1 --[[--

2 text = -- a string

3 format.string(

4 value, -- any value where tostring(value) gives a reasonable result

5 {

6 nil_as = nil_text -- text to be returned for a nil value

7 }

8 )

9

10 Formats a value as a text by calling tostring(...), unless the value is nil, in which case the text returned is chosen by the 'nil_as' option.

11

12 --]]--

13

14 function format.string(str, options)

15 local options = options or {}

16 if str == nil then

17 return options.nil_as or ""

18 else

19 return tostring(str)

20 end

21 end