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<!-- html-2.1e.dtd
Document Type Definition for the HyperText Markup Language,
version 2.1E (HTML DTD)
Last revised: 95/09/25
Authors: Daniel W. Connolly <connolly@w3.org>
Francois Yergeau <yergeau@alis.com>
-->
<!ENTITY % HTML.Version
"-//IETF//DTD HTML 2.1E//EN"
-- Typical usage:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.1E//EN">
<html>
...
</html>
--
>
<!--============ Feature Test Entities ========================-->
<!ENTITY % HTML.Recommended "IGNORE"
-- Certain features of the language are necessary for
compatibility with widespread usage, but they may
compromise the structural integrity of a document.
This feature test entity enables a more prescriptive
document type definition that eliminates
those features.
-->
<![ %HTML.Recommended [
<!ENTITY % HTML.Deprecated "IGNORE">
]]>
<!ENTITY % HTML.Deprecated "INCLUDE"
-- Certain features of the language are necessary for
compatibility with earlier versions of the specification,
but they tend to be used and implemented inconsistently,
and their use is deprecated. This feature test entity
enables a document type definition that eliminates
these features.
-->
<!ENTITY % HTML.Highlighting "INCLUDE"
-- Use this feature test entity to validate that a
document uses no highlighting tags, which may be
ignored on minimal implementations.
-->
<!ENTITY % HTML.Forms "INCLUDE"
-- Use this feature test entity to validate that a document
contains no forms, which may not be supported in minimal
implementations
-->
<!--============== Imported Names ==============================-->
<!ENTITY % Content-Type "CDATA"
-- meaning an internet media type
(aka MIME content type, as per RFC1521)
-->
<!ENTITY % HTTP-Method "GET | POST"
-- as per HTTP specification, in progress
-->
<!ENTITY % URI "CDATA" -- uniform resource identifier -->
<!--========= DTD "Macros" =====================-->
<!ENTITY % Length "CDATA" -- number followed by optional units -->
<!ENTITY % heading "H1|H2|H3|H4|H5|H6">
<!ENTITY % list " UL | OL | DIR | MENU " >
<!ENTITY % attrs -- common attributes for elements --
'ID ID #IMPLIED -- element identifier --
LANG NAME #IMPLIED -- RFC 1766 language tag --
DIR (ltr|rtl) #IMPLIED -- text directionality --'>
<!ENTITY % size
'WIDTH %Length #IMPLIED -- desired width in units --
HEIGHT %Length #IMPLIED -- desired height in units --'>
<!ENTITY % align.simple
'ALIGN (top|middle|bottom) #IMPLIED -- glyph alignment --'>
<!ENTITY % align
'ALIGN (top|middle|bottom|left|center|right) #IMPLIED -- float or glyph alignment --
HSPACE %Length #IMPLIED -- text stays this far away horizontally --
VSPACE %Length #IMPLIED -- text stays this far away vertically --
FLOWTO NAME #IMPLIED -- flow text around float until this ID --'>
<!ENTITY % just -- an attribute for text justification --
'ALIGN (left|right|center|justify) #IMPLIED'>
<!--======= Character mnemonic entities =================-->
<!ENTITY % ISOlat1 PUBLIC
"ISO 8879-1986//ENTITIES Added Latin 1//EN//HTML">
%ISOlat1;
<!--Entities for markup significant characters -->
<!ENTITY amp CDATA "&" -- ampersand -->
<!ENTITY gt CDATA ">" -- greater than -->
<!ENTITY lt CDATA "<" -- less than -->
<!ENTITY quot CDATA """ -- double quote -->
<!--Entities for language-dependent presentation (BIDI and contextual analysis) -->
<!ENTITY zwnj CDATA "‌"-- zero width non-joiner-->
<!ENTITY zwj CDATA "‍"-- zero width joiner-->
<!ENTITY lrm CDATA "‎"-- left-to-right mark-->
<!ENTITY rlm CDATA "‏"-- right-to-left mark-->
<!--========= SGML Document Access (SDA) Parameter Entities =====-->
<!-- HTML 2.0 contains SGML Document Access (SDA) fixed attributes
in support of easy transformation to the International Committee
for Accessible Document Design (ICADD) DTD
"-//EC-USA-CDA/ICADD//DTD ICADD22//EN".
ICADD applications are designed to support usable access to
structured information by print-impaired individuals through
Braille, large print and voice synthesis. For more information on
SDA & ICADD:
- ISO 12083:1993, Annex A.8, Facilities for Braille,
large print and computer voice
- ICADD ListServ
<ICADD%ASUACAD.BITNET@ARIZVM1.ccit.arizona.edu>
- Usenet news group bit.listserv.easi
- Recording for the Blind, +1 800 221 4792
-->
<!ENTITY % SDAFORM "SDAFORM CDATA #FIXED"
-- one to one mapping -->
<!ENTITY % SDARULE "SDARULE CDATA #FIXED"
-- context-sensitive mapping -->
<!ENTITY % SDAPREF "SDAPREF CDATA #FIXED"
-- generated text prefix -->
<!ENTITY % SDASUFF "SDASUFF CDATA #FIXED"
-- generated text suffix -->
<!ENTITY % SDASUSP "SDASUSP NAME #FIXED"
-- suspend transform process -->
<!--========== Text Markup =====================-->
<![ %HTML.Highlighting [
<!ENTITY % font " TT | B | I ">
<!ENTITY % phrase "EM | STRONG | CODE | SAMP | KBD | VAR | CITE">
<!ENTITY % text "#PCDATA|A|EMBED|IMG|BR|%phrase|%font|SPAN|Q|BDO|SUP|SUB">
<!ELEMENT (%font;|%phrase) - - (%text)*>
<!ATTLIST ( TT | CODE | SAMP | KBD | VAR )
%attrs;
%SDAFORM; "Lit"
>
<!ATTLIST ( B | STRONG )
%attrs;
%SDAFORM; "B"
>
<!ATTLIST ( I | EM | CITE )
%attrs;
%SDAFORM; "It"
>
<!-- <TT> Typewriter text -->
<!-- <B> Bold text -->
<!-- <I> Italic text -->
<!-- <EM> Emphasized phrase -->
<!-- <STRONG> Strong emphasis -->
<!-- <CODE> Source code phrase -->
<!-- <SAMP> Sample text or characters -->
<!-- <KBD> Keyboard phrase, e.g. user input -->
<!-- <VAR> Variable phrase or substituable -->
<!-- <CITE> Name or title of cited work -->
<!ENTITY % pre.content "#PCDATA|A|HR|BR|%font|%phrase|SPAN|BDO">
]]>
<!ENTITY % text "#PCDATA|A|EMBED|IMG|BR|SPAN|Q|BDO|SUP|SUB">
<!-- Should the BDO element have an SDAFORM attr.? Which? -->
<!ELEMENT BDO - - (%text)+>
<!ATTLIST BDO
LANG NAME #IMPLIED
DIR (ltr|rtl) #REQUIRED
>
<!-- <BDO> Control bidirectionnal text -->
<!ELEMENT BR - O EMPTY>
<!ATTLIST BR
%SDAPREF; "&#RE;"
>
<!-- <BR> Line break -->
<!-- Should the SPAN element have an SDAFORM attr.? Which? -->
<!ELEMENT SPAN - - (%text)*>
<!ATTLIST SPAN
%attrs;
>
<!-- <SPAN> Generic container -->
<!ELEMENT Q - - (%text)*>
<!ATTLIST Q
%attrs;
%SDAFORM; "It" -- to be verified --
>
<!-- <Q> Short quotation -->
<!ELEMENT (SUP|SUB) - - (#PCDATA)>
<!ATTLIST (SUP|SUB)
%attrs;
>
<!-- <SUP> Superscript -->
<!-- <SUB> Subscript -->
<!--========= Link Markup ======================-->
<!ENTITY % linkType "NAME">
<!ENTITY % link.internal -- attributes for links with implicit presentation resource --
'SRC %URI; #REQUIRED -- resource to retrieve --
PARAMS CDATA #IMPLIED -- presentation specializer --'>
<!ENTITY % link.metainfo -- overall link metainfo --
'TITLE CDATA #IMPLIED -- overall title for resource --
URN %URI #IMPLIED -- global entity name --
REL %linkType #IMPLIED
REV %linkType #IMPLIED '>
<!ENTITY % mime.constraints -- MIME typing constraints --
'ACCEPT CDATA "text/plain" -- applicable media type(s) --
ACCEPT-CHARSET CDATA "ISO-8859-1" -- applicable character encoding(s) --
ACCEPT-ENCODING CDATA "ISO-8859-1" -- applicable content transfer encoding(s) --'>
<![ %HTML.Deprecated [
<!ENTITY % case.metainfo -- link metainfo for specific variant --
'%mime.constraints; -- type constraints --
METHODS NAMES #IMPLIED -- deprecated --'>
]]>
<!ENTITY % case.metainfo -- link metainfo for specific variant --
'%mime.constraints; -- type constraints --'>
<![ %HTML.Recommended [
<!ENTITY % key.value -- key/value pair with typed value --
'NAME NAME #IMPLIED -- keyword, usually required --
VALUE CDATA #IMPLIED -- default value --
%mime.constraints; -- type constraints for value --'>
]]>
<!ENTITY % key.value -- key/value pair with typed value --
'NAME CDATA #IMPLIED -- keyword, usually required --
VALUE CDATA #IMPLIED -- default value --
%mime.constraints; -- type constraints for value --'>
<!ENTITY % linkExtraAttributes
'%link.metainfo;
%case.metainfo;
'>
<![ %HTML.Recommended [
<!ENTITY % A.content "(%text)*"
-- <H1><a name="xxx">Heading</a></H1>
is preferred to
<a name="xxx"><H1>Heading</H1></a>
-->
]]>
<!ENTITY % A.content "(%heading|%text)*">
<!ELEMENT A - - %A.content -(A)>
<!ATTLIST A
%attrs;
HREF CDATA #IMPLIED
NAME CDATA #IMPLIED
%linkExtraAttributes;
%SDAPREF; "<Anchor: #AttList>"
>
<!-- <A> Anchor; source/destination of link -->
<!-- <A NAME="..."> Name of this anchor -->
<!-- <A HREF="..."> Address of link destination -->
<!-- <A URN="..."> Permanent address of destination -->
<!-- <A REL=...> Relationship to destination -->
<!-- <A REV=...> Relationship of destination to this -->
<!-- <A TITLE="..."> Title of destination (advisory) -->
<!-- <A METHODS="..."> Operations on destination (advisory) -->
<!-- <A CHARSET="..."> Charset of destination (advisory) -->
<!--========== Embedded Objects and Images ==========================-->
<!ELEMENT EMBED - - (PARAM*, CAPTION?, EMBED.BODY, CREDIT?)>
<!ATTLIST EMBED
%attrs;
%link.internal;
%link.metainfo;
%case.metainfo;
%size; -- size of reserved area --
%align; -- alignment or float --
%SDAPREF; '<Fig><Xref IDRef="#AttVal(SRC)"><?SDATrans Embed: #AttList>'
%SDASUFF; '</Fig>'
>
<!ELEMENT CAPTION - - (%text;)+ -- caption for floating element -->
<!ATTLIST CAPTION
%attrs;
%align; -- side of rectangle where caption placed --
%SDAPREF; "Caption: "
>
<!ELEMENT EMBED.BODY O O %A.content>
<!ATTLIST EMBED.BODY
%attrs;
>
<!ELEMENT CREDIT - - (%text;)* -- copyright/credit for embedded object -->
<!ATTLIST CREDIT
%attrs;
%SDAFORM; "Fn"
>
<!ELEMENT PARAM - O EMPTY>
<!ATTLIST PARAM
%attrs;
%key.value;
%SDAPREF; "<?SDATrans Param: #AttList>"
>
<!ELEMENT IMG - O EMPTY>
<!ATTLIST IMG
%attrs;
%link.internal;
%align.simple;
ALT CDATA #IMPLIED
ISMAP
|
