Hi, That would not be considered an "example" for at least two reasons. Do you see why?
On Nov 9, 2010 12:17 PM, "Peter Breitsprecher" <pkbre...@lakeheadu.ca> wrote: As an example, I want have most of the functions for Plus, Minus already written. Here is the code for it. (define (plus num1 num2) (+ num1 num2)) That is childs stuff... Here is where I am having the problem, and please keep in mind I am new to DrRacket... If my program accepts input such as (plus 13 5) I need to parse it so that I know what it is asking for. If It is a left parent, then I need to move on, if it is a right parent, move on to the next character, once i get to the next character I can see it is an alphanumeric character, but then I need to somehow read the whole word, so that I can store that value in a variable so that I can read the next number. If the numbers are single digits, it is easy, because they are only one charater each and read-char works perfect, but I need something like a read-word, or read-number and I can't seem to figure out how to do it. So really I need to know how do I read the words when there are characters present, and read the whole numbers when there is a number present. On 9 November 2010 15:00, John Clements <cleme...@brinckerhoff.org> wrote: > > > On Nov 9, 2010, a... -- Kurt Breitsprecher (807) 474-9601 pkbre...@lakeheadu.ca _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
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