http://www.norvig.com/paip/README.html
in SBCL command line
* (load "auxfns.lisp")
having a debugger message:
debugger invoked on a SB-SYS:INTERACTIVE-INTERRUPT in thread
select 2
2: [UNLOCK-PACKAGE] Unlock the package.
*(requires "examples")
having a debugger message:
debugger invoked on a SB-INT:SIMPLE-FILE-ERROR in thread
#<THREAD "initial thread" RUNNING {1002998E73}>:
failed to find the WRITE-DATE of /home/user/test/paip/bin/examples.bin:
revise the file "auxfns.lisp" as follows
in Line 87: ;Replace
;(defun load-paip-file (file)
; "Load the binary file if it exists and is newer, else load the source."
; (let* ((src (paip-pathname file :lisp))
; (src-date (file-write-date src))
; (bin (paip-pathname file :binary))
; (bin-date (file-write-date bin)))
; (load (if (and (probe-file bin) src-date bin-date (>= bin-date src-date))
; bin
; src))))
;with:
(defun load-paip-file (file)
"Load the binary file if it exists and is newer, else load the source."
(load (paip-pathname file :lisp)))
reload "auxfns.lisp" and then try again
* (requires "examples")
* (do-example :all) ;do all examples
* (do-example 1) ;do first example
* (do-example '(1 2)) ;do first and second example
the solution reference from
http://compgroups.net/comp.lang.lisp/paip-auxfns.lisp-continuable-error/697367
