read_table v1.2

local m = peripheral.wrap("right")
local sensor = peripheral.wrap("top")
local players = sensor.getPlayerNames() -- This can be any function. The Target function to get table information.

m.setCursorPos(1,1)

-- added code for this function
for a, name in pairs(players) do
  print(name)
  t = sensor.getPlayerData(name) -- t for table since table is taken
-- Main Code
  for key, value in pairs(t) do
	for x, y in pairs(value) do -- if there are more nested tables copy, paste and edit key and values for this for statement as many times as needed
	  m.write(tostring(x)..": "..tostring(y))
	  m.setCursorPos(1,x+1)
	  if x > 40 then
		m.setCursorPos(17,x+1)
	  end
	end
  end
end

Its a simple code really. Its designed to look into tables provided by such functions as getTankInfo() and getPlayerData(). My problem is that after table 40 a boolean is presented and the code breaks: 'test:13: bad argument: table expected, got boolean. How would I go about this error? I think I need to do a separate if then else statement to read tables 1-40 and then in the else read booleans after 40 tables. what are your guy's thoughts?

I *think* this is what you're looking for…

if type(t) == "table" then
  ** do your loop **
else
  ** it's not a table **
end

replace 't' with 'value' or 'y' or whichever returned value you're having trouble with

-- added code for this function
for a, name in pairs(players) do
  print(name)
  t = sensor.getPlayerData(name) -- t for table since table is taken
-- Main Code
-- if there are more nested tables copy, paste and edit key and value
-- for this for statement as many times as needed
  for key, value in pairs(t) do
    for x, y in pairs(value) do
      if x < 41 then
        m.setCursorPos(1,x)
      else
        m.setCursorPos(21,x-39)
      end
      if x < 41 then
	    m.write(tostring(x)..": "..tostring(y))
	  else
        m.write(x ..": ".. y) -- value and tostring(value) also do not work
	  end
	end
  end
end

if I do it like this (or as you suggested dog) it still gives me the same error. Looking into the nbt data for the player might give me a clue as to what to do next here. Also, it gives me a second table 40 before with a different string just before the code breaks.

Apologies for the late reply. Please post your code showing how you used 'type' to identify the table. I'd like to see what you tried.

This may get split into a different topic at this point in my interest, but i created this part of read_table to try to get to the variables postion for a player to make sure I wasn't getting another peice of code in another program wrong. pd (my player detector) has been fixed so read_table is obsolete for now. my time is short so I won't have time to return to read_table until later, but! I'll just post my code here for people to see and use as they like.

Read_table pd version: http://pastebin.com/vLSPvH3M
Setup a 6x6 monitor before use

I've moddified my read_table for the specific use of looking into what a golden ticket has and I'm stumped at one bit:

http://pastebin.com/vLSPvH3M

when the program is run line 6 in the output doesn't appear. I've doubled checked my code and everything should be fine except when a is equal to 6 it doesn't want to run the for loop. I've added in "print("(".. a ..")") at the last minute just to verify this and it's printing (6) but not wanting to do the latter.

Line 6, in the output, contains a tabled defined by ench. I want to know what that is, but I can't get into it's table.

Threads merged.

I'm not sure if you fixed the first problem or not, But test and see if this works
Before you run this loop

for x, y in pairs( value ) do
    ...
end

test doing this

if type( value ) == "table" then
    for x, y in pairs( value ) do
        ...
    end
end

And for the second problem, try changing this loop from pairs

for a, name in pairs( players ) do
    ...
end

to ipairs

for a, name in ipairs( players ) do
    ...
end

Tamtam18_2, on 04 May 2014 - 03:01 AM said:

My problem is that after table 40 a boolean is presented and the code breaks: 'test:13: bad argument: table expected, got boolean.

You're getting that error because you're trying to pass a boolean to pairs(). Instead of manually adding extra loops you could use a recursive function similar to this.

function printTable(t)
  for k, v in pairs(t) do
	if(type(v) == "table") then
	  print(k)
	  printTable(v)
	else
	  print(k .. tostring(v))
	end
  end
end

(I removed stuff that's in the pastebin for readability so don't copypaste. Shouldn't be doing that anyway though ;)/>)
pastebin get vYteUqWG shows it working. Shouldn't cause a stack overflow unless your table's depth is > 256 so should be plenty. What's the max table depth anyway?

Tamtam18_2, on 09 May 2014 - 08:52 AM said:

when the program is run line 6 in the output doesn't appear.

Seems to show up fine for me. I only get the table expected error later. You sure that's the correct pastebin?