public function generate()
{
  $files = $this->getContentFrom($this->directoryInput, true);

  foreach($files as & $file)
  {
    if(in_array($file['extension'], $this->extensions))
    {
      $lines = file($file['path']);

      $file['lines'] = [];

      foreach($lines as $j => & $line)
      {
        $file['lines'][$j] = 0;

        for($i = 0; $i < 40; $i++)
        {
          if(isset($line[$i]) && $line[$i] == ' ')
          {
            $file['lines'][$j]++;
          }
          else
          {
            break;
          }
        }

        $a = floor($file['lines'][$j] / $this->spacesInput);

        if($a >= 1)
        {
          @$line = str_repeat(' ', $this->spacesOutput * $a).str_repeat(' ', $file['lines'][$j] - ($this->spacesInput * $a)).ltrim($line);
        }
      }

      var_dump($lines);
    }
  }

  var_dump($files);
}