Need help with a program

I'm using computer craft 1.3
i just made this code and i keep getting this error

Bios:206: [string "3x3"] :24: '='
expected

local i
term.write("Enter Number: ")
  i = read()
   for i = 0, i do
    turtle.detect()
    if true then
	 turtle.dig()--1st layer
    end
    turtle.forward()
    turtle.turnRight()
    turtle.detect()
    if true then
	  turtle.dig()
    end
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.detect()
    if true then
	  turtle.dig()
    end
    turtle.detectUp()
    if true then
	  turtle.digUp
    end
    turtle.up()
    turtle.detect()
    if true then
	  turtle.dig()
    end
    turtle.turnRight()
    turtle.turnRight()
    turtle.detect()
    if true then
	  turtle.dig()
    end
    turtle.detectUp()
    if true then
	  turtle.digUp
	  end
    turtle.up()
    turtle.detect()
    if true then
	  turtle.dig()
    end
    turtle.turnLeft()
    turtle.turnLeft()
    turtle.detect()
    if true then
	  turtle.dig()
    end
    turtle.turnRight()
    turtle.down()
    turtle.down()
   end

	if true then
		  turtle.digUp
	end

you forgot the brackets there

local i
term.write("Enter Number: ")
  i = read()
   for i = 0, i do
	turtle.detect()
	if true then
		 turtle.dig()--1st layer
	end
	turtle.forward()
	turtle.turnRight()
	turtle.detect()
	if true then
		  turtle.dig()
	end
	turtle.turnLeft()
	turtle.turnLeft()
	turtle.detect()
	if true then
		  turtle.dig()
	end
	turtle.detectUp()
	if true then
		  turtle.digUp()
	end
	turtle.up()
	turtle.detect()
	if true then
		  turtle.dig()
	end
	turtle.turnRight()
	turtle.turnRight()
	turtle.detect()
	if true then
		  turtle.dig()
	end
	turtle.detectUp()
	if true then
		  turtle.digUp
		  end
	turtle.up()
	turtle.detect()
	if true then
		  turtle.dig()
	end
	turtle.turnLeft()
	turtle.turnLeft()
	turtle.detect()
	if true then
		  turtle.dig()
	end
	turtle.turnRight()
	turtle.down()
	turtle.down()
   end

EDIT: there are a few problems in the code as well

    turtle.detect()
    if true then
		  turtle.dig()
    end

will always dig. the correct usage is

    if turtle.detect() then
		  turtle.dig()
    end

OK thank you for the help. :P/>/>

This makes no sense

  i = read()
   for i = 0, i do

You give i a value and then you change it again to 0 if the first loop runs.

it isn't good coding procedure but it will probably work… now that you mention it I could actually use a similar technique to clean up a few scripts

You're kidding, right? It's super confusing, that's like the opposite of cleaning.

But yeah, it does work. Loop i is limited in scope to inside the loop, and doesn't start getting used until after "do". And I'm not really one to cast stones about confusing code.

ChunLing, on 20 October 2012 - 05:33 PM said:

You're kidding, right? It's super confusing, that's like the opposite of cleaning.

But yeah, it does work. Loop i is limited in scope to inside the loop, and doesn't start getting used until after "do". And I'm not really one to cast stones about confusing code.

lol I know. but in some situations it may help to avoid declaring too many variables. depends on how you use it

I generally try to reserve i, j, k, and v for use in the various for loops. And as long as you're using scope effectively, there is no too many variables.

Then again, I'm always going crazy with the tables, so I really don't tend to come up against problems of cluttered namespaces. It depends on individual style, I guess.

I use descriptive names for those vars. in a user system you use the username as the key and the password as the value so

local tUsers={KaoS='zxcv';Boris='6254837283'}
write('Username: ')
local user=read()
print('Password: ')
local pass=read()
for sUser,sPass in pairs(tUsers) do
  if sUser==user and sPass==pass then
    --login
  end
end

I know in this case I don't actually have to go through the entire table as I can just use the username to access the password but it was just to show you what I mean :)/>/>

I'm a big fan of tables too. you can use metatables to make incredible functions