Enter chinese/english word(s), Taiwan address or math. expression :

可輸入英文單字中文字詞台灣地址計算式 按[Enter]重新輸入
Internet Engineering Task Force (IETF)                             K. Li
Request for Comments: 6474                                      B. Leiba
Category: Standards Track                            Huawei Technologies
ISSN: 2070-1721                                            December 2011

    vCard Format Extensions: Place of Birth, Place and Date of Death

Abstract

   The base vCard 4.0 specification defines a large number of
   properties, including date of birth.  This specification adds three
   new properties to vCard 4.0: place of birth, place of death, and date
   of death.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/RFC 6474.

Copyright Notice

   Copyright (c) 2011 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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

Li & Leiba                   Standards Track                    [Page 1]
RFC 6474 Birth/Death Extensions December 2011 Table of Contents 1. Introduction ....................................................2 1.1. Terminology Used in This Document ..........................2 2. Identification Property Extensions ..............................2 2.1. Property: BIRTHPLACE .......................................2 2.2. Property: DEATHPLACE .......................................3 2.3. Property: DEATHDATE ........................................4 3. Security Considerations .........................................5 4. IANA Considerations .............................................5 5. Acknowledgements ................................................5 6. Normative References ............................................5 1. Introduction The base vCard 4.0 specification [RFC 6350] defines a large number of properties, including date of birth. This specification adds three new properties to vCard 4.0: place of birth, place of death, and date of death. 1.1. Terminology Used in This Document The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC 2119]. Syntax specifications shown here use the augmented Backus-Naur Form (ABNF) as described in [RFC 5234], and are specified as in the base vCard specification [RFC 6350]. 2. Identification Property Extensions 2.1. Property: BIRTHPLACE Namespace: Property name: BIRTHPLACE Purpose: To specify the place of birth of the object the vCard represents. Value type: A single text value (default) or a single URI value. Cardinality: *1 Property parameters: VALUE, LANGUAGE Li & Leiba Standards Track [Page 2]
RFC 6474 Birth/Death Extensions December 2011 Description: Format definition: BIRTHPLACE-param = "VALUE=" ("text" / "uri") BIRTHPLACE-value = text / uri ; Value type and VALUE parameter MUST match. BIRTHPLACE-param =/ altid-param / language-param / any-param Examples: BIRTHPLACE:Babies'R'Us Hospital BIRTHPLACE;VALUE=uri:http://example.com/hospitals/babiesrus.vcf BIRTHPLACE;VALUE=uri:geo:46.769307,-71.283079 2.2. Property: DEATHPLACE Namespace: Property name: DEATHPLACE Purpose: To specify the place of death of the object the vCard represents. Value type: A single text value (default) or a single URI value. Cardinality: *1 Property parameters: VALUE, LANGUAGE Description: Format definition: DEATHPLACE-param = "VALUE=" ("text" / "uri") DEATHPLACE-value = text / uri ; Value type and VALUE parameter MUST match. DEATHPLACE-param =/ altid-param / language-param / any-param Examples: DEATHPLACE:Aboard the Titanic\, near Newfoundland DEATHPLACE;VALUE=uri:http://example.com/ships/titanic.vcf DEATHPLACE;VALUE=uri:geo:41.731944,-49.945833 Li & Leiba Standards Track [Page 3]
RFC 6474 Birth/Death Extensions December 2011 2.3. Property: DEATHDATE Namespace: Property name: DEATHDATE Purpose: To specify the date of death of the object the vCard represents. Value type: The default is a single date-and-or-time value. It can also be reset to a single text value. Cardinality: *1 Property parameters: VALUE, CALSCALE, LANGUAGE CALSCALE can only be present when the value is a date-and-or-time value and actually contains a date or date-time. LANGUAGE can only be present when the value is text. Description: The presence of a DEATHDATE property indicates that the subject of the vCard is known to be dead. The absence of this property makes no statement one way or the other. Format definition: DEATHDATE-param = DEATHDATE-param-date / DEATHDATE-param-text DEATHDATE-value = date-and-or-time / text ; Value type and VALUE parameter MUST match. DEATHDATE-param-date = "VALUE=date-and-or-time" / calscale-param ; calscale-param can only be present when DEATHDATE-value is ; date-and-or-time and actually contains a date or date-time. DEATHDATE-param-date = "VALUE=text" / language-param DEATHDATE-param =/ altid-param / any-param Examples: DEATHDATE:19960415 DEATHDATE:--0415 DEATHDATE;19531015T231000Z DEATHDATE;VALUE=text:circa 1800 Li & Leiba Standards Track [Page 4]
RFC 6474 Birth/Death Extensions December 2011 3. Security Considerations The properties defined in this document present no security considerations beyond those in Section 9 of the base vCard specification [RFC 6350]. 4. IANA Considerations IANA has added the following entries to the vCard Properties registry, defined in Section 10.3.1 of [RFC 6350]. +-----------+--------------+------------------------+ | Namespace | Property | Reference | +-----------+--------------+------------------------+ | | BIRTHPLACE | [RFC 6474], Section 2.1 | | | DEATHPLACE | [RFC 6474], Section 2.2 | | | DEATHDATE | [RFC 6474], Section 2.3 | +-----------+--------------+------------------------+ 5. Acknowledgements The authors of this document would like to thank Simon Perreault and Pete Resnick, the authors of a draft version of RFC 6350 whence the properties defined herein originated. 6. Normative References [RFC 2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC 5234] Crocker, D., Ed., and P. Overell, "Augmented BNF for Syntax Specifications: ABNF", STD 68, RFC 5234, January 2008. [RFC 6350] Perreault, S., "vCard Format Specification", RFC 6350, August 2011. Li & Leiba Standards Track [Page 5]
RFC 6474 Birth/Death Extensions December 2011 Authors' Addresses Kepeng Li Huawei Technologies Huawei Base, Bantian, Longgang District Shenzhen, Guangdong 518129 P.R. China Phone: +86-755-28974289 EMail: likepeng@huawei.com Barry Leiba Huawei Technologies Phone: +1 646 827 0648 EMail: barryleiba@computer.org URI: http://internetmessagingtechnology.org/ Li & Leiba Standards Track [Page 6]