Load list from txt in c#

Question

I have the following problem, I get the data from a txt that I need to return in the form of List<List<string>>, but I can only catch from the txt one string [] linha, so I was adding string by string in my list, it works, but every time the new list is added, the same values are added once more in the same list, it follows the code.

   public List<List<string>> carregaHistoria( string nomeHistoria ){

      List<List<string>> historia = new List<List<string>> () {} ;

      List<string> listaIntermediaria = new List<string>(){};

      FileInfo theSourceFile =
            new FileInfo ( Application.persistentDataPath + "/" + nomeHistoria + ".txt");

      StreamReader reader = theSourceFile.OpenText();

      string text;

      string [] linha;

      do
      {
         linha = reader.ReadLine().Split('|');

         text = reader.ReadLine();

         for(int j = 0; j < linha.Length ; j++){

            listaIntermediaria.Add(linha[j]) ;
         }

         historia.Add( listaIntermediaria );

         //listaIntermediaria.Clear();

      } while (text != null);

      return historia;
   } 

Example of what happens to make it clearer: if in my txt I have:

"alguma coisa|outra coisa"
"mais uma coisa|mais outra coisa"
"que coisa|mais coisa"

in my final list I will have all the lines in the first position of the list, the first two lines in the second position, and only the first line in the third position of the list, that was the result I got. And I tried to add the command listaIntermediaria.Clear();, but then the list is completely empty all the time.

Answer 1

A minimal example would be:

List<List<string>> lista = new List<List<string>>();
lista.Add("1|2|3".Split("|").ToList());

i.e., in the text found in each line I would do the split and finally the method ToList() to add to List<List<string>>.

In your code you use something like this:

public List<List<string>> carregaHistoria( string nomeHistoria )
{
    List<List<string>> historia = new List<List<string>>();

    FileInfo theSourceFile = 
           new FileInfo ( Application.persistentDataPath + "/" + nomeHistoria + ".txt");

    using (StreamReader reader = theSourceFile.OpenText())
    {

        string line;

        while ((line = reader.ReadLine()) != null)
        {
            historia.Add(line.Split('|').ToList());
        }   

    }

    return historia;

}