GENWiki

Premier IT Outsourcing and Support Services within the UK

User Tools

Site Tools


rfc:rfc7996

Internet Architecture Board (IAB) N. Brownlee Request for Comments: 7996 The University of Auckland Category: Informational December 2016 ISSN: 2070-1721

                 SVG Drawings for RFCs: SVG 1.2 RFC

Abstract

 This document specifies SVG 1.2 RFC -- an SVG profile for use in
 diagrams that may appear in RFCs -- and considers some of the issues
 concerning the creation and use of such diagrams.

Status of This Memo

 This document is not an Internet Standards Track specification; it is
 published for informational purposes.
 This document is a product of the Internet Architecture Board (IAB)
 and represents information that the IAB has deemed valuable to
 provide for permanent record.  It represents the consensus of the
 Internet Architecture Board (IAB).  Documents approved for
 publication by the IAB are not a candidate for any level of Internet
 Standard; see Section 2 of RFC 7841.
 Information about the current status of this document, any errata,
 and how to provide feedback on it may be obtained at
 http://www.rfc-editor.org/info/rfc7996.

Copyright Notice

 Copyright (c) 2016 IETF Trust and the persons identified as the
 document authors.  All rights reserved.
 This document is subject to BCP 78 and the IETF Trust's Legal
 Provisions Relating to IETF Documents
 (http://trustee.ietf.org/license-info) in effect on the date of
 publication of this document.  Please review these documents
 carefully, as they describe your rights and restrictions with respect
 to this document.

Brownlee Informational [Page 1] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

Table of Contents

 1. Introduction ....................................................2
 2. SVG 1.2 RFC: An SVG Profile for RFCs ............................3
    2.1. Elements, Properties, and Attributes Allowed in
         SVG 1.2 RFC ................................................4
 3. How to Create SVG Drawings ......................................7
 4. Accessibility Considerations ....................................7
 5. Examples of Diagrams Common in RFCs .............................8
    5.1. Packet Layout Diagrams .....................................8
    5.2. Sequence Diagrams (1) ......................................8
    5.3. Sequence Diagrams (2) ......................................8
 6. Security Considerations .........................................8
 7. References ......................................................9
    7.1. Normative References .......................................9
    7.2. Informative References .....................................9
 Appendix A. RELAX NG Compact (RNC) Schema for SVG 1.2 RFC .........11
 IAB Members at the Time of Approval ...............................53
 Acknowledgements ..................................................53
 Author's Address ..................................................53

1. Introduction

 Over the last few years, the RFC Editor has worked with the Internet
 community to develop specifications for changes in the format of
 RFCs.  An outline of the resulting specifications was published as
 [RFC6949] in May 2013.  Since then, a Design Team has been working
 with the RFC Editor to flesh out those specifications.  One aspect of
 the changes is to allow line drawings in RFCs; [RFC6949] says
    Graphics may include ASCII art and a more complex form to be
    defined, such as SVG line art [SVG].  Color and grayscale will not
    be accepted.  RFCs must correctly display in monochromatic black-
    and-white to allow for monochrome displays, black-and-white
    printing, and support for visual disabilities.
 SVG (Scalable Vector Graphics) has been developed by W3C, the World
 Wide Web Consortium; its current standard is SVG 1.1 Full
 [W3C.REC-SVG11-20110816].  This document defines SVG 1.2 RFC, an SVG
 profile (i.e., a subset of SVG) that is suitable for RFC line
 drawings.
 Note that in RFCs, the text provides normative descriptions of
 protocols, systems, etc.  Diagrams may be used to help explain
 concepts more clearly, but they provide supporting details and should
 not be considered to be complete specifications in themselves.

Brownlee Informational [Page 2] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

 The details (particularly any vocabularies) described in this
 document are expected to change based on experience gained in
 implementing the new publication toolsets.  Revised documents will be
 published capturing those changes as the toolsets are completed.
 Other implementers must not expect those changes to remain backwards-
 compatible with the details described in this document.

2. SVG 1.2 RFC: An SVG Profile for RFCs

 As a starting point for SVG 1.2 RFC, the Design Team decided to use
 SVG Tiny 1.2 (also referred to as "SVG 1.2 Tiny")
 [W3C.REC-SVGTiny12-20081222].  SVG 1.2 Tiny is an SVG subset intended
 to be implemented on small, mobile devices such as cell phones and
 smartphones.  That should allow RFCs to be rendered well on such
 devices, especially those that have small screens.  However, RFCs are
 self-contained documents that do not change once they are published.
 The use of SVG drawings in RFCs is intended to allow authors to
 create drawings that are simple to produce and are easier to
 understand than our traditional "ASCII art" ones.  In short, we are
 also trying to improve access to the content in RFCs, so SVG drawings
 need to be kept as simple as possible.
 Appendix A (below) provides a complete RELAX NG Compact (RNC) schema
 [RNG-HOME] for SVG 1.2 RFC.  It is derived from the SVG 1.2 schema,
 and is the formal definition of SVG 1.2 RFC.  The remainder of this
 section gives a simplified -- i.e., easier to read and understand --
 overview of SVG 1.2 RFC.
 SVG can provide a complete User Interface, but within RFCs, all we
 need are simple diagrams that do not change once the RFC is
 published.  Therefore, SVG 1.2 RFC does not allow anything from the
 following sections in SVG Tiny 1.2 [W3C.REC-SVGTiny12-20081222]:
 12  Multimedia
 13  Interactivity
 15  Scripting
 16  Animation
 18  Metadata
 19  Extensibility
 Note that SVG Tiny 1.2 elements may have many properties or
 attributes that are needed to support aspects of the above sections.
 Those are not allowed in SVG 1.2 RFC.

Brownlee Informational [Page 3] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

 We now consider these other sections in SVG Tiny 1.2
 [W3C.REC-SVGTiny12-20081222]:
  9 Basic Shapes
 10 Text
      Everything in this section is allowed in SVG 1.2 RFC.
 11 Painting: Filling, Stroking, Colors and Paint Servers
      Anything relating to 'color' is not allowed in SVG 1.2 RFC;
      everything else is allowed.  This is a requirement documented in
      [RFC6949].
 14 Linking
      SVG Tiny 1.2 allows Internationalized Resource Identifiers
      (IRIs) in references.  In SVG 1.2 RFC, such links must be ASCII
      only.  That should not cause problems, since one can just use
      the URI form of any IRI.  Authors should try to use links only
      to URIs that are long-term stable.
 17 Fonts
      SVG 1.2 RFC only allows 'serif', 'sans-serif', and 'monospace'
      generic font families from the WebFonts facility, described in
      Section 15 ("Fonts") of the W3C Cascading Style Sheets (CSS) 2.1
      document [W3C.REC-CSS2-20110607].  In particular, the SVG 'font'
      element is not allowed.

2.1. Elements, Properties, and Attributes Allowed in SVG 1.2 RFC

 This section discusses elements, properties, and attributes selected
 for SVG 1.2 RFC from [W3C.REC-SVGTiny12-20081222].
 In the list below, elements and properties are listed on the
 left, and their allowed values are given in parentheses on the
 right.
 <color> is the list of allowed colors, a black-and-white
         subset of the SVG color names.
 <style> is a set of CSS attributes that are commonly used (by SVG
         drawing applications).  They are not part of SVG Tiny 1.2
         but are included here for compatibility.  Note that
  1. There is no guarantee that any renderer will implement

all the CSS attributes a drawing application may use.

  1. Authors will need to consider the compatibility of their

drawings with rendering devices.

Brownlee Informational [Page 4] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

 Elements:
   svg              (version=1.2, baseProfile=tiny, width, viewBox,
                     preserveAspectRatio, snapshotTime, height,
                     id, role)
   g                (label, class, id, role, fill, <style>, transform)
   defs             (id, role, fill)
   title            (id, role)
   desc             (id, role)
   a                (id, role, fill, transform)
   use              (x, y, href, xlink:href, id, role,
                     fill, transform)
   rect             (x, y, width, height, rx, ry, stroke-miterlimit,
                     id, role, fill, <style>, transform)
   circle           (cx, cy, r, id, role, fill, <style>, transform)
   ellipse          (cx, cy, rx, ry, id, role,
                     fill, <style>, transform)
   line             (x1, y1, x2, y2, id, role, fill, transform)
   polyline         (points, id, role, fill, transform)
   polygon          (points, id, role, fill, <style>, transform)
   text             (x, y, rotate, space, id, role, fill, <style>,
                     transform)
   tspan            (x, y, id, role, fill)
   textArea         (x, y, width, height, auto, id, role, fill,
                     transform)
   tbreak           (id, role)
   solidColor       (id, role, fill)
   linearGradient   (gradientUnits, x1, y1, x2, y2, id, role, fill)
   radialGradient   (gradientUnits, cx, cy, r, id, role, fill)
   stop             (id, role, fill)
   path             (d, pathLength, stroke-miterlimit,
                     id, role, fill, <style>, transform)
 Properties: (most allow "inherit" as a value)
   <style>          (font-family, font-weight, font-style,
                     font-variant, direction, unicode-bidi,
                     text-anchor, fill, fill-rule)
   <color>          (black, white, #000000, #ffffff, #FFFFFF)
   stroke           (<color>, none, currentColor)
   stroke-width
   stroke-linecap   (butt, round, square)
   stroke-linejoin  (miter, round, bevel)
   stroke-miterlimit

Brownlee Informational [Page 5] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

   stroke-dasharray
   stroke-dashoffset
   stroke-opacity
   vector-effect    (non-scaling-stroke, none)
   viewport-fill    (none, currentColor)
   viewport-fill-opacity
   display          (inline, block, list-item, run-in, compact,
                     marker, table, inline-table, table-row-group,
                     table-header-group, table-footer-group,
                     table-row, table-column-group,
                     table-column, table-cell, table-caption,
                     none)
   visibility       (visible, hidden, collapse)
   color-rendering  (auto, optimizeSpeed, optimizeQuality)
   shape-rendering  (auto, optimizeSpeed, crispEdges,
                     geometricPrecision)
   text-rendering   (auto, optimizeSpeed, optimizeLegibility,
                     geometricPrecision)
   buffered-rendering  (auto, dynamic, static)
   opacity
   solid-opacity
   solid-color    (currentColor, <color>)
   color          (currentColor, <color>)
   stop-color     (currentColor, <color>)
   stop-opacity
   line-increment (auto)
   text-align     (start, end, center)
   display-align  (auto, before, center, after)
   font-size
   font-family    (serif, sans-serif, monospace)
   font-weight    (normal, bold, bolder, lighter)
   font-style     (normal, italic, oblique)
   font-variant   (normal, small-caps)
   direction      (ltr, rtl)
   unicode-bidi   (normal, embed, bidi-override)
   text-anchor    (start, middle, end)
   fill           (none, <color>)
   fill-rule      (nonzero, evenodd)
   fill-opacity

Brownlee Informational [Page 6] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

3. How to Create SVG Drawings

 Many drawing packages can be used to create SVG drawings -- for
 example, Open Source packages Inkscape and Dia.  Be aware that such
 packages may use SVG elements or attributes that are not allowed in
 SVG 1.2 RFC.
 o  For example, the 'marker' attribute is often used to place symbols
    such as arrowheads on lines, but 'marker' is not allowed in
    SVG 1.2 Tiny or SVG 1.2 RFC.  In such cases, one has to draw the
    arrowhead in another, simpler way.
 o  SVG clip paths are used to define a shape; objects outside that
    shape become invisible.  The 'clipPath' element is not allowed in
    SVG 1.2 Tiny or SVG 1.2 RFC.
 Diagrams produced with these packages may contain elements, their
 attributes or properties, or values of attributes or properties that
 are not allowed in SVG 1.2 RFC.  We will need to provide a tool to
 either (1) strip out anything that is not allowed in SVG 1.2 RFC or
 (2) replace disallowed values (e.g., replace 'Sans' with 'sans-serif'
 as an allowed value for 'font-family').  Experience with a simple
 test version of a tool for this has shown that such deletion and
 replacement can be effective for making SVG files from drawing
 packages conform to SVG 1.2 RFC, without visibly changing the
 diagrams they produce.
 The tool described above can also be used by authors simply to check
 that their diagrams conform to SVG 1.2 RFC.  To help with this, if
 visible changes do occur, the tool should produce a list of
 non-allowed keywords and the context in which they were found.
 To include a diagram in an RFC, the xml2rfc (v3) tool will need to
 provide a way to include SVG drawings in Internet-Drafts, as
 described in Section 2.5 of [RFC7991].

4. Accessibility Considerations

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

Brownlee Informational [Page 7] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

 SVG 1.2 RFC allows SVG's 'title' and 'desc' elements.  'title'
 provides a brief text caption for an SVG object (much like a figure
 caption), and 'desc' provides a longer text description of what the
 object actually represents.  As well, the SVG 'role' attribute can be
 used to indicate to a browser how an SVG object is to be interpreted.
 Good suggestions on how to use these elements are given in
 [SVG-ACCESS-TIPS].
 ARIA is a W3C Recommendation for using SVG to create (as the name
 "ARIA" indicates) "Accessible Rich Internet Applications".  A helpful
 introduction to ARIA is provided by [SVG-ARIA-PRIMER], while
 [SVG-USING-ARIA] gives examples of how to use ARIA to enhance SVG
 accessibility.

5. Examples of Diagrams Common in RFCs

 Another way to create SVG drawings is to write programs to draw them.
 For example, using Python and its svgwrite module is a pleasant
 environment (for those who like writing code); this section presents
 a few examples of diagrams created in this way.  Note that they are
 merely examples of typical diagrams from RFCs.
 The SVG diagrams for this section, along with an HTML version of this
 document that includes the SVG diagrams, can be seen at
 [NB-SVG-1.2-RFC].

5.1. Packet Layout Diagrams

 Example: Figure 3 from [RFC793].

5.2. Sequence Diagrams (1)

 Example: Figure 6 from [ExpTrustedProxy].

5.3. Sequence Diagrams (2)

 Example: Figure 3 from [RFC4321].

6. Security Considerations

 This document does not introduce any security considerations on
 its own.

Brownlee Informational [Page 8] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

7. References

7.1. Normative References

 [RFC6949]  Flanagan, H. and N. Brownlee, "RFC Series Format
            Requirements and Future Development", RFC 6949,
            DOI 10.17487/RFC6949, May 2013,
            <http://www.rfc-editor.org/info/rfc6949>.
 [W3C.REC-SVGTiny12-20081222]
            Andersson, O., Berjon, R., Dahlstrom, E., Emmons, A.,
            Ferraiolo, J., Grasso, A., Hardy, V., Hayman, S., Jackson,
            D., Lilley, C., McCormack, C., Neumann, A., Northway, C.,
            Quint, A., Ramani, N., Schepers, D., and A. Shellshear,
            "Scalable Vector Graphics (SVG) Tiny 1.2 Specification",
            World Wide Web Consortium Recommendation
            REC-SVGTiny12-20081222, December 2008,
            <http://www.w3.org/TR/2008/REC-SVGTiny12-20081222>.
 [W3C.REC-CSS2-20110607]
            Bos, B., Celik, T., Hickson, I., and H. Lie, "Cascading
            Style Sheets Level 2 Revision 1 (CSS 2.1) Specification",
            World Wide Web Consortium Recommendation
            REC-CSS2-20110607, June 2011,
            <http://www.w3.org/TR/2011/REC-CSS2-20110607>.

7.2. Informative References

 [W3C.REC-SVG11-20110816]
            Dahlstrom, E., Dengler, P., Grasso, A., Lilley, C.,
            McCormack, C., Schepers, D., Watt, J., Ferraiolo, J.,
            Fujisawa, J., and D. Jackson, "Scalable Vector Graphics
            (SVG) 1.1 (Second Edition)", World Wide Web Consortium
            Recommendation REC-SVG11-20110816, August 2011,
            <http://www.w3.org/TR/2011/REC-SVG11-20110816>.
 [SVG-ACCESS-TIPS]
            Watson, L., "Tips for Creating Accessible SVG", May 2014,
            <http://www.sitepoint.com/tips-accessible-svg>.
 [SVG-ARIA-PRIMER]
            Pappas, L., Schwerdtfeger, R., and M. Cooper,
            "WAI-ARIA 1.0 Primer", World Wide Web Consortium
            Working Draft, September 2010,
            <http://www.w3.org/TR/2010/WD-wai-aria-primer-20100916>.

Brownlee Informational [Page 9] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

 [SVG-USING-ARIA]
            Watson, L., "Using ARIA to enhance SVG accessibility",
            The Paciello Group, December 2013,
            <https://www.paciellogroup.com/blog/2013/12/
            using-aria-enhance-svg-accessibility/>.
 [RFC7991]  Hoffman, P., "The "xml2rfc" Version 3 Vocabulary",
            RFC 7991, DOI 10.17487/RFC7991, December 2016,
            <http://www.rfc-editor.org/info/rfc7991>.
 [NB-SVG-1.2-RFC]
            Brownlee, N., "Index of /materials/format/svg",
            <https://www.rfc-editor.org/materials/format/svg/>.
 [RFC793]   Postel, J., "Transmission Control Protocol", STD 7,
            RFC 793, DOI 10.17487/RFC0793, September 1981,
            <http://www.rfc-editor.org/info/rfc793>.
 [ExpTrustedProxy]
            Loreto, S., Mattsson, J., Skog, R., Spaak, H., Bourg, G.,
            Druta, D., and M. Hafeez, "Explicit Trusted Proxy in
            HTTP/2.0", Work in Progress,
            draft-loreto-httpbis-trusted-proxy20-01, February 2014.
 [RFC4321]  Sparks, R., "Problems Identified Associated with the
            Session Initiation Protocol's (SIP) Non-INVITE
            Transaction", RFC 4321, DOI 10.17487/RFC4321,
            January 2006, <http://www.rfc-editor.org/info/rfc4321>.
 [RNG-HOME] Murata, M., "RELAX NG home page", February 2014,
            <http://www.relaxng.org/>.

Brownlee Informational [Page 10] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

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

 The following RNC schema can be used to check whether an SVG file
 conforms to SVG 1.2 RFC.  For example, if this schema were contained
 in a file called SVG-1.2-RFC.rnc, the following command will test
 whether SVG file diagram.svg is a conformant SVG 1.2 RFC drawing.
 jing -c SVG-1.2-RFC.rnc diagram.svg
 The RNC schema included below is available on the RFC Editor website
 <https://www.rfc-editor.org/materials/format/SVG-1.2-RFC.rnc>.  The
 website is considered definitive should there be any discrepancies.

#— SVG 1.2 RFC RNC schema; Nevil Brownlee, Thu 26 Jan 2016 (NZST)

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

rfc-color = ( # SVG-1.2-RFC doesn't allow color or grayscale

"black" | "white" | "#000000" | "#FFFFFF" | "#ffffff" | "inherit" )

start = svg svg =

element svg {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"

Brownlee Informational [Page 11] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute width { xsd:string }?,
  attribute height { xsd:string }?,
  attribute preserveAspectRatio {
    xsd:string { pattern = "\s*(none|xMidYMid)\s*(meet)?\s*" }
  }?,
  attribute viewBox { text }?,

Brownlee Informational [Page 12] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute zoomAndPan { "disable" }?,
  attribute version {
    xsd:string "1.2"
  }?,
  attribute baseProfile {
    xsd:string "tiny"
  }?,
  attribute contentScriptType { xsd:string }?,
  attribute snapshotTime { xsd:string "none" | xsd:string }?,
  attribute timelineBegin {
    xsd:string "onLoad" | xsd:string "onStart"
  }?,
  attribute playbackOrder {
    xsd:string "all" | xsd:string "forwardOnly"
  }?,
  (desc
   | svgTitle
   | path
   | rect
   | circle
   | line
   | ellipse
   | polyline
   | polygon
   | solidColor
   | textArea
   | linearGradient
   | radialGradient
   | \text
   | g
   | defs
   | use
   | a)*
}

desc =

element desc {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,

Brownlee Informational [Page 13] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  ((attribute display {
      "inline"
      | "block"
      | "list-item"
      | "run-in"
      | "compact"
      | "marker"
      | "table"
      | "inline-table"
      | "table-row-group"
      | "table-header-group"
      | "table-footer-group"
      | "table-row"
      | "table-column-group"
      | "table-column"
      | "table-cell"
      | "table-caption"
      | "none"
      | "inherit"
    }?,
    attribute visibility { "visible" | "hidden" | "collapse"
      | "inherit" }?,
    attribute image-rendering {
      "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
    }?,
    attribute shape-rendering {
      "auto"
      | "optimizeSpeed"
      | "crispEdges"
      | "geometricPrecision"
      | "inherit"
    }?,
    attribute text-rendering {
      "auto"
      | "optimizeSpeed"
      | "optimizeLegibility"
      | "geometricPrecision"
      | "inherit"
    }?,
    attribute buffered-rendering {

Brownlee Informational [Page 14] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      "auto" | "dynamic" | "static" | "inherit"
    }?)
   & (attribute viewport-fill { "none" | rfc-color }?,
      attribute viewport-fill-opacity { "inherit" | xsd:string }?)),
  text
}

svgTitle =

element title {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  ((attribute display {
      "inline"
      | "block"
      | "list-item"
      | "run-in"
      | "compact"
      | "marker"
      | "table"
      | "inline-table"
      | "table-row-group"
      | "table-header-group"
      | "table-footer-group"
      | "table-row"
      | "table-column-group"
      | "table-column"
      | "table-cell"
      | "table-caption"
      | "none"
      | "inherit"
    }?,

Brownlee Informational [Page 15] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

    attribute visibility { "visible" | "hidden"
      | "collapse" | "inherit" }?,
    attribute image-rendering {
      "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
    }?,
    attribute shape-rendering {
      "auto"
      | "optimizeSpeed"
      | "crispEdges"
      | "geometricPrecision"
      | "inherit"
    }?,
    attribute text-rendering {
      "auto"
      | "optimizeSpeed"
      | "optimizeLegibility"
      | "geometricPrecision"
      | "inherit"
    }?,
    attribute buffered-rendering {
      "auto" | "dynamic" | "static" | "inherit"
    }?)
   & (attribute viewport-fill { "none" | rfc-color }?,
      attribute viewport-fill-opacity { "inherit" | xsd:string }?)),
  text
}

path =

element path {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute transform { xsd:string | "none" }?,
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,

Brownlee Informational [Page 16] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"

Brownlee Informational [Page 17] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      }?)),
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute d { xsd:string }?,
  attribute pathLength { xsd:string }?,
  attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
  (desc
   | svgTitle)*
}

rect =

element rect {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute transform { xsd:string | "none" }?,
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"

Brownlee Informational [Page 18] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute x { xsd:string }?,
  attribute y { xsd:string }?,
  attribute width { xsd:string }?,
  attribute height { xsd:string }?,
  attribute rx { xsd:string }?,
  attribute ry { xsd:string }?,
  attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
  (desc

Brownlee Informational [Page 19] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

   | svgTitle)*
}

circle =

element circle {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute transform { xsd:string | "none" }?,
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)

Brownlee Informational [Page 20] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute cx { xsd:string }?,
  attribute cy { xsd:string }?,
  attribute r { xsd:string }?,
  attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
  (desc
   | svgTitle)*
}

line =

element line {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,

Brownlee Informational [Page 21] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute transform { xsd:string | "none" }?,
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {

Brownlee Informational [Page 22] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute x1 { xsd:string }?,
  attribute y1 { xsd:string }?,
  attribute x2 { xsd:string }?,
  attribute y2 { xsd:string }?,
  (desc
   | svgTitle)*
}

ellipse =

element ellipse {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute transform { xsd:string | "none" }?,
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,

Brownlee Informational [Page 23] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute requiredFeatures { xsd:string }?,

Brownlee Informational [Page 24] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute rx { xsd:string }?,
  attribute ry { xsd:string }?,
  attribute cx { xsd:string }?,
  attribute cy { xsd:string }?,
  attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
  (desc
   | svgTitle)*
}

polyline =

element polyline {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute transform { xsd:string | "none" }?,
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"

Brownlee Informational [Page 25] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute points { xsd:string }?,
  (desc
   | svgTitle)*
}

polygon =

element polygon {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,

Brownlee Informational [Page 26] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute transform { xsd:string | "none" }?,
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)

Brownlee Informational [Page 27] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute points { xsd:string }?,
  attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
  (desc
   | svgTitle)*
}

solidColor =

element solidColor {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {

Brownlee Informational [Page 28] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,

Brownlee Informational [Page 29] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  (desc
   | svgTitle)*
}

textArea =

element textArea {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,

Brownlee Informational [Page 30] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute transform { xsd:string | "none" }?,
  attribute x { xsd:string }?,
  attribute y { xsd:string }?,
  attribute width { xsd:string | "auto" }?,
  attribute height { xsd:string | "auto" }?,
  (tspan
   | desc
   | svgTitle
   | tspan_2
   | text
   | a_2)+
}

linearGradient =

element linearGradient {
  ((attribute fill-opacity { "inherit" | xsd:string }?,

Brownlee Informational [Page 31] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"

Brownlee Informational [Page 32] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute gradientUnits { "userSpaceOnUse" | "objectBoundingBox" }?,
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute x1 { xsd:string }?,
  attribute y1 { xsd:string }?,
  attribute x2 { xsd:string }?,
  attribute y2 { xsd:string }?,
  (desc
   | svgTitle)*
}

radialGradient =

element radialGradient {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)

Brownlee Informational [Page 33] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute gradientUnits { "userSpaceOnUse" | "objectBoundingBox" }?,
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,

Brownlee Informational [Page 34] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute cx { xsd:string }?,
  attribute cy { xsd:string }?,
  attribute r { xsd:string }?,
  (desc
   | svgTitle)*
}

\text =

element text {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"

Brownlee Informational [Page 35] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute transform { xsd:string | "none" }?,
  attribute x { xsd:string }?,
  attribute y { xsd:string }?,
  attribute rotate { xsd:string }?,
  attribute style { xsd:string }?,  # Added to SVG-1.2-RFC (Inkscape)
  (desc
   | svgTitle
   | tspan_2
   | text
   | a_2)+
}

g =

element g {

Brownlee Informational [Page 36] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {

Brownlee Informational [Page 37] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute transform { xsd:string | "none" }?,
  attribute style { xsd:string }?,
      # Added to SVG-1.2-RFC (for Inkscape)
  attribute visibility {
    "visible" | "hidden" | "collapse" | "inherit" }?,
      # Added to SVG-1.2-RFC (for LibreOffice)
  (desc
   | svgTitle
   | path
   | rect
   | circle
   | line
   | ellipse
   | polyline
   | polygon
   | solidColor
   | textArea
   | linearGradient
   | radialGradient
   | \text
   | g
   | defs
   | use

Brownlee Informational [Page 38] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

   | a)*
}

defs =

element defs {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"

Brownlee Informational [Page 39] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  (desc
   | svgTitle
   | path
   | rect
   | circle
   | line
   | ellipse
   | polyline
   | polygon
   | solidColor
   | textArea
   | linearGradient
   | radialGradient
   | \text
   | g
   | defs
   | use
   | a)*
}

use =

element use {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,

Brownlee Informational [Page 40] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {

Brownlee Informational [Page 41] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute transform { xsd:string | "none" }?,
  attribute ns1:show { "embed" }?,
  attribute ns1:actuate { "onLoad" }?,
  attribute ns1:type { "simple" }?,
  attribute ns1:role { xsd:anyURI | xsd:string }?,
  attribute ns1:arcrole { xsd:anyURI | xsd:string }?,
  attribute ns1:title { text }?,
  attribute ns1:href { xsd:anyURI | xsd:string }?,
  attribute x { xsd:string }?,
  attribute y { xsd:string }?,
  (desc
   | svgTitle)*
}

a =

element a {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,

Brownlee Informational [Page 42] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,

Brownlee Informational [Page 43] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute transform { xsd:string | "none" }?,
  attribute ns1:show { "new" | "replace" }?,
  attribute ns1:actuate { "onRequest" }?,
  attribute ns1:type { "simple" }?,
  attribute ns1:role { xsd:anyURI | xsd:string }?,
  attribute ns1:arcrole { xsd:anyURI | xsd:string }?,
  attribute ns1:title { text }?,
  attribute ns1:href { xsd:anyURI | xsd:string }?,
  attribute target {
    "_replace" | "_self" | "_parent" | "_top" | "_blank" | xsd:Name
  }?,
  (desc
   | svgTitle
   | path
   | rect
   | circle
   | line
   | ellipse
   | polyline
   | polygon
   | solidColor
   | textArea
   | linearGradient
   | radialGradient
   | \text
   | g
   | defs
   | use)*
}

stop =

element stop {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "inherit" | xsd:string }?,

Brownlee Informational [Page 44] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { "inherit" | xsd:string }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { "inherit" | xsd:string }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { "inherit" | xsd:string }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {

Brownlee Informational [Page 45] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute offset { xsd:string }?,
  (desc
   | svgTitle)*
}

tspan =

element tspan {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"

Brownlee Informational [Page 46] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,

Brownlee Informational [Page 47] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute x { xsd:string }?,  # For SVG-1.2-RFC
  attribute y { xsd:string }?,
  (tbreak
   | desc
   | svgTitle
   | tspan_2
   | text
   | a_2)+
}

tspan_2 =

element tspan {
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"
      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {

Brownlee Informational [Page 48] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  attribute x { xsd:string }?,  # For SVG-1.2-RFC
  attribute y { xsd:string }?,
  (desc
   | svgTitle
   | tspan_2
   | text
   | a_2)+
}

a_2 =

element a {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,

Brownlee Informational [Page 49] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,
  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?,
  ((attribute fill-opacity { "inherit" | xsd:string }?,
    attribute stroke-opacity { "inherit" | xsd:string }?)
   & (attribute fill { "none" | rfc-color }?,
      attribute fill-rule { "inherit" | "nonzero" | "evenodd" }?,
      attribute stroke { rfc-color }?,
      attribute stroke-dasharray { "inherit" | "none" | xsd:string }?,
      attribute stroke-dashoffset { "inherit" | xsd:string }?,
      attribute stroke-linecap {
        "butt" | "round" | "square" | "inherit"
      }?,
      attribute stroke-linejoin {
        "miter" | "round" | "bevel" | "inherit"
      }?,
      attribute stroke-miterlimit { "inherit" | xsd:string }?,
      attribute stroke-width { "inherit" | xsd:string }?,
      attribute color { rfc-color }?,
      attribute color-rendering {
        "auto" | "optimizeSpeed" | "optimizeQuality" | "inherit"
      }?)
   & attribute vector-effect {
       "none" | "non-scaling-stroke" | "inherit"
     }?
   & (attribute direction { "ltr" | "rtl" | "inherit" }?,
      attribute unicode-bidi {
        "normal" | "embed" | "bidi-override" | "inherit"
      }?)
   & (attribute solid-color { rfc-color }?,
      attribute solid-opacity { "inherit" | xsd:string }?)
   & (attribute display-align {
        "auto" | "before" | "center" | "after" | "inherit"

Brownlee Informational [Page 50] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

      }?,
      attribute line-increment { "auto" | "inherit" | xsd:string }?)
   & (attribute stop-color { rfc-color }?,
      attribute stop-opacity { "inherit" | xsd:string }?)
   & (attribute font-family { "inherit" | xsd:string }?,
      attribute font-size { "inherit" | xsd:string }?,
      attribute font-style {
        "normal" | "italic" | "oblique" | "inherit"
      }?,
      attribute font-variant { "normal" | "small-caps" | "inherit" }?,
      attribute font-weight {
        "normal"
        | "bold"
        | "bolder"
        | "lighter"
        | "inherit"
      }?,
      attribute text-anchor {
        "start" | "middle" | "end" | "inherit"
      }?,
      attribute text-align {
        "start" | "center" | "end" | "inherit"
      }?)),
  attribute transform { xsd:string | "none" }?,
  attribute ns1:show { "new" | "replace" }?,
  attribute ns1:actuate { "onRequest" }?,
  attribute ns1:type { "simple" }?,
  attribute ns1:role { xsd:anyURI | xsd:string }?,
  attribute ns1:arcrole { xsd:anyURI | xsd:string }?,
  attribute ns1:title { text }?,
  attribute ns1:href { xsd:anyURI | xsd:string }?,
  attribute target {
    "_replace" | "_self" | "_parent" | "_top" | "_blank" | xsd:Name
  }?,
  (desc
   | svgTitle
   | tspan_2
   | text)+
}

tbreak =

element tbreak {
  (attribute id { xsd:NCName }
   | attribute xml:id { xsd:NCName })?,
  attribute xml:base { xsd:anyURI | xsd:string }?,
  attribute xml:lang { xsd:language? }?,
  attribute class { xsd:NMTOKENS }?,
  attribute role { xsd:string }?,
  attribute rel { xsd:string }?,

Brownlee Informational [Page 51] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

  attribute rev { xsd:string }?,
  attribute typeof { xsd:string }?,
  attribute content { xsd:string }?,
  attribute datatype { xsd:string }?,
  attribute resource { xsd:string }?,
  attribute about { xsd:string }?,
  attribute property { xsd:string }?,
  attribute xml:space { "default" | "preserve" }?,
  attribute requiredFeatures { xsd:string }?,
  attribute requiredExtensions { xsd:string }?,
  attribute requiredFormats { xsd:string }?,
  attribute requiredFonts { xsd:string }?,
  attribute systemLanguage { xsd:string }?
}

#— End of SVG 1.2 RFC RNC schema

Brownlee Informational [Page 52] RFC 7996 SVG Drawings for RFCs: SVG 1.2 RFC December 2016

IAB Members at the Time of Approval

 The IAB members at the time this memo was approved were
 (in alphabetical order):
    Jari Arkko
    Ralph Droms
    Ted Hardie
    Joe Hildebrand
    Russ Housley
    Lee Howard
    Erik Nordmark
    Robert Sparks
    Andrew Sullivan
    Dave Thaler
    Martin Thomson
    Brian Trammell
    Suzanne Woolf

Acknowledgements

 Thanks to the RSE and the Design Team members for their helpful
 comments and suggestions for SVG 1.2 RFC.  Thanks also to the wider
 IETF community for their input.

Author's Address

 Nevil Brownlee
 The University of Auckland
 Email: n.brownlee@auckland.ac.nz

Brownlee Informational [Page 53]

/data/webs/external/dokuwiki/data/pages/rfc/rfc7996.txt · Last modified: 2016/12/16 15:30 by 127.0.0.1

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki