Function cursorTo

lib/internal/readline/callbacks.js:33–55

* moves the cursor to the x and y coordinate on the given stream

(stream, x, y, callback)

 */

function cursorTo(stream, x, y, callback) {
  if (callback !== undefined) {
    validateFunction(callback, 'callback');
  }

  if (typeof y === 'function') {
    callback = y;
    y = undefined;
  }

  if (NumberIsNaN(x)) throw new ERR_INVALID_ARG_VALUE('x', x);
  if (NumberIsNaN(y)) throw new ERR_INVALID_ARG_VALUE('y', y);

  if (stream == null || (typeof x !== 'number' && typeof y !== 'number')) {
    if (typeof callback === 'function') process.nextTick(callback, null);
    return true;
  }

  if (typeof x !== 'number') throw new ERR_INVALID_CURSOR_POS();

  const data = typeof y !== 'number' ? CSI`${x + 1}G` : CSI`${y + 1};${x + 1}H`;
  return stream.write(data, callback);
}

/**
 * moves the cursor relative to its current location