.  Also, Lisp doesn't have the
equivalent of start-tag close, and you can only omit tagc if the next
character is stago or etago (ISO 8879:1986, clause which it
wouldn't be when you get to the leaves of a structure.

<!ENTITY crism PUBLIC "-//O'Reilly//NONSGML Christopher R. Maden//EN"
"<URL> <TEL>+1.617.499.7487
<USMAIL>90 Sherman Street, Cambridge, MA 02140 USA" NDATA SGML.Geek>

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