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Revision 1.8 - (hide annotations) (download)
Sat Apr 9 01:02:10 1994 UTC (32 years, 3 months ago) by connolly
Branch: MAIN
Changes since 1.7: +275 -128 lines 
* Added feature test entities for stuff that's handled different ways
by different HTML implementations or specifications.

* Removed %headelement, %bodyelement, %oldstyle, in favor of
using OMITTAG to infer <HEAD>, <BODY> tags.

* Changed %URL to %URI, and cited specification

* Revamped %linkattributes in light of feature test entities

* Revamped HTML, HEAD, elements in light of feature test entities

* Anchor names may or may not be ID's based on the HTML.anchorNameID
feature-test entity.

* Changed %inline to be composed of %phrase and %font, where
%font is controlled by %HTML.font-phrase

* Changed EM, CODE, SAMP, etc. from (#PCDATA) to (%htext)+

* Added P, BR to %text

* replaced %stext with %block and %htext

* Changed BODY, A content models.

* Added BR element

* Changed DL content model to (DT*, DD?)+, changed DT, DD from EMPTY
to containers with omissable end tags. This match all the cases I
found during testing.

* Changed OL, UL, etc. similarly

* Replaced ISO latin 1 entity declarations with an entity reference

* Added FORMs

* Removed emacs local-variable cruft
1 connolly 1.7 <!-- html.dtd
2    
3 connolly 1.6 Document Type Definition for the HyperText Markup Language
4     as used by the World Wide Web application (HTML DTD).
5 connolly 1.5
6 connolly 1.8 $Id: html.dtd,v 1.7 1994/04/01 19:21:25 connolly Exp $
7 connolly 1.2 -->
8    
9 connolly 1.8 <!-- Feature Test Entities -->
10    
11     <!-- To use these, write your document like:
12     <!DOCTYPE HTML [
13     <!ENTITY % HTML.Optional "INCLUDE">
14     <!ENTITY % html PUBLIC "-//connolly hal.com//DTD WWW HTML 1.8//EN">
15     %html;
16     ]>
17     <TITLE>Here's my doc</TITLE>
18     <p>It uses lots of optional features
19    
20     In practice, if you're using sgmls to validate your docs,
21     you can stick the <!DOCTYPE [...]> in a separate file and
22     validate with:
23     sgmls -s doctype.sgml foo.html
24     -->
25    
26     <!ENTITY % HTML.Minimal "IGNORE">
27     <!ENTITY % HTML.Obsolete "IGNORE">
28    
29     <![ %HTML.Minimal [
30     <!ENTITY % HTML.linkRelationships "IGNORE">
31     <!ENTITY % HTML.linkMethods "IGNORE">
32     <!ENTITY % HTML.linkRedundantInfo "IGNORE">
33     <!ENTITY % HTML.forms "IGNORE">
34     <!-- @@ nested lists -->
35     <!-- @@ phrases -->
36     ]]>
37    
38     <![ %HTML.Obsolete [
39     <!ENTITY % HTML.PLAINTEXT "INCLUDE">
40     <!ENTITY % HTML.titleCDATA "INCLUDE">
41     <!ENTITY % HTML.litCDATA "INCLUDE">
42     <!ENTITY % HTML.NEXTID "INCLUDE">
43     <!ENTITY % HTML.font-phrase "INCLUDE">
44     <!ENTITY % HTML.anchorNameCDATA "INCLUDE">
45     <!ENTITY % HTML.pSeparator "INCLUDE">
46     ]]>
47    
48     <!ENTITY % HTML.pSeparator "IGNORE"
49     -- use P element as paragraph separator, rather that container.
50     This means not all paragraphs need to start with a <P> tag.
51     -->
52    
53     <!ENTITY % HTML.linkRelationships "INCLUDE"
54     -- Adding markup to links to show the relationship between
55     ends of a link
56     see http://info.cern.ch/hypertext/WWW/MarkUp/Relationships.html
57     -->
58    
59     <!ENTITY % HTML.linkMethods "INCLUDE"
60     -- Adding markup to links to show the methods supported
61     by the referent object
62     see http://info.cern.ch/hypertext/WWW/MarkUp/Elements/A.html
63     -->
64    
65     <!ENTITY % HTML.linkRedundantInfo "INCLUDE"
66     -- Adding markup to links to give redundant information
67     like URN, content type, title...
68     -->
69    
70     <!ENTITY % HTML.anchorNameCDATA "IGNORE"
71     -- Anchor names should be distinct. SGML parser can validate
72     this if the NAME attribute of the A element is declared as ID.
73     But that restricts the syntax of an anchor name to an SGML name,
74     i.e. a letter followed by letters, numbers, periods and dashes,
75     up to NAMELEN (34) characters long.
76     -->
77    
78     <!ENTITY % HTML.PLAINTEXT "IGNORE"
79     -- Support for the <PLAINTEXT> tag as a sign of the
80     end of th HTML data stream and the beginning of a stream
81     of text/plain data
82     -->
83    
84     <!ENTITY % HTML.titleCDATA "IGNORE"
85     -- Is the TITLE element #PCDATA, RCDATA, or CDATA content?
86     On Mosaic, it's #PCDATA, but in the linemode browser,
87     it's more like CDATA, but not quite.
88     -->
89    
90     <!ENTITY % HTML.NEXTID "IGNORE"
91     -- Used by the NeXT implementation to keep track of the
92     next anchor id to use
93     -->
94    
95     <!ENTITY % HTML.font-phrase "IGNORE"
96     -- allow B, I, TT, U outside PRE,
97     CITE, VAR, etc. inside PRE
98     -->
99    
100     <!ENTITY % HTML.litCDATA "IGNORE"
101     -- treat XMP, LISTING as CDATA, as per linemodeWWW
102     -->
103    
104     <!ENTITY % HTML.forms "INCLUDE"
105     -- Support for forms as per
106     http://www.ncsa.uiuc.edu/SDG/Software/Mosaic/Docs/fill-out-forms/overview.html
107     -->
108    
109 connolly 1.3 <!-- DTD definitions -->
110    
111 connolly 1.2 <!ENTITY % heading "H1|H2|H3|H4|H5|H6" >
112 connolly 1.6 <!ENTITY % list " UL | OL | DIR | MENU ">
113     <!ENTITY % literal " XMP | LISTING ">
114 connolly 1.2
115 connolly 1.8 <!ENTITY % URI "CDATA"
116     -- The term URI means a CDATA attribute
117     whose value is a Uniform Resource Identifier,
118     as defined by
119     "Universal Resource Identifiers" by Tim Berners-Lee
120     aka http://info.cern.ch/hypertext/WWW/Addressing/URL/URI_Overview.html
121    
122     Note that CDATA attributes are limited by the LITLEN
123     capacity (1024 in the current version of html.decl),
124     so that URIs in HTML have a bounded length.
125     -->
126    
127     <!ENTITY % Content-Type "CDATA"
128     -- meaning a MIME content type, as per RFC1341 or any of its updates.
129     -->
130 connolly 1.2
131 connolly 1.8 <![ %HTML.anchorNameCDATA [ <!ENTITY % anchor-name "CDATA"> ]]>
132     <!ENTITY % anchor-name "ID">
133 connolly 1.6
134 connolly 1.8 <![ %HTML.linkRelationships [ <!ENTITY % linkRelAttrs "
135 connolly 1.6 REL CDATA #IMPLIED -- forward relationship type --
136     REV CDATA #IMPLIED -- reversed relationship type
137     to referent data:
138    
139     PARENT CHILD, SIBLING, NEXT, TOP,
140     DEFINITION, UPDATE, ORIGINAL etc. --
141 connolly 1.8 "> ]]>
142     <!ENTITY % linkRelAttrs "">
143 connolly 1.6
144 connolly 1.8