hCalendar Example 1 Steps
This is a step by step explanation of the first example in the hCalendar specification.
Note: this example derivation needs to be updated to incorporate the dtend-issue resolution.
Here is a sample event in an iCalendar:
BEGIN:VCALENDAR PRODID:-//XYZproduct//EN VERSION:2.0 BEGIN:VEVENT URL:http://www.web2con.com/ DTSTART:20071017 DTEND:20071020 SUMMARY:Web 2.0 Conference LOCATION:Argent Hotel\, San Francisco\, CA END:VEVENT END:VCALENDAR
and an equivalent event in hCalendar format with various elements optimized appropriately. See hCalendar Example 1 Steps for the derivation.
<div class="vevent"> <a class="url" href="http://www.web2con.com/">http://www.web2con.com/</a> <span class="summary">Web 2.0 Conference</span>: <span class="dtstart">20071017</span>- <span class="dtend">20071019</span>, at the <span class="location">Argent Hotel, San Francisco, CA</span> </div>
which could be displayed as:
http://www.web2con.com/ Web 2.0 Conference: 20071017- 20071019, at the Argent Hotel, San Francisco, CA
Note that this is a live hCalendar microformat, which will be found on this page by parsers.
Note 1: The product information is not necessary since hCalendar is an interchange format. When transforming hCalendar back into iCalendar, the transforming engine should add its own product ID.
Note 2: A surrounding element is optional, and can be left out as such. It is optional since the context of a vcalendar is implied when a vevent is encountered. The implied context/scope is that of the document. Authors may explicitly use elements with class="vcalendar" to wrap sets of vevents that all belong to the same calendar, e.g. when publishing multiple calendars on the same page.
Note 3: The version information is unnecessary in hCalendar markup directly since the version will be defined by the profile of hCalendar that is used/referred to in the 'profile' attribute of the <head> element.
Note 4: ISO8601 dates are however not very human friendly. Not only that, in the case of the end datetime (DTEND), the date must be specified as a whole day after the last day since DTEND is exclusive! In addition, the year is often understood implicitly by humans from the context. Thus this example could be improved by using <abbr> to make the date information more human readable and friendly, e.g.
<span class="vevent"> <a class="url" href="http://www.web2con.com/">http://www.web2con.com/</a> <span class="summary">Web 2.0 Conference</span>: <abbr class="dtstart" title="20071017">October 17</abbr>- <abbr class="dtend" title="20071020">19</abbr>, at the <span class="location">Argent Hotel, San Francisco, CA</span> </span>
which could be displayed as:
http://www.web2con.com/ Web 2.0 Conference: October 17- 19, at the Argent Hotel, San Francisco, CA
- hCalendar - specification
- hCalendar intro - plain English introduction
- hCalendar authoring - learn how to add hCalendar markup to your existing events.
- hCalendar creator (hCalendar creator feedback) - create your own hCalendar events.
- hCalendar cheatsheet - hCalendar properties
- hCalendar examples in the wild - an on-going list of websites which use hCalendars.
- hCalendar implementations - websites or tools which either generate or parse hCalendars
- hCalendar FAQ - If you have any questions about hCalendar, check here.
- hCalendar parsing - normative details of how to parse hCalendar.
- hCalendar profile - the XMDP profile for hCalendar
- hCalendar singular properties - an explanation of the list of singular properties in hCalendar.
- hCalendar tests - a wiki page with actual embedded hCalendar events to try parsing.
- hCalendar "to do" - jobs to do
- hCalendar advocacy - encourage others to use hCalendar.
- iCalendar implementations
This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. These thoughts, issues, and questions are kept in separate pages.