This code sample is adapted from Clifford B. Anderson and Joseph C. Wicentowski, XQuery for Humanists (College Station: Texas A&M University Press, 2020), 254. Download this code sample in its raw form. View the source on GitHub.

(: This function returns a URL (as a string) to a resource;
: resources are always made available as integers in the form:
:, etc. :)
declare function local:generate-uri($resource as xs:integer?) as xs:string {
    "" || xs:string($resource)