static public Iso639 find(String lang){
  Iso639 rslt=(Iso639)all.get(lang);
  if (rslt == null) {
    if (lang != null && lang.compareTo("qaa") >= 0 && lang.compareTo("qtz") <= 0 && lang.length() == 3) {
      return new Iso639("Reserved for local use",null,lang,lang,LT_LOCAL_USE);
    }
  }
  return rslt;
}

static public Iso639 find ( String lang ) { Iso639 rslt = ( Iso639 ) all . get ( lang ) ; if ( rslt == null ) { if ( lang != null && lang . compareTo ( "qaa" ) >= 0 && lang . compareTo ( "qtz" ) <= 0 && lang . length ( ) == 3 ) { return new Iso639 ( "Reserved for local use" , null , lang , lang , LT_LOCAL_USE ) ; } } return rslt ; }
look an iso - 639 code up in the list .
