Cat <ny_baby@excite.com> wrote:
+---------------
| oh sorry, I am trying to write an infix parser that takes in a list of
| inputs. So, it can include numbers and operators and in the end variables.
| But if you enter 3+2 scheme recognizes it as a symbol so...
+---------------
Why not just read the input character-at-a-time with "read-char"?
Or if your Scheme has "read-line" (and your inputs are guaranteed
to be less than one line):
> (begin (read-char) ; throw away the NL at the end of this sexpr
(string->list (read-line)))
Hello 5*(3+4)-2
(#\H #\e #\l #\l #\o #\space #\5 #\* #\( #\3 #\+ #\4 #\) #\- #\2 #\space)
>
-Rob
-----
Rob Warnock, 41L-955 rpw3@sgi.com
Applied Networking http://reality.sgi.com/rpw3/
Silicon Graphics, Inc. Phone: 650-933-1673
1600 Amphitheatre Pkwy. PP-ASEL-IA
Mountain View, CA 94043