Network Working Group J. Reschke Internet-Draft greenbytes Obsoletes: 2629 (if approved) November 26, 2013 Intended status: Standards Track Expires: May 30, 2014 The 'XML2RFC' version 2 Vocabulary draft-reschke-xml2rfc-02 Abstract This document defines the 'XML2RFC' version 2 vocabulary; an XML- based language used for writing Internet-Drafts and RFCs. This vocabulary is used for current processing of XML into RFCs. A future version of this vocabulary will be used as the canonical version of RFCs. Editorial Note (To be removed by RFC Editor) Discussion of this draft takes place on the XML2RFC mailing list (xml2rfc@ietf.org), which has its home page at . Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on May 30, 2014. Copyright Notice Copyright (c) 2013 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 Reschke Expires May 30, 2014 [Page 1] Internet-Draft XML2RFC November 2013 (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. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.1. Syntax Notation . . . . . . . . . . . . . . . . . . . . . 4 2. Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1. . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2.
. . . . . . . . . . . . . . . . . . . . . . . . 5 2.3. . . . . . . . . . . . . . . . . . . . . . . . 5 2.4. . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.5. . . . . . . . . . . . . . . . . . . . . . . . . 7 2.6. . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.7. . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.9. . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.10. . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.11. . . . . . . . . . . . . . . . . . . . . . . . . 13 2.12. . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.13. . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.14. . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.15. . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2.16. . . . . . . . . . . . . . . . . . . . . . . . 17 2.17.
. . . . . . . . . . . . . . . . . . . . . . . . . 17 2.18. . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.19. . . . . . . . . . . . . . . . . . . . . . . . . . 20 2.20. . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2.21. . . . . . . . . . . . . . . . . . . . . . . . . 22 2.22. . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.23. . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.24. . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.25. . . . . . . . . . . . . . . . . . . . . . . 25 2.26. . . . . . . . . . . . . . . . . . . . . . . . . . 25 2.27. . . . . . . . . . . . . . . . . . . . . . . . . . 26 2.28. . . . . . . . . . . . . . . . . . . . . . . . 26 2.29. . . . . . . . . . . . . . . . . . . . . . . . . 27 2.30. . . . . . . . . . . . . . . . . . . . . . . . 28 2.31. . . . . . . . . . . . . . . . . . . . . . . . 29 2.32. . . . . . . . . . . . . . . . . . . . . . . . . . 30 2.33. . . . . . . . . . . . . . . . . . . . . . . . . . . 30 2.34.
. . . . . . . . . . . . . . . . . . . . . . . . 34 2.35. . . . . . . . . . . . . . . . . . . . . . . . 36 Reschke Expires May 30, 2014 [Page 2] Internet-Draft XML2RFC November 2013 2.36. . . . . . . . . . . . . . . . . . . . . . . . . . 37 2.37. . . . . . . . . . . . . . . . . . . . . . . . . . 38 2.38. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 2.39. . . . . . . . . . . . . . . . . . . . . . . . 39 2.40. . . . . . . . . . . . . . . . . . . . . . . . . . 41 2.41. <ttcol> . . . . . . . . . . . . . . . . . . . . . . . . . 42 2.42. <uri> . . . . . . . . . . . . . . . . . . . . . . . . . . 43 2.43. <vspace> . . . . . . . . . . . . . . . . . . . . . . . . . 43 2.44. <workgroup> . . . . . . . . . . . . . . . . . . . . . . . 44 2.45. <xref> . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3. Special Unicode Code Points . . . . . . . . . . . . . . . . . 45 4. Internationalization Considerations . . . . . . . . . . . . . 46 5. Security Considerations . . . . . . . . . . . . . . . . . . . 46 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 46 7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 46 8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 46 8.1. Normative References . . . . . . . . . . . . . . . . . . . 46 8.2. Informative References . . . . . . . . . . . . . . . . . . 46 Appendix A. Front Page Generation . . . . . . . . . . . . . . . . 47 A.1. The /rfc/@category Attribute . . . . . . . . . . . . . . . 48 A.2. The /rfc/@ipr Attribute . . . . . . . . . . . . . . . . . 48 A.2.1. Current Values: '*trust200902' . . . . . . . . . . . . 48 A.2.2. Historic Values . . . . . . . . . . . . . . . . . . . 50 Appendix B. Changes from RFC 2629 ('v1') . . . . . . . . . . . . 51 B.1. Removed Elements . . . . . . . . . . . . . . . . . . . . . 51 B.2. Changed Defaults . . . . . . . . . . . . . . . . . . . . . 51 B.3. Changed Elements . . . . . . . . . . . . . . . . . . . . . 51 B.4. New Elements . . . . . . . . . . . . . . . . . . . . . . . 52 Appendix C. Relax NG Schema . . . . . . . . . . . . . . . . . . . 52 Appendix D. Proposed Future Changes for 'v3' . . . . . . . . . . 57 D.1. Contact Information . . . . . . . . . . . . . . . . . . . 57 D.2. Figures . . . . . . . . . . . . . . . . . . . . . . . . . 58 D.3. Linking . . . . . . . . . . . . . . . . . . . . . . . . . 58 D.4. Lists . . . . . . . . . . . . . . . . . . . . . . . . . . 58 D.5. References . . . . . . . . . . . . . . . . . . . . . . . . 59 D.6. Archival Considerations . . . . . . . . . . . . . . . . . 59 D.7. Document Metadata . . . . . . . . . . . . . . . . . . . . 59 D.8. Misc. . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Appendix E. Comparison Of Vocabularies (to be removed before publication as RFC) . . . . . . . . . . . . . . . . . 60 E.1. RFC 2629 ('v1') RelaxNG Grammar . . . . . . . . . . . . . 60 E.2. Current ('v2') RelaxNG Grammar . . . . . . . . . . . . . . 63 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Reschke Expires May 30, 2014 [Page 3] Internet-Draft XML2RFC November 2013 1. Introduction This document describes version 2 ('v2') of the 'XML2RFC' vocabulary; an XML (Extensible Markup Language) language ([XML]) used for writing RFCs ([RFCSTYLE]) and Internet-Drafts ([IDGUIDE]). It obsoletes the original version ("v1") [RFC2629], which contained the original language definition, and which was subsequently extended ("v2"). Furthermore, it discusses potential extensions in a future revision ("v3"). Note that not the vocabulary contains certain constructs that might not be used when generating the final text; however, they can provide useful data for other uses (such index generation, populating a keyword database, or syntax checks). 1.1. Syntax Notation The XML vocabulary here is defined in prose, based on the Relax NG schema ([RNC]) contained in Appendix C (specified in Relax NG Compact Notation, "RNC"). Each element description also contains the RNC fragment for that specific element in a slightly simplified form (for instance, leaving out defaults). This is included as alternative for readers who prefer formal syntax over prose. [[anchor2: This information is redundant with the prose *and* repeated in the index; I'd like to hear feedback whether it's more useful than distracting.]] Note that the schema can be used for automated validity checks, but certain constraints are only described in prose (example: the conditionally required presence of the "abbrev" attribute). 2. Elements [[anchor3: In the section below, some elements/attributes do not have a prose description yet. This is because this is work-in-progress; feedback with accurate descriptions is appreciated.]] 2.1. <abstract> Contains the abstract of the document. The abstract ought to be self-contained and thus should not contain references or unexpanded abbreviations. See Section 4.3 of [RFCSTYLE] for more information. This element appears as child element of: <front> (Section 2.19). Content model: Reschke Expires May 30, 2014 [Page 4] Internet-Draft XML2RFC November 2013 One or more <t> elements (Section 2.38) 2.1.1. Grammar abstract = element abstract { t+ } 2.2. <address> Provides address information for the author. This element appears as child element of: <author> (Section 2.6). Content model: 1. One optional <postal> element (Section 2.27) 2. One optional <phone> element (Section 2.26) 3. One optional <facsimile> element (Section 2.16) 4. One optional <email> element (Section 2.14) 5. One optional <uri> element (Section 2.42) 2.2.1. Grammar address = element address { postal?, phone?, facsimile?, email?, uri? } 2.3. <annotation> Provides additional prose augmenting a bibliographical reference. Reschke Expires May 30, 2014 [Page 5] Internet-Draft XML2RFC November 2013 For instance: <annotation> Latest version available at <eref target='http://www.w3.org/TR/xml'/>. </annotation> ...will generate the text used in the reference for [XML]. This element appears as child element of: <reference> (Section 2.30). Content model: In any order: o Text o <xref> elements (Section 2.45) o <eref> elements (Section 2.15) o <iref> elements (Section 2.20) o <cref> elements (Section 2.12) o <spanx> elements (Section 2.36) 2.3.1. Grammar annotation = element annotation { (TEXT | xref | eref | iref | cref | spanx)* } 2.4. <area> Provides information about the IETF area this document applies to (currently not used when generating documents). This element appears as child element of: <front> (Section 2.19). Content model: only text content. Reschke Expires May 30, 2014 [Page 6] Internet-Draft XML2RFC November 2013 2.4.1. Grammar area = element area { CTEXT } 2.5. <artwork> This element allows the inclusion of "artwork" into the document. <artwork> is the only element in the vocabulary that provides full control of horizontal whitespace and line breaks, and thus is used for a variety of things, such as: o diagrams ("line art"), o source code, o formal languages (such as ABNF or the RNC notation used in this document), o complex tables, or o protocol unit diagrams. Alternatively, the "src" attribute allows referencing an external graphics file, such as a bitmap or a vector drawing. In this case, the textual content ought to contain either a "line art" variant of the graphics, or otherwise prose that describes the included image in sufficient detail. Note that RFCs occasionally are published with enhanced diagrams; a recent example is [RFC5598]. This element appears as child element of: <figure> (Section 2.17). Content model: Text 2.5.1. Attributes 2.5.1.1. align (optional) Controls whether the artwork appears left (default), centered, or right. Reschke Expires May 30, 2014 [Page 7] Internet-Draft XML2RFC November 2013 Allowed values: o "left" (default) o "center" o "right" 2.5.1.2. alt (optional) Alternative text description of the artwork (not just the caption). 2.5.1.3. height (optional) The suggested height of the graphics included using the "src" attribute. This attribute is format-dependent and ought to be avoided. When generating HTML output, current implementations copy the attribute "as is". For other output formats it is usually ignored. 2.5.1.4. name (optional) A filename suitable for the contents (such as for extraction to a local file). This attribute generally isn't used for document generation, but it can be helpful for other kinds of tools (such as automated syntax checkers which work by extracting the source code). 2.5.1.5. src (optional) The URI of a graphics file. Note that this can be a "data" URI ([RFC2397]) as well, in which case the graphics file essentially is in-lined. Reschke Expires May 30, 2014 [Page 8] Internet-Draft XML2RFC November 2013 2.5.1.6. type (optional) Specifies the type of the artwork. The value either is a well-known keyword (such as "abnf"), or an Internet Media Type (see [RFC2046]). How it is used depends on context and application. For instance, a formatter can attempt to syntax-highlight code in certain known languages. 2.5.1.7. width (optional) The suggested width of the graphics included using the "src" attribute. This attribute is format-dependent and ought to be avoided. When generating HTML output, current implementations copy the attribute "as is". For other output formats it is usually ignored. 2.5.1.8. xml:space (optional) Determines whitespace handling. "preserve" is both the default value and the only meaningful setting anyway (because that's what the <artwork> element is for). See also Section 2.10 of [XML]. Allowed values: o "default" o "preserve" (default) 2.5.2. Grammar Reschke Expires May 30, 2014 [Page 9] Internet-Draft XML2RFC November 2013 artwork = element artwork { attribute xml:space ( "default" | "preserve" )?, attribute name { ATEXT }?, attribute type { ATEXT }?, attribute src { URI }?, attribute align ( "left" | "center" | "right" )?, attribute alt { ATEXT }?, attribute width { ATEXT }?, attribute height { ATEXT }?, TEXT* } 2.6. <author> Provides information about a document author. The <author> elements contained within the document's <front> element are used to fill the boilerplate, and also to generate the "Author's Address" section (see Section 4.9 of [RFCSTYLE]). Note that an "author" can also be just an organization (by not specifying any of the name attributes, but adding the <organization> child element). Furthermore, the "role" attribute can be used to mark an author as "editor". This is reflected both on the front page and in bibliographical references. Note that this specification does not define a precise meaning for the term "editor". See Section "Authors vs. Contributors" of [RFCPOLICY] for more information. This element appears as child element of: <front> (Section 2.19). Content model: 1. One optional <organization> element (Section 2.25) 2. One optional <address> element (Section 2.2) 2.6.1. Attributes 2.6.1.1. fullname (optional) The full name (used in the automatically generated "Author's Address" Reschke Expires May 30, 2014 [Page 10] Internet-Draft XML2RFC November 2013 section). 2.6.1.2. initials (optional) Author initials (used on the front page and in references). Initials should be provided as a whitespace separated list of pairs of a letter and a dot. 2.6.1.3. role (optional) Specifies the role the author had in creating the document. Allowed values: o "editor" 2.6.1.4. surname (optional) The author's surname. 2.6.2. Grammar author = element author { attribute initials { ATEXT }?, attribute surname { ATEXT }?, attribute fullname { ATEXT }?, attribute role { "editor" }?, organization?, address? } 2.7. <back> Contains the "back" part of the document: the references and appendices. This element appears as child element of: <rfc> (Section 2.33). Content model: Reschke Expires May 30, 2014 [Page 11] Internet-Draft XML2RFC November 2013 1. Optional <references> elements (Section 2.31) 2. Optional <section> elements (Section 2.34) 2.7.1. Grammar back = element back { references*, section* } 2.8. <c> Provides the content of a cell in a table. This element appears as child element of: <texttable> (Section 2.39). Content model: In any order: o Text o <xref> elements (Section 2.45) o <eref> elements (Section 2.15) o <iref> elements (Section 2.20) o <cref> elements (Section 2.12) o <spanx> elements (Section 2.36) 2.8.1. Grammar c = element c { (TEXT | xref | eref | iref | cref | spanx)* } Reschke Expires May 30, 2014 [Page 12] Internet-Draft XML2RFC November 2013 2.9. <city> Gives the city name in a postal address. This element appears as child element of: <postal> (Section 2.27). Content model: only text content. 2.9.1. Grammar city = element city { CTEXT } 2.10. <code> Gives the postal region code. This element appears as child element of: <postal> (Section 2.27). Content model: only text content. 2.10.1. Grammar code = element code { CTEXT } 2.11. <country> Gives the country in a postal address. This element appears as child element of: <postal> (Section 2.27). Content model: only text content. 2.11.1. Grammar country = element country { CTEXT } Reschke Expires May 30, 2014 [Page 13] Internet-Draft XML2RFC November 2013 2.12. <cref> Represents a comment. Comments can be used in a document while it is work-in-progress. They usually appear either visually highlighted, at the end of the document (depending on file format and settings of the formatter), or not at all (when generating an RFC). This element appears as child element of: <annotation> (Section 2.3), <c> (Section 2.8), <postamble> (Section 2.28), <preamble> (Section 2.29), and <t> (Section 2.38). Content model: only text content. 2.12.1. Attributes 2.12.1.1. anchor (optional) [[element.cref.attribute.anchor.missing: attribute description missing]] 2.12.1.2. source (optional) Holds the "source" of a comment, such as the name or the initials of the person who made the comment. 2.12.2. Grammar cref = element cref { attribute anchor { xsd:ID }?, attribute source { ATEXT }?, CTEXT } 2.13. <date> Provides information about the publication date. Note that this element is used both for the boilerplate of the document being produced, and also inside bibliographic references. In the first case, it defines the publication date, which, when Reschke Expires May 30, 2014 [Page 14] Internet-Draft XML2RFC November 2013 producing Internet-Drafts, will be used for computing the expiration date (see Section 8 of [IDGUIDE]). When "year", "month" or "day" are left out, the processor will attempt to use the current system date if the attributes that are specified do match the system date. Note that month names need to match the full (English) month name ("January", "February", "March", "April", "May, "June", "July", "August", "September", "October", "November", or "December") in order for expiration calculations to work. In the second case, the date information will be embedded as-is into the reference text. Therefore, also vague dates ("ca. 2000"), date ranges, and so on, are allowed. This element appears as child element of: <front> (Section 2.19). Content model: this element does not have any contents. 2.13.1. Attributes 2.13.1.1. day (optional) Day of publication. 2.13.1.2. month (optional) Month of publication. 2.13.1.3. year (optional) Year of publication. 2.13.2. Grammar date = element date { attribute day { DAY }?, attribute month { MONTH }?, attribute year { YEAR }?, empty } Reschke Expires May 30, 2014 [Page 15] Internet-Draft XML2RFC November 2013 2.14. <email> Provides an email address. The value is expected to be the scheme-specific part of a "mailto" URI (so does not include the prefix "mailto:"). See Section 2 of [RFC6068] for details. This element appears as child element of: <address> (Section 2.2). Content model: only text content. 2.14.1. Grammar email = element email { CTEXT } 2.15. <eref> Represents an "external" link (as specified in the "target" attribute). If the element has text content, that content will be used. Otherwise, the value of the target attribute will be inserted in angle brackets ([RFC3986], Appendix C). This element appears as child element of: <annotation> (Section 2.3), <c> (Section 2.8), <postamble> (Section 2.28), <preamble> (Section 2.29), and <t> (Section 2.38). Content model: only text content. 2.15.1. Attributes 2.15.1.1. target (mandatory) URI of the link target (see Section 3 of [RFC3986]). 2.15.2. Grammar Reschke Expires May 30, 2014 [Page 16] Internet-Draft XML2RFC November 2013 eref = element eref { attribute target { URI }, CTEXT } 2.16. <facsimile> Represents the phone number of a fax machine. The value is expected to be the scheme-specific part of a "tel" URI (so does not include the prefix "tel:"), using the "global numbers" syntax. See Section 3 of [RFC3966] for details. This element appears as child element of: <address> (Section 2.2). Content model: only text content. 2.16.1. Grammar facsimile = element facsimile { CTEXT } 2.17. <figure> [[element.figure.missing: element description missing]] This element appears as child element of: <section> (Section 2.34), and <t> (Section 2.38). Content model: 1. Optional <iref> elements (Section 2.20) 2. One optional <preamble> element (Section 2.29) 3. One <artwork> element (Section 2.5) 4. One optional <postamble> element (Section 2.28) 2.17.1. Attributes 2.17.1.1. align (optional) Reschke Expires May 30, 2014 [Page 17] Internet-Draft XML2RFC November 2013 [[element.figure.attribute.align.missing: attribute description missing]] Allowed values: o "left" (default) o "center" o "right" 2.17.1.2. alt (optional) [[element.figure.attribute.alt.missing: attribute description missing]] 2.17.1.3. anchor (optional) [[element.figure.attribute.anchor.missing: attribute description missing]] 2.17.1.4. height (optional) [[element.figure.attribute.height.missing: attribute description missing]] 2.17.1.5. src (optional) [[element.figure.attribute.src.missing: attribute description missing]] 2.17.1.6. suppress-title (optional) Figures that have an "anchor" attribute will automatically get an autogenerated title (such as "Figure 1"). Setting this attribute to "false" will prevent this. Allowed values: Reschke Expires May 30, 2014 [Page 18] Internet-Draft XML2RFC November 2013 o "true" o "false" (default) 2.17.1.7. title (optional) [[element.figure.attribute.title.missing: attribute description missing]] 2.17.1.8. width (optional) [[element.figure.attribute.width.missing: attribute description missing]] 2.17.2. Grammar figure = element figure { attribute anchor { xsd:ID }?, attribute title { ATEXT }?, attribute suppress-title ( "true" | "false" )?, attribute src { URI }?, attribute align ( "left" | "center" | "right" )?, attribute alt { ATEXT }?, attribute width { ATEXT }?, attribute height { ATEXT }?, iref*, preamble?, artwork, postamble? } 2.18. <format> Provides a link to an additional format variant for a reference. Note that these additional links are neither used in published RFCs, nor supported by all tools. If the goal is to provide a single URI for a reference, the "target" attribute on <reference> can be used instead. This element appears as child element of: <reference> (Section 2.30). Content model: this element does not have any contents. Reschke Expires May 30, 2014 [Page 19] Internet-Draft XML2RFC November 2013 2.18.1. Attributes 2.18.1.1. octets (optional) Octet length of linked-to document. 2.18.1.2. target (optional) URI of document. [[anchor11: Why is this optional?]] 2.18.1.3. type (mandatory) The type of the linked-to document, such as "TXT", "HTML", or "PDF". 2.18.2. Grammar format = element format { attribute target { URI }?, attribute type { ATEXT }, attribute octets { NUMBER }?, empty } 2.19. <front> Represent the "front matter": metadata (such as author information), abstract, and additional notes. This element appears as child element of: <reference> (Section 2.30), and <rfc> (Section 2.33). Content model: 1. One <title> element (Section 2.40) 2. One or more <author> elements (Section 2.6) 3. One <date> element (Section 2.13) Reschke Expires May 30, 2014 [Page 20] Internet-Draft XML2RFC November 2013 4. Optional <area> elements (Section 2.4) 5. Optional <workgroup> elements (Section 2.44) 6. Optional <keyword> elements (Section 2.21) 7. One optional <abstract> element (Section 2.1) 8. Optional <note> elements (Section 2.24) 2.19.1. Grammar front = element front { title, author+, date, area*, workgroup*, keyword*, abstract?, note* } 2.20. <iref> Provides terms for the document's index. Index entries can be either single items (when just the "item" attribute is given) or nested items (by specifying "subitem" as well). For instance: <iref item="Grammar" subitem="item"/> will produce an index entry for "Grammar, item". This element appears as child element of: <annotation> (Section 2.3), <c> (Section 2.8), <figure> (Section 2.17), <postamble> (Section 2.28), <preamble> (Section 2.29), <section> (Section 2.34), and <t> (Section 2.38). Content model: this element does not have any contents. Reschke Expires May 30, 2014 [Page 21] Internet-Draft XML2RFC November 2013 2.20.1. Attributes 2.20.1.1. item (mandatory) The item to include. 2.20.1.2. primary (optional) Setting this to "true" declares the occurrence as "primary", which might cause it to be highlighted in the index. Allowed values: o "true" o "false" (default) 2.20.1.3. subitem (optional) The subitem to include. 2.20.2. Grammar iref = element iref { attribute item { ATEXT }, attribute subitem { ATEXT }?, attribute primary ( "true" | "false" )?, empty } 2.21. <keyword> Specifies a keyword applicable to the document. Note that each element should only contain a single keyword; for multiple keywords, the element can simply be repeated. Keywords are used both in the RFC Index and in the metadata of generated document formats. This element appears as child element of: <front> (Section 2.19). Reschke Expires May 30, 2014 [Page 22] Internet-Draft XML2RFC November 2013 Content model: only text content. 2.21.1. Grammar keyword = element keyword { CTEXT } 2.22. <list> Delineates a text list. This element appears as child element of: <t> (Section 2.38). Content model: One or more <t> elements (Section 2.38) 2.22.1. Attributes 2.22.1.1. counter (optional) [[element.list.attribute.counter.missing: attribute description missing]] 2.22.1.2. hangIndent (optional) [[element.list.attribute.hangIndent.missing: attribute description missing]] 2.22.1.3. style (optional) [[element.list.attribute.style.missing: attribute description missing]] 2.22.2. Grammar Reschke Expires May 30, 2014 [Page 23] Internet-Draft XML2RFC November 2013 \list = element \list { attribute style { ATEXT }?, attribute hangIndent { NUMBER }?, attribute counter { ATEXT }?, t+ } 2.23. <middle> Represents the main content of the document. This element appears as child element of: <rfc> (Section 2.33). Content model: One or more <section> elements (Section 2.34) 2.23.1. Grammar middle = element middle { section+ } 2.24. <note> Creates an unnumbered section that appears after the abstract. It is usually used for additional information to reviewers (working group information, mailing list, ...), or for additional publication information such as "IESG Notes". This element appears as child element of: <front> (Section 2.19). Content model: One or more <t> elements (Section 2.38) 2.24.1. Attributes 2.24.1.1. title (mandatory) The title of the note. Reschke Expires May 30, 2014 [Page 24] Internet-Draft XML2RFC November 2013 2.24.2. Grammar note = element note { attribute title { ATEXT }, t+ } 2.25. <organization> Specifies the affiliation of an author. This information appears in both the "Author's Address" section and on the front page ([RFCSTYLE], Section 4.1.2). If the value is long, an abbreviated variant can be specified in the "abbrev" attribute. This element appears as child element of: <author> (Section 2.6). Content model: only text content. 2.25.1. Attributes 2.25.1.1. abbrev (optional) Abbreviated variant. 2.25.2. Grammar organization = element organization { attribute abbrev { ATEXT }?, CTEXT } 2.26. <phone> Represents a phone number. The value is expected to be the scheme-specific part of a "tel" URI (so does not include the prefix "tel:"), using the "global numbers" syntax. See Section 3 of [RFC3966] for details. This element appears as child element of: <address> (Section 2.2). Content model: only text content. Reschke Expires May 30, 2014 [Page 25] Internet-Draft XML2RFC November 2013 2.26.1. Grammar phone = element phone { CTEXT } 2.27. <postal> Contains child elements providing postal information. This element appears as child element of: <address> (Section 2.2). Content model: 1. One or more <street> elements (Section 2.37) 2. In any order: * <city> elements (Section 2.9) * <region> elements (Section 2.32) * <code> elements (Section 2.10) * <country> elements (Section 2.11) 2.27.1. Grammar postal = element postal { street+, (city | region | code | country)* } 2.28. <postamble> Gives text that appears at the bottom of a figure or table. This element appears as child element of: <figure> (Section 2.17), and <texttable> (Section 2.39). Content model: In any order: Reschke Expires May 30, 2014 [Page 26] Internet-Draft XML2RFC November 2013 o Text o <xref> elements (Section 2.45) o <eref> elements (Section 2.15) o <iref> elements (Section 2.20) o <cref> elements (Section 2.12) o <spanx> elements (Section 2.36) 2.28.1. Grammar postamble = element postamble { (TEXT | xref | eref | iref | cref | spanx)* } 2.29. <preamble> Gives text that appears at the top of a figure or table. This element appears as child element of: <figure> (Section 2.17), and <texttable> (Section 2.39). Content model: In any order: o Text o <xref> elements (Section 2.45) o <eref> elements (Section 2.15) o <iref> elements (Section 2.20) o <cref> elements (Section 2.12) o <spanx> elements (Section 2.36) Reschke Expires May 30, 2014 [Page 27] Internet-Draft XML2RFC November 2013 2.29.1. Grammar preamble = element preamble { (TEXT | xref | eref | iref | cref | spanx)* } 2.30. <reference> Represents a bibliographical reference. This element appears as child element of: <references> (Section 2.31). Content model: 1. One <front> element (Section 2.19) 2. Optional <seriesInfo> elements (Section 2.35) 3. Optional <format> elements (Section 2.18) 4. Optional <annotation> elements (Section 2.3) 2.30.1. Attributes 2.30.1.1. anchor (optional) [[element.reference.attribute.anchor.missing: attribute description missing]] 2.30.1.2. target (optional) Holds the URI for the reference. Note that depending on the <seriesInfo> element, a URI might not be needed, nor desirable, as it can be automatically generated (for instance, for RFCs). Reschke Expires May 30, 2014 [Page 28] Internet-Draft XML2RFC November 2013 2.30.2. Grammar reference = element reference { attribute anchor { xsd:ID }?, attribute target { URI }?, front, seriesInfo*, format*, annotation* } 2.31. <references> Contains a set of bibliographical references. In the early days of the RFC series, there was only one "References" section per RFC. This convention was later changed to group references into two sets, "Normative" and "Informative"; see item x of Section 4.8 of [RFCSTYLE]). This vocabulary supports the split with the "title" attribute. This element appears as child element of: <back> (Section 2.7). Content model: One or more <reference> elements (Section 2.30) 2.31.1. Attributes 2.31.1.1. title (optional) Provides the title for the References section (defaulting to "References"). In general, the title should be either "Normative References" or "Informative References". 2.31.2. Grammar references = element references { attribute title { ATEXT }?, reference+ } Reschke Expires May 30, 2014 [Page 29] Internet-Draft XML2RFC November 2013 2.32. <region> Provides the region name in a postal address. This element appears as child element of: <postal> (Section 2.27). Content model: only text content. 2.32.1. Grammar region = element region { CTEXT } 2.33. <rfc> This is the root element of the xml2rfc vocabulary. Processors distinguish between RFC mode ("number" attribute being present) and Internet-Draft mode ("docName" attribute being present): it is invalid to specify both. Setting neither "number" nor "docName" can be useful for producing other types of document but is out-of-scope for this specification. Content model: 1. One <front> element (Section 2.19) 2. One <middle> element (Section 2.23) 3. One optional <back> element (Section 2.7) 2.33.1. Attributes 2.33.1.1. category (optional) Document category (see Appendix A.1). Allowed values: o "std" o "bcp" Reschke Expires May 30, 2014 [Page 30] Internet-Draft XML2RFC November 2013 o "info" o "exp" o "historic" 2.33.1.2. consensus (optional) Affects the generated boilerplate. See [RFC5741] for more information. Allowed values: o "no" o "yes" 2.33.1.3. docName (optional) For Internet-Drafts, this specifies the draft name (which appears below the title). Note that the file extension is not part of the draft, so in general it should end with the current draft number ("-", plus two digits). Furthermore, it is good practice to disambiguate current editor copies from submitted drafts (for instance, by replacing the draft number with the string "latest"). See Section 7 of [IDGUIDE] for further information. 2.33.1.4. ipr (optional) Represents the Intellectual Property status of the document. See Appendix A.2 for details. Allowed values: o "full2026" Reschke Expires May 30, 2014 [Page 31] Internet-Draft XML2RFC November 2013 o "noDerivativeWorks2026" o "none" o "full3667" o "noModification3667" o "noDerivatives3667" o "full3978" o "noModification3978" o "noDerivatives3978" o "trust200811" o "noModificationTrust200811" o "noDerivativesTrust200811" o "trust200902" o "noModificationTrust200902" o "noDerivativesTrust200902" o "pre5378Trust200902" 2.33.1.5. iprExtract (optional) Identifies a Section within the document for which extraction "as-is" is explicitly allowed (only relevant for historic values of the "ipr" attribute). 2.33.1.6. number (optional) The number of the RFC to be produced. 2.33.1.7. obsoletes (optional) Reschke Expires May 30, 2014 [Page 32] Internet-Draft XML2RFC November 2013 A comma-separated list of RFC _numbers_ or Internet-Draft names. 2.33.1.8. seriesNo (optional) When producing a document within document series (such as "STD"): the number within that series. 2.33.1.9. submissionType (optional) The document stream. See Section 2 of [RFC5741] for details. Allowed values: o "IETF" (default) o "IAB" o "IRTF" o "independent" 2.33.1.10. updates (optional) A comma-separated list of RFC _numbers_ or Internet-Draft names. 2.33.1.11. xml:lang (optional) The natural language used in the document (defaults to "en"). See Section 2.12 of [XML] for more information. 2.33.2. Grammar Reschke Expires May 30, 2014 [Page 33] Internet-Draft XML2RFC November 2013 rfc = element rfc { attribute number { NUMBER }?, attribute obsoletes { NUMBERS }?, attribute updates { NUMBERS }?, attribute category ( "std" | "bcp" | "info" | "exp" | "historic" )?, attribute consensus ( "no" | "yes" )?, attribute seriesNo { NUMBER }?, attribute ipr ( "full2026" | "noDerivativeWorks2026" | "none" | "full3667" | "noModification3667" | "noDerivatives3667" | "full3978" | "noModification3978" | "noDerivatives3978" | "trust200811" | "noModificationTrust200811" | "noDerivativesTrust200811" | "trust200902" | "noModificationTrust200902" | "noDerivativesTrust200902" | "pre5378Trust200902" )?, attribute iprExtract { xsd:IDREF }?, attribute submissionType ( "IETF" | "IAB" | "IRTF" | "independent" )?, attribute docName { ATEXT }?, attribute xml:lang { ATEXT }?, front, middle, back? } 2.34. <section> Represents a section (when inside a <middle> element) or an appendix (when inside a <back> element). Sub-sections are created by nesting <section> elements inside <section> elements. This element appears as child element of: <back> (Section 2.7), <middle> (Section 2.23), and <section> (Section 2.34). Content model: Reschke Expires May 30, 2014 [Page 34] Internet-Draft XML2RFC November 2013 1. In any order: * <t> elements (Section 2.38) * <figure> elements (Section 2.17) * <texttable> elements (Section 2.39) * <iref> elements (Section 2.20) 2. Optional <section> elements (Section 2.34) 2.34.1. Attributes 2.34.1.1. anchor (optional) [[element.section.attribute.anchor.missing: attribute description missing]] 2.34.1.2. title (mandatory) The title of the section. 2.34.1.3. toc (optional) Determines whether the section is included in the Table Of Contents. [[anchor20: Need to consider inheritance.]] Allowed values: o "include" o "exclude" o "default" (default) 2.34.2. Grammar Reschke Expires May 30, 2014 [Page 35] Internet-Draft XML2RFC November 2013 section = element section { attribute anchor { xsd:ID }?, attribute title { ATEXT }, attribute toc ( "include" | "exclude" | "default" )?, (t | figure | texttable | iref)*, section* } 2.35. <seriesInfo> Specifies the document series in which this document appears, and also specifies an identifier within that series. This element appears as child element of: <reference> (Section 2.30). Content model: this element does not have any contents. 2.35.1. Attributes 2.35.1.1. name (mandatory) The name of the series. The following names trigger specific processing (such as for auto- generating links, and adding descriptions such as "work in progress"): "BCP", "FYI", "Internet-Draft", "RFC", and "STD". 2.35.1.2. value (mandatory) The identifier within the series specified by the "name" attribute. For BCPs, FYIs, RFCs, and STDs this is the number within the series. For Internet-Drafts, it is the full draft name (ending with the two- digit version number). 2.35.2. Grammar Reschke Expires May 30, 2014 [Page 36] Internet-Draft XML2RFC November 2013 seriesInfo = element seriesInfo { attribute name { ATEXT }, attribute value { ATEXT }, empty } 2.36. <spanx> [[element.spanx.missing: element description missing]] This element appears as child element of: <annotation> (Section 2.3), <c> (Section 2.8), <postamble> (Section 2.28), <preamble> (Section 2.29), and <t> (Section 2.38). Content model: only text content. 2.36.1. Attributes 2.36.1.1. style (optional) [[element.spanx.attribute.style.missing: attribute description missing]] 2.36.1.2. xml:space (optional) Determines whitespace handling. The default value is "preserve", but that value isn't really suitable for the use cases <spanx> is defined for (so this might change in future versions). See also Section 2.10 of [XML]. Allowed values: o "default" o "preserve" (default) Reschke Expires May 30, 2014 [Page 37] Internet-Draft XML2RFC November 2013 2.36.2. Grammar spanx = element spanx { attribute xml:space ( "default" | "preserve" )?, attribute style { ATEXT }?, CTEXT } 2.37. <street> Provides a street address. This element appears as child element of: <postal> (Section 2.27). Content model: only text content. 2.37.1. Grammar street = element street { CTEXT } 2.38. <t> Contains a paragraph of text. This element appears as child element of: <abstract> (Section 2.1), <list> (Section 2.22), <note> (Section 2.24), and <section> (Section 2.34). Content model: In any order: o Text o <list> elements (Section 2.22) o <figure> elements (Section 2.17) o <xref> elements (Section 2.45) o <eref> elements (Section 2.15) o <iref> elements (Section 2.20) Reschke Expires May 30, 2014 [Page 38] Internet-Draft XML2RFC November 2013 o <cref> elements (Section 2.12) o <spanx> elements (Section 2.36) o <vspace> elements (Section 2.43) 2.38.1. Attributes 2.38.1.1. anchor (optional) [[element.t.attribute.anchor.missing: attribute description missing]] 2.38.1.2. hangText (optional) [[element.t.attribute.hangText.missing: attribute description missing]] 2.38.2. Grammar t = element t { attribute anchor { xsd:ID }?, attribute hangText { ATEXT }?, (TEXT | \list | figure | xref | eref | iref | cref | spanx | vspace)* } 2.39. <texttable> Contains a table, consisting of an optional preamble, a header line, rows, and an optional postamble. This element appears as child element of: <section> (Section 2.34). Content model: Reschke Expires May 30, 2014 [Page 39] Internet-Draft XML2RFC November 2013 1. One optional <preamble> element (Section 2.29) 2. One or more <ttcol> elements (Section 2.41) 3. Optional <c> elements (Section 2.8) 4. One optional <postamble> element (Section 2.28) 2.39.1. Attributes 2.39.1.1. align (optional) Determines the horizontal alignment of the table. Allowed values: o "left" o "center" (default) o "right" 2.39.1.2. anchor (optional) [[element.texttable.attribute.anchor.missing: attribute description missing]] 2.39.1.3. style (optional) [[element.texttable.attribute.style.missing: attribute description missing]] Allowed values: o "all" o "none" o "headers" o "full" (default) Reschke Expires May 30, 2014 [Page 40] Internet-Draft XML2RFC November 2013 2.39.1.4. suppress-title (optional) [[element.texttable.attribute.suppress-title.missing: attribute description missing]] Allowed values: o "true" o "false" (default) 2.39.1.5. title (optional) [[element.texttable.attribute.title.missing: attribute description missing]] 2.39.2. Grammar texttable = element texttable { attribute anchor { xsd:ID }?, attribute title { ATEXT }?, attribute suppress-title ( "true" | "false" )?, attribute align ( "left" | "center" | "right" )?, attribute style ( "all" | "none" | "headers" | "full" )?, preamble?, ttcol+, c*, postamble? } 2.40. <title> Represents the document title. When this element appears in the <front> element of the current document, the title might also appear in page headers or footers. If it's long (~40 characters), the "abbrev" attribute is used to specified an abbreviated variant. This element appears as child element of: <front> (Section 2.19). Content model: only text content. Reschke Expires May 30, 2014 [Page 41] Internet-Draft XML2RFC November 2013 2.40.1. Attributes 2.40.1.1. abbrev (optional) Specifies an abbreviated variant of the document title. 2.40.2. Grammar title = element title { attribute abbrev { ATEXT }?, CTEXT } 2.41. <ttcol> Contains a column heading in a table. This element appears as child element of: <texttable> (Section 2.39). Content model: only text content. 2.41.1. Attributes 2.41.1.1. align (optional) Determines the horizontal alignment within the table column. Allowed values: o "left" (default) o "center" o "right" 2.41.1.2. width (optional) [[element.ttcol.attribute.width.missing: attribute description missing]] Reschke Expires May 30, 2014 [Page 42] Internet-Draft XML2RFC November 2013 2.41.2. Grammar ttcol = element ttcol { attribute width { ATEXT }?, attribute align ( "left" | "center" | "right" )?, CTEXT } 2.42. <uri> Contains a web address associated with the author. The contents should be a valid URI (see Section 3 of [RFC3986]). This element appears as child element of: <address> (Section 2.2). Content model: only text content. 2.42.1. Grammar uri = element uri { CTEXT } 2.43. <vspace> [[element.vspace.missing: element description missing]] This element appears as child element of: <t> (Section 2.38). Content model: this element does not have any contents. 2.43.1. Attributes 2.43.1.1. blankLines (optional) [[element.vspace.attribute.blankLines.missing: attribute description missing]] 2.43.2. Grammar Reschke Expires May 30, 2014 [Page 43] Internet-Draft XML2RFC November 2013 vspace = element vspace { attribute blankLines { NUMBER }?, empty } 2.44. <workgroup> This element is used to specify the Working Group the document originates from, if any. The recommended format is the official name of the Working Group (with some capitalization), plus the string "Working Group". In Internet-Drafts, this is used in the upper left corner of the boilerplate, replacing the "Network Working Group" string. This element appears as child element of: <front> (Section 2.19). Content model: only text content. 2.44.1. Grammar workgroup = element workgroup { CTEXT } 2.45. <xref> [[element.xref.missing: element description missing]] This element appears as child element of: <annotation> (Section 2.3), <c> (Section 2.8), <postamble> (Section 2.28), <preamble> (Section 2.29), and <t> (Section 2.38). Content model: only text content. 2.45.1. Attributes 2.45.1.1. format (optional) [[element.xref.attribute.format.missing: attribute description missing]] Allowed values: Reschke Expires May 30, 2014 [Page 44] Internet-Draft XML2RFC November 2013 o "counter" o "title" o "none" o "default" (default) 2.45.1.2. pageno (optional) Unused. It's unclear what the purpose of this attribute is; processors seem to ignore it and it never was documented. Allowed values: o "true" o "false" (default) 2.45.1.3. target (mandatory) [[element.xref.attribute.target.missing: attribute description missing]] 2.45.2. Grammar xref = element xref { attribute target { xsd:IDREF }, attribute pageno ( "true" | "false" )?, attribute format ( "counter" | "title" | "none" | "default" )?, CTEXT } 3. Special Unicode Code Points [[anchor29: Explain those code points where the processors implement something special, such as "nbsp".]] Reschke Expires May 30, 2014 [Page 45] Internet-Draft XML2RFC November 2013 4. Internationalization Considerations [[anchor30: TBD]] 5. Security Considerations [[anchor31: TBD]] 6. IANA Considerations [[anchor32: Register application/xml2rfc+xml.]] 7. Acknowledgments Thanks to everybody who reviewed this document and provided feedback and/or specification text, in particular Brian Carpenter and Paul Hoffman. We also thank Marshall T. Rose for both the original design and the reference implementation of the "xml2rfc" formatter. 8. References 8.1. Normative References [XML] Maler, E., Yergeau, F., Paoli, J., Sperberg-McQueen, M., and T. Bray, "Extensible Markup Language (XML) 1.0 (Fifth Edition)", W3C Recommendation REC-xml-20081126, November 2008, <http://www.w3.org/TR/2008/REC-xml-20081126/>. Latest version available at <http://www.w3.org/TR/xml>. 8.2. Informative References [IDGUIDE] Housley, R., "Guidelines to Authors of Internet- Drafts", December 2010, <http://www.ietf.org/id-info/guidelines.html>. [RFC2026] Bradner, S., "The Internet Standards Process -- Revision 3", BCP 9, RFC 2026, October 1996. [RFC2046] Freed, N. and N. Borenstein, "Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types", RFC 2046, November 1996. [RFC2397] Masinter, L., "The "data" URL scheme", RFC 2397, August 1998. Reschke Expires May 30, 2014 [Page 46] Internet-Draft XML2RFC November 2013 [RFC2629] Rose, M., "Writing I-Ds and RFCs using XML", RFC 2629, June 1999. [RFC3966] Schulzrinne, H., "The tel URI for Telephone Numbers", RFC 3966, December 2004. [RFC3986] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform Resource Identifier (URI): Generic Syntax", STD 66, RFC 3986, January 2005. [RFC5598] Crocker, D., "Internet Mail Architecture", RFC 5598, July 2009. PDF version: <http://www.rfc-editor.org/rfc/rfc5598.pdf> [RFC5741] Daigle, L. and O. Kolkman, "RFC Streams, Headers, and Boilerplates", RFC 5741, December 2009. [RFC6068] Duerst, M., Masinter, L., and J. Zawinski, "The 'mailto' URI Scheme", RFC 6068, October 2010. [RFCPOLICY] RFC Editor, "RFC Editorial Guidelines and Procedures", February 2012, <http://www.rfc-editor.org/policy.html>. [RFCSTYLE] Braden, R., Ginoza, S., and A. Hagens, "RFC Document Style (draft 09)", September 2009, <http://www.rfc-editor.org/rfc-style-guide/rfc-style>. [RNC] Clark, J., "RELAX NG Compact Syntax", OASIS , November 2002, <http://www.oasis-open.org/committees/ relax-ng/compact-20021121.html>. [TLP2.0] IETF Trust, "Legal Provisions Relating to IETF Documents", February 2009, <http://trustee.ietf.org/ license-info/IETF-Trust-License-Policy-20090215.htm>. [TLP3.0] IETF Trust, "Legal Provisions Relating to IETF Documents", September 2009, <http://trustee.ietf.org/ license-info/IETF-Trust-License-Policy-20090912.htm>. [TLP4.0] IETF Trust, "Legal Provisions Relating to IETF Documents", December 2009, <http://trustee.ietf.org/ license-info/IETF-Trust-License-Policy-20091228.htm>. Appendix A. Front Page Generation Reschke Expires May 30, 2014 [Page 47] Internet-Draft XML2RFC November 2013 A.1. The /rfc/@category Attribute For RFCs, the "category" determines the "maturity level" (see Section 4 of [RFC2026]). The allowed values are "std" for "Standards Track", "bcp" for "BCP", "info" for "Informational", "exp" for "Experimental", and "historic" for - surprise - "Historic". For Internet-Drafts, the category attribute is not needed, but will appear on the front page as "Intended Status". Supplying this information can be useful to reviewers. A.2. The /rfc/@ipr Attribute This attribute value can take a long list of values, each of which describes an IPR policy for the document. This attribute's values are not the result of a grand plan, but remain simply for historic reasons. Of these values, only a few are currently in use; all others are supported by the various tools for backwards compatibility with old source files. Note: some variations of the boilerplate are selected based on the document's date; therefore it is important to specify the "year", "month" and "day" attributes of the "<date>" element when archiving the XML source of an Internet-Draft on the day of submission. _Disclaimer: THIS ONLY PROVIDES IMPLEMENTATION INFORMATION. IF YOU NEED LEGAL ADVICE, PLEASE CONTACT A LAWYER._ For further information, refer to <http://trustee.ietf.org/docs/IETF-Copyright-FAQ.pdf>. For the current "Status Of This Memo" text, the "submissionType" attribute determines whether a statement about "Code Components" is inserted (which is the case for the value "IETF", which is the default). Other values, such as "independent", suppress this part of the text. A.2.1. Current Values: '*trust200902' The name for these values refers to the "IETF TRUST Legal Provisions Relating to IETF Documents", sometimes simply called the "TLP, that went into effect on February 15, 2009 ([TLP2.0]). Updates to this document were published on September 12, 2009 ([TLP3.0]) and on December 28, 2009 ([TLP4.0]), modifying the license for code components (see <http://trustee.ietf.org/license-info/> for further information). The actual text is located in Section 6 ("Text To Be Included in IETF Documents") of these documents. The tools will automatically produce the "correct" text depending on Reschke Expires May 30, 2014 [Page 48] Internet-Draft XML2RFC November 2013 the document's date information (see above): +----------+--------------------------------+ | TLP | starting with publication date | +----------+--------------------------------+ | [TLP3.0] | 2009-11-01 | | [TLP4.0] | 2010-04-01 | +----------+--------------------------------+ A.2.1.1. trust200902 This should be the default, unless one of the more specific '*trust200902' values is a better fit. It produces the text in Sections 6.a and 6.b of the TLP. A.2.1.2. noModificationTrust200902 This produces additional text from Section 6.c.i of the TLP: This document may not be modified, and derivative works of it may not be created, except to format it for publication as an RFC or to translate it into languages other than English. Note: this clause is incompatible with RFCs that are published on the Standards Track. A.2.1.3. noDerivativesTrust200902 This produces the additional text from Section 6.c.ii of the TLP: This document may not be modified, and derivative works of it may not be created, and it may not be published except as an Internet- Draft. Note: this clause is incompatible with RFCs that are published on the Standards Track. A.2.1.4. pre5378Trust200902 This produces the additional text from Section 6.c.iii of the TLP, frequently called the "pre-5378 escape clause": This document may contain material from IETF Documents or IETF Contributions published or made publicly available before November 10, 2008. The person(s) controlling the copyright in some of this material may not have granted the IETF Trust the right to allow modifications of such material outside the IETF Standards Process. Without obtaining an adequate license from the person(s) Reschke Expires May 30, 2014 [Page 49] Internet-Draft XML2RFC November 2013 controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English. See Section 4 of <http://trustee.ietf.org/docs/IETF-Copyright-FAQ.pdf> for further information about when to use this value. Note: this text appears under "Copyright Notice", unless the document was published before November 2009, in which case it appears under "Status Of This Memo". A.2.2. Historic Values A.2.2.1. Historic Values: '*trust200811' The attribute values "trust200811", "noModificationTrust200811" and "noDerivativesTrust200811" are similar to their "trust200902" counterparts, except that they use text specified in <http:// trustee.ietf.org/license-info/archive/ IETF-Trust-License-Policy_11-10-08.pdf>. A.2.2.2. Historic Values: '*3978' The attribute values "full3978", "noModification3978" and "noDerivatives3978" are similar to their counterparts above, except that they use text specified in RFC 3978 (March 2005). A.2.2.3. Historic Values: '*3667' The attribute values "full3667", "noModification3667" and "noDerivatives3667" are similar to their counterparts above, except that they use text specified in RFC 3667 (February 2004). A.2.2.4. Historic Values: '*2026' The attribute values "full2026" and "noDerivativeWorks2026" are similar to their counterparts above, except that they use text specified in RFC 2026 (October 1996). The special value "none" was also used back then, and denied the IETF any rights beyond publication as Internet-Draft. Reschke Expires May 30, 2014 [Page 50] Internet-Draft XML2RFC November 2013 Appendix B. Changes from RFC 2629 ('v1') B.1. Removed Elements The <appendix> element has been removed; to generate an appendix, place a <section> inside <back>. B.2. Changed Defaults Many attributes have lost their "default" value; this is to avoid having document semantics differ based on whether a DTD was specified and evaluated. Processors will handle absent values the way the default value was specified before. B.3. Changed Elements <artwork>: Has a set of new attributes: "name", "type", "src", "align", "alt", "width", and "height". (Section 2.5) <author>: The <organization> element is now optional. The "role" attribute was added. (Section 2.6) <date>: All attributes are now optional. (Section 2.13) <figure>: Has a set of new attributes: "suppress-title", "src", "align", "alt", "width", and "height". (Section 2.17) <iref>: Has a new "primary" attribute. (Section 2.20) <list>: The "style" attribute isn't restricted to a set of enumerated values anymore. The "hangIndent" and "counter" attributes have been added. (Section 2.22) <rfc>: The "ipr" attribute has gained additional values. The attributes "consensus", "iprExtract", "submissionType", and "xml: lang" have been added. (Section 2.33) <reference>: <annotation> allows adding prose to a reference. (Section 2.30) <references>: Can now appear multiple times, and carry a "title" attribute (so that normative and informative references can be split). (Section 2.31) <section>: The new "toc" attribute controls whether it will appear in the Table Of Contents. <iref> can now appear as direct child element. (Section 2.34) Reschke Expires May 30, 2014 [Page 51] Internet-Draft XML2RFC November 2013 <t>: The "anchor" attribute can now be used as well, however there are restrictions on how they can be referred to. (Section 2.38) B.4. New Elements The following elements have been added: <annotation> (Section 2.3), <c> (Section 2.8), <cref> (Section 2.12), <format> (Section 2.18), <spanx> (Section 2.36), <texttable> (Section 2.39). Appendix C. Relax NG Schema namespace a = "http://relaxng.org/ns/compatibility/annotations/1.0" NUMBER = string NUMBERS = string DAY = string MONTH = string YEAR = string URI = string ATEXT = string CTEXT = text TEXT = text rfc = element rfc { attribute number { NUMBER }?, [ a:defaultValue = "" ] attribute obsoletes { NUMBERS }?, [ a:defaultValue = "" ] attribute updates { NUMBERS }?, attribute category { "std" | "bcp" | "info" | "exp" | "historic" }?, attribute consensus { "no" | "yes" }?, attribute seriesNo { NUMBER }?, attribute ipr { "full2026" | "noDerivativeWorks2026" | "none" | "full3667" | "noModification3667" | "noDerivatives3667" | "full3978" | "noModification3978" | "noDerivatives3978" | "trust200811" | "noModificationTrust200811" | "noDerivativesTrust200811" | "trust200902" | "noModificationTrust200902" | "noDerivativesTrust200902" Reschke Expires May 30, 2014 [Page 52] Internet-Draft XML2RFC November 2013 | "pre5378Trust200902" }?, attribute iprExtract { xsd:IDREF }?, [ a:defaultValue = "IETF" ] attribute submissionType { "IETF" | "IAB" | "IRTF" | "independent" }?, attribute docName { ATEXT }?, [ a:defaultValue = "en" ] attribute xml:lang { ATEXT }?, front, middle, back? } front = element front { title, author+, date, area*, workgroup*, keyword*, abstract?, note* } title = element title { attribute abbrev { ATEXT }?, CTEXT } author = element author { attribute initials { ATEXT }?, attribute surname { ATEXT }?, attribute fullname { ATEXT }?, attribute role { "editor" }?, organization?, address? } organization = element organization { attribute abbrev { ATEXT }?, CTEXT } address = element address { postal?, phone?, facsimile?, email?, uri? } postal = element postal { street+, (city | region | code | country)* } street = element street { CTEXT } city = element city { CTEXT } region = element region { CTEXT } code = element code { CTEXT } country = element country { CTEXT } phone = element phone { CTEXT } facsimile = element facsimile { CTEXT } Reschke Expires May 30, 2014 [Page 53] Internet-Draft XML2RFC November 2013 email = element email { CTEXT } uri = element uri { CTEXT } date = element date { attribute day { DAY }?, attribute month { MONTH }?, attribute year { YEAR }?, empty } area = element area { CTEXT } workgroup = element workgroup { CTEXT } keyword = element keyword { CTEXT } abstract = element abstract { t+ } note = element note { attribute title { ATEXT }, t+ } middle = element middle { section+ } section = element section { attribute anchor { xsd:ID }?, attribute title { ATEXT }, [ a:defaultValue = "default" ] attribute toc { "include" | "exclude" | "default" }?, (t | figure | texttable | iref)*, section* } t = element t { attribute anchor { xsd:ID }?, attribute hangText { ATEXT }?, (TEXT | \list | figure | xref | eref | iref | cref | spanx | vspace)* } \list = element list { attribute style { ATEXT }?, attribute hangIndent { NUMBER }?, attribute counter { ATEXT }?, t+ Reschke Expires May 30, 2014 [Page 54] Internet-Draft XML2RFC November 2013 } xref = element xref { attribute target { xsd:IDREF }, [ a:defaultValue = "false" ] attribute pageno { "true" | "false" }?, [ a:defaultValue = "default" ] attribute format { "counter" | "title" | "none" | "default" }?, CTEXT } eref = element eref { attribute target { URI }, CTEXT } iref = element iref { attribute item { ATEXT }, [ a:defaultValue = "" ] attribute subitem { ATEXT }?, [ a:defaultValue = "false" ] attribute primary { "true" | "false" }?, empty } cref = element cref { attribute anchor { xsd:ID }?, attribute source { ATEXT }?, CTEXT } spanx = element spanx { [ a:defaultValue = "preserve" ] attribute xml:space { "default" | "preserve" }?, [ a:defaultValue = "emph" ] attribute style { ATEXT }?, CTEXT } vspace = element vspace { [ a:defaultValue = "0" ] attribute blankLines { NUMBER }?, empty } figure = element figure { attribute anchor { xsd:ID }?, [ a:defaultValue = "" ] attribute title { ATEXT }?, [ a:defaultValue = "false" ] attribute suppress-title { "true" | "false" }?, attribute src { URI }?, Reschke Expires May 30, 2014 [Page 55] Internet-Draft XML2RFC November 2013 [ a:defaultValue = "left" ] attribute align { "left" | "center" | "right" }?, [ a:defaultValue = "" ] attribute alt { ATEXT }?, [ a:defaultValue = "" ] attribute width { ATEXT }?, [ a:defaultValue = "" ] attribute height { ATEXT }?, iref*, preamble?, artwork, postamble? } preamble = element preamble { (TEXT | xref | eref | iref | cref | spanx)* } artwork = element artwork { [ a:defaultValue = "preserve" ] attribute xml:space { "default" | "preserve" }?, [ a:defaultValue = "" ] attribute name { ATEXT }?, [ a:defaultValue = "" ] attribute type { ATEXT }?, attribute src { URI }?, [ a:defaultValue = "left" ] attribute align { "left" | "center" | "right" }?, [ a:defaultValue = "" ] attribute alt { ATEXT }?, [ a:defaultValue = "" ] attribute width { ATEXT }?, [ a:defaultValue = "" ] attribute height { ATEXT }?, TEXT* } postamble = element postamble { (TEXT | xref | eref | iref | cref | spanx)* } texttable = element texttable { attribute anchor { xsd:ID }?, [ a:defaultValue = "" ] attribute title { ATEXT }?, [ a:defaultValue = "false" ] attribute suppress-title { "true" | "false" }?, [ a:defaultValue = "center" ] attribute align { "left" | "center" | "right" }?, [ a:defaultValue = "full" ] attribute style { "all" | "none" | "headers" | "full" }?, preamble?, ttcol+, c*, postamble? } ttcol = element ttcol { attribute width { ATEXT }?, [ a:defaultValue = "left" ] attribute align { "left" | "center" | "right" }?, Reschke Expires May 30, 2014 [Page 56] Internet-Draft XML2RFC November 2013 CTEXT } c = element c { (TEXT | xref | eref | iref | cref | spanx)* } back = element back { references*, section* } references = element references { [ a:defaultValue = "References" ] attribute title { ATEXT }?, reference+ } reference = element reference { attribute anchor { xsd:ID }?, attribute target { URI }?, front, seriesInfo*, format*, annotation* } seriesInfo = element seriesInfo { attribute name { ATEXT }, attribute value { ATEXT }, empty } format = element format { attribute target { URI }?, attribute type { ATEXT }, attribute octets { NUMBER }?, empty } annotation = element annotation { (TEXT | xref | eref | iref | cref | spanx)* } start = rfc Appendix D. Proposed Future Changes for 'v3' [[anchor40: The list below is just a starting point, see <https://www.rfc-editor.org/rse/wiki/doku.php?id=design:xml-tags> for more.]] D.1. Contact Information If contact information is changed to allow non-ASCII characters: add a place for a ASCII fallback (probably just for the author names). The content model for <postal> ought to be more strict to allow at Reschke Expires May 30, 2014 [Page 57] Internet-Draft XML2RFC November 2013 most one of <city>, <region>, <code>, and <country>. It should be possible to have multiple <uri> elements. <facsimile> looks outdated, while a container for IM (messaging) URIs is missing. Maybe this area needs to be aligned with vCard. Section 4.8 of [RFCSTYLE] hints at a "Contributors" Section that could supply contact information similar to the one in the auto- generated "Authors' Address" Section. Consider how to capture contributor contact information (probably not using <author> to avoid confusion). Furthermore, consider ways to augment the contact information section with prose. D.2. Figures Cleanup the set of overlapping attributes between <figure> and <artwork>. For artwork that consists of a sequence of items (such as messages in a protocol example), it would be good if a <figure> element could contain multiple <artwork> elements (to assist code to find good places for page breaks). Extend <figure> to support different types of artwork (such as by specifying certain type attribute values, see <http://greenbytes.de/ tech/webdav/rfc2629xslt/rfc2629xslt.html#artwork.types>), and also avoid having to markup code (such as ABNF) as "artwork". It would be good if "code components" could be marked as such. Finally, even in preformatted text use of markup could be useful to support (a) references, or (b) highlighting the important bits (<http ://greenbytes.de/tech/webdav/rfc2629xslt/ rfc2629xslt.html#ext-rfc2629.artwork>). D.3. Linking Extend <xref> so that subsection/anchors can be specified (see <http: //greenbytes.de/tech/webdav/rfc2629xslt/ rfc2629xslt.html#ext-rfc2629.xref>). Remove the "pageno" attribute which seems to be both undocumented and non-functional. D.4. Lists Allow multiple paragraphs in list items; eliminating the need to use <vspace> (see <http://greenbytes.de/tech/webdav/rfc2629xslt/ rfc2629xslt.html#ext.element.lt>). Reschke Expires May 30, 2014 [Page 58] Internet-Draft XML2RFC November 2013 D.5. References Allow overriding the "anchor" attribute of an included <reference> element. Add a way to add prose to a reference that avoids abuse of <seriesInfo>. Allow <reference>s that identify a document set such as a BCP. Deprecate or remove the <format> element; right now it's not used for the generation of the plain text document anyway. It is unclear why the "anchor" attribute is optional. D.6. Archival Considerations When this vocabulary becomes the canonical RFC format, it will need to be able to capture all generated information, such as section/ figure/table numbers, plus any auto-generated boilerplate (copyright statements etc.). D.7. Document Metadata Extend the concept of language tagging to at least examples and contact information to address potential japanese/chinese font confusion. Provide a way to indicate the intended level on the standards track. Include feedback information in a way so that generated documents can provide usable feedback links (see <http://greenbytes.de/tech/webdav/ rfc2629xslt/rfc2629xslt.html#ext.element.feedback>). D.8. Misc. Make the <date> element optional; all of its content is optional already. <spanx> has both a weird whitespace model ("preserve") and problematic styling. Consider to deprecate it in favor of elements such as <em> and <code> (where the name "code" is already in use for region codes). Indented paragraphs currently can be created by abusing the <list>. It would be good to have a special element for this purpose. Provide a special element for generating citations. Reschke Expires May 30, 2014 [Page 59] Internet-Draft XML2RFC November 2013 The content model for <cref> should be extended to allow more flow elements, such as <xref> and <eref>. Appendix E. Comparison Of Vocabularies (to be removed before publication as RFC) With comments being stripped; using "diff -C100" to add change marks. E.1. RFC 2629 ('v1') RelaxNG Grammar (from Appendix B of [RFC2629], converted using "trang" into Relag NG Compact Notation [RNC]) namespace a = "http://relaxng.org/ns/compatibility/annotations/1.0" NUMBER = string NUMBERS = string DAY = string MONTH = string YEAR = string URI = string ATEXT = string CTEXT = text TEXT = text rfc = element rfc { attribute number { NUMBER }?, [ a:defaultValue = "" ] attribute obsoletes { NUMBERS }?, [ a:defaultValue = "" ] attribute updates { NUMBERS }?, - [ a:defaultValue = "info" ] attribute category { "std" | "bcp" | "info" | "exp" | "historic" }?, attribute seriesNo { NUMBER }?, ! attribute ipr { "full2026" | "noDerivativeWorks2026" | "none" }?, attribute docName { ATEXT }?, front, middle, back? } front = element front { title, author+, date, area*, workgroup*, keyword*, abstract?, note* } title = element title { attribute abbrev { ATEXT }?, CTEXT } author = Reschke Expires May 30, 2014 [Page 60] Internet-Draft XML2RFC November 2013 element author { attribute initials { ATEXT }?, attribute surname { ATEXT }?, attribute fullname { ATEXT }?, ! organization, address? } organization = element organization { attribute abbrev { ATEXT }?, CTEXT } address = element address { postal?, phone?, facsimile?, email?, uri? } postal = element postal { street+, (city | region | code | country)* } street = element street { CTEXT } city = element city { CTEXT } region = element region { CTEXT } code = element code { CTEXT } country = element country { CTEXT } phone = element phone { CTEXT } facsimile = element facsimile { CTEXT } email = element email { CTEXT } uri = element uri { CTEXT } date = element date { attribute day { DAY }?, ! attribute month { MONTH }, ! attribute year { YEAR }, empty } area = element area { CTEXT } workgroup = element workgroup { CTEXT } keyword = element keyword { CTEXT } abstract = element abstract { t+ } note = element note { attribute title { ATEXT }, t+ } middle = element middle { section+ } section = element section { attribute anchor { xsd:ID }?, attribute title { ATEXT }, ! (t | figure | section)* } t = element t { Reschke Expires May 30, 2014 [Page 61] Internet-Draft XML2RFC November 2013 attribute hangText { ATEXT }?, ! (TEXT | \list | figure | xref | eref | iref | vspace)* } \list = element list { ! [ a:defaultValue = "empty" ] ! attribute style { "numbers" | "symbols" | "hanging" | "empty" }?, t+ } xref = element xref { attribute target { xsd:IDREF }, [ a:defaultValue = "false" ] attribute pageno { "true" | "false" }?, CTEXT } eref = element eref { attribute target { URI }, CTEXT } iref = element iref { attribute item { ATEXT }, [ a:defaultValue = "" ] attribute subitem { ATEXT }?, empty } vspace = element vspace { [ a:defaultValue = "0" ] attribute blankLines { NUMBER }?, empty } figure = element figure { attribute anchor { xsd:ID }?, [ a:defaultValue = "" ] attribute title { ATEXT }?, preamble?, artwork, postamble? } ! preamble = element preamble { (TEXT | xref | eref | iref)* } artwork = element artwork { [ a:defaultValue = "preserve" ] attribute xml:space { "default" | "preserve" }?, TEXT* } ! postamble = element postamble { (TEXT | xref | eref | iref)* } ! back = element back { references?, section* } Reschke Expires May 30, 2014 [Page 62] Internet-Draft XML2RFC November 2013 ! references = element references { reference+ } reference = element reference { attribute anchor { xsd:ID }?, attribute target { URI }?, front, ! seriesInfo* } seriesInfo = element seriesInfo { attribute name { ATEXT }, attribute value { ATEXT }, empty } start = rfc E.2. Current ('v2') RelaxNG Grammar namespace a = "http://relaxng.org/ns/compatibility/annotations/1.0" NUMBER = string NUMBERS = string DAY = string MONTH = string YEAR = string URI = string ATEXT = string CTEXT = text TEXT = text rfc = element rfc { attribute number { NUMBER }?, [ a:defaultValue = "" ] attribute obsoletes { NUMBERS }?, [ a:defaultValue = "" ] attribute updates { NUMBERS }?, attribute category { "std" | "bcp" | "info" | "exp" | "historic" }?, + attribute consensus { "no" | "yes" }?, attribute seriesNo { NUMBER }?, ! attribute ipr { ! "full2026" ! | "noDerivativeWorks2026" ! | "none" ! | "full3667" ! | "noModification3667" ! | "noDerivatives3667" ! | "full3978" ! | "noModification3978" ! | "noDerivatives3978" ! | "trust200811" Reschke Expires May 30, 2014 [Page 63] Internet-Draft XML2RFC November 2013 ! | "noModificationTrust200811" ! | "noDerivativesTrust200811" ! | "trust200902" ! | "noModificationTrust200902" ! | "noDerivativesTrust200902" ! | "pre5378Trust200902" ! }?, ! attribute iprExtract { xsd:IDREF }?, ! [ a:defaultValue = "IETF" ] ! attribute submissionType { ! "IETF" | "IAB" | "IRTF" | "independent" ! }?, attribute docName { ATEXT }?, + [ a:defaultValue = "en" ] attribute xml:lang { ATEXT }?, front, middle, back? } front = element front { title, author+, date, area*, workgroup*, keyword*, abstract?, note* } title = element title { attribute abbrev { ATEXT }?, CTEXT } author = element author { attribute initials { ATEXT }?, attribute surname { ATEXT }?, attribute fullname { ATEXT }?, ! attribute role { "editor" }?, ! organization?, address? } organization = element organization { attribute abbrev { ATEXT }?, CTEXT } address = element address { postal?, phone?, facsimile?, email?, uri? } postal = element postal { street+, (city | region | code | country)* } street = element street { CTEXT } city = element city { CTEXT } region = element region { CTEXT } code = element code { CTEXT } country = element country { CTEXT } Reschke Expires May 30, 2014 [Page 64] Internet-Draft XML2RFC November 2013 phone = element phone { CTEXT } facsimile = element facsimile { CTEXT } email = element email { CTEXT } uri = element uri { CTEXT } date = element date { attribute day { DAY }?, ! attribute month { MONTH }?, ! attribute year { YEAR }?, empty } area = element area { CTEXT } workgroup = element workgroup { CTEXT } keyword = element keyword { CTEXT } abstract = element abstract { t+ } note = element note { attribute title { ATEXT }, t+ } middle = element middle { section+ } section = element section { attribute anchor { xsd:ID }?, attribute title { ATEXT }, ! [ a:defaultValue = "default" ] ! attribute toc { "include" | "exclude" | "default" }?, ! (t | figure | texttable | iref)*, ! section* } t = element t { + attribute anchor { xsd:ID }?, attribute hangText { ATEXT }?, ! (TEXT ! | \list ! | figure ! | xref ! | eref ! | iref ! | cref ! | spanx ! | vspace)* } \list = element list { ! attribute style { ATEXT }?, ! attribute hangIndent { NUMBER }?, Reschke Expires May 30, 2014 [Page 65] Internet-Draft XML2RFC November 2013 ! attribute counter { ATEXT }?, t+ } xref = element xref { attribute target { xsd:IDREF }, [ a:defaultValue = "false" ] attribute pageno { "true" | "false" }?, + [ a:defaultValue = "default" ] + attribute format { "counter" | "title" | "none" | "default" }?, CTEXT } eref = element eref { attribute target { URI }, CTEXT } iref = element iref { attribute item { ATEXT }, [ a:defaultValue = "" ] attribute subitem { ATEXT }?, + [ a:defaultValue = "false" ] + attribute primary { "true" | "false" }?, empty } + cref = + element cref { + attribute anchor { xsd:ID }?, + attribute source { ATEXT }?, + CTEXT + } + spanx = + element spanx { + [ a:defaultValue = "preserve" ] + attribute xml:space { "default" | "preserve" }?, + [ a:defaultValue = "emph" ] attribute style { ATEXT }?, + CTEXT + } vspace = element vspace { [ a:defaultValue = "0" ] attribute blankLines { NUMBER }?, empty } figure = element figure { attribute anchor { xsd:ID }?, [ a:defaultValue = "" ] attribute title { ATEXT }?, + [ a:defaultValue = "false" ] + attribute suppress-title { "true" | "false" }?, Reschke Expires May 30, 2014 [Page 66] Internet-Draft XML2RFC November 2013 + attribute src { URI }?, + [ a:defaultValue = "left" ] + attribute align { "left" | "center" | "right" }?, + [ a:defaultValue = "" ] attribute alt { ATEXT }?, + [ a:defaultValue = "" ] attribute width { ATEXT }?, + [ a:defaultValue = "" ] attribute height { ATEXT }?, + iref*, preamble?, artwork, postamble? } ! preamble = ! element preamble { (TEXT | xref | eref | iref | cref | spanx)* } artwork = element artwork { [ a:defaultValue = "preserve" ] attribute xml:space { "default" | "preserve" }?, + [ a:defaultValue = "" ] attribute name { ATEXT }?, + [ a:defaultValue = "" ] attribute type { ATEXT }?, + attribute src { URI }?, + [ a:defaultValue = "left" ] + attribute align { "left" | "center" | "right" }?, + [ a:defaultValue = "" ] attribute alt { ATEXT }?, + [ a:defaultValue = "" ] attribute width { ATEXT }?, + [ a:defaultValue = "" ] attribute height { ATEXT }?, TEXT* } ! postamble = ! element postamble { (TEXT | xref | eref | iref | cref | spanx)* } ! texttable = ! element texttable { ! attribute anchor { xsd:ID }?, ! [ a:defaultValue = "" ] attribute title { ATEXT }?, ! [ a:defaultValue = "false" ] ! attribute suppress-title { "true" | "false" }?, ! [ a:defaultValue = "center" ] ! attribute align { "left" | "center" | "right" }?, ! [ a:defaultValue = "full" ] ! attribute style { "all" | "none" | "headers" | "full" }?, ! preamble?, ! ttcol+, ! c*, ! postamble? ! } ! ttcol = ! element ttcol { ! attribute width { ATEXT }?, ! [ a:defaultValue = "left" ] Reschke Expires May 30, 2014 [Page 67] Internet-Draft XML2RFC November 2013 ! attribute align { "left" | "center" | "right" }?, ! CTEXT ! } ! c = element c { (TEXT | xref | eref | iref | cref | spanx)* } ! back = element back { references*, section* } ! references = ! element references { ! [ a:defaultValue = "References" ] attribute title { ATEXT }?, ! reference+ ! } reference = element reference { attribute anchor { xsd:ID }?, attribute target { URI }?, front, ! seriesInfo*, ! format*, ! annotation* } seriesInfo = element seriesInfo { attribute name { ATEXT }, attribute value { ATEXT }, empty } + format = + element format { + attribute target { URI }?, + attribute type { ATEXT }, + attribute octets { NUMBER }?, + empty + } + annotation = + element annotation { (TEXT | xref | eref | iref | cref | spanx)* } start = rfc Index A abbrev attribute in organization element 25 in title element 42 abstract element 4 inside front 21 address element 5 inside author 10 align attribute in artwork element 7 Reschke Expires May 30, 2014 [Page 68] Internet-Draft XML2RFC November 2013 in figure element 17 in texttable element 40 in ttcol element 42 alt attribute in artwork element 8 in figure element 18 anchor attribute in cref element 14 in figure element 18 in reference element 28 in section element 35 in t element 39 in texttable element 40 annotation element 5 inside reference 28 area element 6 inside front 21 artwork element 7 align attribute 7 alt attribute 8 height attribute 8 inside figure 17 name attribute 8 src attribute 8 type attribute 9 width attribute 9 xml:space attribute 9 Attributes abbrev 25, 42 align 7, 17, 40, 42 alt 8, 18 anchor 14, 18, 28, 35, 39-40 blankLines 43 category 30 consensus 31 counter 23 day 15 docName 31 format 44 fullname 10 hangIndent 23 hangText 39 height 8, 18 initials 11 ipr 31 iprExtract 32 item 22 month 15 Reschke Expires May 30, 2014 [Page 69] Internet-Draft XML2RFC November 2013 name 8, 36 number 32 obsoletes 32 octets 20 pageno 45 primary 22 role 11 seriesNo 33 source 14 src 8, 18 style 23, 37, 40 subitem 22 submissionType 33 suppress-title 18, 41 surname 11 target 16, 20, 28, 45 title 19, 24, 29, 35, 41 toc 35 type 9, 20 updates 33 value 36 width 9, 19, 42 xml:lang 33 xml:space 9, 37 year 15 author element 10 fullname attribute 10 initials attribute 11 inside front 20 role attribute 11 surname attribute 11 B back element 11 inside rfc 30 blankLines attribute in vspace element 43 C c element 12 inside texttable 40 category attribute in rfc element 30 city element 13 inside postal 26 code element 13 inside postal 26 consensus attribute Reschke Expires May 30, 2014 [Page 70] Internet-Draft XML2RFC November 2013 in rfc element 31 counter attribute in list element 23 country element 13 inside postal 26 cref element 14 anchor attribute 14 inside annotation 6 inside c 12 inside postamble 27 inside preamble 27 inside t 39 source attribute 14 D date element 14 day attribute 15 inside front 20 month attribute 15 year attribute 15 day attribute in date element 15 docName attribute in rfc element 31 E Elements abstract 4, 21 address 5, 10 annotation 5, 28 area 6, 21 artwork 7, 17 author 10, 20 back 11, 30 c 12, 40 city 13, 26 code 13, 26 country 13, 26 cref 6, 12, 14, 27, 39 date 14, 20 email 5, 16 eref 6, 12, 16, 27, 38 facsimile 5, 17 figure 17, 35, 38 format 19, 28 front 20, 28, 30 iref 6, 12, 17, 21, 27, 35, 38 keyword 21-22 Reschke Expires May 30, 2014 [Page 71] Internet-Draft XML2RFC November 2013 list 23, 38 middle 24, 30 note 21, 24 organization 10, 25 phone 5, 25 postal 5, 26 postamble 17, 26, 40 preamble 17, 27, 40 reference 28-29 references 12, 29 region 26, 30 rfc 30 section 12, 24, 34-35 seriesInfo 28, 36 spanx 6, 12, 27, 37, 39 street 26, 38 t 5, 23-24, 35, 38 texttable 35, 39 title 20, 41 ttcol 40, 42 uri 5, 43 vspace 39, 43 workgroup 21, 44 xref 6, 12, 27, 38, 44 email element 16 inside address 5 eref element 16 inside annotation 6 inside c 12 inside postamble 27 inside preamble 27 inside t 38 target attribute 16 F facsimile element 17 inside address 5 figure element 17 align attribute 17 alt attribute 18 anchor attribute 18 height attribute 18 inside section 35 inside t 38 src attribute 18 suppress-title attribute 18 title attribute 19 width attribute 19 Reschke Expires May 30, 2014 [Page 72] Internet-Draft XML2RFC November 2013 format attribute in xref element 44 format element 19 inside reference 28 octets attribute 20 target attribute 20 type attribute 20 front element 20 inside reference 28 inside rfc 30 fullname attribute in author element 10 H hangIndent attribute in list element 23 hangText attribute in t element 39 height attribute in artwork element 8 in figure element 18 I initials attribute in author element 11 ipr attribute '*2026' 50 '*3667' 50 '*3978' 50 '*trust200811' 50 '*trust200902' 48 'noDerivativesTrust200902' 49 'noModificationTrust200902' 49 'pre5378Trust200902' 49 'trust200902' 49 in rfc element 31 iprExtract attribute in rfc element 32 iref element 21 inside annotation 6 inside c 12 inside figure 17 inside postamble 27 inside preamble 27 inside section 35 inside t 38 item attribute 22 primary attribute 22 Reschke Expires May 30, 2014 [Page 73] Internet-Draft XML2RFC November 2013 subitem attribute 22 item attribute in iref element 22 K keyword element 22 inside front 21 L list element 23 counter attribute 23 hangIndent attribute 23 inside t 38 style attribute 23 M middle element 24 inside rfc 30 month attribute in date element 15 N name attribute in artwork element 8 in seriesInfo element 36 note element 24 inside front 21 title attribute 24 number attribute in rfc element 32 O obsoletes attribute in rfc element 32 octets attribute in format element 20 organization element 25 abbrev attribute 25 inside author 10 P pageno attribute in xref element 45 phone element 25 inside address 5 postal element 26 inside address 5 postamble element 26 Reschke Expires May 30, 2014 [Page 74] Internet-Draft XML2RFC November 2013 inside figure 17 inside texttable 40 preamble element 27 inside figure 17 inside texttable 40 primary attribute in iref element 22 R reference element 28 anchor attribute 28 inside references 29 target attribute 28 references element 29 inside back 12 title attribute 29 region element 30 inside postal 26 rfc element 30 category attribute 30 consensus attribute 31 docName attribute 31 ipr attribute 31 iprExtract attribute 32 number attribute 32 obsoletes attribute 32 seriesNo attribute 33 submissionType attribute 33 updates attribute 33 xml:lang attribute 33 role attribute in author element 11 S section element 34 anchor attribute 35 inside back 12 inside middle 24 inside section 35 title attribute 35 toc attribute 35 seriesInfo element 36 inside reference 28 name attribute 36 value attribute 36 seriesNo attribute in rfc element 33 source attribute Reschke Expires May 30, 2014 [Page 75] Internet-Draft XML2RFC November 2013 in cref element 14 spanx element 37 inside annotation 6 inside c 12 inside postamble 27 inside preamble 27 inside t 39 style attribute 37 xml:space attribute 37 src attribute in artwork element 8 in figure element 18 street element 38 inside postal 26 style attribute in list element 23 in spanx element 37 in texttable element 40 subitem attribute in iref element 22 submissionType attribute in rfc element 33 suppress-title attribute in figure element 18 in texttable element 41 surname attribute in author element 11 T t element 38 anchor attribute 39 hangText attribute 39 inside abstract 5 inside list 23 inside note 24 inside section 35 target attribute in eref element 16 in format element 20 in reference element 28 in xref element 45 texttable element 39 align attribute 40 anchor attribute 40 inside section 35 style attribute 40 suppress-title attribute 41 title attribute 41 Reschke Expires May 30, 2014 [Page 76] Internet-Draft XML2RFC November 2013 title attribute in figure element 19 in note element 24 in references element 29 in section element 35 in texttable element 41 title element 41 abbrev attribute 42 inside front 20 toc attribute in section element 35 ttcol element 42 align attribute 42 inside texttable 40 width attribute 42 type attribute in artwork element 9 in format element 20 U updates attribute in rfc element 33 uri element 43 inside address 5 V value attribute in seriesInfo element 36 vspace element 43 blankLines attribute 43 inside t 39 W width attribute in artwork element 9 in figure element 19 in ttcol element 42 workgroup element 44 inside front 21 X xml:lang attribute in rfc element 33 xml:space attribute in artwork element 9 in spanx element 37 xref element 44 format attribute 44 Reschke Expires May 30, 2014 [Page 77] Internet-Draft XML2RFC November 2013 inside annotation 6 inside c 12 inside postamble 27 inside preamble 27 inside t 38 pageno attribute 45 target attribute 45 Y year attribute in date element 15 Author's Address Julian F. Reschke greenbytes GmbH Hafenweg 16 Muenster, NW 48155 Germany EMail: julian.reschke@greenbytes.de URI: http://greenbytes.de/tech/webdav/ Reschke Expires May 30, 2014 [Page 78]