Re: [basex-talk] Fwd: Securing All Endpoints

Hi Christian - thanks for the explanation. Adam On Tue, Jan 26, 2021 at 6:26 PM Christian Grün <christian.gruen@gmail.com> wrote:

Hi Adam,

...

let $vbFailure1 := ($perm?authorization != 'example' or exists( $perm?authorization )=false())

If you want, you can simplify this to:

let $vbFailure1 := not($perm?authorization = 'example')

If $perm?authorization yields no item (i.e., an “empty sequence”), the comparison () != 'example' will give you false, because there is no item on the left-hand side of the comparison that matches 'example'.

Hope this helps, Christian