The SRFI-34 port is old and was defined to recognize `else` as an unbound identifier, compatible with the old `mzscheme` language.
I've pushed a repair to make `srfi/34` work with `racket` (but maintaining backward compatibility, too). Meanwhile, you can work around the problem by using `#t` instead of `else` (as you probably already realize). Thanks for the report! At Wed, 29 Jan 2014 00:20:14 +0900, 亀田馬志 wrote: > Hello. > > I'd like to use SRFI-34 on Racket, but it says else is not allowed > eventhough I copied and paseted sample codes stated in SRFI-34. > > > (require srfi/34) > > (guard (condition > (else > (display "condition: ") > (write condition) > (newline) > 'exception)) > (+ 1 (raise 'an-error))) > . else: not allowed as an expression in: else > > (guard (condition > (else > (display "something went wrong") > (newline) > 'dont-care)) > (+ 1 (raise 'an-error))) > . else: not allowed as an expression in: else > > > > Is there any reason I couldn't use 'else'? > > Thanx. > ____________________ > Racket Users list: > http://lists.racket-lang.org/users ____________________ Racket Users list: http://lists.racket-lang.org/users
