dtddiff of XSDL 5/99 and 9/99
Date: Tue, 28 Sep 1999 11:23:38 -0400 From: "DuCharme, Robert" <DuCharmR@moodys.com> To: 'xml-dev' <xml-dev@ic.ac.uk> Subject: dtddiff of XSDL 5/99 and 9/99
I ran Earl Hood's dtddiff on the DTD provided in Appendix B of the September 24th W3C Schema WD to compare it to the May version, and thought others might be interested in the output. (See http://www.oac.uci.edu/indiv/ehood/perlSGML.html for Earl's excellent collection of DTD manipulation tools which, although written for SGML DTDs, work fine with XML DTDs.) It's a nice, concise summary of differences.
If your mail reader [browser] displays it in a proportional font, set it to a monospaced font to make the columns line up properly.
---------------------------------------------------------------------- New Elements/Attributes (xmlschema9-99.dtd) ---------------------------------------------------------------------- <archetype content> <archetype default> <archetype fixed> <archetype order> <archetype schemaabbrev> <archetype schemaname> <archetype type> <attribute> <attribute default> <attribute fixed> <attribute maxoccurs> <attribute minoccurs> <attribute name> <attribute schemaabbrev> <attribute schemaname> <attribute type> <component> <component name> <component type> <datatypequal> <element> <element archref> <element default> <element export> <element fixed> <element maxoccurs> <element minoccurs> <element name> <element ref> <element schemaabbrev> <element schemaname> <element type> <encoding> <export elements> <group> <group collection> <group maxoccurs> <group minoccurs> <group name> <group order> <import elements> <include elements> <maxabsolutevalue> <minabsolutevalue> <modelgroup order> <modelgroupref maxoccurs> <modelgroupref minoccurs> <refines name> <refines schemaabbrev> <refines schemaname> <schema targetns> ---------------------------------------------------------------------- Old/removed Elements/Attributes (xmlschema5-99.dtd) ---------------------------------------------------------------------- <all> <all maxoccur> <all minoccur> <any> <archetype export> <archetyperef> <archetyperef name> <archetyperef schemaabbrev> <archetyperef schemaname> <attrdecl> <attrdecl name> <attrdecl required> <choice> <choice maxoccur> <choice minoccur> <datatyperef> <datatyperef name> <datatyperef schemaabbrev> <datatyperef schemaname> <default> <elementtype> <elementtype export> <elementtype model> <elementtype name> <elementtyperef> <elementtyperef maxoccur> <elementtyperef minoccur> <elementtyperef name> <elementtyperef schemaabbrev> <elementtyperef schemaname> <empty> <entityref> <entityref name> <entityref schemaabbrev> <entityref schemaname> <export elementtypes> <fixed> <import elementtypes> <include elementtypes> <mixed> <modelgroupref maxoccur> <modelgroupref minoccur> <notationref> <notationref name> <notationref schemaabbrev> <notationref schemaname> <schema name> <sequence> <sequence maxoccur> <sequence minoccur> ---------------------------------------------------------------------- Content Rule Differences ---------------------------------------------------------------------- ------------------------------------------------------------ <ARCHETYPE> << old content rule << (refines?, (DATATYPEREF| (ANY|EMPTY|ALL|CHOICE|ELEMENTTYPEREF|ELEMENTTYPE|SEQUENCE|MIXED| modelgroupref))?, (ATTRDECL|attrgroupref)*) >> new content rule >> (refines*, ((element|group|modelgroupref)*|datatypequal?), (attribute|attrgroupref)*) ------------------------------------------------------------ <ATTRGROUP> << old content rule << (ATTRDECL|attrgroupref)+ >> new content rule >> (attribute|attrgroupref)+ ------------------------------------------------------------ <DATATYPE> << old content rule << (basetype, (((mininclusive|minexclusive)?, (maxinclusive|maxexclusive)?)|precision|scale|lexicalrepresentation| enumeration|length|maxlength)*) >> new content rule >> (basetype, ((mininclusive|minexclusive)| (maxinclusive|maxexclusive)| (maxabsolutevalue,minabsolutevalue)?|precision|scale| lexicalrepresentation|enumeration|length|maxlength|encoding)*) ------------------------------------------------------------ <IMPORT> << old content rule << ((ELEMENTTYPEREF|ARCHETYPEREF|DATATYPEREF|modelgroupref|attrgroupref| ENTITYREF|NOTATIONREF)*) >> new content rule >> (component*) ------------------------------------------------------------ <INCLUDE> << old content rule << ((ELEMENTTYPEREF|ARCHETYPEREF|DATATYPEREF|modelgroupref|attrgroupref| ENTITYREF|NOTATIONREF)*) >> new content rule >> (component*) ------------------------------------------------------------ <MODELGROUP> << old content rule << (ALL|CHOICE|ELEMENTTYPEREF|ELEMENTTYPE|SEQUENCE) >> new content rule >> (element|group|modelgroupref)+ ------------------------------------------------------------ <REFINES> << old content rule << (ARCHETYPEREF)* >> new content rule >> EMPTY ------------------------------------------------------------ <SCHEMA> << old content rule << ((import*,include*,export?, (comment|datatype|archetype|ELEMENTTYPE|attrgroup|modelgroup|notation| textentity|externalentity|unparsedentity)*)) >> new content rule >> ((import*,include*,export?, (comment|datatype|archetype|element|attrgroup|modelgroup|notation| textentity|externalentity|unparsedentity)*))
Bob DuCharme www.snee.com/bob <bob@ snee.com> see www.snee.com/bob/xmlann for "XML: The Annotated Specification" from Prentice Hall.
xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@ic.ac.uk Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
Prepared by Robin Cover for the The SGML/XML Web Page archive.