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Updated: 2017-06-22T06:05Z

In computing, a CURIE (or Compact URI) defines a generic, abbreviated syntax for expressing Uniform Resource Identifiers (URIs). It is an abbreviated URI expressed in a compact syntax, and may be found in both XML and non-XML grammars. A CURIE may be considered a datatype.

An example of CURIE syntax: [isbn:0393315703]

The square brackets may be used to prevent ambiguities between CURIEs and regular URIs, yielding so-called safe CURIEs.

QNames (the namespace prefixes used in XML) often are used as a CURIE, and may be considered a type of CURIE. CURIEs, as defined by the W3C, will be better defined and may include checking. Unlike QNames, the part of a CURIE after the colon does not need to conform to the rules for XML element names.

The first W3C Working Draft of CURIE syntax was released 7 March 2007.[1]

The final recommendation was released 16 January 2009. [2]


This example is based on one from the W3C Working Draft 7 March 2007, using a QName syntax within XHTML.

<html xmlns:wikipedia="">    <head>...</head>    <body>        <p>            Find out more about <a href="[wikipedia:Biome]">biomes</a>.        </p>    </body></html>
  • The definition ("<html xmlns:wikipedia="">") is highlighted in yellow
  • The CURIE ("[wikipedia:Biome]") is highlighted in green

See also


External links

  • W3C Candidate Recommendation 16 January 2009 [1]
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