1 function convert.to_human(value, typ)

2 if value == nil then return "" end -- TODO: is this correct?

3 if typ and not atom.has_type(value, typ) then

4 error("The value passed to convert.to_human(...) has not the specified type.")

5 end

6 local type_symbol

7 local value_type = type(value)

8 if value_type ~= "table" and value_type ~= "userdata" then

9 type_symbol = value_type

10 else

11 type_symbol = convert._type_symbol_mappings[getmetatable(value)]

12 end

13 if not type_symbol then

14 error("Unrecognized type reference occurred in convert.to_human(...).")

15 end

16 local converter = convert["_from_" .. type_symbol .. "_to_human"]

17 if not converter then

18 error("Type reference in convert.from_human(...) could be recognized, but the converter function is not existent.")

19 end

20 return converter(value)

21 end