with geo information are yummy hack fodder ...
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marking up data in a predictable manner is a great way to allow developers to play with your information. (Chris Heilmann, Yahoo Developer Network)
A Microformat (sometimes abbreviated μF or uF) is a way of adding simple semantic meaning to human-readable content which is otherwise, from a machine's point of view, just plain text. They allow data items such as events, contact details or locations, on HTML (or XHTML) web pages, to be meaningfully detected and the information in them to be extracted by software, and indexed, searched for, saved or cross-referenced, so that it can be reused or combined.
More technically, they are items of semantic mark up, using just standard (X)HTML with a set of common class-names and rel-attributes (though the latter are not used on MediaWiki). They are open and available, freely, for anyone to use.
For example, 52.48,-1.89 is a pair of numbers which may refer to anything; but in some contexts could be understood to be a set of geographic coordinates. By wrapping them in spans (or other HTML elements) with specific class names (in this case part of the geo microformat specification):
52.48,-1.89 ... machines can be told exactly what each value represents, and can then index it, look it up on a map, export it to a GPS device, or whatever.
Other microformats allow the encoding and extraction of events, biographical/ contact information, social relationships, species names, product details, reviews, audio recordings, and so on. More are being developed.
Version 3 of the Firefox browser includes, and a future version of Internet Explorer may include, native support for microformats.
Page content marked up with microformats may be extracted using various browser plugins and parsers.
(and, more generally, in MediaWiki)?
It is easier to apply them to templates rather than individual pages. That also means that individual authors need not know the intricacies of microformat mark-up, only how to use the relevant template. Many of the templates on Wikipedia require minimal changes to use microformats to present their existing content with added meaning. While the functionality may already exist in the Wikipedia template, adding microformat mark-up will make that functionality available to people using the same tools they use when visiting other sites.
Use {{User Microformats}} to show your participation in this project.
Put {{WikiProject Microformats}} on the talk page of relevant articles.
Consider adding an hCard to your signature, like this:
[[User:Pigsonthewing|Pigsonthewing]]; [[User talk:Pigsonthewing|talk]] If your user name has more than one word, and is not a given-name+surname pair, use class="duhoc-kn fn nickname".
{{URL}} – input/ display / link = www.example.com / http://www.example.com/ / http://www.example.com/This wraps the displayed URL with class="duhoc-kn url".
{{UF-coord-th}} – table header for columns of coordinates using {{Coord}}.{{Kml}} – links to KML services for pages with multiple occurrences of Geo.{{UF-timeline}} – links to siatec.net/timeline which generates a timeline of hCalendar microformats on the linking page{{UF--geo-article}}{{Infobox}} and {{Navbox}} have built-in support for adding microformat classes to the templates they generate.{{Abbr}} and {{Abbrlink}} take a |class= parameter.{{UF-adr}}{{UF-audio}}{{UF-coord}} – For coordinates, use {{Coord}} with display=inline,title. Please do not be overly precise.{{UF-coord-classes}}{{UF-date-part}} – Where dates are emitted for use inside other microformat templates{{UF-date-warn}} – warning of ISO date limitation{{UF-geo}}{{UF-geo-other}} – for non-terrestrial coordinates{{UF-hcal}} – where a start date requires {{Start date}}{{UF-hcal-auto}} – where class="duhoc-kn dtstart" is hard-coded.{{UF-hcal-geo}}{{UF--geo}}{{UF--name}}{{UF--org}}{{UF--part}}{{UF--person}}{{UF--place}}{{UF--short}}{{UF-+hcal}}{{UF-hprod}}{{UF-media}}{{UF-species}}The following categories are not yet widely applied (see Emitting categories), and so under-represent the numbers concerned:
The following may be of use.
Volunteers needed!
tbody in tablesclass and rel attributes on internal (including File:) and external links class attributes in img elements. {{Listen}}/ {{Listen/core}}; {{Audio}}, {{Multi-listen item}} tbody in tables; see bugs, belowGeo (shortcut: WP:GEOUF) is for WGS84 coordinates (latitude;longitude).
Geo allows waypoints to be indexed ("find me all places within 2 km of X"), looked up on other websites, or uploaded to devices, such as GPS units.
{{Coord}} applies the Geo microformat to coordinates on Wiki ಕನ್ನಡ. It replaces the now-deprecated "coor *" family of templates.
To add 57°18′22″N 4°27′32″W / 57.30611°N 4.45889°W to the top of an article, use {{Coord}}, thus:
{{Coord|57|18|22|N|4|27|32|W|display=title}}These coordinates are in degrees, minutes, and seconds of arc.
"title" means that the coordinates will be displayed next to the article's title at the top of the page and before any other text or images.
To add 44°06′45″N 87°54′47″W / 44.1124°N 87.9130°W to the top of an article, use either
{{Coord|44.1124|N|87.9130|W|display=title}}(which does not require minutes or seconds but does require the user to specify north/ south and east/west) or
{{Coord|44.1124|-87.9130|display=title}}(in which the north and east are presumed by positive values while the south and west are negative ones) These coordinates are in decimal degrees.
Optional coordinate parameters follow the longitude and are separated by an underscore ("_"):
dim:N (viewing diameter in metres)region:R (ISO 3166-1 alpha-2 or ISO 3166-2 code)type:T (landmark or city(30,000), for example)Other optional parameters are separated by a pipe ("|"):
|display=inline (the default) to display in the body of the article only,|display=title to display at the top of the article only, or|display=inline,title to display in both places.name=X to label the place on maps (default is PAGENAME)Thus: {{Coord|44.1172|-87.9135|dim:30_region:US-WI_type:event
|display=inline,title|name=accident site}}Use |display=title (or |display=inline,title) once per article, for the subject of the article, where appropriate.
{{DEFAULTSORT}} template.{{Coord/doc}}.
See also:
See: ವರ್ಗ:Templates generating Geo
Examples:
{{Geolinks-AUS-suburbscale}}{{Coord}}, both "title" and "inline".There are three active proposals, none mutually exclusive, and all backwards-compatible, to extend the geo microformat:
class="duhoc-kn body", for representing coordinates on other planets, moons etc.; and a class for non-WSG84 schema. See, for example; Pages marked with {{Coord}} can be exported as KML (for use in Google Earth, for example) via Brian Suda's site, in this format:
The same URL can be pasted into Google Maps as a search, and will show the locations, as push-pins on a map
The template: {{Kml}} has been created for this purpose (and was immediately nominated for deletion!).
hAudio is for audio recordings; with or without audio files (we cannot currently link to audio files in hAudio, because Wikipedia editors cannot use the rel attribute; see bug 23225).
hCard is for contact details of people (both article subjects and user profiles/sigs), organisations and venues.
See Wikipedia:WikiProject Microformats/ for more.
The microformat for postal addresses and their individual components is a sub-set of hCard. See the above page for more information, or ವರ್ಗ:Templates generating ADR microformats.
{{Mf-adr}} generates an inline adr, either standalone or for placing within an existing HTML tag with class="duhoc-kn adr" via the inparamter.
{{Start date}} and {{ISO date}} emits the required ISO8601 date with class="duhoc-kn dtstart", and {{End date}} and {{ISO end date}} emit the date with class="duhoc-kn dtend" (not yet working for exclusive whole-day dates).{{Start date and years ago}} – as above{{Start-date}}, {{End-date}} family (note dashes in name) {{Start-date}}, and {{Bday}} emit the required ISO8601 date with class="duhoc-kn dtstart". bday emits the class bday for s.{{End-date}} emits the date with class="duhoc-kn dtend". Dates are adjusted +1 unit of time, where unit of time is dependent on the precision. EG: {{end-date|December 31, 1976}} would generate 1977-01-01Z, whereas {{end-date|1939}} would generate 1940. In contravention of the hCalendar spec.{{Timeline-item}} (with {{Timeline-start}} and {{Timeline-end}}) generate a definition list for a series of dated events, each being wrapped in an hCalendar microformat.{{Timeline-event}} for use in ordinary lists, etc.{{Timeline-links}} passes a page's set of hCalendar events to external timeline-generating and other hCalendar-using websites.hCalendar should not be used for years outside the range 1583–9999 CE.
hAtom is for marking feeds.
It will not be possible to use hAtom in Wikipedia until it is possible to have an address element on pages. See Wikipedia:Village_pump_(technical)#address_element.
{{Start date}} and {{ISO date}} now emit the required ISO8601 date with class="duhoc-kn updated".
hMedia is for video media.
hReview is for marking up reviews, and could be used by, for example, Template:Infobox Album.
hProduct is for marking up products.
hRecipe is for marking up recipes and, by logical extension, singular foodstuffs.
For microformat-style schemes developed elsewhere, see:
Though not formally microformats (because they have not been developed using the "microformats process", and/ or involve hidden metadata), the following are related:
See /classes
See /Species
The proposed citation microformat will be very relevant to Wikipedia, both for on-page citations and bibliographies, and for allowing people to cite Wikipedia, elsewhere. See Template talk:Cite book#Use in Bibliography and COinS in Wikipedia for work which is laying some of the groundwork for application of that microformat, once it is ready.
Citation microformats would allow the look-up of cited articles or books in libraries or shops, and the extraction of citation data for the page being voted, if it is to be cited elsewhere.
The proposed currency microformat may be useful, especially if the suggestion to include a date field for historical amounts is included., for example, on 1922 in Germany
Despite the ending of cash payments for the rest of 1922, the main cause of Germany's inability to pay, the steady depreciation of the mark, was ongoing. Towards the end of the year it assumed a disastrous rapidity. On August 1, the US Dollar still stood at 643 Marks to the Dollar and the British Pound at 2,850 Marks to the Pound. But on September 5 the dollar had already risen to 1,440 Marks and the pound to 6,525 Marks, and in December the pound was worth between 30,000 and 40,000 marks and the dollar between 7,000 and 9,000.
Currency would allow automatic conversion of amounts into other currencies ("how much is that in dollars?") or time ("how much would that be today?")
Wikitravel is using microformats, not least in Wikitravel listings
rel attributes to internal and external links, to generate, for example:or:
or a combination of both, where "xxx" is a valid microformat attribute such as "url" and "yyy" is a valid rel attribute such as "directory", "tag" or "colleague" (the latter from XFN).
tbody elements, with classes, to groups of table rows.For other issues encountered when adding microformats to Wikipedia and other pages, using Media Wiki mark-up, see [೨]
"Yahoo! Query Language" can be used to extract microformats from Wikipedia pages.
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