Tango.info iCal

• http://tools.ietf.org/html/rfc5545
• DRAFT: http://tools.ietf.org/html/draft-daboo-et-al-icalendar-in-xml-11
• http://en.wikipedia.org/wiki/ICalendar

• 2006-03-13 festivals.tango.info adds basic ical feature, each festival gets an .ics file
• 2010-06-15 upcoming festivals available at http://www.tango.info/festivals.ics

example file for one festival

BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
PRODID:-//tango info//tango info cal//EN
BEGIN:VEVENT
UID:tango.info/2010DEBERA
URL:http://www.tango.info/2010DEBERA
DTSTART:20100601T140000Z
DTEND:20100605T040000Z
SUMMARY:Festival Berlin 2010
DESCRIPTION:Festival Berlin 2010\n\nMariana Montes, Sebastián Arce
LOCATION:Berlin, Germany
GEO:52.520895,13.409672
CLASS:PUBLIC
CATEGORIES;LANGUAGE=en:tango,festival
DTSTAMP:20090101T010101
END:VEVENT
END:VCALENDAR

• RELATED-TO;RELTYPE=SIBLING|PARENT|CHILD:tango.info/2010DEBERA

Fields

Seperators

• 3.1.1. List and Field Separators
  • COMMA - Values in a list of values MUST be separated by a COMMA character.
  • SEMICOLON
    • Some property values are defined in terms of multiple parts. These structured property values MUST have their value parts separated by a SEMICOLON character.
    • Some properties allow a list of parameters. Each property parameter in a list of property parameters MUST be separated by a SEMICOLON character.
  • COLON ?

Example:

• ATTENDEE;RSVP=TRUE;ROLE=REQ-PARTICIPANT:mailto:jsmith@example.com
• RDATE;VALUE=DATE:19970304,19970504,19970704,19970904

Listing

iCal section	iCal name	Example	Note	Tango.info
3.2.2. Common Name	CN
3.2.3. Calendar User Type	CUTYPE	ATTENDEE;CUTYPE=GROUP:mailto:ietf-calsch@example.org	seems to identify people and resources; INDIVIDUAL, ,GROUP, ROOM ....
3.2.10. Language	LANGUAGE	SUMMARY;LANGUAGE=en-US:Company Holiday Party LOCATION;LANGUAGE=en:Germany	language tag per RFC5646
3.2.15. Relationship Type	RELTYPE		PARENT, CHILD, SIBLING
3.2.19. Time Zone Identifier	TZID	America/New_York		derive from "region"?
3.3.12. Time ???	DTSTART	DTSTART;TZID=America/New_York:19980101T090000
3.3.12. Time ???	DTEND
3.3.12. Time ???	RRULE	RRULE:FREQ=WEEKLY;UNTIL=19971224T000000Z	UNTIL-time in UTC!
3.8.1.2. Categories	CATEGORIES	CATEGORIES:APPOINTMENT,EDUCATION		use for event types?
3.8.1.3. Classification	CLASS	CLASS:PUBLIC	"PUBLIC" / "PRIVATE" / "CONFIDENTIAL" /...
3.8.1.4. Comment	COMMENT			try not to use - free text can be problematic
3.8.1.5. Description				to be generated?
3.8.1.6. Geographic Position	GEO	GEO:37.386013;-122.082932		optional
3.8.1.7.	LOCATION	LOCATION:Conference Room - F123\, Bldg. 002 LOCATION;ALTREP="http://xyzcorp.com/conf-rooms/f123.vcf":Conference Room - F123\, Bldg. 002		deberwl001 (TI-location identifier, composed of country, city, venue code and running number: DE BER WL 001)
3.8.1.12. Summary	SUMMARY	SUMMARY:Department Party		64 char
3.8.4.3. Organizer	ORGANIZER	ORGANIZER;CN=John Smith:mailto:jsmith@example.com ORGANIZER;CN=JohnSmith;DIR="ldap://example.com:6666/o=DCA,c=US???(cn=John%20Smith)":mailto:jsmith@example.com
3.8.4.5. Related To	RELATED-TO	RELATED-TO;RELTYPE=SIBLING:19960401-080045-4000F192713@example.com

xCal

Lowercasing:

Each calendar component in the "VCALENDAR" object, delimited by "BEGIN" and "END", will be converted to an enclosing XML element with the same name, but in lowercase.

Each individual iCalendar property is represented in xCal by an element of the same name as the iCalendar property, but in lowercase. For example, the "CALSCALE" property is represented in xCal by the IC:calscale element.

Validator

• http://severinghaus.org/projects/icv/ - rough check
• http://arnout.engelen.eu/icalendar-validator/urlvalidate - more checks