Module:CraftingDPL

Returns a list of categories based on the string of items that are used for crafting. Used in the creation of DPL categories for crafting templates.

---

local p = {}

function p.explode(delimiter, text)
  local list = {}; local pos = 1
  if string.find("", delimiter, 1) then
    -- We'll look at error handling later!
    error("delimiter matches empty string!")
  end
  while 1 do
    local first, last = string.find(text, delimiter, pos)
    if first then
      table.insert(list, string.sub(text, pos, first-1))
      pos = last+1
    else
      table.insert(list, string.sub(text, pos))
      break
    end
  end
  return list
end

function p.parseCats(frame)
    local s = tostring(frame.args[1])
    local arr = p.explode(";", s)
    local s2 = ""

    for i=1, #arr do
        if (arr[i] ~= nil and arr[i] ~= "") then
                s2 = s2 .. "[[Category:Recipe using " .. arr[i] .."]] "  
        end
    end

    --return s2
    return "" --Needs efficiency improvements
end

return p