v1.16.9

ADDED:
* netx.IsPub
* encodingx/hexx

Rest are mostly small corrections and docs

iox/funcs_ctxio.go

@@ -26,6 +26,10 @@ func (c *CtxIO) GetChunkLen() (size uint) {
 	return c.l.GetChunkLen()
 }
 
+func (c *CtxIO) Len() (unread int) {
+	return c.buf.Len()
+}
+
 func (c *CtxIO) Read(p []byte) (n int, err error) {
 
 	var nr int64

iox/types.go

@@ -147,6 +147,17 @@ type (
 		ContextReader
 		ContextWriter
 	}
+
+	/*
+		LenReader allows one to read bytes (conforming to [io.Reader]),
+		and also provides a Len() method which returns an int of remaining unread bytes.
+		[bytes.Buffer] and [bytes.Reader] conforms to this, but see [CtxIO] for
+		a package-provided type.
+	*/
+	LenReader interface {
+		io.Reader
+		Len() (unread int)
+	}
 )
 
 type (
@@ -172,6 +183,7 @@ type (
 			* [ChunkReadWriter]
 			* [ContextReadWriter]
 			* [SizedCopyBufferer]
+			* [LenReader]
 
 		Unlike [XIO], it must be non-nil (see [NewCtxIO]) since it maintains state
 		(though technically, one does not need to call [NewCtxIO] if they call