truncatehtml

in _plugins/html_filters.rb [8:36]

• 21 lines of code
• 6 McCabe index (conditional complexity)

    def truncatehtml(raw, max_length = 15, continuation_string = "...")
     doc = Nokogiri::HTML.fragment(raw.encode('UTF-8', :invalid => :replace, :undef => :replace, :replace => ''))
      current_length = 0;
      deleting = false
      to_delete = []

      depth_first(doc.children.first) do |node|
    
        if !deleting && node.class == Nokogiri::XML::Text
          current_length += node.text.length
        end

        if deleting
          to_delete << node
        end
        
        if !deleting && current_length > max_length
          deleting = true
          
          trim_to_length = current_length - max_length + 1
          node.content = node.text[0..trim_to_length] + continuation_string
        end
      end
  
      to_delete.map(&:remove)
  
      doc.inner_html
    end