Simple program debug, looks correct but won't run

[redstorm64 0]

I've got a simple program that won't run due to an apparent missing "end" somewhere in the code.  I've looked over the code a ridiculous number of times and can't find anything wrong with it.  Hoping somebody is willing to review my code quick to see if I've missed something.  I'm hoping I've just overlooked something simple.

 

I've run the program successfully in parts, with everything included except for the first if statement (line 28 thru 86).  As soon as I add that section, I get an error looking for an 'end' to close the while loop at line 17 [see attached].

local component = require("component")
local modem = component.modem
local term = require("term")
local event = require("event")

local prgms = {"move to","home","unready","reportPos","exit"}

local port = 100
print("Starting Robot Commander...")
print("Opening port "..port.."...")
modem.open(port)
print("Port "..port.." open: :"..tostring(modem.isOpen(port)))
os.sleep(1)

local select = 0

while prgms[select] ~= "exit" do

  print("\n\nRobot Commander\n")
  print("1) Move robot to...")
  print("2) Send robot home")
  print("3) Exit robot ready state\n   (unable to restart remotely)")
  print("4) Report robot position")
  print("5) Exit Robot Commander\n")

  select = tonumber(io.read())

  if prgms[select] == "move to" then

    local mode
    local valid = false

    while valid == false do

      print("\n(R)elative or (absolute) movement?")
      mode = io.read()
  
      if mode == "r" or mode == "R" then
        print("Enter x-distance:")
        xTarget = io.read()
        print("Enter y-distance:")
        yTarget = io.read()
        print("Enter z-distance:")
        zTarget = io.read()
        valid = true

      elseif mode == "a" or mode == "A" then
        print("Enter x-target:")
        xTarget = io.read()
        print("Enter y-target:")
        yTarget = io.read()
        print("Enter z-target:")
        zTarget = io.read()
        valid = true
  
      else
        print("Error: Must enter 'a' or 'r' for mode...\n")
      end

    end

    valid = false
    while valid == false do

      print("\nMode\tx\ty\tz")
      print(tostring(mode).."\t"..xTarget.."\t"..yTarget.."\t"..zTarget)
      print("Send command?  ('y' or 'n')")
      option = io.read()

      if option == "y" or option == "Y" then
        modem.broadcast(100,1,xTarget,yTarget,zTarget,tostring(mode))
        print("Command sent")
        valid = true
  
      elseif option == "n" or option == "N" then
        print("Please re-select command.")
        valid = true

      else
        print("Error: Must enter 'y' or 'n'")

      end

    end

  end

  if prgms[select] == "home" then
    modem.broadcast(port,2)
  end

  if prgms[select] == "unready" then
    modem.broadcast(port,3)
  end

  if prgms[select] == "reportPos" then
    local pos = {}
    modem.broadcast(port,4)
    pos = {event.pull(10,"modem")}
    print(pos[6].." "..pos[7].." "..pos[8])
    print("press any key to continue")
    os.sleep(3)
    io.read()
  end

  if prgms[select] == "exit" then
    print("Exiting Robot Commander...")
    os.sleep(1)
  end

end

[redstorm64 0]

So I added an end at line 77 in Josh's code and apparently everything works now.  As far as I can tell, it's identical to the original code that I posted which is strange...  Anyways, I'm just happy it works now.  Thanks for the help guys!

[Cat 3]

Only *possible* problem in the program I see is "local mode" on Line 30. Maybe try local mode = "" or something similar. I've read through this code 6 times and can't find anything else *Possibly* wrong. I don't really understand the local mode part of the code in a sense of debugging, but that looks like the only thing I don't understand.

Try it and tell me the results, thanks.

[Lizzian 46]

local component = require("component")

local modem = component.modem

local term = require("term")

local event = require("event")

local prgms = {"move to","home","unready","reportPos","exit"}

local port = 100

print("Starting Robot Commander...")

print("Opening port "..port.."...")

modem.open(port)

print("Port "..port.." open: :"..tostring(modem.isOpen(port)))

os.sleep(1)

local select = 0

while prgms[select] ~= "exit" do

    print("\n\nRobot Commander\n")

    print("1) Move robot to...")

    print("2) Send robot home")

    print("3) Exit robot ready state\n (unable to restart remotely)")

    print("4) Report robot position")

    print("5) Exit Robot Commander\n")

    select = tonumber(io.read())

    if prgms[select] == "move to" then

        local mode

        local valid = false

        while valid == false do

            print("\n(R)elative or (absolute) movement?")

            mode = io.read()

            if mode == "r" or mode == "R" then

                print("Enter x-distance:")

                xTarget = io.read()

                print("Enter y-distance:")

                yTarget = io.read()

                print("Enter z-distance:")

                zTarget = io.read()

                valid = true

            elseif mode == "a" or mode == "A" then

                print("Enter x-target:")

                xTarget = io.read()

                print("Enter y-target:")

                yTarget = io.read()

                print("Enter z-target:")

                zTarget = io.read()

                valid = true

            else

                print("Error: Must enter 'a' or 'r' for mode...\n")

            end

        end

        valid = false

        while valid == false do

            print("\nMode\tx\ty\tz")

            print(tostring(mode).."\t"..xTarget.."\t"..yTarget.."\t"..zTarget)

            print("Send command? ('y' or 'n')")

            option = io.read()

            if option == "y" or option == "Y" then

                modem.broadcast(100,1,xTarget,yTarget,zTarget,tostring(mode))

                print("Command sent")

                valid = true

            elseif option == "n" or option == "N" then

                    print("Please re-select command.")

                    valid = true

            else

                print("Error: Must enter 'y' or 'n'")

            end

        end

    if prgms[select] == "home" then

        modem.broadcast(port,2)

    end

    if prgms[select] == "unready" then

        modem.broadcast(port,3)

    end

    if prgms[select] == "reportPos" then

        local pos = {}

        modem.broadcast(port,4)

        pos = {event.pull(10,"modem")}

        print(pos[6].." "..pos[7].." "..pos[8])

        print("press any key to continue")

        os.sleep(3)

        io.read()

    end

    if prgms[select] == "exit" then

        print("Exiting Robot Commander...")

        os.sleep(1)

    end

end

you seemed to have a wild extra "end" in the middle of your program, this should work but i cant test since i'm not at a mc capable computer

[Cat 3]

You caught that? Whelp, I'm not good at debugging without my loyal NP++

[redstorm64 0]

@JoshTheEnder - Thanks for the help but I'm still getting the same error     'end' expected (to close 'while' at line 17) near <eof>

[redstorm64 0]

Yeah, as soon as I add an extra 'end' at the very end, the program will run.  However, I am not able to access an of the 'if' statements except for the "moe to" and "exit" sections...  I'm beginning to think this is a bug and not a programming error...