grddl

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Revision as of 10:49, 13 October 2007 by TomMorris (talk | contribs) (added votelinks and clarification regarding HTML4)
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GRDDL

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Introduction

GRDDL (pronounced "griddle") is a mechanism for Gleaning Resource Descriptions from Dialects of Languages. It is a technique for obtaining RDF data from XML documents and in particular XHTML pages. GRDDL transformations can be made for almost any dialect, including microformats.

Implementations

  • W3C GRDDL Service
  • Triplr - construct URL as http://triplr.org/rdf/example.com/page.htm

Profiles

Transformations

hCalendar
  • http://www.w3.org/2002/12/cal/glean-hcal.xsl
hCard
  • http://www.w3.org/2006/vcard/hcard2rdf.xsl
  • http://norman.walsh.name/2005/12/12/examples/hcard2rdf.xsl
vote-links
  • http://rdf.opiumfield.com/vote/votelinks.xsl

Issues

  • Is GRDDL in HTML 4.01 OK, or is it just for XHTML?
    • Surely parsers can convert valid HTML4.01 to XHTML, perhaps using HTML-Tidy, before parsing it?
      • The specification states that it is intended for XML and XHTML, but 'profile' is in the HTML4 specification. Parsers can implement Tidy or other conversion routines, but do not have to. --TomMorris 03:49, 13 Oct 2007 (PDT)
    • See mailing list post, 2007-09-27

References

Further reading

Criticisms

See also