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1 <!--
2 html-hj.dtd
3
4 Document Type Definition for the HyperText Markup Language (HTML
5 DTD) for Sun Microsystems Corp. HotJava environment
6
7
8 Date: 24 Jul 95
9
10 Revisions made by: Mark Gaither (markg@hal.com)
11 Original Author: Dave Raggett <dsr@hplb.hpl.hp.com>
12
13 I have taken the HTML 3.0 DTD dated 16 Mar 95 and added the APP
14 element introduced by Sun Microsystems Corp. to accomodate their
15 Java/HotJava WWW application environment.
16 -->
17
18 <!ENTITY % HTML.Version
19 "-//Sun Micorsystems Corp.//DTD HotJava HTML//EN"
20
21 -- Typical usage:
22
23 <!DOCTYPE HTML PUBLIC "-//Sun Micorsystems Corp.//DTD HotJava HTML//EN">
24 <html>
25 ...
26 </html>
27 --
28 >
29
30 <!--================== Flags for Marked Sections ==========================-->
31
32 <!ENTITY % HTML.Recommended "IGNORE"
33 -- Certain features of the language are necessary for compatibility
34 with widespread usage, but they may compromise the structural
35 integrity of a document. This feature test entity enables
36 a more prescriptive document type definition that eliminates
37 the above features.
38 -->
39
40 <![ %HTML.Recommended [
41 <!ENTITY % HTML.Deprecated "IGNORE">
42 ]]>
43
44 <!ENTITY % HTML.Deprecated "INCLUDE"
45 -- Certain features of the language are necessary for compatibility
46 with earlier versions of the specification, but they tend
47 to be used an implemented inconsistently, and their use is
48 deprecated. This feature test entity enables a document type
49 definition that eliminates these features.
50 -->
51
52 <!ENTITY % HTML.Obsoleted "IGNORE"
53 -- The XMP, LISTING and PLAINTEXT tags are incompatible with SGML
54 and derive from very early versions of HTML. They require non-
55 standard parsers and will cause problems for processing
56 documents with standard SGML tools.
57 -->
58
59 <!--================== Imported Names =====================================-->
60
61 <!ENTITY % Content-Type "CDATA"
62 -- meaning a MIME content type, as per RFC1521
63 -->
64
65 <!ENTITY % HTTP-Method "GET | POST"
66 -- as per HTTP specification
67 -->
68
69 <!ENTITY % URI "CDATA"
70 -- The term URI means a CDATA attribute
71 whose value is a Uniform Resource Identifier,
72 as defined by
73 "Uniform Resource Identifiers" by Tim Berners-Lee
74 aka http://info.cern.ch/hypertext/WWW/Addressing/URL/URI_Overview.html
75 aka RFC 1630
76
77 Note that CDATA attributes are limited by the LITLEN
78 capacity (1024 in the current version of html.decl),
79 so that URIs in HTML have a bounded length.
80
81 -->
82
83 <!ENTITY % REAL "CDATA" -- real numbers (not in SGML) -->
84
85 <!ENTITY % SHAPE "CDATA"
86 -- Shape of hotzone in image.
87
88 All coordinates are assumed to be numbers in the range 0 to 1
89 and interpreted as fractional width/height and measured from
90 the top left corner of the associated image.
91
92 The attribute value is a string taking one of the following forms:
93
94 "default"
95
96 Used to define a default link for the figure background.
97
98 "circle x, y, r"
99
100 (x, y) define the center and r the radius.
101
102 "rect x, y, w, h"
103
104 (x, y) defines upper left, and w and h the width and height.
105
106 "polygon x1, y1, x2, y2, ..."
107
108 Given n pairs of x, y coordinates, the polygon is closed by a
109 line linking the n'th point to the first. Intersecting polygons
110 use the non-zero winding number rule to determine if a point lies
111 inside the polygon.I
112 --
113 >
114
115 <!-- 3.0 Parameter Entities -->
116
117 <!ENTITY % heading "H1|H2|H3|H4|H5|H6">
118
119 <![ %HTML.Obsoleted [
120 <!ENTITY % preformatted "PRE | XMP | LISTING">
121 ]]>
122
123
124 <![ %HTML.Deprecated [
125 <!ENTITY % list "UL | OL | DIR | MENU">
126 <!ENTITY % blockquote "BLOCKQUOTE | BQ">
127 ]]>
128
129 <!ENTITY % list "UL | OL">
130
131 <!ENTITY % blockquote "BQ">
132
133 <!ENTITY % preformatted "PRE">
134
135
136 <!-- The CLASS attribute is used to subclass HTML elements for
137 rendering purposes, when used with style sheets, e.g. DSSSL lite -->
138
139 <!ENTITY % attrs -- common attributes for elements --
140 'id ID #IMPLIED -- as target for hrefs (link ends) --
141 lang CDATA "en.us" -- ISO language, country code --
142 class NAMES #IMPLIED -- for subclassing elements --'>
143
144 <!-- SGML standard forces different NAMES for all attribute values
145 in the same element, regardless of the attribute name! As a result
146 CDATA is used for CLEAR attribute to avoid clash with ALIGN attribute.-->
147
148 <!--
149 When text flows around a figure or table in the margin, you sometimes want
150 to start an element like a header, paragraph or list below the figure rather
151 than alongside it. The CLEAR attribute allows you to move down unconditionally:
152
153 clear=left move down until left margin is clear
154 clear=right move down until right margin is clear
155 clear=all move down until both margins are clear
156
157 Alternatively, you can decide to place the element alongside the figure just
158 so long as there is enough room. The minimum width needed is specified as:
159
160 clear="40 en" move down until there is at least 40 en units free
161 clear="100 pixels" move down until there is at least 100 pixels free
162
163 The style sheet (or browser defaults) may provide default minimum widths for
164 each class of block-like elements.
165 -->
166
167 <!ENTITY % needs -- Attributes for controlling text flow. Used in headers
168 and other elements to guarantee sufficient room --
169 'clear CDATA #IMPLIED'>
170
171 <!--
172 The following attribute may be included where ever a URL can be given:
173
174 md message digest e.g. md="md5:jV2OfH+nnXHU8bnkPAad/mSQlTDZ"
175 where the digest is base64 encoded and preceded by a prefix
176 denoting the algorithm (in this case MD5).
177 -->
178
179 <!ENTITY % url.link -- Attributes associated with URL based links --
180 "md CDATA #IMPLIED -- message digest for linked object --">
181
182 <!--================ Character mnemonic entities ==========================-->
183
184 <!-- The HTML list of Latin-1 entities includes the full range
185 of characters in widely available Latin-1 fonts, and as such
186 is a mixture of ISOlat1 and other ISO publishing symbols -->
187
188 <!ENTITY % HTMLlat1 PUBLIC
189 "-//IETF//ENTITIES Added Latin 1 for HTML//EN">
190 %HTMLlat1;
191
192 <!--================ Entities for special symbols =========================-->
193
194 <!ENTITY emsp SDATA "[emsp ]" -- em space -->
195 <!ENTITY ensp SDATA "[ensp ]" -- en space (1/2-em) -->
196 <!ENTITY mdash SDATA "[ndash ]" -- em dash -->
197 <!ENTITY ndash SDATA "[ndash ]" -- en dash (1/2-em) -->
198 <!ENTITY nbsp SDATA "[nbsp ]" -- non breaking space -->
199 <!ENTITY shy SDATA "[shy ]" -- soft hyphen -->
200 <!ENTITY copy SDATA "[copy ]" -- copyright sign -->
201 <!ENTITY trade SDATA "[trade ]" -- trade mark sign -->
202 <!ENTITY reg SDATA "[reg ]" -- registered sign -->
203
204 <!--================ Entities for standard icons ==========================-->
205
206 <!-- a range of standard icons such as &folder; for use
207 in speeding up display of directory listings etc. -->
208
209 <!ENTITY % HTMLicons PUBLIC
210 "-//IETF//ENTITIES icons for HTML//EN">
211 %HTMLicons;
212
213 <!--================ Entities for math symbols ============================-->
214
215 <!-- ISO subset chosen for use with the widely available Adobe math font -->
216
217 <!ENTITY % HTMLmath PUBLIC
218 "-//IETF//ENTITIES Math and Greek for HTML//EN">
219 %HTMLmath;
220
221 <!--=================== Text Markup =======================================-->
222
223 <!ENTITY % font " U | S | TT | I | BIG | SMALL">
224
225 <!ENTITY % phrase "EM | STRONG | CODE | SAMP | KBD | VAR | CITE">
226
227 <!ENTITY % misc "Q | LANG | AU | DFN | PERSON | ACRONYM | ABBREV | INS | DEL">
228
229 <!ENTITY % special "TAB | MATH | A | IMG | BR">
230
231 <!ENTITY % notmath "%font | %phrase | %special | %misc">
232
233 <!ENTITY % text "#PCDATA | SUB | SUP | B | %notmath">
234
235
236 <!ENTITY % pre.exclusion "TAB|MATH|IMG|BIG|SMALL|SUB|SUP">
237
238 <!ELEMENT (%font|B|%phrase|%misc) - - (%text)+>
239 <!ATTLIST (%font|B|%phrase|%misc) %attrs;>
240
241 <!-- Subscripts and superscripts. The ALIGN attribute is only used for math -->
242
243 <!ELEMENT (SUB|SUP) - - (%text)+>
244 <!ATTLIST (SUB|SUP)
245 %attrs;
246 align (left|center|right) #IMPLIED
247 >
248
249 <!-- Forced line break -->
250
251 <!ELEMENT BR - O EMPTY>
252 <!ATTLIST BR
253 %attrs;
254 %needs; -- for control of text flow --
255 >
256
257 <!-- Named left, center and right tab stops (independent of '\t' char) -->
258
259 <!ELEMENT TAB - O EMPTY>
260 <!ATTLIST TAB
261 id ID #IMPLIED -- defines named tab stop --
262 indent NUMBER 0 -- en units before new tab stop --
263 to IDREF #IMPLIED -- jump to named tab stop --
264 align (left|center|right|decimal) left
265 dp CDATA #IMPLIED -- decimal point e.g. dp="," --
266 >
267
268 <!--================== Link Markup ========================================-->
269
270 <!--
271 With HTML 3.0 you can use ID attributes on most elements for named
272 link ends. The use of the NAME attribute on anchors is deprecated.
273
274 Do we want to support arbitrary elements for link starts? This would
275 involve adding HREF and related attributes to most elements.
276 -->
277
278 <![ %HTML.Deprecated [
279 <!ENTITY % linkName "name CDATA #IMPLIED -- named link end --">
280 ]]>
281
282 <!ENTITY % linkName "">
283
284
285 <!ENTITY % ToolBar "home|toc|index|glossary|copyright|
286 up|previous|next|help|bookmark"
287
288 -- LINK RELationship values which are used to create toolbar
289 buttons or menu items for navigation, where toc stands
290 for table of contents and bookmark provides for an open
291 ended set of links, i.e. you can use multiple bookmarks
292 for key entry points. Use the optional TITLE attribute
293 to override default names.
294 -->
295
296 <!ENTITY % linkType "NAME"
297 -- A definitive list will be specified at a later date.
298
299 They are used
300
301 a) by stylesheets to control how collections of
302 html nodes are rendered into printed documents
303
304 b) for document specific toolbars/menus when used
305 with the LINK element in document head:
306
307 "home|toc|index|glossary|copyright|
308 up|previous|next|help|bookmark"
309
310 where toc stands for table of contents and
311 bookmark provides for an open ended set of links,
312 i.e. you can use several bookmarks for key entry
313 points. Use the optional TITLE attribute to
314 override default names.
315
316 c) for hypertext paths or guided tours,
317 with REL=NODE and REL=PATH.
318
319 d) to make a link to a style sheet, e.g. rel=stylesheet
320 (used only with the LINK element).
321
322 e) to make a link to a separate banner, e.g. rel=banner
323 (used only with the LINK element).
324 -->
325
326
327 <!ENTITY % linkExtraAttributes -- URN moved to %url.link --
328 "rel %linkType #IMPLIED -- forward relationship type --
329 rev %linkType #IMPLIED -- reversed relationship type
330 to referent data --
331 title CDATA #IMPLIED -- advisory only --
332 methods NAMES #IMPLIED -- supported public methods of the object:
333 TEXTSEARCH, GET, HEAD, ... --
334 ">
335
336 <![ %HTML.Deprecated [
337 <!ENTITY % A.content "(%heading|%text)+">
338 ]]>
339
340 <!ENTITY % A.content "(%text)+">
341
342 <!ELEMENT A - - %A.content -(A)>
343
344 <!ATTLIST A
345 %attrs;
346 href %URI; #IMPLIED
347 %url.link; -- standard link attributes --
348 %linkName; -- name attribute is deprecated; use ID instead --
349 shape %SHAPE; #IMPLIED -- for shaped hotzones in FIGs --
350 %linkExtraAttributes;
351 >
352
353 <!--=================== Images ============================================-->
354
355 <!-- Desired widths are used for negotiating image size
356 with the module responsible for painting the image.
357 align=left or right cause image to float to margin
358 and for subsequent text to wrap around image -->
359
360 <!ELEMENT IMG - O EMPTY -- Embedded image -->
361 <!ATTLIST IMG
362 %attrs;
363 src %URI; #REQUIRED -- URI of image to embed --
364 %url.link; -- standard link attributes --
365 alt CDATA #IMPLIED -- for display in place of image --
366 align (top|middle|bottom|left|right) top -- relative to baseline
367 -- width NUMBER #IMPLIED -- desired width in en's or pixels --
368 height NUMBER #IMPLIED -- desired height in en's or pixels --
369 units (en|pixels) pixels -- units for width and height --
370 ismap (ismap) #IMPLIED -- pass clicks to server --
371 >
372
373 <!--=================== Paragraphs=========================================-->
374
375 <!ELEMENT P - O (%text)+>
376 <!ATTLIST P
377 %attrs;
378 align (left|center|right|justify) #IMPLIED
379 %needs; -- for control of text flow --
380 nowrap (nowrap) #IMPLIED -- disable wordwrap --
381 >
382
383 <!--=================== Headings, Titles, Sections ========================-->
384
385 <!ELEMENT HR - O EMPTY -- customizable horizontal rule -->
386 <!ATTLIST HR
387 %attrs;
388 src %URI; #IMPLIED -- URI of custom rule graphic --
389 %url.link; -- standard link attributes --
390 %needs; -- for control of text flow --
391 >
392
393 <!--
394 Headers can be numbered, although this is a matter for style sheets.
395 The style sheet controls the numbering style:
396
397 a) whether the parent numbering is inherited, e.g. 5.i.c
398 where 5 is the current sequence number for H1 headers, and
399 1 is the number for H2 headers and 3 for H3 headers.
400
401 b) what style is used for current sequence number
402 e.g. arabic, upperalpha, loweralpha, upperroman, lowerroman
403 or a numbering scheme appropriate for the current language
404
405 The skip attribute is used to skip over sequence numbers for items
406 which have been left out of the list, e.g. skip=3 advances the
407 sequence number past 3 omitted items. The seqnum sets the sequence
408 number to a specified value. Note that the style sheet may take
409 advantage of the sequence number for higher level headers.
410
411 The dingbat or src attributes may be used to specify a bullet like
412 image to be placed adjacent to the header. Defining this in the
413 header element simplifies the document markup and avoids the need
414 to use the clear or needs attribute in the following element to
415 prevent it flowing around this image.
416 -->
417
418 <!ELEMENT ( %heading ) - - (%text;)+>
419 <!ATTLIST ( %heading )
420 %attrs;
421 align (left|center|right|justify) #IMPLIED
422 %needs; -- for control of text flow --
423 seqnum NUMBER #IMPLIED -- starting sequence number --
424 skip NUMBER 0 -- skip seq nums for missing items --
425 dingbat ENTITY #IMPLIED -- dingbat entity from HTMLicons --
426 src (%URI;) #IMPLIED -- bullet defined by graphic --
427 %url.link; -- standard link attributes --
428 nowrap (nowrap) #IMPLIED -- disable wordwrap --
429 >
430
431 <!ELEMENT TITLE - - (#PCDATA)
432 -- The TITLE element is not considered part of the flow of text.
433 It should be displayed, for example as the page header or
434 window title.
435 -->
436
437 <!--=================== Text Flows ========================================-->
438
439 <!ENTITY % block
440 "P | %list | DL
441 | %preformatted
442 | %blockquote
443 | FORM | ISINDEX | FN
444 | TABLE | FIG | NOTE">
445
446 <!--
447 ((%block)* | (%text)*) would be much nicer as it would avoid the need
448 for a <P> tag when all you want is a few words of text. The problem
449 is that it also prevents: "<LI> <P>some text" since it forbids PCDATA
450 and hence the white space between the <LI> and the <P>.
451 -->
452
453 <![ %HTML.Recommended [
454 <!ENTITY % flow "(%block)*">
455 ]]>
456
457 <!ENTITY % flow "(%text | %block)*">
458
459 <!ELEMENT PRE - - (%text)* -(%pre.exclusion)>
460
461 <!ATTLIST PRE
462 %attrs;
463 width NUMBER #implied
464 %needs; -- for control of text flow --
465 >
466
467 <![ %HTML.Obsoleted [
468
469 <!ENTITY % literal "CDATA"
470 -- special non-conforming parsing mode where
471 the only markup signal is the end tag
472 in full. This will cause problems for
473 standard SGML tools!
474 -->
475
476 <!ELEMENT XMP - - %literal>
477 <!ELEMENT LISTING - - %literal>
478 <!ELEMENT PLAINTEXT - O %literal>
479
480 ]]>
481
482 <!--=================== Lists =============================================-->
483
484 <!ELEMENT DL - - (LH?, (DT|DD)+) -- this is perhaps too lax? -->
485 <!ATTLIST DL
486 %attrs;
487 %needs; -- for control of text flow --
488 compact (compact) #IMPLIED -- more compact style --
489 >
490
491 <!ELEMENT DT - O (%text)+>
492 <!ELEMENT DD - O %flow;>
493 <!ATTLIST (DT|DD)
494 %attrs;
495 %needs; -- for control of text flow --
496 >
497
498
499 <!ELEMENT (OL|UL) - - (LH?, LI+) -- should we allow a list header ? -->
500
501 <!-- style sheet controls numbering style
502 a) whether the parent numbering is inherited, e.g. 5.1.c
503 b) what style is used for current sequence number
504 e.g. arabic, upperalpha, loweralpha, upperroman, lowerroman
505 or a numbering scheme for the current language
506 -->
507 <!ATTLIST OL
508 %attrs;
509 %needs; -- for control of text flow --
510 continue (continue) #IMPLIED -- don't restart sequence number --
511 seqnum NUMBER #IMPLIED -- starting sequence number --
512 compact (compact) #IMPLIED -- reduced interitem spacing --
513 >
514
515 <!-- Unordered lists:
516
517 o single or multicolumn with
518 horizontal or vertical wrapping
519
520 o plain or bulletted list items
521
522 o bullets can be customised via:
523 - entities (dingbats in HTMLicons)
524 - external graphic via URL
525 - individual attributes on LI tags
526 -->
527 <!ATTLIST UL
528 %attrs;
529 %needs; -- for control of text flow --
530 wrap (vert|horiz|none) none -- multicolumn list style --
531 plain (plain) #IMPLIED -- suppress bullets --
532 dingbat ENTITY #IMPLIED -- dingbat entity from HTMLicons --
533 src (%URI;) #IMPLIED -- bullet defined by graphic --
534 %url.link; -- standard link attributes --
535 compact (compact) #IMPLIED -- reduced interitem spacing --
536 >
537
538 <!ELEMENT LH - O (%text;)+ -- list header -->
539 <!ATTLIST LH %attrs;>
540
541 <!--
542 For unordered lists, you can override the standard bullet with
543 a custom graphic specified via a URI e.g. src="splash.gif" or
544 a reference to one of the HTMLicons graphics e.g. dingbat=folder
545
546 The skip attribute is used with ordered lists to skip over sequence
547 numbers for items which have been left out of the list, e.g. skip=3
548 advances the sequence number past 3 omitted items.
549 -->
550
551 <!ELEMENT LI - O %flow; -- list item -->
552 <!ATTLIST LI
553 %attrs;
554 %needs; -- for control of text flow --
555 dingbat ENTITY #IMPLIED -- dingbat entity from HTMLicons --
556 src (%URI;) #IMPLIED -- custom bullet graphic --
557 %url.link; -- standard link attributes --
558 skip NUMBER 0 -- skip seq nums for missing items --
559 >
560
561 <!-- DIR and MENU are now subsumed by UL with type=plain. Use the
562 wrap attribute to control wrapping style for multicolumn lists -->
563
564 <![ %HTML.Deprecated [
565 <!ELEMENT (DIR|MENU) - - (LI)+ -(%block)>
566 <!ATTLIST (DIR|MENU)
567 compact (compact) #IMPLIED>
568 ]]>
569
570 <!--=================== Document Body =====================================-->
571
572 <![ %HTML.Recommended [
573 <!ENTITY % body.content "(DIV|%heading|%block|HR|ADDRESS|APP)*"
574 -- <h1>Heading</h1>
575 <p>Text ...
576 is preferred to
577 <h1>Heading</h1>
578 Text ...
579 -->
580 ]]>
581
582 <!ENTITY % body.content "(DIV | %heading | %text | %block | HR | ADDRESS | APP)*">
583
584 <!ELEMENT BODY O O (BANNER?, BODYTEXT) +(SPOT)>
585 <!ATTLIST BODY
586 %attrs;
587 background %URI; #IMPLIED -- texture tile for document background --
588 >
589
590 <!ELEMENT BODYTEXT O O %body.content -- dummy element -->
591
592 <!--
593 The BANNER element is used for a banner section which appears at
594 the top of the window and doesn't scroll with window contents.
595 This can be used for corporate logos, copyright statements and
596 disclaimers, as well as customized navigation/search controls.
597 -->
598 <!ELEMENT BANNER - - %body.content>
599 <!ATTLIST BANNER %attrs; >
600
601 <!-- SPOT is used to insert IDs at arbitrary places
602 e.g. for end points of a marked range (see RANGE) -->
603 <!ELEMENT SPOT - O EMPTY>
604 <!ATTLIST SPOT id ID #REQUIRED>
605
606 <!ELEMENT (%blockquote) - - (BODYTEXT, CREDIT?)>
607 <!ATTLIST (%blockquote)
608 %attrs;
609 %needs; -- for control of text flow --
610 nowrap (nowrap) #IMPLIED -- disable wordwrap --
611 >
612
613 <!ENTITY % address.content "((%text;)* | P*)">
614
615 <!ELEMENT ADDRESS - - %address.content>
616 <!ATTLIST ADDRESS
617 %attrs;
618 %needs; -- for control of text flow --
619 >
620
621 <!ELEMENT APP - O EMPTY>
622 <!ATTLIST APP
623 class CDATA #REQUIRED
624 src %URI; #IMPLIED
625 align (bottom|top|middle) #IMPLIED
626 width NUMBER #IMPLIED
627 height NUMBER #IMPLIED
628 >
629
630 <!--
631 DIV can be used with the CLASS attribute to represent different
632 kinds of container, e.g. chapter, section, abstract, appendix.
633 -->
634
635 <!ELEMENT DIV - - %body.content>
636 <!ATTLIST DIV
637 %attrs;
638 %needs; -- for control of text flow --
639 align (left|center|right) left -- alignment of following text --
640 nowrap (nowrap) #IMPLIED -- disable wordwrap --
641 >
642
643 <!--================ Forms ===============================================-->
644
645 <!--
646 As HTML 2.0 plus a few extensions:
647
648 a) A RANGE control which varies between pair of values
649 specified with the size attribute, e.g. SIZE="1, 10"
650
651 b) FILE widget for uploading one or more files to a server
652
653 c) SCRIBBLE on image widget that sends the "ink" to the server
654
655 d) SUBMIT/RESET buttons can now be customised with an image.
656 This subsumes the IMAGE type which is now deprecated.
657
658 e) Graphical SELECTion menus are now supported, using
659 the new SHAPE attribute on OPTION elements.
660
661 Further extensions are in the pipeline (e.g. table entry,
662 multiple data formats for textarea fields and client-side
663 scripts with custom widgets) but will have to wait until
664 the backlog of implementation work diminishes.
665 -->
666
667 <!ELEMENT FORM - - %body.content -(FORM) +(INPUT|SELECT|TEXTAREA)>
668 <!ATTLIST FORM
669 action %URI #REQUIRED -- server-side form handler --
670 method (%HTTP-Method) GET -- see HTTP specification --
671 enctype %Content-Type; "application/x-www-form-urlencoded"
672 script %URI #IMPLIED -- link to client-side script --
673 >
674
675 <![ %HTML.Deprecated [
676 <!ENTITY % InputType "(TEXT | PASSWORD | CHECKBOX | RADIO | SUBMIT
677 | RESET | RANGE | FILE | SCRIBBLE | HIDDEN | IMAGE)">
678 ]]>
679
680 <!ENTITY % InputType "(TEXT | PASSWORD | CHECKBOX | RADIO | SUBMIT
681 | RESET | RANGE | FILE | SCRIBBLE | HIDDEN)">
682
683 <!ELEMENT INPUT - O EMPTY>
684 <!ATTLIST INPUT
685 %attrs;
686 type %InputType TEXT
687 name NAME #IMPLIED -- required for all but submit and reset --
688 value CDATA #IMPLIED -- required for radio buttons & checkboxes --
689 disabled (disabled) #IMPLIED -- read-only fields --
690 error CDATA #IMPLIED -- why field is in error --
691 checked (checked) #IMPLIED -- for radio buttons and check boxes --
692 size NUMBER #IMPLIED -- visible width of TEXT fields --
693 maxlength NUMBER #IMPLIED -- max number of chars for TEXT fields --
694 min %REAL #IMPLIED -- lower limit for RANGE fields --
695 max %REAL #IMPLIED -- upper limit for RANGE fields --
696 accept CDATA #IMPLIED -- list of MIME types for file fields --
697 src %URI #IMPLIED -- for fields with background images --
698 %url.link; -- standard link attributes --
699 align (top|middle|bottom|left|right) top
700 >
701
702 <!--
703 SRC attribute added for graphical selection menus
704 The WIDTH, HEIGHT and UNITS attributes apply to the
705 image specified by the SRC attribute.
706 -->
707
708 <!ELEMENT SELECT - - (OPTION+) -(INPUT|TEXTAREA|SELECT)>
709 <!ATTLIST SELECT
710 %attrs;
711 name CDATA #REQUIRED
712 multiple (multiple) #IMPLIED
713 disabled (disabled) #IMPLIED -- read-only menu --
714 error CDATA #IMPLIED -- why selections are in error --
715 src %URI #IMPLIED -- for graphical selection menus --
716 %url.link; -- standard link attributes --
717 width NUMBER #IMPLIED -- desired width of in en's or pixels --
718 height NUMBER #IMPLIED -- desired height in en's or pixels --
719 units (en|pixels) pixels -- units for width and height --
720 align (top|middle|bottom|left|right) top
721 >
722
723 <!ELEMENT OPTION - O (#PCDATA)>
724 <!ATTLIST OPTION
725 %attrs;
726 selected (selected) #IMPLIED
727 value CDATA #IMPLIED -- default to element content --
728 shape %SHAPE; #IMPLIED -- for graphical selection menus --
729 disabled (disabled) #IMPLIED -- unselectable option --
730 error CDATA #IMPLIED -- why this choice is in error --
731 >
732
733 <!--
734 Multi-line text input field. align=left or right
735 causes the field to float to margin and for
736 subsequent text to wrap around the field.
737 -->
738
739 <!ELEMENT TEXTAREA - - (#PCDATA) -(INPUT|TEXTAREA|SELECT)>
740 <!ATTLIST TEXTAREA
741 %attrs;
742 name CDATA #REQUIRED
743 rows NUMBER #REQUIRED
744 cols NUMBER #REQUIRED
745 disabled (disabled) #IMPLIED -- read-only field --
746 error CDATA #IMPLIED -- why field is in error --
747 align (top|middle|bottom|left|right) top
748 >
749
750 <!--======================= Captions ======================================-->
751
752 <!ELEMENT CAPTION - - (%text;)+ -- table or figure caption -->
753 <!ATTLIST CAPTION
754 %attrs;
755 align (top|bottom|left|right) #IMPLIED
756 >
757 <!--======================= Tables ========================================-->
758
759 <!--
760 Tables and figures can be aligned in several ways:
761
762 bleedleft flush left with the left (window) border
763 left flush left with the left text margin
764 center centered (text flow is disabled for this mode)
765 right flush right with the right text margin
766 bleedright flush right with the right (window) border
767 justify when applicable the table/figure should stretch
768 to fill space between the text margins
769
770 Note: text will flow around the table or figure if the browser
771 judges there is enough room and the alignment is not centered
772 or justified. The table or figure may itself be part of the
773 text flow around some earlier figure. You can in this case use
774 the clear or needs attributes to move the new table or figure
775 down the page beyond the obstructing earlier figure. Similarly,
776 you can use the clear or needs attributes with other elements
777 such as headers and lists to move them further down the page.
778 -->
779
780 <!ENTITY % block.align
781 "align (bleedleft|left|center|right|bleedright|justify) center">
782
783 <!--
784 The HTML 3.0 table model has been chosen for its simplicity
785 and the ease in writing filters from common DTP packages.
786
787 By default the table is automatically sized according to the
788 cell contents and the current window size. Specifying the columns
789 widths using the colspec attribute allows browsers to start
790 displaying the table without having to wait for last row.
791
792 The colspec attribute is a list of column widths and alignment
793 specifications. The columns are listed from left to right with
794 a capital letter followed by a number, e.g. COLSPEC="L20 C8 L40".
795 The letter is L for left, C for center, R for right alignment of
796 cell contents. J is for justification, when feasible, otherwise
797 this is treated in the same way as L for left alignment.
798 Column entries are delimited by one or more space characters.
799
800 The number specifies the width in en's, pixels or as a
801 fractional value of the table width, as according to the
802 associated units attribute. This approach is more compact
803 than used with most SGML table models and chosen to simplify
804 hand entry. The width attribute allows you to specify the
805 width of the table in pixels, en units or as a percentage
806 of the space between the current left and right margins.
807
808 To assist with rendering to speech, row and column headers
809 can be given short names using the AXIS attribute. The AXES
810 attribute is used to explicitly specify the row and column
811 names for use with each cell. Otherwise browsers can follow
812 up columns and left along rows (right for some languages)
813 to find the corresponding header cells.
814
815 Table content model: Braille limits the width of tables,
816 placing severe limits on column widths. User agents need
817 to render big cells by moving the content to a note placed
818 before the table. The cell is then rendered as a link to
819 the corresponding note.
820
821 To assist with formatting tables to paged media, authors
822 can differentiate leading and trailing rows that are to
823 be duplicated when splitting tables across page boundaries.
824 The recommended way is to subclass rows with the CLASS attribute
825 For example: <TR CLASS=Header>, <TR CLASS=Footer> are used for
826 header and footer rows. Paged browsers insert footer rows at
827 the bottom of the current page and header rows at the top of
828 the new page, followed by the remaining body rows.
829 -->
830
831 <!ELEMENT TABLE - - (CAPTION?, TR*) -- mixed headers and data -->
832 <!ATTLIST TABLE
833 %attrs;
834 %needs; -- for control of text flow --
835 border (border) #IMPLIED -- draw borders --
836 colspec CDATA #IMPLIED -- column widths and alignment --
837 units (en|pixels|relative) en -- units for column widths --
838 dp CDATA #IMPLIED -- decimal point e.g. dp="," --
839 width NUMBER #IMPLIED -- absolute or percentage width --
840 %block.align; -- horizontal alignment --
841 noflow (noflow) #IMPLIED -- noflow around table --
842 nowrap (nowrap) #IMPLIED -- don't wrap words --
843 >
844
845 <!ENTITY % cell "TH | TD">
846 <!ENTITY % horiz.align "left|center|right|justify">
847 <!ENTITY % vert.align "top|middle|bottom|baseline">
848
849 <!--
850 Browsers should tolerate an omission of the first <TR>
851 tag as it is implied by the context. Missing trailing
852 <TR>s implied by rowspans should be ignored.
853
854 The alignment attributes act as defaults for rows
855 overriding the colspec attribute and being in turn
856 overridden by alignment attributes on cell elements.
857 Use valign=baseline when you want to ensure that text
858 in different cells on the same row is aligned on the
859 same baseline regardless of fonts. It only applies
860 when the cells contain a single line of text.
861 -->
862
863 <!ELEMENT TR - O (%cell)* -- row container -->
864 <!ATTLIST TR
865 %attrs;
866 align (%horiz.align) #IMPLIED -- horizontal alignment --
867 valign (%vert.align) top -- vertical alignment --
868 dp CDATA #IMPLIED -- decimal point e.g. dp="," --
869 nowrap (nowrap) #IMPLIED -- don't wrap words --
870 >
871
872 <!--
873 Note that table cells can include nested tables.
874 Missing cells are considered to be empty, while
875 missing rows should be ignored, i.e. if a cell
876 spans a row and there are no further TR elements
877 then the implied row should be ignored.
878 -->
879
880 <!ELEMENT (%cell) - O %body.content>
881 <!ATTLIST (%cell)
882 %attrs;
883 colspan NUMBER 1 -- columns spanned --
884 rowspan NUMBER 1 -- rows spanned --
885 align (%horiz.align) #IMPLIED -- horizontal alignment --
886 valign (%vert.align) top -- vertical alignment --
887 dp CDATA #IMPLIED -- decimal point e.g. dp="," --
888 nowrap (nowrap) #IMPLIED -- don't wrap words --
889 axis CDATA #IMPLIED -- axis name, defaults to element content --
890 axes CDATA #IMPLIED -- comma separated list of axis names --
891 >
892
893 <!--====================== Figures ========================================-->
894
895 <!--
896 The element contains text for use in non-graphical displays. Note that
897 you can use the shape attribute in anchors to specify hotzones on images.
898 This provides for local processing of pointer clicks and a unified method
899 for dealing with graphical and non-graphical displays.
900
901 Text is flowed around figures when the figure is left or right aligned.
902 You can request the browser to move down until there is enough room for
903 the next element, see the CLEAR and NEED attributes (in %needs)
904
905 Figures offer a path towards embedding arbitrary information formats
906 via some kind of OLE/OpenDoc mechanism.
907 -->
908
909 <!ELEMENT FIG - - (OVERLAY*, CAPTION?, FIGTEXT, CREDIT?) -(FIG|IMG)>
910 <!ATTLIST FIG
911 %attrs;
912 %needs; -- for control of text flow --
913 src %URI; #REQUIRED -- URI of document to embed --
914 %url.link; -- standard link attributes --
915 %block.align; -- horizontal alignment --
916 noflow (noflow) #IMPLIED -- noflow around figure --
917 width NUMBER #IMPLIED -- desired width in units --
918 height NUMBER #IMPLIED -- desired height in units --
919 units (en|pixels) pixels -- specifies units as en's or pixels --
920 imagemap (%URI) #IMPLIED -- pass background clicks to server --
921 >
922
923 <!ELEMENT FIGTEXT O O %body.content -- dummy element -->
924
925 <!--
926 Figure overlays. When combined with local caching, overlays
927 provide a cheap way of modifying a larger base image sent as
928 part of a previous page.
929 -->
930
931 <!ELEMENT OVERLAY - O EMPTY -- image overlay -->
932 <!ATTLIST OVERLAY
933 src %URI; #REQUIRED -- URI of image overlay --
934 %url.link; -- standard link attributes --
935 units (en|pixels) pixels -- specifies units as en's or pixels --
936 x NUMBER 0 -- offset from left in units --
937 y NUMBER 0 -- offset from top in units --
938 width NUMBER #IMPLIED -- desired width in units --
939 height NUMBER #IMPLIED -- desired height in units --
940 imagemap (%URI) #IMPLIED -- pass background clicks to server --
941 >
942
943 <!ELEMENT CREDIT - - (%text;)* -- source of image -->
944 <!ATTLIST CREDIT
945 %attrs;
946 >
947
948 <!--======================== Notes ========================================-->
949
950 <!--
951 The NOTE element is used for admonishments. The CLASS attribute
952 is used to differentiate NOTE's, e.g. Note, Caution or Warning.
953 -->
954
955 <!ELEMENT NOTE - - %body.content; -- admonishment -->
956 <!ATTLIST NOTE
957 %attrs;
958 src %URI; #IMPLIED -- URI of custom graphic --
959 %url.link; -- standard link attributes --
960 %needs; -- for control of text flow --
961 >
962
963 <!--======================== Footnotes ====================================-->
964
965 <!--
966 Typically rendered as popup note. These elements are referenced
967 by hypertext links specified with the anchor element.
968 -->
969 <!ELEMENT FN - - %body.content;>
970 <!ATTLIST FN %attrs;>
971
972 <!--======================== Math ========================================-->
973
974 <!-- Use &thinsp; &emsp; etc for greater control of spacing. -->
975
976 <!-- Subscripts and Superscripts
977
978 <SUB> and <SUP> are used for subscripts and superscripts.
979
980 i j
981 X <SUP>i</SUP>Y<SUP>j</SUP> is X Y
982
983 i.e. the space following the X disambiguates the binding.
984 The align attribute can be used for horizontal alignment,
985 e.g. to explicitly place an index above an element:
986 i
987 X<sup align=center>i</sup> produces X
988
989 Short references are defined for superscripts, subscripts and boxes
990 to save typing when manually editing HTML math, e.g.
991
992 x^2^ is mapped to x<sup>2</sup>
993 y_z_ is mapped to y<sub>z</sub>
994 {a+b} is mapped to <box>a + b</box>
995
996 Note that these only apply within the MATH element and can't be
997 used in normal text!
998 -->
999 <!ENTITY REF1 STARTTAG "SUP">
1000 <!ENTITY REF2 ENDTAG "SUP">
1001 <!ENTITY REF3 STARTTAG "SUB">
1002 <!ENTITY REF4 ENDTAG "SUB">
1003 <!ENTITY REF5 STARTTAG "BOX">
1004 <!ENTITY REF6 ENDTAG "BOX">
1005
1006 <!USEMAP MAP1 MATH>
1007 <!USEMAP MAP2 SUP>
1008 <!USEMAP MAP3 SUB>
1009 <!USEMAP MAP4 BOX>
1010
1011 <!SHORTREF MAP1 "^" REF1
1012 "_" REF3
1013 "{" REF5 >
1014
1015 <!SHORTREF MAP2 "^" REF2
1016 "_" REF3
1017 "{" REF5 >
1018
1019 <!SHORTREF MAP3 "_" REF4
1020 "^" REF1
1021 "{" REF5 >
1022
1023 <!SHORTREF MAP4 "}" REF6
1024 "^" REF1
1025 "_" REF3
1026 "{" REF5 >
1027
1028 <!--
1029 The inclusion of %math and exclusion of %notmath is used here
1030 to alter the content model for the B, SUB and SUP elements,
1031 to limit them to formulae rather than general text elements.
1032 -->
1033
1034 <!ENTITY % mathvec "VEC|BAR|DOT|DDOT|HAT|TILDE" -- common accents -->
1035 <!ENTITY % mathface "B|T|BT" -- control of font face -->
1036 <!ENTITY % math "BOX|ABOVE|BELOW|%mathvec|ROOT|SQRT|ARRAY|SUB|SUP|%mathface">
1037 <!ENTITY % formula "#PCDATA|%math">
1038
1039 <!ELEMENT MATH - - (#PCDATA)* -(%notmath) +(%math)>
1040 <!ATTLIST MATH
1041 id ID #IMPLIED
1042 class NAMES #IMPLIED -- e.g. class=chem -->
1043
1044 <!-- The BOX element acts as brackets. Delimiters are optional and
1045 stretch to match the height of the box. The OVER element is used
1046 when you want a line between numerator and denominator. This line
1047 is suppressed with the alternative ATOP element. CHOOSE acts like
1048 ATOP but adds enclosing round brackets as a convenience for binomial
1049 coefficients. Note the use of { and } as shorthand for <BOX> and
1050 </BOX> respectively:
1051
1052 1 + X
1053 {1 + X<OVER>Y} is _______
1054 Y
1055
1056 a + b
1057 {a + b<ATOP>c - d} is
1058 c - d
1059
1060 The delimiters are represented using the LEFT and RIGHT
1061 elements as in:
1062
1063 {[<LEFT>x + y<RIGHT>]} is [ x + y ]
1064 {(<LEFT>a<RIGHT>]} is (a]
1065 {||<LEFT>a<RIGHT>||} is || a ||
1066
1067 Use &lbrace; and &rbrace; for "{" and "}" respectively as
1068 these symbols are used as shorthand for BOX, e.g.
1069
1070 {&lbrace;<LEFT>a+b<RIGHT>&rbrace;} is {a+b}
1071
1072 You can stretch definite integrals to match the integrand, e.g.
1073
1074 {&int;<SUB>a</SUB><SUP>b</SUP><LEFT>{f(x)<over>1+x} dx}
1075
1076 b
1077 / f(x)
1078 | ----- dx
1079 / 1 + x
1080 a
1081
1082 Note the complex content model for BOX is a work around
1083 for the absence of support for infix operators in SGML.
1084
1085 You can get oversize delimiters with the SIZE attribute,
1086 for example <BOX SIZE=large>(<LEFT>...<RIGHT>)</BOX>
1087
1088 Note that the names of common functions are recognized
1089 by the parser without the need to use "&" and ";" around
1090 them, e.g. int, sum, sin, cos, tan, ...
1091 -->
1092
1093 <!ELEMENT BOX - - ((%formula)*, (LEFT, (%formula)*)?,
1094 ((OVER|ATOP|CHOOSE), (%formula)*)?,
1095 (RIGHT, (%formula)*)?)>
1096 <!ATTLIST BOX
1097 size (normal|medium|large|huge) normal -- oversize delims -->
1098
1099 <!ELEMENT (OVER|ATOP|CHOOSE|LEFT|RIGHT) - O EMPTY>
1100
1101 <!-- Horizontal line drawn ABOVE contents
1102 The symbol attribute allows authors to supply
1103 an entity name for an accent, arrow symbol etc.
1104 Generalisation of LaTeX's overline command.
1105
1106 e.g. <above sym=ssmile>x</above>
1107 places an upwardly turning curve above the "x"
1108 -->
1109
1110 <!ELEMENT ABOVE - - (%formula)+>
1111 <!ATTLIST ABOVE sym ENTITY #IMPLIED>
1112
1113 <!-- Horizontal line drawn BELOW contents
1114 The symbol attribute allows authors to
1115 supply an entity name for an arrow symbol etc.
1116 Generalisation of LaTeX's underline command.
1117 -->
1118
1119 <!ELEMENT BELOW - - (%formula)+>
1120 <!ATTLIST BELOW sym ENTITY #IMPLIED>
1121
1122 <!-- Convenience tags for common accents:
1123 vec, bar, dot, ddot, hat and tilde
1124 -->
1125
1126 <!ELEMENT (%mathvec) - - (%formula)+>
1127
1128 <!--
1129 T and BT are used to designate terms which should
1130 be rendered in an upright font (& bold face for BT)
1131 -->
1132
1133 <!ELEMENT (T|BT) - - (%formula)+>
1134 <!ATTLIST (T|BT) class NAMES #IMPLIED>
1135
1136 <!-- Roots e.g. <ROOT>3<OF>1+x</ROOT> -->
1137
1138 <!ELEMENT ROOT - - ((%formula)+, OF, (%formula)+)>
1139 <!ELEMENT OF - O (%formula)* -- what the root applies to -->
1140
1141 <!ELEMENT SQRT - - (%formula)* -- square root convenience tag -->
1142
1143 <!-- LaTeX like arrays. The COLDEF attribute specifies
1144 a single capital letter for each column determining
1145 how the column should be aligned, e.g. coldef="CCC"
1146
1147 "L" left
1148 "C" center
1149 "R" right
1150
1151 An optional separator letter can occur between columns
1152 and should be one of + - or =, e.g. "C+C+C+C=C".
1153 Whitespace within coldef is ignored. By default, the
1154 columns are all centered.
1155
1156 The ALIGN attribute alters the vertical position of the
1157 array as compared with preceding and following expressions.
1158
1159 Use LDELIM and RDELIM attributes for delimiter entities.
1160 When the LABELS attribute is present, the array is
1161 displayed with the first row and the first column as
1162 labels displaced from the other elements. In this case,
1163 the first element of the first row should normally be
1164 left blank.
1165
1166 Use &vdots; &cdots; and &ddots; for vertical, horizontal
1167 and diagonal ellipsis dots. Use &dotfill; to fill an array
1168 cell with horizontal dots (e.g. for a full row).
1169 Note &ldots; places the dots on the baseline, while &cdots;
1170 places them higher up.
1171 -->
1172
1173 <!ELEMENT ARRAY - - (ROW)+>
1174 <!ATTLIST ARRAY
1175 align (top|middle|bottom) middle -- vertical alignment --
1176 coldef CDATA #IMPLIED -- column alignment and separator --
1177 ldelim CDATA #IMPLIED -- stretchy left delimiter --
1178 rdelim CDATA #IMPLIED -- stretchy right delimiter --
1179 labels (labels) #IMPLIED -- TeX's \bordermatrix style -->
1180
1181 <!ELEMENT ROW - O (ITEM)*>
1182 <!ELEMENT ITEM - O (%formula)*>
1183 <!ATTLIST ITEM
1184 align CDATA #IMPLIED -- override coldef alignment --
1185 colspan NUMBER 1 -- merge columns as per TABLE --
1186 rowspan NUMBER 1 -- merge rows as per TABLE -->
1187
1188 <!--================ Document Head ========================================-->
1189
1190 <![ %HTML.Deprecated [
1191 <!ENTITY % head.content "TITLE & ISINDEX? & BASE? & STYLE?
1192 & META* & LINK* & RANGE* & NEXTID?">
1193 ]]>
1194
1195 <!ENTITY % head.nextid "">
1196
1197 <!ENTITY % head.content "TITLE & ISINDEX? & BASE? & STYLE?
1198 & META* & LINK* & RANGE*">
1199
1200 <!ELEMENT HEAD O O (%head.content)>
1201
1202 <!ELEMENT LINK - O EMPTY>
1203 <!ATTLIST LINK
1204 href %URI #REQUIRED
1205 %linkExtraAttributes; >
1206
1207 <!ELEMENT RANGE - O EMPTY>
1208 <!ATTLIST RANGE
1209 id ID #IMPLIED -- for naming marked range --
1210 class NAMES #IMPLIED -- for subclassing --
1211 from IDREF #REQUIRED -- start of marked range --
1212 until IDREF #REQUIRED -- end of marked range --
1213 >
1214
1215 <!ELEMENT ISINDEX - O EMPTY>
1216 <!ATTLIST ISINDEX
1217 href %URI #IMPLIED -- server handling queries --
1218 prompt CDATA #IMPLIED -- prompt message -->
1219
1220 <!--
1221 The BASE element gives the base URL for
1222 dereferencing relative URLs, e.g.
1223
1224 <BASE href="http://foo.com/images">
1225 ...
1226 <IMG SRC="bar.gif">
1227
1228 The image is deferenced to
1229
1230 http://foo.com/images/bar.gif
1231 -->
1232
1233 <!ELEMENT BASE - O EMPTY>
1234 <!ATTLIST BASE
1235 id ID #IMPLIED
1236 href %URI; #REQUIRED
1237 >
1238
1239 <![ %HTML.Deprecated [
1240 <!ELEMENT NEXTID - O EMPTY>
1241 <!ATTLIST NEXTID N CDATA #REQUIRED>
1242 ]]>
1243
1244 <!ELEMENT META - O EMPTY -- Generic Metainformation -->
1245 <!ATTLIST META
1246 http-equiv NAME #IMPLIED -- HTTP response header name --
1247 name NAME #IMPLIED -- metainformation name --
1248 content CDATA #REQUIRED -- associated information --
1249 >
1250
1251 <!--
1252 A style sheet can be associated with the document using the
1253 LINK element, e.g. <LINK rel=style href="housestyle.dsssl">.
1254 Style overrides can be placed in the document head using the
1255 STYLE element, e.g.
1256
1257 <style notation=dsssl-lite>
1258 dsss-lite stuff
1259 </style>
1260
1261 Later on in the document you can use:
1262
1263 <h2 class=bigcaps>Header with bigger than normal capitals</h2>
1264 <p class=abstract>A paragraph with a unique style of its own
1265 ...
1266
1267 Statements in the given style notation
1268
1269 The tag names, class and id attributes are used in the style sheet
1270 notation to describe how to render matching elements.
1271 -->
1272
1273 <!ENTITY % style-notations "dsssl-lite | w3c-style">
1274
1275 <!--
1276 <!NOTATION dsssl-lite PUBLIC
1277 "ISO/IEC 10179:1995//NOTATION DSSSL Style Language//EN">
1278
1279 <!NOTATION w3c-style PUBLIC "IETF/RFC nnn/W3C Style Language//EN">
1280 -->
1281
1282 <!ELEMENT STYLE - O (#PCDATA)>
1283 <!ATTLIST STYLE
1284 notation NOTATION (%style-notations;) #REQUIRED
1285 >
1286
1287 <!--================ Document Structure ===================================-->
1288
1289 <!ENTITY % html.content "HEAD, BODY">
1290
1291 <!ELEMENT HTML O O (%html.content)>
1292 <!ENTITY % version.attr 'VERSION CDATA #FIXED "%HTML.Version;"'>
1293
1294 <!-- suggested roles are: TOC, DOC, DOCPART, HITLIST, DIALOG -->
1295
1296 <!ATTLIST HTML
1297 %version.attr; -- report DTD version to application --
1298 urn CDATA #IMPLIED -- universal resource name for this document --
1299 class NAMES #IMPLIED -- role of this document, eg table of contents --
1300 >
1301
1302 <!-- The END -->