args.lua

local args = love.arg.parseGameArguments(arg)
local insert = table.insert

local processed, last, cache = {}, nil, nil

for i=1, #args do
  local arg = args[i]
  local firstChar, lastChar = arg:sub(1,1), arg:sub(-1)
  local isArgument = firstChar == "-" and not cache
  
  if not cache and (firstChar == "\"" or firstChar == "'") then
    cache = arg:sub(2)
    goto continue
  end
  
  if cache then
    local chars = #arg
    if lastChar == "\"" or lastChar == "'" then
      arg = cache.." "..arg:sub(1, chars-1)
      cache = nil
    else
      cache = cache.." "..arg:sub(1, chars)
      goto continue
    end
  end
  
  if not isArgument then
    if last then
      if type(processed[last]) ~= "table" then
        processed[last] = {}
      end
      insert(processed[last], arg)
    else
      insert(processed, arg)
    end
  else
    processed[arg] = processed[arg] or true
    last = arg
  end
  ::continue::
end

if cache then
  if last then
    if type(processed[last]) ~= "table" then
      processed[last] = {}
    end
    insert(processed[last], cache)
  else
    insert(processed, cache)
  end
end

return processed