jCard: The JSON Format for vCard
RFC 7095
Internet Engineering Task Force (IETF) P. Kewisch
Request for Comments: 7095 Mozilla
Category: Standards Track January 2014
ISSN: 2070-1721
jCard: The JSON Format for vCard
Abstract
This specification defines "jCard", a JSON format for vCard data.
The vCard data format is a text format for representing and
exchanging information about individuals and other entities, for
example, telephone numbers, email addresses, structured names, and
delivery addresses. JSON is a lightweight, text-based, language-
independent data interchange format commonly used in Internet
applications.
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/rfc7095.
Copyright Notice
Copyright (c) 2014 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
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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.
Kewisch Standards Track [Page 1]
RFC 7095 jCard January 2014
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Conventions Used in This Document . . . . . . . . . . . . . . 3
3. Converting from vCard to jCard . . . . . . . . . . . . . . . 4
3.1. Pre-processing . . . . . . . . . . . . . . . . . . . . . 4
3.2. jCard Object and Syntactic Entities (RFC 6350, Sections
6.1.1 and 6.1.2) . . . . . . . . . . . . . . . . . . . . 5
3.3. Properties (RFC 6350, Section 6) . . . . . . . . . . . . 5
3.3.1. Special Cases for Properties . . . . . . . . . . . . 7
3.3.1.1. The VERSION Property . . . . . . . . . . . . . . 7
3.3.1.2. Grouping of Properties . . . . . . . . . . . . . 7
3.3.1.3. Structured Property Values . . . . . . . . . . . 8
3.4. Parameters (RFC 6350, Section 5) . . . . . . . . . . . . 10
3.4.1. VALUE Parameter . . . . . . . . . . . . . . . . . . . 10
3.4.2. Multi-Valued Parameters . . . . . . . . . . . . . . . 11
3.5. Values (RFC 6350, Section 4) . . . . . . . . . . . . . . 11
3.5.1. Text (RFC 6350, Section 4.1) . . . . . . . . . . . . 12
3.5.2. URI (RFC 6350, Section 4.2) . . . . . . . . . . . . . 12
3.5.3. Date (RFC 6350, Section 4.3.1) . . . . . . . . . . . 12
3.5.4. Time (RFC 6350, Section 4.3.2) . . . . . . . . . . . 13
3.5.5. Date-Time (RFC 6350, Section 4.3.3) . . . . . . . . . 14
3.5.6. Date and/or Time (RFC 6350, Section 4.3.4) . . . . . 16
3.5.7. Timestamp (RFC 6350, Section 4.3.5) . . . . . . . . . 16
3.5.8. Boolean (RFC 6350, Section 4.4) . . . . . . . . . . . 17
3.5.9. Integer (RFC 6350, Section 4.5) . . . . . . . . . . . 17
3.5.10. Float (RFC 6350, Section 4.6) . . . . . . . . . . . . 17
3.5.11. UTC Offset (RFC 6350, Section 4.7) . . . . . . . . . 18
3.5.12. Language Tag (RFC 6350, Section 4.8) . . . . . . . . 18
3.6. Extensions (RFC 6350, Section 6.10) . . . . . . . . . . . 18
4. Converting from jCard into vCard . . . . . . . . . . . . . . 19
5. Handling Unrecognized Properties or Parameters . . . . . . . 19
5.1. Converting vCard into jCard . . . . . . . . . . . . . . . 19
5.2. Converting jCard into vCard . . . . . . . . . . . . . . . 20
5.3. Examples . . . . . . . . . . . . . . . . . . . . . . . . 20
6. Security Considerations . . . . . . . . . . . . . . . . . . . 21
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 22
7.1. GROUP vCard Parameter . . . . . . . . . . . . . . . . . . 23
7.2. UNKNOWN vCard Value Data Type . . . . . . . . . . . . . . 24
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