docs: public static String TraToSimplified( String str )
      {
          StringBuffer sb = new StringBuffer();
          int idx;
          for ( int j = 0; j < str.length(); j++ ) {
              if ( (idx = TRASTR.indexOf(str.charAt(j))) != -1 ) {
                  sb.append(SIMSTR.charAt(idx));
              } else {
                  sb.append(str.charAt(j));
              }
          }
          return sb.toString();
      }