*/
  public static char toLowerCase(char c) {
    return isUpperCase(c) ? (char) (c ^ CASE_MASK) : c;
  }

  /**
   * Returns a copy of the input string in which all {@linkplain #isLowerCase(char) lowercase ASCII
   * characters} have been converted to uppercase. All other characters are copied without
   * modification.
   */
  public static String toUpperCase(String string) {
    int length = string.length();

        .isEqualTo(1);
    assertThat(
            Chars.indexOf(
                new char[] {(char) 2, (char) 3, (char) 2, (char) 3, (char) 4, (char) 2, (char) 3},
                new char[] {(char) 2, (char) 3, (char) 4}))
        .isEqualTo(2);
    assertThat(
            Chars.indexOf(
                new char[] {(char) 2, (char) 2, (char) 3, (char) 4, (char) 2, (char) 3, (char) 4},

    BufferedReader reader = source.openBufferedStream();
    assertTrue(source.wasStreamOpened());
    assertFalse(source.wasStreamClosed());

    StringWriter writer = new StringWriter();
    char[] buf = new char[64];
    int read;
    while ((read = reader.read(buf)) != -1) {
      writer.write(buf, 0, read);
    }
    reader.close();
    writer.close();

    assertTrue(source.wasStreamClosed());

            finally {

                String[] s = ((SmbFile)f).list();

                f.delete();
            }
        }
    }

    private static String repeat ( char c, int n ) {
        char chs[] = new char[n];
        for ( int i = 0; i < n; i++ ) {
            chs[ i ] = c;
        }
        return new String(chs);
    }

   */
  public static char toLowerCase(char c) {
    return isUpperCase(c) ? (char) (c ^ CASE_MASK) : c;
  }

  /**
   * Returns a copy of the input string in which all {@linkplain #isLowerCase(char) lowercase ASCII
   * characters} have been converted to uppercase. All other characters are copied without
   * modification.
   */
  public static String toUpperCase(String string) {
    int length = string.length();

              "Can't ignoreCase() since '%s' and '%s' encode different values",
              (char) upper,
              (char) lower);
          newDecodabet[lower] = decodeUpper;
        }
      }
      return new Alphabet(name + ".ignoreCase()", chars, newDecodabet, /* ignoreCase= */ true);
    }

    char encode(int bits) {
      return chars[bits];
    }

        hashFunction.newHasher().putUnencodedChars(string).hash());
  }

  static char randomLowSurrogate(Random random) {
    return (char)
        (Character.MIN_LOW_SURROGATE
            + random.nextInt(Character.MAX_LOW_SURROGATE - Character.MIN_LOW_SURROGATE + 1));
  }

  static char randomHighSurrogate(Random random) {
    return (char)
        (Character.MIN_HIGH_SURROGATE

        .isEqualTo(1);
    assertThat(
            Chars.indexOf(
                new char[] {(char) 2, (char) 3, (char) 2, (char) 3, (char) 4, (char) 2, (char) 3},
                new char[] {(char) 2, (char) 3, (char) 4}))
        .isEqualTo(2);
    assertThat(
            Chars.indexOf(
                new char[] {(char) 2, (char) 2, (char) 3, (char) 4, (char) 2, (char) 3, (char) 4},

        public Appendable append(@Nullable CharSequence csq, int start, int end)
            throws IOException {
          throw new IOException();
        }

        @Override
        public Appendable append(char c) throws IOException {
          throw new IOException();
        }
      };

  private static void checkResult(Joiner joiner, Iterable<Integer> parts, String expected) {

        return di - start;
    }
    public static String dec_utf8( byte[] src, int si, int slim ) throws IOException {
        char[] uni = new char[slim - si];
        int ui, ch;

        for( ui = 0; si < slim && (ch = src[si++] & 0xFF) != 0; ui++ ) {
            if( ch < 0x80 ) {
                uni[ui] = (char)ch;
            } else if((ch & 0xE0) == 0xC0 ) {
                if((slim - si) < 2 ) {
                    break;