potx misses some translated strings

A second revision shows me why the strings was not extracted. All the missing strings have the " character in it.
It's seems as potx doesn't converts the " character to \" when extracts the strings.

The problem is that potx doesn't extract the translated strings when they have any " character.

As you can see, the "By default..." was extracted, but the translated one doesn't.
For the original string potx extract it ok and converts the " characters to \" but doesn't for the translated.

No luck :(

I edit the potx.inc callin stripcslashes() before _potx_translation_export() and the bug is still here.
The only place where I edit in the potx.inc file is the _potx_build_files function:

function _potx_build_files($string_mode = POTX_STRING_RUNTIME, $build_mode = POTX_BUILD_SINGLE, $force_name = 'general',  $save_callback = '_potx_save_string', $version_callback = '_potx_save_version', $header_callback = '_potx_get_header', $template_export_langcode = NULL, $translation_export_langcode = NULL, $api_version = POTX_API_6) {
  global $_potx_store;

  // Get strings and versions by reference.
  $strings  = $save_callback(NULL, NULL, 0, $string_mode);
  $versions = $version_callback();

  // We might not have any string recorded in this string mode.
  if (!is_array($strings)) {
    return;
  }

  foreach ($strings as $string => $file_info) {
    // Build a compact list of files this string occured in.
    $occured = $file_list = array();
    foreach ($file_info as $file => $lines) {
      $occured[] = "$file:". join(';', $lines);
      if (isset($versions[$file])) {
        $file_list[] = $versions[$file];
      }
    }

    // Mark duplicate strings (both translated in the app and in the installer).
    $comment = join(" ", $occured);
    if (strpos($comment, '(dup)') !== FALSE) {
      $comment = '(duplicate) '. str_replace('(dup)', '', $comment);
    }
    $output = "#: $comment\n";

    // File name forcing in single mode.
    if ($build_mode == POTX_BUILD_SINGLE) {
      $file_name = $force_name;
    }
    // Store .info file strings either in general.pot or the module pot file,
    // depending on the mode used.
    elseif (strpos($comment, '.info')) {
      $file_name = ($build_mode == POTX_BUILD_CORE ? 'general' : str_replace('.info', '.module', $file_name));
    }
    // Else if occured more than once, store in general.pot.
    else {
      $file_name = (count($occured) > 1 ? 'general' : $file);
    }

    if (strpos($string, "\0") !== FALSE) {
      // Plural strings have a null byte delimited format.
      list($singular, $plural) = explode("\0", $string);
      $output .= "msgid \"$singular\"\n";
      $output .= "msgid_plural \"$plural\"\n";
      if (isset($translation_export_langcode)) {
        //Added for bug http://drupal.org/node/201253
        stripcslashes($singular);
        //End of add.
        $output .= _potx_translation_export($translation_export_langcode, $singular, $plural, $api_version);
      }
      else {
        $output .= "msgstr[0] \"\"\n";
        $output .= "msgstr[1] \"\"\n";
      }
    }
    else {
      // Simple strings.
      $output .= "msgid \"$string\"\n";
      if (isset($translation_export_langcode)) {
        //Added for bug http://drupal.org/node/201253
        stripcslashes($string);
        //End of add.
        $output .= _potx_translation_export($translation_export_langcode, $string, NULL, $api_version);
      }
      else {
        $output .= "msgstr \"\"\n";
      }
    }
    $output .= "\n";

    // Store the generated output in the given file storage.
    if (!isset($_potx_store[$file_name])) {
      $_potx_store[$file_name] = array(
        'header'  => $header_callback($file_name, $template_export_langcode, $translation_export_langcode, $api_version),
        'sources' => $file_list,
        'strings' => $output,
        'count'   => 1,
      );
    }
    else {
      // Maintain a list of unique file names.
      $_potx_store[$file_name]['sources']  = array_unique(array_merge($_potx_store[$file_name]['sources'], $file_list));
      $_potx_store[$file_name]['strings'] .= $output;
      $_potx_store[$file_name]['count']   += 1;
    }
  }
}

:$

Great! Now works ok. Thanks :)
New version of potx.inc attached and ready to be comitted.