3 Nov
2022
3 Nov
'22
3 p.m.
Hello --
You can (I think) test if some attribute value is an RFC 4122 UUID by using a regular expression:
let $regexp as xs:string := '^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-5][0-9a-fA-F]{3}-[089abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$'
for $uuid in //@GUID let $value as xs:string := $uuid/string() where not(matches($value,$regexp)) return $value
Is there a better way to do this?
thanks! Graydon