View difference between Paste ID: e9LuimgQ and r6SDTML7

 require 'luanet'
 --luanet.load_assembly("System")
 Console = luanet.import_type("System.Console")
 ConsoleColor = luanet.import_type("System.ConsoleColor")
 
 local FILENAME = "fook.txt"
 
 function string:split(delimiter, limit)
   local result = { }
   local from  = 1
   local delim_from, delim_to = string.find( self, delimiter, from  )
   while delim_from do
     table.insert( result, string.sub( self, from , delim_from-1 ) )
     from  = delim_to + 1
     delim_from, delim_to = string.find( self, delimiter, from  )
   end
   table.insert( result, string.sub( self, from  ) )
 
   for i=limit+1,#result do
 	result[limit] = result[limit]..delimiter..result[i]
   end
 
   return result
 end
 
 local appendtext = ""
 Console.ForegroundColor = ConsoleColor.Green --Change colour to pure green
 while(true) do --infinite loop until "break"
 	f = io.open(FILENAME, "r")
 	os.execute("Cls") --clear screen and print lines
 	for ln in f:lines() do
 		io.write("\n"..ln)
 	end
 	io.write(appendtext) --print() without the new line
 	f:close() --close the file so we can start a writing stream instead of read only
 	print("\n----------------------------")
 
 	userinput = io.read()
 	local args = userinput:split(" ", 2)
 	local cmd, val = args[1], args[2]
 	f = io.open(FILENAME, "a")
 	if cmd == "save" then
 		f:write(appendtext) --write the appended text to the file, flush, and clear append
 		f:flush()
 		appendtext = ""
 	elseif cmd == "write" then
 		appendtext = appendtext..val --add onto appended text
 	elseif cmd == "return" then
 		appendtext = appendtext.."\n" --start on a new line
 	elseif cmd == "exit" then
 		break --exit the while loop.
 	end
 	f:close() --close writing so that we can read it for next loop
 end