}

  /**
   * Returns a splitter that considers any subsequence matching {@code pattern} to be a separator.
   * For example, {@code Splitter.on(Pattern.compile("\r?\n")).split(entireFile)} splits a string
   * into lines whether it uses DOS-style or UNIX-style line terminators.
   *
   * @param separatorPattern the pattern that determines whether a subsequence is a separator. This
   *     pattern may not match the empty string.

  }

  /**
   * Returns a splitter that considers any subsequence matching {@code pattern} to be a separator.
   * For example, {@code Splitter.on(Pattern.compile("\r?\n")).split(entireFile)} splits a string
   * into lines whether it uses DOS-style or UNIX-style line terminators.
   *
   * @param separatorPattern the pattern that determines whether a subsequence is a separator. This
   *     pattern may not match the empty string.

                public int length() {
                    return name.length();
                }

                @Override
                public CharSequence subSequence(final int start, final int end) {
                    return name.subSequence(start, end);
                }

            };
        }

        /**
         * @return CharSequence
         */
        public static CharSequence aaa() {

      return length;
    }

    @Override
    public char charAt(int index) {
      return chunks.get(index >> chunkShift).charAt(index & chunkMask);
    }

    @Override
    public CharSequence subSequence(int start, int end) {
      throw new UnsupportedOperationException();
    }

    @Override
    public String toString() {
      StringBuilder sb = new StringBuilder(length);

                public int length() {
                    return name.length();
                }

                @Override
                public CharSequence subSequence(final int start, final int end) {
                    return name.subSequence(start, end);
                }

            };
        }

        /**
         * @return CharSequence
         */

    assertThat(matcher.replaceFrom(s, "ZZ")).isEqualTo(Strings.repeat("ZZ", s.length()));
    assertThat(matcher.trimFrom(s)).isEqualTo("");
    assertEquals(s.length(), matcher.countIn(s));
  }

  // Kotlin subSequence()/replace() always return new strings, violating expectations of this test
  @J2ktIncompatible
  public void testGeneral() {
    doTestGeneral(is('a'), 'a', 'b');
    doTestGeneral(isNot('a'), 'b', 'a');

    int p = 0;
    while (p < maxPrefixLength && a.charAt(p) == b.charAt(p)) {
      p++;
    }
    if (validSurrogatePairAt(a, p - 1) || validSurrogatePairAt(b, p - 1)) {
      p--;
    }
    return a.subSequence(0, p).toString();
  }

  /**
   * Returns the longest string {@code suffix} such that {@code a.toString().endsWith(suffix) &&

    int p = 0;
    while (p < maxPrefixLength && a.charAt(p) == b.charAt(p)) {
      p++;
    }
    if (validSurrogatePairAt(a, p - 1) || validSurrogatePairAt(b, p - 1)) {
      p--;
    }
    return a.subSequence(0, p).toString();
  }

  /**
   * Returns the longest string {@code suffix} such that {@code a.toString().endsWith(suffix) &&

            int codePoint = Character.codePointAt(input, i);
            if (codePoint == c) {
              // fall back to JDK getBytes instead of trying to handle invalid surrogates ourselves
              putBytes(input.subSequence(i, utf16Length).toString().getBytes(charset));
              return this;
            }
            i++;
            update(4, codePointToFourUtf8Bytes(codePoint));
          }
        }
        return this;

        break;
      }
    }
    for (last = len - 1; last > first; last--) {
      if (!matches(sequence.charAt(last))) {
        break;
      }
    }

    return sequence.subSequence(first, last + 1).toString();
  }

  /**
   * Returns a substring of the input character sequence that omits all matching BMP characters from
   * the beginning of the string. For example:
   *