newlispfanclub.alh.net

Posted: **Wed Feb 29, 2012 12:31 am**

While run this code:

(define (hello-world a)
	(letn ((tmp 10)
	       (val1 (* tmp 2))
		   (val2 (* tmp 2)))		
		)
	)

(debug (hello-world 10))

Posted: **Wed Feb 29, 2012 11:35 am**

Looks OK here:

Code: Select all

newLISP v.10.3.2 on OSX IPv4/6 UTF-8, execute 'newlisp -h' for more info.
> 
(define (hello-world a)
   (letn ((tmp 10)
          (val1 (* tmp 2))
         (val2 (* tmp 2)))      
      )
   )
(lambda (a) 
 (letn ((tmp 10) (val1 (* tmp 2)) (val2 (* tmp 2)))))
> (debug (hello-world 10))
-----
(define (hello-world a)
  (letn ((tmp 10) (val1 (* tmp 2)) (val2 (* tmp 2)))))
[-> 3 ] s|tep n|ext c|ont q|uit > s
-----
(define (hello-world a)
  (letn ((tmp 10) (val1 (* tmp 2)) (val2 (* tmp 2)))))
[-> 4 ] s|tep n|ext c|ont q|uit > s
-----
(define (hello-world a)
  (letn ((tmp 10) (val1 (* tmp 2)) (val2 (* tmp 2)))))
RESULT: 20
[<- 4 ] s|tep n|ext c|ont q|uit > s
-----
(define (hello-world a)
  (letn ((tmp 10) (val1 (* tmp 2)) (val2 (* tmp 2)))))
[-> 4 ] s|tep n|ext c|ont q|uit > s
-----
(define (hello-world a)
  (letn ((tmp 10) (val1 (* tmp 2)) (val2 (* tmp 2)))))
RESULT: 20
[<- 4 ] s|tep n|ext c|ont q|uit > s
-----
(define (hello-world a)
  (letn ((tmp 10) (val1 (* tmp 2)) (val2 (* tmp 2)))))
RESULT: nil
[<- 3 ] s|tep n|ext c|ont q|uit > s
nil
>

Posted: **Wed Feb 29, 2012 2:59 pm**

From the manual description of the 'trace' function:

If an expression occurs more than once in a function, the first occurrence of the executing function will always be highlighted (bracketed).

This only affects the highlighting, the debugger will always execute expressions in correct order. For internal reasons this cannot be avoided, or would need an unreasonable amount of code to work around it.

Ps: not sure, why the hashmark brackets don't show up on Cormullion's example. Perhaps he uses 'trace-highlight' '?

Posted: **Wed Feb 29, 2012 3:58 pm**

Yes, sorry, I got the wrong end of the stick on this. Was going to delete the post but errors are instructive... :)

Posted: **Thu Mar 01, 2012 12:38 am**

Lutz wrote:From the manual description of the 'trace' function:

If an expression occurs more than once in a function, the first occurrence of the executing function will always be highlighted (bracketed).
This only affects the highlighting, the debugger will always execute expressions in correct order. For internal reasons this cannot be avoided, or would need an unreasonable amount of code to work around it.

Ps: not sure, why the hashmark brackets don't show up on Cormullion's example. Perhaps he uses 'trace-highlight' '?

I understand. Thanks. :)

newlispfanclub.alh.net

Debug feature bracket match error?

Debug feature bracket match error?

Re: Debug feature bracket match error?

Re: Debug feature bracket match error?

Re: Debug feature bracket match error?

Re: Debug feature bracket match error?