turtle.inspect() mining

I am trying to currently code a working efficient mine straight down, but I can't get the code working for the block blacklists

--Once the code starts working I will add a fuel check
local b=0
local ignore={"minecraft:dirt","minecraft:stone","minecraft:cobblestone","minecraft:gravel","minecraft:sand"}
local function valuable()
success,data=turtle.inspect()
for k,v in pairs(ignore) do
  if v~=data.name then
   return true
  else
   return false
  end
end
end
local function checkSurroundings()
for I=1,4 do
  if valuable() then
   turtle.dig()
  end
  turtle.turnLeft()
end
end
for I=1,2 do
turtle.digDown()
turtle.down()
b=b+1
end
turtle.select(15)
turtle.placeUp() --Place cobblestone over entry hole
turtle.select(1)
while true do
turtle.digDown()
if turtle.down() then
  b=b+1
else
  for I=1,b do
   b=b-1
  end
end
checkSurroundings()

end

Can you amazing people help me?

Minecraft version: 1.7.10 (Just incase the mod changed in versions)

local function valuable()
success,data=turtle.inspect()
for k,v in pairs(ignore) do
  if v~=data.name then
   --# don't return, let the loop continue
  else
	 return false
  end
end
return true --# loop ended,
end

there is a more efficient way to do this though

local ignore={["minecraft:dirt"] = true,["minecraft:stone"] = true,["minecraft:cobblestone"] = true,["minecraft:gravel"] = true,["minecraft:sand"] = true}
--# set the ignores as the keys, then for quick access trick later
local function valuable()
success,data=turtle.inspect()
  if ignore[data.name] then --# quick access trick: we have the name of the block now, if it's in the list we will get true for the if
   return false
  else
   return true
  end
end

Oh I see it only went through the iterator once because it returned a value?

Games_Arsenal96, on 11 May 2017 - 07:16 PM said:

Oh I see it only went through the iterator once because it returned a value?

correct

I am trying to make the same code Ben did for his lets play of ComputerCraft challenge but to use inspect instead of certain blocks in slots?

I got it working now I just need to work on the fuel check