assertThat(basicEscaper.escape("string with spaces")).isEqualTo("string%20with%20spaces");
    assertThat(plusForSpaceEscaper.escape("string with spaces")).isEqualTo("string+with+spaces");
    assertThat(spaceEscaper.escape("string with spaces")).isEqualTo("string with spaces");
  }

  /** Tests that if we add extra 'safe' characters they remain unescaped */
  public void testCustomEscaper() {

    assertUnicodeEscaping(e, "%F4%8F%BF%BF", '\uDBFF', '\uDFFF');

    assertThat(e.escape("")).isEqualTo("");
    assertThat(e.escape("safestring")).isEqualTo("safestring");
    assertThat(e.escape("embedded\0null")).isEqualTo("embedded%00null");
    assertThat(e.escape("max\uffffchar")).isEqualTo("max%EF%BF%BFchar");
  }

  // Helper to assert common expected behaviour of uri escapers.

    assertUnicodeEscaping(e, "%F4%8F%BF%BF", '\uDBFF', '\uDFFF');

    assertThat(e.escape("")).isEqualTo("");
    assertThat(e.escape("safestring")).isEqualTo("safestring");
    assertThat(e.escape("embedded\0null")).isEqualTo("embedded%00null");
    assertThat(e.escape("max\uffffchar")).isEqualTo("max%EF%BF%BFchar");
  }

  // Helper to assert common expected behaviour of uri escapers.

    assertThat(basicEscaper.escape("string with spaces")).isEqualTo("string%20with%20spaces");
    assertThat(plusForSpaceEscaper.escape("string with spaces")).isEqualTo("string+with+spaces");
    assertThat(spaceEscaper.escape("string with spaces")).isEqualTo("string with spaces");
  }

  /** Tests that if we add extra 'safe' characters they remain unescaped */
  public void testCustomEscaper() {

 * code point. An additional safe range is provided that determines whether code points without
 * specific replacements are to be considered safe and left unescaped or should be escaped in a
 * general way.
 *
 * <p>A good example of usage of this class is for HTML escaping where the replacement array

  private static final Escaper NULL_ESCAPER =
      new CharEscaper() {
        @Override
        public String escape(String string) {
          return checkNotNull(string);
        }

        @Override
        protected char @Nullable [] escape(char c) {
          // TODO: Fix tests not to call this directly and make it throw an error.
          return null;
        }
      };

  /**

   * characters unescaped, they would be escaped by the consumer at parse time, anyway.</a>)
   * Additionally, the escaper escapes the slash character ("/"). While slashes are acceptable in
   * URL paths, they are considered by the specification to be separators between "path segments."
   * This implies that, if you wish for your path to contain slashes, you must escape each segment
   * separately and then join them.
   *

 * {@code char} value. An additional safe range is provided that determines whether {@code char}
 * values without specific replacements are to be considered safe and left unescaped or should be
 * escaped in a general way.
 *
 * <p>A good example of usage of this class is for Java source code escaping where the replacement

cpovirk <******@****.***> 1721404771 -0700

private fun Buffer.startsWith(prefix: Byte): Boolean = !exhausted() && this[0] == prefix

/**
 * Reads a double-quoted string, unescaping quoted pairs like `\"` to the 2nd character in each
 * sequence. Returns the unescaped string, or null if the buffer isn't prefixed with a
 * double-quoted string.
 */
@Throws(EOFException::class)
private fun Buffer.readQuotedString(): String? {
  require(readByte() == '\"'.code.toByte())