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<!-- html.dtd |
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|
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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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$Id: html.dtd,v 1.7.2.2 1994/04/01 20:30:17 connolly Exp $ |
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--> |
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<!-- DTD definitions --> |
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<!ENTITY % heading "H1|H2|H3|H4|H5|H6" > |
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<!ENTITY % list " UL | OL | DIR | MENU "> |
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<!ENTITY % literal " XMP | LISTING "> |
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|
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<!ENTITY % bodyelement |
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"P | HR | %heading | |
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%list | DL | ADDRESS | PRE | BLOCKQUOTE |
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| %literal"> |
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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 Uniform Resource Locator, |
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as defined. (A URN may also be usable here when defined.) |
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--> |
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|
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<!ENTITY % linkattributes |
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"NAME NMTOKEN #IMPLIED |
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HREF %URL; #IMPLIED |
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REL CDATA #IMPLIED -- forward relationship type -- |
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REV CDATA #IMPLIED -- reversed relationship type |
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to referent data: |
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|
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PARENT CHILD, SIBLING, NEXT, TOP, |
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DEFINITION, UPDATE, ORIGINAL etc. -- |
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URN CDATA #IMPLIED -- universal resource number -- |
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TITLE CDATA #IMPLIED -- advisory only -- |
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METHODS NAMES #IMPLIED -- supported public methods of the object: |
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TEXTSEARCH, GET, HEAD, ... -- |
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"> |
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|
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<!-- Document Element --> |
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|
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<!ELEMENT HTML O O (HEAD, BODY)> |
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<!ELEMENT HEAD O O ( TITLE? & ISINDEX? & NEXTID? & LINK* |
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& BASE?)> |
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|
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<!ELEMENT TITLE - - (#PCDATA) |
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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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|
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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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|
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<!ELEMENT LINK - O EMPTY> |
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<!ATTLIST LINK |
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%linkattributes> |
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|
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<!ELEMENT BASE - O EMPTY -- Reference context for URLS --> |
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<!ATTLIST BASE |
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|
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HREF %URL; #IMPLIED |
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|
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> |
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<!ENTITY % inline "EM | STRONG | |
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CODE | SAMP | KBD | KEY | VAR | DFN | CITE " |
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> |
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|
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<!ELEMENT (%inline;) - - (#PCDATA | A)+> |
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<!ELEMENT (B | I | U | TT) - - (#PCDATA | A)+> |
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|
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<!ENTITY % text "#PCDATA | IMG | %inline; | BR"> |
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|
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<!ENTITY % htext "A | %text" -- Plus links, no structure --> |
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|
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<!ENTITY % stext -- as htext but also nested structure -- |
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"P | HR | %list | DL | ADDRESS |
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| PRE | BLOCKQUOTE |
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| %literal | %htext"> |
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|
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<!ENTITY % block -- as htext but also nested structure -- |
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"P | HR | %list | DL |
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| PRE | BLOCKQUOTE | ADDRESS |
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| %literal"> |
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|
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|
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<!ELEMENT BODY O O (%heading | %block)+> |
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|
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<!ELEMENT A - - ANY> |
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<!ATTLIST A |
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%linkattributes; |
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> |
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|
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<!ELEMENT IMG - O EMPTY -- Embedded image --> |
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<!ATTLIST IMG |
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SRC %URL; #IMPLIED -- URL of document to embed -- |
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> |
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|
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<!ELEMENT P - O (%htext)+ -- paragraph --> |
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<!ELEMENT (HR|BR) - O EMPTY -- horizontal rule --> |
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|
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<!ELEMENT ( %heading ) - - (%htext;)+> |
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|
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<!ELEMENT DL - - (DT+, DD+)+> |
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<!-- structured DL's |
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--> |
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|
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<!ELEMENT DT - O (%htext)+> |
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<!ELEMENT DD - O (%htext|%block)+> |
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|
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<!ELEMENT (%list) - - (LI)+> |
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|
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<!ATTLIST (%list) |
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COMPACT NAME #IMPLIED -- COMPACT, etc.-- |
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> |
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|
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<!ELEMENT LI - O (%htext|%block)+> |
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|
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<!ELEMENT BLOCKQUOTE - - ((%htext|P)+, ADDRESS?)+ |
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-- for quoting some other source --> |
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<!ELEMENT ADDRESS - - (%htext;)+> |
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<!ELEMENT PRE - - (#PCDATA | TT | B | I | U | A | P | BR)+> |
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<!ATTLIST PRE |
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WIDTH NUMBER #implied |
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> |
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<!-- Mnemonic character entities. --> |
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<!ENTITY % ISOlat1 PUBLIC |
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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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<!ENTITY amp "&" -- ampersand --> |
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<!ENTITY gt ">" -- greater than --> |
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<!ENTITY lt "<" -- less than --> |
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<!ENTITY nbsp " " -- @@should be NON_BREAKING space --> |
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<!-- @@ should add entites for processing instructions |
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for line break, centering, etc. --> |
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<!-- deprecated elements --> |
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<!ELEMENT (%literal) - - CDATA> |
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<!ELEMENT PLAINTEXT - O EMPTY> |
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