1<!-- ............................................................... -->
2<!-- XML specification DTD ......................................... -->
3<!-- ............................................................... -->
4
5<!--
6TYPICAL INVOCATION:
7#  <!DOCTYPE spec PUBLIC
8#       "-//W3C//DTD Specification::19980521//EN"
9#       "http://www.w3.org/XML/1998/06/xmlspec-19980521.dtd">
10
11PURPOSE:
12  This DTD was developed for use with the XML family of W3C
13  specifications.  It is an XML-compliant DTD based in part on
14  the TEI Lite and Sweb DTDs.
15
16DEPENDENCIES:
17  None.
18
19CHANGE HISTORY:
20  The list of changes is at the end of the DTD.
21
22  For all details, see the design report at:
23
24#   <http://www.w3.org/XML/1998/06/xmlspec-report-19980521.htm>
25
26  The "typical invocation" FPI always gets updated to reflect the
27  date of the most recent changes.
28
29  Search this file for "#" in the first column to see change history
30  comments.
31
32MAINTAINER:
33  Eve Maler
34  ArborText Inc.
35  elm@arbortext.com
36  voice: +1 781 270 5750
37  fax:   +1 781 273 3760
38-->
39
40<!-- ............................................................... -->
41<!-- Entities for characters and symbols ........................... -->
42
43<!--
44#1998-03-10: maler: Added &ldquo; and &rdquo;.
45#                   Used 8879:1986-compatible decimal character
46#                   references.
47#                   Merged charent.mod file back into main file.
48#1998-05-14: maler: Fixed ldquo and rdquo.  Gave mdash a real number.
49-->
50
51<!ENTITY lt     "&#38;#60;">
52<!ENTITY gt     "&#62;">
53<!ENTITY amp    "&#38;#38;">
54<!ENTITY apos   "&#39;">
55<!ENTITY quot   "&#34;">
56<!ENTITY nbsp   "&#160;">
57<!--
58<!ENTITY mdash  "&#x2014;">
59<!ENTITY ldquo  "&#x201C;">
60<!ENTITY rdquo  "&#x201D;">
61-->
62
63<!-- ............................................................... -->
64<!-- Entities for classes of standalone elements ................... -->
65
66<!--
67#1997-10-16: maler: Added table to %illus.class;.
68#1997-11-28: maler: Added htable to %illus.class;.
69#1997-12-29: maler: IGNOREd table.
70#1998-03-10: maler: Removed SGML Open-specific %illus.class;.
71#                   Added "local" entities for customization.
72#1998-05-14: maler: Added issue to %note.class;.
73#                   Removed %[local.]statusp.class;.
74#1998-05-21: maler: Added constraintnote to %note.class;.
75-->
76
77<!ENTITY % local.p.class        "">
78<!ENTITY % p.class              "p
79                                %local.p.class;">
80
81<!ENTITY % local.list.class     "">
82<!ENTITY % list.class           "ulist|olist|slist|glist
83                                %local.list.class;">
84
85<!ENTITY % local.speclist.class "">
86<!ENTITY % speclist.class       "orglist|blist
87                                %local.speclist.class;">
88
89<!ENTITY % local.note.class     "">
90<!ENTITY % note.class           "note|issue|wfcnote|vcnote
91                                |constraintnote %local.note.class;">
92
93<!ENTITY % local.illus.class    "">
94<!ENTITY % illus.class          "eg|graphic|scrap|htable
95                                %local.illus.class;">
96
97<!-- ............................................................... -->
98<!-- Entities for classes of phrase-level elements ................. -->
99
100<!--
101#1997-12-29: maler: Added xspecref to %ref.class;.
102#1998-03-10: maler: Added %ednote.class;.
103#                   Added "local" entities for customization.
104-->
105
106<!ENTITY % local.annot.class    "">
107<!ENTITY % annot.class          "footnote
108                                %local.annot.class;">
109
110<!ENTITY % local.termdef.class    "">
111<!ENTITY % termdef.class        "termdef|term
112                                %local.termdef.class;">
113
114<!ENTITY % local.emph.class    "">
115<!ENTITY % emph.class           "emph|quote
116                                %local.emph.class;">
117
118<!ENTITY % local.ref.class    "">
119<!ENTITY % ref.class            "bibref|specref|termref|titleref
120                                |xspecref|xtermref
121                                %local.ref.class;">
122
123<!ENTITY % local.loc.class    "">
124<!ENTITY % loc.class            "loc
125                                %local.loc.class;">
126
127<!ENTITY % local.tech.class    "">
128<!ENTITY % tech.class           "kw|nt|xnt|code
129                                %local.tech.class;">
130
131<!ENTITY % local.ednote.class    "">
132<!ENTITY % ednote.class         "ednote
133                                %local.ednote.class;">
134
135<!-- ............................................................... -->
136<!-- Entities for mixtures of standalone elements .................. -->
137
138<!--
139#1997-09-30: maler: Created %p.mix; to eliminate p from self.
140#1997-09-30: maler: Added %speclist.class; to %obj.mix; and %p.mix;.
141#1997-09-30: maler: Added %note.class; to %obj.mix; and %p.mix;.
142#1997-10-16: maler: Created %entry.mix;.  Note that some elements
143#                   left out here are still allowed in termdef,
144#                   which entry can contain through %p.pcd.mix;.
145#1997-11-28: maler: Added %p.class; to %statusobj.mix;.
146#1998-03-10: maler: Added %ednote.class; to all mixtures, except
147#                   %p.mix; and %statusobj.mix;, because paragraphs
148#                   and status paragraphs will contain ednote
149#                   through %p.pcd.mix;.
150#1998-03-23: maler: Added %termdef.mix; (broken out from
151#                    %termdef.pcd.mix;).
152#1998-05-14: maler: Removed %statusobj.mix; and all mentions of
153#                   %statusp.mix;.
154-->
155
156<!ENTITY % div.mix
157        "%p.class;|%list.class;|%speclist.class;|%note.class;
158        |%illus.class;|%ednote.class;">
159<!ENTITY % obj.mix
160        "%p.class;|%list.class;|%speclist.class;|%note.class;
161        |%illus.class;|%ednote.class;">
162<!ENTITY % p.mix
163        "%list.class;|%speclist.class;|%note.class;|%illus.class;">
164<!ENTITY % entry.mix
165        "%list.class;|note|eg|graphic|%ednote.class;">
166<!ENTITY % hdr.mix
167        "%p.class;|%list.class;|%ednote.class;">
168<!ENTITY % termdef.mix
169        "%note.class;|%illus.class;">
170
171<!-- ............................................................... -->
172<!-- Entities for mixtures of #PCDATA and phrase-level elements .... -->
173
174<!--    Note that %termdef.pcd.mix contains %note.class;
175        and %illus.class;, considered standalone elements. -->
176
177<!--
178#1997-09-30: maler: Added scrap and %note.class; to %termdef.pcd.mix;.
179#1997-11-28: maler: Added %loc.class; to %p.pcd.mix;.
180#1998-03-10: maler: Added %ednote.class; to all mixtures.
181#1998-03-23: maler: Moved some %termdef.pcd.mix; stuff out to
182#                   %termdef.mix;.
183#1998-05-14: maler: Removed %statusp.pcd.mix;.
184#1998-05-21: maler: Added constraint element to %eg.pcd.mix;.
185-->
186
187<!ENTITY % p.pcd.mix
188        "#PCDATA|%annot.class;|%termdef.class;|%emph.class;
189        |%ref.class;|%tech.class;|%loc.class;|%ednote.class;">
190<!ENTITY % head.pcd.mix
191        "#PCDATA|%annot.class;|%emph.class;|%tech.class;|%ednote.class;">
192<!ENTITY % label.pcd.mix
193        "#PCDATA|%annot.class;|%termdef.class;|%emph.class;|%tech.class;
194        |%ednote.class;">
195<!ENTITY % eg.pcd.mix
196        "#PCDATA|%annot.class;|%emph.class;|%ednote.class;|constraint">
197<!ENTITY % termdef.pcd.mix
198        "#PCDATA|term|%emph.class;|%ref.class;|%tech.class;
199        |%ednote.class;">
200<!ENTITY % bibl.pcd.mix
201        "#PCDATA|%emph.class;|%ref.class;|%loc.class;|%ednote.class;">
202<!ENTITY % tech.pcd.mix
203        "#PCDATA|%ednote.class;">
204<!ENTITY % loc.pcd.mix
205        "#PCDATA|%loc.class;|%ednote.class;">
206
207<!-- ............................................................... -->
208<!-- Entities for customizable content models ...................... -->
209
210<!--
211#1998-03-10: maler: Added customization entities.
212#1998-05-14: maler: Allowed prevlocs and latestloc in either order.
213-->
214
215<!ENTITY % spec.mdl
216        "header, front?, body, back?">
217
218<!ENTITY % header.mdl
219        "title, subtitle?, version, w3c-designation, w3c-doctype,
220        pubdate, notice*, publoc, ((prevlocs, latestloc?) |
221        (latestloc, prevlocs?))?, authlist, status, abstract,
222        pubstmt?, sourcedesc?, langusage, revisiondesc">
223
224<!ENTITY % pubdate.mdl
225        "day?, month, year">
226
227<!-- ............................................................... -->
228<!-- Entities for common attributes ................................ -->
229
230<!--    key attribute:
231        Optionally provides a sorting or indexing key, for cases when
232        the element content is inappropriate for this purpose. -->
233<!ENTITY % key.att
234        'key                    CDATA           #IMPLIED'>
235
236<!--    def attribute:
237        Points to the element where the relevant definition can be
238        found, using the IDREF mechanism.  %def.att; is for optional
239        def attributes, and %def-req.att; is for required def
240        attributes. -->
241<!ENTITY % def.att
242        'def                    IDREF           #IMPLIED'>
243<!ENTITY % def-req.att
244        'def                    IDREF           #REQUIRED'>
245
246<!--    ref attribute:
247        Points to the element where more information can be found,
248        using the IDREF mechanism.  %ref.att; is for optional
249        ref attributes, and %ref-req.att; is for required ref
250        attributes. -->
251<!ENTITY % ref.att
252        'ref                    IDREF           #IMPLIED'>
253<!ENTITY % ref-req.att
254        'ref                    IDREF           #REQUIRED'>
255
256<!--
257#1998-03-23: maler: Added show and actuate attributes to href.
258#                   Added semi-common xml:space attribute.
259-->
260
261<!--    HREF and source attributes:
262        Points to the element where more information or source data
263        can be found, using the URL (XLL simple link) mechanism.
264        For some purposes, is associated with additional XLL
265        attributes. %href.att; is for optional HREF attributes,
266        and %href-req.att; is for required HREF attributes.
267        %source-req.att; is for the source attribute, which
268        is always required. -->
269<!ENTITY % href.att
270        'xml:link               CDATA           #FIXED "simple"
271        href                    CDATA           #IMPLIED
272        show                    CDATA           #FIXED "embed"
273        actuate                 CDATA           #FIXED "auto"'>
274
275<!ENTITY % href-req.att
276        'xml:link               CDATA           #FIXED "simple"
277        href                    CDATA           #REQUIRED
278        show                    CDATA           #FIXED "embed"
279        actuate                 CDATA           #FIXED "auto"'>
280
281<!ENTITY % source-req.att
282        'xml:link               CDATA           #FIXED "simple"
283        xml:attributes          NMTOKENS        #FIXED "href source"
284        source                  CDATA           #REQUIRED
285        show                    CDATA           #FIXED "embed"
286        actuate                 CDATA           #FIXED "auto"'>
287
288<!--    xml:space attribute:
289        Indicates that the element contains white space
290        that the formatter or other application should retain,
291        as appropriate to its function. -->
292<!ENTITY % xmlspace.att
293        'xml:space              (default
294                                |preserve)      #FIXED "preserve"'>
295
296<!--    Common attributes:
297        Every element has an ID attribute (sometimes required,
298        but usually optional) for links, and a Role attribute
299        for extending the useful life of the DTD by allowing
300        authors to make subclasses for any element. %common.att;
301        is for common attributes where the ID is optional, and
302        %common-idreq.att; is for common attributes where the
303        ID is required. -->
304<!ENTITY % common.att
305        'id                     ID              #IMPLIED
306        role                    NMTOKEN         #IMPLIED'>
307<!ENTITY % common-idreq.att
308        'id                     ID              #REQUIRED
309        role                    NMTOKEN         #IMPLIED'>
310
311<!-- ............................................................... -->
312<!-- Common elements ............................................... -->
313
314<!--    head: Title on divisions, productions, and the like -->
315<!ELEMENT head (%head.pcd.mix;)*>
316<!ATTLIST head %common.att;>
317
318<!-- ............................................................... -->
319<!-- Major specification structure ................................. -->
320
321<!--
322#1998-03-10: maler: Made spec content model easily customizable.
323-->
324
325<!ELEMENT spec (%spec.mdl;)>
326<!ATTLIST spec %common.att;>
327
328<!ELEMENT front (div1+)>
329<!ATTLIST front %common.att;>
330
331<!ELEMENT body (div1+)>
332<!ATTLIST body %common.att;>
333
334<!--
335#1997-09-30: maler: Added inform-div1 to back content.
336-->
337
338<!ELEMENT back ((div1+, inform-div1*) | inform-div1+)>
339<!ATTLIST back %common.att;>
340
341<!ELEMENT div1 (head, (%div.mix;)*, div2*)>
342<!ATTLIST div1 %common.att;>
343
344<!--
345#1997-09-30: maler: Added inform-div1 declarations.
346-->
347
348<!--    inform-div1: Non-normative division in back matter -->
349<!ELEMENT inform-div1 (head, (%div.mix;)*, div2*)>
350<!ATTLIST inform-div1 %common.att;>
351
352<!ELEMENT div2 (head, (%div.mix;)*, div3*)>
353<!ATTLIST div2 %common.att;>
354
355<!ELEMENT div3 (head, (%div.mix;)*, div4*)>
356<!ATTLIST div3 %common.att;>
357
358<!ELEMENT div4 (head, (%div.mix;)*)>
359<!ATTLIST div4 %common.att;>
360
361<!-- Specification header .......... -->
362
363<!--
364#1998-03-10: maler: Made header content model easily customizable.
365-->
366
367<!ELEMENT header (%header.mdl;)>
368<!ATTLIST header %common.att;>
369
370<!--    Example of title: "Extensible Cheese Language (XCL)" -->
371<!ELEMENT title (#PCDATA)>
372<!ATTLIST title %common.att;>
373
374<!--    Example of subtitle: "A Cheesy Specification" -->
375<!ELEMENT subtitle (#PCDATA)>
376<!ATTLIST subtitle %common.att;>
377
378<!--    Example of version: "Version 666.0" -->
379<!ELEMENT version (#PCDATA)>
380<!ATTLIST version %common.att;>
381
382<!--    Example of w3c-designation: "WD-xcl-19991231" -->
383<!ELEMENT w3c-designation (#PCDATA)>
384<!ATTLIST w3c-designation %common.att;>
385
386<!--    Example of w3c-doctype: "World Wide Web Consortium Working
387        Draft" -->
388<!ELEMENT w3c-doctype (#PCDATA)>
389<!ATTLIST w3c-doctype %common.att;>
390
391<!--
392#1998-03-10: maler: Made pubdate content model easily customizable.
393-->
394
395<!ELEMENT pubdate (%pubdate.mdl;)>
396<!ATTLIST pubdate %common.att;>
397
398<!ELEMENT day (#PCDATA)>
399<!ATTLIST day %common.att;>
400
401<!ELEMENT month (#PCDATA)>
402<!ATTLIST month %common.att;>
403
404<!ELEMENT year (#PCDATA)>
405<!ATTLIST year %common.att;>
406
407<!--    Example of notice: "This draft is for public comment..." -->
408<!ELEMENT notice (%hdr.mix;)+>
409<!ATTLIST notice %common.att;>
410
411<!ELEMENT publoc (loc+)>
412<!ATTLIST publoc %common.att;>
413
414<!ELEMENT prevlocs (loc+)>
415<!ATTLIST prevlocs %common.att;>
416
417<!ELEMENT latestloc (loc+)>
418<!ATTLIST latestloc %common.att;>
419
420<!--      loc (defined in "Phrase-level elements" below) -->
421
422<!ELEMENT authlist (author+)>
423<!ATTLIST authlist %common.att;>
424
425<!--
426#1997-09-30: maler: Made affiliation optional.
427#1998-03-10: maler: Made email optional.
428-->
429
430<!ELEMENT author (name, affiliation?, email?)>
431<!ATTLIST author %common.att;>
432
433<!ELEMENT name (#PCDATA)>
434<!ATTLIST name
435        %common.att;
436        %key.att;>
437
438<!ELEMENT affiliation (#PCDATA)>
439<!ATTLIST affiliation %common.att;>
440
441<!ELEMENT email (#PCDATA)>
442<!--    HREF attribute:
443        email functions as a hypertext reference through this
444        required attribute.  Typically the reference would use
445        the mailto: scheme. -->
446<!ATTLIST email
447        %common.att;
448        %href-req.att;>
449
450<!--
451#1998-05-15: maler: Changed status content from %statusobj.mix;
452#                   to plain %obj.mix;.  statusp is obsolete.
453-->
454
455<!ELEMENT status (%obj.mix;)+>
456<!ATTLIST status %common.att;>
457
458<!ELEMENT abstract (%hdr.mix;)*>
459<!ATTLIST abstract %common.att;>
460
461<!ELEMENT pubstmt (%hdr.mix;)+>
462<!ATTLIST pubstmt %common.att;>
463
464<!ELEMENT sourcedesc (%hdr.mix;)+>
465<!ATTLIST sourcedesc %common.att;>
466
467<!ELEMENT langusage (language+)>
468<!ATTLIST langusage %common.att;>
469
470<!ELEMENT language (#PCDATA)>
471<!ATTLIST language %common.att;>
472
473<!ELEMENT revisiondesc (%hdr.mix;)+>
474<!ATTLIST revisiondesc %common.att;>
475
476<!-- ............................................................... -->
477<!-- Standalone elements ........................................... -->
478
479<!-- Paragraphs .................... -->
480
481<!--
482#1997-09-30: maler: Changed from %obj.mix; to %p.mix;.
483#1997-12-29: maler: Changed order of %p.mix; and %p.pcd.mix;
484#                   references.
485#1997-12-29: maler: Changed order of %statusobj.mix; and
486#                   %statusp.pcd.mix; references.
487#1998-05-14: maler: Removed statusp declarations.
488-->
489
490<!ELEMENT p (%p.pcd.mix;|%p.mix;)*>
491<!ATTLIST p %common.att;>
492
493<!-- Lists ......................... -->
494
495<!ELEMENT ulist (item+)>
496<!--    spacing attribute:
497        Use "normal" to get normal vertical spacing for items;
498        use "compact" to get less spacing.  The default is dependent
499        on the stylesheet. -->
500<!ATTLIST ulist
501        %common.att;
502        spacing         (normal|compact)        #IMPLIED>
503
504<!ELEMENT olist (item+)>
505<!--    spacing attribute:
506        Use "normal" to get normal vertical spacing for items;
507        use "compact" to get less spacing.  The default is dependent
508        on the stylesheet. -->
509<!ATTLIST olist
510        %common.att;
511        spacing         (normal|compact)        #IMPLIED>
512
513<!ELEMENT item (%obj.mix;)+>
514<!ATTLIST item %common.att;>
515
516<!ELEMENT slist (sitem+)>
517<!ATTLIST slist %common.att;>
518
519<!ELEMENT sitem (%p.pcd.mix;)*>
520<!ATTLIST sitem %common.att;>
521
522<!ELEMENT glist (gitem+)>
523<!ATTLIST glist %common.att;>
524
525<!ELEMENT gitem (label, def)>
526<!ATTLIST gitem %common.att;>
527
528<!ELEMENT label (%label.pcd.mix;)*>
529<!ATTLIST label %common.att;>
530
531<!ELEMENT def (%obj.mix;)*>
532<!ATTLIST def %common.att;>
533
534<!-- Special lists ................. -->
535
536<!ELEMENT blist (bibl+)>
537<!ATTLIST blist %common.att;>
538
539<!ELEMENT bibl (%bibl.pcd.mix;)*>
540<!--    HREF attribute:
541        bibl optionally functions as a hypertext reference to the
542        referred-to resource through this attribute. -->
543<!ATTLIST bibl
544        %common.att;
545        %href.att;
546        %key.att;>
547
548<!ELEMENT orglist (member+)>
549<!ATTLIST orglist %common.att;>
550
551<!--
552#1997-09-30: maler: Added optional affiliation.
553-->
554
555<!ELEMENT member (name, affiliation?, role?)>
556<!ATTLIST member %common.att;>
557
558<!--      name (defined in "Specification header" above) -->
559<!--      affiliation (defined in "Specification header" above) -->
560
561<!ELEMENT role (#PCDATA)>
562<!ATTLIST role %common.att;>
563
564<!-- Notes ......................... -->
565
566<!ELEMENT note (%obj.mix;)+>
567<!ATTLIST note %common.att;>
568
569<!--
570#1998-05-14: maler: Declared issue element.
571-->
572
573<!ELEMENT issue (%obj.mix;)+>
574<!ATTLIST issue %common-idreq.att;>
575
576<!ELEMENT wfcnote (head, (%obj.mix;)+)>
577<!--    ID attribute:
578        wfcnote must have an ID so that it can be pointed to
579        from a wfc element in a production. -->
580<!ATTLIST wfcnote
581        %common-idreq.att;>
582
583<!ELEMENT vcnote (head, (%obj.mix;)+)>
584<!--    ID attribute:
585        vcnote must have an ID so that it can be pointed to
586        from a vc element in a production. -->
587<!ATTLIST vcnote
588        %common-idreq.att;>
589
590<!--
591#1998-05-21: maler: Declared generic constraintnote element.
592-->
593
594<!ELEMENT constraintnote (head, (%obj.mix;)+)>
595<!--    ID attribute:
596        cnote must have an ID so that it can be pointed to
597        from a constraint element in a production. -->
598<!--    type attribute:
599        cnote must have a type value keyword so that it can be
600        correctly characterized in the specification. -->
601<!ATTLIST constraintnote
602        %common-idreq.att;
603        type            NMTOKEN         #REQUIRED>
604
605<!-- Illustrations ................. -->
606
607<!--
608#1998-03-23: maler: Added xml:space attribute.
609-->
610
611<!ELEMENT eg (%eg.pcd.mix;)*>
612<!ATTLIST eg
613        %common.att;
614        %xmlspace.att;>
615
616<!ELEMENT graphic EMPTY>
617<!--    source attribute:
618        The graphic data must reside at the location pointed to.
619        This is a hypertext reference, but for practical purposes,
620        for now it should just be a pathname. -->
621<!ATTLIST graphic
622        %common.att;
623        %source-req.att;
624        alt             CDATA           #IMPLIED>
625
626<!--
627#1997-11-28: maler: Added prodgroup to scrap and defined it.
628#1998-05-21: maler: Added constraint to prod.
629-->
630
631<!ELEMENT scrap (head, (prodgroup+ | prod+ | bnf))>
632<!--    lang attribute:
633        The scrap can link to a description of the language used,
634        found in a language element in the header. -->
635<!ATTLIST scrap
636        %common.att;
637        lang            IDREF           #IMPLIED>
638
639<!ELEMENT prodgroup (prod+)>
640<!--    pcw<n> attributes:
641        Presentational attributes to control the width
642        of the "pseudo-table" columns used to output
643        groups of productions. -->
644<!ATTLIST prodgroup
645        %common.att;
646        pcw1            CDATA           #IMPLIED
647        pcw2            CDATA           #IMPLIED
648        pcw3            CDATA           #IMPLIED
649        pcw4            CDATA           #IMPLIED
650        pcw5            CDATA           #IMPLIED
651>
652
653<!ELEMENT prod (lhs, (rhs, (com|wfc|vc|constraint)*)+)>
654<!--    ID attribute:
655        The production must have an ID so that cross-references
656        (specref) and mentions of nonterminals (nt) can link to
657        it. -->
658<!ATTLIST prod
659        %common-idreq.att;>
660
661<!ELEMENT lhs (#PCDATA)>
662<!ATTLIST lhs %common.att;>
663
664<!ELEMENT rhs (#PCDATA|nt|xnt|com)*>
665<!ATTLIST rhs %common.att;>
666
667<!--      nt and xnt (defined in "Phrase-level elements" below) -->
668
669<!--
670#1997-11-28: maler: Added loc and bibref to com content.
671-->
672
673<!ELEMENT com (#PCDATA|loc|bibref)*>
674<!ATTLIST com %common.att;>
675
676<!--    wfc: Should generate the head of the wfcnote pointed to -->
677<!ELEMENT wfc EMPTY>
678<!--    def attribute:
679        Each well formedness tagline in a production must link to the
680        wfcnote that defines it. -->
681<!ATTLIST wfc
682        %def-req.att;
683        %common.att;>
684
685<!--    vc: Should generate the head of the vcnote pointed to -->
686<!ELEMENT vc EMPTY>
687<!--    def attribute:
688        Each validity tagline in a production must link to the vcnote
689        that defines it. -->
690<!ATTLIST vc
691        %def-req.att;
692        %common.att;>
693
694<!--
695#1998-05-21: maler: Declared generic constraint element.
696-->
697
698<!--    constraint: Should generate the head of the constraintnote
699        pointed to -->
700<!ELEMENT constraint EMPTY>
701<!--    def attribute:
702        Each constraint tagline in a production must link to the
703        constraint note that defines it. -->
704<!ATTLIST constraint
705        %def-req.att;
706        %common.att;>
707
708<!--
709#1998-03-23: maler: Added xml:space attribute.
710-->
711
712<!--    bnf: Un-marked-up production -->
713<!ELEMENT bnf (%eg.pcd.mix;)*>
714<!ATTLIST bnf
715        %common.att;
716        %xmlspace.att;>
717
718<!--
719#1997-10-16: maler: Added table mechanism.
720#1997-11-28: maler: Added non-null system ID to entity declaration.
721#                   Added HTML table module.
722#1997-12-29: maler: IGNOREd SGML Open table model.
723#1998-03-10: maler: Removed SGML Open table model.
724#                   Merged html-tbl.mod file into main file.
725#                   Added %common.att; to all HTML table elements.
726#1998-05-14: maler: Replaced table model with full HTML 4.0 model.
727#                   Removed htable in favor of table.
728#                   Removed htbody in favor of tbody.
729-->
730
731<!ENTITY % cellhalign.att
732        'align          (left|center
733                        |right|justify
734                        |char)          #IMPLIED
735        char            CDATA           #IMPLIED
736        charoff         CDATA           #IMPLIED'>
737
738<!ENTITY % cellvalign.att
739        'valign         (top|middle
740                        |bottom
741                        |baseline)      #IMPLIED'>
742
743<!ENTITY % thtd.att
744        'abbr           CDATA           #IMPLIED
745        axis            CDATA           #IMPLIED
746        headers         IDREFS          #IMPLIED
747        scope           (row
748                        |col
749                        |rowgroup
750                        |colgroup)      #IMPLIED
751        rowspan         NMTOKEN         "1"
752        colspan         NMTOKEN         "1"'>
753
754<!ENTITY % width.att
755        'width          CDATA           #IMPLIED'>
756
757<!ENTITY % span.att
758        'span           NMTOKEN         "1"'>
759
760<!ELEMENT table
761        (caption?, (col*|colgroup*), thead?, tfoot?, tbody+)>
762<!ATTLIST table
763        %common.att;
764        %width.att;
765        summary         CDATA           #IMPLIED
766        border          CDATA           #IMPLIED
767        frame           (void|above
768                        |below|hsides
769                        |lhs|rhs
770                        |vsides|box
771                        |border)        #IMPLIED
772        rules           (none|groups
773                        |rows|cols
774                        |all)           #IMPLIED
775        cellspacing     CDATA           #IMPLIED
776        cellpadding     CDATA           #IMPLIED>
777
778<!ELEMENT caption (%p.pcd.mix;)*>
779<!ATTLIST caption %common.att;>
780
781<!ELEMENT col EMPTY>
782<!ATTLIST col
783        %common.att;
784        %span.att;
785        %width.att;
786        %cellhalign.att;
787        %cellvalign.att;>
788
789<!ELEMENT colgroup (col)*>
790<!ATTLIST colgroup
791        %common.att;
792        %span.att;
793        %width.att;
794        %cellhalign.att;
795        %cellvalign.att;>
796
797<!ELEMENT thead (tr)+>
798<!ATTLIST thead
799        %common.att;
800        %cellhalign.att;
801        %cellvalign.att;>
802
803<!ELEMENT tfoot (tr)+>
804<!ATTLIST tfoot
805        %common.att;
806        %cellhalign.att;
807        %cellvalign.att;>
808
809<!ELEMENT tbody (tr)+>
810<!ATTLIST tbody
811        %common.att;
812        %cellhalign.att;
813        %cellvalign.att;>
814
815<!ELEMENT tr (th|td)+>
816<!ATTLIST tr
817        %common.att;
818        %cellhalign.att;
819        %cellvalign.att;>
820
821<!ELEMENT th (%p.pcd.mix;|%p.mix;)*>
822<!ATTLIST th
823        %common.att;
824        %thtd.att;
825        %cellhalign.att;
826        %cellvalign.att;>
827
828<!ELEMENT td (%p.pcd.mix;|%p.mix;)*>
829<!ATTLIST td
830        %common.att;
831        %thtd.att;
832        %cellhalign.att;
833        %cellvalign.att;>
834
835<!-- ............................................................... -->
836<!-- Phrase-level elements ......................................... -->
837
838<!--    bibref: Should generate, in square brackets, "key" on bibl -->
839<!ELEMENT bibref EMPTY>
840<!--    ref attribute:
841        A bibliography reference must link to the bibl element that
842        describes the resource. -->
843<!ATTLIST bibref
844        %common.att;
845        %ref-req.att;>
846
847<!ELEMENT code (%tech.pcd.mix;)*>
848<!ATTLIST code %common.att;>
849
850<!--
851#1998-03-10: maler: Declared ednote and related elements.
852-->
853
854<!ELEMENT ednote (name?, date?, edtext)>
855<!ATTLIST ednote %common.att;>
856
857<!ELEMENT date (#PCDATA)>
858<!ATTLIST date %common.att;>
859
860<!ELEMENT edtext (#PCDATA)>
861<!ATTLIST edtext %common.att;>
862
863<!ELEMENT emph (#PCDATA)>
864<!ATTLIST emph %common.att;>
865
866<!--    footnote: Both footnote content and call to footnote -->
867<!ELEMENT footnote (%obj.mix;)+>
868<!ATTLIST footnote %common.att;>
869
870<!ELEMENT kw (%tech.pcd.mix;)*>
871<!ATTLIST kw %common.att;>
872
873<!ELEMENT loc (#PCDATA)>
874<!--    HREF attribute:
875        The purpose of a loc element is to function as a hypertext
876        link to a resource.  (Ideally, the content of loc will also
877        mention the URI of the resource, so that readers of the
878        printed version will be able to locate the resource.) -->
879<!ATTLIST loc
880        %common.att;
881        %href-req.att;>
882
883<!ELEMENT nt (#PCDATA)>
884<!--    def attribute:
885        The nonterminal must link to the production that defines
886        it. -->
887<!ATTLIST nt
888        %common.att;
889        %def-req.att;>
890
891<!--
892#1998-03-10: maler: Declared quote.
893-->
894
895<!--    quote: Scare quotes and other purely presentational quotes -->
896<!ELEMENT quote (%p.pcd.mix;)*>
897<!ATTLIST quote %common.att;>
898
899<!--    specref: Should generate italic "[n.n], Section Title" for
900        div, "n" for numbered item, "[n]" for production, or
901        "Issue n" for issue -->
902<!ELEMENT specref EMPTY>
903<!--    ref attribute:
904        The purpose of a specref element is to link to a div, item
905        in an olist, or production in the current spec. -->
906<!ATTLIST specref
907        %common.att;
908        %ref-req.att;>
909
910<!ELEMENT term (#PCDATA)>
911<!ATTLIST term %common.att;>
912
913<!ELEMENT termdef (%termdef.pcd.mix;|%termdef.mix;)*>
914<!--    ID attribute:
915        A term definition must have an ID so that it can be linked
916        to from termref elements. -->
917<!--    term attribute:
918        The canonical form of the term or phrase being defined must
919        appear in this attribute, even if the term or phrase also
920        appears in the element content in identical form (e.g., in
921        the term element). -->
922<!ATTLIST termdef
923        %common-idreq.att;
924        term            CDATA           #REQUIRED>
925
926<!ELEMENT termref (#PCDATA)>
927<!--    ref attribute:
928        A term reference must link to the termdef element that
929        defines the term. -->
930<!ATTLIST termref
931        %common.att;
932        %def-req.att;>
933
934<!ELEMENT titleref (#PCDATA)>
935<!--    HREF attribute:
936        A title reference can optionally function as a hypertext
937        link to the resource with this title. -->
938<!ATTLIST titleref
939        %common.att;
940        %href.att;>
941
942<!ELEMENT xnt (#PCDATA)>
943<!--    HREF attribute:
944        The nonterminal must hyperlink to a resource that serves
945        to define it (e.g., a production in a related XML
946        specification). -->
947<!ATTLIST xnt
948        %common.att;
949        %href-req.att;>
950
951<!--
952#1997-12-29: maler: Declared xspecref.
953-->
954
955<!ELEMENT xspecref (#PCDATA)>
956<!--    HREF attribute:
957        The spec reference must hyperlink to the resource to
958        cross-refer to (e.g., a section in a related XML
959        specification). -->
960<!ATTLIST xspecref
961        %common.att;
962        %href-req.att;>
963
964<!ELEMENT xtermref (#PCDATA)>
965<!--    HREF attribute:
966        The term reference must hyperlink to the resource that
967        serves to define the term (e.g., a term definition in
968        a related XML specification). -->
969<!ATTLIST xtermref
970        %common.att;
971        %href-req.att;>
972
973<!-- ............................................................... -->
974<!-- Unused elements for ADEPT ..................................... -->
975
976<!--
977#1997-09-30: maler: Added unusued elements.
978#1997-10-14: maler: Fixed div to move nested div to the mixture.
979#1998-05-14: maler: Added key-term, htable, and htbody.
980-->
981
982<!--    The following elements are purposely declared but never
983        referenced.  Declaring them allows them to be pasted from
984        an HTML document or an earlier version of an XML spec document
985        into a document using this DTD in ADEPT.  The ATD Context
986        Transformation mechanism will try to convert them to the
987        appropriate element for this DTD.  While this conversion
988        will not work for all fragments, it does allow many cases
989        to work reasonably well. -->
990
991<!ELEMENT div
992        (head?, (%div.mix;|ul|ol|h1|h2|h3|h4|h5|h6|div)*)>
993<!ELEMENT h1 (%head.pcd.mix;|em|a)*>
994<!ELEMENT h2 (%head.pcd.mix;|em|a)*>
995<!ELEMENT h3 (%head.pcd.mix;|em|a)*>
996<!ELEMENT h4 (%head.pcd.mix;|em|a)*>
997<!ELEMENT h5 (%head.pcd.mix;|em|a)*>
998<!ELEMENT h6 (%head.pcd.mix;|em|a)*>
999<!ELEMENT pre (%eg.pcd.mix;|em)*>
1000<!ELEMENT ul (item|li)*>
1001<!ELEMENT ol (item|li)*>
1002<!ELEMENT li (#PCDATA|%obj.mix;)*>
1003<!ELEMENT em (#PCDATA)>
1004<!ELEMENT a (#PCDATA)>
1005
1006<!ELEMENT key-term (#PCDATA)>
1007<!ELEMENT htable
1008        (caption?, (col*|colgroup*), thead?, tfoot?, tbody+)>
1009<!ELEMENT htbody (tr)+>
1010<!ELEMENT statusp (%p.pcd.mix;|%p.mix;)*>
1011
1012<!-- ............................................................... -->
1013<!-- Change history ................................................ -->
1014
1015<!--
1016#1997-08-18: maler
1017#- Did a major revision.
1018#1997-09-10: maler
1019#- Updated FPI.
1020#- Removed namekey element and put key attribute on name element.
1021#- Made statusp element and supporting entities.
1022#- Added slist element with sitem+ content.
1023#- Required head on scrap and added new bnf subelement.
1024#- Added an xnt element and allowed it and nt in regular text and rhs.
1025#- Removed the ntref element.
1026#- Added back the com element to the content of rhs.
1027#- Added a key attribute to bibl.
1028#- Removed the ident element.
1029#- Added a term element to be used inside termdef.
1030#- Added an xtermref element parallel to termref.
1031#- Beefed up DTD comments.
1032#1997-09-12: maler
1033#- Allowed term element in general text.
1034#- Changed bibref to EMPTY.
1035#- Added ref.class to termdef.pcd.mix.
1036#1997-09-14: maler
1037#- Changed main attribute of xtermref from def to href.
1038#- Added termdef.class to label contents.
1039#1997-09-30: maler
1040#- Added character entity module and added new entities.
1041#- Removed p from appearing directly in self; created %p.mix;.
1042#- Added inform-div (non-normative division) element.
1043#- Fixed xtermref comment to mention HREF, not ref.
1044#- Extended orglist model to allow optional affiliation.
1045#- Modified author to make affiliation optional.
1046#- Added %speclist.class; and %note.class; to %obj.mix; and %p.mix;.
1047#- Added %note.class; and %illus.class; to %termdef.pcd.mix;.
1048#- Added unused HTML elements.
1049#- Put empty system ID next to public ID in entity declarations.
1050#1997-10-14: maler
1051#- Fixed "unused" div content model to move nested div to mixture.
1052#1997-10-16: maler
1053#- Added SGML Open Exchange tables.
1054#1997-11-28: maler
1055#- Added support for prodgroup and its attributes.
1056#- Added support for HTML tables.
1057#- Added loc and bibref to content of com.
1058#- Added loc to general p content models.
1059#- Allowed p as alternative to statusp in status.
1060#- Added non-null system IDs to external parameter entity declarations.
1061#- (Modified the SGML Open table module to make it XML-compliant.)
1062#- (Modified the character entity module.)
1063#1997-12-29: maler
1064#- Moved #PCDATA occurrences to come before GIs in content models.
1065#- Removed use of the SGML Open table module.
1066#- Added xspecref element.
1067#- Ensured that all FPIs contain 4-digit year.
1068#- (Modified the character entity module.)
1069#1998-03-10: maler
1070#- Merged the character entity and table modules into the main file.
1071#- Added ldquo and rdquo entities.
1072#- Added common attributes to prodgroup.
1073#- Made the email element in header optional.
1074#- Removed reference to the SGML Open table model.
1075#- Added ednote element.
1076#- Added quote element.
1077#- Updated XLink usage to reflect 3 March 1998 WD.
1078#- Added "local" entities to the class entities for customization.
1079#- Parameterized several content models to allow for customization.
1080#1998-03-23: maler
1081#- Cleaned up some comments and removed some others.
1082#- Added xml:space semi-common attribute to eg and bnf elements.
1083#- Added show and embed attributes on all the uses of href.
1084#- Added %common.att; to all HTML table elements.
1085#- Added a real URI to the "typical invocation" comment.
1086#1998-05-14: maler
1087#- Fixed mdash, ldquo, and rdquo character entities.
1088#- Switched to the full HTML 4.0 table model.
1089#- Removed htable/htbody elements and replaced them with table/tbody.
1090#- Added issue element to %note.class; and declared it.
1091#- Allowed prevlocs and latestloc in either order.
1092#- Added key-term, htable, htbody, and statusp as unused elements.
1093#- Removed real statusp element in favor of plain p.
1094#1998-05-21: maler
1095#- Declared generic constraint and constraintnote elements.
1096#- Added constraintnote to %note.class;.
1097#- Added constraint to %eg.pcd.mix; and prod content model.
1098-->
1099
1100<!-- ............................................................... -->
1101<!-- End of XML specification DTD .................................. -->
1102<!-- ............................................................... -->