module Nokogiri::XSLT

def quote_params(params)
  parray = (params.instance_of?(Hash) ? params.to_a.flatten : params).dup
  parray.each_with_index do |v, i|
    parray[i] = if i % 2 > 0
      if v =~ /'/
        "concat('#{v.gsub(/'/, %q{', "'", '})}')"
      else
        "'#{v}'"
      end
    else
      v.to_s
    end
  end
  parray.flatten
end