Is there any way to pass an external variable to the main query when it
is running via an HTTP app server? I.e., making it possible to run

   define variable $x as xs:string external

   $x

without throwing an "undefined external variable error"?

(I know I can use HTTP request fields to pass "external variables". But
I have some code I'd like to be able to run without modification via
XDBC, which returns () for xdmp:get-request-field(), etc. So is there
any  mechanism of passing a run-time external variable to the
server that works the same way under either HTTP or XDBC app servers?)

David

--
David Sewell, Editorial and Technical Manager
ROTUNDA, The University of Virginia Press
PO Box 801079, Charlottesville, VA 22904-4318 USA
Courier: 310 Old Ivy Way, Suite 302, Charlottesville VA 22903
Email: [EMAIL PROTECTED]   Tel: +1 434 924 9973
Web: http://rotunda.upress.virginia.edu/
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