+ if query[depth] == nil or key == query[depth] then
+ if depth == maxdepth then -- Result
+ local result = {}; -- Collect keys forming path to result
+ for i = 1, depth do
+ result[i] = keys[i];
+ end
+ result[depth+1] = value;
+ return unpack(result, 1, depth+1);
+ elseif type(value) == "table" then
+ t_insert(stack, value); -- Descend