Microformats Wiki - User contributions [en]

vote-links

2005-12-13T02:29:38Z

Qolyan:

= Vote Links =
__TOC__
== Draft Specification 2005 ==
=== Editor ===
* [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc.] (formerly of [http://microsoft.com/ Microsoft Corporation])

=== Concept ===
* [http://epeus.blogspot.com/ Kevin Marks], [http://technorati.com, Technorati,Inc.]

=== Authors ===
* [http://epeus.blogspot.com/ Kevin Marks], [http://technorati.com Technorati, Inc]
* [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to everyone who has given feedback on VoteLinks. Thanks especially to EtanWexler, who provided the first really good documentation that VoteLinks should be using 'rev' instead of 'rel' (see [[VoteLinksFAQ]]), and John Allsopp who similarly challenged the use of 'rel', and helped co-author the [[RelFAQ]] exploring questions and issues about the use of the HTML4 'rel', 'rev' attributes and linktypes in general.

== Introduction ==
Indexing and tracking applications treat all links as endorsements, or expressions of support. This is a problem, as we need to link to those we disagree with as well, to discuss why.

== Specification ==
VoteLinks is an [[elemental-microformat|elemental microformat]], one of several [[microformats|microformat]] open standards.
We propose a set of three new values for the rev attribute of the <a> (hyperlink) tag in HTML.

The new values are "vote-for" "vote-abstain" or "vote-against", which are mutually exclusive, and represent agreement, abstention or indifference, and disagreement respectively.

A link without an explicit vote 'rev' value is deemed to have value "vote-for" or "vote-abstain", depending on the application.

Additional human-readable commentary can be added using the existing 'title' attribute, which most browsers show as a rollover.

Examples:
<pre><nowiki>
<a rev="vote-for" href="http://ragingcow.blogspot.com"
title="neat spoof">Raging Cow</a>
<a rev="vote-against" href="http://ragingcow.com"
title="nasty corn syrup drink">Raging Cow</a>
</nowiki></pre>

=== Deprecated: Using 'rel' for VoteLinks ===
A previous draft of the specification used the 'rel' value instead of the 'rev' attribute. Analysis and feedback has demonstrated this to have been inappropriate use of the 'rel' attribute, when the 'rev' attribute was much more important. See the [[RelFAQ]] for more details.

Implementations MAY support links with the VoteLinks values in the 'rel' attribute for backward compatibility with any existing VoteLinks content.

Authors MUST NOT use 'rel' for VoteLinks values.

== XMDP profile ==
<pre><nowiki>
<dl class="profile">
<dt id="rev">rev</dt>
<dd><p><a rel="help" href="http://www.w3.org/TR/html401/struct/links.html#adef-rev">
HTML4 definition of the 'rev' attribute.</a>
Here are some additional values.</p>
<dl>
<dt id="vote-for">vote-for</dt>
<dd>Indicates agreement with or recommendation for the referred resource.</dd>
<dt id="vote-abstain">vote-abstain</dt>
<dd>Indicates abstention or indifference for the referred resource.</dd>
<dt id="vote-against">vote-against</dt>
<dd>Indicates disagreement with or recommendation against the referred resource.</dd>
</dl>
</dd>
</dl>
</nowiki></pre>

== Implementations ==
This section is '''informative'''.

* [http://moloko.itc.it/paoloblog/ Paolo Massa] created [http://moloko.itc.it/paoloblog/semantic_links/ SemanticLinks], a small Firefox extension that shows vote-for, vote-against links information. (Note the download links for SemanticLinks have been removed by the author.)

== Normative References ==
* [http://gmpg.org/xmdp/ XMDP]

== Related Work ==
* [[xoxo]]
* [http://gmpg.org/xfn/ XFN]
* [http://developers.technorati.com/wiki/attentionxml Attention.xml]
* [[rellicense]]
* [[reltag]]
* [[relnofollow]]

== FAQ ==
* See [[votelinks-faq]] and the broader [[rel-faq]].
* See also [[votelinks-issues]] for issues which have been raised with the votelinks [[microformat]].

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rel-tag

2005-12-13T02:29:34Z

Qolyan:

= rel="tag" =
__TOC__

== Draft Specification 2005-01-10 ==
=== Editor/Author ===
[http://tantek.com/ Tantek Çelik]

=== Concept ===
[http://powazek.com/ Derek Powazek]
[http://epeus.blogspot.com/ Kevin Marks]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

== Abstract ==
[[Rel-Tag]] is one of several [[MicroFormats]]. By adding <code>rel="tag"</code> to a hyperlink, a page indicates that the destination of that hyperlink is an author-designated "tag" (or keyword/subject) of the current page. Note that a tag may just refer to a major portion of the current page (i.e. a blog post). e.g. by placing this link on a page,

<pre><nowiki><a href="http://technorati.com/tag/tech" rel="tag">tech</a></nowiki></pre>

the author indicates that the page (or some portion of the page) has the tag "tech".

The linked page SHOULD exist, and it is the linked page, rather than the link text that defines the tag.

== Scope ==
rel="tag" is specifically designed for "tagging" content, typically web pages (or portions thereof, like blog posts).

rel="tag" is NOT designed for "tagging" arbitrary URLs or external content. There is demand for a general decentralized syntax for tagging URLs, and that is certainly something to think about, but this is not meant for that.

== XMDP profile ==
<pre><nowiki>
<dl class="profile">
<dt id="rel">rel</dt>
<dd><p>
<a rel="help" href="http://www.w3.org/TR/html401/struct/links.html#adef-rel">
HTML4 definition of the 'rel' attribute.</a>
Here is an additional value.</p>
<dl>
<dt id="tag">tag</dt>
<dd>Indicates that the referred resource serves as a "tag",
or keyword/subject, for the referring page.</dd>
</dl>
</dd>
</dl>
</nowiki></pre>

== Tag Spaces ==

Tags are embedded in HTTP URIs in a well-defined manner so that the tag embedded in an HTTP URI can be mechanically extracted from that URI. Specifically, the last segment of the path portion of the URI contains the tag value. For example, the URI <pre><nowiki>http://www.example.com/tags/foo</nowiki></pre> contains the tag "foo".

Thus, for the purposes of comparing two HTTP URIs as tags, the last segment of the path portion should be extracted and only that value (that value of the tag) should be compared.

''Need more formal language about comparison and extraction process.''

The destination of a rel="tag" hyperlink is required to be a tag space (a place that collates or defines tags), where the last component of the URL is the tag, e.g.

<pre><nowiki>http://technorati.com/tag/tech </nowiki></pre>

is a URL for the tag "tech".

Since the only part of a tag space URL of which any structure is required is the last segment, a tag space URL can be hosted at any domain. Authors may choose to link to a tag at a particular tag space in order to provide a specific meaning. E.g. a tag for technology could link to:

<pre><nowiki> http://en.wikipedia.org/wiki/Technology </nowiki></pre>

== Encoding issues ==
Spaces can be encoded either as <code>+</code> or <code>%20</code>. Unicode characters are encoded as specified in [http://www.ietf.org/rfc/rfc3986.txt RFC 3986]. For example:

<pre><nowiki><a href="http://technorati.com/tag/Sant%C3%A9+et+bien-%C3%AAtre" rel="tag">Santé et bien-être</a> </nowiki></pre>

== Tags Are Visible Metadata ==
<code>rel="tag"</code> hyperlinks are intended to be visible links on pages and posts. This is in stark contrast to meta keywords (which were invisible and typically never revealed to readers), and thus is at least somewhat more resilient to the problems which plagued meta keywords.

Making tag hyperlinks visible has the additional benefit of making it more obvious to readers if a page is abusing tag links, and thus providing more peer pressure for better behavior. It also makes it more obvious to authors, who may not always be aware what invisible metadata is being generated on their behalf.

As a result the invisible tag link syntax variant: <code><link rel="tag" href="..." /></code> SHOULD NOT be supported by implementations.

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse rel-tag links. If you have a rel-tag implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://trac.labnotes.org/cgi-bin/trac.cgi/wiki/TagsLinks TagsLinks] Turn each tag into links that let you find related content on tagging services.
* [http://odeo.com ODEO] [http://odeo.com/blog/2005/07/adding-microformats-to-odeo.html publishes] rel-tags for user entered tags.
* [http://evdb.com EVDB] publishes rel-tags for user entered tags.
* [http://dev.wp-plugins.org/wiki/BunnysTechnoratiTags "Tag plugin for wordpress"]
* Technorati first implemented rel-tag in its [http://technorati.com/tag/ Technorati Tags] service. Technorati indexes rel-tag tags.

== References ==
=== Normative References ===
* [http://www.w3.org/TR/REC-html40/ HTML 4]
* [http://www.w3.org/TR/xhtml1/ XHTML 1]
* [http://gmpg.org/xmdp/ XMDP]
* [http://www.ietf.org/rfc/rfc3986.txt RFC 3986 specifies URL syntax]

=== Informative References ===
* [[hreview|hReview]] uses rel-tag for tags and scalar tags
* [[xfolk|xFolk]] uses rel-tag to build a distributed remote resource tagging construct
* [http://developers.technorati.com/wiki/attentionxml Attention.XML] uses rel-tag for reader tagging of pages, posts, feeds
* [[hcard|hCard]] can use rel-tag for categories
* [[hcalendar|hCalendar]] can use rel-tag for categories
* [http://technorati.com/help/tags.html Using Technorati Tags]

== Discussions ==

* See [http://www.technorati.com/cosmos/referer.html blogs discussing this page].

=== Q&A ===
* If you have any questions about rel-tag, check the [[rel-faq|rel FAQ]], and if you don't find answers, add your questions!

=== Issues ===
* Please add any issues with the specification to the separate [[rel-tag-issues|rel-tag issues]] document.

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rel-license

2005-12-13T02:29:34Z

Qolyan:

= rel="license" =

relLicense is a simple, open, format for indicating content licenses which is embedable in (X)HTML, Atom, RSS, and arbitrary XML. relLicense is one of several [[microformats|microformat]] open standards.

__TOC__

== Draft Specification 2005-02-06 ==
=== Author ===
[http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc.] (formerly of [http://microsoft.com/ Microsoft Corporation])

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

== Abstract ==

RelLicense is one of several MicroFormats. By adding <code>rel="license"</code> to a hyperlink, a page indicates that the destination of that hyperlink is license for the current page. E.g. with the following hyperlink:

<pre><nowiki>
<a href="http://creativecommons.org/licenses/by/2.0/" rel="license">cc by 2.0</a>
</nowiki></pre>

the author indicates that the page is licensed under a Creative Commons 2.0 Attribution Required license.

== Multiple Licenses ==
Multiple such rel="license" hyperlinks indicate that the page is available under any of the referred licenses. E.g. the following hyperlinks could be used to declare that a page is available under either a Creative Commons 2.0 Attribution Required license or the Apache 2.0 license:

<pre><nowiki><a href="http://creativecommons.org/licenses/by/2.0/" rel="license">cc by 2.0</a>
<a href="http://www.apache.org/licenses/LICENSE-2.0" rel="license">Apache 2.0</a></nowiki></pre>

== XMDP profile ==
<pre><nowiki>
<dl class="profile">
<dt id="rel">rel</dt>
<dd><p>
<a rel="help" href="http://www.w3.org/TR/html401/struct/links.html#adef-rel">
HTML4 definition of the 'rel' attribute.</a>
Here is an additional value.</p>
<dl>
<dt id="license">license</dt>
<dd>Indicates that the referred resource is a license for the referring page.</dd>
</dl>
</dd>
</dl>
</nowiki></pre>

== normative references ==
* [http://gmpg.org/xmdp/ XMDP]

== informative references ==
* 20040211 rel="license" first proposed in presentation [http://tantek.com/presentations/2004etech/realworldsemanticspres.html real world semantics] at 2004 O'Reilly Emerging Technologies Conference, San Diego, CA, USA.
* 20040225 [http://tantek.com/log/2004/02.html#d25t1805 Thorough discussion of rel="license"] including advantages and presentation possibilities.
* [http://creativecommons.org/licenses/by/2.0/ Creative Commons 2.0 By (Attribution Required) license]
* [http://www.apache.org/licenses/LICENSE-2.0 Apache 2.0 license]
* Contributed from http://developers.technorati.com/wiki/RelLicense

== see also ==
* See [[rellicense-issues]] for issues which have been raised with this [[microformat]].

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hcalendar

2005-12-13T02:29:33Z

Qolyan:

= hCalendar =

hCalendar is a simple open, distributed calendaring and events format, based on the iCalendar standard ([http://www.ietf.org/rfc/rfc2445.txt RFC2445]), suitable for embedding in (X)HTML, Atom, RSS, and arbitrary XML. hCalendar is one of several open [[microformats|microformat]] standards.

__TOC__

== Draft Specification ==

=== Editor ===
[http://tantek.com/ Tantek Çelik] ([http://technorati.com Technorati, Inc])

=== Authors ===
* [http://tantek.com/ Tantek Çelik], [http://technorati.com Technorati, Inc]
* [http://suda.co.uk/ Brian Suda]

=== Copyright ===
{{MicroFormatCopyrightStatement2004}}

=== Patents ===
{{MicroFormatPatentStatement}}

=== Inspiration and Acknowledgments ===
Thanks to:
* Adam Bosworth for leading the [http://wiki.oreillynet.com/foocamp04/index.cgi?HTMLForCalendars FOO Camp 2004 HTML For Calendars presentation] which brought together a critical mass of interested parties.

== Introduction ==
The iCalendar standard ([http://www.ietf.org/rfc/rfc2445.txt RFC2445]), has been broadly interoperably implemented (e.g. Apple's "iCal" application built into MacOSX).

In addition, bloggers often discuss events on their blogs -- upcoming events, writeups of past events, etc. With just a tad bit of structure, bloggers can discuss events in their blog(s) in such a way that spiders and other aggregators can retrieve such events, automatically convert them to iCalendar, and use them in any iCalendar application or service.

This specification introduces the '''hCalendar''' format, which is a 1:1 representation of the aforementioned iCalendar standard, in semantic XHTML. Bloggers can both embed hCalendar events directly in their web pages, and style them with CSS to make them appear as desired. In addition, hCalendar enables applications to retrieve information about such events directly from web pages without having to reference a separate file.

== Semantic XHTML Design Principles ==

{{semantic-xhtml-design-principles}}

== Format ==

=== In General ===

The iCalendar standard ([http://www.ietf.org/rfc/rfc2445.txt RFC2445]) forms the basis of hCalendar.

Note: the editor and authors of this specification are tracking the [http://lists.osafoundation.org/pipermail/ietf-calsify/ "iCal-Basic" effort] and intend to base the core hCalendar profile on iCal-Basic. See references for a link to the current draft.

The basic format of hCalendar is to use iCalendar object/property names in lower-case for class names, and to map the nesting of iCalendar objects directly into nested XHTML.

=== More Semantic Equivalents ===

However, for some properties there is a more semantic equivalent, and therefore they get special treatment, e.g.:
* <code>URL</code> in iCalendar becomes <code><a class="url" href="...">...</a></code> inside the element with <code>class="vevent"</code> in hCalendar.
* <code>ATTENDEE</code> in iCalendar may in hCalendar be represented by an [[hcard]].

=== Singular vs. Plural Properties ===

For properties which are singular (e.g. "N" and "FN" from vCard), the first descendant element with that class should take effect, any others being ignored.

For properties which can be plural (e.g. "TEL" from vCard), each class instance should create a instance of that property. Plural properties with subtypes (e.g. TEL with WORK, HOME, CELL from vCard) can be optimized to share a common element for the property itself, with each instance of subtype being an appropriately classed descendant of the property element.

=== Human vs. Machine readable ===
If an <code><abbr></code> element is used for a property, then the '<code>title</code>' attribute of the <code><abbr></code> element is the value of the property, instead of the contents of the element, which instead provide a human presentable version of the value. This specification recommends that such <code><abbr></code> elements be used for the following iCalendar properties:
* DTSTART, DTEND, DURATION, RDATE, RRULE

== Example ==

Here is a sample event in an iCalendar:
<pre><nowiki>
BEGIN:VCALENDAR
PRODID:-//XYZproduct//EN
VERSION:2.0
BEGIN:VEVENT
URL:http://www.web2con.com/
DTSTART:20051005
DTEND:20051008
SUMMARY:Web 2.0 Conference
LOCATION:Argent Hotel\, San Francisco\, CA
END:VEVENT
END:VCALENDAR
</nowiki></pre>
and an equivalent event in hCalendar format with various elements optimized appropriately. See [[hcalendar-example1-steps]] for the derivation.

<pre><nowiki>
<span class="vevent">
<a class="url" href="http://www.web2con.com/">
<span class="summary">Web 2.0 Conference</span>:
<abbr class="dtstart" title="2005-10-05">October 5</abbr>-
<abbr class="dtend" title="2005-10-08">7</abbr>,
at the <span class="location">Argent Hotel, San Francisco, CA</span>
</a>
</span>
</nowiki></pre>
which could be displayed as:

[http://www.web2con.com/ Web 2.0 Conference: October 5-7, at the Argent Hotel, San Francisco, CA]

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 <span class="vcalendar"> element is optional, and is 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 (required by iCalendar) are not very human friendly. In addition, the year is often understood implicitly by humans from the context. Thus <code><abbr></code> elements are used to simultaneously provide a human friendly date and/or time in the visible contents of the element, while placing the respective machine parsable comprehensive ISO8601 datetime in the 'title' attribute.
The notation YYYY-MM-DD should be used for better readability.

Note 5: The difference between the DTEND ISO8601 date (2005-10-08) and the human readable date (7) is NOT a mistake. [http://lists.osafoundation.org/pipermail/ietf-calsify/2005-September/000769.html DTEND is exclusive], meaning, that the event ends just before the DTEND. Thus for events which start on one day and end on another day, the DTEND date must be specified as the day after the day that a human would say is the last day of the event.

See [[hcalendar-examples]] for more hCalendar examples

== Examples in the wild ==
This section is '''informative'''.

The following sites have implemented hCalendar, and thus are a great place to start for anyone looking for examples "in the wild" to try parsing, indexing, organizing etc. If events on your pages are marked up with hCalendar, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

* [http://www.pehuen.org/node/494 Elecciones 2005 Chile] - the first spanish language hCalendar event I've found in the wild.
* [http://www.codewitch.org/it/2005/11/17/no-creative-commons-no-party/ Giocolando » No Creative Commons? No Party!] is marked up with hCalendar
* [http://www.cmprofessionals.org/events/calendar.html CM Pros Events Calendar] by Bob Doyle, specifically check out the embedded iframe in [http://www.cmsreview.com/Resources/EventsListing.html?CSSURL=http://www.cmsreview.com/css/EventsListing.CMPros.css brief form] or as [http://www.cmsreview.com/Resources/EventsListing.html?AttributeFilter=&OrganizationFilter=&CSSURL=http://www.cmsreview.com/css/EventsListing.CMPros.css&TargetMS=1131142435000&TargetDate=11/4/2005&FilterType=&hideDatesFlag=False&FullListings=Full full content].
* [http://www.midgard-project.org/community/events/ Midgard CMS Event calendar] - as [http://bergie.iki.fi/blog/new-event-calendar-for-midcom.html blogged by Henri Bergius]
* [http://www.iowamilitaryveteransband.com/schedule/ Iowa Military Veterans Band Schedule] - hCalendar markup [http://weblog.randomchaos.com/archive/2005/10/24/Microformats/ added by Scott Reynen]
* [http://www.funfairgames.net/weblog/posts/00000011.html Upcoming events on Jason A.R. Moody Amusements Weblog] posted by Jason Moody on 15 Oct 2005. [http://www.funfairgames.net/weblog/index.html His weblog] in general has hCalendar events posted inside the blog posts.
* [http://tantek.com/microformats/2005/web2/program.html Web 2.0 Conference schedule page marked up with hCalendar]
* [http://ifreebusy.com/ ifreebusy.com] will display freebusy information using hCalendar. See this [http://ifreebusy.com/neiljensen/freebusy/ example].
* [http://we05.com/ Web Essentials 05] has marked up their [http://we05.com/program.cfm program schedule table with hCalendar], using the 'axis' and 'headers' attributes.
* [http://www.bokle.de/ s'Bokle] is a German music pub. Their events calendar has been marked up with hCalendar.
* [http://www.asdvbonaparte.nl/ ASDV Bonaparte] is a Dutch debating society. Their events calendar has been marked up with the hCalendar conventions.
* [http://www.thisiscmon.com/ C'MON] is a rock band from Canada, and their [http://www.thisiscmon.com/shows/ tour dates] have been marked up by [http://www.d2digitalmedia.com/ Ray Dickman] with hCalendar.
* [http://chocnvodka.blogware.com/blog Suw Charman] has marked up [http://suw.org.uk/archives/category/events/ her events] with hCalendar.
* [http://www.blogbusinesssummit.com/ Blog Business Summit] has published their [http://www.blogbusinesssummit.com/details.htm event details] marked up with hCalendar.
* [http://evdb.com EVDB], the Events and Venues database, publishes all events with hCalendar and venues with [[hcard|hCard]]. Took them only 15 minutes to implement both!
* [http://upcoming.org Upcoming.org] publishes all events and lists of events with hCalendar. Took them only an hour to add hCalendar support to the site.
* The [http://laughingsquid.com/squidlist/calendar/ Laughing Squid Calendar] events, [http://laughingsquid.com/squidlist/calendar/9949/2005/5/9 e.g. this party], now supports hCalendar.
* [http://paulschreiber.com/ Paul] Schreiber's [http://concerts.shrub.ca/ Sunnyvale House Concerts] site publishes hCalendar event information for upcoming concerts. In addition the [http://concerts.shrub.ca/shows Past Shows] page contains hCalendar events for all past concerts.
* [http://paulschreiber.com/ Paul] Schreiber's [http://iceoasis.shrub.ca/ unofficial schedule site] publishes hCalendar information for upcoming hockey games at [http://www.iceoasis.com/ Ice Oasis]
* [http://www.complexspiral.com/ Complex Spiral Consulting], both in the "Events" box on left side, and the separate [http://www.complexspiral.com/events/ Events page].
* [http://tantek.com/log Tantek's Thoughts], specifically the "Events" roll in the right-most column.
* [http://suda.co.uk/projects/holidays/ Lesser Known Holidays], a list of holidays on [http://suda.co.uk suda.co.uk] that can be imported via iCal and hCal so you can compare actual transformation versus intended.
* [http://norman.walsh.name/2005/itinerary/ Norm Walsh's travel schedule] use hCalendar as well as GRDDL.
* [http://www.policyawareweb.org/2005/ftf2/paw-mtg Policy Aware Web (PAW) Project Meeting] uses hCalendar to record date-related decisions, and uses a vtodo microformat to record action items.
* The [http://www.kiez-ev.de/ Kiez] is a small cinema and has published its [http://www.kiez-ev.de/programm.htm program] marked up with hCalendar.
* The [http://lufgi4.informatik.rwth-aachen.de Laboratory for Dependable Distributed Systems] publishes it's [http://lufgi4.informatik.rwth-aachen.de/cfps list of notable CfPs on dependability and security] with hCalendar-todo elements.
* The [http://laughingsquid.com/laughing-squid-10th-anniversary-party/ Laughing Squid 10th Anniversary Party] has an hcalendar page.

== Implementations ==
This section is '''informative'''.

The following implementations have been developed which either generate or parse hCalendars. If you have an hCalendar implementation, feel free to add it to the top of this list. Once the list grows too big, we'll make a separate wiki page.

=== Generation ===
* [http://www.midgard-project.org/documentation/net-nemein-calendar/ Midgard CMS - net.nemein.calendar] - as [http://bergie.iki.fi/blog/new-event-calendar-for-midcom.html blogged by Henri Bergius]
* [http://www.decafbad.com/blog/2005/06/08/greasemonkey_magic magic_hcalendar Greasemonkey user script by Les Orchard] - allows easy form entry of an event into any textarea, e.g. into a blog post text area.
* [http://microformats.org/code/hcalendar/creator microformats.org hCalendar creator]
* [http://hybernaut.com/upcoming-hcal Drupal Upcoming.org syndication module emits hCalendar]
* [http://theryanking.com/ Ryan King] has an [http://theryanking.com/microformats/hcalendar-creator.html hCalendar creator].

=== Conversion and consumption ===
* [http://virtuelvis.com/archives/2005/11/learn-to-love-microformats simple hCalendar parser] by [http://virtuelvis.com/ Arve Bersvendsen]
* [http://george.hotelling.net/90percent/ George] has built a [http://george.hotelling.net/90percent/geekery/greasemonkey_and_microformats.php Greasemonkey user script that detects hCalendar events and allows users to easily add them to their calendar application(s)].
* [http://blogmatrix.blogmatrix.com/ David Janes] has produced a [[Greasemonkey]] [http://www.blogmatrix.com/include/microformat-find.user.js script] that finds many microformat elements, including hCalendar events, and [http://blog.davidjanes.com/mtarchives/2005_08.html#003379 provides a popup menu of actions]. The hCalendar to vCalendar conversion is done internally within the script. ''This does not work with FireFox 1.5+/GreaseMonkey 0.6.4+.''
* [http://suda.co.uk/projects/X2V/ X2V] parses hCalendar and produces a .ics (iCalendar) stream. Note: needs to be updated to track changes in the specification as they occur.
* [http://dev.w3.org/cvsweb/2001/palmagent/ palmagent] by [[User:DanC]] includes toICal.xsl and test materials; it works much like xhtml2vcal.xsl in X2V. See also: [http://www.w3.org/2002/12/cal/ RDF Calendar workspace] with icalendar test materials.
* [http://web.mit.edu/glasser/www/JSCalendar/ JSCalendar] parses hCalendar and produces a displayable HTML table/CSS-based calendar.

Investigation:
* [http://wiki.mozilla.org/Calendar_Talk:Lightning#hCalendar_publish_and_subscribe_support Mozilla Calendar / Lightning / Sunbird hCalendar support discussion]

== References ==
=== Normative References ===
* [http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 SE]
* [[hcard|hCard]]
* [http://www.ietf.org/rfc/rfc2445.txt iCalendar RFC2445]

=== Informative References ===
* [http://w3.org/TR/REC-CSS1 CSS1]
* [http://tantek.com/log/2004/09.html#hcalendar hCalendar term introduced and defined on the Web, 20040930]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?HTMLForCalendars FOO Camp 2004 HTML For Calendars presentation, 20040911]
* [http://wiki.oreillynet.com/foocamp04/index.cgi?SimpleSemanticFormats FOO Camp 2004 Simple Semantic Formats presentation, 20040910]
* [http://www.ietf.org/internet-drafts/draft-royer-ical-basic-02.txt iCal-Basic draft 02]
* Contributed from http://developers.technorati.com/wiki/hCalendar
* [http://www.w3.org/TR/xhtml11 XHTML 1.1]

==== Related ====
* [[icalendar-implementations|iCalendar implementations]]
* [http://lists.osafoundation.org/pipermail/ietf-calsify/ IETF-calsify archives]
* [http://www.livejournal.com/users/jwz/444651.html jwz - Hula] (required reading)
* [http://www.jwz.org/doc/groupware.html Groupware Bad by Jamie Zawinski] crystalizes the reason for hCalendar ('''emphasis''' added):
<blockquote>"Right now people can do that by publishing .ics files, but it's not trivial to do so, and it's work on the part of other people to look at them. '''If it's not HTML hanging off our friend's home page that can be viewed in any browser on a public terminal in a library, the bar to entry is too high and it's useless.'''"</blockquote>

* [http://muddybranch.thejkgroup.com/ Jason Klemow's blog]
* [http://www.softwarestudio.org/iCal/2445Issues.html RFC2445 Issues List]
* [http://ietf.webdav.org/calsify/ CALSIFY WG Links And Resources]

=== Similar Work ===
* [[XOXO]]

== Discussions ==

This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. There is a separate document where we are keeping our brainstorms and other explorations relating to hCalendar:

* [[hcalendar-brainstorming]]

* See also [http://www.technorati.com/cosmos/referer.html blogs discussing this page].

=== Q&A ===
* If you have any questions about hCalendar, check the [[hcalendar-faq]], and if you don't find answers, add your questions!

=== Issues ===
* Please add any issues with the specification to the separate [[hcalendar-issues]] document.

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