existing-rel-values: Difference between revisions

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(moved HTML3 rel values not appearing in HTML4 to new dropped section, tools to implementations)
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== formats ==
== formats ==
These rel values are defined formats from specifications (HTML4, microformats) are thus are <strong>recommended for general use</strong>.  Alphabetically ordered by value.
These rel values are defined formats from specifications (HTML 4, microformats) are thus are <strong>recommended for general use</strong>.  Alphabetically ordered by value.


Note: this list is incomplete, please help complete it from the following sources:
Note: this list is incomplete, please help complete it from the following sources:
* [http://www.w3.org/TR/html4/types.html#h-6.12 HTML4 link type]
* [http://www.w3.org/TR/html401/types.html#h-6.12 HTML 4 link type]
* [[xfn]] and other [[microformats]]
* [[xfn]] and other [[microformats]]


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|-
|-
|[[rel-tag|tag]]||the referenced document represents a "tag", which is like a keyword or category label, for the current document||[[rel-tag]]
|[[rel-tag|tag]]||the referenced document represents a "tag", which is like a keyword or category label, for the current document||[[rel-tag]]
|-
|[[rel-up|up]]||When the document forms part of a hierarchy, this link references the immediate parent of the current document.||[http://www.w3.org/MarkUp/html3/dochead.html HTML 3] (et al?)
|-
|[[rel-toc|toc]]||The link references a document serving as a table of contents.||[http://www.w3.org/MarkUp/html3/dochead.html HTML 3] (et al?)
|-
|-
|}
|}
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|-
|-
|[[rel-member|member]]||the referenced document represents a member of the group represented by the current document||[[group-brainstorming]]
|[[rel-member|member]]||the referenced document represents a member of the group represented by the current document||[[group-brainstorming]]
|}
== dropped ==
The following rel values were in earlier version(s) of specification(s) and it is presumed by their absence from the most recent version of the respective specification(s) that they have been deprecated or obsoleted.  Use of them could be considered a bit more standard than just POSH, although you may wish to research <em>why</em> such values were omitted from latter specifications before using them.  If you do discover the reasoning, please add a short statement or link to thereof into the appropriate place in the following table.
Sources: [http://www.w3.org/MarkUp/html3/ HTML3 (expired!)] - (has been superceded by [http://www.w3.org/MarkUp/Wilbur/ HTML 3.2] - which itself has been superceded by [http://www.w3.org/TR/REC-html40 HTML 4.0] - which itself has been updated by [http://w3.org/TR/html401 HTML 4.01], commonly referred to as "HTML 4" in this wiki and other places.)
{| border="1"
|+
! rel value !! summary !! defining specification !! why dropped
|-
|[[rel-toc|toc]]||The link references a document serving as a table of contents.||[http://www.w3.org/MarkUp/html3/dochead.html HTML 3]||unknown
|-
|[[rel-up|up]]||When the document forms part of a hierarchy, this link references the immediate parent of the current document.||[http://www.w3.org/MarkUp/html3/dochead.html HTML 3]||unknown
|-
|}
|}


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|}
|}


==Tools==
== tools ==
In addition to microformat parsers, the following make use of links marked with a "rel" value:
See [[implementations]].
* [http://www.christophm.de/software/firefox/cmSiteNavigation/ cmSiteNavigation] extension for Firefox
** Parses additional link types also.


== related ==
== related ==

Revision as of 22:55, 23 September 2007

existing rel values

formats

These rel values are defined formats from specifications (HTML 4, microformats) are thus are recommended for general use. Alphabetically ordered by value.

Note: this list is incomplete, please help complete it from the following sources:

rel value summary defining specification
alternate ... HTML4 link type
appendix ... HTML4 link type
bookmark ... HTML4 link type
chapter ... HTML4 link type
contents ... HTML4 link type
copyright ... HTML4 link type
friend the person represented by the current document considers the person represented by the refrenced document to be a friend XFN
glossary ... HTML4 link type
help ... HTML4 link type
index ... HTML4 link type
me the referenced document represents the same person as the current document XFN
home the referenced document is the homepage of the site in which the current page appears. rel-home
license the referenced document is license information for the current page. rel-license
next the next document in a navigation order HTML4 link type
prev the previous document in a navigation order HTML4 link type
section ... HTML4 link type
start ... HTML4 link type
stylesheet a style sheet for the current document HTML4 link type
subsection ... HTML4 link type
tag the referenced document represents a "tag", which is like a keyword or category label, for the current document rel-tag

brainstorming

Several rel values are being brainstormed as potential microformats and are thus listed here. If you find you have a use for such semantics in real world examples, consider trying out these values and provide feedback on the respective brainstorming page(s) with your results/experience.

Sources: group-brainstorming, ...

rel value summary proposed in
group the referenced document represents a group that the person represented by the current document belongs to group-brainstorming
member the referenced document represents a member of the group represented by the current document group-brainstorming

dropped

The following rel values were in earlier version(s) of specification(s) and it is presumed by their absence from the most recent version of the respective specification(s) that they have been deprecated or obsoleted. Use of them could be considered a bit more standard than just POSH, although you may wish to research why such values were omitted from latter specifications before using them. If you do discover the reasoning, please add a short statement or link to thereof into the appropriate place in the following table.

Sources: HTML3 (expired!) - (has been superceded by HTML 3.2 - which itself has been superceded by HTML 4.0 - which itself has been updated by HTML 4.01, commonly referred to as "HTML 4" in this wiki and other places.)

rel value summary defining specification why dropped
toc The link references a document serving as a table of contents. HTML 3 unknown
up When the document forms part of a hierarchy, this link references the immediate parent of the current document. HTML 3 unknown

POSH usage

There are numerous rel values used as POSH in the wild, their origins are not necessarily known, nor are their meanings consistent, but it may still be useful to document their existence and summarize their implied meanings/usage intent.

rel value summary origin
archive an archive document for the current blog unknown origin

tools

See implementations.

related

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