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doc:getting_started:lisp_crash_course [2022/05/03 20:43] – khoshnamdoc:getting_started:lisp_crash_course [2022/05/17 09:01] – khoshnam
Line 940: Line 940:
  
 <code lisp> <code lisp>
-CL-USER>(defun *number-was-odd nil)+CL-USER>(defun *number-was-odd* nil)
  
 CL-USER>(if (oddp 5) CL-USER>(if (oddp 5)
- (progn (setf (number-was-odd t)+ (progn (setf (*number-was-odd* t)
  ‘odd-number)  ‘odd-number)
  ‘even-number)  ‘even-number)
Line 983: Line 983:
 </code> </code>
  
-<code lisp>+
  
 **defparameter** **defparameter**
 \\ \\
 +<code lisp>
 CL-USER>(defparameter *fruit* 'apple) CL-USER>(defparameter *fruit* 'apple)
 CL-USER>(cond ((eq *fruit* 'apple) 'its-an-apple) CL-USER>(cond ((eq *fruit* 'apple) 'its-an-apple)
Line 1061: Line 1062:
      body-form*)      body-form*)
 </code> </code>
 +The list-form will be the list of elements that are iterated\\
 +The body-form are present in the loop
  
 <code lisp> <code lisp>
Line 1072: Line 1075:
 **Dotimes** **Dotimes**
 \\ \\
-With dotimes you can do looping for some fixed number of iterations.+With dotimes you can do looping for some fixed number of iterations. So the dotimes is quite similar to dolist, but you should consider that it loops for a particular number of times.
  
 <code lisp> <code lisp>
Line 1092: Line 1095:
 \\ \\
 Do is more general than two others.  Do is more general than two others. 
 +
 +<code lisp>
 +CL-USER>(do (var-form*)
 +               (end-form*)
 +                body-form*)
 +</code>
 +Var-form consists of some varibles that we defined and their initial values And how each iteration will affect it\\
 +end-form composed of how the loop finish and value returned. It will evaluated at the start of the iteration.
  
 <code lisp> <code lisp>