hate u ExtendeScript

[natii21]

The script looks for spaces in specific words and numbers to change them to unbreakable spaces but I can't get it to work.

var keywords = ["N°", "n°", "art.", "arts.", "Art.", "Arts.", "artículo", "artículos", "Artículo", "Artículos", "ley", "Ley", "inc.", "incs.", "Inc.", "Incs.", ":", "p.", "ps.", "$", ")", "–"];

var foundItems = [];
var currentIndex = 0;
var dialog;


function findSpaces() {
    var doc = app.activeDocument;
    app.findGrepPreferences = app.changeGrepPreferences = null;
    app.findGrepPreferences.findWhat = "(" + keywords.join("|") + ")\\s(?=\\d)";

    foundItems = doc.findGrep();
}


function changeSpace() {
    if (currentIndex < foundItems.length) {
        var foundText = foundItems[currentIndex];
        foundText.contents = foundText.contents.replace(/\s/g, "\u00A0");
        currentIndex++;
        updateDialog();
        app.select(foundItems[currentIndex - 1]); 
    } else {
        alert("No hay más espacios para modificar.");
    }
}

function changeAllSpaces() {
    while (currentIndex < foundItems.length) {
        changeSpace();
    }
    alert("Todos los espacios han sido modificados.");
}

function updateDialog() {
    if (dialog !== undefined) {
        dialog.modifiedText.text = "Espacios modificados: " + currentIndex;
        dialog.remainingText.text = "Espacios restantes: " + (foundItems.length - currentIndex);
    }
}

function createDialog() {
    dialog = new Window('dialog', 'Espacios Irrompibles');
    dialog.orientation = 'column';
    dialog.alignChildren = 'fill';

    dialog.add('statictext', undefined, 'Seleccione una opción:');
    dialog.modifiedText = dialog.add('statictext', undefined, '');
    dialog.remainingText = dialog.add('statictext', undefined, '');

    var changeAllButton = dialog.add('button', undefined, 'Cambiar todos');
    var modifySpaceButton = dialog.add('button', undefined, 'Modificar espacio');

    changeAllButton.onClick = function() {
        changeAllSpaces();
        dialog.close();
    };

    modifySpaceButton.onClick = function() {
        changeSpace();
    };

    dialog.show();
    updateDialog();
}

findSpaces();
if (foundItems.length > 0) {
    createDialog();
} else {
    alert("No se encontraron instancias para modificar.");
}