Class: RDF::Microdata::RdfaReader
- Inherits:
-
RDFa::Reader
- Object
- Reader
- RDFa::Reader
- RDF::Microdata::RdfaReader
- Defined in:
- vendor/bundler/ruby/3.3.0/bundler/gems/rdf-microdata-73e8bfd8e661/lib/rdf/microdata/rdfa_reader.rb
Overview
Update DOM to turn Microdata into RDFa and parse using the RDFa Reader
Constant Summary
Constants inherited from RDFa::Reader
RDFa::Reader::NC_REGEXP, RDFa::Reader::SafeCURIEorCURIEorIRI, RDFa::Reader::TERM_REGEXP, RDFa::Reader::TERMorCURIEorAbsIRI, RDFa::Reader::XHTML
Constants included from Util::Logger
Instance Attribute Summary collapse
-
#rdfa ⇒ RDF::HTML::Document
readonly
The transformed DOM using RDFa.
Attributes inherited from RDFa::Reader
#host_language, #implementation, #repository, #version
Attributes inherited from Reader
Attributes included from Enumerable
Class Method Summary collapse
Instance Method Summary collapse
-
#initialize(input = $stdin, **options) {|reader| ... } ⇒ reader
constructor
Initializes the RdfaReader instance.
Methods inherited from RDFa::Reader
#each_statement, #each_triple, #extract_script, options
Methods included from Util::Logger
#log_debug, #log_depth, #log_error, #log_fatal, #log_info, #log_recover, #log_recovering?, #log_statistics, #log_warn, #logger
Methods included from RDFa::Expansion
#copy_properties, #expand, #rule
Methods inherited from Reader
#base_uri, #canonicalize?, #close, each, #each_pg_statement, #each_statement, #each_triple, #encoding, #fail_object, #fail_predicate, #fail_subject, for, #intern?, #lineno, open, options, #prefix, #prefixes, #prefixes=, #read_statement, #read_triple, #rewind, to_sym, #to_sym, #valid?, #validate?
Methods included from Util::Aliasing::LateBound
Methods included from Enumerable
add_entailment, #canonicalize, #canonicalize!, #dump, #each_graph, #each_object, #each_predicate, #each_quad, #each_statement, #each_subject, #each_term, #each_triple, #entail, #enum_graph, #enum_object, #enum_predicate, #enum_quad, #enum_statement, #enum_subject, #enum_term, #enum_triple, #graph?, #graph_names, #invalid?, #method_missing, #object?, #objects, #predicate?, #predicates, #project_graph, #quad?, #quads, #respond_to_missing?, #statement?, #statements, #subject?, #subjects, #supports?, #term?, #terms, #to_a, #to_h, #to_set, #triple?, #triples, #valid?, #validate!
Methods included from Isomorphic
#bijection_to, #isomorphic_with?
Methods included from Countable
Methods included from Readable
Constructor Details
#initialize(input = $stdin, **options) {|reader| ... } ⇒ reader
Initializes the RdfaReader instance.
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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-microdata-73e8bfd8e661/lib/rdf/microdata/rdfa_reader.rb', line 31 def initialize(input = $stdin, **, &block) @options = log_debug('', "using RDFa transformation reader") input = case input when ::Nokogiri::XML::Document, ::Nokogiri::HTML::Document then input else # Try to detect charset from input [:encoding] ||= input.charset if input.respond_to?(:charset) # Otherwise, default is utf-8 [:encoding] ||= 'utf-8' [:encoding] = [:encoding].to_s if [:encoding] begin input = input.read if input.respond_to?(:read) ::Nokogiri::HTML5(input.force_encoding([:encoding]), max_parse_errors: 1000) rescue LoadError, NoMethodError ::Nokogiri::HTML.parse(input, base_uri.to_s, [:encoding]) end end # For all members having @itemscope input.css("[itemscope]").each do |item| # Get @itemtypes to create @type and @vocab item.attribute('itemscope').remove if item['itemtype'] # Only absolute URLs types = item.attribute('itemtype'). remove. to_s. split(/\s+/). select {|t| RDF::URI(t).absolute?} item['typeof'] = types.join(' ') unless types.empty? if vocab = types.first vocab = begin type_vocab = vocab.to_s.sub(/([\/\#])[^\/\#]*$/, '\1') Registry.new(type_vocab) if type_vocab end item['vocab'] = vocab.uri.to_s if vocab end end item['typeof'] ||= '' # Change each itemid attribute to an resource attribute with the same value if item['itemid'] id = item.attribute('itemid').remove item['resource'] = id end end # Add @resource for all itemprop values of object based on a @data value input.css("object[itemprop][data]").each do |item| item['resource'] ||= item['data'] end # Replace all @itemprop values with @property input.css("[itemprop]").each {|item| item['property'] = item.attribute('itemprop').remove} # Wrap all @itemref properties input.css("[itemref]").each do |item| item_vocab = item['vocab'] || item.ancestors.detect {|a| a.attribute('vocab')} item_vocab = item_vocab.to_s if item_vocab item.attribute('itemref').remove.to_s.split(/\s+/).each do |ref| if referenced = input.css("##{ref}") # Add @vocab to referenced using the closest ansestor having @vocab of item. # If the element with id reference has no resource attribute, add a resource attribute whose value is a NUMBER SIGN U+0023 followed by reference to the element. # If the element with id reference has no typeof attribute, add a typeof="rdfa:Pattern" attribute to the element. referenced.wrap(%(<div vocab="#{item_vocab}" resource="##{ref}" typeof="rdfa:Pattern" />)) # Add a link child element to the element that represents the item, with a rel="rdfa:copy" attribute and an href attribute whose value is a NUMBER SIGN U+0023 followed by reference link = ::Nokogiri::XML::Node.new('link', input) link['rel'] = 'rdfa:copy' link['href'] = "##{ref}" item << link end end end @rdfa = input log_debug('', "Transformed document: #{input.to_html}") = .merge( library: :nokogiri, reference_folding: true, host_language: :html5, version: :"rdfa1.1") # Rely on RDFa reader super(input, **, &block) end |
Dynamic Method Handling
This class handles dynamic methods through the method_missing method in the class RDF::Enumerable
Instance Attribute Details
#rdfa ⇒ RDF::HTML::Document (readonly)
The transformed DOM using RDFa
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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-microdata-73e8bfd8e661/lib/rdf/microdata/rdfa_reader.rb', line 9 def rdfa @rdfa end |