<!-- ............................................................... -->

<!-- XML specification DTD ......................................... -->

<!-- ............................................................... -->

<!--

TYPICAL INVOCATION:

#  <!DOCTYPE spec PUBLIC

#       "-//W3C//DTD Specification::19980323//EN"

#       "http://www.w3.org/XML/Group/DTD/xmlspec.dtd">

PURPOSE:

  This DTD was developed for use with the XML family of W3C

  specifications.  It is an XML-compliant DTD based in part on

  the TEI Lite and Sweb DTDs.

DEPENDENCIES:

  None.

CHANGE HISTORY:

  The list of changes is at the end of the DTD.

  For all details, see the design report at:

    <http://www.w3.org/XML/Group/DTD/xmlspec-report.htm>

  The "typical invocation" FPI always gets updated to reflect the

  date of the most recent changes.

  Search this file for "#" in the first column to see change history

  comments.

MAINTAINER:

  Eve Maler

  ArborText Inc.

  elm@arbortext.com

  voice: +1 781 270 5750

  fax:   +1 781 273 3760

-->

<!-- ............................................................... -->

<!-- Entities for characters and symbols ........................... -->

<!--

#1998-03-10: maler: Added “ and ”.

#                   Used 8879:1986-compatible decimal character

#                   references.

#                   Merged charent.mod file back into main file.

-->

<!ENTITY lt     "&#38;#60;">

<!ENTITY gt     "&#62;">

<!ENTITY amp    "&#38;#38;">

<!ENTITY apos   "&#39;">

<!ENTITY quot   "&#34;">

<!ENTITY mdash  "--">

<!ENTITY nbsp   "&#160;">

<!ENTITY ldquo  "#x201C;">

<!ENTITY rdquo  "#x201D;">

<!-- ............................................................... -->

<!-- Entities for classes of standalone elements ................... -->

<!--

#1997-10-16: maler: Added table to %illus.class;.

#1997-11-28: maler: Added htable to %illus.class;.

#1997-12-29: maler: IGNOREd table.

#1998-03-10: maler: Removed SGML Open-specific %illus.class;.

#                   Added "local" entities for customization.

-->

<!ENTITY % local.p.class        "">

<!ENTITY % p.class              "p

                                %local.p.class;">

<!ENTITY % local.statusp.class  "">

<!ENTITY % statusp.class        "statusp

                                %local.statusp.class;">

<!ENTITY % local.list.class     "">

<!ENTITY % list.class           "ulist|olist|slist|glist

                                %local.list.class;">

<!ENTITY % local.speclist.class "">

<!ENTITY % speclist.class       "orglist|blist

                                %local.speclist.class;">

<!ENTITY % local.note.class     "">

<!ENTITY % note.class           "note|wfcnote|vcnote

                                %local.note.class;">

<!ENTITY % local.illus.class    "">

<!ENTITY % illus.class          "eg|graphic|scrap|htable

                                %local.illus.class;">

<!-- ............................................................... -->

<!-- Entities for classes of phrase-level elements ................. -->

<!--

#1997-12-29: maler: Added xspecref to %ref.class;.

#1998-03-10: maler: Added %ednote.class;.

#                   Added "local" entities for customization.

-->

<!ENTITY % local.annot.class    "">

<!ENTITY % annot.class          "footnote

                                %local.annot.class;">

<!ENTITY % local.termdef.class    "">

<!ENTITY % termdef.class        "termdef|term

                                %local.termdef.class;">

<!ENTITY % local.emph.class    "">

<!ENTITY % emph.class           "emph|quote

                                %local.emph.class;">

<!ENTITY % local.ref.class    "">

<!ENTITY % ref.class            "bibref|specref|termref|titleref

                                |xspecref|xtermref

                                %local.ref.class;">

<!ENTITY % local.loc.class    "">

<!ENTITY % loc.class            "loc

                                %local.loc.class;">

<!ENTITY % local.tech.class    "">

<!ENTITY % tech.class           "kw|nt|xnt|code

                                %local.tech.class;">

<!ENTITY % local.ednote.class    "">

<!ENTITY % ednote.class         "ednote

                                %local.ednote.class;">

<!-- ............................................................... -->

<!-- Entities for mixtures of standalone elements .................. -->

<!--

#1997-09-30: maler: Created %p.mix; to eliminate p from self.

#1997-09-30: maler: Added %speclist.class; to %obj.mix; and %p.mix;.

#1997-09-30: maler: Added %note.class; to %obj.mix; and %p.mix;.

#1997-10-16: maler: Created %entry.mix;.  Note that some elements

#                   left out here are still allowed in termdef,

#                   which entry can contain through %p.pcd.mix;.

#1997-11-28: maler: Added %p.class; to %statusobj.mix;.

#1998-03-10: maler: Added %ednote.class; to all mixtures, except

#                   %p.mix; and %statusobj.mix;, because paragraphs

#                   and status paragraphs will contain ednote

#                   through %p.pcd.mix;.

#1998-03-123: maler: Added %termdef.mix; (broken out from

#                    %termdef.pcd.mix;).

-->

<!ENTITY % div.mix

        "%p.class;|%list.class;|%speclist.class;|%note.class;

        |%illus.class;|%ednote.class;">

<!ENTITY % obj.mix

        "%p.class;|%list.class;|%speclist.class;|%note.class;

        |%illus.class;|%ednote.class;">

<!ENTITY % p.mix

        "%list.class;|%speclist.class;|%note.class;|%illus.class;">

<!ENTITY % entry.mix

        "%list.class;|note|eg|graphic|%ednote.class;">

<!ENTITY % statusobj.mix

        "%p.class;|%statusp.class;|%list.class;">

<!ENTITY % hdr.mix

        "%p.class;|%list.class;|%ednote.class;">

<!ENTITY % termdef.mix

        "%note.class;|%illus.class;">

<!-- ............................................................... -->

<!-- Entities for mixtures of #PCDATA and phrase-level elements .... -->

<!--    Note that %termdef.pcd.mix contains %note.class;

        and %illus.class;, considered standalone elements. -->

<!--

#1997-09-30: maler: Added scrap and %note.class; to %termdef.pcd.mix;.

#1997-11-28: maler: Added %loc.class; to %p.pcd.mix;.

#1998-03-10: maler: Added %ednote.class; to all mixtures.

#1998-03-23: maler: Moved some %termdef.pcd.mix; stuff out to

#                   %termdef.mix;.

-->

<!ENTITY % p.pcd.mix

        "#PCDATA|%annot.class;|%termdef.class;|%emph.class;

        |%ref.class;|%tech.class;|%loc.class;|%ednote.class;">

<!ENTITY % statusp.pcd.mix

        "#PCDATA|%annot.class;|%termdef.class;|%emph.class;

        |%ref.class;|%tech.class;|%loc.class;|%ednote.class;">

<!ENTITY % head.pcd.mix

        "#PCDATA|%annot.class;|%emph.class;|%tech.class;|%ednote.class;">

<!ENTITY % label.pcd.mix

        "#PCDATA|%annot.class;|%termdef.class;|%emph.class;|%tech.class;

        |%ednote.class;">

<!ENTITY % eg.pcd.mix

        "#PCDATA|%annot.class;|%emph.class;|%ednote.class;">

<!ENTITY % termdef.pcd.mix

        "#PCDATA|term|%emph.class;|%ref.class;|%tech.class;

        |%ednote.class;">

<!ENTITY % bibl.pcd.mix

        "#PCDATA|%emph.class;|%ref.class;|%loc.class;|%ednote.class;">

<!ENTITY % tech.pcd.mix

        "#PCDATA|%ednote.class;">

<!ENTITY % loc.pcd.mix

        "#PCDATA|%loc.class;|%ednote.class;">

<!-- ............................................................... -->

<!-- Entities for customizable content models ...................... -->

<!--

#1998-03-10: maler: Added customization entities.

-->

<!ENTITY % spec.mdl

        "header, front?, body, back?">

<!ENTITY % header.mdl

        "title, subtitle?, version, w3c-designation, w3c-doctype,

        pubdate, notice*, publoc, prevlocs?, latestloc?, authlist,

        status, abstract, pubstmt?, sourcedesc?, langusage,

        revisiondesc">

<!ENTITY % pubdate.mdl

        "day?, month, year">

<!-- ............................................................... -->

<!-- Entities for common attributes ................................ -->

<!--    key attribute:

        Optionally provides a sorting or indexing key, for cases when

        the element content is inappropriate for this purpose. -->

<!ENTITY % key.att

        'key                    CDATA           #IMPLIED'>

<!--    def attribute:

        Points to the element where the relevant definition can be

        found, using the IDREF mechanism.  %def.att; is for optional

        def attributes, and %def-req.att; is for required def

        attributes. -->

<!ENTITY % def.att

        'def                    IDREF           #IMPLIED'>

<!ENTITY % def-req.att

        'def                    IDREF           #REQUIRED'>

<!--    ref attribute:

        Points to the element where more information can be found,

        using the IDREF mechanism.  %ref.att; is for optional

        ref attributes, and %ref-req.att; is for required ref

        attributes. -->

<!ENTITY % ref.att

        'ref                    IDREF           #IMPLIED'>

<!ENTITY % ref-req.att

        'ref                    IDREF           #REQUIRED'>

<!--

#1998-03-23: maler: Added show and actuate attributes to href.

#                   Added semi-common xml:space attribute.

-->

<!--    HREF and source attributes:

        Points to the element where more information or source data

        can be found, using the URL (XLL simple link) mechanism.

        For some purposes, is associated with additional XLL

        attributes. %href.att; is for optional HREF attributes,

        and %href-req.att; is for required HREF attributes.

        %source-req.att; is for the source attribute, which

        is always required. -->

<!--

#1998-5-23: brownell:	Turned "xml:link" into "xml-link" to

#			match usage in the XML spec, so that

#			validation errors aren't reported.

-->

<!ENTITY % href.att

        'xml-link               CDATA           #FIXED "simple"

        href                    CDATA           #IMPLIED

        show                    CDATA           #FIXED "embed"

        actuate                 CDATA           #FIXED "auto"'>

<!ENTITY % href-req.att

        'xml-link               CDATA           #FIXED "simple"

        href                    CDATA           #REQUIRED

        show                    CDATA           #FIXED "embed"

        actuate                 CDATA           #FIXED "auto"'>

<!ENTITY % source-req.att

        'xml-link               CDATA           #FIXED "simple"

        xml:attributes          NMTOKENS        #FIXED "href source"

        source                  CDATA           #REQUIRED

        show                    CDATA           #FIXED "embed"

        actuate                 CDATA           #FIXED "auto"'>

<!--    xml:space attribute:

        Indicates that the element contains white space

        that the formatter or other application should retain,

        as appropriate to its function. -->

<!ENTITY % xmlspace.att

        'xml:space              (default

                                |preserve)      #FIXED "preserve"'>

<!--    Common attributes:

        Every element has an ID attribute (sometimes required,

        but usually optional) for links, and a Role attribute

        for extending the useful life of the DTD by allowing

        authors to make subclasses for any element. %common.att;

        is for common attributes where the ID is optional, and

        %common-idreq.att; is for common attributes where the

        ID is required. -->

<!ENTITY % common.att

        'id                     ID              #IMPLIED

        role                    NMTOKEN         #IMPLIED'>

<!ENTITY % common-idreq.att

        'id                     ID              #REQUIRED

        role                    NMTOKEN         #IMPLIED'>

<!-- ............................................................... -->

<!-- Common elements ............................................... -->

<!--    head: Title on divisions, productions, and the like -->

<!ELEMENT head (%head.pcd.mix;)*>

<!ATTLIST head %common.att;>

<!-- ............................................................... -->

<!-- Major specification structure ................................. -->

<!--

#1998-03-10: maler: Made spec content model easily customizable.

-->

<!ELEMENT spec (%spec.mdl;)>

<!ATTLIST spec %common.att;>

<!ELEMENT front (div1+)>

<!ATTLIST front %common.att;>

<!ELEMENT body (div1+)>

<!ATTLIST body %common.att;>

<!--

#1997-09-30: maler: Added inform-div1 to back content.

-->

<!ELEMENT back ((div1+, inform-div1*) | inform-div1+)>

<!ATTLIST back %common.att;>

<!ELEMENT div1 (head, (%div.mix;)*, div2*)>

<!ATTLIST div1 %common.att;>

<!--

#1997-09-30: maler: Added inform-div1 declarations.

-->

<!--    inform-div1: Non-normative division in back matter -->

<!ELEMENT inform-div1 (head, (%div.mix;)*, div2*)>

<!ATTLIST inform-div1 %common.att;>

<!ELEMENT div2 (head, (%div.mix;)*, div3*)>

<!ATTLIST div2 %common.att;>

<!ELEMENT div3 (head, (%div.mix;)*, div4*)>

<!ATTLIST div3 %common.att;>

<!ELEMENT div4 (head, (%div.mix;)*)>

<!ATTLIST div4 %common.att;>

<!-- Specification header .......... -->

<!--

#1998-03-10: maler: Made header content model easily customizable.

-->

<!ELEMENT header (%header.mdl;)>

<!ATTLIST header %common.att;>

<!--    Example of title: "Extensible Cheese Language (XCL)" -->

<!ELEMENT title (#PCDATA)>

<!ATTLIST title %common.att;>

<!--    Example of subtitle: "A Cheesy Specification" -->

<!ELEMENT subtitle (#PCDATA)>

<!ATTLIST subtitle %common.att;>

<!--    Example of version: "Version 666.0" -->

<!ELEMENT version (#PCDATA)>

<!ATTLIST version %common.att;>

<!--    Example of w3c-designation: "WD-xcl-19991231" -->

<!ELEMENT w3c-designation (#PCDATA)>

<!ATTLIST w3c-designation %common.att;>

<!--    Example of w3c-doctype: "World Wide Web Consortium Working

        Draft" -->

<!ELEMENT w3c-doctype (#PCDATA)>

<!ATTLIST w3c-doctype %common.att;>

<!--

#1998-03-10: maler: Made pubdate content model easily customizable.

-->

<!ELEMENT pubdate (%pubdate.mdl;)>

<!ATTLIST pubdate %common.att;>

<!ELEMENT day (#PCDATA)>

<!ATTLIST day %common.att;>

<!ELEMENT month (#PCDATA)>

<!ATTLIST month %common.att;>

<!ELEMENT year (#PCDATA)>

<!ATTLIST year %common.att;>

<!--    Example of notice: "This draft is for public comment..." -->

<!ELEMENT notice (%hdr.mix;)+>

<!ATTLIST notice %common.att;>

<!ELEMENT publoc (loc+)>

<!ATTLIST publoc %common.att;>

<!ELEMENT prevlocs (loc+)>

<!ATTLIST prevlocs %common.att;>

<!ELEMENT latestloc (loc+)>

<!ATTLIST latestloc %common.att;>

<!--      loc (defined in "Phrase-level elements" below) -->

<!ELEMENT authlist (author+)>

<!ATTLIST authlist %common.att;>

<!--

#1997-09-30: maler: Made affiliation optional.

#1998-03-10: maler: Made email optional.

-->

<!ELEMENT author (name, affiliation?, email?)>

<!ATTLIST author %common.att;>

<!ELEMENT name (#PCDATA)>

<!ATTLIST name

        %common.att;

        %key.att;>

<!ELEMENT affiliation (#PCDATA)>

<!ATTLIST affiliation %common.att;>

<!ELEMENT email (#PCDATA)>

<!--    HREF attribute:

        email functions as a hypertext reference through this

        required attribute.  Typically the reference would use

        the mailto: scheme. -->

<!ATTLIST email

        %common.att;

        %href-req.att;>

<!--    The status element now contains both statusp and p, and

        the latter now allows loc.  Use p; statusp will be removed

        eventually. -->

<!ELEMENT status (%statusobj.mix;)+>

<!ATTLIST status %common.att;>

<!ELEMENT abstract (%hdr.mix;)*>

<!ATTLIST abstract %common.att;>

<!ELEMENT pubstmt (%hdr.mix;)+>

<!ATTLIST pubstmt %common.att;>

<!ELEMENT sourcedesc (%hdr.mix;)+>

<!ATTLIST sourcedesc %common.att;>

<!ELEMENT langusage (language+)>

<!ATTLIST langusage %common.att;>

<!ELEMENT language (#PCDATA)>

<!ATTLIST language %common.att;>

<!ELEMENT revisiondesc (%hdr.mix;)+>

<!ATTLIST revisiondesc %common.att;>

<!-- ............................................................... -->

<!-- Standalone elements ........................................... -->

<!-- Paragraphs .................... -->

<!--

#1997-09-30: maler: Changed from %obj.mix; to %p.mix;.

#1997-12-29: maler: Changed order of %p.mix; and %p.pcd.mix; references.

#1997-12-29: maler: Changed order of %statusobj.mix; and %statusp.pcd.mix;

#                   references.

-->

<!ELEMENT p (%p.pcd.mix;|%p.mix;)*>

<!ATTLIST p %common.att;>

<!--    statusp: Special paragraph that allows loc inside it (note that

        p now also allows loc) -->

<!ELEMENT statusp (%statusp.pcd.mix;|%statusobj.mix;)*>

<!ATTLIST statusp %common.att;>

<!-- Lists ......................... -->

<!ELEMENT ulist (item+)>

<!--    spacing attribute:

        Use "normal" to get normal vertical spacing for items;

        use "compact" to get less spacing.  The default is dependent

        on the stylesheet. -->

<!ATTLIST ulist

        %common.att;

        spacing         (normal|compact)        #IMPLIED>

<!ELEMENT olist (item+)>

<!--    spacing attribute:

        Use "normal" to get normal vertical spacing for items;

        use "compact" to get less spacing.  The default is dependent

        on the stylesheet. -->

<!ATTLIST olist

        %common.att;

        spacing         (normal|compact)        #IMPLIED>

<!ELEMENT item (%obj.mix;)+>

<!ATTLIST item %common.att;>

<!ELEMENT slist (sitem+)>

<!ATTLIST slist %common.att;>

<!ELEMENT sitem (%p.pcd.mix;)*>

<!ATTLIST sitem %common.att;>

<!ELEMENT glist (gitem+)>

<!ATTLIST glist %common.att;>