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<!-- HTML 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|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 substitutable -->
<!-- <CITE> Name or title of cited work -->

<!ENTITY % pre.content "#PCDATA|A|HR|BR|%font|%phrase|SPAN|BDO">

]]>

<!ENTITY % text "#PCDATA|A|IMG|BR|SPAN|Q|BDO|SUP|SUB">

<!ELEMENT BR - O EMPTY>
<!ATTLIST BR

%SDAPREF; "&#RE;"
>

<!-- <BR> Line break -->

<!ELEMENT SPAN - - (%text)*>
<!ATTLIST SPAN
%attrs;
%SDAFORM; "other #Attlist"
>

<!-- <SPAN> Generic inline container -->
<!-- <SPAN DIR=...> New counterflow embedding -->
<!-- <SPAN LANG="..."> Language of contents -->

<!ELEMENT Q - - (%text)*>
<!ATTLIST Q
%attrs;
%SDAPREF; '"'
%SDASUFF; '"'
>

<!-- <Q> Short quotation -->
<!-- <Q LANG=xx> Language of quotation is xx -->
<!-- <Q DIR=...> New conterflow embedding -->

<!ELEMENT BDO - - (%text)+>
<!ATTLIST BDO
LANG NAME #IMPLIED
DIR (ltr|rtl) #REQUIRED
ID ID #IMPLIED
CLASS NAMES #IMPLIED
%SDAPREF "Bidi Override #Attval(DIR): "
%SDASUFF "End Bidi"
>

<!-- <BDO DIR=...> Override directionality of text to value of DIR -->
<!-- <BDO LANG=...> Language of contents -->

<!ELEMENT (SUP|SUB) - - (#PCDATA)>
<!ATTLIST (SUP)
%attrs;
%SDAPREF "Superscript(#content)"
>
<!ATTLIST (SUB)
%attrs;
%SDAPREF "Subscript(#content)"
>

<!-- <SUP> Superscript -->
<!-- <SUB> Subscript -->

<!--========= Link Markup ======================-->

<!ENTITY % linkType "NAMES">

<!ENTITY % linkExtraAttributes
"REL %linkType #IMPLIED
REV %linkType #IMPLIED
URN CDATA #IMPLIED
TITLE CDATA #IMPLIED
METHODS NAMES #IMPLIED
CHARSET NAME #IMPLIED
">

<![ %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) -->
<!-- <A LANG="..."> Language of contents btw <A> and </A> -->
<!-- <A DIR=...> Contents is a new counterflow embedding -->

<!--========== Images ==========================-->

<!ELEMENT IMG - O EMPTY>
<!ATTLIST IMG
%attrs;
SRC CDATA #REQUIRED
ALT CDATA #IMPLIED
ALIGN (top|middle|bottom) #IMPLIED
ISMAP (ISMAP) #IMPLIED
%SDAPREF; "<Fig><?SDATrans Img: #AttList>#AttVal(Alt)</Fig>"
>

<!-- <IMG> Image; icon, glyph or illustration -->
<!-- <IMG SRC="..."> Address of image object -->
<!-- <IMG ALT="..."> Textual alternative -->
<!-- <IMG ALIGN=...> Position relative to text -->
<!-- <IMG LANG=...> Image contains "text" in that language -->
<!-- <IMG DIR=...> Inline image acts as a RTL or LTR
embedding w/r to BIDI algorithm -->
<!-- <IMG ISMAP> Each pixel can be a link -->

<!--========== Paragraphs=======================-->

<!ELEMENT P - O (%text)*>
<!ATTLIST P
%attrs;
%just;
%SDAFORM; "Para"
>

<!-- <P> Paragraph -->
<!-- <P LANG="..."> Language of paragraph text -->
<!-- <P DIR=...> Base directionality of paragraph -->
<!-- <P ALIGN=...> Paragraph alignment (justification) -->

<!--========== Headings, Titles, Sections ===============-->

<!ELEMENT HR - O EMPTY>
<!ATTLIST HR
%just;
%SDAPREF; "&#RE;&#RE;"
>

<!-- <HR> Horizontal rule -->

<!ELEMENT ( %heading ) - - (%text;)*>
<!ATTLIST H1
%attrs;
%just;
%SDAFORM; "H1"

>
<!ATTLIST H2
%attrs;
%just;
%SDAFORM; "H2"
>
<!ATTLIST H3
%attrs;
%just;
%SDAFORM; "H3"
>
<!ATTLIST H4
%attrs;
%just;
%SDAFORM; "H4"
>
<!ATTLIST H5
%attrs;
%just;
%SDAFORM; "H5"
>
<!ATTLIST H6
%attrs;
%just;
%SDAFORM; "H6"
>

<!-- <H1> Heading, level 1 -->
<!-- <H2> Heading, level 2 -->
<!-- <H3> Heading, level 3 -->
<!-- <H4> Heading, level 4 -->
<!-- <H5> Heading, level 5 -->
<!-- <H6> Heading, level 6 -->

<!--========== Text Flows ======================-->

<![ %HTML.Forms [
<!ENTITY % block.forms "BLOCKQUOTE | FORM | ISINDEX">
]]>

<!ENTITY % block.forms "BLOCKQUOTE">

<![ %HTML.Deprecated [
<!ENTITY % preformatted "PRE | XMP | LISTING">
]]>

<!ENTITY % preformatted "PRE">

<!ENTITY % block "P | %list | DL
| %preformatted
| %block.forms">

<!ENTITY % flow "(%text|%block)*">

<!ENTITY % pre.content "#PCDATA | A | HR | BR | SPAN | BDO">
<!ELEMENT PRE - - (%pre.content)*>
<!ATTLIST PRE
%attrs;
WIDTH NUMBER #implied
%SDAFORM; "Lit"
>

<!-- <PRE> Preformatted text -->
<!-- <PRE WIDTH=...> Maximum characters per line -->
<!-- <PRE DIR=...> Base direction of preformatted block -->
<!-- <PRE LANG=...> Language of contents -->

<![ %HTML.Deprecated [

<!ENTITY % literal "CDATA"
-- historical, non-conforming parsing mode where
the only markup signal is the end tag
in full
-->

<!ELEMENT (XMP|LISTING) - - %literal>
<!ATTLIST XMP
%attrs;
%SDAFORM; "Lit"
%SDAPREF; "Example:&#RE;"
>
<!ATTLIST LISTING
%attrs;
%SDAFORM; "Lit"
%SDAPREF; "Listing:&#RE;"
>

<!-- <XMP> Example section -->
<!-- <LISTING> Computer listing -->

<!ELEMENT PLAINTEXT - O %literal>
<!-- <PLAINTEXT> Plain text passage -->

<!ATTLIST PLAINTEXT
%attrs;
%SDAFORM; "Lit"

>
]]>

<!--========== Lists ==================-->

<!ELEMENT DL - - (DT | DD)+>
<!ATTLIST DL
%attrs;
COMPACT (COMPACT) #IMPLIED
%SDAFORM; "List"
%SDAPREF; "Definition List:"
>

<!ELEMENT DT - O (%text)*>
<!ATTLIST DT
%attrs;
%SDAFORM; "Term"
>

<!ELEMENT DD - O %flow>
<!ATTLIST DD
%attrs;
%SDAFORM; "LItem"
>

<!-- <DL> Definition list, or glossary -->
<!-- <DL COMPACT> Compact style list -->
<!-- <DT> Term in definition list -->
<!-- <DD> Definition of term -->

<!ELEMENT (OL|UL) - - (LI)+>
<!ATTLIST OL
%attrs;
%just;
COMPACT (COMPACT) #IMPLIED
%SDAFORM; "List"
>
<!ATTLIST UL
%attrs;
%just;
COMPACT (COMPACT) #IMPLIED
%SDAFORM; "List"
>
<!-- <UL> Unordered list -->
<!-- <UL COMPACT> Compact list style -->
<!-- <OL> Ordered, or numbered list -->
<!-- <OL COMPACT> Compact list style -->

<!ELEMENT (DIR|MENU) - - (LI)+ -(%block)>
<!ATTLIST DIR
%attrs;
%just;
COMPACT (COMPACT) #IMPLIED
%SDAFORM; "List"
%SDAPREF; "<LHead>Directory</LHead>"
>
<!ATTLIST MENU
%attrs;
%just;
COMPACT (COMPACT) #IMPLIED
%SDAFORM; "List"
%SDAPREF; "<LHead>Menu</LHead>"
>

<!-- <DIR> Directory list -->
<!-- <DIR COMPACT> Compact list style -->
<!-- <MENU> Menu list -->
<!-- <MENU COMPACT> Compact list style -->

<!ELEMENT LI - O %flow>
<!ATTLIST LI
%attrs;
%just;
%SDAFORM; "LItem"
>

<!-- <LI> List item -->

<!--========== Document Body ===================-->

<![ %HTML.Recommended [
<!ENTITY % body.content "(%heading|%block|HR|ADDRESS|IMG)*"
-- <h1>Heading</h1>
<p>Text ...
is preferred to
<h1>Heading</h1>
Text ...
-->
]]>

<!ENTITY % body.content "(%heading | %text | %block |
HR | ADDRESS)*">

<!ELEMENT BODY O O %body.content>
<!ATTLIST BODY
%attrs;

>

<!-- <BODY> Document body -->
<!-- <BODY DIR=...> Base direction of whole body -->
<!-- <BODY LANG=...> Language of contents -->

<!ELEMENT BLOCKQUOTE - - %body.content>
<!ATTLIST BLOCKQUOTE
%attrs;
%just;
%SDAFORM; "BQ"
>

<!-- <BLOCKQUOTE> Quoted passage -->

<!ELEMENT ADDRESS - - (%text|P)*>
<!ATTLIST ADDRESS
%attrs;
%just;
%SDAFORM; "Lit"
%SDAPREF; "Address:&#RE;"
>

<!-- <ADDRESS> Address, signature, or byline -->

<!--======= Forms ====================-->

<![ %HTML.Forms [

<!ELEMENT FORM - - %body.content -(FORM) +(INPUT|SELECT|TEXTAREA)>
<!ATTLIST FORM
%attrs;
ACTION CDATA #IMPLIED
METHOD (%HTTP-Method) GET
ENCTYPE %Content-Type; "application/x-www-form-urlencoded"
%SDAPREF; "<Para>Form:</Para>"
%SDASUFF; "<Para>Form End.</Para>"
>

<!-- <FORM> Fill-out or data-entry form -->
<!-- <FORM ACTION="..."> Address for completed form -->
<!-- <FORM METHOD=...> Method of submitting form -->
<!-- <FORM ENCTYPE="..."> Representation of form data -->
<!-- <FORM DIR=...> Base direction of form -->
<!-- <FORM LANG=...> Language of contents -->

<!ENTITY % InputType "(TEXT | PASSWORD | CHECKBOX |

RADIO | SUBMIT | RESET |
IMAGE | HIDDEN | FILE )">
<!ELEMENT INPUT - O EMPTY>
<!ATTLIST INPUT
%attrs;
TYPE %InputType TEXT
NAME CDATA #IMPLIED
VALUE CDATA #IMPLIED
SRC CDATA #IMPLIED
CHECKED (CHECKED) #IMPLIED
SIZE CDATA #IMPLIED
MAXLENGTH NUMBER #IMPLIED
ALIGN (top|middle|bottom) #IMPLIED
ACCEPT CDATA #IMPLIED --list of content types --
ACCEPT-CHARSET CDATA #IMPLIED --list of charsets accepted --
%SDAPREF; "Input: "
>

<!-- <INPUT> Form input datum -->
<!-- <INPUT TYPE=...> Type of input interaction -->
<!-- <INPUT NAME=...> Name of form datum -->
<!-- <INPUT VALUE="..."> Default/initial/selected value -->
<!-- <INPUT SRC="..."> Address of image -->
<!-- <INPUT CHECKED> Initial state is "on" -->
<!-- <INPUT SIZE=...> Field size hint -->
<!-- <INPUT MAXLENGTH=...> Data length maximum -->
<!-- <INPUT ALIGN=...> Image alignment -->
<!-- <INPUT ACCEPT="..."> List of desired media types -->
<!-- <INPUT ACCEPT-CHARSET="..."> List of acceptable charsets -->

<!ELEMENT SELECT - - (OPTION+) -(INPUT|SELECT|TEXTAREA)>
<!ATTLIST SELECT
%attrs;
NAME CDATA #REQUIRED
SIZE NUMBER #IMPLIED
MULTIPLE (MULTIPLE) #IMPLIED
%SDAFORM; "List"
%SDAPREF;
"<LHead>Select #AttVal(Multiple)</LHead>"
>

<!-- <SELECT> Selection of option(s) -->
<!-- <SELECT NAME=...> Name of form datum -->
<!-- <SELECT SIZE=...> Options displayed at a time -->
<!-- <SELECT MULTIPLE> Multiple selections allowed -->

<!ELEMENT OPTION - O (#PCDATA)*>
<!ATTLIST OPTION

%attrs;
SELECTED (SELECTED) #IMPLIED
VALUE CDATA #IMPLIED
%SDAFORM; "LItem"
%SDAPREF;
"Option: #AttVal(Value) #AttVal(Selected)"
>

<!-- <OPTION> A selection option -->
<!-- <OPTION SELECTED> Initial state -->
<!-- <OPTION VALUE="..."> Form datum value for this option-->

<!ELEMENT TEXTAREA - - (#PCDATA)* -(INPUT|SELECT|TEXTAREA)>
<!ATTLIST TEXTAREA
%attrs;
NAME CDATA #REQUIRED
ROWS NUMBER #REQUIRED
COLS NUMBER #REQUIRED
ACCEPT-CHARSET CDATA #IMPLIED -- list of charsets accepted --
%SDAFORM; "Para"
%SDAPREF; "Input Text -- #AttVal(Name): "
>

<!-- <TEXTAREA> An area for text input -->
<!-- <TEXTAREA NAME=...> Name of form datum -->
<!-- <TEXTAREA ROWS=...> Height of area -->
<!-- <TEXTAREA COLS=...> Width of area -->

]]>

<!--======= Document Head ======================-->

<![ %HTML.Recommended [
<!ENTITY % head.extra "">
]]>
<!ENTITY % head.extra "& NEXTID?">

<!ENTITY % head.content "TITLE & ISINDEX? & BASE? %head.extra">

<!ELEMENT HEAD O O (%head.content) +(META|LINK)>
<!ATTLIST HEAD
%attrs; >

<!-- <HEAD> Document head -->

<!ELEMENT TITLE - - (#PCDATA)* -(META|LINK)>
<!ATTLIST TITLE

%attrs;
%SDAFORM; "Ti" >

<!-- <TITLE> Title of document -->

<!ELEMENT LINK - O EMPTY>
<!ATTLIST LINK
%attrs;
HREF CDATA #REQUIRED
%linkExtraAttributes;
%SDAPREF; "Linked to : #AttVal (TITLE) (URN) (HREF)>" >

<!-- <LINK> Link from this document -->
<!-- <LINK HREF="..."> Address of link destination -->
<!-- <LINK URN="..."> Lasting name of destination -->
<!-- <LINK REL=...> Relationship to destination -->
<!-- <LINK REV=...> Relationship of destination to this -->
<!-- <LINK TITLE="..."> Title of destination (advisory) -->
<!-- <LINK CHARSET="..."> Charset of destination (advisory) -->
<!-- <LINK METHODS="..."> Operations allowed (advisory) -->

<!ELEMENT ISINDEX - O EMPTY>
<!ATTLIST ISINDEX
%attrs;
%SDAPREF;
"<Para>[Document is indexed/searchable.]</Para>">

<!-- <ISINDEX> Document is a searchable index -->

<!ELEMENT BASE - O EMPTY>
<!ATTLIST BASE
HREF CDATA #REQUIRED >

<!-- <BASE> Base context document -->
<!-- <BASE HREF="..."> Address for this document -->

<!ELEMENT NEXTID - O EMPTY>
<!ATTLIST NEXTID
N CDATA #REQUIRED >

<!-- <NEXTID> Next ID to use for link name -->
<!-- <NEXTID N=...> Next ID to use for link name -->

<!ELEMENT META - O EMPTY>
<!ATTLIST META
HTTP-EQUIV NAME #IMPLIED
NAME NAME #IMPLIED
CONTENT CDATA #REQUIRED >

<!-- <META> Generic Meta-information -->
<!-- <META HTTP-EQUIV=...> HTTP response header name -->
<!-- <META NAME=...> Meta-information name -->
<!-- <META CONTENT="..."> Associated information -->

<!--======= Document Structure =================-->

<![ %HTML.Deprecated [
<!ENTITY % html.content "HEAD, BODY, PLAINTEXT?">
]]>
<!ENTITY % html.content "HEAD, BODY">

<!ELEMENT HTML O O (%html.content)>
<!ENTITY % version.attr "VERSION CDATA #FIXED '%HTML.Version;'">

<!ATTLIST HTML
%attrs;
%version.attr;
%SDAFORM; "Book"
>

<!-- <HTML> HTML Document -->

7.2. SGML Declaration for HTML

<!SGML "ISO 8879:1986"
--
SGML Declaration for HyperText Markup Language version 2.x
(HTML 2.x = HTML 2.0 + i18n).

--

CHARSET
BASESET "ISO Registration Number 177//CHARSET
ISO/IEC 10646-1:1993 UCS-4 with
implementation level 3//ESC 2/5 2/15 4/6"
DESCSET 0 9 UNUSED
9 2 9
11 2 UNUSED
13 1 13
14 18 UNUSED
32 95 32
127 1 UNUSED
128 32 UNUSED
160 2147483486 160
--
In ISO 10646, the positions with hexadecimal
values 0000D800 - 0000DFFF, used in the UTF-16

encoding of UCS-4, are reserved, as well as the last
two code values in each plane of UCS-4, i.e. all
values of the hexadecimal form xxxxFFFE or xxxxFFFF.
These code values or the corresponding numeric
character references must not be included when
generating a new HTML document, and they should be
ignored if encountered when processing a HTML
document.
--

CAPACITY SGMLREF
TOTALCAP 150000
GRPCAP 150000
ENTCAP 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

BASESET "ISO 646IRV:1991//CHARSET
International Reference Version
(IRV)//ESC 2/8 4/2"
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
ATTSPLEN 2100
LITLEN 1024
NAMELEN 72 -- somewhat arbitrary; taken from
internet line length conventions --
PILEN 1024
TAGLVL 100

TAGLEN 2100
GRPGTCNT 150
GRPCNT 64

FEATURES
MINIMIZE
DATATAG NO
OMITTAG YES
RANK NO
SHORTTAG YES
LINK
SIMPLE NO
IMPLICIT NO
EXPLICIT NO
OTHER
CONCUR NO
SUBDOC NO
FORMAL YES
APPINFO "SDA" -- conforming SGML Document Access application
--
>

7.3. ISO Latin 1 entity set

The following public text lists each of the characters specified in
the Added Latin 1 entity set, along with its name, syntax for use,
and description. This list is derived from ISO Standard
8879:1986//ENTITIES Added Latin 1//EN. HTML includes the entire
entity set, and adds entities for all missing characters in the right
part of ISO-8859-1.

<!-- (C) International Organization for Standardization 1986
Permission to copy in any form is granted for use with
conforming SGML systems and applications as defined in
ISO 8879, provided this notice is included in all copies.
-->
<!-- Character entity set. Typical invocation:
<!ENTITY % ISOlat1 PUBLIC
"ISO 8879-1986//ENTITIES Added Latin 1//EN//HTML">
%ISOlat1;
-->
<!ENTITY nbsp CDATA "&#160;" -- no-break space -->
<!ENTITY iexcl CDATA "&#161;" -- inverted exclamation mark -->
<!ENTITY cent CDATA "&#162;" -- cent sign -->
<!ENTITY pound CDATA "&#163;" -- pound sterling sign -->
<!ENTITY curren CDATA "&#164;" -- general currency sign -->
<!ENTITY yen CDATA "&#165;" -- yen sign -->
<!ENTITY brvbar CDATA "&#166;" -- broken (vertical) bar -->

<!ENTITY sect CDATA "&#167;" -- section sign -->
<!ENTITY uml CDATA "&#168;" -- umlaut (dieresis) -->
<!ENTITY copy CDATA "&#169;" -- copyright sign -->
<!ENTITY ordf CDATA "&#170;" -- ordinal indicator, feminine -->
<!ENTITY laquo CDATA "&#171;" -- angle quotation mark, left -->
<!ENTITY not CDATA "&#172;" -- not sign -->
<!ENTITY shy CDATA "&#173;" -- soft hyphen -->
<!ENTITY reg CDATA "&#174;" -- registered sign -->
<!ENTITY macr CDATA "&#175;" -- macron -->
<!ENTITY deg CDATA "&#176;" -- degree sign -->
<!ENTITY plusmn CDATA "&#177;" -- plus-or-minus sign -->
<!ENTITY sup2 CDATA "&#178;" -- superscript two -->
<!ENTITY sup3 CDATA "&#179;" -- superscript three -->
<!ENTITY acute CDATA "&#180;" -- acute accent -->
<!ENTITY micro CDATA "&#181;" -- micro sign -->
<!ENTITY para CDATA "&#182;" -- pilcrow (paragraph sign) -->
<!ENTITY middot CDATA "&#183;" -- middle dot -->
<!ENTITY cedil CDATA "&#184;" -- cedilla -->
<!ENTITY sup1 CDATA "&#185;" -- superscript one -->
<!ENTITY ordm CDATA "&#186;" -- ordinal indicator, masculine -->
<!ENTITY raquo CDATA "&#187;" -- angle quotation mark, right -->
<!ENTITY frac14 CDATA "&#188;" -- fraction one-quarter -->
<!ENTITY frac12 CDATA "&#189;" -- fraction one-half -->
<!ENTITY frac34 CDATA "&#190;" -- fraction three-quarters -->
<!ENTITY iquest CDATA "&#191;" -- inverted question mark -->
<!ENTITY Agrave CDATA "&#192;" -- capital A, grave accent -->
<!ENTITY Aacute CDATA "&#193;" -- capital A, acute accent -->
<!ENTITY Acirc CDATA "&#194;" -- capital A, circumflex accent -->
<!ENTITY Atilde CDATA "&#195;" -- capital A, tilde -->
<!ENTITY Auml CDATA "&#196;" -- capital A, dieresis or umlaut -->
<!ENTITY Aring CDATA "&#197;" -- capital A, ring -->
<!ENTITY AElig CDATA "&#198;" -- capital AE diphthong (ligature) -->
<!ENTITY Ccedil CDATA "&#199;" -- capital C, cedilla -->
<!ENTITY Egrave CDATA "&#200;" -- capital E, grave accent -->
<!ENTITY Eacute CDATA "&#201;" -- capital E, acute accent -->
<!ENTITY Ecirc CDATA "&#202;" -- capital E, circumflex accent -->
<!ENTITY Euml CDATA "&#203;" -- capital E, dieresis or umlaut -->
<!ENTITY Igrave CDATA "&#204;" -- capital I, grave accent -->
<!ENTITY Iacute CDATA "&#205;" -- capital I, acute accent -->
<!ENTITY Icirc CDATA "&#206;" -- capital I, circumflex accent -->
<!ENTITY Iuml CDATA "&#207;" -- capital I, dieresis or umlaut -->
<!ENTITY ETH CDATA "&#208;" -- capital Eth, Icelandic -->
<!ENTITY Ntilde CDATA "&#209;" -- capital N, tilde -->
<!ENTITY Ograve CDATA "&#210;" -- capital O, grave accent -->
<!ENTITY Oacute CDATA "&#211;" -- capital O, acute accent -->
<!ENTITY Ocirc CDATA "&#212;" -- capital O, circumflex accent -->
<!ENTITY Otilde CDATA "&#213;" -- capital O, tilde -->
<!ENTITY Ouml CDATA "&#214;" -- capital O, dieresis or umlaut -->

<!ENTITY times CDATA "&#215;" -- multiply sign -->
<!ENTITY Oslash CDATA "&#216;" -- capital O, slash -->
<!ENTITY Ugrave CDATA "&#217;" -- capital U, grave accent -->
<!ENTITY Uacute CDATA "&#218;" -- capital U, acute accent -->
<!ENTITY Ucirc CDATA "&#219;" -- capital U, circumflex accent -->
<!ENTITY Uuml CDATA "&#220;" -- capital U, dieresis or umlaut -->
<!ENTITY Yacute CDATA "&#221;" -- capital Y, acute accent -->
<!ENTITY THORN CDATA "&#222;" -- capital Thorn, Icelandic -->
<!ENTITY szlig CDATA "&#223;" -- small sharp s, German (sz ligature) -->
<!ENTITY agrave CDATA "&#224;" -- small a, grave accent -->
<!ENTITY aacute CDATA "&#225;" -- small a, acute accent -->
<!ENTITY acirc CDATA "&#226;" -- small a, circumflex accent -->
<!ENTITY atilde CDATA "&#227;" -- small a, tilde -->
<!ENTITY auml CDATA "&#228;" -- small a, dieresis or umlaut -->
<!ENTITY aring CDATA "&#229;" -- small a, ring -->
<!ENTITY aelig CDATA "&#230;" -- small ae diphthong (ligature) -->
<!ENTITY ccedil CDATA "&#231;" -- small c, cedilla -->
<!ENTITY egrave CDATA "&#232;" -- small e, grave accent -->
<!ENTITY eacute CDATA "&#233;" -- small e, acute accent -->
<!ENTITY ecirc CDATA "&#234;" -- small e, circumflex accent -->
<!ENTITY euml CDATA "&#235;" -- small e, dieresis or umlaut -->
<!ENTITY igrave CDATA "&#236;" -- small i, grave accent -->
<!ENTITY iacute CDATA "&#237;" -- small i, acute accent -->
<!ENTITY icirc CDATA "&#238;" -- small i, circumflex accent -->
<!ENTITY iuml CDATA "&#239;" -- small i, dieresis or umlaut -->
<!ENTITY eth CDATA "&#240;" -- small eth, Icelandic -->
<!ENTITY ntilde CDATA "&#241;" -- small n, tilde -->
<!ENTITY ograve CDATA "&#242;" -- small o, grave accent -->
<!ENTITY oacute CDATA "&#243;" -- small o, acute accent -->
<!ENTITY ocirc CDATA "&#244;" -- small o, circumflex accent -->
<!ENTITY otilde CDATA "&#245;" -- small o, tilde -->
<!ENTITY ouml CDATA "&#246;" -- small o, dieresis or umlaut -->
<!ENTITY divide CDATA "&#247;" -- divide sign -->
<!ENTITY oslash CDATA "&#248;" -- small o, slash -->
<!ENTITY ugrave CDATA "&#249;" -- small u, grave accent -->
<!ENTITY uacute CDATA "&#250;" -- small u, acute accent -->
<!ENTITY ucirc CDATA "&#251;" -- small u, circumflex accent -->
<!ENTITY uuml CDATA "&#252;" -- small u, dieresis or umlaut -->
<!ENTITY yacute CDATA "&#253;" -- small y, acute accent -->
<!ENTITY thorn CDATA "&#254;" -- small thorn, Icelandic -->
<!ENTITY yuml CDATA "&#255;" -- small y, dieresis or umlaut -->

8. Security Considerations

Anchors, embedded images, and all other elements which contain URIs
as parameters may cause the URI to be dereferenced in response to
user input. In this case, the security considerations of [RFC1738]
apply.

The widely deployed methods for submitting form requests -- HTTP and
SMTP -- provide little assurance of confidentiality. Information
providers who request sensitive information via forms -- especially
by way of the `PASSWORD' type input field (see section 8.1.2 in
[RFC1866]) -- should be aware and make their users aware of the lack
of confidentiality.

Bibliography

[BRYAN88] M. Bryan, "SGML -- An Author's Guide to the Standard
Generalized Markup Language", Addison-Wesley, Reading,
1988.

[ERCS] Extended Reference Concrete Syntax for SGML.
<http://www.sgmlopen.org/sgml/docs/ercs/ercs-
home.html>

[GOLD90] C. F. Goldfarb, "The SGML Handbook", Y. Rubinsky, Ed.,
Oxford University Press, 1990.

[HTTP-1.1] Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,
and T. Berners-Lee, "Hypertext Transfer Protocol --
HTTP/1.1", RFC2068, January 1997.

[ISO-639] ISO 639:1988. International standard -- Code for the
representation of the names of languages. Technical
content in <http://www.sil.org/sgml/iso639a.html>

[ISO-8859] ISO 8859. International standard -- Information pro-
cessing -- 8-bit single-byte coded graphic character
sets -- Part 1: Latin alphabet No. 1 (1987) -- Part 2:
Latin alphabet No. 2 (1987) -- Part 3: Latin alphabet
No. 3 (1988) -- Part 4: Latin alphabet No. 4 (1988) --
Part 5: Latin/Cyrillic alphabet (1988) -- Part 6:
Latin/Arabic alphabet (1987) -- Part : Latin/Greek
alphabet (1987) -- Part 8: Latin/Hebrew alphabet
(1988) -- Part 9: Latin alphabet No. 5 (1989) -- Part
10: Latin alphabet No. 6 (1992)

[ISO-8879] ISO 8879:1986. International standard -- Information
processing -- Text and office systems -- Standard gen-
eralized markup language (SGML).

[ISO-10646] ISO/IEC 10646-1:1993. International standard -- Infor-
mation technology -- Universal multiple-octet coded
character Sset (UCS) -- Part 1: Architecture and basic
multilingual plane.

[NICOL] G.T. Nicol, "The Multilingual World Wide Web",
Electronic Book Technologies, 1995,
<http://www.ebt.com/docs/multling.html>

[NICOL2] G.T. Nicol, "MIME Header Supplemented File Type", Work
in Progress, EBT, October 1995.

[RFC1345] Simonsen, K., "Character Mnemonics & Character Sets",
RFC1345, Rationel Almen Planlaegning, June 1992.

[RFC1468] Murai, J., Crispin M., and E. van der Poel,
"Japanese Character Encoding for Internet Messages",
RFC1468, Keio University, Panda Programming, June
1993.

[RFC2045] Freed, N., and N. Borenstein, "Multipurpose Internet
Mail Extensions (MIME) Part One: Format of Internet
Message Bodies", RFC2045, Innosoft, First Virtual,
November 1996.

[RFC1641] Goldsmith, D., and M.Davis, "Using Unicode with MIME",
RFC1641, Taligent inc., July 1994.

[RFC1642] Goldsmith, D., and M. Davis, "UTF-7: A Mail-safe
Transformation Format of Unicode", RFC1642, Taligent,
Inc., July 1994.

[RFC1738] Berners-Lee, T., Masinter, L., and M. McCahill,
"Uniform Resource Locators (URL)", RFC1738, CERN,
Xerox PARC, University of Minnesota, October 1994.

[RFC1766] Alverstrand, H., "Tags for the Identification of
Languages", RFC1766, UNINETT, March 1995.

[RFC1866] Berners-Lee, T., and D. Connolly, "Hypertext Markup
Language - 2.0", RFC1866, MIT/W3C, November 1995.

[RFC1867] Nebel, E., and L. Masinter, "Form-based File Upload
in HTML", RFC1867, Xerox Corporation, November 1995.

[RFC1942] Raggett, D., "HTML Tables", RFC1942, W3C, May 1996.

[RFC2068] Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,
and T. Berners-Lee, "Hypertext Transfer Protocol --
HTTP/1.1", RFC2068, January 1997.

[SQ91] SoftQuad, "The SGML Primer", 3rd ed., SoftQuad Inc.,
1991.

[TAKADA] Toshihiro Takada, "Multilingual Information Exchange
through the World-Wide Web", Computer Networks and
ISDN Systems, Vol. 27, No. 2, Nov. 1994 , p. 235-241.

[TEI] TEI Guidelines for Electronic Text Encoding and Inter-
change. <http://etext.virgina.edu/TEI.html>

[UNICODE] The Unicode Consortium, "The Unicode Standard --
Worldwide Character Encoding -- Version 1.0", Addison-
Wesley, Volume 1, 1991, Volume 2, 1992, and Technical
Report #4, 1993. The BIDI algorithm is in appendix A
of volume 1, with corrections in appendix D of volume
2.

[UTF-8] ISO/IEC 10646-1:1993 AMENDMENT 2 (1996). UCS Transfor-
mation Format 8 (UTF-8).

[VANH90] E. van Hervijnen, "Practical SGML", Kluwer Academicq
Publishers Group, Norwell and Dordrecht, 1990.

Authors' Addresses

Frangois Yergeau
Alis Technologies
100, boul. Alexis-Nihon, bureau 600
Montrial QC H4M 2P2
Canada

Tel: +1 (514) 747-2547
Fax: +1 (514) 747-2561
EMail: fyergeau@alis.com

Gavin Thomas Nicol
Electronic Book Technologies, Japan
1-29-9 Tsurumaki,
Setagaya-ku,
Tokyo
Japan

Tel: +81-3-3230-8161
Fax: +81-3-3230-8163
EMail: gtn@ebt.com, gtn@twics.co.jp

Glenn Adams
Spyglass
118 Magazine Street
Cambridge, MA 02139
U.S.A.

Tel: +1 (617) 864-5524
Fax: +1 (617) 864-4965
EMail: glenn@spyglass.com

Martin J. Duerst
Multimedia-Laboratory
Department of Computer Science
University of Zurich
Winterthurerstrasse 190
CH-8057 Zurich
Switzerland

Tel: +41 1 257 43 16
Fax: +41 1 363 00 35
EMail: mduerst@ifi.unizh.ch