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Contents
module RDF::RDFa
##
# 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"}
#
# @see http://www.w3.org/TR/rdf-testcases/#ntriples
class Format < RDF::Format
content_encoding 'utf-8'
content_type 'text/html;q=0.5',
aliases: %w(application/xhtml+xml;q=0.7 image/svg+xml;q=0.4),
extensions: [:html, :xhtml, :svg]
reader { RDF::RDFa::Reader }
writer { RDF::RDFa::Writer }
##
# 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]
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
def self.symbols
[:rdfa, :lite, :html, :xhtml, :svg]
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems