How do I fix charset problems in .gs script?

Question

I have a problem with charsets.

I parsed a csv file in google-app-engine and I\'m posting to an uiapp table. But I checked special characters like áéíóú and those are

Answer 1

I found it, we need to get the content of the file first with a Blob object. This function is the one I use to parse some csv info into an array:

function parsedCSV(){
  
 //searching the file. This gets only one file in var origen
  var listaArchivos = DocsList.getFolderById('XXXXXXX').getFiles()
  
  for (var i = 0; i < listaArchivos.length; i++) {
    if (listaArchivos[i].getName() == 'baul.csv'){
      var origen = listaArchivos[i];
  };
}

// HERE IS THE GOOD DEFINITION OF CHAR:
var texto2= origen.getBlob().getDataAsString('ISO-8859-1');
// I put all the corrected text in an array

var arra = Utilities.parseCsv(texto2,";");
return(arra);
}

This is the solved thing: https://script.google.com/macros/s/AKfycbyHa-bLWBHBr3qifbvzxecqGgGUYX8mhyo-TKoyfGvy/exec

The trick:

var textVariableName = fileObjectVariableName.getBlob().getDataAsString('ISO-8859-1');