Network Working Group                                       S. Perreault
Internet-Draft                                                  Viagenie
Obsoletes: 2425, 2426, 4770                            November 18, 2008
(if approved)
Updates: 2739 (if approved)
Intended status: Standards Track
Expires: May 22, 2009


                            vCard XML Schema
                  draft-perreault-vcarddav-vcardxml-00

Status of This Memo

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   This Internet-Draft will expire on May 22, 2009.

Abstract

   This document defines the XML schema of the vCard data format.











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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  The Schema  . . . . . . . . . . . . . . . . . . . . . . . . . . 3
   3.  Example: Author's XML vCard . . . . . . . . . . . . . . . . . . 4
   4.  Design Considerations . . . . . . . . . . . . . . . . . . . . . 4
     4.1.  Extensibility . . . . . . . . . . . . . . . . . . . . . . . 5
   5.  Security Considerations . . . . . . . . . . . . . . . . . . . . 5
   6.  Normative References  . . . . . . . . . . . . . . . . . . . . . 5
   Appendix A.  Relax NG Schema  . . . . . . . . . . . . . . . . . . . 5









































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1.  Introduction

   vCard [draft-ietf-vcarddav-vcardrev] is a data format for
   representing and exchanging information about individuals.  It is a
   text-based format (as opposed to a binary format).  This document
   defines an XML representation for vCard.  The underlying data
   structure is exactly the same.  The XML formatting may be preferred
   in some contexts where an XML engine is readily available and may be
   reused instead of writing a stand-alone vCard parser.

2.  The Schema

   The schema is expressed in the Relax NG language (TODO: add
   reference) and is found in Appendix A.





































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3.  Example: Author's XML vCard

   <?xml version="1.0" encoding="UTF-8"?>
   <vcard xmlns="vcard_namespace_goes_here">
     <!-- TODO: use final vCard XML namespace -->
     <version>4.0</version>
     <fn>Simon Perreault</fn>
     <n>
       <surname>Perreault</surname>
       <given>Simon</given>
       <suffix>ing. jr.</suffix>
       <suffix>M.Sc.</suffix>
     </n>
     <bday>1983-02-03</bday>
     <gender>M</gender>
     <org><name>Viagenie</name></org>
     <adr>
       <ext>Suite 625</ext>
       <street>2600 boul. Laurier</street>
       <locality>Quebec</locality>
       <region>QC</region>
       <postal>G1V 4W1</postal>
       <country>Canada</country>
     </adr>
     <tel type="voice">tel:+1-418-656-9254;ext=102</tel>
     <email>simon.perreault@viagenie.ca</email>
     <geo>
       <lat>46.772673</lat>
       <lon>-71.282945</lon>
     </geo>
     <key value="uri">
       http://www.viagenie.ca/simon.perreault/simon.asc
     </key>
     <class>public</class>
   </vcard>

4.  Design Considerations

   The general idea is to map vCard properties to XML element and vCard
   parameters to XML attributes.  For example, the "FN" property is
   mapped to the "fn" element.  That element's value (a text node)
   corresponds to the vCard property's value.

   vCard parameters are mapped to XML attributes.  For example, the
   "TYPE" parameter applied to the "TEL" property would look like the
   following in XML:

     <tel type="voice">tel:+1-555-555-555</tel>



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   Properties having structured values (e.g. the N property) are
   expressed by XML element trees.  Element names in that tree (e.g.
   "surname", "given", etc.) do not have a vCard equivalent since they
   are identified by position in plain vCard.

   Line folding is a non-issue in XML.  Therefore, the mapping from
   vCard to XML is done after the unfolding procedure is carried out.
   Conversely, the mapping from XML to vCard is done before the folding
   procedure is carried out.

4.1.  Extensibility

   The original vCard format is extensible.  New properties, parameters,
   data types and values (collectively known as vCard objects) can be
   registered from IANA.  It is expected that these vCard extensions
   will also specify extensions to the XML format described in this
   document.  This is not a requirement: a separate document may be used
   instead.

   Unregistered extensions (i.e. those starting with "X-" and
   "VND-...-") can be expressed in XML using the special <x-prop>
   element.  For example:

     <x-prop>
       <name>x-foo</name>
       <value>
         <bar>abc</bar>
         <baz>xyz</baz>
       </value>
     </x-prop>

   The content of the "name" element MUST start with "X-" or "VND-...-"
   as specified in [draft-ietf-vcarddav-vcardrev].  The contents of the
   "value" element is not specified and MAY be any well-formed XML
   fragment.

5.  Security Considerations

   TBD

6.  Normative References

   [draft-ietf-vcarddav-vcardrev]  Perreault, S. and P. Resnick, "vCard
                                   Format Specification", 2008.

Appendix A.  Relax NG Schema

  <?xml version="1.0"?>



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  <grammar xmlns="http://relaxng.org/ns/structure/1.0"
    datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes"
    ns="vcard_namespace_goes_here">
    <!-- TODO: define a real namespace -->


    <!-- Misc. definitions -->

    <define name="x-name">
      <data type="string">
        <param name="pattern">[Xx]-[A-Za-z0-9\-]+</param>
      </data>
    </define>

    <define name="vnd-name">
      <data type="string">
        <param name="pattern">vnd-[0-9]+-[A-Za-z0-9\-]+</param>
      </data>
    </define>

    <define name="mime-type">  <!-- See RFC 4288, Section 4.2 -->
      <data type="string">
        <param name="pattern">[A-Za-z0-9!#$&amp;.+\-^_]{1,127}
          /[A-Za-z0-9!#$&amp;.+\-^_]{1,127}</param>
      </data>
    </define>

    <define name="anything">
      <zeroOrMore>
        <choice>
          <text/>
          <element>
            <anyName/>
            <zeroOrMore><attribute><anyName/></attribute></zeroOrMore>
            <ref name="anything"/>
          </element>
        </choice>
      </zeroOrMore>
    </define>


    <!-- Value types -->

    <define name="value-text">
      <text/>  <!-- Is this more permissive than *VALUE-CHAR ? -->
    </define>

    <define name="value-uri">



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      <data type="anyURI"/>
    </define>

    <define name="value-date">
      <data type="date"/>
    </define>

    <define name="value-time">
      <data type="time"/>
    </define>

    <define name="value-date-time">
      <data type="dateTime"/>
    </define>

    <define name="value-binary">
      <data type="string">  <!-- Is encoding parameter necessary? -->
        <param name="pattern">[A-Za-z0-9+/]*</param>
      </data>
    </define>

    <define name="value-utc-offset">
      <data type="string">
        <param name="pattern">[+\-]([01][0-9]|2[0-3]):[0-5][0-9]</param>
      </data>
    </define>


    <!-- General parameters -->

    <define name="param-language">
      <attribute name="language">
        <text/>  <!-- TODO: validate based on RFC4646 Section 2.1 -->
      </attribute>
    </define>

    <define name="param-pid">
      <attribute name="pid">
        <oneOrMore>
          <data type="nonNegativeInteger"/>
        </oneOrMore>
      </attribute>
    </define>

    <define name="param-pref">
      <attribute name="pref"/>  <!-- Probably can't be empty. -->
    </define>




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    <!-- Properties -->

    <define name="prop-source">
      <element name="source">
        <ref name="value-uri"/>
      </element>
    </define>

    <define name="prop-name">
      <element name="name">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-kind">
      <element name="kind">
        <choice>
          <value>individual</value>
          <value>group</value>
          <value>org</value>
          <ref name="x-name"/>
        </choice>
      </element>
    </define>

    <define name="prop-fn">
      <element name="fn">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-n">
      <element name="n">
        <optional>
          <element name="surname">
            <ref name="value-text"/>
          </element>
        </optional>
        <zeroOrMore>
          <element name="given">
            <ref name="value-text"/>
          </element>
        </zeroOrMore>
        <zeroOrMore>
          <element name="prefix">
            <ref name="value-text"/>
          </element>
        </zeroOrMore>



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        <zeroOrMore>
          <element name="suffix">
            <ref name="value-text"/>
          </element>
        </zeroOrMore>
      </element>
    </define>

    <define name="prop-nickname">
      <element name="nickname">
        <oneOrMore>
          <ref name="value-text"/>
        </oneOrMore>
      </element>
    </define>

    <define name="prop-photo">
      <element name="photo">
        <choice>
          <group>
            <attribute name="type">
              <ref name="mime-type"/>
            </attribute>
            <ref name="value-binary"/>
          </group>
          <group>
            <attribute name="value">
              <value>uri</value>
            </attribute>
            <ref name="value-uri"/>
          </group>
        </choice>
      </element>
    </define>

    <define name="prop-bday">
      <element name="bday">
        <choice>
          <ref name="value-date"/>
          <ref name="value-date-time"/>
          <group>
            <attribute name="value">
              <value>text</value>
            </attribute>
            <ref name="value-text"/>
          </group>
        </choice>
      </element>



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    </define>

    <define name="prop-dday">
      <element name="dday">
        <choice>
          <ref name="value-date"/>
          <ref name="value-date-time"/>
          <group>
            <attribute name="value">
              <value>text</value>
            </attribute>
            <ref name="value-text"/>
          </group>
        </choice>
      </element>
    </define>

    <define name="prop-birth">
      <element name="birth">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-death">
      <element name="death">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-gender">
      <element name="gender">
        <choice>
          <value>M</value>
          <value>F</value>
        </choice>
      </element>
    </define>

    <define name="prop-adr">
      <element name="adr">
        <optional>
          <element name="pobox">
            <ref name="value-text"/>
          </element>
        </optional>
        <optional>
          <element name="ext">
            <ref name="value-text"/>



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          </element>
        </optional>
        <optional>
          <element name="street">
            <ref name="value-text"/>
          </element>
        </optional>
        <optional>
          <element name="locality">
            <ref name="value-text"/>
          </element>
        </optional>
        <optional>
          <element name="region">
            <ref name="value-text"/>
          </element>
        </optional>
        <optional>
          <element name="postal">
            <ref name="value-text"/>
          </element>
        </optional>
        <optional>
          <element name="country">
            <ref name="value-text"/>
          </element>
        </optional>
      </element>
    </define>

    <define name="prop-label">
      <element name="label">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-tel">
      <element name="tel">
        <optional><ref name="param-pref"/></optional>
        <zeroOrMore>
          <attribute name="type">
            <choice>
              <value>text</value>
              <value>voice</value>
              <value>fax</value>
              <value>cell</value>
              <value>video</value>
              <value>pager</value>



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            </choice>
          </attribute>
        </zeroOrMore>
        <ref name="value-uri"/>
      </element>
    </define>

    <define name="prop-email">
      <element name="email">
        <optional><ref name="param-pref"/></optional>
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-impp">
      <element name="impp">
        <ref name="param-pref"/>
        <ref name="value-uri"/>
      </element>
    </define>

    <define name="prop-lang">
      <element name="lang">
        <oneOrMore>
          <ref name="value-text"/>
        </oneOrMore>
      </element>
    </define>

    <define name="prop-tz">
      <element name="tz">
        <choice>
          <ref name="value-utc-offset"/>
          <group>
            <attribute name="value">
              <value>text</value>
            </attribute>
            <ref name="value-text"/>
          </group>
        </choice>
      </element>
    </define>

    <define name="prop-geo">
      <element name="geo">
        <element name="lat"><data type="float"/></element>
        <element name="lon"><data type="float"/></element>
      </element>



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    </define>

    <define name="prop-title">
      <element name="title">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-role">
      <element name="role">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-logo">
      <element name="logo">
        <choice>
          <group>
            <attribute name="type">
              <ref name="mime-type"/>
            </attribute>
            <ref name="value-binary"/>
          </group>
          <group>
            <attribute name="value">
              <value>uri</value>
            </attribute>
            <ref name="value-uri"/>
          </group>
        </choice>
      </element>
    </define>

    <define name="prop-org">
      <element name="org">
        <element name="name">
          <ref name="value-text"/>
        </element>
        <zeroOrMore>
          <element name="unit">
            <ref name="value-text"/>
          </element>
        </zeroOrMore>
      </element>
    </define>

    <define name="prop-member">
      <element name="member">



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        <ref name="value-uri"/>
      </element>
    </define>

    <define name="prop-related">
      <element name="related">
        <attribute name="type">
          <choice>
            <value>parent</value>
            <value>child</value>
            <value>sibling</value>
            <value>manager</value>
            <value>assistant</value>
            <value>agent</value>
          </choice>
        </attribute>
        <ref name="value-uri"/>
      </element>
    </define>

    <define name="prop-categories">
      <element name="categories">
        <oneOrMore>
          <element name="category">
            <ref name="value-text"/>
          </element>
        </oneOrMore>
      </element>
    </define>

    <define name="prop-note">
      <element name="prop">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-prodid">
      <element name="prodid">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-rev">
      <element name="rev">
        <choice>
          <ref name="value-date"/>
          <ref name="value-date-time"/>
        </choice>



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      </element>
    </define>

    <define name="prop-sort-string">
      <element name="sort-string">
        <ref name="value-text"/>
      </element>
    </define>

    <define name="prop-sound">
      <element name="sound">
        <choice>
          <group>
            <attribute name="type">
              <ref name="mime-type"/>
            </attribute>
            <ref name="value-binary"/>
          </group>
          <group>
            <attribute name="value">
              <value>uri</value>
            </attribute>
            <ref name="value-uri"/>
          </group>
        </choice>
      </element>
    </define>

    <define name="prop-uid">
      <element name="uid">
        <ref name="value-uri"/>
      </element>
    </define>

    <define name="prop-url">
      <element name="url">
        <ref name="value-uri"/>
      </element>
    </define>

    <define name="prop-version">
      <element name="version">
        <value>4.0</value>
      </element>
    </define>

    <define name="prop-class">
      <element name="class">



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        <choice>
          <value>public</value>
          <value>private</value>
          <value>confidential</value>
          <ref name="x-name"/>
        </choice>
      </element>
    </define>

    <define name="prop-key">
      <element name="key">
        <choice>
          <group>
            <attribute name="type">
              <ref name="mime-type"/>
            </attribute>
            <ref name="value-binary"/>
          </group>
          <group>
            <attribute name="value">
              <value>uri</value>
            </attribute>
            <ref name="value-uri"/>
          </group>
        </choice>
      </element>
    </define>

    <define name="prop-fburl">
      <element name="fburl">
        <ref name="param-pref"/>
        <ref name="value-uri"/>
      </element>
    </define>

    <define name="prop-caladruri">
      <element name="caladruri">
        <ref name="param-pref"/>
        <ref name="value-uri"/>
      </element>
    </define>

    <define name="prop-caluri">
      <element name="caluri">
        <ref name="param-pref"/>
        <ref name="value-uri"/>
      </element>
    </define>



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    <define name="extended-prop">
      <element name="x-prop">
        <element name="name">
          <choice>
            <ref name="x-name"/>
            <ref name="vnd-name"/>
          </choice>
        </element>
        <element name="value">
          <ref name="anything"/>
        </element>
      </element>
    </define>


    <!-- Top-level grammar -->

    <start>
      <element name="vcard">
        <!-- TODO: allow multiple instance properties -->
        <!-- TODO: group structure -->
        <interleave>
          <optional><ref name="prop-source"/></optional>
          <optional><ref name="prop-name"/></optional>
          <optional><ref name="prop-kind"/></optional>
          <ref name="prop-fn"/>
          <optional><ref name="prop-n"/></optional>
          <optional><ref name="prop-nickname"/></optional>
          <optional><ref name="prop-photo"/></optional>
          <optional><ref name="prop-bday"/></optional>
          <optional><ref name="prop-dday"/></optional>
          <optional><ref name="prop-birth"/></optional>
          <optional><ref name="prop-death"/></optional>
          <optional><ref name="prop-gender"/></optional>
          <optional><ref name="prop-adr"/></optional>
          <optional><ref name="prop-label"/></optional>
          <optional><ref name="prop-tel"/></optional>
          <optional><ref name="prop-email"/></optional>
          <optional><ref name="prop-impp"/></optional>
          <optional><ref name="prop-lang"/></optional>
          <optional><ref name="prop-tz"/></optional>
          <optional><ref name="prop-geo"/></optional>
          <optional><ref name="prop-title"/></optional>
          <optional><ref name="prop-role"/></optional>
          <optional><ref name="prop-logo"/></optional>
          <optional><ref name="prop-org"/></optional>
          <optional><ref name="prop-member"/></optional>
          <optional><ref name="prop-related"/></optional>



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          <optional><ref name="prop-categories"/></optional>
          <optional><ref name="prop-note"/></optional>
          <optional><ref name="prop-prodid"/></optional>
          <optional><ref name="prop-rev"/></optional>
          <optional><ref name="prop-sort-string"/></optional>
          <optional><ref name="prop-sound"/></optional>
          <optional><ref name="prop-uid"/></optional>
          <optional><ref name="prop-url"/></optional>
          <ref name="prop-version"/>
          <optional><ref name="prop-class"/></optional>
          <optional><ref name="prop-key"/></optional>
          <optional><ref name="extended-prop"/></optional>
        </interleave>
      </element>
    </start>

  </grammar>


Author's Address

   Simon Perreault
   Viagenie
   2600 boul. Laurier, suite 625
   Quebec, QC  G1V 4W1
   Canada

   Phone: +1 418 656 9254
   EMail: simon.perreault@viagenie.ca
   URI:   http://www.viagenie.ca





















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Full Copyright Statement

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Acknowledgement

   This document was produced using xml2rfc v1.33 (of
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