> # lookups that are required in all cases.
>
> CALLER
+> postmaster: CALLER
>
> ==X@Y
> ==*
> ==*@Z
> ==*
>
+> x@y ==X@Y
+> * ==*
+> *@z ==*@Z
+> * ==*
+>
> data for a.b.c.d
> failed x.y.z
> data for *.p.q
> Failed: "lookup" failed and "fail" requested
> data for *
>
+> a.b.c.d: data for a.b.c.d
+> failed x.y.z
+> *.p.q: data for *.p.q
+> *.p.q: data for *.p.q
+> *.p.q: data for *.p.q
+> Failed: "lookup" failed and "fail" requested
+> *: data for *
+>
> q1: "abc"
> q2: "xyz":
> q3: "pqr" :
> q6: "white space"
> q7: "b\\s"
>
+> q1: abc "abc"
+> q2: xyz: "xyz":
+> q3: pqr : "pqr" :
+> q4: a:b "a:b" abc continued data (make sure not key)
+> q5: "quoted" "\"quoted\""
+> q6: white space "white space"
+> q7: b\s "b\\s"
+>
> abc: abc
> a.b.c: *.b.c
> ab.c: *b.c