string splitter

-- basically string.split from roblox
function split(str,splitter)
  local tab = {}
  local lastnum = 1
  for i=1,#str do
    if string.sub(str,i,i) == splitter then
      table.insert(tab,string.sub(str,lastnum,i-1))
      lastnum = i+1
    end
  end
  table.insert(tab,string.sub(str,lastnum))
  return tab
end