I'd lie but no.. I was just trying to clarify what I was looking for. I gave a the code for one of the functions I had written, and then an example of the input the user is giving below, and then tried to describe in more detail what I needed help with...
On 9 November 2010 15:23, Shriram Krishnamurthi <s...@cs.brown.edu> wrote: > 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 > > -- Kurt Breitsprecher (807) 474-9601 pkbre...@lakeheadu.ca
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