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Wolfgang Hukriede <whukriede@ifm.uni-kiel.de> writes: > > Consider the following: > > > > hjstein@bacall:~$ guile > > guile> (eq? (string->symbol "-a") '-a) > > #t > > guile> (eq? (string->symbol "-b") '-b) > > #t > > guile> (eq? (string->symbol "-i") '-i) > > #f > > > Is this expected behavior for an R4RS scheme which supports complex > > number? > > Yes. Since (number? '-i) ==> #t > > > If so, it's a real pain in the ass for command line > > processing... > > You need to compare strings. You will have to use equal? or string=?, > because eq? is not usable with strings. Afait, -a and -b aren't > portable identifiers either. See the report. That's annoying because case uses eq?. -- Harvey J. Stein BFM Financial Research hjstein@bfr.co.il