edit file to clean this

getMethodsPeripheral.lua

@@ -1,24 +1,51 @@
--- ask direction to get methods of a peripheral
-print("Enter the direction of the peripheral (left, right, top, bottom, front, back):")
-local direction = io.read()
-if not direction or direction == "quit" or direction == "exit" then
+local function getPeripheralDirection()
+	print("Enter the direction of the peripheral (left, right, top, bottom, front, back):")
+	local direction = io.read()
+	if not direction or direction == "quit" or direction == "exit" then
+		print("No direction specified, exiting.")
+		return
+	end
+	return direction
+end
+
+local function checkDirectionIsValid(direction)
+	if not direction or direction == "quit" or direction == "exit" then
+		print("No direction specified, exiting.")
+		return false
+	end
+	return true
+end
+
+local function getMethodsPeripheral(direction)
+	local info = peripheral.getMethods(direction)
+	return info
+end
+
+local function displayMethodsPeripheral(info)
+	local nbOfMethods = 0
+	for methodName, methodInfo in pairs(info) do
+		nbOfMethods = nbOfMethods + 1
+		if nbOfMethods > 10 then
+			print("Too many methods, please press a key to continue...")
+			event, p1 = os.pullEvent("key")
+			nbOfMethods = 0
+			term.clear()
+		end
+		print(methodName .. ' ' .. methodInfo)
+	end
+end
+
+-- main
+local direction = getPeripheralDirection()
+local isDirectionIsNotEmpty = checkDirectionIsValid(direction)
+if not isDirectionIsNotEmpty then
 	print("No direction specified, exiting.")
 	return
 end
-local info = {}
-
-info = peripheral.getMethods(direction)
-
--- list the methods from info
-
-local nbOfMethods = 0
-for methodName, methodInfo in pairs(info) do
-	nbOfMethods = nbOfMethods + 1
-	if nbOfMethods > 10 then
-		print("Too many methods, please press a key to continue...")
-		event, p1 = os.pullEvent("key")
-		nbOfMethods = 0
-		term.clear()
-	end
-	print(methodName .. ' ' .. methodInfo)
+local info = getMethodsPeripheral(direction)
+if not info then
+	print("No info found, exiting.")
+	return
 end
+
+displayMethodsPeripheral(info)