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Feature #1684
closed
API to query the availability of a function
Start date:
2013-01-11
Due date:
% Done:
0%
Estimated time:
Legacy ID:
Applies to branch:
Fix Committed on Branch:
Fixed in Maintenance Release:
Platforms:
Description
It is currently possible to query the availability of an extension function in a known library, and the Configuration object exposes two such function libraries: the vendor functions and the integrated extension functions.
However, some functions couldn't be found in any of these libraries: e.g. saxon:line-number and saxon:column-number, tested with Saxon EE.
It would be convenient to have a general API on the Configuration object to query the availability of a function, independently of the function library it is registered in.
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