local util = {}

util.table_str = function(tbl, recursive, indent)
   local tab = '\t'
   
   local recursive = recursive or false
   local indent = indent or ''

   local str = '{'

   for key, value in pairs(tbl) do
      local key_str, value_str
      if type(key) == 'table' and recursive then
	 key_str = util.table_str(key, recursive, indent..tab)
      else
	 key_str = tostring(key)
      end

      if type(value) == 'table' and recursive then
	 value_str = util.table_str(value, recursive, indent..tab)
      else
	 value_str = tostring(value)
      end

      str = str .. string.format(
	 '\n%s%s = %s', indent..tab,
	 key_str, value_str)
   end

   if string.len(str) > 1 then
      str = str .. '\n' .. indent
   end
   str = str .. '}'
   return str
end

return util