[plt-scheme] thunk-failed? with exceptions

>>>>> "Robert" == Robert Pierson <fried_flagrum at yahoo.com> writes:

Robert> [Please handle PLT Scheme list administrative tasks through the Web:
Robert>    http://list.cs.brown.edu/mailman/listinfo/plt-scheme]

Robert> Hello all,

Robert> How can I implement Oleg's thunk-failed? procedure
Robert> (below) in PLT that will return #t for things such as 

You *do* know there's a complete port of SSAX/SXML at the SourceForge
site, right?  (Along with an implementation of THUNK-FAILED?)

-- 
Cheers =8-} Mike
Friede, Völkerverständigung und überhaupt blabla