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: {{#invoke:Ordinal|ordinal|1=|2=|sup=}} {{#invoke:Ordinal|ordinal}} - 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] = "{{{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