Module: RDF::TriX::Writer::Nokogiri

Defined in:
vendor/bundler/ruby/3.3.0/bundler/gems/rdf-trix-4b113f65db0e/lib/rdf/trix/writer/nokogiri.rb

Overview

Nokogiri implementation of the TriX writer.

See Also:

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.library ⇒ Symbol

Returns the name of the underlying XML library.

Returns:



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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-trix-4b113f65db0e/lib/rdf/trix/writer/nokogiri.rb', line 12

def self.library
  :nokogiri
end

Instance Method Details

#create_comment(text) ⇒ Nokogiri::XML::Comment

Creates an XML comment element with the given text.

Parameters:

Returns:

  • (Nokogiri::XML::Comment) 


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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-trix-4b113f65db0e/lib/rdf/trix/writer/nokogiri.rb', line 71

def create_comment(text)
  ::Nokogiri::XML::Comment.new(@xml, text.to_s)
end

#create_element(name, content = nil, attributes = {}) {|element| ... } ⇒ Nokogiri::XML::Element

Creates an XML element of the given name, with optional given content and attributes.

Parameters:

Yields:

  • (element)

Yield Parameters:

Returns:



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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-trix-4b113f65db0e/lib/rdf/trix/writer/nokogiri.rb', line 85

def create_element(name, content = nil, attributes = {}, &block)
  element = @xml.create_element(name.to_s)
  if xmlns = attributes.delete(:xmlns)
    element.default_namespace = xmlns
  end
  fragment = attributes.delete(:fragment)
  attributes.each { |k, v| element[k.to_s] = v }
  element.content = content.to_s unless content.nil?
  element << fragment if fragment
  block.call(element) if block_given?
  element
end

#create_graph(name = nil) {|element| ... } ⇒ Nokogiri::XML::Element

Creates an XML graph element with the given name.

Parameters:

Yields:

  • (element)

Yield Parameters:

Returns:



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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-trix-4b113f65db0e/lib/rdf/trix/writer/nokogiri.rb', line 55

def create_graph(name = nil, &block)
  @trix << (graph = create_element(:graph))
  case name
    when nil then nil
    when RDF::Node then graph << create_element(:id, name.to_s) # non-standard
    else graph << create_element(:uri, name.to_s)
  end
  block.call(graph) if block_given?
  graph
end

#initialize_xml(**options)

This method returns an undefined value.

Initializes the underlying XML library.

Parameters:



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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-trix-4b113f65db0e/lib/rdf/trix/writer/nokogiri.rb', line 21

def initialize_xml(**options)
  require 'nokogiri' unless defined?(::Nokogiri)
  @xml = ::Nokogiri::XML::Document.new
  @xml.encoding = @encoding
end

#write_epilogue

This method returns an undefined value.

Outputs the TriX document.



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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-trix-4b113f65db0e/lib/rdf/trix/writer/nokogiri.rb', line 42

def write_epilogue
  puts @xml.to_xml
  @xml = @trix = nil
  super
end

#write_prologue

This method returns an undefined value.

Generates the TriX root element.



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# File 'vendor/bundler/ruby/3.3.0/bundler/gems/rdf-trix-4b113f65db0e/lib/rdf/trix/writer/nokogiri.rb', line 31

def write_prologue
  options = {xmlns: Format::XMLNS, xml: "http://www.w3.org/XML/1998/namespace"}
  options["xml:base"] = base_uri.to_s if base_uri
  @xml << (@trix = create_element(:TriX, nil, options))
  super
end