如何从 .lua 文件解析/读取特定数据？

Question

I am trying to read data from file.lua.
file.lua contains:

Settings = {
    {
        ["msg"] = "в ич об нид мдд/рдд",
        ["aut"] = "Lightmur",
        ["cha"] = "5. Поиск спутников",
    }, -- [1]
    {
        ["msg"] = "цлк25н ппал шп маг ршам рдру сова (осколки анрол) 5 слотов",
        ["aut"] = "Savagemode",
        ["cha"] = "5. Поиск спутников",
    }, -- [2]
    {
        ["msg"] = "В СА25 танк/хил/дд/рдд",
        ["aut"] = "Dralo",
        ["cha"] = "5. Поиск спутников",
    }, -- [3]
    {
        ["msg"] = "в ич об нид мдд/рдд",
        ["aut"] = "Lightmur",
        ["cha"] = "5. Поиск спутников",
    }, -- [4]
    {
        ["msg"] = "продам |cffa335ee|Hitem:36919:0:0:0:0:0:0:0:80|h[Багровый рубин]|h|rх6 по 120г",
        ["aut"] = "Аматин",
        ["cha"] = "2. Торговля: Город",
    }, -- [5]
}

How I'am able to read this file with java code? Where Settings is full log of messages. msg - message, aut - message author, cha - message channel
This is what I'm trying to use: my pom.xml , java code, and run result

<dependency>
      <groupId>com.googlecode.json-simple</groupId>
      <artifactId>json-simple</artifactId>
      <version>1.1.1</version>
</dependency>

JSONParser jsonParser = new JSONParser();

try (FileReader reader = new FileReader(filePath))
{
    //Read JSON file
    Object obj = jsonParser.parse(reader);

    JSONArray employeeList = (JSONArray) obj;
    System.out.println(employeeList);

    //Iterate over employee array
    //employeeList.forEach( emp -> parseEmployeeObject( (JSONObject) emp ) );

} 

//Run result:

Unexpected character (S) at position 2.
    at org.json.simple.parser.Yylex.yylex(Yylex.java:610)
    at org.json.simple.parser.JSONParser.nextToken(JSONParser.java:269)
    at org.json.simple.parser.JSONParser.parse(JSONParser.java:118)
    at org.json.simple.parser.JSONParser.parse(JSONParser.java:92)
    at Main.main(Main.java:21)

I want to get any advice what should I use. Because after I read this file I want to check what is in variable msg by just calling getMsg() method;
I cant read this in one string but how I can work with data?

File myObj = new File(filePath);
      Scanner myReader = new Scanner(myObj);
      while (myReader.hasNextLine()) {
      String data = myReader.nextLine();
      System.out.println(data);
}
myReader.close();

//result
Settings = {
    {
        ["msg"] = "в ич об нид мдд/рдд",
        ["aut"] = "Lightmur",
        ["cha"] = "5. Поиск спутников",
    }, -- [1]
    {
        ["msg"] = "цлк25н ппал шп маг ршам рдру сова (осколки анрол) 5 слотов",
        ["aut"] = "Savagemode",
        ["cha"] = "5. Поиск спутников",
    }, -- [2]
    {
        ["msg"] = "В СА25 танк/хил/дд/рдд",
        ["aut"] = "Dralo",
        ["cha"] = "5. Поиск спутников",
    }, -- [3]
    {
        ["msg"] = "в ич об нид мдд/рдд",
        ["aut"] = "Lightmur",
        ["cha"] = "5. Поиск спутников",
    }, -- [4]
    {
        ["msg"] = "продам |cffa335ee|Hitem:36919:0:0:0:0:0:0:0:80|h[Багровый рубин]|h|rх6 по 120г",
        ["aut"] = "Аматин",
        ["cha"] = "2. Торговля: Город",
    }, -- [5]
}

Process finished with exit code 0

Answer 1

Lua is a programming language, not a data language, and so the file should not be parsed , but instead executed .

You can write a Lua script, to execute this script and encode it as JSON.

• Start by installing luarocks with the Lua interpreter (luarocks for windows comes bundled with that, if on linux, install lua and luarocks using your packages manager).
• Install the json-lua library to encode the data as JSON:

luarocks install json-lua

• Write the following Lua script in script.lua :

local JSON = require("JSON") --The JSON library

local source = "file.lua"
local destination = "file.json"

dofile(source)

--Now after executing the file.lua script, the data has been stored in the global table Settings.

--Encode into JSON data.
local jsonData = JSON:encode_pretty(Settings)

--Open the destination file for writing.
local file = assert(io.open(destination, "w"))

--Write the JSON data.
assert(file:write(jsonData))

--Close the file.
file:close()

print("Wrote file.json successfully!")

• Place script.lua and file.lua in the same folder, and run script.lua from there:

lua script.lua

• The data should be encoded into JSON in the file file.json , now you can parse it under Java.