Internet Engineering Task Force (IETF) C. Daboo
Request for Comments: 6321 Apple, Inc.
Category: Standards Track M. Douglass
ISSN: 2070-1721 RPI
S. Lees
Microsoft
August 2011
xCal: The XML Format for iCalendar
Abstract
This specification defines "xCal", an XML format for iCalendar data.
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/rfc6321.
Copyright Notice
Copyright (c) 2011 IETF Trust and the persons identified as the
document authors. All rights reserved.
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Daboo, et al. Standards Track [Page 1]RFC 6321 xCal August 2011Table of Contents
1. Introduction ....................................................3
2. Conventions Used in This Document ...............................4
3. Converting from iCalendar to xCal ...............................4
3.1. Pre-Processing .............................................4
3.2. iCalendar Stream (RFC 5545, Section 3.4) ...................5
3.3. Components (RFC 5545, Section 3.6) .........................6
3.4. Properties (RFC 5545, Sections 3.7 and 3.8) ................6
3.4.1. Special Cases for Properties ........................8
3.4.1.1. Multi-Valued Properties ....................8
3.4.1.2. GEO Property ...............................9
3.4.1.3. REQUEST-STATUS Property ....................9
3.5. Parameters (RFC 5545, Section 3.2) ........................10
3.5.1. VALUE Parameter ....................................11
3.6. Values (RFC 5545, Section 3.3) ............................11
3.6.1. Binary (RFC 5545, Section 3.3.1) ...................12
3.6.2. Boolean (RFC 5545, Section 3.3.2) .................12
3.6.3. Calendar User Address (RFC 5545, Section 3.3.3) ....12
3.6.4. Date (RFC 5545, Section 3.3.4) .....................12
3.6.5. Date-Time (RFC 5545, Section 3.3.5) ................13
3.6.6. Duration (RFC 5545, Section 3.3.6) .................13
3.6.7. Float (RFC 5545, Section 3.3.7) ....................13
3.6.8. Integer (RFC 5545, Section 3.3.8) ..................14
3.6.9. Period of Time (RFC 5545, Section 3.3.9) ...........14
3.6.10. Recurrence Rule (RFC 5545, Section 3.3.10) ........14
3.6.11. Text (RFC 5545, Section 3.3.11) ...................15
3.6.12. Time (RFC 5545, Section 3.3.12) ...................15
3.6.13. URI (RFC 5545, Section 3.3.13) ....................15
3.6.14. UTC Offset (RFC 5545, Section 3.3.14) .............16
3.7. Extensions ................................................16
4. Converting from xCal into iCalendar ............................16
4.1. Converting XML Extensions into iCalendar ..................16
4.2. The XML Property for iCalendar ............................17
5. Handling Unrecognized Properties or Parameters .................18
6. Security Considerations ........................................19
7. IANA Considerations ............................................20
7.1. Namespace Registration ....................................20
7.2. Media Type ................................................20
7.3. iCalendar Property Registrations ..........................21
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