lib/encoder: move definitions here and remove uint casts

lib/encoder/standard.go

@@ -7,9 +7,16 @@ package encoder
 // List of replaced characters:
 //     (0x00)  -> '␀' // SYMBOL FOR NULL
 //   / (slash) -> '／' // FULLWIDTH SOLIDUS
-const Standard = MultiEncoder(
-	EncodeZero |
-		EncodeSlash |
-		EncodeCtl |
-		EncodeDel |
-		EncodeDot)
+const Standard = (EncodeZero |
+	EncodeSlash |
+	EncodeCtl |
+	EncodeDel |
+	EncodeDot)
+
+// Base only encodes the zero byte and slash
+const Base = (EncodeZero |
+	EncodeSlash |
+	EncodeDot)
+
+// Display is the internal encoding for logging and output
+const Display = Standard