> listextract: fail
> Failed: "extract" failed and "fail" requested
>
+> sort: 1:2:3:4
+> sort: 4,3,2,1
+> sort: a:aa:B:c
+> sort: 10 smtp.ex.com:100 r2.ex.com:666 r99.ex.com
+> sort: 10,smtp.ex.com:100,r2.ex.com:666,r99.ex.com
+> sort: ""
+>
> # Tests with iscntrl() and illegal separators
>
> map: 'a'
> 5>3m: n
> Failed: invalid integer "3z "
> Failed: integer expected but "a" found
+> Failed: integer expected but "${substr_2_2:65535}" found
>
> >0: n
> =: y