# File lib/nokogiri/xml/document_fragment.rb, line 10
def initialize document, tags = nil, ctx = nil
  return self unless tags

  children = if ctx
               # Fix for issue#490
               if Nokogiri.jruby?
                 # fix for issue #770
                 ctx.parse("<root #{namespace_declarations(ctx)}>#{tags}</root>").children
               else
                 ctx.parse(tags)
               end
             else
               XML::Document.parse("<root>#{tags}</root>") \
                 .xpath("/root/node()")
             end
  children.each { |child| child.parent = self }
end

static VALUE new(int argc, VALUE *argv, VALUE klass)
{
  xmlDocPtr xml_doc;
  xmlNodePtr node;
  VALUE document;
  VALUE rest;
  VALUE rb_node;

  rb_scan_args(argc, argv, "1*", &document, &rest);

  Data_Get_Struct(document, xmlDoc, xml_doc);

  node = xmlNewDocFragment(xml_doc->doc);

  nokogiri_root_node(node);

  rb_node = Nokogiri_wrap_xml_node(klass, node);
  rb_obj_call_init(rb_node, argc, argv);

  if(rb_block_given_p()) rb_yield(rb_node);

  return rb_node;
}

# File lib/nokogiri/xml/document_fragment.rb, line 129
def parse tags
  self.new(XML::Document.new, tags)
end

# File lib/nokogiri/xml/document_fragment.rb, line 93
def css *args
  if children.any?
    children.css(*args) # 'children' is a smell here
  else
    NodeSet.new(document)
  end
end

# File lib/nokogiri/xml/document_fragment.rb, line 29
def dup
  new_document = document.dup
  new_fragment = XML::DocumentFragment.new(new_document)
  children.each do |child|
    child.dup(1, new_document).parent = new_fragment
  end
  new_fragment
end

# File lib/nokogiri/xml/document_fragment.rb, line 135
def errors
  document.errors
end

# File lib/nokogiri/xml/document_fragment.rb, line 41
def name
  '#document-fragment'
end

# File lib/nokogiri/xml/document_fragment.rb, line 112
def search *rules
  rules, handler, ns, binds = extract_params(rules)

  rules.inject(NodeSet.new(document)) do |set, rule|
    set += if rule =~ Searchable::LOOKS_LIKE_XPATH
             xpath(*([rule, ns, handler, binds].compact))
           else
             children.css(*([rule, ns, handler].compact)) # 'children' is a smell here
           end
  end
end

# File lib/nokogiri/xml/document_fragment.rb, line 54
def to_html *args
  if Nokogiri.jruby?
    options = args.first.is_a?(Hash) ? args.shift : {}
    if !options[:save_with]
      options[:save_with] = Node::SaveOptions::NO_DECLARATION | Node::SaveOptions::NO_EMPTY_TAGS | Node::SaveOptions::AS_HTML
    end
    args.insert(0, options)
  end
  children.to_html(*args)
end

# File lib/nokogiri/xml/document_fragment.rb, line 47
def to_s
  children.to_s
end

# File lib/nokogiri/xml/document_fragment.rb, line 68
def to_xhtml *args
  if Nokogiri.jruby?
    options = args.first.is_a?(Hash) ? args.shift : {}
    if !options[:save_with]
      options[:save_with] = Node::SaveOptions::NO_DECLARATION | Node::SaveOptions::NO_EMPTY_TAGS | Node::SaveOptions::AS_XHTML
    end
    args.insert(0, options)
  end
  children.to_xhtml(*args)
end

# File lib/nokogiri/xml/document_fragment.rb, line 82
def to_xml *args
  children.to_xml(*args)
end