SearchEngineRegEx

  $engines = array(
    'Google' => array(
      'host_pattern_sql' => 'http://www.google.%',
      'host_pattern_preg' => '!google(\\.[a-z]+)+$!',
      'path_pattern' => '!^/(search|url)!',
      'query_variable' => 'q',
    ),
    'Yahoo!' => array(
      'host_pattern_sql' => 'http://%search.yahoo.com/%',
      'host_pattern_preg' => '!([a-z]+\\.)*search.yahoo.com!',
      'path_pattern' => '!^/search!',
      'query_variable' => 'p',
    ),
    'Live search' => array(
      'host_pattern_sql' => 'http://search.%.com/results.aspx%',
      'host_pattern_preg' => '!search\\.(live|msn)\\.com!',
      'path_pattern' => '!^/results.aspx!',
      'query_variable' => 'q',
    ),
    'Yandex' => array(
      'host_pattern_sql' => 'http://%yandex.ru/yandsearch%',
      'host_pattern_preg' => '!yandex.ru!',
      'path_pattern' => '!^/yandsearch!',
      'query_variable' => 'text',
    ),
    'Rambler' => array(
      'host_pattern_sql' => 'http://www.rambler.ru/srch%',
      'host_pattern_preg' => '!rambler.ru!',
      'path_pattern' => '!^/srch!',
      'query_variable' => 'words',
    ),
)