v1.17.1

FIXED:
* tplx/sprigx would throw errors on dnsx.IsPtr, because it returns a
  bool and net.IP instead of a boolen and optional error. Fixed by
  adding dnsx.IsPtrChk and using that instead.

netx/TODO

@@ -0,0 +1 @@
+- does IsAdd4Compat work properly with loopback ::1?

netx/dnsx/funcs.go

@@ -1,16 +1,16 @@
 package dnsx
 
 import (
-	`bytes`
-	`encoding/base32`
-	`fmt`
-	`math`
-	`net`
-	`net/netip`
-	`strings`
+	"bytes"
+	"encoding/base32"
+	"fmt"
+	"math"
+	"net"
+	"net/netip"
+	"strings"
 
-	`go4.org/netipx`
-	`r00t2.io/goutils/stringsx`
+	"go4.org/netipx"
+	"r00t2.io/goutils/stringsx"
 )
 
 /*
@@ -238,19 +238,19 @@ TXT records, etc. - not A/AAAA/CNAME, etc. - see RFC 8553 for details.
 See the following functions for allowing additional syntax/rule validation
 that have record-type-specific accommodations made:
 
-	* [IsFqdnDefinedTxt]
-	* [IsFqdnNsec3]
-	* [IsFqdnSrv]
-	* [IsFqdnWildcard]
+  - [IsFqdnDefinedTxt]
+  - [IsFqdnNsec3]
+  - [IsFqdnSrv]
+  - [IsFqdnWildcard]
 
 # RFC Coverage
 
 This function should conform properly to:
 
-	* RFC 952
-	* RFC 1034 and RFC 1035
-	* RFC 1123
-	* RFC 2181 (selectively, see above)
+  - RFC 952
+  - RFC 1034 and RFC 1035
+  - RFC 1123
+  - RFC 2181 (selectively, see above)
 
 preferring the most up-to-date rules where relevant (e.g. labels may start with digits, as per RFC 1123).
 It enforces/checks label and overall length limits as defined by RFC.
@@ -265,12 +265,12 @@ the caller must perform translation first
 
 To reiterate, IDN/IDNA:
 
-	* RFC 3490
-	* RFC 5890
-	* RFC 5891
-	* RFC 5892
-	* RFC 5893
-	* RFC 5894
+  - RFC 3490
+  - RFC 5890
+  - RFC 5891
+  - RFC 5892
+  - RFC 5893
+  - RFC 5894
 
 and Punycode (RFC 3492) *MUST* use their ASCII forms, NOT the localized/Unicode formats.
 
@@ -299,18 +299,18 @@ func IsFqdn(s string) (fqdn bool) {
 IsFqdnDefinedTxt is like [IsFqdn] but explicitly *only* allows fully-qualified
 RFC-defined TXT "subtypes":
 
-	* ACME DNS-01 (RFC 8555)
-	* BIMI (RFC draft [bimi])
-	* DKIM (RFC 6376,  RFC 8301, RFC 8463)
-	* DKIM ATPS (RFC 6541)
-	* DMARC (RFC 7489, RFC 9091, RFC 9616)
-	* MTA-STS (RFC 8461)
-	* TLSRPT (RFC 8460)
+  - ACME DNS-01 (RFC 8555)
+  - BIMI (RFC draft [bimi])
+  - DKIM (RFC 6376,  RFC 8301, RFC 8463)
+  - DKIM ATPS (RFC 6541)
+  - DMARC (RFC 7489, RFC 9091, RFC 9616)
+  - MTA-STS (RFC 8461)
+  - TLSRPT (RFC 8460)
 
 Note that the following TXT "subtypes" do not have special formatting in labels/name,
 and thus are not covered by this function:
 
-	* SPF (RFC 4408, RFC 7208)
+  - SPF (RFC 4408, RFC 7208)
 
 [bimi]: https://datatracker.ietf.org/doc/html/draft-brand-indicators-for-message-identification
 */
@@ -359,15 +359,15 @@ can't be 100% confirmed with certainty - only basic checks can be done.
 
 NSEC3 can be found via:
 
-	* RFC 5155
-	* RFC 6840
-	* RFC 6944
-	* RFC 7129
-	* RFC 8198
-	* RFC 9077
-	* RFC 9157
-	* RFC 9276
-	* RFC 9905
+  - RFC 5155
+  - RFC 6840
+  - RFC 6944
+  - RFC 7129
+  - RFC 8198
+  - RFC 9077
+  - RFC 9157
+  - RFC 9276
+  - RFC 9905
 
 At the time of writing, only one hashing algorithm (SHA-1) has been specified.
 However, because this function does not check against the IANA registration at runtime,
@@ -524,6 +524,22 @@ func IsPtr(s string) (isPtr bool, addr net.IP) {
 	return
 }
 
+// IsPtrAddr is like IsPtr but only returns the `addr` value.
+func IsPtrAddr(s string) (addr net.IP) {
+
+	_, addr = IsPtr(s)
+
+	return
+}
+
+// IsPtrChk is like IsPtr but only returns the `isPtr` value.
+func IsPtrChk(s string) (isPtr bool) {
+
+	isPtr, _ = IsPtr(s)
+
+	return
+}
+
 // commonFqdn is used to validate some rules common to all record names.
 func commonFqdn(s string) (isOk bool) {