html_to_word.rb

require 'htmltoword'
require 'mustache'

class HtmlToOpenXml 
    include Htmltoword::XSLTHelper   

    def convert(html)
      node = Nokogiri::HTML(html.gsub(/>\s+</, '><'))
      node = xslt(stylesheet_name: 'cleanup').transform(node)
      node = xslt(stylesheet_name: 'inline_elements').transform(node)
      xslt(stylesheet_path: document_xslt(false)).transform(node)
    end
  end

#usage HtmlToOpenXml.new.convert(html)
class TemplateParser < Mustache
  
  def load_variables(template)
    Mustache::Parser.new.compile(fix_formatting(template)).map{|arr| 
      arr[2][2] if arr[2]
    }.compact.map(&:first).uniq
  end

  def plan_info
    
  end
  
  def fix_formatting(xml)
    xml.gsub(/\{{([^}]+)\}}/){ |match| 
      match.gsub(/<[^>]+>/,'').split.join('')
    }
  end
  
   
  def escapeHTML(txt)
    return txt
  end
end

puts TemplateParser.new.load_variables(open('document.xml').read)