LispForum

I am having problems with this function. What I have worked so far is that it checks for variable that are denoted by "?" For instance variable x is denoted by (? x). so what Im looking to do with it is given two list for instance:  (match '(A (? X) (? Y)) '(A (E F) G)) (T ((X (E F)) (Y...

I have issue trying to make this work..what I am supposed to do is to change a string for another one given For instance if (my-replace '(a (b c) d) '(b c) 'x) -> ( axd ) -->this is what the result should be My code is the following, please help * (defun my-replace( s1 s2 s3) (cond ((null s1) "...