class Temple::HTML::Pretty

def on_dynamic(code)
  if @pretty
    tmp = unique_name
    indent_code = ''
    indent_code << "#{tmp} = #{tmp}.sub(/\\A\\s*\\n?/, \"\\n\"); " if options[:indent_tags].include?(@last)
    indent_code << "#{tmp} = #{tmp}.gsub(\"\n\", #{indent.inspect}); "
    if ''.respond_to?(:html_safe)
      safe = unique_name
      # we have to first save if the string was html_safe
      # otherwise the gsub operation will lose that knowledge
      indent_code = "#{safe} = #{tmp}.html_safe?; #{indent_code}#{tmp} = #{tmp}.html_safe if #{safe}; "
    end
    @last = :dynamic
    [:multi,
     [:code, "#{tmp} = (#{code}).to_s"],
     [:code, "if #{@pre_tags_name} !~ #{tmp}; #{indent_code}end"],
     [:dynamic, tmp]]
  else
    [:dynamic, code]
  end
end