--[[
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.
]]
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 = "<sup>" .. suffix .. "</sup>"
end
return n .. suffix
end
return p
