reader errors in REPL
Edi Weitz <[email protected]>
| Newsgroups | gmane.lisp.allegro |
|---|---|
| Message-ID | <[email protected]> |
Hi! If a reader error occurs in the REPL the only available restart is "Abort entirely from this process." Is that expected behaviour? The other implementations I tried all offer one or more ways to recover cleanly - at least you're not forced to completely quit the Lisp image. [AllegroCL 6.2 trial on Linux x86] Thanks, Edi. edi@bird:~ > alisp WARNING: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! WARNING: Allegro CL will expire in 23 days. WARNING: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ; Fast loading /usr/local/lisp/defsystem.acl.fasl ; Fast loading /usr/local/lisp/asdf.acl.fasl International Allegro CL Trial Edition 6.2 [Linux (x86)] (Sep 12, 2003 1:39) Copyright (C) 1985-2002, Franz Inc., Berkeley, CA, USA. All Rights Reserved. This development copy of Allegro CL is licensed to: Dr. Edmund Weitz, self-employed ;; Optimization settings: safety 1, space 1, speed 1, debug 2. ;; For a complete description of all compiler switches given the ;; current optimization settings evaluate (EXPLAIN-COMPILER-SETTINGS). CL-USER(1): (* #.(/ 3 0) 4) Error: Attempt to divide 3 by zero. [condition type: DIVISION-BY-ZERO] Restart actions (select using :continue): 0: Abort entirely from this process. [1] CL-USER(2): :continue 0 edi@bird:~ > lw LispWorks(R): The Common Lisp Programming Environment Copyright (C) 1987-2002 Xanalys LLC. All rights reserved. Version 4.2.7 Saved by edi as lw-ilisp-capi, at 04 Oct 2002 0:52 User edi on bird.agharta.de ; Loading text file /usr/local/lib/LispWorks/lib/4-2-0-0/config/siteinit.lisp ; Loading text file /usr/local/lib/LispWorks/lib/4-2-0-0/private-patches/load.lisp ; Loading text file /home/edi/.lispworks ; Loading fasl file /usr/local/lib/LispWorks/defsystem.ufsl ; Loading text file /usr/local/lisp/asdf.lisp ; Loading /usr/local/lib/LispWorks/lib/4-2-0-0/modules/concat/xp-fancyformat.ufsl on demand... CL-USER 1 > (* #.(/ 3 0) 4) Error: Division-by-zero caused by / of (3 0). 1 (continue) Return a value to use. 2 Supply new arguments to use. 3 (abort) Return to level 0. 4 Return to top-level loop. 5 Return from multiprocessing. Type :b for backtrace, :c <option number> to proceed, or :? for other options CL-USER 1 : 1 > :c Supply a form to be evaluated and used: 2 8