utils.lua

function split(inputString, separateWith)
  if separateWith == nil then
    separateWith = ", "
  end
  local t={}
  for str in string.gmatch(inputString, "([^"..separateWith.."]+)") do
    table.insert(t, str)
  end
  return t
end

function join(inputTable, joinWith)
    if joinWith == nil then
      joinWith = ", "
    end
    return table.concat(inputTable, joinWith)
end

function repeatString(inputString, times)
  if times == nil then
    times = 1
  end
  local t = ""
  for i = 1, times do
      t = t..inputString
  end
  return t
end