class RDF::RDFa::Format
RDFa
format specification.
@example Obtaining an RDFa
format class
RDF::Format.for(:rdfa) #=> RDF::RDFa::Format RDF::Format.for("etc/doap.html") RDF::Format.for(file_name: "etc/doap.html") RDF::Format.for(file_extension: "html") RDF::Format.for(content_type: "text/html") RDF::Format.for(content_type: "application/xhtml+xml")
@example Obtaining serialization format MIME types
RDF::Format.content_types #=> {"text/html" => [RDF::RDFa::Format]}
@example Obtaining serialization format file extension mappings
RDF::Format.file_extensions #=> {xhtml: "application/xhtml+xml"}
Public Class Methods
detect(sample)
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Sample detection to see if it matches RDFa
(not RDF/XML or Microdata)
Use a text sample to detect the format of an input file. Sub-classes implement a matcher sufficient to detect probably format matches, including disambiguating between other similar formats.
@param [String] sample Beginning several bytes (~ 1K) of input. @return [Boolean]
# File lib/rdf/rdfa/format.rb, line 38 def self.detect(sample) (sample.match(/<[^>]*(about|resource|prefix|typeof|property|vocab)\s*="[^>]*>/m) || sample.match(/<[^>]*DOCTYPE\s+html[^>]*>.*xmlns:/im) ) && !sample.match(/<(\w+:)?(RDF)/) end
symbols()
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# File lib/rdf/rdfa/format.rb, line 44 def self.symbols [:rdfa, :lite, :html, :xhtml, :svg] end