Module:Ordinal

-- This template will add the appropriate ordinal suffix to a given integer. Please do not modify this code without applying the changes first at Module:Ordinal/sandbox and testing at Module:Ordinal/sandbox/testcases and Module talk:Ordinal/sandbox/testcases.

local p = {}

local yesno    = require('Module:Yesno') -- boolean value interpretation

--[[ This function converts an integer value into a numeral followed by ordinal indicator. The output string might contain HTML tags. Usage:

- uses the caller's parameters Parameters 1: Any number or string. 2: Set to "d" if the module should display "d" instead of "nd" and "rd". sup: Set to yes/no to toggle superscript ordinal suffix. ]] function p.ordinal(frame) local args = frame.args if args[1] == nil then args = frame:getParent.args end if args[1] == nil then args[1] = "" end return p._ordinal(args[1], (args[2] == 'd'), yesno(args.sup)) end

function p._ordinal(n, d, sup) local x = tonumber(mw.ustring.match(n, "(%d*)%W*$")) local suffix = "th" -- If tonumber(n) worked: if x then local mod10 = math.abs(x) % 10 local mod100 = math.abs(x) % 100 if    mod10 == 1 and mod100 ~= 11 then suffix = "st" elseif mod10 == 2 and mod100 ~= 12 then if d then suffix = "d" else suffix = "nd" end elseif mod10 == 3 and mod100 ~= 13 then if d then suffix = "d" else suffix = "rd" end end end if sup then suffix = "" .. suffix .. ""	end return n .. suffix end

return p