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view framework/env/convert/from_human.lua @ 31:1cd9e69b85cb
add execute.load_chunk(args)
load_chunk loads the content of a lua file and returns the code.
It can construct the path name easily so you can put helper code in
seperate files for DRYness.
load_chunk loads the content of a lua file and returns the code.
It can construct the path name easily so you can put helper code in
seperate files for DRYness.
| author | Daniel Poelzleithner <poelzi@poelzi.org> |
|---|---|
| date | Tue Oct 05 02:34:04 2010 +0200 (2010-10-05) |
| parents | 9fdfb27f8e67 |
| children |
line source
1 function convert.from_human(str, typ)
2 if not typ then
3 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.")
4 end
5 if not str then return nil end -- TODO: decide, if an error should be raised instead
6 local type_symbol = convert._type_symbol_mappings[typ]
7 if not type_symbol then
8 error("Unrecognized type reference passed to convert.from_human(...).")
9 end
10 local converter = convert["_from_human_to_" .. type_symbol]
11 if not converter then
12 error("Type reference passed to convert.from_human(...) was recognized, but the converter function is not existent.")
13 end
14 return converter(str)
15 end