<commit_before>module RDF
  ##
  # The base class for RDF parsers.
  #
  # @example Loading an RDF reader implementation
  #   require 'rdf/ntriples'
  #
  # @example Iterating over known RDF reader classes
  #   RDF::Reader.each { |klass| puts klass.name }
  #
  # @example Obtaining an RDF reader class
  #   RDF::Reader.for(:ntriples)     #=> RDF::NTriples::Reader
  #   RDF::Reader.for("etc/doap.nt")
  #   RDF::Reader.for(file_name:      "etc/doap.nt")
  #   RDF::Reader.for(file_extension: "nt")
  #   RDF::Reader.for(content_type:   "application/n-triples")
  #
  # @example Instantiating an RDF reader class
  #   RDF::Reader.for(:ntriples).new($stdin) { |reader| ... }
  #
  # @example Parsing RDF statements from a file
  #   RDF::Reader.open("etc/doap.nt") do |reader|
  #     reader.each_statement do |statement|
  #       puts statement.inspect
  #     end
  #   end
  #
  # @example Parsing RDF statements from a string
  #   data = StringIO.new(File.read("etc/doap.nt"))
  #   RDF::Reader.for(:ntriples).new(data) do |reader|
  #     reader.each_statement do |statement|
  #       puts statement.inspect
  #     end
  #   end
  #
  # @abstract
  # @see RDF::Format
  # @see RDF::Writer
  class Reader
    extend  ::Enumerable
    extend  RDF::Util::Aliasing::LateBound
    include RDF::Util::Logger
    include RDF::Readable
    include RDF::Enumerable # @since 0.3.0

    ##
    # Enumerates known RDF reader classes.
    #
    # @yield  [klass]
    # @yieldparam [Class] klass
    # @return [Enumerator]
    def self.each(&block)
      @@subclasses.each(&block)
    end

    ##
    # Finds an RDF reader class based on the given criteria.
    #
    # If the reader class has a defined format, use that.
    #
    # @overload for(format)
    #   Finds an RDF reader class based on a symbolic name.
    #
    #   @param  [Symbol] format
    #   @return [Class]
    #
    # @overload for(filename)
    #   Finds an RDF reader class based on a file name.
    #
    #   @param  [String] filename
    #   @return [Class]
    #
    # @overload for(options = {})
    #   Finds an RDF reader class based on various options.
    #
    #   @param  [Hash{Symbol => Object}] options
    #   @option options [String, #to_s]   :file_name      (nil)
    #   @option options [Symbol, #to_sym] :file_extension (nil)
    #   @option options [String, #to_s]   :content_type   (nil)
    #   @return [Class]
    #   @option options [String]          :sample (nil)
    #     A sample of input used for performing format detection.
    #     If we find no formats, or we find more than one, and we have a sample, we can
    #     perform format detection to find a specific format to use, in which case
    #     we pick the first one we find
    #   @return [Class]
    #   @yieldreturn [String] another way to provide a sample, allows lazy for retrieving the sample.
    #
    # @return [Class]
    def self.for(options = {}, &block)
      options = options.merge(has_reader: true) if options.is_a?(Hash)
      if format = self.format || Format.for(options, &block)
        format.reader
      end
    end

    ##
    # Retrieves the RDF serialization format class for this reader class.
    #
    # @return [Class]
    def self.format(klass = nil)
      if klass.nil?
        Format.each do |format|
          if format.reader == self
            return format
          end
        end
        nil # not found
      end
    end

    class << self
      alias_method :format_class, :format
    end

    ##
    # Parses input from the given file name or URL.
    #
    # @note A reader returned via this method may not be readable depending on the processing model of the specific reader, as the file is only open during the scope of `open`. The reader is intended to be accessed through a block.
    #
    # @example Parsing RDF statements from a file
    #   RDF::Reader.open("etc/doap.nt") do |reader|
    #     reader.each_statement do |statement|
    #       puts statement.inspect
    #     end
    #   end
    #
    # @param  [String, #to_s] filename
    # @param [Symbol] format
    # @param  [Hash{Symbol => Object}] options
    #   any additional options (see {RDF::Util::File.open_file}, {RDF::Reader#initialize} and {RDF::Format.for})
    # @yield  [reader]
    # @yieldparam  [RDF::Reader] reader
    # @yieldreturn [void] ignored
    # @raise  [RDF::FormatError] if no reader found for the specified format
    def self.open(filename, format: nil, **options, &block)
      Util::File.open_file(filename, options) do |file|
        format_options = options.dup
        format_options[:content_type] ||= file.content_type if file.respond_to?(:content_type)
        format_options[:file_name] ||= filename
        options[:encoding] ||= file.encoding if file.respond_to?(:encoding)
        reader = self.for(format || format_options) do
          # Return a sample from the input file
          sample = file.read(1000)
          file.rewind
          sample
        end
        if reader
          reader.new(file, options, &block)
        else
          raise FormatError, "unknown RDF format: #{format_options.inspect}\nThis may be resolved with a require of the 'linkeddata' gem."
        end
      end
    end

    ##
    # Returns a symbol appropriate to use with RDF::Reader.for()
    # @return [Symbol]
    def self.to_sym
      self.format.to_sym
    end

    ##
    # Returns a symbol appropriate to use with RDF::Reader.for()
    # @return [Symbol]
    def to_sym
      self.class.to_sym
    end
    
    ##
    # Initializes the reader.<commit_msg>Pass :filename option from Reader.open.<commit_after>module RDF
  ##
  # The base class for RDF parsers.
  #
  # @example Loading an RDF reader implementation
  #   require 'rdf/ntriples'
  #
  # @example Iterating over known RDF reader classes
  #   RDF::Reader.each { |klass| puts klass.name }
  #
  # @example Obtaining an RDF reader class
  #   RDF::Reader.for(:ntriples)     #=> RDF::NTriples::Reader
  #   RDF::Reader.for("etc/doap.nt")
  #   RDF::Reader.for(file_name:      "etc/doap.nt")
  #   RDF::Reader.for(file_extension: "nt")
  #   RDF::Reader.for(content_type:   "application/n-triples")
  #
  # @example Instantiating an RDF reader class
  #   RDF::Reader.for(:ntriples).new($stdin) { |reader| ... }
  #
  # @example Parsing RDF statements from a file
  #   RDF::Reader.open("etc/doap.nt") do |reader|
  #     reader.each_statement do |statement|
  #       puts statement.inspect
  #     end
  #   end
  #
  # @example Parsing RDF statements from a string
  #   data = StringIO.new(File.read("etc/doap.nt"))
  #   RDF::Reader.for(:ntriples).new(data) do |reader|
  #     reader.each_statement do |statement|
  #       puts statement.inspect
  #     end
  #   end
  #
  # @abstract
  # @see RDF::Format
  # @see RDF::Writer
  class Reader
    extend  ::Enumerable
    extend  RDF::Util::Aliasing::LateBound
    include RDF::Util::Logger
    include RDF::Readable
    include RDF::Enumerable # @since 0.3.0

    ##
    # Enumerates known RDF reader classes.
    #
    # @yield  [klass]
    # @yieldparam [Class] klass
    # @return [Enumerator]
    def self.each(&block)
      @@subclasses.each(&block)
    end

    ##
    # Finds an RDF reader class based on the given criteria.
    #
    # If the reader class has a defined format, use that.
    #
    # @overload for(format)
    #   Finds an RDF reader class based on a symbolic name.
    #
    #   @param  [Symbol] format
    #   @return [Class]
    #
    # @overload for(filename)
    #   Finds an RDF reader class based on a file name.
    #
    #   @param  [String] filename
    #   @return [Class]
    #
    # @overload for(options = {})
    #   Finds an RDF reader class based on various options.
    #
    #   @param  [Hash{Symbol => Object}] options
    #   @option options [String, #to_s]   :file_name      (nil)
    #   @option options [Symbol, #to_sym] :file_extension (nil)
    #   @option options [String, #to_s]   :content_type   (nil)
    #   @return [Class]
    #   @option options [String]          :sample (nil)
    #     A sample of input used for performing format detection.
    #     If we find no formats, or we find more than one, and we have a sample, we can
    #     perform format detection to find a specific format to use, in which case
    #     we pick the first one we find
    #   @return [Class]
    #   @yieldreturn [String] another way to provide a sample, allows lazy for retrieving the sample.
    #
    # @return [Class]
    def self.for(options = {}, &block)
      options = options.merge(has_reader: true) if options.is_a?(Hash)
      if format = self.format || Format.for(options, &block)
        format.reader
      end
    end

    ##
    # Retrieves the RDF serialization format class for this reader class.
    #
    # @return [Class]
    def self.format(klass = nil)
      if klass.nil?
        Format.each do |format|
          if format.reader == self
            return format
          end
        end
        nil # not found
      end
    end

    class << self
      alias_method :format_class, :format
    end

    ##
    # Parses input from the given file name or URL.
    #
    # @note A reader returned via this method may not be readable depending on the processing model of the specific reader, as the file is only open during the scope of `open`. The reader is intended to be accessed through a block.
    #
    # @example Parsing RDF statements from a file
    #   RDF::Reader.open("etc/doap.nt") do |reader|
    #     reader.each_statement do |statement|
    #       puts statement.inspect
    #     end
    #   end
    #
    # @param  [String, #to_s] filename
    # @param [Symbol] format
    # @param  [Hash{Symbol => Object}] options
    #   any additional options (see {RDF::Util::File.open_file}, {RDF::Reader#initialize} and {RDF::Format.for})
    # @yield  [reader]
    # @yieldparam  [RDF::Reader] reader
    # @yieldreturn [void] ignored
    # @raise  [RDF::FormatError] if no reader found for the specified format
    def self.open(filename, format: nil, **options, &block)
      Util::File.open_file(filename, options) do |file|
        format_options = options.dup
        format_options[:content_type] ||= file.content_type if file.respond_to?(:content_type)
        format_options[:file_name] ||= filename
        options[:encoding] ||= file.encoding if file.respond_to?(:encoding)
        options[:filename] ||= filename
        reader = self.for(format || format_options) do
          # Return a sample from the input file
          sample = file.read(1000)
          file.rewind
          sample
        end
        if reader
          reader.new(file, options, &block)
        else
          raise FormatError, "unknown RDF format: #{format_options.inspect}\nThis may be resolved with a require of the 'linkeddata' gem."
        end
      end
    end

    ##
    # Returns a symbol appropriate to use with RDF::Reader.for()
    # @return [Symbol]
    def self.to_sym
      self.format.to_sym
    end

    ##
    # Returns a symbol appropriate to use with RDF::Reader.for()
    # @return [Symbol]
    def to_sym
      self.class.to_sym
    end
    
    ##
    # Initializes the reader.
{'fraction_non_alphanumeric': 0.10868012145025897, 'fraction_numerical': 0.0012502232541525273, 'mean_word_length': 2.4101705237515225, 'pattern_counts': {'":': 0, '<': 7, '<?xml version=': 0, '>': 9, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '6371227', 'n_tokens_mistral': 3549, 'n_tokens_neox': 3519, 'n_words': 1069}