On Sun, 20 Oct 96 15:41:22 CDT, paul@arbortext.com (Paul Grosso) wrote: > > <!ENTITY chap1 SYSTEM "chapter1.sgm"> >(I realize if we decide >not to have external text entities in XML, then the first example above >would have to be an NDATA, but that's irrelevant to my question.) I realize that Paul was asking about URL syntax, but his last remark deserves remarking on. Adding "NDATA SGML" to the declaration makes it a data entity, even though it is in SGML notation. Data entities are not parsed in context, so if we don't allow external SGML text entities, "chapter.sgm" could not be a chapter in the element structure of the document containing this entity declaration. It would have to be an independently parsable document. (And "NDATA SGML" is an oxymoron; can't we have CDATA as well?) -- Charles F. Goldfarb * Information Management Consulting * +1(408)867-5553 13075 Paramount Drive * Saratoga CA 95070 * USA International Standards Editor * ISO 8879 SGML * ISO/IEC 10744 HyTime Prentice-Hall Series Editor * CFG Series on Open Information Management --Received on Sunday, 20 October 1996 18:00:07 EDT
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