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Re: OS X: C-g does not break out of infinite loop

From: YAMAMOTO Mitsuharu
Subject: Re: OS X: C-g does not break out of infinite loop
Date: Thu, 15 Jul 2004 22:57:12 +0900
User-agent: Wanderlust/2.10.1 (Watching The Wheels) SEMI/1.14.5 (Awara-Onsen) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 Emacs/21.3.50 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI)

>>>>> On Thu, 15 Jul 2004 09:17:36 -0400, Richard Stallman <address@hidden> 
>>>>> said:

>> with Yoichi's response (together with a test case that I can
>> reproduce: C-g on OS X cannot recover from evaling any of the
>> following three:

>> 1. (condition-case nil (while 1) (error (error "catch error"))
>> (quit (error "catch quit")))
>> 2. (condition-case nil (while 1) (error (error "catch error")))
>> 3. (while 1)

> It sounds like the mechanism for detecting C-g may need a redesign.
> Is there any Lisp program you can successfully interrupt with C-g?

That problem was mentioned three months ago, but maybe obscured by
other urgent problems.


The attached is a patch for the latest CVS.  With this patch, all the
above examples can be quit by C-g on OS X (Carbon).

                                     YAMAMOTO Mitsuharu

Attachment: diff-event.gz
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