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<!SGML "ISO 8879:1986" |
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Document Type Definition for the HyperText Markup Language |
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as used by the World Wide Web application (HTML DTD). |
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NOTE: This is a definition of HTML with respect to |
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SGML, and assumes an understaning of SGML terms. |
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For a description of HTML in layman's terms, see |
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"HTML: A Representation for Nodes in the World Wide Web" |
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by Dan Connolly. |
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aka |
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http://info.cern.ch/hypertext/WWW/MarkUp/MarkUp.html |
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by <connolly@convex.com> |
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-- |
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CHARSET |
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BASESET "ISO 646:1983//CHARSET |
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International Reference Version (IRV)//ESC 2/5 4/0" |
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DESCSET 0 9 UNUSED |
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9 2 9 |
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11 2 UNUSED |
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13 1 13 |
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14 18 UNUSED |
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32 95 32 |
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127 1 UNUSED |
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CAPACITY SGMLREF |
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TOTALCAP 150000 |
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GRPCAP 150000 |
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SCOPE DOCUMENT |
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SYNTAX |
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SHUNCHAR CONTROLS 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
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19 20 21 22 23 24 25 26 27 28 29 30 31 127 255 |
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BASESET "ISO 646:1983//CHARSET |
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International Reference Version (IRV)//ESC 2/5 4/0" |
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DESCSET 0 128 0 |
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FUNCTION RE 13 |
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RS 10 |
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SPACE 32 |
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TAB SEPCHAR 9 |
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NAMING LCNMSTRT "" |
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UCNMSTRT "" |
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LCNMCHAR ".-" |
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UCNMCHAR ".-" |
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NAMECASE GENERAL YES |
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ENTITY NO |
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DELIM GENERAL SGMLREF |
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SHORTREF SGMLREF |
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NAMES SGMLREF |
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QUANTITY SGMLREF |
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NAMELEN 34 |
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TAGLVL 100 |
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LITLEN 1024 |
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GRPGTCNT 150 |
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GRPCNT 64 |
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FEATURES |
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MINIMIZE |
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DATATAG NO |
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OMITTAG YES |
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RANK NO |
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SHORTTAG NO |
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LINK |
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SIMPLE NO |
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IMPLICIT NO |
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EXPLICIT NO |
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OTHER |
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CONCUR NO |
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SUBDOC NO |
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FORMAL NO |
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APPINFO NONE |
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> |
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<!DOCTYPE HTML [ |
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<!-- |
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$Id$ |
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--> |
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<!-- Regarding clause 6.1, SGML Document: |
Document Type Definition for the HyperText Markup Language (HTML DTD) |
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[1] SGML document = SGML document entity, |
$Id$ |
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(SGML subdocument entity | |
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SGML text entity | non-SGML data entity)* |
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The role of SGML document entity is filled by this DTD, |
Author: Daniel W. Connolly <connolly@hal.com> |
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followed by the conventional HTML data stream. |
See Also: html.decl, html-0.dtd, html-1.dtd |
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http://www.hal.com/%7Econnolly/html-spec/index.html |
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http://info.cern.ch/hypertext/WWW/MarkUp2/MarkUp.html |
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--> |
--> |
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<!ENTITY % heading "H1|H2|H3|H4|H5|H6" > |
<!ENTITY HTML.Version |
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<!ENTITY % list "UL|OL|DIR|MENU"> |
"+//ISBN 82-7640-037::WWW//DTD HTML//EN//2.0" |
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<!ENTITY % literal "XMP|LISTING"> |
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-- Typical usage: |
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<!ENTITY % headelement |
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"TITLE | NEXTID | ISINDEX" > |
<!DOCTYPE HTML PUBLIC "+//ISBN 82-7640-037::WWW//DTD HTML//EN"> |
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<html> |
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<!ENTITY % bodyelement |
... |
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"P | A | %heading | %list | DL | ADDRESS | PRE | %literal"> |
</html> |
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-- |
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<!ENTITY % anyelement "HEAD | %headelement; | BODY | %bodyelement;"> |
> |
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<!ELEMENT HTML O O ((%anyelement|#PCDATA)*, PLAINTEXT?)> |
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<!-- Imported Names --> |
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<!ELEMENT HEAD - - (TITLE? & ISINDEX? & NEXTID?)> |
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<!ENTITY % Content-Type "CDATA" |
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<!ELEMENT BODY - - (%bodyelement|#PCDATA)*> |
-- meaning a MIME content type, as per RFC1521 |
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<!ELEMENT TITLE - - CDATA |
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-- The TITLE element is not considered part of the flow of text. |
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It should be displayed, for example as the page header or |
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window title. |
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--> |
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<!ELEMENT ISINDEX - O EMPTY |
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-- WWW clients should offer the option to perform a search on |
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documents containing ISINDEX. |
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--> |
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<!ELEMENT NEXTID - O EMPTY> |
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<!ATTLIST NEXTID N NUMBER #REQUIRED |
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-- The number should be the highest number that appears in |
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any NAME attribute in the document. |
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--> |
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<!ENTITY % URL "CDATA" |
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-- The term URL means a CDATA attribute |
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whose value is a Universal Resource Locator, |
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as defined in ftp://info.cern.ch/pub/www/doc/url3.txt |
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--> |
--> |
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<!ELEMENT A - - (#PCDATA)> |
<!ENTITY % HTTP-Method "GET | POST"> |
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<!ATTLIST A |
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NAME NMTOKEN #IMPLIED |
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HREF %URL; #IMPLIED |
<!-- Include level 1 DTD + block extensions --> |
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TEXT (PLAIN, X-HTML, X-RTF) #IMPLIED |
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-- choose MIME text/plain or text/html content type -- |
<!ENTITY % block-2 "| FORM | ISINDEX"> |
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-- if not specified, inferred from HREF filename -- |
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> |
<!ENTITY % html-1 PUBLIC "+//ISBN 82-7640-037::WWW//DTD HTML Level 1//EN//2.0"> |
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%html-1; |
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<!ELEMENT P - O EMPTY> |
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<!-- P separates paragraphs --> |
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<!-- Forms --> |
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<!ELEMENT (%heading) - - (#PCDATA|A)+> |
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<!ELEMENT FORM - - %body.content -(FORM) +(INPUT|SELECT|TEXTAREA)> |
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<!ELEMENT DL - - (DT|DD|A|P|#PCDATA)*> |
<!ATTLIST FORM |
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<!-- Content should match ((DT,(A|#PCDATA)+)+,(DD,(A|#PCDATA)+)) |
ACTION %URI #REQUIRED |
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But mixed content is messy. |
METHOD (%HTTP-Method) GET |
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--> |
ENCTYPE %Content-Type; "application/x-www-form-urlencoded" |
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> |
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<!ELEMENT DT - O EMPTY> |
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<!ELEMENT DD - O EMPTY> |
<!ENTITY % InputType "(TEXT | PASSWORD | CHECKBOX | |
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RADIO | SUBMIT | RESET | |
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<!ELEMENT (%list) - - (#PCDATA|LI|A|P)+> |
IMAGE | HIDDEN )"> |
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<!-- Content should match ((LI,(A|#PCDATA)+)+) |
<!ELEMENT INPUT - O EMPTY> |
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But mixed content is messy. |
<!ATTLIST INPUT |
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--> |
TYPE %InputType TEXT |
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NAME CDATA #IMPLIED -- required for all but submit and reset -- |
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<!ELEMENT LI - O EMPTY> |
VALUE CDATA #IMPLIED |
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SRC %URI #IMPLIED -- for image inputs -- |
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<!ELEMENT ADDRESS - - (#PCDATA|A|P)+> |
CHECKED (CHECKED) #IMPLIED |
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SIZE CDATA #IMPLIED -- like NUMBERS, |
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<!ELEMENT PRE - - (#PCDATA|A|P)+> |
but delimited with comma, not space -- |
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<!ATTLIST PRE |
MAXLENGTH NUMBER #IMPLIED |
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WIDTH NUMBER 80 |
ALIGN (top|middle|bottom) #IMPLIED |
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> |
> |
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<!ELEMENT (%literal) - - CDATA> |
<!ELEMENT SELECT - - (OPTION+)> |
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<!ATTLIST SELECT |
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<!ELEMENT PLAINTEXT - O EMPTY> |
NAME CDATA #REQUIRED |
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<!-- The <PLAINTEXT> tag, if present, signals the end of the SGML |
SIZE NUMBER #IMPLIED |
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document entity. The data that follows serves as a non-SGML |
MULTIPLE (MULTIPLE) #IMPLIED |
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data entity. |
> |
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--> |
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<!ELEMENT OPTION - O (#PCDATA)> |
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<!-- Text Entities --> |
<!ATTLIST OPTION |
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SELECTED (SELECTED) #IMPLIED |
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<!-- Characters that may begin a delimiter-in-context sequence |
VALUE CDATA #IMPLIED |
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From "ISO 8879:1986//ENTITIES Numeric and Special Graphic//EN" --> |
> |
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<!ENTITY lt "<"> |
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<!ENTITY gt ">"> |
<!ELEMENT TEXTAREA - - (#PCDATA)> |
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<!ENTITY amp "&"> |
<!ATTLIST TEXTAREA |
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NAME CDATA #REQUIRED |
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<!-- Characters from various Latin alphabets. --> |
ROWS NUMBER #REQUIRED |
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<!ENTITY % ISOlat1 PUBLIC |
COLS NUMBER #REQUIRED |
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"ISO 8879:1986//ENTITIES Added Latin 1//EN"> |
> |
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%ISOlat1; |
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]> |
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