Dear all, CLtL2 defines ony functions to raise errors (cerror error ...) but does not define error handling facilities. Unfortunately, I coudn't spot the point in the Lispworks definition hwre this topic is taken up. Has Lispworks some kimd of catch-error? Reinhard Oldenburg
Reinhard Oldenburg wrote: > > Dear all, > > CLtL2 defines ony functions to raise errors (cerror error ...) but does > not define error handling facilities. Unfortunately, I coudn't spot the > point in the Lispworks definition hwre this topic is taken up. Has > Lispworks some kimd of catch-error? > > Reinhard Oldenburg ??? CL defines a fairly powerful standard error handling mechanism. See handler-bind and handler-case in the Hyperspec -- Chris Riesbeck Home page: http://www.cs.northwestern.edu/~riesbeck/ Calendar: http://calendar.yahoo.com/criesbeck
It's already in CLtL2. You're looking for handler-case and handler-bind. Pascal On 10 Sep 2008, at 17:05, Reinhard Oldenburg wrote: > > Dear all, > > CLtL2 defines ony functions to raise errors (cerror error ...) but > does not define error handling facilities. Unfortunately, I coudn't > spot the point in the Lispworks definition hwre this topic is taken > up. Has Lispworks some kimd of catch-error? > > Reinhard Oldenburg > -- Pascal Costanza, mailto:pc@p-cos.net, http://p-cos.net Vrije Universiteit Brussel, Programming Technology Lab Pleinlaan 2, B-1050 Brussel, Belgium
I've found the chapter, "19. Beyond Exception Handling: Conditions and Restarts" of Peter Seibel's "Practical Common Lisp" particularly useful as it explains some of the things that make the CL condition handling system different than what is present in other languages: http://gigamonkeys.com/book/beyond-exception-handling-conditions-and-restarts.html On Wed, Sep 10, 2008 at 11:05 AM, Reinhard Oldenburg <oldenbur@math.uni-frankfurt.de> wrote: > > Dear all, > > CLtL2 defines ony functions to raise errors (cerror error ...) but does not > define error handling facilities. Unfortunately, I coudn't spot the point in > the Lispworks definition hwre this topic is taken up. Has Lispworks some > kimd of catch-error? > > Reinhard Oldenburg > > -- ===================== Joshua Taylor tayloj@cs.rpi.edu, jtaylor@alum.rpi.edu "A lot of good things went down one time, back in the goodle days." John Hartford
Reinhard Oldenburg schrieb: > > Dear all, > > CLtL2 defines ony functions to raise errors (cerror error ...) but does > not define error handling facilities. Unfortunately, I coudn't spot the > point in the Lispworks definition hwre this topic is taken up. Has > Lispworks some kimd of catch-error? > > Reinhard Oldenburg > > see http://gigamonkeys.com/book/beyond-exception-handling-conditions-and-restarts.html Jens
Am 10.09.2008 um 17:05 schrieb Reinhard Oldenburg: > > Dear all, > > CLtL2 defines ony functions to raise errors (cerror error ...) but > does not define error handling facilities. Unfortunately, I coudn't > spot the point in the Lispworks definition hwre this topic is taken > up. Has Lispworks some kimd of catch-error? > > Reinhard Oldenburg It is chapter 29 in CLtL2: http://lispm.dyndns.org/documentation/cltl2/clm/node312.html#SECTION003300000000000000000 But you should move on to the Common Lisp Hyperspec, which is provided by LispWorks. The HyperSpec is kind of a version of the ANSI Common Lisp specification. CLtL2 describes a version of Common Lisp between CLtL1 and the ANSI CL Spec. CLtL2 is useful for some background information, but in several areas there are changes - so the ANSI CL spec is a better source for information about the Common Lisp language as it is provided by implementations nowadays. In LispWorks, look at the Help menu. Select 'manuals' and there the 'ANSI Common Lisp standard'. The HyperSpec appears then in your browser (I hope!). Go to 'contents'. Chapter 9 is about the condition system. As mentioned, Peter Seibel's book explain some error handling using the condition system in his book 'Practical Common Lisp'. Regards, Rainer Joswig Rainer Joswig, Hamburg, Germany http://lispm.dyndns.org/ mailto:joswig@lisp.de