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Luis Carvalho wrote:

if ((not disp) or (table.getn(disp)==0)) then
  do stuff
end


in Lua 5.1 becomes

if not disp or not next(disp) then
  -- do stuff
end

and


for i,d in disp do
  do things
end


becomes

for i,d in pairs(disp) do
  -- do stuff
end

or

for i,d in next, disp do
  -- do stuff
end

Cheers,
luis.
Thanks. For some reason 5.0 accepts the (not disp and not next(disp)), but it still doesn't like the alternatives in the for statement. Recognizes that they are valid calls, but still says it is expecting a table value for disp but that disp is nil. Odd thing is that it gives this error even if the table has a value.