jbe/bsw@0: function convert.from_human(str, typ)
jbe/bsw@0:   if not typ then
jbe/bsw@0:     error("Using convert.from_human(...) to convert a human readable string to an internal data type needs a type to be specified as second parameter.")
jbe/bsw@0:   end
jbe/bsw@0:   if not str then return nil end  -- TODO: decide, if an error should be raised instead
jbe/bsw@0:   local type_symbol = convert._type_symbol_mappings[typ]
jbe/bsw@0:   if not type_symbol then
jbe/bsw@0:     error("Unrecognized type reference passed to convert.from_human(...).")
jbe/bsw@0:   end
jbe/bsw@0:   local converter = convert["_from_human_to_" .. type_symbol]
jbe/bsw@0:   if not converter then
jbe/bsw@0:     error("Type reference passed to convert.from_human(...) was recognized, but the converter function is not existent.")
jbe/bsw@0:   end
jbe/bsw@0:   return converter(str)
jbe/bsw@0: end