Regex split java-CodePudding

Good fellows, could you help me find a regex with split to separate the attributes of a string (txt file), the string is the following line:

{'title': 'The signal', 'description': 'Una crisis nerviosa. Un ataque de pánico en pleno sermón, 'img': '9b9f6e903588a16bf90eb86ff7b079ba.jpg', 'Format': 'physic book', 'Author': 'Young, wm. paul - jersak, bradley', 'Editorial': 'Diana', 'Year': '2021', 'Idiom': 'Español', 'Isbn': '9789584293817', 'Isbn13': '9789584293817'}{'titulo': 'Quemar el Miedo', 'descripcion': 'Este es el manifiesto escrito por el Colectivo LASTESIS. , 'img': 'f56123687ddc0167a0f4186612293435.jpg', 'Formato': 'Libro físico', 'Autor': '', 'Año': '2021', 'Idioma': 'Español', 'Isbn': '9789584293626', 'Isbn13': '9789584293626'}

I need to get the values of each element to be able to rebuild the object

public static boolean cargarlibros(){    
  File f = new File(FILENAME);
  FileReader reader;
  try {
    reader = new FileReader(f);
    BufferedReader buffr = new BufferedReader(reader);
    String registro; 
    while((registro = buffr.readLine()) != null){
      String[] datos = registro.split("\\{\\}");
      System.out.println(Arrays.toString(datos));                              
    }
    buffr.close();
    reader.close();
  } catch (IOException ex) {
    return false;
  }        
  return true;
}

CodePudding user response：

You could try to add and change quotes in order to convert your data to JSON, but that may be not trivial especially if the string contains apostrophes, and I think parsing it as is is easier. Your split attempt didn't work because the pattern "\\{\\}" would only split at {}, which isn't there. You could replace

      String[] datos = registro.split("\\{\\}");

with

      String[] datos = registro.replaceFirst("^\\{", "").split("}\\{|}$");
      for (var dato: datos)
      {
        String[] elems = dato.replaceFirst("^'", "").split("'?[:,] '|'$");
        Map<String, String> book = new LinkedHashMap<String, String>();
        for (int i = 0; i < elems.length; ) book.put(elems[i  ], elems[i  ]);
        …
      }

As you didn't say into what data structure you want to get the values of each element, I chose a Map.