Network Working Group                                  M. Petit-Huguenin
Internet-Draft                                    Impedance Mismatch LLC
Intended status: Informational                              28 July 2023
Expires: 29 January 2024


                Mappings Between XML2RFC v3 and AsciiDoc
                draft-petithuguenin-xml2rfc-asciidoc-02

Abstract

   This document specifies a mapping between XML2RFC v3 and AsciiDoc.
   The goal of this mapping and its associated tooling is to make
   writing an Internet-Draft as simple as possible, by converting any
   AsciiDoc formatted document into a valid Internet-Draft, ready to be
   submitted to the IETF.  This is still work in progress and for the
   time being this mapping only ensures that any valid XML2RFC element
   can be generated from AsciiDoc.

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 https://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 29 January 2024.

Copyright Notice

   Copyright (c) 2023 IETF Trust and the persons identified as the
   document authors.  All rights reserved.











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   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents (https://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 Revised BSD License text as
   described in Section 4.e of the Trust Legal Provisions and are
   provided without warranty as described in the Revised BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   5
   2.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     2.1.  Deprecated and Unsupported Elements . . . . . . . . . . .   7
     2.2.  Docinfo Processing  . . . . . . . . . . . . . . . . . . .   7
     2.3.  Include Citation  . . . . . . . . . . . . . . . . . . . .   8
   3.  Mappings  . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   4.  Mapping between AsciiDoc and XML2RFC v3 . . . . . . . . . . .   8
     4.1.  <abstract>  . . . . . . . . . . . . . . . . . . . . . . .   8
       4.1.1.  "anchor" Attribute  . . . . . . . . . . . . . . . . .   9
     4.2.  <address> . . . . . . . . . . . . . . . . . . . . . . . .   9
     4.3.  <annotation>  . . . . . . . . . . . . . . . . . . . . . .   9
     4.4.  <area>  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     4.5.  <artset>  . . . . . . . . . . . . . . . . . . . . . . . .   9
       4.5.1.  "anchor" Attribute  . . . . . . . . . . . . . . . . .  10
     4.6.  <artwork> . . . . . . . . . . . . . . . . . . . . . . . .  10
       4.6.1.  "align" Attribute . . . . . . . . . . . . . . . . . .  11
       4.6.2.  "alt" Attribute . . . . . . . . . . . . . . . . . . .  11
       4.6.3.  "anchor" Attribute  . . . . . . . . . . . . . . . . .  12
       4.6.4.  "name" Attribute  . . . . . . . . . . . . . . . . . .  12
       4.6.5.  "src" Attribute . . . . . . . . . . . . . . . . . . .  13
       4.6.6.  "type" Attribute  . . . . . . . . . . . . . . . . . .  13
     4.7.  <aside> . . . . . . . . . . . . . . . . . . . . . . . . .  14
       4.7.1.  "anchor" Attribute  . . . . . . . . . . . . . . . . .  14
     4.8.  <author>  . . . . . . . . . . . . . . . . . . . . . . . .  14
     4.9.  <back>  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     4.10. <bcp14> . . . . . . . . . . . . . . . . . . . . . . . . .  15
     4.11. <blockquote>  . . . . . . . . . . . . . . . . . . . . . .  15
       4.11.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  15
       4.11.2.  "cite" Attribute . . . . . . . . . . . . . . . . . .  16
       4.11.3.  "quotedFrom" Attribute . . . . . . . . . . . . . . .  16
     4.12. <boilerplate> . . . . . . . . . . . . . . . . . . . . . .  17
     4.13. <br>  . . . . . . . . . . . . . . . . . . . . . . . . . .  17
     4.14. <contact> . . . . . . . . . . . . . . . . . . . . . . . .  17
     4.15. <country> . . . . . . . . . . . . . . . . . . . . . . . .  17
     4.16. <cref>  . . . . . . . . . . . . . . . . . . . . . . . . .  17
       4.16.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  18
       4.16.2.  "display" Attribute  . . . . . . . . . . . . . . . .  18



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       4.16.3.  "source" Attribute . . . . . . . . . . . . . . . . .  19
     4.17. <date>  . . . . . . . . . . . . . . . . . . . . . . . . .  19
     4.18. <dd>  . . . . . . . . . . . . . . . . . . . . . . . . . .  19
       4.18.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  20
     4.19. <displayreference>  . . . . . . . . . . . . . . . . . . .  20
       4.19.1.  "target" Attribute . . . . . . . . . . . . . . . . .  20
       4.19.2.  "to" Attribute . . . . . . . . . . . . . . . . . . .  20
     4.20. <dl>  . . . . . . . . . . . . . . . . . . . . . . . . . .  20
       4.20.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  21
       4.20.2.  "indent" Attribute . . . . . . . . . . . . . . . . .  21
       4.20.3.  "newline" Attribute  . . . . . . . . . . . . . . . .  22
       4.20.4.  "spacing" Attribute  . . . . . . . . . . . . . . . .  22
     4.21. <dt>  . . . . . . . . . . . . . . . . . . . . . . . . . .  22
       4.21.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  23
     4.22. <em>  . . . . . . . . . . . . . . . . . . . . . . . . . .  23
     4.23. <email> . . . . . . . . . . . . . . . . . . . . . . . . .  23
     4.24. <eref>  . . . . . . . . . . . . . . . . . . . . . . . . .  23
       4.24.1.  "bracket" Attribute  . . . . . . . . . . . . . . . .  24
       4.24.2.  "target" Attribute . . . . . . . . . . . . . . . . .  24
     4.25. <figure>  . . . . . . . . . . . . . . . . . . . . . . . .  24
       4.25.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  25
     4.26. <front> . . . . . . . . . . . . . . . . . . . . . . . . .  25
     4.27. <iref>  . . . . . . . . . . . . . . . . . . . . . . . . .  25
       4.27.1.  "item" Attribute . . . . . . . . . . . . . . . . . .  26
       4.27.2.  "primary" Attribute  . . . . . . . . . . . . . . . .  26
       4.27.3.  "subitem" Attribute  . . . . . . . . . . . . . . . .  27
     4.28. <keyword> . . . . . . . . . . . . . . . . . . . . . . . .  27
     4.29. <li>  . . . . . . . . . . . . . . . . . . . . . . . . . .  27
       4.29.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  28
     4.30. <link>  . . . . . . . . . . . . . . . . . . . . . . . . .  28
     4.31. <middle>  . . . . . . . . . . . . . . . . . . . . . . . .  28
     4.32. <name>  . . . . . . . . . . . . . . . . . . . . . . . . .  29
     4.33. <note>  . . . . . . . . . . . . . . . . . . . . . . . . .  30
     4.34. <ol>  . . . . . . . . . . . . . . . . . . . . . . . . . .  30
       4.34.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  30
       4.34.2.  "group" Attribute  . . . . . . . . . . . . . . . . .  30
       4.34.3.  "indent" Attribute . . . . . . . . . . . . . . . . .  31
       4.34.4.  "spacing" Attribute  . . . . . . . . . . . . . . . .  31
       4.34.5.  "start" Attribute  . . . . . . . . . . . . . . . . .  32
       4.34.6.  "type" Attribute . . . . . . . . . . . . . . . . . .  32
     4.35. <organization>  . . . . . . . . . . . . . . . . . . . . .  33
     4.36. <phone> . . . . . . . . . . . . . . . . . . . . . . . . .  33
     4.37. <postal>  . . . . . . . . . . . . . . . . . . . . . . . .  33
     4.38. <postalLine>  . . . . . . . . . . . . . . . . . . . . . .  33
     4.39. <refcontent>  . . . . . . . . . . . . . . . . . . . . . .  34
     4.40. <reference> . . . . . . . . . . . . . . . . . . . . . . .  34
     4.41. <referencegroup>  . . . . . . . . . . . . . . . . . . . .  34
     4.42. <references>  . . . . . . . . . . . . . . . . . . . . . .  34



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       4.42.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  34
     4.43. <rfc> . . . . . . . . . . . . . . . . . . . . . . . . . .  35
       4.43.1.  "category" Attribute . . . . . . . . . . . . . . . .  35
       4.43.2.  "consensus" Attribute  . . . . . . . . . . . . . . .  36
       4.43.3.  "docName" Attribute  . . . . . . . . . . . . . . . .  36
       4.43.4.  "indexInclude" Attribute . . . . . . . . . . . . . .  36
       4.43.5.  "ipr" Attribute  . . . . . . . . . . . . . . . . . .  37
       4.43.6.  "iprExtract" Attribute . . . . . . . . . . . . . . .  37
       4.43.7.  "number" Attribute . . . . . . . . . . . . . . . . .  37
       4.43.8.  "obsoletes" Attribute  . . . . . . . . . . . . . . .  37
       4.43.9.  "prepTime" Attribute . . . . . . . . . . . . . . . .  37
       4.43.10. "seriesNo" Attribute . . . . . . . . . . . . . . . .  38
       4.43.11. "sortRefs" Attribute . . . . . . . . . . . . . . . .  38
       4.43.12. "submissionType" Attribute . . . . . . . . . . . . .  38
       4.43.13. "symRefs" Attribute  . . . . . . . . . . . . . . . .  38
       4.43.14. "tocDepth" Attribute . . . . . . . . . . . . . . . .  39
       4.43.15. "tocInclude" Attribute . . . . . . . . . . . . . . .  39
       4.43.16. "updates" Attribute  . . . . . . . . . . . . . . . .  39
       4.43.17. "version" Attribute  . . . . . . . . . . . . . . . .  40
     4.44. <section> . . . . . . . . . . . . . . . . . . . . . . . .  40
       4.44.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  40
       4.44.2.  "numbered" Attribute . . . . . . . . . . . . . . . .  41
       4.44.3.  "removeInRfc" Attribute  . . . . . . . . . . . . . .  41
       4.44.4.  "toc" Attribute  . . . . . . . . . . . . . . . . . .  41
     4.45. <seriesInfo>  . . . . . . . . . . . . . . . . . . . . . .  42
     4.46. <sourcecode>  . . . . . . . . . . . . . . . . . . . . . .  42
       4.46.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  42
       4.46.2.  "markers" Attribute  . . . . . . . . . . . . . . . .  43
       4.46.3.  "name" Attribute . . . . . . . . . . . . . . . . . .  43
       4.46.4.  "src" Attribute  . . . . . . . . . . . . . . . . . .  44
       4.46.5.  "type" Attribute . . . . . . . . . . . . . . . . . .  44
     4.47. <stream>  . . . . . . . . . . . . . . . . . . . . . . . .  44
     4.48. <strong>  . . . . . . . . . . . . . . . . . . . . . . . .  45
     4.49. <sub> . . . . . . . . . . . . . . . . . . . . . . . . . .  45
     4.50. <sup> . . . . . . . . . . . . . . . . . . . . . . . . . .  45
     4.51. <t> . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
       4.51.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  46
       4.51.2.  "indent" Attribute . . . . . . . . . . . . . . . . .  46
       4.51.3.  "keepWithNext" Attribute . . . . . . . . . . . . . .  46
       4.51.4.  "keepWithPrevious" Attribute . . . . . . . . . . . .  47
     4.52. <table> . . . . . . . . . . . . . . . . . . . . . . . . .  47
       4.52.1.  "align" Attribute  . . . . . . . . . . . . . . . . .  48
       4.52.2.  "anchor" Attribute . . . . . . . . . . . . . . . . .  48
     4.53. <tbody> . . . . . . . . . . . . . . . . . . . . . . . . .  48
       4.53.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  49
     4.54. <td>  . . . . . . . . . . . . . . . . . . . . . . . . . .  49
       4.54.1.  "align" Attribute  . . . . . . . . . . . . . . . . .  49
       4.54.2.  "anchor" Attribute . . . . . . . . . . . . . . . . .  49



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       4.54.3.  "colspan" Attribute  . . . . . . . . . . . . . . . .  50
       4.54.4.  "rowspan" Attribute  . . . . . . . . . . . . . . . .  50
     4.55. <tfoot> . . . . . . . . . . . . . . . . . . . . . . . . .  50
       4.55.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  51
     4.56. <th>  . . . . . . . . . . . . . . . . . . . . . . . . . .  51
       4.56.1.  "align" Attribute  . . . . . . . . . . . . . . . . .  51
       4.56.2.  "anchor" Attribute . . . . . . . . . . . . . . . . .  51
       4.56.3.  "colspan" Attribute  . . . . . . . . . . . . . . . .  52
       4.56.4.  "rowspan" Attribute  . . . . . . . . . . . . . . . .  52
     4.57. <thead> . . . . . . . . . . . . . . . . . . . . . . . . .  52
       4.57.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  53
     4.58. <title> . . . . . . . . . . . . . . . . . . . . . . . . .  53
     4.59. <toc> . . . . . . . . . . . . . . . . . . . . . . . . . .  53
     4.60. <tr>  . . . . . . . . . . . . . . . . . . . . . . . . . .  53
       4.60.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  53
     4.61. <tt>  . . . . . . . . . . . . . . . . . . . . . . . . . .  53
     4.62. <u> . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
       4.62.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  54
       4.62.2.  "ascii" Attribute  . . . . . . . . . . . . . . . . .  54
       4.62.3.  "format" Attribute . . . . . . . . . . . . . . . . .  55
     4.63. <ul>  . . . . . . . . . . . . . . . . . . . . . . . . . .  55
       4.63.1.  "anchor" Attribute . . . . . . . . . . . . . . . . .  55
       4.63.2.  "bare" Attribute . . . . . . . . . . . . . . . . . .  56
       4.63.3.  "empty" Attribute  . . . . . . . . . . . . . . . . .  56
       4.63.4.  "indent" Attribute . . . . . . . . . . . . . . . . .  56
       4.63.5.  "spacing" Attribute  . . . . . . . . . . . . . . . .  57
     4.64. <uri> . . . . . . . . . . . . . . . . . . . . . . . . . .  57
     4.65. <workgroup> . . . . . . . . . . . . . . . . . . . . . . .  57
     4.66. <xref>  . . . . . . . . . . . . . . . . . . . . . . . . .  58
       4.66.1.  "format" Attribute . . . . . . . . . . . . . . . . .  58
       4.66.2.  "relative" Attribute . . . . . . . . . . . . . . . .  58
       4.66.3.  "section" Attribute  . . . . . . . . . . . . . . . .  59
       4.66.4.  "sectionFormat" Attribute  . . . . . . . . . . . . .  59
       4.66.5.  "target" Attribute . . . . . . . . . . . . . . . . .  59
   5.  Informative References  . . . . . . . . . . . . . . . . . . .  60
   6.  Example References  . . . . . . . . . . . . . . . . . . . . .  61
   Appendix A.  Command Line Tool  . . . . . . . . . . . . . . . . .  61
   Appendix B.  Build a Bibliography with Zotero . . . . . . . . . .  62
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .  63
   Changelog . . . . . . . . . . . . . . . . . . . . . . . . . . . .  63
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  63

1.  Introduction

   This document specifies a mapping between XML2RFC v3, as defined in
   the successor [I-D.rswg-xml2rfcv3-implemented-01] of [RFC7991], and
   [AsciiDoc].




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   The goal of this mapping and its associated tooling is to make
   writing an Internet-Draft as simple as possible, by converting any
   AsciiDoc formatted document into a valid Internet-Draft, ready to be
   submitted to the IETF.  This is still work in progress and for the
   time being this mapping only ensures that any valid XML2RFC element
   can be generated from AsciiDoc.

   Installation and usage of the tool is described in Appendix A.

2.  Overview

   AsciiDoc is an extensible documentation format whose syntax can be
   split in two parts:

   *  The standard syntax as defined in
      https://docs.asciidoctor.org/asciidoc/latest/

   *  Extensions that extend the standard syntax.  A popular example of
      extension is asciidoctor-diagrams, which permits the insertion of
      diagrams in a document.

   The mapping described in this document splits these parts further.
   The standard syntax is split in two subparts:

   *  The primitive standard syntax contains all the AsciiDoc elements
      that have a direct translation back and forth with XML2RFC v3.

   *  The compound standard syntax contains all the other standard
      elements.

   Elements in the compound standard syntax are converted into XML2RFC
   v3 by using multiple elements.  That means that the conversion back
   to AsciiDoc will always be to elements in the primitive standard
   syntax, not the original elements.

   For instance an AsciiDoc unordered list is a primitive element that
   is converted to an <ol> element in XML2RFC.  On the other hand the
   AsciiDoc checklist is a compound element that is converted into a
   combination of <ol> and <t> elements in XML2RFC, but the conversion
   back will not result in an AsciiDoc checklist.

   Similarly some AsciiDoc extensions have been developed to support
   XML2RFC elements and attributes that do not have a standard AsciiDoc
   equivalent.  The XML2RFC elements and attributes will be converted
   back into these AsciiDoc extensions, but any other AsciiDoc
   extensions will be converted back into a combination of primitive
   AsciiDoc elements.




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   When choosing the mapping between an XML2RFC elements and an AsciiDoc
   element, reusing as much as possible of the standard AsciiDoc syntax
   was a priority.  An extension is added only if a standard element
   with the correct semantics cannot be found.

   AsciiDoc is not really meant to support highly structured XML2RFC
   elements like <front>, <reference>, <referencegroup>, <author>, and
   <contact>.  Thus these element are used directly in AsciiDoc by
   inserting an XML2RFC fragment inside a passthrough block.
   Passthrough blocks serve also as an escape hatch for new elements
   added to the XML2RFC syntax until a new revision of this document is
   published.

2.1.  Deprecated and Unsupported Elements

   In any case AsciiDoc, both standard and extensions, never generate
   deprecated XML2RFC elements or attributes.

   This mapping is specifically designed to write Internet-Drafts so
   there is no support, in any direction, for XML2RFC elements and
   attributes that are specific to RFCs.

   The list of xml2rc v3 elements that are specific to the generation of
   RFCs, and so cannot be generated from an AsciiDoc document are:

   *  the <boilerplate> element

   *  the <link> element

   *  the "iprExtract", "number", "prepTime", and "seriesNo" attributes
      in the <rfc> element

   *  the <toc> element

   *  all the attributes added by the preptool.

2.2.  Docinfo Processing

   If a docinfo file is used, it completely replaces the generation of
   the <front> element.  To reduce redundancy, some of the attributes
   declared in the document header can be referenced in the docinfo
   file:

   subtitle:  This attribute contains the subtitle to be inserted in the
      "abbrev" attribute of the <title> element.  This is an extension
      to the standard AsciiDoc.

   author:  This attribute contains the full name to be inserted in the



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      "fullname" attribute of the <author> element.

   email:  This attribute contains the email to be inserted in the
      <email> element.

   revday:  This attribute contains the day to be inserted in the "day"
      attribute of the <date> element.  This is an extension to the
      standard AsciiDoc.

   revmonth:  This attribute contains the month to be inserted in the
      "month" attribute of the <date> element.  This is an extension to
      the standard AsciiDoc.

   revyear:  This attribute contains the year to be inserted in the
      "year" attribute of the <date> element.  This is an extension to
      the standard AsciiDoc.

   abstract:  This attribute contains the abstract to be inserted in the
      <abstract> element.  This is an extension to the standard
      AsciiDoc.

   revremark:  This attribute contains the note to be inserted in a
      <note> element.

2.3.  Include Citation

   References can be automatically extracted from local Internet-Drafts
   written in AsciiDoc, and inserted into a reference section by
   including the document with the fragment identifier "#citation", as
   in the following example:

       - [[[I-D.petithuguenin-mapping-xml2rfc-asciidoc-00]]]
       ++++
       include::test.adoc#citation[]
       ++++

3.  Mappings

4.  Mapping between AsciiDoc and XML2RFC v3

   This section describes the mapping between the AsciiDoc direct syntax
   and IETF extensions to non-deprecated XML2RFC v3 elements and
   attributes.

4.1.  <abstract>

   The <abstract> element inside a <front> element is either generated
   from an abstract section or copied from a docinfo file.



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   The <abstract> element can also be used inside a <reference> element
   in a passthrough block in the bibliography.

4.1.1.  "anchor" Attribute

   The <abstract> "anchor" attribute can be copied from a docinfo file.
   It cannot be generated from an abstract section.

4.2.  <address>

   The <address> element inside a <front> element is copied from a
   docinfo file.

   The <address> element can also be used inside a <reference> element
   in a passthrough block in the bibliography.

   The <address> element can also be used inside an <author> element in
   a passthrough block in a section.

4.3.  <annotation>

   The <annotation> element can be used inside a <reference> element in
   a passthrough block in the bibliography.

4.4.  <area>

   The <area> element inside a <front> element is copied from a docinfo
   file.

   The <area> element can be used inside a <reference> element in a
   passthrough block in the bibliography.

4.5.  <artset>

   The <artset> element is generated from an example block using the
   style "alt".  This block can only contain images or literal blocks.

   The alt style on an example block is an extension to standard
   AsciiDoc.

   The following example










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      [alt]
      ====
      image::test.jpg[]

      ....
      ASCII Art
      ....
      ====

   is converted to

      <artset>
      <artwork src='test.jpg' />
      <artwork><![CDATA[ASCII Art]]></artwork>
      </artset>

4.5.1.  "anchor" Attribute

   The <artset> "anchor" attribute is generated from the "alt" block ID,
   if present.

   The following example

      [alt#id1]
      ====
      image::test.jpg[]

      ....
      ASCII Art
      ....
      ====

   is converted to

      <artset anchor='id1'>
      <artwork src='test.jpg' />
      <artwork><![CDATA[ASCII Art]]></artwork>
      </artset>

4.6.  <artwork>

   The <artwork> element is generated from a literal or image block.

   The following example

      ....
      ASCII Art
      ....



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   is converted to

      <artwork><![CDATA[ASCII Art]]></artwork>

   The following example

      image::test.jpg[]

   is converted to

      <artwork src='test.jpg' />

4.6.1.  "align" Attribute

   The <artwork> "align" attribute is generated from the align
   attribute, if present.

   The following example

      [align=center]
      ....
      ASCII Art
      ....

   is converted to

      <artwork align='center'><![CDATA[ASCII Art]]></artwork>

   The following example

      image::test.jpg[align=center]

   is converted to

      <artwork align='center' src='test.jpg' />

4.6.2.  "alt" Attribute

   The <artwork> "alt" attribute is generated from the alt attribute, if
   present.

   The alt attribute on a literal block is an extension to standard
   AsciiDoc.

   The following example






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      [alt="Alternative"]
      ....
      Some text
      ....

   is converted to

      <artwork alt='Alternative' name=''><![CDATA[Some text]]></artwork>

   The following example

      image::test.jpg[Some text]

   is converted to

      <artwork alt='Some text' src='test.jpg' />

4.6.3.  "anchor" Attribute

   The <artwork> "anchor" attribute is generated from the image or
   literal block ID, if present.

   The following example

      [[id2]]
      ....
      ASCII Art
      ....

   is converted to

      <artwork anchor='id2'><![CDATA[ASCII Art]]></artwork>

   The following example

      [[id3]]
      image::test.jpg[]

   is converted to

      <artwork anchor='id3' src='test.jpg' />

4.6.4.  "name" Attribute

   The <artwork> "name" attribute is generated from the name attribute,
   if present.





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   The name attribute on a literal block is an extension to standard
   AsciiDoc.

   The following example

      [name="test.txt"]
      ....
      ASCII Art
      ....

   is converted to

      <artwork><![CDATA[ASCII Art]]></artwork>

4.6.5.  "src" Attribute

   The <artwork> "src" attribute is generated from the target of an
   image block.

   The src attribute on an image block is an extension to standard
   AsciiDoc.

   The following example

      image::test.jpg[]

   is converted to

      <artwork src='test.jpg' />

4.6.6.  "type" Attribute

   The <artwork> "type" attribute is generated from the format
   attribute, if present.

   The format attribute on an literal block is an extension to standard
   AsciiDoc.

   The following example

      [format="ascii-art"]
      ....
      ASCII Art
      ....

   is converted to

      <artwork type='ascii-art'><![CDATA[ASCII Art]]></artwork>



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4.7.  <aside>

   The <aside> element is generated from a sidebar block.

   The following example

      ****
      Some text
      ****

   is converted to

      <aside>
      <t>
      Some text
      </t>
      </aside>

4.7.1.  "anchor" Attribute

   The <aside> "anchor" attribute is generated from the aside block ID,
   if present.

   The following example

      [[id4]]
      ****
      Some text
      ****

   is converted to

      <aside anchor='id4'>
      <t>
      Some text
      </t>
      </aside>

4.8.  <author>

   The <author> element inside a <front> element is either generated
   from the author information in the document header or copied from a
   docinfo file.

   The <author> element can also be used inside a <reference> element in
   a passthrough block in the bibliography.





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4.9.  <back>

   The <back> element is implicitly generated when a bibliography or a
   appendices are added to a document.

4.10.  <bcp14>

   The <bcp14> element is generated from the text span style bcp14.

   The text span style bcp14 is an extension to standard AsciiDoc.

   The following example

      Implementers [bcp14]#MUST# implement all MUST.

   is converted to

      <t>
      Implementers <bcp14>MUST</bcp14> implement all MUST.
      </t>

4.11.  <blockquote>

   The <blockquote> element is generated from a quote block.

   The following example

      ____
      Some text
      ____

   is converted to

      <blockquote>
      <t>
      Some text
      </t>
      </blockquote>

4.11.1.  "anchor" Attribute

   The <blockquote> "anchor" attribute is generated from the quote block
   ID, if present.

   The following example






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      [[id5]]
      ____
      Some text
      ____

   is converted to

      <blockquote anchor='id5'>
      <t>
      Some text
      </t>
      </blockquote>

4.11.2.  "cite" Attribute

   The <blockquote> "cite" attribute is generated from the quote block
   cite attribute, if present.

   The cite attribute on an literal block is an extension to standard
   AsciiDoc.

   The following example

      [quote,cite=https://link]
      ____
      Some text
      ____

   is converted to

      <blockquote cite='http://link'>
      <t>
      Some text
      </t>
      </blockquote>

4.11.3.  "quotedFrom" Attribute

   The <blockquote> "quotedFrom" attribute is generated from the quote
   block positional attribute, if present.

   The following example

      [quote,attribution]
      ____
      Some text
      ____




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   is converted to

      <blockquote quotedFrom='attribution'>
      <t>
      Some text
      </t>
      </blockquote>

4.12.  <boilerplate>

   The <boilerplate> element is used only for RFCs and so is not
   generated.

4.13.  <br>

   The <br> element is generated from the " +" string at the end of a
   line in a paragraph.

   The following example

      This is +
      two lines

   is converted to

      <t>
      This is<br />
      two lines
      </t>

4.14.  <contact>

   The <contact> element and its attributes are provided in a section as
   a passthrough block containing that element, or in a paragraph as an
   inline passthrough containing that element.

4.15.  <country>

   The <country> element and its attribute inside a <front> element is
   copied from a docinfo file.

   The <country> element can be used inside a <reference> element in a
   passthrough block in the bibliography.

4.16.  <cref>

   The <cref> element is generated from the comment inline macro.




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   The comment inline macro and its attributes are extensions to
   standard AsciiDoc.

   The following example

      The
      comment:[Replace native]
      native mode can be used.

   is converted to

      <t>
      The
      <cref>Replace native</cref>
      native mode can be used.
      </t>

4.16.1.  "anchor" Attribute

   The <cref> "anchor" attribute is generated from the comment inline
   macro ID, if present.

   The following example

      The
      comment:[Replace native,id=id6]
      native mode can be used.

   is converted to

      <t>
      The
      <cref anchor='id6'>Replace native</cref>
      native mode can be used.
      </t>

4.16.2.  "display" Attribute

   The <cref> "display" attribute is generated from the comment inline
   macro display attribute, if present.

   The following example

      The
      comment:[Replace native,display=true]
      native mode can be used.

   is converted to



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      <t>
      The
      <cref display='true'>Replace native</cref>
      native mode can be used.
      </t>

4.16.3.  "source" Attribute

   The <cref> "source" attribute is generated from the comment inline
   macro source attribute, if present.

   The following example

      The
      comment:[Replace native,source=MPH]
      native mode can be used.

   is converted to

      <t>
      The
      <cref source='MPH'>Replace native</cref>
      native mode can be used.
      </t>

4.17.  <date>

   The <date> element and its attributes inside a <front> element are
   either generated from an revdate document header or copied from a
   docinfo file.

   The <date> element can also be used inside a <reference> element in a
   passthrough block in the bibliography.

4.18.  <dd>

   The <dd> element is generated from the definition part of a
   description list.

   The following example

      text:: data

   is converted to

      <dl>
      <dt>text</dt><dd>data</dd>
      </dl>



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4.18.1.  "anchor" Attribute

   The <dd> anchor attribute cannot be generated.

4.19.  <displayreference>

   The <displayreference> element is generated from a bibliography entry
   bibref that differs from the ID of the entry itself.

   The following example

      [bibliography]
      == References

      * [[[id8]]]
      +
      [[id9]]
      ++++
      <reference anchor="id9">
      </reference>
      ++++

   is converted to

      <back>

      <displayreference target="id9" to="id8" />


      <references>
      <name>References</name>
      <reference anchor="id9">
      </reference>
      </references>
      </back>

4.19.1.  "target" Attribute

   The <displayreference> target attribute cannot be generated.

4.19.2.  "to" Attribute

   The displayreference "to" attribute cannot be generated.

4.20.  <dl>

   The <dl> element is generated from a description list.




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   The following example

      text:: data

   is converted to

      <dl>
      <dt>text</dt><dd>data</dd>
      </dl>

4.20.1.  "anchor" Attribute

   The <dl> "anchor" attribute is generated from the ID of a description
   list, if present.

   The following example

      [[id10]]
      text:: data

   is converted to

      <dl anchor='id10'>
      <dt>text</dt><dd>data</dd>
      </dl>

4.20.2.  "indent" Attribute

   The <dl> "indent" attribute is generated from the indent attribute of
   a description list, if present.

   The description list indent attribute is an extension to standard
   AsciiDoc.

   The following example

      [indent=3]
      text:: data

   is converted to

      <dl indent='3'>
      <dt>text</dt><dd>data</dd>
      </dl>







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4.20.3.  "newline" Attribute

   The <dl> "newline" attribute is generated from the indent attribute
   of a description list, if present.

   The description list newline attribute is an extension to standard
   AsciiDoc.

   The following example

      [newline=true]
      text:: data

   is converted to

      <dl newline='true'>
      <dt>text</dt><dd>data</dd>
      </dl>

4.20.4.  "spacing" Attribute

   The <dl> "spacing" attribute is generated from the spacing attribute
   of a description list, if present.

   The description list spacing attribute is an extension to standard
   AsciiDoc.

   The following example

      [spacing=compact]
      text:: data

   is converted to

      <dl spacing='contact'>
      <dt>text</dt><dd>data</dd>
      </dl>

4.21.  <dt>

   The <dt> element is generated from the term part of a definition
   list.

   The following example

      text:: data

   is converted to



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      <dl>
      <dt>text</dt><dd>data</dd>
      </dl>

4.21.1.  "anchor" Attribute

   The <dt> anchor attribute cannot be generated.

4.22.  <em>

   The <em> element is generated from an italic text formatting.

   The following example

      Text with __emphasis__.

   is converted to

      <t>
      Text with <em>emphasis</em>.
      </t>

4.23.  <email>

   The <email> element inside a <front> element is either generated from
   the email document header or copied from a docinfo file.

   The <email> element can also be used inside a <reference> element in
   a passthrough block in the bibliography.

   The <email> element can also be used inside an <author> element in a
   passthrough block in a section.

4.24.  <eref>

   The <eref> element is generated from a link macro.

   The following example

      As cited in link:https://test[].

   is converted to

      <t>
      As cited in <eref target='https://test' />.
      </t>





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4.24.1.  "bracket" Attribute

   The <eref> "bracket" attribute is generated from the bracket
   attribute in the link macro, if present.

   The link macro bracket attribute is an extension to standard
   AsciiDoc.

   The following example

      As cited in link:https://test[brackets=true].

   is converted to

      <t>
      As cited in <eref brackets='true' target='https://test' />.
      </t>

4.24.2.  "target" Attribute

   The <eref> "target" attribute is generated from the target in the
   link macro.

   The following example

      As cited in link:https://test[].

   is converted to

      <t>
      As cited in <eref target='https://test' />.
      </t>

4.25.  <figure>

   The <figure> element is generated from an example block with the
   style "figure".

   The figure style on an example block is an extension to standard
   AsciiDoc.

   The following example

      [figure]
      ====
      image::test.jpg[]
      ====




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   is converted to

      <figure>

      <artwork src='test.jpg' />
      </figure>

4.25.1.  "anchor" Attribute

   The <figure> "anchor" attribute is generated from the ID of a figure
   block, if present.

      [[id12]]
      [figure]
      ====
      image::test.jpg[]
      ====

   is converted to

      <figure anchor='id12'>

      <artwork src='test.jpg' />
      </figure>

4.26.  <front>

   The <front> element is either generated from the author information
   in the document header or copied from a docinfo file.

   The <front> element can also be used inside a <reference> element in
   a passthrough block in the bibliography.

4.27.  <iref>

   The <iref> element is generated either from an indexterm inline macro
   or from an indexterm block macro extension.

   The indexterm block macro is an extension to standard AsciiDoc.

   The following example

      Text with an (((test))) index.

   is converted to






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      <t>
      Text with an <iref item='test' /> index.
      </t>

   The following example

      indexterm::[test]

   is converted to

      <iref item='test'/>

4.27.1.  "item" Attribute

   The <iref> "item" attribute is generated from the positional
   attribute of the index term.

   The following example

      Text with an (((test))) index.

   is converted to

      <t>
      Text with an <iref item='test' /> index.
      </t>

4.27.2.  "primary" Attribute

   The <iref> "primary" attribute is generated from the primary
   attribute of the index term.

   The primary indexterm block macro attribute is an extension to
   standard AsciiDoc.

   The following example

      Text with an (((test,,primary=true))) index.

   is converted to

      <t>
      Text with an <iref item='test' subitem='' /> index.
      </t>

   The following example

      indexterm::[test,primary=true]



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   is converted to

      <iref item='test' primary='true'/>

4.27.3.  "subitem" Attribute

   The <iref> "subitem" attribute is generated from the secondary
   attribute of the index term.

   The secondary indexterm block macro attribute is an extension to
   standard AsciiDoc.

   The following example

      Text with an (((test,test2))) index.

   is converted to

      <t>
      Text with an <iref item='test' subitem='test2' /> index.
      </t>

   The following example

      indexterm::[test,test2]

   is converted to

      <iref item='test' subitem='test2'/>

4.28.  <keyword>

   The <keyword> element inside a <front> element is copied from a
   docinfo file.

   The <keyword> element can also be used inside a <reference> element
   in a passthrough block in the bibliography.

4.29.  <li>

   The <li> element is generated from a line in either an unordered or
   an ordered list.

   The following example

      . One line

   is converted to



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      <ol>
      <li>One line</li>
      </ol>

   The following example

      * One line

   is converted to

      <ul>
      <li>One line</li>
      </ul>

4.29.1.  "anchor" Attribute

   The <li> "anchor" attribute is generated from the ID of a list item,
   if present.

   The following example

      . [[id13]]test

   is converted to

      <ol>
      <li anchor='id13'>test</li>
      </ol>

   The following example

      * [[id14]]test

   is converted to

      <ul>
      <li anchor='id14'>test</li>
      </ul>

4.30.  <link>

   The <link> element is provided in the docinfo file.

4.31.  <middle>

   The <middle> element is implicitly generated.





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4.32.  <name>

   The <name> element is generated from the title in either a section,
   an example block with figure style, or a table block.

   The possibility of using formatted text in an example block with
   figure style title or in a table title is an extension to standard
   AsciiDoc.

   The following example

      == section

   is converted to

      <section numbered='false'>
      <name>section</name>

      </section>

   The following example

      .title
      [figure]
      ====
      ....
      ASCII Art.
      ....
      ====

   is converted to

      <figure>
      <name>title</name>
      <artwork><![CDATA[ASCII Art]]></artwork>
      </figure>

   The following example

      .title
      |===
      | Test
      |===

   is converted to






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      <table>
      <name>title</name>
      <tbody><tr><td align='left'>Test</td></tr></tbody>
      </table>

4.33.  <note>

   The <note> element inside a <front> element is either generated from
   the revremark document header or copied from a docinfo file.

   The <note> element can also be used inside a <reference> element in a
   passthrough block in the bibliography.

4.34.  <ol>

   The <ol> element is generated from an ordered list.

   The following example

      . One line

   is converted to

      <ol>
      <li>One line</li>
      </ol>

4.34.1.  "anchor" Attribute

   The <ol> "anchor" attribute is generated from the ID of a ordered
   list, if present.

   The following example

      [[id15]]
      . test

   is converted to

      <ol anchor='id15'>
      <li>test</li>
      </ol>

4.34.2.  "group" Attribute

   The <ol> "group" attribute is generated from the group attribute of a
   ordered list, if present.




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   The group attribute on an ordered list is an extension to standard
   AsciiDoc.

   The following example

      [group=2]
      . test

   is converted to

      <ol group='2'>
      <li>test</li>
      </ol>

4.34.3.  "indent" Attribute

   The <ol> "indent" attribute is generated from the indent attribute of
   an ordered list, if present.

   The indent attribute on an ordered list is an extension to standard
   AsciiDoc.

   The following example

      [indent=2]
      . test

   is converted to

      <ol indent='2'>
      <li>test</li>
      </ol>

4.34.4.  "spacing" Attribute

   The <ol> "spacing" attribute is generated from the spacing attribute
   of an ordered list, if present.

   The spacing attribute on an ordered list is an extension to standard
   AsciiDoc.

   The following example

      [spacing=true]
      . test

   is converted to




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      <ol spacing='true'>
      <li>test</li>
      </ol>

4.34.5.  "start" Attribute

   The <ol> "start" attribute is generated from the start attribute of
   an ordered list, if present.

   The following example

      [start=0]
      . test

   is converted to

      <ol start='0'>
      <li>test</li>
      </ol>

4.34.6.  "type" Attribute

   The <ol> "type" attribute is generated from the style of an ordered
   list, if present.

   The prefix and suffix types are used to generate a "type" attribute
   that uses the "percent-letter" format.  The prefix and suffix
   attributes on an ordered list are extensions to standard AsciiDoc.

   The following example

      [lowerroman]
      . test

   is converted to

      <ol type='i'>
      <li>test</li>
      </ol>

   The following example

      [arabic,prefix="[REQ",suffix="]"]
      . test

   is converted to





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      <ol type='[REQ%d]'>
      <li>test</li>
      </ol>

4.35.  <organization>

   The <organization> element inside a <front> element is copied from a
   docinfo file.

   The <organization> element can also be used inside a <reference>
   element in a passthrough block in the bibliography.

   The <organization> element can also be used inside an <author>
   element in a passthrough block in a section.

4.36.  <phone>

   The <phone> element inside a <front> element is copied from a docinfo
   file.

   The <phone> element can also be used inside a <reference> element in
   a passthrough block in the bibliography.

   The <phone> element can also be used inside an <author> element in a
   passthrough block in a section.

4.37.  <postal>

   The <postal> element inside a <front> element is copied from a
   docinfo file.

   The <postal> element can also be used inside a <reference> element in
   a passthrough block in the bibliography.

   The <postal> element can also be used inside an <author> element in a
   passthrough block in a section.

4.38.  <postalLine>

   The <postalLine> element inside a <front> element is copied from a
   docinfo file.

   The <postalLine> element can also be used inside a <reference>
   element in a passthrough block in the bibliography.

   The <postalLine> element can also be used inside an <author> element
   in a passthrough block in a section.




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4.39.  <refcontent>

   The <refcontent> element can be used inside a <reference> element in
   a passthrough block in the bibliography.

4.40.  <reference>

   The <reference> element is provided in a passthrough block in the
   bibliography.

4.41.  <referencegroup>

   The <referencegroup> element is provided in a passthrough block in
   the bibliography.

4.42.  <references>

   The <references> element is generated from an unordered list in a
   bibliography section.

   The following example

      [bibliography]
      == References

      * [[[id16]]]
      +
      ++++
      <reference anchor="id16">
      </reference>
      ++++

   is converted to

      <back>

      <references>
      <name>References</name>
      <reference anchor="id16">
      </reference>
      </references>
      </back>

4.42.1.  "anchor" Attribute

   The <references> "anchor" attribute is generated from the ID of an
   unordered list in a bibliographic section, if present.




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   The following example

      [[id17]]
      [bibliography]
      == References

   is converted to

      <back>

      <references anchor='id17'>
      </references>
      </back>

4.43.  <rfc>

   The <rfc> element is generated by a top level section:

   The following example

      = Title

   is converted to

      <rfc category='info' docName='test' ipr='trust200902'
      tocInclude='false' version='3'>

4.43.1.  "category" Attribute

   The <rfc> "category" attribute is generated from the category
   document header attribute.

   The category attribute on a document header is an extension to
   standard AsciiDoc.

   The following example

      = Title
      :category: std

   is converted to

      <rfc category='std' docName='test' ipr='trust200902'
      tocInclude='false' version='3'>







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4.43.2.  "consensus" Attribute

   The <rfc> "consensus" attribute is generated from the consensus
   document header attribute.

   The consensus attribute on a document header is an extension to
   standard AsciiDoc.

   The following example

      = Title
      :consensus: true

   is converted to

      <rfc category='info' consensus='true' docName='test'
      ipr='trust200902' tocInclude='false' version='3'>

4.43.3.  "docName" Attribute

   The <rfc> "docName" attribute is generated from the doc-name document
   header attribute.

   The doc-name attribute on a document header is an extension to
   standard AsciiDoc.

   The following example

      = Title
      :doc-name: draft-petithuguenin-ex-00

   is converted to

      <rfc category='info' docName='draft-petithuguenin-ex-00'
      ipr='trust200902' tocInclude='false' version='3'>

4.43.4.  "indexInclude" Attribute

   The <rfc> "indexInclude" attribute is generated from the "index-
   include" document header attribute if present.

   The following example

      = Title
      :index-include: false

   is converted to




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      <rfc category='info' docName='test' indexInclude='false'
      ipr='trust200902' tocInclude='false' version='3'>

4.43.5.  "ipr" Attribute

   The <rfc> "ipr" attribute is generated from the "ipr" document header
   attribute if present, or with the "trust200902" content if not
   present.

   The following example

      = Title
      :ipr: noModificationTrust200902

   is converted to

      <rfc category='info' docName='test'
      ipr='noModificationTrust200902'
      tocInclude='false' version='3'>

4.43.6.  "iprExtract" Attribute

   Specific to RFC, so not implemented.

4.43.7.  "number" Attribute

   Specific to RFC, so not implemented.

4.43.8.  "obsoletes" Attribute

   The <rfc> "obsoletes" attribute is generated from the "obsoletes"
   document header attribute if present.

   The following example

      = Title
      :obsoletes: 3261,3262,3263,3264

   is converted to

      <rfc category='info' docName='test' ipr='trust200902'
      obsoletes='3261,3262,3263,3264'
      tocInclude='false' version='3'>

4.43.9.  "prepTime" Attribute

   Specific to RFC, so not implemented.




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4.43.10.  "seriesNo" Attribute

   Specific to RFC, so not implemented.

4.43.11.  "sortRefs" Attribute

   The <rfc> "sortRefs" attribute is generated from the "sort-refs"
   document header attribute if present.

   The following example

      = Title
      :sort-refs: true

   is converted to

      <rfc category='info' docName='test' ipr='trust200902'
      sortRefs='true'
      tocInclude='false' version='3'>

4.43.12.  "submissionType" Attribute

   The <rfc> "submissionType" attribute is generated from the
   "submission-type" document header attribute if present.

   The following example

      = Title
      :submission-type: independent

   is converted to

      <rfc category='info' docName='test' ipr='trust200902'
      submissionType='independent'
      tocInclude='false' version='3'>

4.43.13.  "symRefs" Attribute

   The <rfc> "symRefs" attribute is generated from the "sym-refs"
   document header attribute if present.

   The following example

      = Title
      :sym-refs: false

   is converted to




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      <rfc category='info' docName='test' ipr='trust200902'
      symRefs='false'
      tocInclude='false' version='3'>

4.43.14.  "tocDepth" Attribute

   The <rfc> "tocDepth" attribute is generated from the "toclevels"
   document header attribute if present.

   The following example

      = Title
      :toclevels: 4

   is converted to

      <rfc category='info' docName='test' ipr='trust200902'
      tocDepth='4'
      tocInclude='false' version='3'>

4.43.15.  "tocInclude" Attribute

   The <rfc> "tocInclude" attribute with a value of "false" is generated
   from the "toc" document header attribute if not present, or a value
   of "true" if present.

   The following example

      = Title
      :toc:

   is converted to

      <rfc category='info' docName='test' ipr='trust200902'
      tocInclude='true' version='3'>

4.43.16.  "updates" Attribute

   The <rfc> "updates" attribute is generated from the "updates"
   document header attribute if present.

   The following example

      = Title
      :updates: 3261,3262,3263,3264

   is converted to




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      <rfc category='info' docName='test' ipr='trust200902'
      updates='3261,3262,3263,3264'
      tocInclude='false' version='3'>

4.43.17.  "version" Attribute

   The <rfc> "version" attribute is implicitly generated.

   The following example

      = Title

   is converted to

      <rfc category='info' docName='test' ipr='trust200902'
      tocInclude='false' version='3'>

4.44.  <section>

   The <section> attribute is generated from a document section.

   The following example

      == Section 1

   is converted to

      <section numbered='false'>
      <name>Section 1</name>

      </section>

4.44.1.  "anchor" Attribute

   The <section> "anchor" attribute is generated from section ID, if
   present.

   The following example

      [[id18]]
      == Section 1

   is converted to

      <section anchor='id18' numbered='false'>
      <name>Section 1</name>

      </section>



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4.44.2.  "numbered" Attribute

   The <section> "numbered" attribute is generated from the current
   value of the sectnums attribute.  Note that AsciiDoc standards
   sections are unnumbered by default, but xml2rfc sections are numbered
   by default, so a ":sectnums:" attribute should be added to the
   document header.

   Each AsciiDoc special sections with style "appendix" that needs to be
   unnumbered needs to be preceded with the attribute ":sectnums!".

   The following example

      :sectnums!:

      == Section 1

   is converted to

      <section numbered='false'>
      <name>Section 1</name>

      </section>

4.44.3.  "removeInRfc" Attribute

   The <section> "removeInRfc" attribute is generated from the remove-
   in-rfc section attribute.

   The remove-in-rfc attribute on a section is an extension to standard
   AsciiDoc.

   The following example

      [remove-in-rfc=true]
      == Section 1

   is converted to

      <section numbered='false' removeInRFC='true'>
      <name>Section 1</name>

      </section>

4.44.4.  "toc" Attribute

   The <section> "toc" attribute is generated from the section attribute
   "toc".



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   The toc attribute on a section is an extension to standard AsciiDoc.

   The following example

      [toc=exclude]
      == Section 1

   is converted to

      <section numbered='false' toc='exclude'>
      <name>Section 1</name>

      </section>

4.45.  <seriesInfo>

   The <seriesInfo> element inside a <front> element is copied from a
   docinfo file.

   The <seriesInfo> element can also be used inside a <reference>
   element in a passthrough block in the bibliography.

4.46.  <sourcecode>

   The <sourcecode> element is generated from a listing block with the
   source style.

   The following example

      [source]
      ----
      class Test {}
      ----

   is converted to

      <sourcecode><![CDATA[class Test {}]]></sourcecode>

4.46.1.  "anchor" Attribute

   The <sourcecode> "anchor" attribute is generated from the ID of a
   listing block with source style, if present.

   The following example







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      [[id19]]
      [source]
      ----
      class Test {}
      ----

   is converted to

      <sourcecode anchor='id19'><![CDATA[class Test {}]]></sourcecode>

4.46.2.  "markers" Attribute

   The <sourcecode> "markers" attribute is generated from the markers
   attribute of a listing block with source style, if present.

   The markers attribute on a listing block with source style is an
   extension to standard AsciiDoc.

   The following example

      [source,markers=true]
      ----
      class Test {}
      ----

   is converted to

      <sourcecode markers='true'><![CDATA[class Test {}]]></sourcecode>

4.46.3.  "name" Attribute

   The <sourcecode> "name" attribute is generated from the name
   attribute of a listing block with source style, if present.

   The name attribute on a listing block with source style is an
   extension to standard AsciiDoc.

   The following example

      [source,name=Test.java]
      ----

      class Test {}

      ----

   is converted to




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      <sourcecode name='Test.java'><![CDATA[
      class Test {}
      ]]></sourcecode>

4.46.4.  "src" Attribute

   The <sourcecode> "src" attribute is generated from the src attribute
   of a listing block with source style, if present.

   The src attribute on a listing block with source style is an
   extension to standard AsciiDoc.

   The following example

      [source,src=Test.java]
      ----
      ----

   is converted to

      <sourcecode src='Test.java' />

4.46.5.  "type" Attribute

   The <sourcecode> "type" attribute is generated from the positional
   attribute of a listing block with source style, if present.

   The following example

      [source,java]
      ----
      class Test {}
      ----

   is converted to

      <sourcecode type='java'><![CDATA[class Test {}]]></sourcecode>

4.47.  <stream>

   The <stream> element inside a <front> element is copied from a
   docinfo file.

   The <stream> element can also be used inside a <reference> element in
   a passthrough block in the bibliography.






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4.48.  <strong>

   The <strong> element is generated from a bold text formatting.

   The following example

      **Strong** text.

   is converted to

      <t>
      <strong>Strong</strong> text.
      </t>

4.49.  <sub>

   The <sub> element is generated from a subscript text formatting.

   The following example

      Base~16~.

   is converted to

      <t>
      Base<sub>16</sub>.
      </t>

4.50.  <sup>

   The <sup> element is generated from a superscript text formatting.

   The following example

      E = mc^2^

   is converted to

      <t>
      E = mc<sup>2</sup>
      </t>

4.51.  <t>

   The <t> element is generated from a paragraph.

   The following example




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      Some text.

   is converted to

      <t>
      Some text.
      </t>

4.51.1.  "anchor" Attribute

   The <t> "anchor" attribute is generated from the ID of a paragraph,
   if present.

   The following example

      [[id20]]
      Some text.

   is converted to

      <t anchor='id20'>
      Some text.
      </t>

4.51.2.  "indent" Attribute

   The <t> "indent" attribute is generated from the indent attribute of
   a paragraph, if present.

   The indent attribute on a paragraph is an extension to standard
   AsciiDoc.

   The following example

      [ident=3]
      Some text.

   is converted to

      <t indent='3'>
      Some text.
      </t>

4.51.3.  "keepWithNext" Attribute

   The <t> "keepWithNext" attribute is generated from the keep-with-next
   attribute of a paragraph, if present.




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   The keep-with-next attribute on a paragraph is an extension to
   standard AsciiDoc.

   The following example

      [keep-with-next=true]
      Some text.

   is converted to

      <t keepWithNext='true'>
      Some text.
      </t>

4.51.4.  "keepWithPrevious" Attribute

   The <t> "keepWithPrevious" attribute is generated from the keep-with-
   previous attribute of a paragraph, if present.

   The keep-with-previous attribute on a paragraph is an extension to
   standard AsciiDoc.

   The following example

      [keep-with-previous=true]
      Some text.

   is converted to

      <t keepWithPrevious='true'>
      Some text.
      </t>

4.52.  <table>

   The <table> element is generated from a table.

   The following example

      |===
      | Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>



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4.52.1.  "align" Attribute

   The <table> "align" attribute is generated from the ID of a table, if
   present.

   The following example

      [align=left]
      |===
      | Cell
      |===

   is converted to

      <table align='left'>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.52.2.  "anchor" Attribute

   The <table> "anchor" attribute is generated from the ID of a table,
   if present.

   The following example

      [[id21]]
      |===
      | Cell
      |===

   is converted to

      <table anchor='id21'>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.53.  <tbody>

   The <tbody> element is generated from a table with rows.

   The following example

      |===
      | Cell
      |===

   is converted to




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      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.53.1.  "anchor" Attribute

   The <tbody> anchor attribute cannot be generated.

4.54.  <td>

   The <td> element is generated from a table with at least one cell.

   The following example

      |===
      | Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.54.1.  "align" Attribute

   The <td> "align" attribute is generated from the horizontal alignment
   operator of a cell in a table, if present.

   The following example

      |===
      |> Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>&gt; Cell</td></tr></tbody>
      </table>

4.54.2.  "anchor" Attribute

   The <td> anchor attribute cannot be generated.







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4.54.3.  "colspan" Attribute

   The <td> "colspan" attribute is generated from the horizontal
   alignment operator of a cell in a table, if present.

   The following example

      |===
      | Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.54.4.  "rowspan" Attribute

   The <td> "rowspan" attribute is generated from the horizontal
   alignment operator of a cell in a table, if present.

   The following example

      |===
      | Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.55.  <tfoot>

   The <tfoot> element is generated from a table with footer.

   The following example

      [%footer]
      |===

      | Cell

      | Footer
      |===




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   is converted to

      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      <tfoot><tr><td align='left'>Footer</td></tr></tfoot>
      </table>

4.55.1.  "anchor" Attribute

   The <tfoot> anchor attribute cannot be generated.

4.56.  <th>

   The <th> element is generated from a table with at least one cell.

   The following example

      |===
      | Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.56.1.  "align" Attribute

   The <th> "align" attribute is generated from the horizontal alignment
   operator of a cell in a table, if present.

   The following example

      |===
      |> Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>&gt; Cell</td></tr></tbody>
      </table>

4.56.2.  "anchor" Attribute

   The <th> anchor attribute cannot be generated.




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4.56.3.  "colspan" Attribute

   The <th> "colspan" attribute is generated from the horizontal
   alignment operator of a cell in a table, if present.

   The following example

      |===
      | Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.56.4.  "rowspan" Attribute

   The <th> "rowspan" attribute is generated from the horizontal
   alignment operator of a cell in a table, if present.

   The following example

      |===
      | Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.57.  <thead>

   The <thead> element is generated from a table with header.

   The following example

      [%header]
      |===
      | Header

      | Cell
      |===

   is converted to



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      <table>
      <thead><tr><td align='left'>Header</td></tr></thead>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.57.1.  "anchor" Attribute

   The <tfoot> anchor attribute cannot be generated.

4.58.  <title>

   The <title> element and its attributes are provided in the docinfo
   file or in a passthrough block containing a top <reference> element.

4.59.  <toc>

   The <toc> element is provided in the docinfo file.

4.60.  <tr>

   The <tr> element is generated from a table with rows.

   The following example

      |===
      | Cell
      |===

   is converted to

      <table>
      <tbody><tr><td align='left'>Cell</td></tr></tbody>
      </table>

4.60.1.  "anchor" Attribute

   The <tr> anchor attribute cannot be generated.

4.61.  <tt>

   The <tt> element is generated from a monospace text formatting.

   The following example

      The function ``main()``

   is converted to




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      <t>
      The function <tt>main()</tt>
      </t>

4.62.  <u>

   The <u> element is generated from an u inline macro.

   The inline macro is an extension to standard AsciiDoc.

   The following example

      This is u:[test]

   is converted to

      <t>
      This is <u>test</u>
      </t>

4.62.1.  "anchor" Attribute

   The <u> "anchor" attribute is generated from the ID of a u inline
   macro, if present.

   The following example

      This is u:[test,id=id26]

   is converted to

      <t>
      This is <u anchor='id26'>test</u>
      </t>

4.62.2.  "ascii" Attribute

   The <u> "ascii" attribute is generated from the ascii attribute of a
   u inline macro, if present.

   The following example

      This is u:[test,ascii=test]

   is converted to






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      <t>
      This is <u ascii='test'>test</u>
      </t>

4.62.3.  "format" Attribute

   The <u> "format" attribute is generated from the format attribute of
   a u inline macro, if present.

   The following example

      This is u:[test,format=lit-num-name]

   is converted to

      <t>
      This is <u format='lit-num-name'>test</u>
      </t>

4.63.  <ul>

   The <ul> element is generated from an unordered list.

   The following example

      * One line

   is converted to

      <ul>
      <li>One line</li>
      </ul>

4.63.1.  "anchor" Attribute

   The <ul> "anchor" attribute is generated from the ID of an unordered
   list, if present.

   The following example

      [[id27]]
      * test

   is converted to

      <ul anchor='id27'>
      <li>test</li>
      </ul>



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4.63.2.  "bare" Attribute

   The <ul> "bare" attribute is generated from the unstyled style on an
   unordered list, if present.

   The following example

      [unstyled]
      * test

   is converted to

      <ul bare='true' empty='true'>
      <li>test</li>
      </ul>

4.63.3.  "empty" Attribute

   The <ul> "empty" attribute is generated from the no-bullet style on
   an unordered list, if present.

   The following example

      [no-bullet]
      * test

   is converted to

      <ul empty='true'>
      <li>test</li>
      </ul>

4.63.4.  "indent" Attribute

   The <ul> "indent" attribute is generated from the indent attribute on
   an unordered list, if present.

   The indent attribute on am unordered is an extension to standard
   AsciiDoc.

   The following example

      [indent=3]
      * test

   is converted to





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      <ul indent='3'>
      <li>test</li>
      </ul>

4.63.5.  "spacing" Attribute

   The <ul> "spacing" attribute is generated from the spacing attribute
   on an unordered list, if present.

   The spacing attribute on an unordered list is an extension to
   standard AsciiDoc.

   The following example

      [spacing=compact]
      * test

   is converted to

      <ul spacing='compact'>
      <li>test</li>
      </ul>

4.64.  <uri>

   The <uri> element inside a <front> element is copied from a docinfo
   file.

   The <uri> element can also be used inside a <reference> element in a
   passthrough block in the bibliography.

   The <uri> element can also be used inside an <author> element in a
   passthrough block in a section.

4.65.  <workgroup>

   The <workgroup> element inside a <front> element is copied from a
   docinfo file.

   The <workgroup> element can also be used inside a <reference> element
   in a passthrough block in the bibliography.

   The <workgroup> element can also be used inside an <author> element
   in a passthrough block in a section.







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4.66.  <xref>

   The <xref> element is generated from a cross-reference.

   The following example

      As described in <<RFC7991>>.

   is converted to

      <t>
      As described in <xref target='RFC7991' />.
      </t>

4.66.1.  "format" Attribute

   The <xref> "format" attribute is generated from the format attribute
   in a cross reference, if present.

   The format attribute on a cross reference is an extension to standard
   AsciiDoc.

   The following example

      As described in <<RFC7991,format=counter>>.

   is converted to

      <t>
      As described in <xref target='RFC7991' format='counter'></xref>.
      </t>

4.66.2.  "relative" Attribute

   The <xref> "relative" attribute is generated from the relative
   attribute in a cross reference, if present.

   The relative attribute on a cross reference is an extension to
   standard AsciiDoc.

   The following example

      As described in <<RFC7991,relative=#rel>>.

   is converted to






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      <t>
      As described in <xref target='RFC7991' relative='#rel'></xref>.
      </t>

4.66.3.  "section" Attribute

   The <xref> "section" attribute is generated from the section
   attribute in a cross reference, if present.

   The section attribute on a cross reference is an extension to
   standard AsciiDoc.

   The following example

      As described in <<RFC7991,section=id28>>.

   is converted to

      <t>
      As described in <xref target='RFC7991' section='id28'></xref>.
      </t>

4.66.4.  "sectionFormat" Attribute

   The <xref> "sectionFormat" attribute is generated from the section-
   format attribute in a cross reference, if present.

   The section-format attribute on a cross reference is an extension to
   standard AsciiDoc.

   The following example

      As described in
      <<RFC7991,section-format=comma>>.

   is converted to

      <t>
      As described in
      <xref target='RFC7991' sectionFormat='comma'></xref>.
      </t>

4.66.5.  "target" Attribute

   The <xref> "target" attribute is generated from the target in a cross
   reference.

   The following example



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      As described in <<RFC7991>>.

   is converted to

      <t>
      As described in <xref target='RFC7991' />.
      </t>

5.  Informative References

   [AsciiDoc] "AsciiDoc", Accessed 23 April 2021, 8 March 2021,
              <https://en.wikipedia.org/wiki/AsciiDoc/>.

   [BetterBibTeX]
              "Better BibTeX for Zotero :: Better BibTeX for Zotero",
              Accessed 29 January 2023,
              <https://retorque.re/zotero-better-bibtex/>.

   [draft-petithuguenin-rfc-ontology]
              Petit-Huguenin, M., "An Ontology for RFCs", Work in
              Progress, Internet-Draft, draft-petithuguenin-rfc-
              ontology-03, 25 July 2023,
              <https://datatracker.ietf.org/doc/draft-petithuguenin-rfc-
              ontology/03>.

   [I-D.rswg-xml2rfcv3-implemented-01]
              Levine, J. R. and P. E. Hoffman, "The "xml2rfc" version 3
              Vocabulary as Implemented", Work in Progress, Internet-
              Draft, draft-rswg-xml2rfcv3-implemented, 8 March 2023,
              <https://datatracker.ietf.org/doc/draft-rswg-
              xml2rfcv3-implemented>.

   [RFC7322]  Flanagan, H. and S. Ginoza, "RFC Style Guide", RFC 7322,
              DOI 10.17487/RFC7322, September 2014,
              <https://www.rfc-editor.org/info/rfc7322>.

   [RFC7991]  Hoffman, P. E., "The "xml2rfc" Version 3 Vocabulary",
              Accessed 1 January 2023, RFC 7991, DOI 10.17487/RFC7991,
              December 2016, <https://datatracker.ietf.org/doc/rfc7991>.

   [WebPortionStyle]
              "Web Portion of the Style Guide » RFC Editor", Accessed 29
              January 2023,
              <https://www.rfc-editor.org/styleguide/part2/>.

   [Zotero]   Corporation for Digital Scholarship, "Zotero | Your
              personal research assistant", Accessed 20 January 2023,
              <https://www.zotero.org/>.



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6.  Example References

   [RFC3080]  Rose, M., "The Blocks Extensible Exchange Protocol Core",
              RFC 3080, DOI 10.17487/RFC3080, March 2001,
              <https://www.rfc-editor.org/info/rfc3080>.

   [RFC6323]  Renker, G. and G. Fairhurst, "Sender RTT Estimate Option
              for the Datagram Congestion Control Protocol (DCCP)",
              RFC 6323, DOI 10.17487/RFC6323, July 2011,
              <https://www.rfc-editor.org/info/rfc6323>.

   [RFC6429]  Bashyam, M., Jethanandani, M., and A. Ramaiah, "TCP Sender
              Clarification for Persist Condition", RFC 6429,
              DOI 10.17487/RFC6429, December 2011,
              <https://www.rfc-editor.org/info/rfc6429>.

   [RFC7322bis]
              Levine, J., Ed. and S. Ginoza, "RFC Style Guide", Work in
              Progress, Internet-Draft, draft-flanagan-7322bis-07, 7
              April 2021, <https://datatracker.ietf.org/doc/draft-
              flanagan-7322bis-07>.

   [STD13]    Mockapetris, P., "Domain names - concepts and facilities",
              RFC 1034, November 1987.

              Mockapetris, P., "Domain names - implementation and
              specification", RFC 1035, November 1987.

   [STD72]    Gellens, R. and J. Klensin, "Message Submission for Mail",
              RFC 6409, STD 72, November 2011.

Appendix A.  Command Line Tool

   The "asciidoctor-xml" Ruby gem is distributed as a git repository
   that can be installed as follow:

      git clone git://shalmaneser.org/sniElnixoip1 asciidoctor-xml2rfc
      cd asciidoctor-xml2rfc
      gem build asciidoctor-xml2rfc.gemspec
      sudo gem install asciidoctor-xml2rfc-0.3.gem

   Then an AsciiDoc file can be converted into an XML2RFC v3 file like
   this:

   asciidoctor-xml2rfc mapping-xml2rfc-asciidoc.adoc






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   Note that, if present, the value of the "doc-name" document header
   attribute will be used as the name of the output file.  This permits
   to keep the same file name but generate different versions by just
   changing the doc-name header.

   The command will write the name of the generated file on the standard
   output, so it can be used to generate the final document:

   xml2rfc -P --html --text \
     $(asciidoctor-xml2rfc mapping-xml2rfc-asciidoc.adoc)

   The "-P" option generates the text file without pagination, which
   permits to do a local diff between different versions of a draft
   (e.g., with the ":vert diffs <previous-file>" command in VIM).

Appendix B.  Build a Bibliography with Zotero

   The simplest way to build a bibliography is to use [Zotero] and the
   AsciiBib exporter provided in the git repository.  The Better BibTex
   for Zotero [BetterBibTeX] add-on is needed to manage the citation
   keys for the bibliographic items exported.

   First the "AsciiBib.js" file must be copied, or better symbolically
   linked, in the "data/translators" directory under the Zotero
   configuration directory (most likely "~/.zotero").

   To build a bibliography for an Internet-Draft, first create a new
   collection in Zotero and add bibliographic items in it.  E.g., a
   collection named "mapping-xml2rfc-asciidoc" contains a sub-collection
   named "informative", which itself contains all the references for
   this document.

   Bibliographic items can be created from scratch, scrapped from the
   Internet using web translators, or imported from an existing
   bibliography.  The git repository distributed with
   [draft-petithuguenin-rfc-ontology] contains a Zotero importer that
   can create the full collection of RFCs items in Zotero from the "rfc-
   index.xml" file.

   A Zotero collection can then be converted into a AsciiBib file by
   right-clicking on it, choosing "Export Collection...", select the
   "AsciiBib" format, then finally the target directory.  This will
   create an AsciiDoc file that can be imported in a bibliography
   section:

       include::examples.adoc[]





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   The Zotero exporter tries to export bibliographic items in a form
   that is as close as possible to the RFC Style guides [RFC7322]
   [WebPortionStyle].  The Section 6 bibliography in this document shows
   examples of bibliographic items converted from Zotero:

   RFC with one author or editor:  [RFC3080]

   RFC with two authors or editors:  [RFC6323]

   RFC with three or more authors or editors:  [RFC6429]

   STD or BCP that contains one RFC:  [STD72]

   STD or BCP that contains two or more RFCs:  [STD13]

   Internet-Draft:  [RFC7322bis]

Acknowledgments

   No technology that cannot explain its own results (LLM, AI/ML) have
   been involved in the creation of this document or its associated
   tooling.

Changelog

   This section is to be removed before publishing as an RFC.

   draft-petithuguenin-xml2rfc-asciidoc-02:
      *  Document:
         -  Update RFC 7991 successor reference.
      *  Tooling:
         -  Process text in definition list items with attached blocks.

   draft-petithuguenin-xml2rfc-asciidoc-01:
      *  Document:
         -  Add explanations for citation inclusion.
         -  Add new appendix that explains how to use Zotero to generate
            a bibliography.
      *  Tooling:
         -  Implemented citation extraction.
         -  The name of the generated file is written on the standard
            output.
         -  AsciiBib Zotero exporter.

Author's Address

   Marc Petit-Huguenin
   Impedance Mismatch LLC



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   Email: marc@petit-huguenin.org


















































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