--- /tmp/r_5.1	2023-11-16 19:47:30.321162662 +0100
+++ /tmp/r_5.3	2023-11-16 19:47:22.221153534 +0100
@@ -2,23 +2,23 @@
 <arr[0]> (type:number) (isarray:0)
 <arr[1]> (type:strnum) (isarray:0)
 <arr[2]> (type:string) (isarray:0)
-<arr[3]> (type:unassigned) (isarray:0)
+<arr[3]> (type:untyped) (isarray:0)
 <arr[4]> (type:regexp) (isarray:0)
 ¿val? (type:untyped) (isarray:0)
 * again...
 <arr[0]> (type:number) (isarray:0)
 <arr[1]> (type:strnum) (isarray:0)
 <arr[2]> (type:string) (isarray:0)
-<arr[3]> (type:unassigned) (isarray:0)
+<arr[3]> (type:untyped) (isarray:0)
 <arr[4]> (type:regexp) (isarray:0)
 ¿val? (type:untyped) (isarray:0)
 * print also `invented` value
 <arr[0]> (type:number) (isarray:0)
 <arr[1]> (type:strnum) (isarray:0)
 <arr[2]> (type:string) (isarray:0)
-<arr[3]> (type:unassigned) (isarray:0)
+<arr[3]> (type:untyped) (isarray:0)
 <arr[4]> (type:regexp) (isarray:0)
-<> (type:untyped) (isarray:0)
+<> (type:unassigned) (isarray:0)
 * print `a` values
 arr[0] = <2>)
 arr[1] = <1>)
@@ -30,16 +30,17 @@
 <arr[0]> (type:number) (isarray:0)
 <arr[1]> (type:strnum) (isarray:0)
 <arr[2]> (type:string) (isarray:0)
+<arr[3]> (type:string) (isarray:0)
 <arr[4]> (type:regexp) (isarray:0)
 <> (type:unassigned) (isarray:0)
 
 * b[0],b[1] (untyped|unassigned)
-b[0]: (type:unassigned) (isarray:0)
-b[1]: (type:unassigned) (isarray:0)
+b[0]: (type:untyped) (isarray:0)
+b[1]: (type:untyped) (isarray:0)
 * printf b[0] with format %s gives: <>
 * printf b[1] with format %d gives: <0>
-b[0]: (type:unassigned) (isarray:0)
-b[1]: (type:unassigned) (isarray:0)
+b[0]: (type:string) (isarray:0)
+b[1]: (type:untyped) (isarray:0)
 
 * invented2...
 invented2 (type:untyped) (isarray:0)