Thanks for the notes Meikel, i'm a clojure newbie so this sort of
advice in invaluable to me!
On 8 Jan., 16:00, Meikel Brandmeyer wrote:
> Hi,
>
> On Jan 8, 3:10 pm, tristan wrote:
>
> > I've been working on a problem where I want the user to be able to
> > input an equation in infix notation wh
Hi,
On Jan 8, 3:10 pm, tristan wrote:
> I've been working on a problem where I want the user to be able to
> input an equation in infix notation which includes variables and
> convert that to a clojure fn that my program can call later.
You need to construct the form of the function explicitely
Thanks Chouser! I had not thought of moving the (list 'fn ...etc) bit
into the eval statement, it works perfectly! here is the final result!
http://github.com/tristan/modelmaker/blob/d7dbdfa9b998cfc6b846ea5c235b4496ed8caa63/infix_parser.clj
.Tristan
On 8 Jan., 16:15, Chouser wrote:
> On Fri, Jan
On Fri, Jan 8, 2010 at 9:10 AM, tristan wrote:
>
> At first I thought I had solved it, as calling (parse-infix "a*(b+c)")
> returned the desired function that i could call. However as soon as i
> attempted to use it in the form (parse-infix users-input) it falls
> over with a "Don't know how to cr
Hello,
parse-infix, being a macro, works on the code-as-datastructure it has
as arguments.
So (parse-infix x) receives the symbol x , unevaluated, is in charge
of returning a new datastructure (generally involving the symbol x).
Only then, the compiler will evaluate the result of having called
pa
Hi guys,
I've been working on a problem where I want the user to be able to
input an equation in infix notation which includes variables and
convert that to a clojure fn that my program can call later.
i.e. the user inputs the string "a*(b+c)" and i generate the unnamed
function (fn [a b c] (* a
