Expires            = "Expires"
	ContentLength      = "Content-Length"
	ContentLanguage    = "Content-Language"
	ContentRange       = "Content-Range"
	Connection         = "Connection"
	AcceptRanges       = "Accept-Ranges"
	AmzBucketRegion    = "X-Amz-Bucket-Region"
	ServerInfo         = "Server"
	RetryAfter         = "Retry-After"
	Location           = "Location"
	CacheControl       = "Cache-Control"

      Header(RESPONSE_STATUS, "404"),
      Header(RESPONSE_STATUS, "500"),
      Header("accept-charset", ""),
      Header("accept-encoding", "gzip, deflate"),
      Header("accept-language", ""),
      Header("accept-ranges", ""),
      Header("accept", ""),
      Header("access-control-allow-origin", ""),
      Header("age", ""),
      Header("allow", ""),
      Header("authorization", ""),
      Header("cache-control", ""),

		switch tc.TypeUrl {
		case IPMatcher:
			ip := protoconv.SilentlyUnmarshalAny[matcher.IPMatcher](tc)
			m = map[string]*matcher.Matcher_OnMatch{}
			for _, rm := range ip.GetRangeMatchers() {
				for _, r := range rm.Ranges {
					cidr := r.AddressPrefix
					pl := r.PrefixLen.GetValue()
					if pl != 32 && pl != 128 {
						cidr += fmt.Sprintf("/%d", pl)
					}
					m[cidr] = rm.OnMatch
				}
			}
		default:

            description: IPAddressPoolSpec defines the desired state of IPAddressPool.
            properties:
              addresses:
                description: A list of IP address ranges over which MetalLB has authority.
                  You can list multiple ranges in a single pool, they will all share
                  the same settings. Each range can be either a CIDR prefix, or an
                  explicit start-end range of IPs.

     *     <li>"e(G:A:V)" - predicate filter (leaves out G:A:V from range, if hit, V can be range)</li>
     * </ul>
     * Example filter expression: {@code "h(5);s;e(org.foo:bar:1)} will cause: ranges are filtered for "top 5" (instead
     * full range), snapshots are banned if root project is not a snapshot, and if range for {@code org.foo:bar} is
     * being processed, version 1 is omitted.
     *
     * @since 4.0.0

    }

    @Override
    public boolean matches(char c) {
      return c <= '\u007f';
    }
  }

  /** Implementation that matches characters that fall within multiple ranges. */
  private static class RangesMatcher extends CharMatcher {

    private final String description;
    private final char[] rangeStarts;
    private final char[] rangeEnds;

                    "typed_config": {
                      "@type": "type.googleapis.com/xds.type.matcher.v3.IPMatcher",
                      "range_matchers": [
                        {
                          "ranges": [
                            {
                              "address_prefix": "10.104.171.68",
                              "prefix_len": 32
                            }
                          ],

| HOST_PROBE_SNAT_IPV6 | "fd16:9254:7127:1337:ffff:ffff:ffff:ffff" | IPv6 link local ranges are designed to be collision-resistant by default, and so this probably never needs to be overridden |

## Sidecar Mode Implementation Details

		a.Reg = 0
		a.Index = r1
		a.Scale = int16(scale)
	}
}

// registerList parses an ARM or ARM64 register list expression, a list of
// registers in []. There may be comma-separated ranges or individual
// registers, as in [R1,R3-R5] or [V1.S4, V2.S4, V3.S4, V4.S4].
// For ARM, only R0 through R15 may appear.
// For ARM64, V0 through V31 with arrangement may appear.
//

    }

    @Override
    public boolean matches(char c) {
      return c <= '\u007f';
    }
  }

  /** Implementation that matches characters that fall within multiple ranges. */
  private static class RangesMatcher extends CharMatcher {

    private final String description;
    private final char[] rangeStarts;
    private final char[] rangeEnds;