1 --[[--

2 text = -- text with the value formatted as a date, according to the locale settings

3 format.date(

4 value, -- a date, a timestamp or nil

5 {

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

7 }

8 )

9

10 Formats a date or timestamp as a date, according to the locale settings.

11

12 --]]--

13

14 function format.date(value, options)

15 local options = options or {}

16 if value == nil then

17 return options.nil_as or ""

18 end

19 if not (

20 atom.has_type(value, atom.date) or

21 atom.has_type(value, atom.timestamp)

22 ) then

23 error("Value passed to format.date(...) is neither a date, a timestamp, nor nil.")

24 end

25 if value.invalid then

26 return "invalid"

27 end

28 local result = locale.get("date_format") or "YYYY-MM-DD"

29 result = string.gsub(result, "YYYY", function()

30 return format.decimal(value.year, { digits = 4 })

31 end)

32 result = string.gsub(result, "YY", function()

33 return format.decimal(value.year % 100, { digits = 2 })

34 end)

35 result = string.gsub(result, "Y", function()

36 return format.decimal(value.year)

37 end)

38 result = string.gsub(result, "MM", function()

39 return format.decimal(value.month, { digits = 2 })

40 end)

41 result = string.gsub(result, "M", function()

42 return format.decimal(value.month)

43 end)

44 result = string.gsub(result, "DD", function()

45 return format.decimal(value.day, { digits = 2 })

46 end)

47 result = string.gsub(result, "D", function()

48 return format.decimal(value.day)

49 end)

50 return result

51 end