tbl Builder

chestIDsouth = {0,1,2,3,4,5,6,7}
chests = {}
local tItemTbl = {}
direction = 4

function loadChests()
  for i = 1, #chestIDsouth do
    chests[i] = peripheral.wrap("diamond_chest_"..tostring(chestIDsouth[i-1])
  end
end

function buildChestsItemList()
  local tblItemNames = {}
  for i = 1, #chestIDsouth do
    if chests[i-1] ~= nil then
		for j = 1, 108 do
		  item = chests[i].getStackInSlot(j-1)
		  if item ~= nil then
			name = item["name"]
		    table.insert(tItemNames, row)
		  end
		end
	end
  end
  return tblItemNames
end
function checkForNewItems(tblItemNames)
  for i = 1, #tblItemNames do
    if doesContain(tblItemNames[i]) == false then
	  printf("Missing item cost for: " .. tblItemNames[i])
	  printf("What should it cost? (just hit enter to skip)")
	  cost = read()
	  if cost ~= nil then
	    row = (tblItemNames[i], tonumber(cost))
	    table.insert(tItemTbl, row)
	  end
    end
  end
end
function doesContain(name)
 for i = 1, #tItemTbl do
  if tItemTbl[i][1] == name then
    return true
  end
 end
 return false
end
function loadTbl()
  if fs.exists("tItemTbl") then
    local file = fs.open("tItemTbl","r")
    fileData = file.readAll()
    tItemTbl = textutils.unserialize(fileData)
    file.close()
  end
end
function saveTbl()
  local file = fs.open("tItemTbl", "w")
  file.write(textutils.serialize(tItemTbl))
  file.close()
end

loadTbl()
if tItemTbl == nil then
  tItemTbl = {}
end
iList = buildChestsItemList()
checkForNewItems(iList)
saveTbl()