doTestTrimTrailingFrom("x-x-", "x-x");
    doTestTrimTrailingFrom("x-xx", "x-xx");
    doTestTrimTrailingFrom("x-x--xx---x----x", "x-x--xx---x----x");
    // additional testing using the doc example
    assertEquals("abacat", anyOf("ab").trimTrailingFrom("abacatbab"));
  }

  private void doTestTrimTrailingFrom(String in, String out) {
    // Try a few different matchers which all match '-' and not 'x'

    doTestTrimTrailingFrom("x-x-", "x-x");
    doTestTrimTrailingFrom("x-xx", "x-xx");
    doTestTrimTrailingFrom("x-x--xx---x----x", "x-x--xx---x----x");
    // additional testing using the doc example
    assertEquals("abacat", anyOf("ab").trimTrailingFrom("abacatbab"));
  }

  private void doTestTrimTrailingFrom(String in, String out) {
    // Try a few different matchers which all match '-' and not 'x'

   * the end of the string. For example:
   *
   * {@snippet :
   * CharMatcher.anyOf("ab").trimTrailingFrom("abacatbab")
   * }
   *
   * ... returns {@code "abacat"}.
   */
  public String trimTrailingFrom(CharSequence sequence) {
    int len = sequence.length();
    for (int last = len - 1; last >= 0; last--) {
      if (!matches(sequence.charAt(last))) {

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"terdiri", "dong", "dulu", "enggak", "enggaknya", "entah", "entahlah", "terhadap", "terhadapnya", "hal", "hampir", "hanya", "hanyalah", "harus", "haruslah", "harusnya", "seharusnya", "hendak", "hendaklah", "hendaknya", "hingga", "sehingga", "ia", "ialah", "ibarat", "ingin", "inginkah", "inginkan", "ini", "inikah", "inilah", "itu", "itukah", "itulah", "jangan", "jangankan", "janganlah", "jika", "jikalau", "juga", "justru", "kala", "kalau", "kalaulah", "kalaupun", "kalian", "kami", "kamilah", "kamu", "kamulah",...