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2	Network Working Group                                        N. Brownlee
3	Internet-Draft                                The University of Auckland
4	Intended status: Informational                                       IAB
5	Expires: August 29, 2016                               February 26, 2016

7	                   SVG Drawings for RFCs: SVG 1.2 RFC
8	                          draft-iab-svg-rfc-02

10	Abstract

12	   .  Maybe the text in section This document specifies SVG 1.2 RFC - an
13	   SVG profile for use in diagrams that may appear in RFCs - and
14	   considers some of the issues concerning the creation and use of such
15	   diagrams.

17	Status of This Memo

19	   This Internet-Draft is submitted in full conformance with the
20	   provisions of BCP 78 and BCP 79.

22	   Internet-Drafts are working documents of the Internet Engineering
23	   Task Force (IETF).  Note that other groups may also distribute
24	   working documents as Internet-Drafts.  The list of current Internet-
25	   Drafts is at http://datatracker.ietf.org/drafts/current/.

27	   Internet-Drafts are draft documents valid for a maximum of six months
28	   and may be updated, replaced, or obsoleted by other documents at any
29	   time.  It is inappropriate to use Internet-Drafts as reference
30	   material or to cite them other than as "work in progress."

32	   This Internet-Draft will expire on August 29, 2016.

34	Copyright Notice

36	   Copyright (c) 2016 IETF Trust and the persons identified as the
37	   document authors.  All rights reserved.

39	   This document is subject to BCP 78 and the IETF Trust's Legal
40	   Provisions Relating to IETF Documents
41	   (http://trustee.ietf.org/license-info) in effect on the date of
42	   publication of this document.  Please review these documents
43	   carefully, as they describe your rights and restrictions with respect
44	   to this document.  Code Components extracted from this document must
45	   include Simplified BSD License text as described in Section 4.e of
46	   the Trust Legal Provisions and are provided without warranty as
47	   described in the Simplified BSD License.

49	Table of Contents

51	   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
52	   2.  SVG 1.2 RFC: An SVG profile for RFCs  . . . . . . . . . . . .   3
53	     2.1.  Elements, properties and attributes allowed in SVG 1.2
54	           RFC . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
55	   3.  How to create SVG drawings  . . . . . . . . . . . . . . . . .   6
56	   4.  Accessibility Considerations  . . . . . . . . . . . . . . . .   7
57	   5.  Examples of diagrams common in RFCs . . . . . . . . . . . . .   8
58	     5.1.  Packet Layout Diagrams  . . . . . . . . . . . . . . . . .   8
59	     5.2.  Sequence Diagrams (1) . . . . . . . . . . . . . . . . . .   8
60	     5.3.  Sequence Diagrams (2) . . . . . . . . . . . . . . . . . .   8
61	   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
62	   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8
63	   8.  Revision History [RFC Editor please delete] . . . . . . . . .   8
64	   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
65	     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
66	     9.2.  Informative References  . . . . . . . . . . . . . . . . .  11
67	   Appendix A.  RELAX NG Compact (rnc) Schema for SVG 1.2 RFC  . . .  12
68	   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  53

70	1.  Introduction

72	   Over the last few years the RFC Editor has worked with the Internet
73	   community to develop specifications for changes in the format of
74	   RFCs.  An outline of the resulting specifications was published as
75	   [RFC6949] in May 2013.  Since then a Design Team has been working
76	   with the RFC Editor to flesh out those specifications.  One aspect of
77	   the changes is to allow line drawings in RFCs; [RFC6949] says

79	      "Graphics may include ASCII art and a more complex form to be
80	      defined, such as SVG line art [SVG].  Color and grayscale will not
81	      be accepted.  RFCs must correctly display in monochromatic black-
82	      and-white to allow for monochrome displays, black-and-white
83	      printing, and support for visual disabilities."

85	   SVG (Scalable Vector Graphics) has been developed by W3C, the World
86	   Wide Web Consortium; its current standard is SVG 1.1 Full
87	   [W3C.REC-SVG11-20110816].  This document defines SVG 1.2 RFC, an SVG
88	   profile (i.e. a subset of SVG) that is suitable for RFC line
89	   drawings.

91	   Note that in RFCs, the text provides normative descriptions of
92	   protocols, systems, etc.  Diagrams may be used to help explain
93	   concepts more clearly, but they provide supporting detail, and should
94	   not be considered to be complete specifications in themselves.

96	   The details (particularly any vocabularies) described in this
97	   document are expected to change based on experience gained in
98	   implementing the RFC production center's toolset.  Revised documents
99	   will be published capturing those changes as the toolset is
100	   completed.  Other implementors must not expect those changes to
101	   remain backwards-compatible with the details described in this
102	   document.

104	2.  SVG 1.2 RFC: An SVG profile for RFCs

106	   As a starting point for SVG 1.2 RFC, the Design Team decided to use
107	   SVG 1.2 Tiny [W3C.REC-SVGTiny12-20081222].  SVG 1.2 Tiny is an SVG
108	   subset intended to be implemented on small, mobile devices such as
109	   cellphones and smartphones.  That should allow RFCs to be rendered
110	   well on such devices, especially those that have small screens.
111	   However, RFCs are self-contained documents that do not change once
112	   they are published.  The use of SVG drawings in RFCs is intended to
113	   allow authors to create drawings that are simple to produce, and
114	   easier to understand than our traditional 'ASCII Art' ones.  In
115	   short, we are also trying to improve access to the content in RFCs,
116	   so SVG drawings need to be kept as simple as possible.

118	   Appendix A (below) provides a complete RELAX NG Compact (rnc) schema
119	   for SVG 1.2 RFC.  It is derived from the SVG 1.2 schema, and is the
120	   formal definition of SVG 1.2 RFC.  The remainder of this section
121	   gives a simplified - i.e. easier to read and dunderstand - overview
122	   of SVG 1.2 RFC.

124	   SVG can provide a complete User Interface, but within RFCs, all we
125	   need are simple diagrams that do not change once the RFC is
126	   published.  Therefore, SVG RFC does not allow anything from the
127	   following sections in SVG Tiny 1.2 [W3C.REC-SVGTiny12-20081222]:

129	   12  Multimedia
130	   13  Interactivity
131	   15  Scripting
132	   16  Animation
133	   18  Metadata
134	   19  Extensibility

136	   Note that SVG Tiny 1.2 elements may have many properties or
137	   attributes that are needed to support aspects of the above sections.
138	   Those are not allowed in SVG 1.2 RFC.

140	   Considering the other sections in SVG Tiny 1.2
141	   [W3C.REC-SVGTiny12-20081222]:

143	    9 Basic Shapes

145	   10 Text
146	        Everything in these sections is allowed in SVG 1.2 RFC.

148	   11 Painting: Filling, Stroking, Colors and Paint Servers
149	        Anything relating to 'color' is not allowed in SVG 1.2 RFC,
150	        everything else is allowed.  This is a requirement documented in
151	        [RFC6949].

153	   14 Linking
154	        SVG Tiny 1.2 allows internationalized IRIs in references.  In
155	        SVG 1.2 RFC such links must be ASCII only.  That should not
156	        cause problems, since one can just use the URI form of any IRI.
157	        Authors should try to use links only to URIs that are long-term
158	        stable.

160	   17 Fonts
161	        SVG 1.2 RFC only allows 'serif', 'sans-serif' and 'monospace'
162	        generic font families from the WebFonts facility, described in
163	        CSS 2.1, [W3C.REC-CSS2-20110607], section 15, Fonts.  In
164	        particular, the SVG 'font' element is not allowed.

166	2.1.  Elements, properties and attributes allowed in SVG 1.2 RFC

168	   Elements, properties and attributes selected for SVG 1.2 RFC from
169	   [W3C.REC-SVGTiny12-20081222].

171	  In the list below, elements and properties are listed on the
172	  left,and their allowed values are given in parentheses on the
173	  right.

175	  <color> is the list of allowed colors, a black-and-white
176	          subset of the SVG color names.

178	  <style> is a set of CSS attributes that are commonly used (by SVG
179	          drawing applications).  They are not part of SVG Tiny 1.2,
180	          but are included here for compatibility.  Note that
181	          - There is no guarantee that any renderer will implement
182	            all the CSS attributes a drawing application may use.
183	          - Authors will need to consider the compatibility of their
184	            drawings with rendering devices.

186	  Elements:

188	    svg              (version=1.2, baseProfile=tiny, width, viewBox,
189	                      preserveAspectRatio, snapshotTime, height,
190	                      id, role)
191	    g                (label, class, id, role, fill, <style>, transform)
192	    defs             (id, role, fill)
193	    title            (id, role)
194	    desc             (id, role)
195	    a                (id, role, fill, transform)
196	    use              (x, y, href, xlink:href, id, role, fill, transform)

198	    rect             (x, y, width, height, rx, ry, stroke-miterlimit
199	                      id, role, fill, <style>, transform)
200	    circle           (cx, cy, r,
201	                      id, role, fill, <style>, transform)
202	    ellipse          (cx, cy, rx, ry,
203	                      id, role, fill, <style>, transform)
204	    line             (x1, y1, x2, y2,  id, role, fill, transform)
205	    polyline         (points, id, role, fill, transform)
206	    polygon          (points, id, role, fill, <style>, transform)
207	    text             (x, y, rotate, space, id, role, fill, <style>,
208	                      transform)
209	    tspan            (x, y, id, role, fill)
210	    textArea         (x, y, width, height, auto, id, role, fill,
211	                      transform)
212	    tbreak           (id, role)

214	    solidColor       (id, role, fill)
215	    linearGradient   (gradientUnits, x1, y1, x2, y2, id, role, fill)
216	    radialGradient   (gradientUnits, cx, cy, r, id, role, fill)
217	    stop             (id, role, fill)
218	    path             (d, pathLength, stroke-miterlimit,
219	                      id, role, fill, <style>, transform)

221	  Properties:  (most allow inherit as a value)

223	    <style>          (font-family, font-weight, font-style,
224	    font-variant, direction, unicode-bidi,
225	                      text-anchor, fill, fill-rule)

227	    <color>          (black, white, #000000, #ffffff, #FFFFFF)

229	    stroke           (<color>, none, currentColor)
230	    stroke-width
231	    stroke-linecap   (butt, round, square)
232	    stroke-linejoin  (miter, round, bevel)
233	    stroke-mitrelimit
234	    stroke-dasharray
235	    stroke-dashoffset
236	    stroke-opacity
237	    vector-effect    (non-scaling-stroke, none)
238	    viewport-fill    (none, currentColor)
239	    viewport-fill-opacity
240	    display          (inline, block, list-item, run-in, compact,
241	                       marker, table, inline-table, table-row-group,
242	                       table-header-group, table-footer-group,
243	                       table-row, table-column-group,
244	                       table-column, table-cell, table-caption,
245	                       none)
246	    visibility       (visible, hidden, collapse)
247	    color-rendering  (auto, optimizeSpeed, optimizeQuality)
248	    shape-rendering  (auto, optimizeSpeed, crispEdges,
249	                       geometricPrecision)
250	    text-rendering   (auto, optimizeSpeed, optimizeLegibility,
251	                       geometricPrecision)
252	    buffered-rendering  (auto, dynamic, static)

254	    opacity
255	    solid-opacity
256	    solid-color    (currentColor, <color>)
257	    color          (currentColor, <color>)
258	    stop-color     (currentColor, <color>)
259	    stop-opacity

261	    line-increment (auto)
262	    text-align     (start,end, center)
263	    display-align  (auto, before, center, after)

265	    font-size
266	    font-family    (serif, sans-serif, monospace)
267	    font-weight    (normal, bold, bolder, lighter)
268	    font-style     (normal, italic, oblique)
269	    font-variant   (normal, small-caps)
270	    direction      (ltr, rtl)
271	    unicode-bidi   (normal, embed, bidi-override)
272	    text-anchor    (start, middle, end)
273	    fill           (none, <color>)
274	    fill-rule      (nonzero, evenodd)
275	    fill-opacity

277	3.  How to create SVG drawings

279	   Many drawing packages can be used to create SVG drawings, for example
280	   Open Source packages Inkscape and Dia.  Be aware that such packages
281	   may use SVG elements or attributes that are not allowed in SVG 1.2
282	   RFC.

284	   o  For example, the 'marker' attribute is often used to place symbols
285	      such as arrowheads on lines, but 'marker' is not allowed in SVG
286	      1.2 Tiny or SVG 1.2 RFC.  In such cases one has to draw the
287	      arrowhead in another, simpler way.

289	   o  SVG clip paths are used to define a shape; objects outside that
290	      shape become invisible.  The 'clipPath' element is not allowed in
291	      SVG 1.2 Tiny or SVG 1.2 RFC.

293	   Diagrams produced with these packages may contain elements, their
294	   attributes or properties, or values of attributes or properties that
295	   are not allowed in SVG 1.2 RFC.  We will need to provide a tool to
296	   strip out anything that is not allowed in SVG 1.2 RFC, or to replace
297	   disallowed values, e.g., 'sans-serif' for 'Sans' as values for 'font-
298	   family'.  Experience with a simple test version of a tool for this
299	   has shown that such deletion and replacement can be effective for
300	   making SVG files from drawing packages conform to SVG 1.2 RFC,
301	   without visibly changing the diagrams they produce.

303	   The tool described above can also be used by Authors simply to check
304	   that their diagrams conform to SVG 1.2 RFC.  To help with this, if
305	   visible changes do occur, the tool should produce a list of non-
306	   allowed keywords and the context in which they were found.

308	   To include a diagram into an RFC, the xml2rfc (v3) tool will need to
309	   provide a way to include SVG drawings in Internet Drafts, as
310	   described in [XML2RFCv3] sections 2.5 and 2.67.

312	4.  Accessibility Considerations

314	   One of the long-term goals for RFCs is to make them more accessible,
315	   e.g. to sight-impaired readers.  For diagrams, it would be useful for
316	   authors to provide alternative forms of the diagram, so that voice-
317	   reading software could be used to 'talk through' the diagram.  Simply
318	   reading the SVG code for a complex diagram seems unlikely to work.

320	   SVG 1.2 RFC allows SVG's 'title' and 'desc' elements.  'title'
321	   provides a brief text caption for an SVG object (much like a figure
322	   caption), and 'desc' provides a longer text description of what the
323	   object actually represents.  As well, the SVG 'role' attribute can be
324	   used to indicate to a browser how an SVG object is to be interpreted.
325	   Good suggestions on how to use these elements are given in
326	   [SVG-ACCESS-TIPS].

328	   ARIA is a W3C Recommendation for using SVG to create 'Accessible Rich
329	   Internet Applications.'  A helpful introduction to ARIA is provided
330	   by [SVG-ARIA-PRIMER], while [SVG-USING-ARIA] gives examples of how to
331	   use ARIA to enhance SVG accessibility.

333	5.  Examples of diagrams common in RFCs

335	   Another way to create SVG drawings is to write programs to draw them.
336	   For example, using python and its svgwrite module is a pleasant
337	   environment (for those who like writing code); this section presents
338	   a few examples of diagrams created in this way.  Note that they are
339	   merely examples of typical diagrams from RFCs.

341	   The SVG diagrams for this section can be seen at
342	   [This-I-D-with-SVG-included] along with an html version of this draft
343	   that includes the SVG diagrams.

345	5.1.  Packet Layout Diagrams

347	   Example: Figure 3 from [RFC0793].

349	5.2.  Sequence Diagrams (1)

351	   Example: Figure 6 from [ExpTrustedProxy].

353	5.3.  Sequence Diagrams (2)

355	   Example: Figure 3 from [RFC4321].

357	6.  IANA Considerations

359	   This document does not create a new registry nor does it register any
360	   values in existing registries; no IANA action is required.

362	7.  Acknowledgements

364	   Thanks to the RSE and the Design Team members for their helpful
365	   comments and suggestions for SVG 1.2 RFC, as well as from the wider
366	   IETF community.

368	8.  Revision History [RFC Editor please delete]

370	   version -02, 25 Feb 16:
371	      Changed the example metalanguage by removing the metalanguage
372	      code.  The svg diagrams remain, as examples of diagrams that have
373	      appeared in earlier RFCs.

375	   version -01, 26 Jan 16:
376	      rnc schema changed to use Joe Hildebrand's version, github:
377	      "rename title element *reference* to svgTitle, in order to allow
378	      combination with XML2RFC schema.  Note: XML element name does not
379	      change."

381	   version -00,  6 Jan 16:
382	      Now an IAB draft, changed name to draft-iab-svg-rfc-00.

384	   version -13, 16 Oct 15:
385	      Added Informative Reference to XML2RFC v3 draft on 'how to include
386	      SVG diagrams'.
387	      Added Informative Reference to Nevil's home page for a version of
388	      this I-D with its SVG diagrams included.
389	      Added Informative References to RFC0793 and I-Ds for the example
390	      diagrams.
391	      Changed 'colour' to 'color' so as to be consistent.
392	      Fixed other typos (thanks to Dave Thaler for all these)!
393	      Removed 'grey' color from example diagrams.

395	   version -12, 24 Sep 15:
396	      Appendix A added: a complete relax-ng compact (rnc) schema for
397	      SVG-1.2-RFC.
398	      Section 2.1: Elements/attributes/properties table updated to match
399	      the schema in Appendix A.

401	   version -11, 17 Aug 15:
402	      Section 1: Fixed typo in "Details are expected to change"
403	      paragraph.

405	   version -10, 14 Aug 15:
406	      Section 1: Added "Details are expected to change" paragraph.

408	   version -09, 31 Mar 15:
409	      No changes, version number incremented to keep draft alive

411	   version -08, 29 Sep 14:
412	      Section 1: Changed comment about diagrams 'not being normative' to
413	      'not complete specifications in themselves.
414	      Section 2.1: Added SVG 1.2 Tiny 'id' attribute because most
415	      drawing packages use it in constructing drawings.
416	      Section 2.1: Added SVG 1.2 Tiny 'role' attribute so that ARIA can
417	      use it.
418	      Section 3: added comment about changes to xml2rfc required to
419	      include SVG diagrams.
420	      Section 4: Added reference to svg-aria-primer.

422	   version -07, 3 Jul 14:
423	      Expanded text about Accessibility in 'how to create SVG drawings'
424	      section into 'Accessibility Considerations section.  Added two SVG
425	      Accessibility references to support that.

427	   version -06, 26 Jun 14:

429	      Remove trailing / from URL in section 4; the html version on
430	      tools.ietf.org/html assumed the next word was part of that URL.

432	   version -05, 25 Jun 14:
433	      Improved section on 'how to create SVG drawings' By adding some
434	      text about which elements aren't allowed in SVG 1.2 RFC.
435	      Added more text describing the tool for checking, stripping out or
436	      replacing incompatible elements and attributes from an SVG file.

438	   version -04, 30 Apr 14:
439	      Fixed typos, used full references for two of the w3c refs - each
440	      had an author name using UTF8 characters.
441	      Moved the Elements and Attributes appendix up earlier to make it
442	      sub-section 2.1.
443	      Disclaimer added to the Meta-languages section.

445	   version -03, 14 Apr 14:
446	      Added two more example diagrams; a simple packet layout, and a
447	      diagram that uses lots of diagonal lines.

449	   version -02, 12 Feb 14:
450	      Added metalanguage example to make time-sequence drawings.

452	   version -01, 11 Feb 14:
453	      Allow links to 'long-term stable URIs'
454	      Link URIs must be ASCII only
455	      Need for tools to check SVG 1.2 RFC compatibility and to strip
456	      'unnecessary' attributes explicitly stated.
457	      Statement that drawings can't be normative removed; Postscript-
458	      only RFCs already exist.
459	      Added most attributes and elements to the Appendix.

461	   version -00, 29 Jan 14:
462	      Initial version, using content from Nevil's
463	      emails to the Design Team.

465	9.  References

467	9.1.  Normative References

469	   [RFC6949]  Flanagan, H. and N. Brownlee, "RFC Series Format
470	              Requirements and Future Development", RFC 6949,
471	              DOI 10.17487/RFC6949, May 2013,
472	              <http://www.rfc-editor.org/info/rfc6949>.

474	   [W3C.REC-SVGTiny12-20081222]
475	              Andersson, O., Berjon, R., Dahlstrom, E., Emmons, A.,
476	              Ferraiolo, J., Grasso, A., Hardy, V., Hayman, S., Jackson,
477	              D., Lilley, C., McCormack, C., Neumann, A., Northway, C.,
478	              Quint, A., Ramani, N., Schepers, D., and A. Shellshear,
479	              "Scalable Vector Graphics (SVG) Tiny 1.2 Specification",
480	              World Wide Web Consortium Recommendation REC-
481	              SVGTiny12-20081222, December 2008,
482	              <http://www.w3.org/TR/2008/REC-SVGTiny12-20081222>.

484	   [W3C.REC-CSS2-20110607]
485	              Bos, B., Celik, T., Hickson, I., and H. Lie, "Cascading
486	              Style Sheets Level 2 Revision 1 (CSS 2.1) Specification",
487	              World Wide Web Consortium Recommendation REC-
488	              CSS2-20110607, June 2011,
489	              <http://www.w3.org/TR/2011/REC-CSS2-20110607>.

491	9.2.  Informative References

493	   [W3C.REC-SVG11-20110816]
494	              Dahlstrom, E., Dengler, P., Grasso, A., Lilley, C.,
495	              McCormack, C., Schepers, D., Watt, J., Ferraiolo, J.,
496	              Fujisawa, J., and D. Jackson, "Scalable Vector Graphics
497	              (SVG) 1.1 (Second Edition)", World Wide Web Consortium
498	              Recommendation REC-SVG11-20110816, August 2011,
499	              <http://www.w3.org/TR/2011/REC-SVG11-20110816>.

501	   [SVG-ACCESS-TIPS]
502	              Watson, L., "Tips for Creating Accessible SVG", SitePoint
503	              tips-accessible-svg, May 2014,
504	              <http://www.sitepoint.com/tips-accessible-svg>.

506	   [SVG-ARIA-PRIMER]
507	              Pappas, L., Schwerdtfeger, R., and M. Cooper, "WAI-ARIA
508	              1.0 Primer", World Wide Web Consortium WD WD-wai-aria-
509	              primer-20100916, September 2010,
510	              <http://www.w3.org/TR/2010/WD-wai-aria-primer-20100916>.

512	   [SVG-USING-ARIA]
513	              Watson, L., "Using ARIA to enhance SVG accessibility", The
514	              Paciello Group 2013/12/using-aria-enhance-svg-
515	              accessibility, December 2013,
516	              <http://blog.paciellogroup.com/2013/12/
517	              using-aria-enhance-svg-accessibility>.

519	   [XML2RFCv3]
520	              Hoffman, P., "The "xml2rfc" version 3 Vocabulary", draft-
521	              iab-xml2rfc-03 (work in progress), February 2016.

523	   [This-I-D-with-SVG-included]
524	              Brownlee, N., "Example html version of this I-D with its
525	              SVG diagrams included", Nevil's home
526	              page, https://www.cs.auckland.ac.nz/~nevil/SVG_RFC_1.2,
527	              October 16 2015.

529	   [RFC0793]  Postel, J., "Transmission Control Protocol", STD 7,
530	              RFC 793, DOI 10.17487/RFC0793, September 1981,
531	              <http://www.rfc-editor.org/info/rfc793>.

533	   [ExpTrustedProxy]
534	              Loretto, S., Mattson, J., Skog, R., Spaak, H., Gus, G.,
535	              Druta, D., and M. Hafeez, "Explicit Trusted Proxy in
536	              HTTP/2.0", Internet Draft draft-loreto-httpbis-trusted-
537	              proxy20-01, February 2014.

539	   [RFC4321]  Sparks, R., "Problems Identified Associated with the
540	              Session Initiation Protocol's (SIP) Non-INVITE
541	              Transaction", RFC 4321, DOI 10.17487/RFC4321, January
542	              2006, <http://www.rfc-editor.org/info/rfc4321>.

544	Appendix A.  RELAX NG Compact (rnc) Schema for SVG 1.2 RFC

546	   The following rnc schema can be used to check whether an svg file
547	   conforms to SVG 1.2 RFC.  For example, if this schema were contained
548	   in a file called SVG-1.2-RFC.rnc, the following command will test
549	   whether svg file diagram.svg is a conformant SVG 1.2 RFC drawing.

551	   jing -c SVG-1.2-RFC.rnc diagram.svg

553	#---  SVG 1.2 RFC rnc schema;  Nevil Brownlee, Thu 26 Jan 2016 (NZST)

555	default namespace = "http://www.w3.org/2000/svg"
556	namespace ns1 = "http://www.w3.org/1999/xlink"

558	rfc-color = (  # SVG-1.2-RFC doesn't allow "color or grey-scale"
559	  "black" | "white" | "#000000" | "#FFFFFF" | "#ffffff" | "inherit" )
560	start = svg
561	svg =
562	  element svg {
563	    ((attribute fill-opacity { "inherit" | xsd:string }?,
564	      attribute stroke-opacity { "inherit" | xsd:string }?)
565	     & (attribute fill { "none" | rfc-color }?,
566	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
567	        attribute stroke { rfc-color }?,
568	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
569	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
570	        attribute stroke-linecap {
571	          "butt" | "round" | "square" | "inherit"
572	        }?,
573	        attribute stroke-linejoin {
574	          "miter" | "round" | "bevel" | "inherit"
575	        }?,
576	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
577	        attribute stroke-width { "inherit" | xsd:string }?,
578	        attribute color { rfc-color }?,
579	        attribute color-rendering {
580	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
581	        }?)
582	     & attribute vector-effect {
583	         "none" | "non-scaling-stroke" | "inherit"
584	       }?
585	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
586	        attribute unicode-bidi {
587	          "normal" | "embed" | "bidi-override" | "inherit"
588	        }?)
589	     & (attribute solid-color { rfc-color }?,
590	        attribute solid-opacity { "inherit" | xsd:string }?)
591	     & (attribute display-align {
592	          "auto" | "before" | "center" | "after" | "inherit"
593	        }?,
594	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
595	     & (attribute stop-color { rfc-color }?,
596	        attribute stop-opacity { "inherit" | xsd:string }?)
597	     & (attribute font-family { "inherit" | xsd:string }?,
598	        attribute font-size { "inherit" | xsd:string }?,
599	        attribute font-style {
600	          "normal" | "italic" | "oblique" | "inherit"
601	        }?,
602	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
603	        attribute font-weight {
604	          "normal"
605	          | "bold"
606	          | "bolder"
607	          | "lighter"
608	        }?,
609	        attribute text-anchor {
610	          "start" | "middle" | "end" | "inherit"

612	}?,
613	        attribute text-align {
614	          "start" | "center" | "end" | "inherit"
615	        }?)),
616	    (attribute id { xsd:NCName }
617	     | attribute xml:id { xsd:NCName })?,

619	    attribute xml:base { xsd:anyURI | xsd:string }?,
620	    attribute xml:lang { xsd:language? }?,
621	    attribute class { xsd:NMTOKENS }?,
622	    attribute role { xsd:string }?,
623	    attribute rel { xsd:string }?,
624	    attribute rev { xsd:string }?,
625	    attribute typeof { xsd:string }?,
626	    attribute content { xsd:string }?,
627	    attribute datatype { xsd:string }?,
628	    attribute resource { xsd:string }?,
629	    attribute about { xsd:string }?,
630	    attribute property { xsd:string }?,
631	    attribute xml:space { "default" | "preserve" }?,

633	    attribute width { xsd:string }?,
634	    attribute height { xsd:string }?,
635	    attribute preserveAspectRatio {
636	      xsd:string { pattern = "\s*(none|xMidYMid)\s*(meet)?\s*" }
637	    }?,
638	    attribute viewBox { text }?,
639	    attribute zoomAndPan { "disable" }?,
640	    attribute version {
641	      xsd:string "1.2"
642	    }?,
643	    attribute baseProfile {
644	      xsd:string "tiny"
645	    }?,
646	    attribute contentScriptType { xsd:string }?,
647	    attribute snapshotTime { xsd:string "none" | xsd:string }?,
648	    attribute timelineBegin {
649	      xsd:string "onLoad" | xsd:string "onStart"
650	    }?,
651	    attribute playbackOrder {
652	      xsd:string "all" | xsd:string "forwardOnly"
653	    }?,
654	    (desc
655	     | svgTitle
656	     | path
657	     | rect
658	     | circle
659	     | line
660	     | ellipse
661	     | polyline
662	     | polygon
663	     | solidColor
664	     | textArea
665	     | linearGradient
666	     | radialGradient
667	     | \text
668	     | g
669	     | defs
670	     | use
671	     | a)*
672	  }
673	desc =
674	  element desc {
675	    (attribute id { xsd:NCName }
676	     | attribute xml:id { xsd:NCName })?,
677	    attribute xml:base { xsd:anyURI | xsd:string }?,
678	    attribute xml:lang { xsd:language? }?,
679	    attribute class { xsd:NMTOKENS }?,
680	    attribute role { xsd:string }?,
681	    attribute rel { xsd:string }?,
682	    attribute rev { xsd:string }?,
683	    attribute typeof { xsd:string }?,
684	    attribute content { xsd:string }?,
685	    attribute datatype { xsd:string }?,
686	    attribute resource { xsd:string }?,
687	    attribute about { xsd:string }?,
688	    attribute property { xsd:string }?,
689	    attribute xml:space { "default" | "preserve" }?,
690	    attribute requiredFeatures { xsd:string }?,
691	    attribute requiredExtensions { xsd:string }?,
692	    attribute requiredFormats { xsd:string }?,
693	    attribute requiredFonts { xsd:string }?,
694	    attribute systemLanguage { xsd:string }?,
695	    ((attribute display {
696	        "inline"
697	        | "block"
698	        | "list-item"
699	        | "run-in"
700	        | "compact"
701	        | "marker"
702	        | "table"
703	        | "inline-table"
704	        | "table-row-group"
705	        | "table-header-group"
706	        | "table-footer-group"
707	        | "table-row"
708	        | "table-column-group"
709	        | "table-column"
710	        | "table-cell"
711	        | "table-caption"
712	        | "none"
713	        | "inherit"
714	      }?,
715	      attribute visibility { "visible" | "hidden" | "collapse"
716	        | "inherit" }?,
717	      attribute image-rendering {
718	        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
719	      }?,
720	      attribute shape-rendering {
721	        "auto"
722	        | "optimizeSpeed"
723	        | "crispEdges"
724	        | "geometricPrecision"
725	        | "inherit"
726	      }?,
727	      attribute text-rendering {
728	        "auto"
729	        | "optimizeSpeed"
730	        | "optimizeLegibility"
731	        | "geometricPrecision"
732	        | "inherit"
733	      }?,
734	      attribute buffered-rendering {
735	        "auto" | "dynamic" | "static" | "inherit"
736	      }?)
737	     & (attribute viewport-fill { "none" | rfc-color }?,
738	        attribute viewport-fill-opacity { "inherit" | xsd:string }?)),
739	    text
740	  }
741	svgTitle =
742	  element title {
743	    (attribute id { xsd:NCName }
744	     | attribute xml:id { xsd:NCName })?,
745	    attribute xml:base { xsd:anyURI | xsd:string }?,
746	    attribute xml:lang { xsd:language? }?,
747	    attribute class { xsd:NMTOKENS }?,
748	    attribute role { xsd:string }?,
749	    attribute rel { xsd:string }?,
750	    attribute rev { xsd:string }?,
751	    attribute typeof { xsd:string }?,
752	    attribute content { xsd:string }?,
753	    attribute datatype { xsd:string }?,
754	    attribute resource { xsd:string }?,
755	    attribute about { xsd:string }?,
756	    attribute property { xsd:string }?,
757	    attribute xml:space { "default" | "preserve" }?,
758	    attribute requiredFeatures { xsd:string }?,
759	    attribute requiredExtensions { xsd:string }?,
760	    attribute requiredFormats { xsd:string }?,
761	    attribute requiredFonts { xsd:string }?,
762	    attribute systemLanguage { xsd:string }?,
763	    ((attribute display {
764	        "inline"
765	        | "block"
766	        | "list-item"
767	        | "run-in"
768	        | "compact"
769	        | "marker"
770	        | "table"
771	        | "inline-table"
772	        | "table-row-group"
773	        | "table-header-group"
774	        | "table-footer-group"
775	        | "table-row"
776	        | "table-column-group"
777	        | "table-column"
778	        | "table-cell"
779	        | "table-caption"
780	        | "none"
781	        | "inherit"
782	      }?,
783	      attribute visibility { "visible" | "hidden"
784	        | "collapse" | "inherit" }?,
785	      attribute image-rendering {
786	        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
787	      }?,
788	      attribute shape-rendering {
789	        "auto"
790	        | "optimizeSpeed"
791	        | "crispEdges"
792	        | "geometricPrecision"
793	        | "inherit"
794	      }?,
795	      attribute text-rendering {
796	        "auto"
797	        | "optimizeSpeed"
798	        | "optimizeLegibility"
799	        | "geometricPrecision"
800	        | "inherit"
801	      }?,
802	      attribute buffered-rendering {
803	        "auto" | "dynamic" | "static" | "inherit"
804	      }?)
805	     & (attribute viewport-fill { "none" | rfc-color }?,
806	        attribute viewport-fill-opacity { "inherit" | xsd:string }?)),
807	    text
808	  }
809	path =
810	  element path {
811	    (attribute id { xsd:NCName }
812	     | attribute xml:id { xsd:NCName })?,
813	    attribute xml:base { xsd:anyURI | xsd:string }?,
814	    attribute xml:lang { xsd:language? }?,
815	    attribute class { xsd:NMTOKENS }?,
816	    attribute role { xsd:string }?,
817	    attribute rel { xsd:string }?,
818	    attribute rev { xsd:string }?,
819	    attribute typeof { xsd:string }?,
820	    attribute content { xsd:string }?,
821	    attribute datatype { xsd:string }?,
822	    attribute resource { xsd:string }?,
823	    attribute about { xsd:string }?,
824	    attribute property { xsd:string }?,
825	    attribute xml:space { "default" | "preserve" }?,
826	    attribute transform { xsd:string | "none" }?,
827	    ((attribute fill-opacity { "inherit" | xsd:string }?,
828	      attribute stroke-opacity { "inherit" | xsd:string }?)
829	     & (attribute fill { "none" | rfc-color }?,
830	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
831	        attribute stroke { rfc-color }?,
832	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
833	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
834	        attribute stroke-linecap {
835	          "butt" | "round" | "square" | "inherit"
836	        }?,
837	        attribute stroke-linejoin {
838	          "miter" | "round" | "bevel" | "inherit"
839	        }?,
840	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
841	        attribute stroke-width { "inherit" | xsd:string }?,
842	        attribute color { rfc-color }?,
843	        attribute color-rendering {
844	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
845	        }?)
846	     & attribute vector-effect {
847	         "none" | "non-scaling-stroke" | "inherit"
848	       }?
849	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
850	        attribute unicode-bidi {
851	          "normal" | "embed" | "bidi-override" | "inherit"
852	        }?)
853	     & (attribute solid-color { rfc-color }?,
854	        attribute solid-opacity { "inherit" | xsd:string }?)
855	     & (attribute display-align {
856	          "auto" | "before" | "center" | "after" | "inherit"
857	        }?,
858	        attribute line-increment { "auto" | "inherit" | xsd:string }?)

860	     & (attribute stop-color { rfc-color }?,
861	        attribute stop-opacity { "inherit" | xsd:string }?)
862	     & (attribute font-family { "inherit" | xsd:string }?,
863	        attribute font-size { "inherit" | xsd:string }?,
864	        attribute font-style {
865	          "normal" | "italic" | "oblique" | "inherit"
866	        }?,
867	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
868	        attribute font-weight {
869	          "normal"
870	          | "bold"
871	          | "bolder"
872	          | "lighter"
873	          | "inherit"
874	        }?,
875	        attribute text-anchor {
876	          "start" | "middle" | "end" | "inherit"
877	        }?,
878	        attribute text-align {
879	          "start" | "center" | "end" | "inherit"
880	        }?)),
881	    attribute requiredFeatures { xsd:string }?,
882	    attribute requiredExtensions { xsd:string }?,
883	    attribute requiredFormats { xsd:string }?,
884	    attribute requiredFonts { xsd:string }?,
885	    attribute systemLanguage { xsd:string }?,
886	    attribute d { xsd:string }?,
887	    attribute pathLength { xsd:string }?,
888	    attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
889	    (desc
890	     | svgTitle)*
891	  }
892	rect =
893	  element rect {
894	    (attribute id { xsd:NCName }
895	     | attribute xml:id { xsd:NCName })?,
896	    attribute xml:base { xsd:anyURI | xsd:string }?,
897	    attribute xml:lang { xsd:language? }?,
898	    attribute class { xsd:NMTOKENS }?,
899	    attribute role { xsd:string }?,
900	    attribute rel { xsd:string }?,
901	    attribute rev { xsd:string }?,
902	    attribute typeof { xsd:string }?,
903	    attribute content { xsd:string }?,
904	    attribute datatype { xsd:string }?,
905	    attribute resource { xsd:string }?,
906	    attribute about { xsd:string }?,
907	    attribute property { xsd:string }?,
908	    attribute xml:space { "default" | "preserve" }?,
909	    attribute transform { xsd:string | "none" }?,
910	    ((attribute fill-opacity { "inherit" | xsd:string }?,
911	      attribute stroke-opacity { "inherit" | xsd:string }?)
912	     & (attribute fill { "none" | rfc-color }?,
913	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
914	        attribute stroke { rfc-color }?,
915	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
916	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
917	        attribute stroke-linecap {
918	          "butt" | "round" | "square" | "inherit"
919	        }?,
920	        attribute stroke-linejoin {
921	          "miter" | "round" | "bevel" | "inherit"
922	        }?,
923	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
924	        attribute stroke-width { "inherit" | xsd:string }?,
925	        attribute color { rfc-color }?,
926	        attribute color-rendering {
927	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
928	        }?)
929	     & attribute vector-effect {
930	         "none" | "non-scaling-stroke" | "inherit"
931	       }?
932	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
933	        attribute unicode-bidi {
934	          "normal" | "embed" | "bidi-override" | "inherit"
935	        }?)
936	     & (attribute solid-color { rfc-color }?,
937	        attribute solid-opacity { "inherit" | xsd:string }?)
938	     & (attribute display-align {
939	          "auto" | "before" | "center" | "after" | "inherit"
940	        }?,
941	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
942	     & (attribute stop-color { rfc-color }?,
943	        attribute stop-opacity { "inherit" | xsd:string }?)
944	     & (attribute font-family { "inherit" | xsd:string }?,
945	        attribute font-size { "inherit" | xsd:string }?,
946	        attribute font-style {
947	          "normal" | "italic" | "oblique" | "inherit"
948	        }?,
949	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
950	        attribute font-weight {
951	          "normal"
952	          | "bold"
953	          | "bolder"
954	          | "lighter"
955	          | "inherit"

957	        }?,
958	        attribute text-anchor {
959	          "start" | "middle" | "end" | "inherit"
960	        }?,
961	        attribute text-align {
962	          "start" | "center" | "end" | "inherit"
963	        }?)),
964	    attribute requiredFeatures { xsd:string }?,
965	    attribute requiredExtensions { xsd:string }?,
966	    attribute requiredFormats { xsd:string }?,
967	    attribute requiredFonts { xsd:string }?,
968	    attribute systemLanguage { xsd:string }?,
969	    attribute x { xsd:string }?,
970	    attribute y { xsd:string }?,
971	    attribute width { xsd:string }?,
972	    attribute height { xsd:string }?,
973	    attribute rx { xsd:string }?,
974	    attribute ry { xsd:string }?,
975	    attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
976	    (desc
977	     | svgTitle)*
978	  }
979	circle =
980	  element circle {
981	    (attribute id { xsd:NCName }
982	     | attribute xml:id { xsd:NCName })?,
983	    attribute xml:base { xsd:anyURI | xsd:string }?,
984	    attribute xml:lang { xsd:language? }?,
985	    attribute class { xsd:NMTOKENS }?,
986	    attribute role { xsd:string }?,
987	    attribute rel { xsd:string }?,
988	    attribute rev { xsd:string }?,
989	    attribute typeof { xsd:string }?,
990	    attribute content { xsd:string }?,
991	    attribute datatype { xsd:string }?,
992	    attribute resource { xsd:string }?,
993	    attribute about { xsd:string }?,
994	    attribute property { xsd:string }?,
995	    attribute xml:space { "default" | "preserve" }?,
996	    attribute transform { xsd:string | "none" }?,
997	    ((attribute fill-opacity { "inherit" | xsd:string }?,
998	      attribute stroke-opacity { "inherit" | xsd:string }?)
999	     & (attribute fill { "none" | rfc-color }?,
1000	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1001	        attribute stroke { rfc-color }?,
1002	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1003	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1004	        attribute stroke-linecap {
1005	          "butt" | "round" | "square" | "inherit"
1006	        }?,
1007	        attribute stroke-linejoin {
1008	          "miter" | "round" | "bevel" | "inherit"
1009	        }?,
1010	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1011	        attribute stroke-width { "inherit" | xsd:string }?,
1012	        attribute color { rfc-color }?,
1013	        attribute color-rendering {
1014	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1015	        }?)
1016	     & attribute vector-effect {
1017	         "none" | "non-scaling-stroke" | "inherit"
1018	       }?
1019	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1020	        attribute unicode-bidi {
1021	          "normal" | "embed" | "bidi-override" | "inherit"
1022	        }?)
1023	     & (attribute solid-color { rfc-color }?,
1024	        attribute solid-opacity { "inherit" | xsd:string }?)
1025	     & (attribute display-align {
1026	          "auto" | "before" | "center" | "after" | "inherit"
1027	        }?,
1028	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1029	     & (attribute stop-color { rfc-color }?,
1030	        attribute stop-opacity { "inherit" | xsd:string }?)
1031	     & (attribute font-family { "inherit" | xsd:string }?,
1032	        attribute font-size { "inherit" | xsd:string }?,
1033	        attribute font-style {
1034	          "normal" | "italic" | "oblique" | "inherit"
1035	        }?,
1036	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1037	        attribute font-weight {
1038	          "normal"
1039	          | "bold"
1040	          | "bolder"
1041	          | "lighter"
1042	          | "inherit"
1043	        }?,
1044	        attribute text-anchor {
1045	          "start" | "middle" | "end" | "inherit"
1046	        }?,
1047	        attribute text-align {
1048	          "start" | "center" | "end" | "inherit"
1049	        }?)),
1050	    attribute requiredFeatures { xsd:string }?,
1051	    attribute requiredExtensions { xsd:string }?,
1052	    attribute requiredFormats { xsd:string }?,
1053	    attribute requiredFonts { xsd:string }?,
1054	    attribute systemLanguage { xsd:string }?,
1055	    attribute cx { xsd:string }?,
1056	    attribute cy { xsd:string }?,
1057	    attribute r { xsd:string }?,
1058	    attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
1059	    (desc
1060	     | svgTitle)*
1061	  }
1062	line =
1063	  element line {
1064	    (attribute id { xsd:NCName }
1065	     | attribute xml:id { xsd:NCName })?,
1066	    attribute xml:base { xsd:anyURI | xsd:string }?,
1067	    attribute xml:lang { xsd:language? }?,
1068	    attribute class { xsd:NMTOKENS }?,
1069	    attribute role { xsd:string }?,
1070	    attribute rel { xsd:string }?,
1071	    attribute rev { xsd:string }?,
1072	    attribute typeof { xsd:string }?,
1073	    attribute content { xsd:string }?,
1074	    attribute datatype { xsd:string }?,
1075	    attribute resource { xsd:string }?,
1076	    attribute about { xsd:string }?,
1077	    attribute property { xsd:string }?,
1078	    attribute xml:space { "default" | "preserve" }?,
1079	    attribute transform { xsd:string | "none" }?,
1080	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1081	      attribute stroke-opacity { "inherit" | xsd:string }?)
1082	     & (attribute fill { "none" | rfc-color }?,
1083	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1084	        attribute stroke { rfc-color }?,
1085	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1086	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1087	        attribute stroke-linecap {
1088	          "butt" | "round" | "square" | "inherit"
1089	        }?,
1090	        attribute stroke-linejoin {
1091	          "miter" | "round" | "bevel" | "inherit"
1092	        }?,
1093	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1094	        attribute stroke-width { "inherit" | xsd:string }?,
1095	        attribute color { rfc-color }?,
1096	        attribute color-rendering {
1097	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1098	        }?)
1099	     & attribute vector-effect {
1100	         "none" | "non-scaling-stroke" | "inherit"

1102	       }?
1103	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1104	        attribute unicode-bidi {
1105	          "normal" | "embed" | "bidi-override" | "inherit"
1106	        }?)
1107	     & (attribute solid-color { rfc-color }?,
1108	        attribute solid-opacity { "inherit" | xsd:string }?)
1109	     & (attribute display-align {
1110	          "auto" | "before" | "center" | "after" | "inherit"
1111	        }?,
1112	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1113	     & (attribute stop-color { rfc-color }?,
1114	        attribute stop-opacity { "inherit" | xsd:string }?)
1115	     & (attribute font-family { "inherit" | xsd:string }?,
1116	        attribute font-size { "inherit" | xsd:string }?,
1117	        attribute font-style {
1118	          "normal" | "italic" | "oblique" | "inherit"
1119	        }?,
1120	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1121	        attribute font-weight {
1122	          "normal"
1123	          | "bold"
1124	          | "bolder"
1125	          | "lighter"
1126	          | "inherit"
1127	        }?,
1128	        attribute text-anchor {
1129	          "start" | "middle" | "end" | "inherit"
1130	        }?,
1131	        attribute text-align {
1132	          "start" | "center" | "end" | "inherit"
1133	        }?)),
1134	    attribute requiredFeatures { xsd:string }?,
1135	    attribute requiredExtensions { xsd:string }?,
1136	    attribute requiredFormats { xsd:string }?,
1137	    attribute requiredFonts { xsd:string }?,
1138	    attribute systemLanguage { xsd:string }?,
1139	    attribute x1 { xsd:string }?,
1140	    attribute y1 { xsd:string }?,
1141	    attribute x2 { xsd:string }?,
1142	    attribute y2 { xsd:string }?,
1143	    (desc
1144	     | svgTitle)*
1145	  }
1146	ellipse =
1147	  element ellipse {
1148	    (attribute id { xsd:NCName }
1149	     | attribute xml:id { xsd:NCName })?,

1151	    attribute xml:base { xsd:anyURI | xsd:string }?,
1152	    attribute xml:lang { xsd:language? }?,
1153	    attribute class { xsd:NMTOKENS }?,
1154	    attribute role { xsd:string }?,
1155	    attribute rel { xsd:string }?,
1156	    attribute rev { xsd:string }?,
1157	    attribute typeof { xsd:string }?,
1158	    attribute content { xsd:string }?,
1159	    attribute datatype { xsd:string }?,
1160	    attribute resource { xsd:string }?,
1161	    attribute about { xsd:string }?,
1162	    attribute property { xsd:string }?,
1163	    attribute xml:space { "default" | "preserve" }?,
1164	    attribute transform { xsd:string | "none" }?,
1165	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1166	      attribute stroke-opacity { "inherit" | xsd:string }?)
1167	     & (attribute fill { "none" | rfc-color }?,
1168	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1169	        attribute stroke { rfc-color }?,
1170	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1171	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1172	        attribute stroke-linecap {
1173	          "butt" | "round" | "square" | "inherit"
1174	        }?,
1175	        attribute stroke-linejoin {
1176	          "miter" | "round" | "bevel" | "inherit"
1177	        }?,
1178	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1179	        attribute stroke-width { "inherit" | xsd:string }?,
1180	        attribute color { rfc-color }?,
1181	        attribute color-rendering {
1182	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1183	        }?)
1184	     & attribute vector-effect {
1185	         "none" | "non-scaling-stroke" | "inherit"
1186	       }?
1187	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1188	        attribute unicode-bidi {
1189	          "normal" | "embed" | "bidi-override" | "inherit"
1190	        }?)
1191	     & (attribute solid-color { rfc-color }?,
1192	        attribute solid-opacity { "inherit" | xsd:string }?)
1193	     & (attribute display-align {
1194	          "auto" | "before" | "center" | "after" | "inherit"
1195	        }?,
1196	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1197	     & (attribute stop-color { rfc-color }?,
1198	        attribute stop-opacity { "inherit" | xsd:string }?)

1200	     & (attribute font-family { "inherit" | xsd:string }?,
1201	        attribute font-size { "inherit" | xsd:string }?,
1202	        attribute font-style {
1203	          "normal" | "italic" | "oblique" | "inherit"
1204	        }?,
1205	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1206	        attribute font-weight {
1207	          "normal"
1208	          | "bold"
1209	          | "bolder"
1210	          | "lighter"
1211	          | "inherit"
1212	        }?,
1213	        attribute text-anchor {
1214	          "start" | "middle" | "end" | "inherit"
1215	        }?,
1216	        attribute text-align {
1217	          "start" | "center" | "end" | "inherit"
1218	        }?)),
1219	    attribute requiredFeatures { xsd:string }?,
1220	    attribute requiredExtensions { xsd:string }?,
1221	    attribute requiredFormats { xsd:string }?,
1222	    attribute requiredFonts { xsd:string }?,
1223	    attribute systemLanguage { xsd:string }?,
1224	    attribute rx { xsd:string }?,
1225	    attribute ry { xsd:string }?,
1226	    attribute cx { xsd:string }?,
1227	    attribute cy { xsd:string }?,
1228	    attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
1229	    (desc
1230	     | svgTitle)*
1231	  }
1232	polyline =
1233	  element polyline {
1234	    (attribute id { xsd:NCName }
1235	     | attribute xml:id { xsd:NCName })?,
1236	    attribute xml:base { xsd:anyURI | xsd:string }?,
1237	    attribute xml:lang { xsd:language? }?,
1238	    attribute class { xsd:NMTOKENS }?,
1239	    attribute role { xsd:string }?,
1240	    attribute rel { xsd:string }?,
1241	    attribute rev { xsd:string }?,
1242	    attribute typeof { xsd:string }?,
1243	    attribute content { xsd:string }?,
1244	    attribute datatype { xsd:string }?,
1245	    attribute resource { xsd:string }?,
1246	    attribute about { xsd:string }?,
1247	    attribute property { xsd:string }?,
1248	    attribute xml:space { "default" | "preserve" }?,
1249	    attribute transform { xsd:string | "none" }?,
1250	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1251	      attribute stroke-opacity { "inherit" | xsd:string }?)
1252	     & (attribute fill { "none" | rfc-color }?,
1253	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1254	        attribute stroke { rfc-color }?,
1255	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1256	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1257	        attribute stroke-linecap {
1258	          "butt" | "round" | "square" | "inherit"
1259	        }?,
1260	        attribute stroke-linejoin {
1261	          "miter" | "round" | "bevel" | "inherit"
1262	        }?,
1263	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1264	        attribute stroke-width { "inherit" | xsd:string }?,
1265	        attribute color { rfc-color }?,
1266	        attribute color-rendering {
1267	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1268	        }?)
1269	     & attribute vector-effect {
1270	         "none" | "non-scaling-stroke" | "inherit"
1271	       }?
1272	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1273	        attribute unicode-bidi {
1274	          "normal" | "embed" | "bidi-override" | "inherit"
1275	        }?)
1276	     & (attribute solid-color { rfc-color }?,
1277	        attribute solid-opacity { "inherit" | xsd:string }?)
1278	     & (attribute display-align {
1279	          "auto" | "before" | "center" | "after" | "inherit"
1280	        }?,
1281	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1282	     & (attribute stop-color { rfc-color }?,
1283	        attribute stop-opacity { "inherit" | xsd:string }?)
1284	     & (attribute font-family { "inherit" | xsd:string }?,
1285	        attribute font-size { "inherit" | xsd:string }?,
1286	        attribute font-style {
1287	          "normal" | "italic" | "oblique" | "inherit"
1288	        }?,
1289	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1290	        attribute font-weight {
1291	          "normal"
1292	          | "bold"
1293	          | "bolder"
1294	          | "lighter"
1295	          | "inherit"

1297	        }?,
1298	        attribute text-anchor {
1299	          "start" | "middle" | "end" | "inherit"
1300	        }?,
1301	        attribute text-align {
1302	          "start" | "center" | "end" | "inherit"
1303	        }?)),
1304	    attribute requiredFeatures { xsd:string }?,
1305	    attribute requiredExtensions { xsd:string }?,
1306	    attribute requiredFormats { xsd:string }?,
1307	    attribute requiredFonts { xsd:string }?,
1308	    attribute systemLanguage { xsd:string }?,
1309	    attribute points { xsd:string }?,
1310	    (desc
1311	     | svgTitle)*
1312	  }
1313	polygon =
1314	  element polygon {
1315	    (attribute id { xsd:NCName }
1316	     | attribute xml:id { xsd:NCName })?,
1317	    attribute xml:base { xsd:anyURI | xsd:string }?,
1318	    attribute xml:lang { xsd:language? }?,
1319	    attribute class { xsd:NMTOKENS }?,
1320	    attribute role { xsd:string }?,
1321	    attribute rel { xsd:string }?,
1322	    attribute rev { xsd:string }?,
1323	    attribute typeof { xsd:string }?,
1324	    attribute content { xsd:string }?,
1325	    attribute datatype { xsd:string }?,
1326	    attribute resource { xsd:string }?,
1327	    attribute about { xsd:string }?,
1328	    attribute property { xsd:string }?,
1329	    attribute xml:space { "default" | "preserve" }?,
1330	    attribute transform { xsd:string | "none" }?,
1331	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1332	      attribute stroke-opacity { "inherit" | xsd:string }?)
1333	     & (attribute fill { "none" | rfc-color }?,
1334	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1335	        attribute stroke { rfc-color }?,
1336	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1337	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1338	        attribute stroke-linecap {
1339	          "butt" | "round" | "square" | "inherit"
1340	        }?,
1341	        attribute stroke-linejoin {
1342	          "miter" | "round" | "bevel" | "inherit"
1343	        }?,
1344	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1345	        attribute stroke-width { "inherit" | xsd:string }?,
1346	        attribute color { rfc-color }?,
1347	        attribute color-rendering {
1348	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1349	        }?)
1350	     & attribute vector-effect {
1351	         "none" | "non-scaling-stroke" | "inherit"
1352	       }?
1353	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1354	        attribute unicode-bidi {
1355	          "normal" | "embed" | "bidi-override" | "inherit"
1356	        }?)
1357	     & (attribute solid-color { rfc-color }?,
1358	        attribute solid-opacity { "inherit" | xsd:string }?)
1359	     & (attribute display-align {
1360	          "auto" | "before" | "center" | "after" | "inherit"
1361	        }?,
1362	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1363	     & (attribute stop-color { rfc-color }?,
1364	        attribute stop-opacity { "inherit" | xsd:string }?)
1365	     & (attribute font-family { "inherit" | xsd:string }?,
1366	        attribute font-size { "inherit" | xsd:string }?,
1367	        attribute font-style {
1368	          "normal" | "italic" | "oblique" | "inherit"
1369	        }?,
1370	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1371	        attribute font-weight {
1372	          "normal"
1373	          | "bold"
1374	          | "bolder"
1375	          | "lighter"
1376	          | "inherit"
1377	        }?,
1378	        attribute text-anchor {
1379	          "start" | "middle" | "end" | "inherit"
1380	        }?,
1381	        attribute text-align {
1382	          "start" | "center" | "end" | "inherit"
1383	        }?)),
1384	    attribute requiredFeatures { xsd:string }?,
1385	    attribute requiredExtensions { xsd:string }?,
1386	    attribute requiredFormats { xsd:string }?,
1387	    attribute requiredFonts { xsd:string }?,
1388	    attribute systemLanguage { xsd:string }?,
1389	    attribute points { xsd:string }?,
1390	    attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
1391	    (desc
1392	     | svgTitle)*

1394	  }
1395	solidColor =
1396	  element solidColor {
1397	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1398	      attribute stroke-opacity { "inherit" | xsd:string }?)
1399	     & (attribute fill { "none" | rfc-color }?,
1400	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1401	        attribute stroke { rfc-color }?,
1402	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1403	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1404	        attribute stroke-linecap {
1405	          "butt" | "round" | "square" | "inherit"
1406	        }?,
1407	        attribute stroke-linejoin {
1408	          "miter" | "round" | "bevel" | "inherit"
1409	        }?,
1410	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1411	        attribute stroke-width { "inherit" | xsd:string }?,
1412	        attribute color { rfc-color }?,
1413	        attribute color-rendering {
1414	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1415	        }?)
1416	     & attribute vector-effect {
1417	         "none" | "non-scaling-stroke" | "inherit"
1418	       }?
1419	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1420	        attribute unicode-bidi {
1421	          "normal" | "embed" | "bidi-override" | "inherit"
1422	        }?)
1423	     & (attribute solid-color { rfc-color }?,
1424	        attribute solid-opacity { "inherit" | xsd:string }?)
1425	     & (attribute display-align {
1426	          "auto" | "before" | "center" | "after" | "inherit"
1427	        }?,
1428	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1429	     & (attribute stop-color { rfc-color }?,
1430	        attribute stop-opacity { "inherit" | xsd:string }?)
1431	     & (attribute font-family { "inherit" | xsd:string }?,
1432	        attribute font-size { "inherit" | xsd:string }?,
1433	        attribute font-style {
1434	          "normal" | "italic" | "oblique" | "inherit"
1435	        }?,
1436	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1437	        attribute font-weight {
1438	          "normal"
1439	          | "bold"
1440	          | "bolder"
1441	          | "lighter"
1442	          | "inherit"
1443	        }?,
1444	        attribute text-anchor {
1445	          "start" | "middle" | "end" | "inherit"
1446	        }?,
1447	        attribute text-align {
1448	          "start" | "center" | "end" | "inherit"
1449	        }?)),
1450	    (attribute id { xsd:NCName }
1451	     | attribute xml:id { xsd:NCName })?,
1452	    attribute xml:base { xsd:anyURI | xsd:string }?,
1453	    attribute xml:lang { xsd:language? }?,
1454	    attribute class { xsd:NMTOKENS }?,
1455	    attribute role { xsd:string }?,
1456	    attribute rel { xsd:string }?,
1457	    attribute rev { xsd:string }?,
1458	    attribute typeof { xsd:string }?,
1459	    attribute content { xsd:string }?,
1460	    attribute datatype { xsd:string }?,
1461	    attribute resource { xsd:string }?,
1462	    attribute about { xsd:string }?,
1463	    attribute property { xsd:string }?,
1464	    attribute xml:space { "default" | "preserve" }?,
1465	    (desc
1466	     | svgTitle)*
1467	  }
1468	textArea =
1469	  element textArea {
1470	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1471	      attribute stroke-opacity { "inherit" | xsd:string }?)
1472	     & (attribute fill { "none" | rfc-color }?,
1473	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1474	        attribute stroke { rfc-color }?,
1475	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1476	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1477	        attribute stroke-linecap {
1478	          "butt" | "round" | "square" | "inherit"
1479	        }?,
1480	        attribute stroke-linejoin {
1481	          "miter" | "round" | "bevel" | "inherit"
1482	        }?,
1483	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1484	        attribute stroke-width { "inherit" | xsd:string }?,
1485	        attribute color { rfc-color }?,
1486	        attribute color-rendering {
1487	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1488	        }?)
1489	     & attribute vector-effect {
1490	         "none" | "non-scaling-stroke" | "inherit"
1491	       }?
1492	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1493	        attribute unicode-bidi {
1494	          "normal" | "embed" | "bidi-override" | "inherit"
1495	        }?)
1496	     & (attribute solid-color { rfc-color }?,
1497	        attribute solid-opacity { "inherit" | xsd:string }?)
1498	     & (attribute display-align {
1499	          "auto" | "before" | "center" | "after" | "inherit"
1500	        }?,
1501	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1502	     & (attribute stop-color { rfc-color }?,
1503	        attribute stop-opacity { "inherit" | xsd:string }?)
1504	     & (attribute font-family { "inherit" | xsd:string }?,
1505	        attribute font-size { "inherit" | xsd:string }?,
1506	        attribute font-style {
1507	          "normal" | "italic" | "oblique" | "inherit"
1508	        }?,
1509	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1510	        attribute font-weight {
1511	          "normal"
1512	          | "bold"
1513	          | "bolder"
1514	          | "lighter"
1515	          | "inherit"
1516	        }?,
1517	        attribute text-anchor {
1518	          "start" | "middle" | "end" | "inherit"
1519	        }?,
1520	        attribute text-align {
1521	          "start" | "center" | "end" | "inherit"
1522	        }?)),
1523	    (attribute id { xsd:NCName }
1524	     | attribute xml:id { xsd:NCName })?,
1525	    attribute xml:base { xsd:anyURI | xsd:string }?,
1526	    attribute xml:lang { xsd:language? }?,
1527	    attribute class { xsd:NMTOKENS }?,
1528	    attribute role { xsd:string }?,
1529	    attribute rel { xsd:string }?,
1530	    attribute rev { xsd:string }?,
1531	    attribute typeof { xsd:string }?,
1532	    attribute content { xsd:string }?,
1533	    attribute datatype { xsd:string }?,
1534	    attribute resource { xsd:string }?,
1535	    attribute about { xsd:string }?,
1536	    attribute property { xsd:string }?,
1537	    attribute xml:space { "default" | "preserve" }?,
1538	    attribute requiredFeatures { xsd:string }?,
1539	    attribute requiredExtensions { xsd:string }?,
1540	    attribute requiredFormats { xsd:string }?,
1541	    attribute requiredFonts { xsd:string }?,
1542	    attribute systemLanguage { xsd:string }?,
1543	    attribute transform { xsd:string | "none" }?,
1544	    attribute x { xsd:string }?,
1545	    attribute y { xsd:string }?,
1546	    attribute width { xsd:string | "auto" }?,
1547	    attribute height { xsd:string | "auto" }?,
1548	    (tspan
1549	     | desc
1550	     | svgTitle
1551	     | tspan_2
1552	     | text
1553	     | a_2)+
1554	  }
1555	linearGradient =
1556	  element linearGradient {
1557	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1558	      attribute stroke-opacity { "inherit" | xsd:string }?)
1559	     & (attribute fill { "none" | rfc-color }?,
1560	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1561	        attribute stroke { rfc-color }?,
1562	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1563	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1564	        attribute stroke-linecap {
1565	          "butt" | "round" | "square" | "inherit"
1566	        }?,
1567	        attribute stroke-linejoin {
1568	          "miter" | "round" | "bevel" | "inherit"
1569	        }?,
1570	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1571	        attribute stroke-width { "inherit" | xsd:string }?,
1572	        attribute color { rfc-color }?,
1573	        attribute color-rendering {
1574	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1575	        }?)
1576	     & attribute vector-effect {
1577	         "none" | "non-scaling-stroke" | "inherit"
1578	       }?
1579	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1580	        attribute unicode-bidi {
1581	          "normal" | "embed" | "bidi-override" | "inherit"
1582	        }?)
1583	     & (attribute solid-color { rfc-color }?,
1584	        attribute solid-opacity { "inherit" | xsd:string }?)
1585	     & (attribute display-align {
1586	          "auto" | "before" | "center" | "after" | "inherit"
1587	        }?,
1588	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1589	     & (attribute stop-color { rfc-color }?,
1590	        attribute stop-opacity { "inherit" | xsd:string }?)
1591	     & (attribute font-family { "inherit" | xsd:string }?,
1592	        attribute font-size { "inherit" | xsd:string }?,
1593	        attribute font-style {
1594	          "normal" | "italic" | "oblique" | "inherit"
1595	        }?,
1596	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1597	        attribute font-weight {
1598	          "normal"
1599	          | "bold"
1600	          | "bolder"
1601	          | "lighter"
1602	          | "inherit"
1603	        }?,
1604	        attribute text-anchor {
1605	          "start" | "middle" | "end" | "inherit"
1606	        }?,
1607	        attribute text-align {
1608	          "start" | "center" | "end" | "inherit"
1609	        }?)),
1610	    attribute gradientUnits { "userSpaceOnUse" | "objectBoundingBox" }?,
1611	    (attribute id { xsd:NCName }
1612	     | attribute xml:id { xsd:NCName })?,
1613	    attribute xml:base { xsd:anyURI | xsd:string }?,
1614	    attribute xml:lang { xsd:language? }?,
1615	    attribute class { xsd:NMTOKENS }?,
1616	    attribute role { xsd:string }?,
1617	    attribute rel { xsd:string }?,
1618	    attribute rev { xsd:string }?,
1619	    attribute typeof { xsd:string }?,
1620	    attribute content { xsd:string }?,
1621	    attribute datatype { xsd:string }?,
1622	    attribute resource { xsd:string }?,
1623	    attribute about { xsd:string }?,
1624	    attribute property { xsd:string }?,
1625	    attribute xml:space { "default" | "preserve" }?,
1626	    attribute x1 { xsd:string }?,
1627	    attribute y1 { xsd:string }?,
1628	    attribute x2 { xsd:string }?,
1629	    attribute y2 { xsd:string }?,
1630	    (desc
1631	     | svgTitle)*
1632	  }
1633	radialGradient =
1634	  element radialGradient {
1635	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1636	      attribute stroke-opacity { "inherit" | xsd:string }?)
1637	     & (attribute fill { "none" | rfc-color }?,
1638	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1639	        attribute stroke { rfc-color }?,
1640	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1641	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1642	        attribute stroke-linecap {
1643	          "butt" | "round" | "square" | "inherit"
1644	        }?,
1645	        attribute stroke-linejoin {
1646	          "miter" | "round" | "bevel" | "inherit"
1647	        }?,
1648	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1649	        attribute stroke-width { "inherit" | xsd:string }?,
1650	        attribute color { rfc-color }?,
1651	        attribute color-rendering {
1652	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1653	        }?)
1654	     & attribute vector-effect {
1655	         "none" | "non-scaling-stroke" | "inherit"
1656	       }?
1657	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1658	        attribute unicode-bidi {
1659	          "normal" | "embed" | "bidi-override" | "inherit"
1660	        }?)
1661	     & (attribute solid-color { rfc-color }?,
1662	        attribute solid-opacity { "inherit" | xsd:string }?)
1663	     & (attribute display-align {
1664	          "auto" | "before" | "center" | "after" | "inherit"
1665	        }?,
1666	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1667	     & (attribute stop-color { rfc-color }?,
1668	        attribute stop-opacity { "inherit" | xsd:string }?)
1669	     & (attribute font-family { "inherit" | xsd:string }?,
1670	        attribute font-size { "inherit" | xsd:string }?,
1671	        attribute font-style {
1672	          "normal" | "italic" | "oblique" | "inherit"
1673	        }?,
1674	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1675	        attribute font-weight {
1676	          "normal"
1677	          | "bold"
1678	          | "bolder"
1679	          | "lighter"
1680	          | "inherit"
1681	        }?,
1682	        attribute text-anchor {
1683	          "start" | "middle" | "end" | "inherit"
1684	        }?,
1685	        attribute text-align {
1686	          "start" | "center" | "end" | "inherit"
1687	        }?)),
1688	    attribute gradientUnits { "userSpaceOnUse" | "objectBoundingBox" }?,
1689	    (attribute id { xsd:NCName }
1690	     | attribute xml:id { xsd:NCName })?,
1691	    attribute xml:base { xsd:anyURI | xsd:string }?,
1692	    attribute xml:lang { xsd:language? }?,
1693	    attribute class { xsd:NMTOKENS }?,
1694	    attribute role { xsd:string }?,
1695	    attribute rel { xsd:string }?,
1696	    attribute rev { xsd:string }?,
1697	    attribute typeof { xsd:string }?,
1698	    attribute content { xsd:string }?,
1699	    attribute datatype { xsd:string }?,
1700	    attribute resource { xsd:string }?,
1701	    attribute about { xsd:string }?,
1702	    attribute property { xsd:string }?,
1703	    attribute xml:space { "default" | "preserve" }?,
1704	    attribute cx { xsd:string }?,
1705	    attribute cy { xsd:string }?,
1706	    attribute r { xsd:string }?,
1707	    (desc
1708	     | svgTitle)*
1709	  }
1710	\text =
1711	  element text {
1712	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1713	      attribute stroke-opacity { "inherit" | xsd:string }?)
1714	     & (attribute fill { "none" | rfc-color }?,
1715	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1716	        attribute stroke { rfc-color }?,
1717	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1718	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1719	        attribute stroke-linecap {
1720	          "butt" | "round" | "square" | "inherit"
1721	        }?,
1722	        attribute stroke-linejoin {
1723	          "miter" | "round" | "bevel" | "inherit"
1724	        }?,
1725	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1726	        attribute stroke-width { "inherit" | xsd:string }?,
1727	        attribute color { rfc-color }?,
1728	        attribute color-rendering {
1729	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"

1731	        }?)
1732	     & attribute vector-effect {
1733	         "none" | "non-scaling-stroke" | "inherit"
1734	       }?
1735	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1736	        attribute unicode-bidi {
1737	          "normal" | "embed" | "bidi-override" | "inherit"
1738	        }?)
1739	     & (attribute solid-color { rfc-color }?,
1740	        attribute solid-opacity { "inherit" | xsd:string }?)
1741	     & (attribute display-align {
1742	          "auto" | "before" | "center" | "after" | "inherit"
1743	        }?,
1744	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1745	     & (attribute stop-color { rfc-color }?,
1746	        attribute stop-opacity { "inherit" | xsd:string }?)
1747	     & (attribute font-family { "inherit" | xsd:string }?,
1748	        attribute font-size { "inherit" | xsd:string }?,
1749	        attribute font-style {
1750	          "normal" | "italic" | "oblique" | "inherit"
1751	        }?,
1752	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1753	        attribute font-weight {
1754	          "normal"
1755	          | "bold"
1756	          | "bolder"
1757	          | "lighter"
1758	          | "inherit"
1759	        }?,
1760	        attribute text-anchor {
1761	          "start" | "middle" | "end" | "inherit"
1762	        }?,
1763	        attribute text-align {
1764	          "start" | "center" | "end" | "inherit"
1765	        }?)),
1766	    (attribute id { xsd:NCName }
1767	     | attribute xml:id { xsd:NCName })?,
1768	    attribute xml:base { xsd:anyURI | xsd:string }?,
1769	    attribute xml:lang { xsd:language? }?,
1770	    attribute class { xsd:NMTOKENS }?,
1771	    attribute role { xsd:string }?,
1772	    attribute rel { xsd:string }?,
1773	    attribute rev { xsd:string }?,
1774	    attribute typeof { xsd:string }?,
1775	    attribute content { xsd:string }?,
1776	    attribute datatype { xsd:string }?,
1777	    attribute resource { xsd:string }?,
1778	    attribute about { xsd:string }?,
1779	    attribute property { xsd:string }?,
1780	    attribute xml:space { "default" | "preserve" }?,
1781	    attribute requiredFeatures { xsd:string }?,
1782	    attribute requiredExtensions { xsd:string }?,
1783	    attribute requiredFormats { xsd:string }?,
1784	    attribute requiredFonts { xsd:string }?,
1785	    attribute systemLanguage { xsd:string }?,
1786	    attribute transform { xsd:string | "none" }?,
1787	    attribute x { xsd:string }?,
1788	    attribute y { xsd:string }?,
1789	    attribute rotate { xsd:string }?,
1790	    attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
1791	    (desc
1792	     | svgTitle
1793	     | tspan_2
1794	     | text
1795	     | a_2)+
1796	  }
1797	g =
1798	  element g {
1799	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1800	      attribute stroke-opacity { "inherit" | xsd:string }?)
1801	     & (attribute fill { "none" | rfc-color }?,
1802	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1803	        attribute stroke { rfc-color }?,
1804	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1805	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1806	        attribute stroke-linecap {
1807	          "butt" | "round" | "square" | "inherit"
1808	        }?,
1809	        attribute stroke-linejoin {
1810	          "miter" | "round" | "bevel" | "inherit"
1811	        }?,
1812	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1813	        attribute stroke-width { "inherit" | xsd:string }?,
1814	        attribute color { rfc-color }?,
1815	        attribute color-rendering {
1816	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1817	        }?)
1818	     & attribute vector-effect {
1819	         "none" | "non-scaling-stroke" | "inherit"
1820	       }?
1821	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1822	        attribute unicode-bidi {
1823	          "normal" | "embed" | "bidi-override" | "inherit"
1824	        }?)
1825	     & (attribute solid-color { rfc-color }?,
1826	        attribute solid-opacity { "inherit" | xsd:string }?)

1828	     & (attribute display-align {
1829	          "auto" | "before" | "center" | "after" | "inherit"
1830	        }?,
1831	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1832	     & (attribute stop-color { rfc-color }?,
1833	        attribute stop-opacity { "inherit" | xsd:string }?)
1834	     & (attribute font-family { "inherit" | xsd:string }?,
1835	        attribute font-size { "inherit" | xsd:string }?,
1836	        attribute font-style {
1837	          "normal" | "italic" | "oblique" | "inherit"
1838	        }?,
1839	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1840	        attribute font-weight {
1841	          "normal"
1842	          | "bold"
1843	          | "bolder"
1844	          | "lighter"
1845	          | "inherit"
1846	        }?,
1847	        attribute text-anchor {
1848	          "start" | "middle" | "end" | "inherit"
1849	        }?,
1850	        attribute text-align {
1851	          "start" | "center" | "end" | "inherit"
1852	        }?)),
1853	    (attribute id { xsd:NCName }
1854	     | attribute xml:id { xsd:NCName })?,
1855	    attribute xml:base { xsd:anyURI | xsd:string }?,
1856	    attribute xml:lang { xsd:language? }?,
1857	    attribute class { xsd:NMTOKENS }?,
1858	    attribute role { xsd:string }?,
1859	    attribute rel { xsd:string }?,
1860	    attribute rev { xsd:string }?,
1861	    attribute typeof { xsd:string }?,
1862	    attribute content { xsd:string }?,
1863	    attribute datatype { xsd:string }?,
1864	    attribute resource { xsd:string }?,
1865	    attribute about { xsd:string }?,
1866	    attribute property { xsd:string }?,
1867	    attribute xml:space { "default" | "preserve" }?,
1868	    attribute requiredFeatures { xsd:string }?,
1869	    attribute requiredExtensions { xsd:string }?,
1870	    attribute requiredFormats { xsd:string }?,
1871	    attribute requiredFonts { xsd:string }?,
1872	    attribute systemLanguage { xsd:string }?,
1873	    attribute transform { xsd:string | "none" }?,
1874	    attribute style { xsd:string }?,
1875	        # Added to SVG-1.2-RFC (for Inkscape)

1877	    attribute visibility {
1878	      "visible" | "hidden" | "collapse" | "inherit" }?,
1879	        # Added to SVG-1.2-RFC (for LibreOffice)
1880	    (desc
1881	     | svgTitle
1882	     | path
1883	     | rect
1884	     | circle
1885	     | line
1886	     | ellipse
1887	     | polyline
1888	     | polygon
1889	     | solidColor
1890	     | textArea
1891	     | linearGradient
1892	     | radialGradient
1893	     | \text
1894	     | g
1895	     | defs
1896	     | use
1897	     | a)*
1898	  }
1899	defs =
1900	  element defs {
1901	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1902	      attribute stroke-opacity { "inherit" | xsd:string }?)
1903	     & (attribute fill { "none" | rfc-color }?,
1904	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1905	        attribute stroke { rfc-color }?,
1906	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1907	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1908	        attribute stroke-linecap {
1909	          "butt" | "round" | "square" | "inherit"
1910	        }?,
1911	        attribute stroke-linejoin {
1912	          "miter" | "round" | "bevel" | "inherit"
1913	        }?,
1914	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
1915	        attribute stroke-width { "inherit" | xsd:string }?,
1916	        attribute color { rfc-color }?,
1917	        attribute color-rendering {
1918	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
1919	        }?)
1920	     & attribute vector-effect {
1921	         "none" | "non-scaling-stroke" | "inherit"
1922	       }?
1923	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
1924	        attribute unicode-bidi {
1925	          "normal" | "embed" | "bidi-override" | "inherit"
1926	        }?)
1927	     & (attribute solid-color { rfc-color }?,
1928	        attribute solid-opacity { "inherit" | xsd:string }?)
1929	     & (attribute display-align {
1930	          "auto" | "before" | "center" | "after" | "inherit"
1931	        }?,
1932	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
1933	     & (attribute stop-color { rfc-color }?,
1934	        attribute stop-opacity { "inherit" | xsd:string }?)
1935	     & (attribute font-family { "inherit" | xsd:string }?,
1936	        attribute font-size { "inherit" | xsd:string }?,
1937	        attribute font-style {
1938	          "normal" | "italic" | "oblique" | "inherit"
1939	        }?,
1940	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
1941	        attribute font-weight {
1942	          "normal"
1943	          | "bold"
1944	          | "bolder"
1945	          | "lighter"
1946	          | "inherit"
1947	        }?,
1948	        attribute text-anchor {
1949	          "start" | "middle" | "end" | "inherit"
1950	        }?,
1951	        attribute text-align {
1952	          "start" | "center" | "end" | "inherit"
1953	        }?)),
1954	    (attribute id { xsd:NCName }
1955	     | attribute xml:id { xsd:NCName })?,
1956	    attribute xml:base { xsd:anyURI | xsd:string }?,
1957	    attribute xml:lang { xsd:language? }?,
1958	    attribute class { xsd:NMTOKENS }?,
1959	    attribute role { xsd:string }?,
1960	    attribute rel { xsd:string }?,
1961	    attribute rev { xsd:string }?,
1962	    attribute typeof { xsd:string }?,
1963	    attribute content { xsd:string }?,
1964	    attribute datatype { xsd:string }?,
1965	    attribute resource { xsd:string }?,
1966	    attribute about { xsd:string }?,
1967	    attribute property { xsd:string }?,
1968	    attribute xml:space { "default" | "preserve" }?,
1969	    (desc
1970	     | svgTitle
1971	     | path
1972	     | rect
1973	     | circle
1974	     | line
1975	     | ellipse
1976	     | polyline
1977	     | polygon
1978	     | solidColor
1979	     | textArea
1980	     | linearGradient
1981	     | radialGradient
1982	     | \text
1983	     | g
1984	     | defs
1985	     | use
1986	     | a)*
1987	  }
1988	use =
1989	  element use {
1990	    ((attribute fill-opacity { "inherit" | xsd:string }?,
1991	      attribute stroke-opacity { "inherit" | xsd:string }?)
1992	     & (attribute fill { "none" | rfc-color }?,
1993	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
1994	        attribute stroke { rfc-color }?,
1995	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
1996	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
1997	        attribute stroke-linecap {
1998	          "butt" | "round" | "square" | "inherit"
1999	        }?,
2000	        attribute stroke-linejoin {
2001	          "miter" | "round" | "bevel" | "inherit"
2002	        }?,
2003	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
2004	        attribute stroke-width { "inherit" | xsd:string }?,
2005	        attribute color { rfc-color }?,
2006	        attribute color-rendering {
2007	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
2008	        }?)
2009	     & attribute vector-effect {
2010	         "none" | "non-scaling-stroke" | "inherit"
2011	       }?
2012	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
2013	        attribute unicode-bidi {
2014	          "normal" | "embed" | "bidi-override" | "inherit"
2015	        }?)
2016	     & (attribute solid-color { rfc-color }?,
2017	        attribute solid-opacity { "inherit" | xsd:string }?)
2018	     & (attribute display-align {
2019	          "auto" | "before" | "center" | "after" | "inherit"
2020	        }?,
2021	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
2022	     & (attribute stop-color { rfc-color }?,
2023	        attribute stop-opacity { "inherit" | xsd:string }?)
2024	     & (attribute font-family { "inherit" | xsd:string }?,
2025	        attribute font-size { "inherit" | xsd:string }?,
2026	        attribute font-style {
2027	          "normal" | "italic" | "oblique" | "inherit"
2028	        }?,
2029	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
2030	        attribute font-weight {
2031	          "normal"
2032	          | "bold"
2033	          | "bolder"
2034	          | "lighter"
2035	          | "inherit"
2036	        }?,
2037	        attribute text-anchor {
2038	          "start" | "middle" | "end" | "inherit"
2039	        }?,
2040	        attribute text-align {
2041	          "start" | "center" | "end" | "inherit"
2042	        }?)),
2043	    (attribute id { xsd:NCName }
2044	     | attribute xml:id { xsd:NCName })?,
2045	    attribute xml:base { xsd:anyURI | xsd:string }?,
2046	    attribute xml:lang { xsd:language? }?,
2047	    attribute class { xsd:NMTOKENS }?,
2048	    attribute role { xsd:string }?,
2049	    attribute rel { xsd:string }?,
2050	    attribute rev { xsd:string }?,
2051	    attribute typeof { xsd:string }?,
2052	    attribute content { xsd:string }?,
2053	    attribute datatype { xsd:string }?,
2054	    attribute resource { xsd:string }?,
2055	    attribute about { xsd:string }?,
2056	    attribute property { xsd:string }?,
2057	    attribute xml:space { "default" | "preserve" }?,
2058	    attribute requiredFeatures { xsd:string }?,
2059	    attribute requiredExtensions { xsd:string }?,
2060	    attribute requiredFormats { xsd:string }?,
2061	    attribute requiredFonts { xsd:string }?,
2062	    attribute systemLanguage { xsd:string }?,
2063	    attribute transform { xsd:string | "none" }?,
2064	    attribute ns1:show { "embed" }?,
2065	    attribute ns1:actuate { "onLoad" }?,
2066	    attribute ns1:type { "simple" }?,
2067	    attribute ns1:role { xsd:anyURI | xsd:string }?,
2068	    attribute ns1:arcrole { xsd:anyURI | xsd:string }?,
2069	    attribute ns1:title { text }?,
2070	    attribute ns1:href { xsd:anyURI | xsd:string }?,
2071	    attribute x { xsd:string }?,
2072	    attribute y { xsd:string }?,
2073	    (desc
2074	     | svgTitle)*
2075	  }
2076	a =
2077	  element a {
2078	    (attribute id { xsd:NCName }
2079	     | attribute xml:id { xsd:NCName })?,
2080	    attribute xml:base { xsd:anyURI | xsd:string }?,
2081	    attribute xml:lang { xsd:language? }?,
2082	    attribute class { xsd:NMTOKENS }?,
2083	    attribute role { xsd:string }?,
2084	    attribute rel { xsd:string }?,
2085	    attribute rev { xsd:string }?,
2086	    attribute typeof { xsd:string }?,
2087	    attribute content { xsd:string }?,
2088	    attribute datatype { xsd:string }?,
2089	    attribute resource { xsd:string }?,
2090	    attribute about { xsd:string }?,
2091	    attribute property { xsd:string }?,
2092	    attribute xml:space { "default" | "preserve" }?,
2093	    attribute requiredFeatures { xsd:string }?,
2094	    attribute requiredExtensions { xsd:string }?,
2095	    attribute requiredFormats { xsd:string }?,
2096	    attribute requiredFonts { xsd:string }?,
2097	    attribute systemLanguage { xsd:string }?,
2098	    ((attribute fill-opacity { "inherit" | xsd:string }?,
2099	      attribute stroke-opacity { "inherit" | xsd:string }?)
2100	     & (attribute fill { "none" | rfc-color }?,
2101	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
2102	        attribute stroke { rfc-color }?,
2103	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
2104	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
2105	        attribute stroke-linecap {
2106	          "butt" | "round" | "square" | "inherit"
2107	        }?,
2108	        attribute stroke-linejoin {
2109	          "miter" | "round" | "bevel" | "inherit"
2110	        }?,
2111	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
2112	        attribute stroke-width { "inherit" | xsd:string }?,
2113	        attribute color { rfc-color }?,
2114	        attribute color-rendering {
2115	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
2116	        }?)

2118	     & attribute vector-effect {
2119	         "none" | "non-scaling-stroke" | "inherit"
2120	       }?
2121	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
2122	        attribute unicode-bidi {
2123	          "normal" | "embed" | "bidi-override" | "inherit"
2124	        }?)
2125	     & (attribute solid-color { rfc-color }?,
2126	        attribute solid-opacity { "inherit" | xsd:string }?)
2127	     & (attribute display-align {
2128	          "auto" | "before" | "center" | "after" | "inherit"
2129	        }?,
2130	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
2131	     & (attribute stop-color { rfc-color }?,
2132	        attribute stop-opacity { "inherit" | xsd:string }?)
2133	     & (attribute font-family { "inherit" | xsd:string }?,
2134	        attribute font-size { "inherit" | xsd:string }?,
2135	        attribute font-style {
2136	          "normal" | "italic" | "oblique" | "inherit"
2137	        }?,
2138	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
2139	        attribute font-weight {
2140	          "normal"
2141	          | "bold"
2142	          | "bolder"
2143	          | "lighter"
2144	          | "inherit"
2145	        }?,
2146	        attribute text-anchor {
2147	          "start" | "middle" | "end" | "inherit"
2148	        }?,
2149	        attribute text-align {
2150	          "start" | "center" | "end" | "inherit"
2151	        }?)),
2152	    attribute transform { xsd:string | "none" }?,
2153	    attribute ns1:show { "new" | "replace" }?,
2154	    attribute ns1:actuate { "onRequest" }?,
2155	    attribute ns1:type { "simple" }?,
2156	    attribute ns1:role { xsd:anyURI | xsd:string }?,
2157	    attribute ns1:arcrole { xsd:anyURI | xsd:string }?,
2158	    attribute ns1:title { text }?,
2159	    attribute ns1:href { xsd:anyURI | xsd:string }?,
2160	    attribute target {
2161	      "_replace" | "_self" | "_parent" | "_top" | "_blank" | xsd:Name
2162	    }?,
2163	    (desc
2164	     | svgTitle
2165	     | path
2166	     | rect
2167	     | circle
2168	     | line
2169	     | ellipse
2170	     | polyline
2171	     | polygon
2172	     | solidColor
2173	     | textArea
2174	     | linearGradient
2175	     | radialGradient
2176	     | \text
2177	     | g
2178	     | defs
2179	     | use)*
2180	  }
2181	stop =
2182	  element stop {
2183	    ((attribute fill-opacity { "inherit" | xsd:string }?,
2184	      attribute stroke-opacity { "inherit" | xsd:string }?)
2185	     & (attribute fill { "inherit" | xsd:string }?,
2186	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
2187	        attribute stroke { "inherit" | xsd:string }?,
2188	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
2189	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
2190	        attribute stroke-linecap {
2191	          "butt" | "round" | "square" | "inherit"
2192	        }?,
2193	        attribute stroke-linejoin {
2194	          "miter" | "round" | "bevel" | "inherit"
2195	        }?,
2196	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
2197	        attribute stroke-width { "inherit" | xsd:string }?,
2198	        attribute color { rfc-color }?,
2199	        attribute color-rendering {
2200	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
2201	        }?)
2202	     & attribute vector-effect {
2203	         "none" | "non-scaling-stroke" | "inherit"
2204	       }?
2205	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
2206	        attribute unicode-bidi {
2207	          "normal" | "embed" | "bidi-override" | "inherit"
2208	        }?)
2209	     & (attribute solid-color { "inherit" | xsd:string }?,
2210	        attribute solid-opacity { "inherit" | xsd:string }?)
2211	     & (attribute display-align {
2212	          "auto" | "before" | "center" | "after" | "inherit"
2213	        }?,
2214	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
2215	     & (attribute stop-color { "inherit" | xsd:string }?,
2216	        attribute stop-opacity { "inherit" | xsd:string }?)
2217	     & (attribute font-family { "inherit" | xsd:string }?,
2218	        attribute font-size { "inherit" | xsd:string }?,
2219	        attribute font-style {
2220	          "normal" | "italic" | "oblique" | "inherit"
2221	        }?,
2222	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
2223	        attribute font-weight {
2224	          "normal"
2225	          | "bold"
2226	          | "bolder"
2227	          | "lighter"
2228	          | "inherit"
2229	        }?,
2230	        attribute text-anchor {
2231	          "start" | "middle" | "end" | "inherit"
2232	        }?,
2233	        attribute text-align {
2234	          "start" | "center" | "end" | "inherit"
2235	        }?)),
2236	    (attribute id { xsd:NCName }
2237	     | attribute xml:id { xsd:NCName })?,
2238	    attribute xml:base { xsd:anyURI | xsd:string }?,
2239	    attribute xml:lang { xsd:language? }?,
2240	    attribute class { xsd:NMTOKENS }?,
2241	    attribute role { xsd:string }?,
2242	    attribute rel { xsd:string }?,
2243	    attribute rev { xsd:string }?,
2244	    attribute typeof { xsd:string }?,
2245	    attribute content { xsd:string }?,
2246	    attribute datatype { xsd:string }?,
2247	    attribute resource { xsd:string }?,
2248	    attribute about { xsd:string }?,
2249	    attribute property { xsd:string }?,
2250	    attribute xml:space { "default" | "preserve" }?,
2251	    attribute offset { xsd:string }?,
2252	    (desc
2253	     | svgTitle)*
2254	  }
2255	tspan =
2256	  element tspan {
2257	    ((attribute fill-opacity { "inherit" | xsd:string }?,
2258	      attribute stroke-opacity { "inherit" | xsd:string }?)
2259	     & (attribute fill { "none" | rfc-color }?,
2260	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
2261	        attribute stroke { rfc-color }?,
2262	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
2263	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
2264	        attribute stroke-linecap {
2265	          "butt" | "round" | "square" | "inherit"
2266	        }?,
2267	        attribute stroke-linejoin {
2268	          "miter" | "round" | "bevel" | "inherit"
2269	        }?,
2270	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
2271	        attribute stroke-width { "inherit" | xsd:string }?,
2272	        attribute color { rfc-color }?,
2273	        attribute color-rendering {
2274	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
2275	        }?)
2276	     & attribute vector-effect {
2277	         "none" | "non-scaling-stroke" | "inherit"
2278	       }?
2279	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
2280	        attribute unicode-bidi {
2281	          "normal" | "embed" | "bidi-override" | "inherit"
2282	        }?)
2283	     & (attribute solid-color { rfc-color }?,
2284	        attribute solid-opacity { "inherit" | xsd:string }?)
2285	     & (attribute display-align {
2286	          "auto" | "before" | "center" | "after" | "inherit"
2287	        }?,
2288	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
2289	     & (attribute stop-color { rfc-color }?,
2290	        attribute stop-opacity { "inherit" | xsd:string }?)
2291	     & (attribute font-family { "inherit" | xsd:string }?,
2292	        attribute font-size { "inherit" | xsd:string }?,
2293	        attribute font-style {
2294	          "normal" | "italic" | "oblique" | "inherit"
2295	        }?,
2296	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
2297	        attribute font-weight {
2298	          "normal"
2299	          | "bold"
2300	          | "bolder"
2301	          | "lighter"
2302	          | "inherit"
2303	        }?,
2304	        attribute text-anchor {
2305	          "start" | "middle" | "end" | "inherit"
2306	        }?,
2307	        attribute text-align {
2308	          "start" | "center" | "end" | "inherit"
2309	        }?)),

2311	    (attribute id { xsd:NCName }
2312	     | attribute xml:id { xsd:NCName })?,
2313	    attribute xml:base { xsd:anyURI | xsd:string }?,
2314	    attribute xml:lang { xsd:language? }?,
2315	    attribute class { xsd:NMTOKENS }?,
2316	    attribute role { xsd:string }?,
2317	    attribute rel { xsd:string }?,
2318	    attribute rev { xsd:string }?,
2319	    attribute typeof { xsd:string }?,
2320	    attribute content { xsd:string }?,
2321	    attribute datatype { xsd:string }?,
2322	    attribute resource { xsd:string }?,
2323	    attribute about { xsd:string }?,
2324	    attribute property { xsd:string }?,
2325	    attribute xml:space { "default" | "preserve" }?,
2326	    attribute requiredFeatures { xsd:string }?,
2327	    attribute requiredExtensions { xsd:string }?,
2328	    attribute requiredFormats { xsd:string }?,
2329	    attribute requiredFonts { xsd:string }?,
2330	    attribute systemLanguage { xsd:string }?,
2331	    attribute x { xsd:string }?,  # For SVG-1.2-RFC
2332	    attribute y { xsd:string }?,
2333	    (tbreak
2334	     | desc
2335	     | svgTitle
2336	     | tspan_2
2337	     | text
2338	     | a_2)+
2339	  }
2340	tspan_2 =
2341	  element tspan {
2342	    ((attribute fill-opacity { "inherit" | xsd:string }?,
2343	      attribute stroke-opacity { "inherit" | xsd:string }?)
2344	     & (attribute fill { "none" | rfc-color }?,
2345	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
2346	        attribute stroke { rfc-color }?,
2347	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
2348	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
2349	        attribute stroke-linecap {
2350	          "butt" | "round" | "square" | "inherit"
2351	        }?,
2352	        attribute stroke-linejoin {
2353	          "miter" | "round" | "bevel" | "inherit"
2354	        }?,
2355	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
2356	        attribute stroke-width { "inherit" | xsd:string }?,
2357	        attribute color { rfc-color }?,
2358	        attribute color-rendering {
2359	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
2360	        }?)
2361	     & attribute vector-effect {
2362	         "none" | "non-scaling-stroke" | "inherit"
2363	       }?
2364	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
2365	        attribute unicode-bidi {
2366	          "normal" | "embed" | "bidi-override" | "inherit"
2367	        }?)
2368	     & (attribute solid-color { rfc-color }?,
2369	        attribute solid-opacity { "inherit" | xsd:string }?)
2370	     & (attribute display-align {
2371	          "auto" | "before" | "center" | "after" | "inherit"
2372	        }?,
2373	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
2374	     & (attribute stop-color { rfc-color }?,
2375	        attribute stop-opacity { "inherit" | xsd:string }?)
2376	     & (attribute font-family { "inherit" | xsd:string }?,
2377	        attribute font-size { "inherit" | xsd:string }?,
2378	        attribute font-style {
2379	          "normal" | "italic" | "oblique" | "inherit"
2380	        }?,
2381	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
2382	        attribute font-weight {
2383	          "normal"
2384	          | "bold"
2385	          | "bolder"
2386	          | "lighter"
2387	          | "inherit"
2388	        }?,
2389	        attribute text-anchor {
2390	          "start" | "middle" | "end" | "inherit"
2391	        }?,
2392	        attribute text-align {
2393	          "start" | "center" | "end" | "inherit"
2394	        }?)),
2395	    (attribute id { xsd:NCName }
2396	     | attribute xml:id { xsd:NCName })?,
2397	    attribute xml:base { xsd:anyURI | xsd:string }?,
2398	    attribute xml:lang { xsd:language? }?,
2399	    attribute class { xsd:NMTOKENS }?,
2400	    attribute role { xsd:string }?,
2401	    attribute rel { xsd:string }?,
2402	    attribute rev { xsd:string }?,
2403	    attribute typeof { xsd:string }?,
2404	    attribute content { xsd:string }?,
2405	    attribute datatype { xsd:string }?,
2406	    attribute resource { xsd:string }?,
2407	    attribute about { xsd:string }?,
2408	    attribute property { xsd:string }?,
2409	    attribute xml:space { "default" | "preserve" }?,
2410	    attribute requiredFeatures { xsd:string }?,
2411	    attribute requiredExtensions { xsd:string }?,
2412	    attribute requiredFormats { xsd:string }?,
2413	    attribute requiredFonts { xsd:string }?,
2414	    attribute systemLanguage { xsd:string }?,
2415	    attribute x { xsd:string }?,  # For SVG-1.2-RFC
2416	    attribute y { xsd:string }?,
2417	    (desc
2418	     | svgTitle
2419	     | tspan_2
2420	     | text
2421	     | a_2)+
2422	  }
2423	a_2 =
2424	  element a {
2425	    (attribute id { xsd:NCName }
2426	     | attribute xml:id { xsd:NCName })?,
2427	    attribute xml:base { xsd:anyURI | xsd:string }?,
2428	    attribute xml:lang { xsd:language? }?,
2429	    attribute class { xsd:NMTOKENS }?,
2430	    attribute role { xsd:string }?,
2431	    attribute rel { xsd:string }?,
2432	    attribute rev { xsd:string }?,
2433	    attribute typeof { xsd:string }?,
2434	    attribute content { xsd:string }?,
2435	    attribute datatype { xsd:string }?,
2436	    attribute resource { xsd:string }?,
2437	    attribute about { xsd:string }?,
2438	    attribute property { xsd:string }?,
2439	    attribute xml:space { "default" | "preserve" }?,
2440	    attribute requiredFeatures { xsd:string }?,
2441	    attribute requiredExtensions { xsd:string }?,
2442	    attribute requiredFormats { xsd:string }?,
2443	    attribute requiredFonts { xsd:string }?,
2444	    attribute systemLanguage { xsd:string }?,
2445	    ((attribute fill-opacity { "inherit" | xsd:string }?,
2446	      attribute stroke-opacity { "inherit" | xsd:string }?)
2447	     & (attribute fill { "none" | rfc-color }?,
2448	        attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
2449	        attribute stroke { rfc-color }?,
2450	        attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
2451	        attribute stroke-dashoffset { "inherit" | xsd:string }?,
2452	        attribute stroke-linecap {
2453	          "butt" | "round" | "square" | "inherit"
2454	        }?,
2455	        attribute stroke-linejoin {
2456	          "miter" | "round" | "bevel" | "inherit"
2457	        }?,
2458	        attribute stroke-miterlimit { "inherit" | xsd:string }?,
2459	        attribute stroke-width { "inherit" | xsd:string }?,
2460	        attribute color { rfc-color }?,
2461	        attribute color-rendering {
2462	          "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
2463	        }?)
2464	     & attribute vector-effect {
2465	         "none" | "non-scaling-stroke" | "inherit"
2466	       }?
2467	     & (attribute direction { "ltr" | "rtl" | "inherit" }?,
2468	        attribute unicode-bidi {
2469	          "normal" | "embed" | "bidi-override" | "inherit"
2470	        }?)
2471	     & (attribute solid-color { rfc-color }?,
2472	        attribute solid-opacity { "inherit" | xsd:string }?)
2473	     & (attribute display-align {
2474	          "auto" | "before" | "center" | "after" | "inherit"
2475	        }?,
2476	        attribute line-increment { "auto" | "inherit" | xsd:string }?)
2477	     & (attribute stop-color { rfc-color }?,
2478	        attribute stop-opacity { "inherit" | xsd:string }?)
2479	     & (attribute font-family { "inherit" | xsd:string }?,
2480	        attribute font-size { "inherit" | xsd:string }?,
2481	        attribute font-style {
2482	          "normal" | "italic" | "oblique" | "inherit"
2483	        }?,
2484	        attribute font-variant { "normal" | "small-caps" | "inherit" }?,
2485	        attribute font-weight {
2486	          "normal"
2487	          | "bold"
2488	          | "bolder"
2489	          | "lighter"
2490	          | "inherit"
2491	        }?,
2492	        attribute text-anchor {
2493	          "start" | "middle" | "end" | "inherit"
2494	        }?,
2495	        attribute text-align {
2496	          "start" | "center" | "end" | "inherit"
2497	        }?)),
2498	    attribute transform { xsd:string | "none" }?,
2499	    attribute ns1:show { "new" | "replace" }?,
2500	    attribute ns1:actuate { "onRequest" }?,
2501	    attribute ns1:type { "simple" }?,
2502	    attribute ns1:role { xsd:anyURI | xsd:string }?,
2503	    attribute ns1:arcrole { xsd:anyURI | xsd:string }?,
2504	    attribute ns1:title { text }?,
2505	    attribute ns1:href { xsd:anyURI | xsd:string }?,
2506	    attribute target {
2507	      "_replace" | "_self" | "_parent" | "_top" | "_blank" | xsd:Name
2508	    }?,
2509	    (desc
2510	     | svgTitle
2511	     | tspan_2
2512	     | text)+
2513	  }
2514	tbreak =
2515	  element tbreak {
2516	    (attribute id { xsd:NCName }
2517	     | attribute xml:id { xsd:NCName })?,
2518	    attribute xml:base { xsd:anyURI | xsd:string }?,
2519	    attribute xml:lang { xsd:language? }?,
2520	    attribute class { xsd:NMTOKENS }?,
2521	    attribute role { xsd:string }?,
2522	    attribute rel { xsd:string }?,
2523	    attribute rev { xsd:string }?,
2524	    attribute typeof { xsd:string }?,
2525	    attribute content { xsd:string }?,
2526	    attribute datatype { xsd:string }?,
2527	    attribute resource { xsd:string }?,
2528	    attribute about { xsd:string }?,
2529	    attribute property { xsd:string }?,
2530	    attribute xml:space { "default" | "preserve" }?,
2531	    attribute requiredFeatures { xsd:string }?,
2532	    attribute requiredExtensions { xsd:string }?,
2533	    attribute requiredFormats { xsd:string }?,
2534	    attribute requiredFonts { xsd:string }?,
2535	    attribute systemLanguage { xsd:string }?
2536	  }

2538	#---  End of SVG 1.2 RFC rnc schema

2540	Authors' Addresses

2542	   Nevil Brownlee
2543	   The University of Auckland

2545	   Email: n.brownlee@auckland.ac.nz

2547	   Internet Architecture Board

2549	   Email: iab@iab.org