is MappedRange.External -> {
          // Write the mapping.
          val mappingOffset: Int
          val mappedTo = range.mappedTo.utf8()
          val mappingIndex = mappingsBuffer.indexOf(mappedTo)
          if (mappingIndex == -1) {
            mappingOffset = mappingsBuffer.length
            mappingsBuffer.append(mappedTo)
          } else {
            mappingOffset = mappingIndex
          }

          // Write the range bytes.

        sourceCodePoint0.toInt(),
        sourceCodePoint1.toInt(),
        type,
        mappedTo.readByteString(),
      )
  }

  return SimpleIdnaMappingTable(result)
}

internal data class Mapping(
  val sourceCodePoint0: Int,
  val sourceCodePoint1: Int,
  val type: Int,
  val mappedTo: ByteString,
) {
  val section: Int
    get() = sourceCodePoint0 and 0x1fff80

    sourceCodePoint1: Int,
    mappedToCodePoints: List<Int>,
  ): Mapping =
    Mapping(
      sourceCodePoint0 = sourceCodePoint0,
      sourceCodePoint1 = sourceCodePoint1,
      type = TYPE_MAPPED,
      mappedTo =
        Buffer()
          .also {
            for (cp in mappedToCodePoints) {
              it.writeUtf8CodePoint(cp)
            }
          }.readByteString(),
    )

 *    119 : Ignored.
 *    120 : Valid.
 *    121 : Disallowed
 *    122 : Mapped inline to the sequence: [b2].
 *    123 : Mapped inline to the sequence: [b2a].
 *    124 : Mapped inline to the sequence: [b2, b3].
 *    125 : Mapped inline to the sequence: [b2a, b3].
 *    126 : Mapped inline to the sequence: [b2, b3a].
 *    127 : Mapped inline to the sequence: [b2a, b3a].
 *
 * The range goes until the beginning of the next range.

/**
 * Represents a single character mapping rule that defines how input characters are mapped to output characters
 * for text analysis and search processing. This class is used in character mapping dictionaries to transform
 * text during indexing and search operations.
 *
 * <p>Each mapping item consists of one or more input character sequences that are mapped to a single output

    @ValidateTypeFailure
    public Integer crudMode;

    /** Input terms (comma-separated) that will be mapped to the output term */
    @Required
    @Size(max = 1000)
    public String inputs;

    /** Output term that input terms will be mapped to */
    @Size(min = 1, max = 1000)
    public String output;

    /**

    mapped = InetAddresses.forString(mappedStr);
    assertThat(mapped).isNotInstanceOf(Inet6Address.class);
    assertThat(mapped).isEqualTo(InetAddress.getByName("192.168.0.1"));

    mappedStr = "0:00:000:0000:0:ffff:1.2.3.4";
    assertTrue(InetAddresses.isMappedIPv4Address(mappedStr));
    mapped = InetAddresses.forString(mappedStr);
    assertThat(mapped).isNotInstanceOf(Inet6Address.class);

		if err != nil {
			return nil, err
		}

		if m.mapped == nil {
			m.mapped = make([]byte, m.size)
			m.filled = make([]byte, m.size)
		}

		set := m.parityData[m.data]
		if set == nil {
			set = make(map[int][]byte)
		}
		set[idx] = b
		m.parityData[m.data] = set

		// Combine
		start := len(b) * idx
		if start >= len(m.mapped) {
			continue
		}

    /**
     * <p>The implementation supports indexed, nested and mapped properties.</p>
     * <ul>
     * <li>nested properties should be defined by a dot, i.e. "user.address.street"</li>
     * <li>indexed properties (java.util.List or array instance) should be contains <code>(\\w+)\\[(\\d+)\\]</code>
     * pattern, i.e. "user.addresses[1].street"</li>
     * <li>mapped properties should be contains <code>(\\w+)\\((.+)\\)</code> pattern,

 *   <dd>{@code 00 00 00 00 00 00 00 00 00 00 00 00 c0 a8 00 01}
 *   <dt>An IPv6 "IPv4 mapped" address, {@code "::ffff:192.168.0.1"}.
 *   <dd>{@code 00 00 00 00 00 00 00 00 00 00 ff ff c0 a8 00 01}
 * </dl>
 *
 * <p>A few notes about IPv6 "IPv4 mapped" addresses and their observed use in Java.
 *
 * <p>"IPv4 mapped" addresses were originally a representation of IPv4 addresses for use on an IPv6