jbe/bsw@0: function convert.to_human(value, typ)
jbe/bsw@0:   if value == nil then return "" end  -- TODO: is this correct?
jbe/bsw@0:   if typ and not atom.has_type(value, typ) then
jbe/bsw@0:     error("The value passed to convert.to_human(...) has not the specified type.")
jbe/bsw@0:   end
jbe/bsw@0:   local type_symbol
jbe/bsw@0:   local value_type = type(value)
jbe/bsw@0:   if value_type ~= "table" and value_type ~= "userdata" then
jbe/bsw@0:     type_symbol = value_type
jbe/bsw@0:   else
jbe/bsw@0:     type_symbol = convert._type_symbol_mappings[getmetatable(value)]
jbe/bsw@0:   end
jbe/bsw@0:   if not type_symbol then
jbe/bsw@0:     error("Unrecognized type reference occurred in convert.to_human(...).")
jbe/bsw@0:   end
jbe/bsw@0:   local converter = convert["_from_" .. type_symbol .. "_to_human"]
jbe/bsw@0:   if not converter then
jbe/bsw@0:     error("Type reference in convert.from_human(...) could be recognized, but the converter function is not existent.")
jbe/bsw@0:   end
jbe/bsw@0:   return converter(value)
jbe/bsw@0: end