- From: Rick Jelliffe <ricko@allette.com.au>
- Date: Sun, 22 Jun 1997 04:36:20 +1000
- To: "'w3c-sgml-wg@w3.org'" <w3c-sgml-wg@w3.org>
What about this: ------------------------------------------------------------------------ ----------------SOF <?XML server-macro="cpp" ?> #define TEXT ( q | emph | name ) #define LINKS ( xref | a | link) <!DOCTYPE book SYSTEM "book.dtd" [ <!ELEMENT book - - ( #PCDATA | TEXT | LINKS)*> ]> #undefine TEXT #undefine LINKS <book>blah</book> ------------------------------------------------------------------------ -----------------EOF In other words, what about forgetting about PEs and just let the document nominate its own server-side macro-preprocessor. One of these could be SGML PEs, but that is a system matter. The XML documents delivered to the notional client would have the macros expanded or the PEs dereferenced. (That gives us supply-side includes as well.) <!ATTLIST #NOTATION XML -- XML encoding PI -- version NUTOKEN "1.0" encoding NUTOKEN "utf-8" server-macro ( PE | CPP | M4 | ...) PE -- ... > One of the reasons for SGML entities is to allow notatations. If notation info for NDATA is supplied out of band by MIME headers or by self-identifying files, and if client-side general external entities are being superceded by xml-links, then maybe we can just forget PEs also. Maybe, for XML, stupid macro-replacement notionally performed at the server side is all that is needed. Which raises the interesting parallel, that the XML encoding PI is really an inline version of the FSI (at least, of the contents of the FSI pseudo-start-tag). In which case, if the construct is already in XML, why not allow XML links to be FSIs? Rick Jelliffe p.s. To give a flavour of the SGML from the Web TC, here is the above example with the new SGML header, and a SEEALSO application requirements parameter. An editor application editing this document could stick any resources given in the SEEALSO parameter into the Help... menu of the editor automatically! ------------------------------------------------------------------------ ----------------SOF <?XML version="1.0" encoding="8859-2" server-macro="cpp" ?> <!SGML PUBLIC "IDN//W3C.ORG//SD XML Version 1.0//EN"> #define TEXT ( q | emph | name ) #define LINKS ( xref | a | link) <!DOCTYPE book SYSTEM "book.dtd" SEEALSO SYSTEM "http://www.w3.org/help/how-to-use-book-DTD.html" [ <!ELEMENT book - - ( #PCDATA | TEXT | LINKS)*> ]> #undefine TEXT #undefine LINKS <book>blah</book> ------------------------------------------------------------------------ -----------------EOF
Received on Saturday, 21 June 1997 14:50:41 UTC