Module: RdfContext

Defined in:
lib/rdf_context/duration.rb,
lib/rdf_context.rb,
lib/rdf_context/bnode.rb,
lib/rdf_context/graph.rb,
lib/rdf_context/triple.rb,
lib/rdf_context/parser.rb,
lib/rdf_context/uriref.rb,
lib/rdf_context/literal.rb,
lib/rdf_context/resource.rb,
lib/rdf_context/n3parser.rb,
lib/rdf_context/namespace.rb,
lib/rdf_context/exceptions.rb,
lib/rdf_context/term_utils.rb,
lib/rdf_context/rdfaparser.rb,
lib/rdf_context/rdfxmlparser.rb,
lib/rdf_context/quoted_graph.rb,
lib/rdf_context/aggregate_graph.rb,
lib/rdf_context/store/list_store.rb,
lib/rdf_context/conjunctive_graph.rb,
lib/rdf_context/store/memory_store.rb,
lib/rdf_context/store/sqlite3_store.rb,
lib/rdf_context/store/abstract_store.rb,
lib/rdf_context/store/abstract_sql_store.rb,
lib/rdf_context/serializer/nt_serializer.rb,
lib/rdf_context/serializer/xml_serializer.rb,
lib/rdf_context/store/active_record_store.rb,
lib/rdf_context/serializer/turtle_serializer.rb,
lib/rdf_context/serializer/abstract_serializer.rb,
lib/rdf_context/serializer/recursive_serializer.rb

Overview

An XSD duration

Defined Under Namespace

Modules: TermUtils Classes: AbstractSQLStore, AbstractSerializer, AbstractStore, ActiveRecordStore, AggregateGraph, BNode, BNodeException, ConjunctiveGraph, Duration, Graph, GraphException, InvalidNode, InvalidPredicate, ListStore, Literal, MemoryStore, N3Parser, NTSerializer, Namespace, Parser, ParserException, QuotedGraph, RdfException, RdfXmlParser, RdfaParser, ReadOnlyGraphException, RecursiveSerializer, Resource, SQLite3Store, SparqlException, StoreException, Triple, TurtleSerializer, TypeError, URIRef, XmlSerializer

Constant Summary

VERSION =

Version in parent directory

File.read(File.join(File.dirname(__FILE__), "..", "VERSION")).chop
alternate
NC_REGEXP =
Regexp.new(
%{^
  (?!\\\\u0301)             # ́ is a non-spacing acute accent.
                            # It is legal within an XML Name, but not as the first character.
  (  [a-zA-Z_]
   | \\\\u[0-9a-fA-F]
  )
  (  [0-9a-zA-Z_\.-]
   | \\\\u([0-9a-fA-F]{4})
  )*
$},
Regexp::EXTENDED)
LITERAL_PLAIN =
/^"((?:\\"|[^"])*)"/.freeze
LITERAL_WITH_LANGUAGE =
/^"((?:\\"|[^"])*)"@([a-z]+[\-A-Za-z0-9]*)/.freeze
LITERAL_WITH_DATATYPE =
/^"((?:\\"|[^"])*)"\^\^<([^>]+)>/.freeze
RDF_TYPE =
URIRef.new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type")
XML_LITERAL =
Literal::Encoding.xmlliteral
DC_NS =
Namespace.new("http://purl.org/dc/terms/", "dc")
OWL_NS =
Namespace.new("http://www.w3.org/2002/07/owl#", "owl")
LOG_NS =
Namespace.new("http://www.w3.org/2000/10/swap/log#", "log")
PTR_NS =
Namespace.new("http://www.w3.org/2009/pointers#", "ptr")
RDF_NS =
Namespace.new("http://www.w3.org/1999/02/22-rdf-syntax-ns#", "rdf")
RDFA_NS =
Namespace.new("http://www.w3.org/ns/rdfa#", "rdfa")
RDFS_NS =
Namespace.new("http://www.w3.org/2000/01/rdf-schema#", "rdfs")
XHV_NS =
Namespace.new("http://www.w3.org/1999/xhtml/vocab#", "xhv")
XML_NS =
Namespace.new("http://www.w3.org/XML/1998/namespace", "xml")
XSD_NS =
Namespace.new("http://www.w3.org/2001/XMLSchema#", "xsd")
XSI_NS =
Namespace.new("http://www.w3.org/2001/XMLSchema-instance", "xsi")
WELLKNOWN_NAMESPACES =
[DC_NS, OWL_NS, LOG_NS, RDF_NS, RDFA_NS, RDFS_NS, XHV_NS, XML_NS, XSD_NS, XSI_NS]
XH_MAPPING =
{"" => Namespace.new("http://www.w3.org/1999/xhtml/vocab\#", nil)}

Class Method Summary (collapse)

Instance Method Summary (collapse)

Class Method Details

+ (Object) debug=(value)



118
# File 'lib/rdf_context.rb', line 118

def self.debug=(value); @debug = value; end

+ (Boolean) debug?

Control debug output.

Returns:

  • (Boolean)


117
# File 'lib/rdf_context.rb', line 117

def self.debug?; @debug; end

Instance Method Details

- (Object) bnode_permutations(bn_source, bn_other) (protected)

Permutations of two BNode lists

Take source keys and run permutations mapping to other keys, if the permutation maps to the same counts for each



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# File 'lib/rdf_context/graph.rb', line 573

def bnode_permutations(bn_source, bn_other)
  puts "compare #{bn_source.inspect}\n   with #{bn_other.inspect}" if ::RdfContext::debug?

  source_keys = bn_source.keys
  other_keys = bn_other.keys
  values = bn_source.values.uniq

  # Break key lists into groups based on sharing equivalent usage counts
  case values.length
  when 0
    {}
  when 1
    # All keys have equivalent counts, yield permutations
    if source_keys.length == 1
      puts "yield #{{source_keys.first => other_keys.first}.inspect}" if ::RdfContext::debug?
      yield({source_keys.first => other_keys.first})
    else
      (0..(source_keys.length-1)).to_a.permute do |indicies|
        puts "indicies #{indicies.inspect}" if ::RdfContext::debug?
        ok = other_keys.dup
        map = indicies.inject({}) { |hash, i| hash[source_keys[i]] = ok.shift; hash}
        puts "yield #{map.inspect}" if ::RdfContext::debug?
        yield(map)
      end
    end
  else
    # Break bnodes into 2 arrays sharing a common usage count and permute each separately
    max = values.max
    bn_source_min = bn_source.clone
    bn_other_min = bn_other.clone
    bn_source_max = {}
    bn_other_max = {}
    bn_source.each_pair do |bn, v|
      bn_source_max[bn] = bn_source_min.delete(bn) if v == max
    end
    bn_other.each_pair do |bn, v|
      bn_other_max[bn] = bn_other_min.delete(bn) if v == max
    end

    puts "yield permutations of multiple with max #{bn_source_max.inspect}\n  and #{bn_other_max.inspect}" if ::RdfContext::debug?
    # Yield for each permutation of max joined with permutations of min
    bnode_permutations(bn_source_max, bn_other_max) do |bn_perm_max|
      bnode_permutations(bn_source_min, bn_other_min) do |bn_perm_min|
        yield bn_perm_max.merge(bn_perm_min)
      end
    end
  end
end