pub/test/html.dtd

<!--    html.dtd

        Document Type Definition for the HyperText Markup Language
        as used by the World Wide Web (HTML DTD).

        $Id: html.dtd,v 1.12 1994/05/17 21:07:53 connolly Exp $

        Author: Daniel W. Connolly <connolly@hal.com>
        See Also: http://www.hal.com/%7Econnolly/html-spec/HTML.html
                  http://info.cern.ch/hypertext/WWW/MarkUp/MarkUp.html
-->

<!ENTITY HTML.Version
        "-//connolly hal.com//DTD WWW HTML $Date 1994/04/19 17:24:06 $//EN"
        -- public identifier for "current pracitice" version             -- 
        -- actually, take the $'s out to get the real public identifer,  --
        -- since $ is illegal in public identifier. When DTD stabilizes, --
        -- we'll need to stop using RCS keywords to version the pub id   --

        -- Typical usage:

            <!DOCTYPE HTML PUBLIC "-//connolly hal.com//DTD WWW HTML
                                                $Date$//EN">
            <html>
            ...
            </html>
        --
        >


<!-- Feature Test Entities -->

<!-- To use these, write your document like:
        <!DOCTYPE HTML [
        <!ENTITY % HTML.Optional "INCLUDE">
        <!ENTITY % html PUBLIC "-//connolly hal.com//DTD WWW HTML 1.8//EN">
        %html;
        ]>
        <TITLE>Here's my doc</TITLE>
        <p>It uses lots of optional features

 In practice, if you're using sgmls to validate your docs,
 you can stick the <!DOCTYPE [...]> in a separate file and
 validate with:
        sgmls -s doctype.sgml foo.html
 -->

<!ENTITY % HTML.Minimal  "IGNORE">
<!ENTITY % HTML.Obsolete "IGNORE">
<!ENTITY % HTML.Prescriptive "IGNORE">

<![ %HTML.Minimal [
        <!ENTITY % HTML.linkRelationships "IGNORE">
        <!ENTITY % HTML.linkMethods "IGNORE">
        <!ENTITY % HTML.linkRedundantInfo "IGNORE">
        <!ENTITY % HTML.forms "IGNORE">
        <!-- @@ nested lists -->
        <!-- @@ phrases -->
        <!-- @@ headers inside A -->
        <!-- @@ nested phrases, fonts -->
        ]]>
        
<![ %HTML.Obsolete [
        <!ENTITY % HTML.titleCDATA "INCLUDE">
        <!ENTITY % HTML.litCDATA "INCLUDE">
        <!ENTITY % HTML.pSeparator "INCLUDE">
        ]]>

<![ %HTML.Prescriptive [
        <!--
        This feature test entity prescribes that certain
        idioms detract from the structural integrity of an
        HTML document, and are therefore disallowed.
        -->
        <!ENTITY % HTML.font-phrase "IGNORE">
        <!ENTITY % HTML.anchorNameCDATA "IGNORE">
        <!ENTITY % HTML.PLAINTEXT "IGNORE">
        <!ENTITY % HTML.bodyBlockOnly "INCLUDE">
        ]]>

<!ENTITY % HTML.bodyBlockOnly "IGNORE"
        -- only allow block elements in the BODY element
        This means all paragraphs need to start with a <P> tag.
        -->

<!ENTITY % HTML.pSeparator "IGNORE"
        -- use P element as paragraph separator, rather that container.
        -->

<!ENTITY % HTML.linkRelationships "INCLUDE"
        -- Adding markup to links to show the relationship between
        ends of a link
        see http://info.cern.ch/hypertext/WWW/MarkUp/Relationships.html
        -->

<!ENTITY % HTML.linkMethods "INCLUDE"
        -- Adding markup to links to show the methods supported
        by the referent object
        see http://info.cern.ch/hypertext/WWW/MarkUp/Elements/A.html
        -->

<!ENTITY % HTML.linkRedundantInfo "INCLUDE"
        -- Adding markup to links to give redundant information
        like URN, content type, title...
        -->

<!ENTITY % HTML.anchorNameCDATA "INCLUDE"
        -- Anchor names should be distinct. SGML parser can validate
        this if the NAME attribute of the A element is declared as ID.
        But that restricts the syntax of an anchor name to an SGML name,
        i.e. a letter followed by letters, numbers, periods and dashes,
        up to NAMELEN (34) characters long.
        -->

<!ENTITY % HTML.PLAINTEXT "INCLUDE"
        -- Support for the <PLAINTEXT> tag as a sign of the
        end of th HTML data stream and the beginning of a stream
        of text/plain data
        -->

<!ENTITY % HTML.titleCDATA "IGNORE"
        -- Is the TITLE element #PCDATA, RCDATA, or CDATA content?
        On Mosaic, it's #PCDATA, but in the linemode browser,
        it's more like CDATA, but not quite.
        -->

<!ENTITY % HTML.NEXTID "INCLUDE"
        -- Used by the NeXT implementation to keep track of the
        next anchor id to use
        -->

<!ENTITY % HTML.font-phrase "INCLUDE"
        -- allow B, I, TT, U outside PRE,
        CITE, VAR, etc. inside PRE
        -->

<!ENTITY % HTML.KEY "IGNORE"
        -- There was once a KEY element, for keyboard keys, menu items,
        buttons, etc. but it's not supported or widely documented
        -->

<!ENTITY % HTML.U "IGNORE"
        -- There was also a U element, but since it clashes with
        the common pracitce of underlining hypertext links, it is
        not widely supported
        -->

<!ENTITY % HTML.litCDATA "IGNORE"
        -- treat XMP, LISTING as CDATA, as per linemodeWWW
        -->

<!ENTITY % HTML.forms "INCLUDE"
        -- Support for forms as per
http://www.ncsa.uiuc.edu/SDG/Software/Mosaic/Docs/fill-out-forms/overview.html
        -->

<!-- DTD definitions -->

<!ENTITY % heading "H1|H2|H3|H4|H5|H6" >
<!ENTITY % list " UL | OL | DIR | MENU ">
<!ENTITY % literal " XMP | LISTING ">

<!ENTITY % URI "CDATA"
        -- The term URI means a CDATA attribute
           whose value is a Uniform Resource Identifier,
           as defined by 
        "Universal Resource Identifiers" by Tim Berners-Lee
        aka http://info.cern.ch/hypertext/WWW/Addressing/URL/URI_Overview.html

        Note that CDATA attributes are limited by the LITLEN
        capacity (1024 in the current version of html.decl),
        so that URIs in HTML have a bounded length.

        @@ Need to discuss relative addresses.
        -->

<!ENTITY % Content-Type "CDATA"
        -- meaning a MIME content type, as per RFC1521
        -->

<![ %HTML.anchorNameCDATA [ <!ENTITY % anchor-name "CDATA"> ]]>
<!ENTITY % anchor-name "ID">

<![ %HTML.linkRelationships [ <!ENTITY % linkRelAttrs "
        REL CDATA #IMPLIED -- forward relationship type --
        REV CDATA #IMPLIED -- reversed relationship type
                              to referent data:

                                PARENT CHILD, SIBLING, NEXT, TOP,
                                DEFINITION, UPDATE, ORIGINAL etc. --
        "> ]]>
<!ENTITY % linkRelAttrs "">

<![ %HTML.linkRedundantInfo [ <!ENTITY % linkRedundantAttrs "
        URN CDATA #IMPLIED -- universal resource number --

        TITLE CDATA #IMPLIED -- advisory only --
        "> ]]>
<!ENTITY % linkRedundantAttrs "">

<![ %HTML.linkMethods [ <!ENTITY % linkMethodAttrs "
        METHODS NAMES #IMPLIED -- supported public methods of the object:
                                        TEXTSEARCH, GET, HEAD, ... --
        "> ]]>
<!ENTITY % linkMethodAttrs "">

<!ENTITY % linkattributes
        "NAME %anchor-name #IMPLIED
        HREF %URI;  #IMPLIED
        %linkRelAttrs;
        %linkRedundantAttrs;
        %linkMethodAttrs;
        ">


<!-- Document Element -->


<![ %HTML.PLAINTEXT [ <!ENTITY % obsolete-plaintext ", PLAINTEXT?"> ]]>
<!ENTITY % obsolete-plaintext "">

<!ENTITY % html-content "HEAD, BODY %obsolete-plaintext;">
<!ELEMENT HTML O O  (%html-content)>

<![ %HTML.NEXTID [  <!ENTITY % head-content "TITLE? & ISINDEX? & LINK* & BASE?
                        & NEXTID?"> ]]>
<!ENTITY % head-content "TITLE & ISINDEX? & LINK* & BASE?">
<!ELEMENT HEAD O O  (%head-content)>

<![ %HTML.titleCDATA [ <!ENTITY % title-content "CDATA"> ]]>
<!ENTITY % title-content "(#PCDATA)">
<!ELEMENT TITLE - -  %title-content
          -- The TITLE element is not considered part of the flow of text.
             It should be displayed, for example as the page header or
             window title.
          -->

<!ELEMENT ISINDEX - O EMPTY
          -- WWW clients should offer the option to perform a search on
             documents containing ISINDEX.
          -->

<!ELEMENT NEXTID - O EMPTY>
<!ATTLIST NEXTID N %anchor-name #REQUIRED
          -- The number should be a name suitable for use
             for the ID of a new element. When used, the value
             has its numeric part incremented. EG Z67 becomes Z68
          -->
<!ELEMENT LINK - O EMPTY>
<!ATTLIST LINK
        %linkattributes>
        
<!ELEMENT BASE - O EMPTY    -- Reference context for URIs -->
<!ATTLIST BASE

        HREF %URI; #REQUIRED

        >

<![ %HTML.KEY [
        <!ENTITY % key-emph "| KEY">
        ]]>
<!ENTITY % key-emph "">

<![ %HTML.U [
        <!ENTITY % u-font "| U">
        ]]>
<!ENTITY % u-font "">

<!ENTITY % font "TT | B | I %u-font">
<!ENTITY % phrase "EM | STRONG | CODE | SAMP | KBD | VAR | DFN | CITE
         | STRIKE %key-emph">


<![ %HTML.font-phrase [
        <!ENTITY % obsolete-font "| %font">
        <!ENTITY % obsolete-phrase "| %phrase">
        ]]>
<!ENTITY % obsolete-font "">
<!ENTITY % obsolete-phrase "">
<![ %HTML.pSeparator [
        <!ENTITY % obsolete-p "| P">
        ]]>
<!ENTITY % obsolete-p "">

<!ENTITY % inline "%phrase %obsolete-font">
<!ENTITY % pre-inline "%font %obsolete-phrase %obsolete-p">

<!ENTITY % text "#PCDATA | IMG | %inline | BR %obsolete-p">

<!ENTITY % htext "A | %text"    -- Plus links, no structure -->

<![ %HTML.font-phrase [ <!ENTITY % font-content "(%htext)+"> ]]>
<!ENTITY % font-content "#PCDATA">
<!ELEMENT (%font;) - - (%font-content;)>

<!ELEMENT (%phrase;) - - (%htext)+>

<!ENTITY % pre "PRE | XMP | LISTING">

<![ %HTML.forms [ <!ENTITY % block-form "| FORM | ISINDEX"> ]]>
<!ENTITY % block-form "">

<![ %HTML.pSeparator [
        <!ENTITY % obsolete-htext "| %htext">
        <!ENTITY % block-p "">
        ]]>
<!ENTITY % obsolete-htext "| A">
<!ENTITY % block-p "| P ">

<!ENTITY % block "HR | %list | DL
                | %pre | BLOCKQUOTE | ADDRESS 
                %block-form %block-p">


<![ %HTML.bodyBlockOnly [
        <!ENTITY % current-htext "">
        ]]>
<!ENTITY % current-htext "| %htext">

<!ENTITY % body-content "%heading | %block %current-htext">
<!ELEMENT BODY O O  (%body-content)*>


<!ELEMENT A     - - (%heading|%block|%text)+ -(A)
        -- @# Technically, this allows silliness like:
                <H2><A>xyz<H1>h1</H1></A></H2>
        The right way to do anchors outside of %htext is more like:
                <as id=z1><H2>lkjlkj</h2><ae start=z1>
        -->
<!ATTLIST A
        %linkattributes;
        >

<!ELEMENT IMG    - O EMPTY --  Embedded image -->
<!ATTLIST IMG
        SRC %URI;  #IMPLIED     -- URI of document to embed --
        ALT CDATA #IMPLIED
        ALIGN (top|middle|bottom) #IMPLIED
        ISMAP (ISMAP) #IMPLIED
        >


<![ %HTML.pSeparator [ <!ENTITY % p-content "EMPTY"> ]]>
<!ENTITY % p-content "(%htext)+">
<!ELEMENT P     - O %p-content>
<!ELEMENT HR    - O EMPTY -- horizontal rule -->
<!ELEMENT BR    - O EMPTY -- @# BR -> &br; -->

<!ELEMENT ( %heading )  - -  (%htext;)+>

<!ELEMENT DL    - -  (DT*, DD?)+>
<!ATTLIST DL
        COMPACT (COMPACT) #IMPLIED>

<!ELEMENT DT    - O (%htext)+>
<!ELEMENT DD    - O (%htext|%block)+>

<!ELEMENT (%list) - -  (LI)+>

<!ELEMENT LI    - O (%htext|%block)+>

<!ELEMENT BLOCKQUOTE - - (%htext|%block)+ -- @# Hmm... --
        -- for quoting some other source -->

<!ELEMENT ADDRESS - - (%htext;|%block)+>

<!ELEMENT PRE - - (#PCDATA|%pre-inline|A)+>
<!ATTLIST PRE
        WIDTH NUMBER #implied
        >

<!-- Mnemonic character entities. -->

<!ENTITY % ISOlat1 PUBLIC
  "ISO 8879:1986//ENTITIES Added Latin 1//EN">
%ISOlat1;

<!ENTITY #DEFAULT SDATA "&#38;unkown;" --display the markup-->
<!ENTITY amp CDATA "&#38;"     -- ampersand -->
<!ENTITY gt CDATA "&#62;"      -- greater than -->
<!ENTITY lt CDATA "&#60;"      -- less than -->
<!ENTITY quot CDATA "&#34;"    -- double quote -->

<!-- Processing Entities -->

<!ENTITY nbsp "<? nonbreaking-space>">
<!-- @# should add entites for processing instructions
        for line break, centering, etc. -->


<!-- Forms  -->
<![ %HTML.forms [

<!ENTITY % HTTP-Method "(GET | POST)">
<!ELEMENT FORM - - (%body-content)* -(FORM) +(INPUT|SELECT|TEXTAREA)>
<!ATTLIST FORM
        ACTION %URI #REQUIRED
        METHOD %HTTP-Method #IMPLIED -- @# MAILTO? --
        ENCTYPE %Content-Type; #IMPLIED
        >

<!ENTITY % InputType "(TEXT | PASSWORD | CHECKBOX |
                        RADIO | SUBMIT | RESET |
                        IMAGE | HIDDEN )">
<!ELEMENT INPUT - O EMPTY>
<!ATTLIST INPUT
        TYPE %InputType #IMPLIED -- @# defaults to TEXT?? --
        NAME CDATA #IMPLIED -- required for all but submit and reset --
        VALUE CDATA #IMPLIED
        SRC %URI #IMPLIED -- for image inputs -- 
        CHECKED (CHECKED) #IMPLIED
        SIZE CDATA #IMPLIED -- @# should be NUMBERS: delimit with space, not comma --
        MAXLENGTH NUMBER #IMPLIED
        ALIGN (top|middle|bottom|left|center|right) #IMPLIED --@#supported?--
        >

<!ELEMENT SELECT - - (OPTION+)>
<!ATTLIST SELECT
        NAME CDATA #REQUIRED
        SIZE NUMBER #IMPLIED
        MULTIPLE (MULTIPLE) #IMPLIED
        >

<!ELEMENT OPTION - O (#PCDATA)>
<!ATTLIST OPTION
        SELECTED (SELECTED) #IMPLIED
        VALUE CDATA #IMPLIED
        >

<!ELEMENT TEXTAREA - - (#PCDATA)>
<!ATTLIST TEXTAREA
        NAME CDATA #REQUIRED
        ROWS NUMBER #REQUIRED -- @#implied? --
        COLS NUMBER #REQUIRED
        >
]]>

<!-- Obsolete Elements  -->

<![ %HTML.litCDATA [ <!ENTITY % lit-content "CDATA"> ]]>
<!ENTITY % lit-content "RCDATA">
<!ELEMENT (%literal) - -  %lit-content>

<![ %HTML.PLAINTEXT [
<!ELEMENT PLAINTEXT - O EMPTY>
]]>
1	connolly	1.7	<!-- html.dtd
2
3	connolly	1.6	Document Type Definition for the HyperText Markup Language
4	connolly	1.13	as used by the World Wide Web (HTML DTD).
5	connolly	1.5
6	connolly	1.13	$Id: html.dtd,v 1.12 1994/05/17 21:07:53 connolly Exp $
7	connolly	1.11
8	connolly	1.13	Author: Daniel W. Connolly <connolly@hal.com>
9			See Also: http://www.hal.com/%7Econnolly/html-spec/HTML.html
10			http://info.cern.ch/hypertext/WWW/MarkUp/MarkUp.html
11	connolly	1.2	-->
12
13	connolly	1.13	<!ENTITY HTML.Version
14			"-//connolly hal.com//DTD WWW HTML $Date 1994/04/19 17:24:06 $//EN"
15			-- public identifier for "current pracitice" version --
16			-- actually, take the $'s out to get the real public identifer, --
17			-- since $ is illegal in public identifier. When DTD stabilizes, --
18			-- we'll need to stop using RCS keywords to version the pub id --
19
20			-- Typical usage:
21
22			<!DOCTYPE HTML PUBLIC "-//connolly hal.com//DTD WWW HTML
23			$Date$//EN">
24			<html>
25			...
26			</html>
27			--
28			>
29
30
31	connolly	1.8	<!-- Feature Test Entities -->
32
33			<!-- To use these, write your document like:
34			<!DOCTYPE HTML [
35			<!ENTITY % HTML.Optional "INCLUDE">
36			<!ENTITY % html PUBLIC "-//connolly hal.com//DTD WWW HTML 1.8//EN">
37			%html;
38			]>
39			<TITLE>Here's my doc</TITLE>
40			<p>It uses lots of optional features
41
42			In practice, if you're using sgmls to validate your docs,
43			you can stick the <!DOCTYPE [...]> in a separate file and
44			validate with:
45			sgmls -s doctype.sgml foo.html
46			-->
47
48			<!ENTITY % HTML.Minimal "IGNORE">
49			<!ENTITY % HTML.Obsolete "IGNORE">
50	connolly	1.11	<!ENTITY % HTML.Prescriptive "IGNORE">
51	connolly	1.8
52			<![ %HTML.Minimal [
53			<!ENTITY % HTML.linkRelationships "IGNORE">
54			<!ENTITY % HTML.linkMethods "IGNORE">
55			<!ENTITY % HTML.linkRedundantInfo "IGNORE">
56			<!ENTITY % HTML.forms "IGNORE">
57			<!-- @@ nested lists -->
58			<!-- @@ phrases -->
59	connolly	1.11	<!-- @@ headers inside A -->
60			<!-- @@ nested phrases, fonts -->
61	connolly	1.8	]]>
62
63			<![ %HTML.Obsolete [
64			<!ENTITY % HTML.titleCDATA "INCLUDE">
65			<!ENTITY % HTML.litCDATA "INCLUDE">
66			<!ENTITY % HTML.pSeparator "INCLUDE">
67			]]>
68
69	connolly	1.11	<![ %HTML.Prescriptive [
70	connolly	1.12	<!--
71			This feature test entity prescribes that certain
72			idioms detract from the structural integrity of an
73			HTML document, and are therefore disallowed.
74			-->
75	connolly	1.11	<!ENTITY % HTML.font-phrase "IGNORE">
76			<!ENTITY % HTML.anchorNameCDATA "IGNORE">
77			<!ENTITY % HTML.PLAINTEXT "IGNORE">
78	connolly	1.12	<!ENTITY % HTML.bodyBlockOnly "INCLUDE">
79	connolly	1.11	]]>
80
81	connolly	1.12	<!ENTITY % HTML.bodyBlockOnly "IGNORE"
82			-- only allow block elements in the BODY element
83			This means all paragraphs need to start with a <P> tag.
84			-->
85	connolly	1.9
86	connolly	1.8	<!ENTITY % HTML.pSeparator "IGNORE"
87			-- use P element as paragraph separator, rather that container.
88			-->
89
90			<!ENTITY % HTML.linkRelationships "INCLUDE"
91			-- Adding markup to links to show the relationship between
92			ends of a link
93			see http://info.cern.ch/hypertext/WWW/MarkUp/Relationships.html
94			-->
95
96			<!ENTITY % HTML.linkMethods "INCLUDE"
97			-- Adding markup to links to show the methods supported
98			by the referent object
99			see http://info.cern.ch/hypertext/WWW/MarkUp/Elements/A.html
100			-->
101
102			<!ENTITY % HTML.linkRedundantInfo "INCLUDE"
103			-- Adding markup to links to give redundant information
104			like URN, content type, title...
105			-->
106
107	connolly	1.11	<!ENTITY % HTML.anchorNameCDATA "INCLUDE"
108	connolly	1.8	-- Anchor names should be distinct. SGML parser can validate
109			this if the NAME attribute of the A element is declared as ID.
110			But that restricts the syntax of an anchor name to an SGML name,
111			i.e. a letter followed by letters, numbers, periods and dashes,
112			up to NAMELEN (34) characters long.
113			-->
114
115	connolly	1.11	<!ENTITY % HTML.PLAINTEXT "INCLUDE"
116	connolly	1.8	-- Support for the <PLAINTEXT> tag as a sign of the
117			end of th HTML data stream and the beginning of a stream
118			of text/plain data
119			-->
120
121			<!ENTITY % HTML.titleCDATA "IGNORE"
122			-- Is the TITLE element #PCDATA, RCDATA, or CDATA content?
123			On Mosaic, it's #PCDATA, but in the linemode browser,
124			it's more like CDATA, but not quite.
125			-->
126
127	connolly	1.9	<!ENTITY % HTML.NEXTID "INCLUDE"
128	connolly	1.8	-- Used by the NeXT implementation to keep track of the
129			next anchor id to use
130			-->
131
132	connolly	1.11	<!ENTITY % HTML.font-phrase "INCLUDE"
133	connolly	1.8	-- allow B, I, TT, U outside PRE,
134			CITE, VAR, etc. inside PRE
135			-->
136
137	connolly	1.12	<!ENTITY % HTML.KEY "IGNORE"
138			-- There was once a KEY element, for keyboard keys, menu items,
139			buttons, etc. but it's not supported or widely documented
140			-->
141
142			<!ENTITY % HTML.U "IGNORE"
143			-- There was also a U element, but since it clashes with
144			the common pracitce of underlining hypertext links, it is
145			not widely supported
146			-->
147
148	connolly	1.8	<!ENTITY % HTML.litCDATA "IGNORE"
149			-- treat XMP, LISTING as CDATA, as per linemodeWWW
150			-->
151
152			<!ENTITY % HTML.forms "INCLUDE"
153			-- Support for forms as per
154			http://www.ncsa.uiuc.edu/SDG/Software/Mosaic/Docs/fill-out-forms/overview.html
155			-->
156
157	connolly	1.3	<!-- DTD definitions -->
158
159	connolly	1.2	<!ENTITY % heading "H1\|H2\|H3\|H4\|H5\|H6" >
160	connolly	1.6	<!ENTITY % list " UL \| OL \| DIR \| MENU ">
161			<!ENTITY % literal " XMP \| LISTING ">
162	connolly	1.2
163	connolly	1.8	<!ENTITY % URI "CDATA"
164			-- The term URI means a CDATA attribute
165			whose value is a Uniform Resource Identifier,
166			as defined by
167			"Universal Resource Identifiers" by Tim Berners-Lee
168			aka http://info.cern.ch/hypertext/WWW/Addressing/URL/URI_Overview.html
169
170			Note that CDATA attributes are limited by the LITLEN
171			capacity (1024 in the current version of html.decl),
172			so that URIs in HTML have a bounded length.
173	connolly	1.12
174			@@ Need to discuss relative addresses.
175	connolly	1.8	-->
176
177			<!ENTITY % Content-Type "CDATA"
178	connolly	1.12	-- meaning a MIME content type, as per RFC1521
179	connolly	1.8	-->
180	connolly	1.2
181	connolly	1.8	<![ %HTML.anchorNameCDATA [ <!ENTITY % anchor-name "CDATA"> ]]>
182			<!ENTITY % anchor-name "ID">
183	connolly	1.6
184	connolly	1.8	<![ %HTML.linkRelationships [ <!ENTITY % linkRelAttrs "
185	connolly	1.6	REL CDATA #IMPLIED -- forward relationship type --
186			REV CDATA #IMPLIED -- reversed relationship type
187			to referent data:
188
189			PARENT CHILD, SIBLING, NEXT, TOP,
190			DEFINITION, UPDATE, ORIGINAL etc. --
191	connolly	1.8	"> ]]>
192			<!ENTITY % linkRelAttrs "">
193	connolly	1.6
194	connolly	1.8	<![ %HTML.linkRedundantInfo [ <!ENTITY % linkRedundantAttrs "
195	connolly	1.6	URN CDATA #IMPLIED -- universal resource number --
196
197			TITLE CDATA #IMPLIED -- advisory only --
198	connolly	1.8	"> ]]>
199			<!ENTITY % linkRedundantAttrs "">
200	connolly	1.5
201	connolly	1.8	<![ %HTML.linkMethods [ <!ENTITY % linkMethodAttrs "
202	connolly	1.6	METHODS NAMES #IMPLIED -- supported public methods of the object:
203			TEXTSEARCH, GET, HEAD, ... --
204	connolly	1.8	"> ]]>
205			<!ENTITY % linkMethodAttrs "">
206	connolly	1.3
207	connolly	1.8	<!ENTITY % linkattributes
208			"NAME %anchor-name #IMPLIED
209			HREF %URI; #IMPLIED
210			%linkRelAttrs;
211			%linkRedundantAttrs;
212			%linkMethodAttrs;
213	connolly	1.6	">
214
215
216	connolly	1.4	<!-- Document Element -->
217	connolly	1.2
218
219	connolly	1.9	<![ %HTML.PLAINTEXT [ <!ENTITY % obsolete-plaintext ", PLAINTEXT?"> ]]>
220			<!ENTITY % obsolete-plaintext "">
221
222	connolly	1.12	<!ENTITY % html-content "HEAD, BODY %obsolete-plaintext;">
223	connolly	1.8	<!ELEMENT HTML O O (%html-content)>
224
225			<![ %HTML.NEXTID [ <!ENTITY % head-content "TITLE? & ISINDEX? & LINK* & BASE?
226			& NEXTID?"> ]]>
227			<!ENTITY % head-content "TITLE & ISINDEX? & LINK* & BASE?">
228			<!ELEMENT HEAD O O (%head-content)>
229
230			<![ %HTML.titleCDATA [ <!ENTITY % title-content "CDATA"> ]]>
231			<!ENTITY % title-content "(#PCDATA)">
232			<!ELEMENT TITLE - - %title-content
233	connolly	1.6	-- The TITLE element is not considered part of the flow of text.
234			It should be displayed, for example as the page header or
235			window title.
236			-->
237	connolly	1.2
238			<!ELEMENT ISINDEX - O EMPTY
239	connolly	1.6	-- WWW clients should offer the option to perform a search on
240			documents containing ISINDEX.
241			-->
242
243	connolly	1.2	<!ELEMENT NEXTID - O EMPTY>
244	connolly	1.8	<!ATTLIST NEXTID N %anchor-name #REQUIRED
245	connolly	1.6	-- The number should be a name suitable for use
246			for the ID of a new element. When used, the value
247			has its numeric part incremented. EG Z67 becomes Z68
248			-->
249			<!ELEMENT LINK - O EMPTY>
250			<!ATTLIST LINK
251			%linkattributes>
252
253	connolly	1.8	<!ELEMENT BASE - O EMPTY -- Reference context for URIs -->
254	connolly	1.6	<!ATTLIST BASE
255
256	connolly	1.12	HREF %URI; #REQUIRED
257	connolly	1.6
258			>
259	connolly	1.8
260	connolly	1.12	<![ %HTML.KEY [
261			<!ENTITY % key-emph "\| KEY">
262			]]>
263			<!ENTITY % key-emph "">
264
265			<![ %HTML.U [
266			<!ENTITY % u-font "\| U">
267			]]>
268			<!ENTITY % u-font "">
269
270			<!ENTITY % font "TT \| B \| I %u-font">
271			<!ENTITY % phrase "EM \| STRONG \| CODE \| SAMP \| KBD \| VAR \| DFN \| CITE
272			\| STRIKE %key-emph">
273	connolly	1.8
274	connolly	1.12
275	connolly	1.8	<![ %HTML.font-phrase [
276			<!ENTITY % obsolete-font "\| %font">
277			<!ENTITY % obsolete-phrase "\| %phrase">
278			]]>
279			<!ENTITY % obsolete-font "">
280			<!ENTITY % obsolete-phrase "">
281			<![ %HTML.pSeparator [
282			<!ENTITY % obsolete-p "\| P">
283			]]>
284			<!ENTITY % obsolete-p "">
285	connolly	1.3
286	connolly	1.8	<!ENTITY % inline "%phrase %obsolete-font">
287			<!ENTITY % pre-inline "%font %obsolete-phrase %obsolete-p">
288	connolly	1.3
289	connolly	1.12	<!ENTITY % text "#PCDATA \| IMG \| %inline \| BR %obsolete-p">
290	connolly	1.6
291			<!ENTITY % htext "A \| %text" -- Plus links, no structure -->
292	connolly	1.4
293	connolly	1.8	<![ %HTML.font-phrase [ <!ENTITY % font-content "(%htext)+"> ]]>
294			<!ENTITY % font-content "#PCDATA">
295			<!ELEMENT (%font;) - - (%font-content;)>
296
297			<!ELEMENT (%phrase;) - - (%htext)+>
298	connolly	1.5
299	connolly	1.8	<!ENTITY % pre "PRE \| XMP \| LISTING">
300	connolly	1.6
301	connolly	1.9	<![ %HTML.forms [ <!ENTITY % block-form "\| FORM \| ISINDEX"> ]]>
302	connolly	1.8	<!ENTITY % block-form "">
303	connolly	1.6
304	connolly	1.8	<![ %HTML.pSeparator [
305			<!ENTITY % obsolete-htext "\| %htext">
306			<!ENTITY % block-p "">
307			]]>
308			<!ENTITY % obsolete-htext "\| A">
309			<!ENTITY % block-p "\| P ">
310	connolly	1.4
311	connolly	1.8	<!ENTITY % block "HR \| %list \| DL
312			\| %pre \| BLOCKQUOTE \| ADDRESS
313			%block-form %block-p">
314
315
316	connolly	1.12	<![ %HTML.bodyBlockOnly [
317			<!ENTITY % current-htext "">
318			]]>
319			<!ENTITY % current-htext "\| %htext">
320
321			<!ENTITY % body-content "%heading \| %block %current-htext">
322	connolly	1.8	<!ELEMENT BODY O O (%body-content)*>
323
324
325	connolly	1.12	<!ELEMENT A - - (%heading\|%block\|%text)+ -(A)
326	connolly	1.8	-- @# Technically, this allows silliness like:
327			<H2><A>xyz<H1>h1</H1></A></H2>
328			The right way to do anchors outside of %htext is more like:
329			<as id=z1><H2>lkjlkj</h2><ae start=z1>
330			-->
331	connolly	1.4	<!ATTLIST A
332	connolly	1.6	%linkattributes;
333			>
334
335			<!ELEMENT IMG - O EMPTY -- Embedded image -->
336			<!ATTLIST IMG
337	connolly	1.8	SRC %URI; #IMPLIED -- URI of document to embed --
338			ALT CDATA #IMPLIED
339			ALIGN (top\|middle\|bottom) #IMPLIED
340			ISMAP (ISMAP) #IMPLIED
341	connolly	1.6	>
342
343
344	connolly	1.8	<![ %HTML.pSeparator [ <!ENTITY % p-content "EMPTY"> ]]>
345			<!ENTITY % p-content "(%htext)+">
346			<!ELEMENT P - O %p-content>
347	connolly	1.6	<!ELEMENT HR - O EMPTY -- horizontal rule -->
348	connolly	1.8	<!ELEMENT BR - O EMPTY -- @# BR -> &br; -->
349	connolly	1.6
350			<!ELEMENT ( %heading ) - - (%htext;)+>
351
352	connolly	1.8	<!ELEMENT DL - - (DT*, DD?)+>
353			<!ATTLIST DL
354	connolly	1.11	COMPACT (COMPACT) #IMPLIED>
355	connolly	1.8
356			<!ELEMENT DT - O (%htext)+>
357			<!ELEMENT DD - O (%htext\|%block)+>
358
359			<!ELEMENT (%list) - - (LI)+>
360	connolly	1.2
361	connolly	1.8	<!ELEMENT LI - O (%htext\|%block)+>
362	connolly	1.2
363	connolly	1.9	<!ELEMENT BLOCKQUOTE - - (%htext\|%block)+ -- @# Hmm... --
364	connolly	1.6	-- for quoting some other source -->
365	connolly	1.3
366	connolly	1.11	<!ELEMENT ADDRESS - - (%htext;\|%block)+>
367	connolly	1.2
368	connolly	1.8	<!ELEMENT PRE - - (#PCDATA\|%pre-inline\|A)+>
369	connolly	1.2	<!ATTLIST PRE
370	connolly	1.6	WIDTH NUMBER #implied
371	connolly	1.2	>
372
373	connolly	1.6	<!-- Mnemonic character entities. -->
374	connolly	1.8
375			<!ENTITY % ISOlat1 PUBLIC
376			"ISO 8879:1986//ENTITIES Added Latin 1//EN">
377			%ISOlat1;
378
379	connolly	1.11	<!ENTITY #DEFAULT SDATA "&unkown;" --display the markup-->
380	connolly	1.12	<!ENTITY amp CDATA "&" -- ampersand -->
381			<!ENTITY gt CDATA ">" -- greater than -->
382			<!ENTITY lt CDATA "<" -- less than -->
383			<!ENTITY quot CDATA """ -- double quote -->
384
385			<!-- Processing Entities -->
386
387	connolly	1.8	<!ENTITY nbsp "<? nonbreaking-space>">
388			<!-- @# should add entites for processing instructions
389			for line break, centering, etc. -->
390	connolly	1.6
391	connolly	1.3
392	connolly	1.8	<!-- Forms -->
393			<![ %HTML.forms [
394
395			<!ENTITY % HTTP-Method "(GET \| POST)">
396	connolly	1.9	<!ELEMENT FORM - - (%body-content)* -(FORM) +(INPUT\|SELECT\|TEXTAREA)>
397	connolly	1.8	<!ATTLIST FORM
398			ACTION %URI #REQUIRED
399			METHOD %HTTP-Method #IMPLIED -- @# MAILTO? --
400			ENCTYPE %Content-Type; #IMPLIED
401			>
402
403			<!ENTITY % InputType "(TEXT \| PASSWORD \| CHECKBOX \|
404			RADIO \| SUBMIT \| RESET \|
405			IMAGE \| HIDDEN )">
406			<!ELEMENT INPUT - O EMPTY>
407			<!ATTLIST INPUT
408			TYPE %InputType #IMPLIED -- @# defaults to TEXT?? --
409			NAME CDATA #IMPLIED -- required for all but submit and reset --
410			VALUE CDATA #IMPLIED
411			SRC %URI #IMPLIED -- for image inputs --
412	connolly	1.11	CHECKED (CHECKED) #IMPLIED
413	connolly	1.8	SIZE CDATA #IMPLIED -- @# should be NUMBERS: delimit with space, not comma --
414			MAXLENGTH NUMBER #IMPLIED
415			ALIGN (top\|middle\|bottom\|left\|center\|right) #IMPLIED --@#supported?--
416			>
417
418			<!ELEMENT SELECT - - (OPTION+)>
419			<!ATTLIST SELECT
420			NAME CDATA #REQUIRED
421			SIZE NUMBER #IMPLIED
422	connolly	1.11	MULTIPLE (MULTIPLE) #IMPLIED
423	connolly	1.8	>
424
425			<!ELEMENT OPTION - O (#PCDATA)>
426			<!ATTLIST OPTION
427	connolly	1.11	SELECTED (SELECTED) #IMPLIED
428	connolly	1.8	VALUE CDATA #IMPLIED
429			>
430
431			<!ELEMENT TEXTAREA - - (#PCDATA)>
432			<!ATTLIST TEXTAREA
433			NAME CDATA #REQUIRED
434			ROWS NUMBER #REQUIRED -- @#implied? --
435			COLS NUMBER #REQUIRED
436			>
437			]]>
438	connolly	1.2
439	connolly	1.12	<!-- Obsolete Elements -->
440
441			<![ %HTML.litCDATA [ <!ENTITY % lit-content "CDATA"> ]]>
442			<!ENTITY % lit-content "RCDATA">
443			<!ELEMENT (%literal) - - %lit-content>
444
445			<![ %HTML.PLAINTEXT [
446			<!ELEMENT PLAINTEXT - O EMPTY>
447			]]>