Lua 嵌套 Json，如果编码单个出现或多个出现列表，则删除

我要做的事情是针对一个已解码为表格的 json_body，使用 cjson 将其解码为 json，我想通过可配置的值 conf.remove.json 删除给定元素。我觉得我非常接近了，但它仍然不起作用，有更好的方法吗？有一种安全的方法可以找到表的“深度”，然后像 conf.remove.json=I。 want.to.remove.this创建行为 json_table[I][want][to][remove][this]= nil，而不会抛出某种 NPE 吗？

local configRemovePath= {}
local configRemoveDepth= 0
local recursiveCounter = 1

local function splitString(inputstr)
        sep = "%."  --Split on .
        configRemovePath={}
        configRemoveDepth=0

            for str in string.gmatch(inputstr, "([^"..sep.."]+)") do
                configRemovePath[configRemoveDepth + 1] = str
                configRemoveDepth = configRemoveDepth + 1
        end
end

local function recursiveSearchAndNullify(jsonTable)
  for key, value in pairs(jsonTable) do --unordered search
    -- First iteration
    --Sample Json below, where conf.remove.json = data.id and nothing happened. conf.remove.json=data.id
    --{
    --"data": {
      --  "d": 2,
     --   "id": 1
    --}
        --}
    -- value = {"d": 2, "id": 1}, key = "data", configRemovePath[recursiveCounter] = "data" , configRemovePath ['data','id'] , configRemoveDepth = 2

    if(type(value) == "table" and value == configRemovePath[recursiveCounter]  and recursiveCounter < configRemoveDepth) then --If the type is table, the current table is one we need to dive into, and we have not exceeded the configurations remove depth level
      recursiveCounter = recursiveCounter + 1
      jsonTable = recursiveSearchAndNullify(value)
    else
      if(key == configRemovePath[recursiveCounter] and recursiveCounter == configRemoveDepth) then --We are at the depth to remove and the key matches then we delete.
          for key in pairs (jsonTable) do --Remove all occurances of said element
                jsonTable[key] = nil
                end
      end
    end
  end
  return jsonTable
end

for _, name in iter(conf.remove.json) do
  splitString(name)
  if(configRemoveDepth == 0) then
      for name in pairs (json_body) do
            json_body[name] = nil
            end
  else
    recursiveCounter = 1 --Reset to 1 for each for call
    json_body = recursiveSearchAndNullify(json_body)
  end
end

感谢任何协助，这是我第一天使用 Lua，所以我还很新手。