Module:NzIcewayInline

Documentation for this module may be created at Module:NzIcewayInline/doc

local p = {} --p stands for package

local linePages = {
	ACL = "Auckland Circle line",
	BZL = "Blazerwood line",
	BoP = "Bay of Plenty line",
	NL = "Napier line",
	NZML = "North–South Main line (New Zealand)",
	SPL = "South Pacific link",
	TTL = "Trans-Tasman link",
	WB = "World Border line"
}

local fileModule = require("Module:FileExists")

local function isInteger(str)
    return str:match("^[+-]?%d+$") ~= nil
end

--1: IGN 2: TYPE 3: VARIANT 4: SIZE
function p.template( frame )
	local lineCode = frame.args[1]
	if lineCode:sub(1, 2) == "Hi" then
		lineCode = lineCode:sub(3)
	end
	if isInteger(lineCode) then
		return frame:preprocess("[[File:New Zealand Highway "..lineCode..".png|30px|border|link=Nostra:Highway "..lineCode.." (New Zealand)]]")
	end
    return frame:preprocess("[[File:"..lineCode.." shield.png|30px|border|link=Nostra:"..linePages[lineCode].."]]")
end

return p