Mercurial > hg > xemacs-beta
diff etc/sgml/html-plus.dtd @ 8:4b173ad71786 r19-15b5
Import from CVS: tag r19-15b5
| author | cvs |
|---|---|
| date | Mon, 13 Aug 2007 08:47:35 +0200 |
| parents | 376386a54a3c |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/etc/sgml/html-plus.dtd Mon Aug 13 08:47:35 2007 +0200 @@ -0,0 +1,925 @@ +<!SGML "ISO 8879:1986" +-- + Document Type Definition for the HyperText Markup Language Plus + for use with the World Wide Web application (HTML+ DTD). + This DTD is designed for use with SGML authoring tools and + it is expected that most browsers will tolerate omissions, + in particular, missing <DIVn> elements and <P> start tags + following headers, which can easily be inferred from the context. + + The HTML+ DTD which is structured as an HTML core plus a + number of additional modules which can be included by an + entity definition in a document's <!DOCTYPE> element. + You can include specific features in your document + using the DOCTYPE declaration at the start, e.g. + + <!DOCTYPE htmlplus [ + <!ENTITY % HTML.tables "INCLUDE"> + <!ENTITY % HTML.forms "INCLUDE"> + ]> + + This spec also allows for authors to extend the DTD and + to define how any new elements are rendered in terms of + existing ones. This should be used with caution. + + I would like to acknowledge the influence of the TEI DTDs + which proved very helpful in restructuring the DTD. + + Dave Raggett 21st March 1994 + + Changes: + + Added support for graphical menus to SELECT/OPTION. + + Liberalised content model for headers to %text; + Added SPACES attribute to P element to preserve spaces. + + Dropped the LIT element and changed the TAB element + over to the LaTeX model. Added NOWRAP to P element. + Replaced TH/TD's align=numeric with ALIGNON="." etc. + + Made anchor NAME attribute conditional on HTML.obsolete + Added HTML.obsolete for obsoleted HTML elements + + Added SIG attribute to A and LINK for specifying + a digital signature to attest that a linked document + is unchanged. + + SRC attribute added to NOTE to allow authors to override + the default icon chosen on the basis of the ROLE attribute. + + Switched REL/REV back to CDATA to avoid trouble with duplicate + name or name token error. Using an explicit list of relationship + types would force us to drop REV. + + Added top/bottom alignment attribute to CAPTION + + REL and REV domains now defined by parameter entities + + SRC attribute added to LINK to allow images to be used + in document specific toolbar + + Baseline attribute added to FIG and IMG to give precise + control of vertical position relative to baseline. + + Revised comments for <A> and <LINK> to remove references to + obsoleted timing attributes and to add a list of "standard" + relationship types. + + CHANGED element now uses more meaningful attribute names. + + STATE dropped in favor of INPUT with TYPE="hidden". Forms now + support a link to a script for client-side execution of constraints. + + The element definition for DIV1..DIV6 and P no longer permit the + start tag to be omitted. This was regrettably forced by a + restriction in the SGML standard. Browsers *must* be capable of + inferring them when missing,in order to cope with legacy documents. + + Fixed some errors in earlier version to do with start tags and + definitions of parameter entities. The content model for FIG has + been changed to use a P element for text to avoid an SGML parsing + problem with a line break before the caption. +-- +CHARSET + BASESET "ISO 646:1983//CHARSET + International Reference Version (IRV)//ESC 2/5 4/0" + DESCSET 0 9 UNUSED + 9 2 9 + 11 2 UNUSED + 13 1 13 + 14 18 UNUSED + 32 95 32 + 127 1 UNUSED + BASESET "ISO Registration Number 100//CHARSET + ECMA-94 Right Part of Latin Alphabet Nr. 1//ESC 2/13 4/1" + DESCSET 128 32 UNUSED + 160 95 32 + 255 1 UNUSED + +CAPACITY SGMLREF + TOTALCAP 150000 + GRPCAP 150000 + +SCOPE DOCUMENT +SYNTAX + SHUNCHAR CONTROLS 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 + 19 20 21 22 23 24 25 26 27 28 29 30 31 127 255 + BASESET "ISO 646:1983//CHARSET + International Reference Version (IRV)//ESC 2/5 4/0" + DESCSET 0 128 0 + FUNCTION RE 13 + RS 10 + SPACE 32 + TAB SEPCHAR 9 + NAMING LCNMSTRT "" + UCNMSTRT "" + LCNMCHAR ".-" + UCNMCHAR ".-" + NAMECASE GENERAL YES + ENTITY NO + DELIM GENERAL SGMLREF + SHORTREF SGMLREF + NAMES SGMLREF + QUANTITY SGMLREF + NAMELEN 32 + TAGLVL 100 + LITLEN 1024 + GRPGTCNT 150 + GRPCNT 64 + +FEATURES + MINIMIZE + DATATAG NO + OMITTAG YES + RANK NO + SHORTTAG NO + LINK + SIMPLE NO + IMPLICIT NO + EXPLICIT NO + OTHER + CONCUR NO + SUBDOC NO + FORMAL YES + APPINFO NONE +> + +<!DOCTYPE HTMLPLUS [ + +<!-- DTD for HTML+ +Markup minimisation should be avoided, otherwise the default <!SGML> +declaration is fine. Browsers should be forgiving of markup errors, +while authoring tools *should* enforce compliance with the DTD. + +Common Attributes: + +id This attribute allows authors to name elements such as headers + and paragraphs as potential destinations for links. Note that + links don't specify points, but rather extended objects. + +charset This allows authors to switch to a different char set for + quotations or list etc. This is particularly useful for oriental + languages which need two byte character codes, e.g. see RFC 1468 + "Japanese Character Encoding for Internet Messages" + +ENTITY DECLARATIONS + + <!ENTITY % foo "X | Y | Z"> is a macro definition for parameters and in + subsequent statements, the string "%foo;" is expanded to "X | Y | Z" + + Various classes of SGML text types: + + CDATA text which doesn't include markup or entity references + RCDATA text with entity references but no markup + PCDATA text occurring in a context in which markup and entity references + may occur. +--> + +<!-- Core HTML+ DTD omits following features --> +<!ENTITY % HTML.math "IGNORE"> +<!ENTITY % HTML.tables "IGNORE"> +<!ENTITY % HTML.figures "IGNORE"> +<!ENTITY % HTML.emph "IGNORE"> +<!ENTITY % HTML.forms "IGNORE"> +<!ENTITY % HTML.obsolete "IGNORE"> + +<!ENTITY % cextra "" -- for character-like elements --> +<!ENTITY % pextra "" -- for paragraph-like elements --> + +<!-- %cextra; and %pextra are designed to allow document specific + extensions to the HTML+ DTD, e.g. + + <!DOCTYPE htmlplus [ + <!ENTITY % cextra "|PROPNAME"> + <!ELEMENT PROPNAME - - CDATA> + ]> + + Use the RENDER element to specify how the browser should + display new elements in terms of existing ones, e.g. + + <RENDER tag="PROPNAME" style="I"> +--> + +<!ENTITY % URL "CDATA" -- a URL or URN designating a hypertext node --> + +<!-- Browsers should render the following types of emphasis + distinctly when the obvious rendering is impractical + + I = italic, B = bold, U = underline, S = strikethru, + TT = teletype font, SUP = superscript, SUB = subscript + REV = reverse video for highlighting hit areas in the result of a query + Q = inline quote (render according to local conventions) +--> + +<!ENTITY % emph1 "I|B|U|TT|CITE|EM|STRONG|KBD|VAR|DFN|CODE|SAMP"> +<!ENTITY % emph2 "S|Q|PERSON|ACRONYM|ABBREV|CMD|ARG|REMOVED|ADDED|REV"> +<!ENTITY % emph3 "SUP|SUB|CHANGED|TAB|HIDE"> + +<![ %HTML.emph [ <!ENTITY % emph "%emph1;|%emph2;|%emph3;"> ]]> +<!ENTITY % emph "%emph1;"> + +<![ %HTML.emph [ <!ENTITY % misc1 "|RENDER|FOOTNOTE|MARGIN"> ]]> +<!ENTITY % misc1 ""> + +<![ %HTML.forms [ <!ENTITY % misc2 "|INPUT|TEXTAREA|SELECT"> ]]> +<!ENTITY % misc2 ""> + +<!ENTITY % misc "BR %misc1 %misc2; %cextra;"> + +<![ %HTML.figures [ <!ENTITY % text "#PCDATA|A|IMG|FIG|%emph;|%misc;"> ]]> +<!ENTITY % text "#PCDATA|A|IMG|%emph;|%misc;"> + +<![ %HTML.emph [ <!ENTITY % paras "P|PRE|%pextra;"> ]]> +<!ENTITY % paras "P|PRE %pextra;"> + +<!ENTITY % lists "UL|OL|DL"> + +<![ %HTML.emph [ <!ENTITY % block1 "NOTE|QUOTE|ABSTRACT|ADDRESS|HR"> ]]> +<!ENTITY % block1 "ADDRESS|HR"> + +<![ %HTML.tables [ <!ENTITY % block2 "|TABLE"> ]]> +<!ENTITY % block2 ""> + +<![ %HTML.forms [ <!ENTITY % block3 "|FORM"> ]]> +<!ENTITY % block3 ""> + +<![ %HTML.math [ <!ENTITY % block4 "|MATH"> ]]> +<!ENTITY % block4 ""> + +<![ %HTML.obsolete [ <!ENTITY % block5 "|MENU|DIR|BLOCKQUOTE"> ]]> +<!ENTITY % block5 ""> + +<!ENTITY % block "%block1; %block2; %block3; %block4; %block5;"> + +<![ %HTML.emph [<!ENTITY % setup1 "& RENDER*"> ]]> +<!ENTITY % setup1 ""> + +<!ENTITY % setup "(TITLE? & ISINDEX? & BASE? & META* & LINK* %setup1;)"> + +<!ENTITY % main "%block;|%lists;|%paras;"> + +<!-- these entities are used to simplify element definitions --> + +<!ENTITY % heading "H1|H2|H3|H4|H5|H6"> +<!ENTITY % table "P|%heading;|%lists;"> +<!ENTITY % math "BOX|ARRAY|ROOT|%text;"> + +<![ %HTML.obsolete [<!ENTITY % anchorname "name NMTOKEN #IMPLIED"> ]]> +<!ENTITY % anchorname ""> + +<!-- Browsers should as a minimum support the following types + of INPUT fields, in addition to TEXTAREA and SELECT: + + text, checkbox, radio, submit, and reset + + password, int, float, date, url can be mapped to text fields + while image, scribble and audio fields can be ignored +--> + +<![ %HTML.forms [ + <!ENTITY % fields "text|password|checkbox|radio|submit|reset|int| + float|date|url|hidden|range|scribble|audio"> +]]> + + +<!-- Core DTD includes basic Latin-1 entities --> +<!ENTITY % ISOlat1 PUBLIC "ISO 8879-1986//ENTITIES Added Latin 1//EN"> +%ISOlat1; + +<!-- additional entities normally found in Latin-1 char sets--> +<!ENTITY % ISOnum PUBLIC "ISO 8879-1986//ENTITIES Numeric and Special Graphic//EN"> +%ISOnum; + +<!-- diacritical marks normally found in Latin-1 char sets--> +<!ENTITY % ISOdia PUBLIC "ISO 8879-1986//ENTITIES Diacritical Marks//EN"> +%ISOdia; + +<!-- misc. from ISO Publishing entities --> +<!ENTITY ndash SDATA "[ndash ]"--=en dash--> +<!ENTITY mdash SDATA "[ndash ]"--=em dash--> +<!ENTITY ensp SDATA "[ensp ]"--=en space (1/2-em)--> +<!ENTITY emsp SDATA "[emsp ]"--=em space--> +<!ENTITY hellip SDATA "[hellip]"--=ellipsis (horizontal)--> +<!ENTITY vellip SDATA "[vellip]"--=ellipsis (vertical)--> + +<!-- maths symbols when needed --> +<![ %HTML.math [ + <!ENTITY % ISOtech PUBLIC "ISO 8879-1986//ENTITIES General Technical//EN"> + %ISOtech; + + <!ENTITY % ISOgrk3 PUBLIC "ISO 8879-1986//ENTITIES Greek Symbols//EN"> + %ISOgrk3; + + <!ENTITY % ISOamso PUBLIC "ISO 8879-1986//ENTITIES Added Math Symbols: Ordinary//EN"> + %ISOamso; + + <!ENTITY % ISOamsr PUBLIC "ISO 8879-1986//ENTITIES Added Math Symbols: Relations//EN"> + %ISOamsr; + + <!ENTITY % ISOamsc PUBLIC "ISO 8879-1986//ENTITIES Added Math Symbols: Delimiters//EN"> + %ISOamsc; + + <!-- misc. from ISO Binary and Large operators --> + + <!ENTITY thinsp SDATA "[thinsp]"--=thin space (1/6 em)--> + <!ENTITY coprod SDATA "[coprod]"--/coprod L: coproduct operator--> + <!ENTITY prod SDATA "[prod ]"--/prod L: product operator--> + <!ENTITY sum SDATA "[sum ]"--/sum L: summation operator--> +]]> + +<!-- Basic types of elements: + <!ELEMENT tagname - - CONTENT> elements needing end tags + <!ELEMENT tagname - O CONTENT> elements with optional end tags + <!ELEMENT tagname - O EMPTY> elements without content or end tags + +The content definition is: + - an entity definition as defined above + - a tagname + - (brackets enclosing the above) +These may be combined with the operators: + A* A occurs zero or more times + A+ A occurs one or more times + A|B implies either A or B + A? A occurs zero or one times + A,B implies first A then B + A&B either or both A and B (in either order A B or B A) +--> + +<!ELEMENT HTMLPLUS O O (HEAD, BODY)> +<!ATTLIST HTMLPLUS + version CDATA #IMPLIED -- the HTML+ version number -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!ELEMENT HEAD - O (%setup;) -- delimits document wide properties --> +<!ELEMENT BODY - O ((%main;)*, DIV6*, DIV5*, DIV4*, DIV3*, DIV2*, DIV1*)> + +<!-- + Browsers *must* tolerate missing DIVn tags, e.g. the presence of an + <H1> tag implies a DIV1 element enclosing it and the following text. + The SGML standard unfortunately doesn't permit such inferences due + to a decision made to simplify writing general SGML parsers. +--> + +<!ELEMENT DIV1 - - (H1, (%main;)*, DIV6*, DIV5*, DIV4*, DIV3*, DIV2*)> +<!ELEMENT DIV2 - - (H2, (%main;)*, DIV6*, DIV5*, DIV4*, DIV3*)> +<!ELEMENT DIV3 - - (H3, (%main;)*, DIV6*, DIV5*, DIV4*)> +<!ELEMENT DIV4 - - (H4, (%main;)*, DIV6*, DIV5*)> +<!ELEMENT DIV5 - - (H5, (%main;)*, DIV6*)> +<!ELEMENT DIV6 - - (H6, (%main;)*)> + +<!ATTLIST (DIV6|DIV5|DIV4|DIV3|DIV2|DIV1) + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- Document headers --> +<!ELEMENT (%heading;) - - (%text;)+> +<!ATTLIST (%heading;) + id ID #IMPLIED -- defines link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- character emphasis --> +<!ELEMENT (%emph1;) - - (%text;)+> +<!ATTLIST (%emph1;) + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- + Paragraphs which act as containers for the following text + + Browsers *must* be capable of inferring missing <P> + start tags from the content model. Basically, if the parser + comes across unexpected %text; then there's a missing <P>. +--> +<!ELEMENT P - O (%text;)+> +<!ATTLIST P + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese -- + nowrap (nowrap) #IMPLIED -- disable word wrap -- + spaces (spaces) #IMPLIED -- preserve spaces -- + align (left|indent|center|right|justify) left> + +<!ELEMENT HR - O EMPTY -- Horizontal Rule --> +<!ELEMENT BR - O EMPTY -- forced line break --> + +<!ELEMENT PRE - - (%text;)+ -- preformatted fixed pitch text --> +<!ATTLIST PRE + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!ELEMENT ADDRESS - - (P)+ -- info on author --> +<!ATTLIST ADDRESS + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- Lists which can be nested --> +<!ELEMENT OL - - (LI)+ -- ordered list --> +<!ATTLIST OL + id ID #IMPLIED + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese -- + compact (compact) #IMPLIED -- reduced interitem spacing --> + +<!ELEMENT UL - - (LI)+ -- unordered list --> +<!ATTLIST UL + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese -- + compact (compact) #IMPLIED -- reduced interitem spacing -- + plain (plain) #IMPLIED -- suppress bullets -- + wrap (vert|horiz|none) none -- multicolumn list wrap style --> + +<!-- List items for UL and OL lists + The icon or label overides the default rendering --> +<!ELEMENT LI - O (DL|UL|OL|P|HR)+ -- should we add PRE? --> +<!ATTLIST LI + id ID #IMPLIED + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese -- + icon %URL; #IMPLIED -- icon for use in place of bullet -- + label CDATA #IMPLIED -- when you can't show the icon --> + +<!-- Definition Lists (terms + definitions) --> +<!ELEMENT DL - - (DT*,DD)+> +<!ATTLIST DL + id ID #IMPLIED + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese -- + compact (compact) #IMPLIED -- reduced interitem spacing --> + +<!ELEMENT DT - O (%text;)+ -- term text -- > +<!ELEMENT DD - O (P|UL|OL|DL|HR)+ -- definition text (should we add PRE?)-- > +<!ATTLIST (DT|DD) + id ID #IMPLIED + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- Hypertext Links from points within document nodes + + The HREF attribute specifies the link destination as a URL or URN. + In figures, the SHAPE attribute defines the extent of the link as + a polygonal region, and is used with the FIG element. + + The PRINT attribute determines how the browser should deal with + links when printing this document. This makes it possible for + users to print a document and related subdocuments with a single + menu action. If PRINT="Section", then the link is followed and + printed as a follow-on section after the current document. If + PRINT="Footnote" and the linked document is sufficiently small + then it is included as a footnote. If PRINT="Reference" then the + document's URL (and title) is included in a footnote or in a list + of references at the end of the document. + + The TITLE attribute may be used for links in which the destination + node doesn't define a title itself, e.g. non-html documents. + + The REL attribute is used to specify how the browser interprets + the link when this document is being used as a hypertext path + REL="Path" causes the linked document to be treated as a path + and inserted into the current path, while REL="Node" treats + the linked document as a node on the current path. REL="Embed" + is a hint to embed the referenced node into the current document. + + The SIG attribute allows authors to specify a digital signature + of linked documents to check that they haven't been changed. + It starts with a prefix denoting the algorithm used, in particular + SIG="md5:2l3k4j2lkj423l" denotes the MD5 signature: 2l3k4j2lkj423l + which is encoded using the standard MIME base64 representation +--> + +<!ELEMENT A - - (#PCDATA | IMG | %emph;)*> +<!ATTLIST A + id ID #IMPLIED -- as target of link -- + %anchorname; -- see HTML.obsolete -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese -- + shape CDATA #IMPLIED -- list of points for shaped buttons -- + href %URL; #IMPLIED -- destination node -- + rel CDATA #IMPLIED -- forward relationship type -- + rev CDATA #IMPLIED -- reverse relationship type -- + print CDATA #IMPLIED -- reference/footnote/section -- + title CDATA #IMPLIED -- when otherwise unavailable -- + sig CDATA #IMPLIED -- MD5 digital signature --> + +<!-- Other kinds of relationships between documents + + There are a set of standard RELationship types which alter the + browser's navigation menu: + + UseIndex searchable index + UseGlossary shared glossary + Contents shared contents page + Previous previous document in a hypertext path + Next next document in a hypertext path + Bookmark named with the title attribute + Made Defines who is the "maker" of this document + Help provides help on this document + Annotation an additional note on current document + Reply a note with equal footing to current document + Subdocument defines parent->child relationship + Parent defines child->parent relationship + StyleSheet an associated style sheet + + Bookmarks allow authors to define a set of useful links + which are to be accessed via a menu, rather than as conventional + in-line hypertext links. Previous and Next links are inserted + by the browser when interpreting a separate document as a path. + See above description of REL="Node" and REL="Path" for <A>. + + The FROM attribute makes it possible to specify annotation + links separately from the document text flow. The FROM + attribute specifies an ID for the source of a link, while + the HREF attribute specifies its destination. HTTP servers + can use the WWW-Link: header to "insert" such annotations + into documents. +--> + +<!ELEMENT LINK - O EMPTY> +<!ATTLIST LINK + id ID #IMPLIED -- to allow meta info on links -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese -- + from IDREF #IMPLIED -- starting point -- + href %URL; #REQUIRED -- destination node -- + rel CDATA #IMPLIED -- forward relationship type -- + rev CDATA #IMPLIED -- reverse relationship type -- + src %URL; #IMPLIED -- an image for displaying link -- + print CDATA #IMPLIED -- reference/footnote/section -- + title CDATA #IMPLIED -- when otherwise unavailable -- + seal CDATA #IMPLIED -- MD5 digital signature --> + +<!-- Document title --> +<!ELEMENT TITLE - - (#PCDATA | %emph;)+> +<!ATTLIST TITLE + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- Original document URL for resolving relative URLs --> +<!ELEMENT BASE - O EMPTY> +<!ATTLIST BASE HREF %URL; #IMPLIED> + +<!-- Signifies the document's URL accepts queries, + and may be implied by HTTP header info --> +<!ELEMENT ISINDEX - O EMPTY> +<!ATTLIST ISINDEX href %URL; #IMPLIED -- defaults to document's URL --> + +<!-- + Servers should read the document head to generate HTTP headers + corresponding to META elements, e.g. if the document contains: + + <meta name="Expires" value="Tue, 04 Dec 1993 21:29:02 GMT"> + + The server should include the HTTP date format header field: + + Expires: Tue, 04 Dec 1993 21:29:02 GMT + + Other likely names are "Keywords", "Created", "Owner" (a name) + and "Reply-To" (an email address) +--> + +<!ELEMENT META - O EMPTY> +<!ATTLIST META + id ID #IMPLIED -- to allow meta info -- + name CDATA #IMPLIED -- HTTP header e.g. "Expires" -- + value CDATA #IMPLIED -- associated value --> + +<![ %HTML.obsolete [ + +<!ELEMENT (MENU|DIR) - - (LI)+ -- plain single/multicolumn lists--> +<!ATTLIST (MENU|DIR) + compact (compact) #IMPLIED -- reduced interitem spacing --> + +<!ELEMENT BLOCKQUOTE - - (P)+ -- extended quotes --> + +]]> + +<![ %HTML.emph [ + +<!-- additional character emphasis --> +<!ELEMENT (%emph2;) - - (%text;)*> +<!ATTLIST (%emph2;) + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!ELEMENT (SUP|SUB) - - (%text;)* -- superscripts and subscripts --> +<!ATTLIST (SUP|SUB) + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!ELEMENT (FOOTNOTE|MARGIN) - - (%text;)* -(FOOTNOTE|MARGIN)> +<!ATTLIST (FOOTNOTE|MARGIN) + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- RENDER only appears in the document head --> +<!ELEMENT RENDER -O EMPTY -- how to render unknown elements --> +<!ATTLIST RENDER + id ID #IMPLIED -- to allow meta info -- + tag CDATA #IMPLIED -- tag name -- + equiv CDATA #IMPLIED -- HTML+ equivalent tag name -- + style NAMES #IMPLIED -- space separated list of styles --> + +<!-- Based on LaTeX's tabbing environment --> +<!ELEMENT TAB - O EMPTY> +<!ATTLIST TAB + id ID #IMPLIED -- used to set a tab stop -- + to IDREF #IMPLIED -- move to previously defined tab stop -- + before NUMBER 0 -- scaled em spaces before tab stop -- + after NUMBER 0 -- scaled em spaces after tab stop -- + reset (reset) #IMPLIED -- clear all previous tab stops --> + +<!-- content is hidden, equivalent of LaTeX's \kill --> +<!ELEMENT HIDE - - (%text;) (-HIDE)> + +<!ELEMENT QUOTE - - (P*) -- block quote --> +<!ATTLIST QUOTE + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!ELEMENT ABSTRACT - - (P*) -- document summary --> +<!ATTLIST ABSTRACT + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- often rendered with an icon in left margin, + the role is shown before the first paragraph --> +<!ELEMENT NOTE - - (P*) -- admonishment --> +<!ATTLIST NOTE + id ID #IMPLIED -- link destination -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese -- + src %URL; #IMPLIED -- url for the icon -- + role (Simple|Tip|Note|Warning|Error) Simple > + +<!-- change bars can bridge markup boundaries --> +<!ELEMENT CHANGED - O EMPTY> +<!ATTLIST CHANGED -- one of id or idref is always required -- + begin ID #IMPLIED -- signals beginning of changes -- + end IDREF #IMPLIED -- signals end of changes --> +]]> + + +<![ %HTML.figures [ <!ENTITY % HTML.captions "INCLUDE"> ]]> +<![ %HTML.tables [ <!ENTITY % HTML.captions "INCLUDE"> ]]> +<!ENTITY % HTML.captions "IGNORE"> + +<![ %HTML.captions [ + +<!ELEMENT CAPTION - - (%text;)+ -- table or figure caption --> +<!ATTLIST CAPTION + id ID #IMPLIED + align (top|bottom) #IMPLIED + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> +]]> + +<![ %HTML.tables [ + +<!-- a pre-pass is needed to count columns and determine + min/max widths before sizing to match window size --> + +<!ELEMENT TABLE - - (CAPTION?, TR*) -- mixed headers and data --> +<!ATTLIST TABLE + id ID #IMPLIED + border (border) #IMPLIED -- draw borders -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- browsers should tolerate an omission of the first + <TR> tag as it is implied by the context --> +<!ELEMENT TR - O (TH|TD)* -- acts like row separator --> +<!ATTLIST TR id ID #IMPLIED> + +<!ELEMENT TH - O (%table;)* -- a header cell --> +<!ATTLIST TH + id ID #IMPLIED + colspan NUMBER 1 -- columns spanned -- + rowspan NUMBER 1 -- rows spanned -- + align (left|center|right) center + alignon CDATA #IMPLIED -- align on decimal point etc -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!ELEMENT TD - O (%table;)* -- a data cell --> +<!ATTLIST TD + id ID #IMPLIED + colspan NUMBER 1 -- columns spanned -- + rowspan NUMBER 1 -- rows spanned -- + align (left|center|right) center + alignon CDATA #IMPLIED -- align on decimal point etc -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> +]]> + +<![ %HTML.forms [ + +<!-- + The form contents are sent to the server upon pressing a submit + button. Forms can be associated with scripts, e.g. to make one + selection field effect which options are enabled for other fields. + + Clicking on a selection or typing into a text field result in events + which are processed by the script. Event handlers are associated + with each field or with the form itself. The script language is + deliberately restricted to avoid any security issues. + + Fields can be disabled (greyed out) or marked as being in error. + The MESSAGE element may be used by the server to set error messages. + Servers can store state information in forms with hidden input fields. + These are not displayed and can be used to hold transaction handles etc. +--> + +<!ELEMENT FORM - - ((%main;)*, MESSAGE?) -(FORM) -- forms can't be nested --> +<!ATTLIST FORM + id ID #IMPLIED + action %URL; #IMPLIED -- defaults for URL for current doc -- + method CDATA #IMPLIED -- GET, PUT, POST, DELETE etc. -- + enctype CDATA #IMPLIED -- encoding type for form transfers -- + script %URL; #IMPLIED -- locally executed event handlers -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- Types of INPUT field: + text: one line text fields, size gives visible width of field in chars + where value may grow beyond this up to MAX (MAXLENGTH) chars. + password: like text fields but with no echo of typed characters + checkbox: for simple yes/no choices + radio: for one from many choices, each radio button in a group + has the same NAME but a different VALUE. + submit: Sends form to server. If the SRC attribute specifies an + icon the point clicked is sent to the server. The default + NAME for this field is "Submit". Use different names for + multiple submit buttons in a form. + reset: Resets fields to their initial values. + int: for input of integers, SIZE attribute gives width of field + float: for input of floating point numbers + date: for input of dates + url: for input of universal resource locators + hidden: used by server for state info, opaque to client + range: integer range from MIN to MAX, rendered as a slider etc. + scribble: pen input, which may include time and pressure info + audio: sound input with up to MAX seconds +--> +<!ELEMENT INPUT - O EMPTY> +<!ATTLIST INPUT + id ID #IMPLIED -- to allow meta info -- + name CDATA #IMPLIED -- attribute name (may not be unique) -- + type (%fields) text -- a wide variety of field types -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese -- + size CDATA #IMPLIED -- visible size of text fields -- + min NUMBER #IMPLIED -- for range controls -- + max NUMBER #IMPLIED -- for range controls or text fields -- + maxlength NUMBER #IMPLIED -- max length of text fields (equiv to max)-- + value CDATA #IMPLIED -- attribute value (altered by user) -- + checked (checked) #IMPLIED -- for check boxes and radio buttons -- + disabled (disabled) #IMPLIED -- if grayed out -- + error (error) #IMPLIED -- if in error -- + src %URL; #IMPLIED -- for SUBMIT, SCRIBBLE & AUDIO fields -- + alt CDATA #IMPLIED -- alternative text for VT100's etc -- + align (top|middle|bottom) top -- for IMAGE fields only --> + +<!-- multiline text input fields, we probably will want + to generalise this to accept arbitrary clipboard data + e.g. hypertext and images, in addition to plain text --> +<!ELEMENT TEXTAREA - - RCDATA -- multi-line text fields --> +<!ATTLIST TEXTAREA + id ID #IMPLIED -- to allow meta info -- + name CDATA #IMPLIED -- attribute name (may not be unique) -- + cols NUMBER #IMPLIED -- visible width in characters -- + rows NUMBER #IMPLIED -- visible height in characters -- + wrap (wrap) #IMPLIED -- wrap input in text area -- + disabled (disabled) #IMPLIED -- if grayed out -- + error (error) #IMPLIED -- if in error -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- + The EDIT attribute when present allows you to type and + edit the selected option. + + The SRC attribute allows for graphical menus, e.g. users + wanting to buy a house could click on each of the areas on + a map that they were interested in. + --> +<!ELEMENT SELECT - - (OPTION+) -- combo style selection lists --> +<!ATTLIST SELECT + id ID #IMPLIED -- to allow meta info -- + name CDATA #IMPLIED -- attribute name (may not be unique) -- + edit NUMBER #IMPLIED -- width of editable selection -- + multiple (multiple) #IMPLIED -- permits multiple selections -- + error (error) #IMPLIED -- if in error -- + src %URL; #IMPLIED -- for graphical menus -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- The SHAPE attribute defines a region in the image that + is specified by the SRC attribute for the SELECT element --> +<!ELEMENT OPTION - O RCDATA> +<!ATTLIST OPTION + id ID #IMPLIED -- to allow meta info -- + value CDATA #IMPLIED -- attribute value -- + selected (selected) #IMPLIED -- if initially selected -- + disabled (disabled) #IMPLIED -- if grayed out -- + shape CDATA #IMPLIED -- list of points for shaped region -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> + +<!-- + Scripts executed by the client need a way of displaying + warning/error messages. We define an element so that the + server too can initialise this one-per-form message area. + Clients should preferably avoid displaying the message + in-line, as the window size may prevent the user from + seeing the message. + --> +<!ELEMENT MESSAGE - O RCDATA -- place for error/warning/info --> +<!ATTLIST MESSAGE + id ID #IMPLIED -- to allow meta info -- + status (info|warning|error) info + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> +]]> + +<![ %HTML.figures [ + +<!-- figures which subsume the role of the earlier IMG element. + + Behaves identically to IMG for align = top, middle or bottom. + Otherwise figure is inserted after next line break (soft or hard). + For align=left, the image is left aligned and text is flowed + on the right of the image, and similarly for align=right, with + no text flow for align=center (the default). The caption is + placed under the image. + + Finer control of the vertical positioning relative to the text + line is possible with the baseline attribute. When present, the + figure acts like the IMG element but is shifted so that the baseline + occurs at the specified number of pixels above the bottom of the image. + If this is given as a floating point number, it is interpreted as a + fraction of the image height and must lie in the range (0.0 to 1.0) + + The <A> element is used for shaped buttons handled by browser, + while the ISMAP mechanism sends pointer clicks/drags to server. + The text contained by this element is used for text-only displays + and authors should remember to provide effective descriptions, + including label text for shaped buttons. +--> +<!ELEMENT FIG - - (CAPTION?, P*)> +<!ATTLIST FIG + id ID #IMPLIED + align (top|middle|bottom|left|center|right) center -- position -- + baseline NUMBER #IMPLIED -- height of baseline above image bottom -- + ismap (ismap) #IMPLIED -- server can handle mouse clicks/drags -- + src %URL; #IMPLIED -- link to image data -- + charset CDATA #IMPLIED -- eg "ISO-2022-JP" for japanese --> +]]> + +<!-- img is left in for at least the short term --> +<!ELEMENT IMG - O EMPTY> +<!ATTLIST IMG + src %URL; #REQUIRED -- where to get image data -- + align (top|middle|bottom) top -- top, middle or bottom -- + baseline NUMBER #IMPLIED -- height of baseline above image bottom -- + alt CDATA #IMPLIED -- description for text-only displays -- + ismap (ismap) #IMPLIED -- send mouse clicks/drags to server --> + +<![ %HTML.math [ + +<!-- Proposal for representing formulae + + Delimiters should stretch to match the size of the delimited + object. <SUB> and <SUP> are used for subscripts and superscripts + + i j + X <SUP>i</SUP>Y<SUP>j</SUP> is X Y + + i.e. the space following the X disambiguates the binding. +--> + +<!ELEMENT MATH - - (%math;)*> +<!ATTLIST MATH id ID #IMPLIED> + +<!-- Invisible brackets which may also be + used for numerators and denominators: + + 1 + X + <BOX>1 + X<OVER>Y</BOX> is _______ + Y + + _____ + <BOX><OVER>X + Y</BOX> is X + Y +--> +<!ELEMENT BOX - - ((%math;)*, (OVER, (%math;)*)?)> + +<!-- Horizontal line between numerator and denominator + The symbol attribute allows authors to supply an + entity name for an arrow symbol etc. + --> +<!ELEMENT OVER - O EMPTY> +<!ATTLIST OVER symbol ENTITY #IMPLIED> + +<!-- Roots - default to square root --> +<!ELEMENT ROOT - - (%math;)*> +<!ATTLIST ROOT root CDATA #IMPLIED> + +<!-- LaTeX like arrays. The align attribute specifies + a single letter for each column, which also determines + how the column should be aligned, e.g. align=ccc" + + "l" left + "c" center + "r" right +--> +<!ELEMENT ARRAY - - (ITEM)+> +<!ATTLIST ARRAY align CDATA #REQUIRED> + +<!ELEMENT ITEM - O (%math;)*> + +]]> + +<!-- The END --> +]> +