Module:Sandbox/Nbound/infobox Australian road/State

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local p = {}

function p.State(frame)
    local pframe = frame:getParent()
    local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself
    local args = pframe.args -- the arguments passed TO the template, in the wikitext that transcludes the template
    local statecheck = config[1] -- check if first or second state
    local state -- initialise variable
    if statecheck == "State1" then
        state = args["state"] or "" -- get state
    else
        state = args["state2"] or "" -- get state (2nd state)
    end
    local linkpass = state -- create untouched variable to pass wikitext link (if needed)
    state = string.lower(state) -- change state to lower case
    local links = {act = "[[Australian Capital Territory]]", jbt = "[[Jervis Bay Territory]]", nsw = "[[New South Wales]]", nt = "[[Northern Territory]]", qld = "[[Queensland]]",
                   sa = "[[South Australia]]", tas = "[[Tasmania]]", vic = "[[Victoria (Australia)|Victoria]]", wa = "[[Western Australia]]"}
    if statecheck == "State1" then
        return links[state] or linkpass or nil -- if first state no need for dash
    elseif state == "" then
        return nil --return nil for 2nd state if none exists (first state is handled in code above, but code below cannot concatenate a null value)
    elseif links[state] then
        return " – " .. links[state] -- return premade link if not a wikitext link
    else
        return " – " .. linkpass -- return wikitext link if all else fails
    end
end
return p