- From: Stephen Deach <sdeach@Adobe.COM>
- Date: Tue, 18 May 1999 11:14:34 -0700
- To: GignacDA@nswccd.navy.mil, xsl-editors@w3.org, WestbrookEL@nswccd.navy.mil, JunodLJ@nswccd.navy.mil
- Cc: GarnerFJ@nswccd.navy.mil, LeBeauRP@nswccd.navy.mil
GignacDA, I have asked the person that constructed the DTD to review your comments. Thank you for you input. -SDeach At 13:43 1999-05-18 -0400, GignacDA@nswccd.navy.mil wrote: >The following comments pertain to the XML DTD in Appendix A "DTD for XSL >Formatting Objects" in the W3C working draft of the "Extensible Stylesheet >Language Specification" dated April 21, 1999 >(http://www.w3.org/TR/1999/WD-xsl-19990421). The numbers in square brackets >refer to the productions in the current XML specification >(http://www.w3.org/TR/REC-xml) defining XML syntax. > >1. [5} "Name" and [45] "elementdecl" which define the ELEMENT declaration in >XML do not allow element types to be defined in terms of a name group. >Accordingly, the following ELEMENT declaration > ><!ELEMENT (fo:table-header | fo:table-footer | fo:table-body) > ( > fo:table-row+ > | fo:table-cell+ > ) >> > >must be rewritten as three separate ELEMENT declarations > ><!ELEMENT fo:table-header > ( > fo:table-row+ > | fo:table-cell+ > ) >> > ><!ELEMENT fo:table-footer > ( > fo:table-row+ > | fo:table-cell+ > ) >> > ><!ELEMENT fo:table-body > ( > fo:table-row+ > | fo:table-cell+ > ) >> > >2. [5] "Name" and [52] "AttlistDecl" which define the ATTLIST declaration >in XML do not allow the attributes of element types to be defined in terms >of a name group. Accordingly, the following ATTLIST declaration > ><!ATTLIST (fo:table-header | fo:table-footer | fo:table-body) > %common-absolute-position-properties; > %common-aural-properties; > %common-border-padding-and-background-properties; > id CDATA #IMPLIED >> > >must be rewritten as three separate ATTLIST declarations > ><!ATTLIST fo:table-header > %common-absolute-position-properties; > %common-aural-properties; > %common-border-padding-and-background-properties; > id CDATA #IMPLIED >> > ><!ATTLIST fo:table-footer > %common-absolute-position-properties; > %common-aural-properties; > %common-border-padding-and-background-properties; > id CDATA #IMPLIED >> > ><!ATTLIST fo:table-body > %common-absolute-position-properties; > %common-aural-properties; > %common-border-padding-and-background-properties; > id CDATA #IMPLIED >> > >3. [45] "elementdecl", [46] "contentspec", and [51] "Mixed" require that >content models containing the "#PCDATA" content token along with other >content tokens must be of the form > >(#PCDATA | a | b | c| . . . )* > >Accordingly, the occurrence indicator "+" in five ELEMENT declarations > ><!ELEMENT fo:inline-sequence ( > #PCDATA > | %inlines; > | %block-level; > )+ >> > ><!ELEMENT fo:footnote-citation ( > #PCDATA > | %inlines; > )+ >> > ><!ELEMENT fo:bidi-override ( > #PCDATA > | %inlines; > )+ >> > ><!ELEMENT fo:simple-link ( > #PCDATA > | %inlines; > | %block-level; > )+ >> > ><!ELEMENT fo:multi-toggle ( > #PCDATA > | %inlines; > )+ >> > >must changed to "*" as follows > ><!ELEMENT fo:inline-sequence ( > #PCDATA > | %inlines; > | %block-level; > )* >> > ><!ELEMENT fo:footnote-citation ( > #PCDATA > | %inlines; > )* >> > ><!ELEMENT fo:bidi-override ( > #PCDATA > | %inlines; > )* >> > ><!ELEMENT fo:simple-link ( > #PCDATA > | %inlines; > | %block-level; > )* >> > ><!ELEMENT fo:multi-toggle ( > #PCDATA > | %inlines; > )* >> > >4. As noted previously, [45] "elementdecl", [46] "contentspec", and [51] >"Mixed" require that content models containing the "#PCDATA" content token >along with other content tokens must be of the form > >(#PCDATA | a | b | c| . . . )* > >The following two ELEMENT declarations > ><!ELEMENT fo:block ( > fo:first-line-marker?, > ( > #PCDATA > | %inlines; > | %block-level; > )+ > ) >> > ><!ELEMENT fo:multi-properties ( > fo:multi-property-set+, > ( > #PCDATA > | %inlines; > | %block-level; > )+ > ) >> > >have content models of the forms > >(z1?, (#PCDATA | y | x | w | . . . ) > >(z2+, (#PCDATA | y | x | w | . . . ) > >respectively. These two content models will have to be rewritten in the form >of > >(#PCDATA | a | b | c| . . . )* > >5. [45] "elementdecl", [46] "contentspec", [47] "children" and [51] "Mixed" >do not permit the inclusions or exclusions exceptions of SGML in XML. The >content models of the three ELEMENT declarations > ><!ELEMENT fo:float ( > %block-level; > )+ -(%out-of-lines) >> > ><!ELEMENT fo:footnote ( > fo:footnote-citation?, > (%block-level;)+ > ) -(%out-of-lines) >> > ><!ELEMENT fo:multi-case ( > #PCDATA > | %inlines; > | %block-level; > )+ +(fo:multi-toggle) >> > >will have to be rewritten so as to model their acceptable content without >resorting to exclusions or inclusions exceptions. > >Also note that the "%out-of-line" general entity references are not >terminated by ";" as required by [68] "EntityRef". Finally, the "+" >following the last content model above must be "*" in accordance with [45] >"elementdecl", [46] "contentspec", and [51] "Mixed". > > > ---------------------------------------------------------------------------- ------- Stephen Deach | Sr Computer Scientist 408-536-6521 (office) | Adobe Systems Inc. 408-537-4214 (fax) | Mail Stop E15-420 sdeach@adobe.com | 345 Park Ave | San Jose, CA 95110-2704 | USA ---------------------------------------------------------------------------- -------
Received on Tuesday, 18 May 1999 14:14:23 UTC