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# Attempt to load RDF::RDFa first, so that RDF::Format.for(:rdfa) is defined
begin
require 'rdf/rdfa'
rescue LoadError
# Soft error
end
module RDF::Microdata
##
# Microdata format specification.
#
# @example Obtaining a Microdata format class
# RDF::Format.for(:microdata) #=> RDF::Microdata::Format
# RDF::Format.for("etc/foaf.html")
# RDF::Format.for(:file_name => "etc/foaf.html")
# RDF::Format.for(:file_extension => "html")
# RDF::Format.for(:content_type => "text/html")
#
# @example Obtaining serialization format MIME types
# RDF::Format.content_types #=> {"text/html" => [RDF::Microdata::Format]}
#
# @see http://www.w3.org/TR/rdf-testcases/#ntriples
class Format < RDF::Format
content_encoding 'utf-8'
# Only define content type if RDFa is not available.
# The Microdata processor will be launched from there
# otherwise.
content_type 'text/html', :extension => :html unless RDF::Format.for(:rdfa)
reader { RDF::Microdata::Reader }
##
# Sample detection to see if it matches Microdata (not RDF/XML or RDFa)
#
# 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(/<[^>]*(itemprop|itemtype|itemref|itemscope|itemid)[^>]*>/m)
end
end
end
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10 entries across 10 versions & 1 rubygems