useful XPath syntax for prop_set work

[briesenberg07]

compare form_order values for a given RT across prop_sets

collection('?select=*.xml')/
uwmaps:prop_set/uwmaps:prop/
uwmaps:sinopia/uwsinopia:implementation_set
[uwsinopia:institution = 'institution']
[uwsinopia:resource = 'resource']
[uwsinopia:format = 'format']
[uwsinopia:user = 'user']/uwsinopia:form_order

* Using fn:collection to query all files ending in .xml in the current directory. I ran this on a prop_set instance, which is alongside all the other prop_set instances, at the top level of map_storage.

[briesenberg07]

find all property IRIs which are...

included in either rdaWork:printMonograph, rdaWork:aggregated_printMonograph, or rdaWork:aggregating_printMonograph

reference

• fn:distinct-values: in Saxon docs, in XPath 3.1 Functions and Operators
• Union in Xpath in Saxon docs

distinct-values(collection('?select=*.xml')/uwmaps:prop_set/uwmaps:prop
[uwmaps:sinopia/uwsinopia:implementation_set
[uwsinopia:institution = 'WAU']
[uwsinopia:resource = 'rdaWork']
[uwsinopia:format = 'printMonograph' or 'aggregating_printMonograph' or 'aggregated_printMonograph']
[uwsinopia:user = 'CAMS']]/
(uwmaps:prop_iri/@iri [uwmaps:sinopia/uwsinopia:implementation_set]
|uwmaps:sinopia/uwsinopia:implementation_set/uwsinopia:multiple_prop/uwsinopia:property_selection/@property_iri)
)