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Aggiungiamo, in appendice al corso, la definizione di tipo di documento (DTD) per lo SMIL 1.0 del w3c con la traduzione dei commenti.

<!-- Questa è l' XML document type definition (DTD) per SMIL 1.0.
Data: 1998/06/15 08:56:30
Autore:
Jacco van Ossenbruggen <jrvosse@cwi.nl>
Sjoerd Mullender <sjoerd@cwi.nl>
Altre informazioni su SMIL sono disponibili in:
http://www.w3.org/AudioVideo/
-->
<!-- Entità usate generalmente -->
<!ENTITY % id-attr "id ID #IMPLIED">
<!ENTITY % title-attr "title CDATA #IMPLIED">
<!ENTITY % skip-attr "skip-content (true|false) 'true'">
<!ENTITY % desc-attr "
%title-attr;
abstract CDATA #IMPLIED
author CDATA #IMPLIED
copyright CDATA #IMPLIED
">
<!--==============SMIL Document===============-->
<!--
L' elemento root di SMIL contiene tutti gli altri elementi .
-->
<!ELEMENT smil (head?,body?)>
<!ATTLIST smil
%id-attr;
>
<!--=========== La Document Head ===============-->
<!ENTITY % layout-section "layout|switch">
<!ENTITY % head-element "(meta*,((%layout-section;), meta*))?">
<!ELEMENT head %head-element;>
<!ATTLIST head %id-attr;>
<!--==========L' Elemento Layout===============-->
<!--
Layout contiene le region e il root-layout elements definito dallo
smil-basic-layout.
-->
<!ELEMENT layout ANY>
<!ATTLIST layout
%id-attr;
type CDATA "text/smil-basic-layout"
>
<!--======L' Elemento Region ===========-->
<!ENTITY % viewport-attrs "
height CDATA #IMPLIED
width CDATA #IMPLIED
background-color CDATA #IMPLIED
">
<!ELEMENT region EMPTY>
<!ATTLIST region
%id-attr;
%title-attr;
%viewport-attrs;
left CDATA "0"
top CDATA "0"
z-index CDATA "0"
fit (hidden|fill|meet|scroll|slice) "hidden"
%skip-attr;
>
<!--=================== L' Elemento Root-
layout================================--> <!ELEMENT root-layout EMPTY>
<!ATTLIST root-layout
%id-attr;
%title-attr;
%viewport-attrs;
%skip-attr;
>
<!--=============L' Elemento Meta =================-->
<!ELEMENT meta EMPTY>
<!ATTLIST meta
name NMTOKEN #REQUIRED
content CDATA #REQUIRED
%skip-attr;
>
<!--============= Il Document Body ===============-->
<!ENTITY % media-object "audio|video|text|img|animation|textstream|ref">
<!ENTITY % schedule "par|seq|(%media-object;)">
<!ENTITY % inline-link "a">
<!ENTITY % assoc-link "anchor">
<!ENTITY % link "%inline-link;">
<!ENTITY % container-content "(%schedule;)|switch|(%link;)">
<!ENTITY % body-content "(%container-content;)">
<!ELEMENT body (%body-content;)*>
<!ATTLIST body %id-attr;>
<!--=============Attributi Synchronization ===========-->
<!ENTITY % sync-attributes "
begin CDATA #IMPLIED
end CDATA #IMPLIED
">
<!--======== Attributi dei Parametri Switch =========-->
<!ENTITY % system-attribute "
system-bitrate CDATA #IMPLIED
system-language CDATA #IMPLIED
system-required NMTOKEN #IMPLIED
system-screen-size CDATA #IMPLIED
system-screen-depth CDATA #IMPLIED
system-captions (on|off) #IMPLIED
system-overdub-or-caption (caption|overdub) #IMPLIED
">
<!--=========Attributi Fill ====================-->
<!ENTITY % fill-attribute "
fill (remove|freeze) 'remove'
">
<!--============= L' Elemento Parallel===============-->
<!ENTITY % par-content "%container-content;">
<!ELEMENT par (%par-content;)*>
<!ATTLIST par
%id-attr;
%desc-attr;
endsync CDATA "last"
dur CDATA #IMPLIED
repeat CDATA "1"
region IDREF #IMPLIED
%sync-attributes;
%system-attribute;
>
<!--============ L' Elemento Sequential ===========-->
<!ENTITY % seq-content "%container-content;">
<!ELEMENT seq (%seq-content;)*>
<!ATTLIST seq
%id-attr;
%desc-attr;
dur CDATA #IMPLIED
repeat CDATA "1"
region IDREF #IMPLIED
%sync-attributes;
%system-attribute;
>
<!--============= L' Elemento Switch =================-->
<!-- Nell' head, l' elemento switch può contenere solo gli elementi di
layout, -->
<!ENTITY % switch-content "layout|(%container-content;)">
<!ELEMENT switch (%switch-content;)*>
<!ATTLIST switch
%id-attr;
%title-attr;
>
<!--============= L' Elemento Media Object =============-->
<!-- SMIL definisce solamente la struttura. I dati real media sono definiti
dall'attributo src del media objects.
-->
<!-- Inoltre,essi hanno i seguenti attributi che sono definiti dalle
specifiche SMIL: -->
<!ENTITY % mo-attributes "
%id-attr;
%desc-attr;
region IDREF #IMPLIED
alt CDATA #IMPLIED
longdesc CDATA #IMPLIED
src CDATA #IMPLIED
type CDATA #IMPLIED
dur CDATA #IMPLIED
repeat CDATA '1'
%fill-attribute;
%sync-attributes;
%system-attribute;
">
<!ENTITY % mo-content "(%assoc-link;)*">
<!ENTITY % clip-attrs "
clip-begin CDATA #IMPLIED
clip-end CDATA #IMPLIED
">
<!ELEMENT ref %mo-content;>
<!ELEMENT audio %mo-content;>
<!ELEMENT img %mo-content;>
<!ELEMENT video %mo-content;>
<!ELEMENT text %mo-content;>
<!ELEMENT textstream %mo-content;>
<!ELEMENT animation %mo-content;>
<!ATTLIST ref %mo-attributes; %clip-attrs;>
<!ATTLIST audio %mo-attributes; %clip-attrs;>
<!ATTLIST video %mo-attributes; %clip-attrs;>
<!ATTLIST animation %mo-attributes; %clip-attrs;>
<!ATTLIST textstream %mo-attributes; %clip-attrs;>
<!ATTLIST text %mo-attributes;>
<!ATTLIST img %mo-attributes;>
<!--=============== L' Elemento Link ===========-->
<!ENTITY % smil-link-attributes "
%id-attr;
%title-attr;
href CDATA #REQUIRED
show (replace|new|pause) 'replace'
">
<!--===========L' Elemento Inline Link========-->
<!ELEMENT a (%schedule;|switch)*>
<!ATTLIST a
%smil-link-attributes;
>
<!--=========L' Elemento Associated Link========-->
<!ELEMENT anchor EMPTY>
<!ATTLIST anchor
%skip-attr;
%smil-link-attributes;
%sync-attributes;
coords CDATA #IMPLIED

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