Automatically parse list of google geocoder countries?

Also, I was trying to think of how to parse the list of supported countries from the spreadsheet available at http://gmaps-samples.googlecode.com/svn/trunk/mapcoverage_filtered.html, but the problem I ran into is that the ISO country codes are not built in. For example, I was thinking we could do something like:

  $query = array(
    'sv' => 'geocoding==yes',  // Only select rows where the geocoding column is identical to 'yes'.
  );

  $url = url('http://spreadsheets.google.com/feeds/list/p9pdwsai2hDMsLkXsoM05KQ/default/public/values', array(
    'query' => $query,
    'external' => TRUE,
  ));

  $http_reply = drupal_http_request($url);

  $status_code_match = array();
  preg_match('/<code>(.*)<\/code>/', $http_reply->data, $status_code_match);
  $status_code = $status_code_match[1];
  if ($status_code != 200) {
    return NULL;
  }
  
  // Unfortunately only the country names are available in the spreadsheet, not the ISO country codes.