Hello, I'm a beginner trying to write a simple Scheme interpreter to help understand Racket better. I try to mimic the results from the repl as best possible however in some cases I'm not sure how to reproduce them, this being one such case. It seems to imply that an identifier or something other than a boolean could begin with #t but I'm not sure. I tried this using Guile and got the opposite results: guile> (+ 3 1)#t+ 4 #t #<primitive-generic +> guile> (+ 3 1)#\t+ 4 ERROR: In procedure scm_lreadr: ERROR: #<unknown port>:2:1: unknown character name t+ ABORT: (read-error)
Currently, my naive repl will work for both characters and booleans but perhaps it shouldn't? Thanks On Mon, Jan 31, 2011 at 9:13 PM, qld3303 <[email protected]> wrote: > I'm not clear as to why the following occurs: > > > (+ 3 1)#t+ > 4 > readline-input::183: read: bad syntax `#t+' > > > (+ 3 1)#\t+ > 4 > #\t > #<procedure:+> > > Why doesn't it recognize that #t is a boolean value? >
_________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
