Module:Asbox stubtree
| Protected | This module is subject to page protection. It is a highly visible module in use by a very large number of pages, or is substituted very frequently. Because vandalism or mistakes would affect many pages, and even trivial editing might cause substantial load on the servers, it is protected from editing. | 
This module is used by Module:Asbox to create stub hierarchy boxes for stub template documentations. It also implements {{asbox/stubtree}} and served the same function via {{Asbox/templatepage}} prior to being converted to Lua.
Acknowledgements edit source
In addition to the contributors listed in the contribution histories of Template:History and Template:History, this module also implements ideas from the (soon to be) deleted Template:Asbox/templatepage, which primary authors are User:MSGJ and User:WOSlinker.
local i = {}
function i.exists(pagename)
    local t = mw.title.new(pagename, "Template")
    return t.exists
end
function i.pcase(word)
   return mw.ustring.upper(mw.ustring.sub(word,1,1)) .. mw.ustring.sub(word,2)
end
function i._subtree(pagename)
    local finalresult
    local out = {"",pagename}
    local tt
    local temppage
    local temppageexists
    local r = 0
    local t = {}
    local removeditem1 = ""
    local removeditem2 = ""
    
    -- split items on dash into table
    for token in mw.ustring.gmatch(pagename, "[^-]+") do
        -- don't add numbered items to list
        if tonumber(mw.ustring.sub(token,1,1)) == nil then
            table.insert(t,token)
        else
            r = 1
        end
    end
    table.remove(t, #t)
    while (#t > 1) do
        if r == 1 then
            r = 0
        else
            -- Remove 1st item from list
            removeditem1 = t[1]
            table.remove(t, 1)
        end
        temppage = table.concat(t, "-") .. "-stub"
        temppageexists = i.exists(temppage)
        if temppageexists == true then
            table.insert(out,"[[Template:" .. temppage .. "|" .. i.pcase(temppage) .. "]]")
        else
            -- If template with first item does not exist, try removing last item
            removeditem2 = t[#t]
            table.remove(t, #t)
            temppage = removeditem1 .. "-" .. table.concat(t, "-") .. "-stub"
            if #t == 0 then
                temppage = removeditem1 .. "-stub"
            end
            temppageexists = i.exists(temppage)
            if temppageexists == true then
                -- if exists then add first item back to list
                table.insert(t,1,removeditem1)
                table.insert(out,"[[Template:" .. temppage .. "|" .. i.pcase(temppage) .. "]]")
            else
                -- if exists then add last item back to list
                table.insert(t,removeditem2)
            end
        end
    end
    finalresult = '<div style="float:right; border-style:dotted; border-width:2px; padding:5px; margin:5px;">'
    finalresult = finalresult .. '<span title="This shows the hierarchy of the stub template in relation to other templates." style="font-size:125%; font-weight:bold;">Stub hierarchy</span>'
    finalresult = finalresult .. table.concat(out, "\n* ")
    finalresult = finalresult .. '\n* [[Template:Stub|Stub]]'
    finalresult = finalresult .. '\n</div>'
    return finalresult
end
function i.subtree(frame)
    return i._subtree(frame.args["pagename"])
end
return i
