Structured Data Linter

Extract and validate embedded RDF markup in HTML and other formats.

DESCRIPTION

The Structured Data Linter digests structured data, in the form of HTML marked-up with RDFa or Microdata, or other RDF technologies supported in [Linked Data][linkeddata].

The linter is part of the structured-data.org, and runs at linter.structured-data.org

• Includes N-Triples support using RDF.rb.
• Includes RDF/XML support using the RDF::RDFXML gem.
• Includes Turtle and Notation3 support using the RDF::N3 gem.
• Includes RDFa support using the RDF::RDFa gem.
• Includes RDF/JSON support using the [RDF::JSON][] gem.
• Includes TriX support using the RDF::TriX gem.
• Includes Microdata support using the RDF::Microdata gem.
• Includes JSON-LD support using the JSON::LD gem.

Output is expressed as HTML+RDFa in a Snippet format.

Code layout

This application is represented as a Sinatra application implemented in Ruby.

config.ru             -- [Rack][] configuration file, to start application
lib
  rdf
    linter
      parser.rb         -- Parse and transform input to RDFa.
      rdfa_template.rb  -- RDFa output templates in [Haml][]
      snippets          -- Snippet templates
      views             -- Templates for view generation in [Erubis][]
      vocab_defs.rb     -- Vocabulary definitions
      writer.rb         -- Sub-class of [RDFa][] writer for generating snippet output.
    linter.rb         -- Controller defining HTTP endpoints
public
spec                  -- Tests
  test_data           -- Test Data

Dependencies

• Haml (>= 3.0.0)
• Erubis (>= 2.6.6)
• RDF.rb (>= 0.3.3)
• Linked Data (>= 0.3.2)
• Linked Data for Rack (>= 0.3.1)
• Linked Data for Sinatra (>= 0.3.1)
• Nokogiri (>= 1.4.4)
• RDF::JSON (>= 0.3.1)
• RDF::Microdata (>= 0.1.0)
• RDF::N3 (>= 0.3.3)
• RDF::RDFa (>= 0.3.3)
• RDF::RDFXML (>= 0.3.3)
• RDF::TriX (>= 0.3.1)
• JSON::LD (>= 0.0.4)

AUTHORS

• Gregg Kellogg - http://kellogg-assoc.com/
• Stéphane Corlosquet

Setup notes

• public/.htaccess

• Bundle installed using:

  bundle install --path vendor/bundler

• Start the server with:

  bundle exec shotgun -p 3000 config.ru

FEEDBACK

• http://groups.google.com/group/structured-data-dev
• https://github.com/structured-data/linter/issues

Contributing

• Do your best to adhere to the existing coding conventions and idioms.
• Don't use hard tabs, and don't leave trailing whitespace on any line.
• Do document every method you add using [YARD][] annotations. Read the [tutorial][YARD-GS] or just look at the existing code for examples.
• Don't touch the .gemspec, VERSION or AUTHORS files. If you need to change them, do so on your private branch only.
• Do feel free to add yourself to the CREDITS file and the corresponding list in the the README. Alphabetical order applies.
• Do note that in order for us to merge any non-trivial changes (as a rule of thumb, additions larger than about 15 lines of code), we need an explicit [public domain dedication][PDD] on record from you.

License

This is free and unencumbered public domain software. For more information, see http://unlicense.org/ or the accompanying {file:UNLICENSE} file.