exercises and notes from "Gentle introduction"

break-and-error.lisp

@@ -0,0 +1,23 @@
+
+(defun analyze-profit (price comission-rate)
+  (let* ((comission (* price comission-rate))
+         (result (cond ((> 100 comission) 'rich)
+                       ((< 100 comission) 'poor))))
+    (break "~&The value of result is ~S" result)
+    (format t "~&I predict that you will be: ~S" result)
+    result))
+
+(analyze-profit 2200 0.06)
+(analyze-profit 2000 0.05)
+
+;;; So - debugger keys and functions
+;; C-j and C-k are for moving between frames
+;; for frame context commands R - return from frame with particular value (sly-db-return-from-frame)
+;; x - step over, s - step
+;; e - eval in frame, i - inspect in frame (show additional info on evaluated value)
+;; RET - toggle details for current frame
+;; v - show frames code
+;; d - pretty-print-eval-in-frame
+;; (searching all of functions by going into debugger bugger and looking at *helpful* (C-h C-f) "sly-db-"
+
+;; could also try to recompile thing, maybe r for restart, or R to return with value 1 from last frame and check how it all works