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/rfc6474.
Copyright Notice
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The base vCard 4.0 specification [RFC6350] 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.
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 [RFC2119].
Syntax specifications shown here use the augmented Backus-Naur Form (ABNF) as described in [RFC5234], and are specified as in the base vCard specification [RFC6350].
DEATHPLACE:Aboard the Titanic\, near Newfoundland DEATHPLACE;VALUE=uri:http://example.com/ships/titanic.vcf DEATHPLACE;VALUE=uri:geo:41.731944,-49.945833
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.
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.