From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-workers-return-43874-ml=inbox.vuxu.org@zsh.org>
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org
X-Spam-Level: 
X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI,
	RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2
Received: from primenet.com.au (ns1.primenet.com.au [203.24.36.2])
	by inbox.vuxu.org (OpenSMTPD) with ESMTP id f01c0ad3
	for <ml@inbox.vuxu.org>;
	Sat, 8 Dec 2018 20:23:50 +0000 (UTC)
Received: (qmail 29268 invoked by alias); 8 Dec 2018 20:23:32 -0000
Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm
Precedence: bulk
X-No-Archive: yes
List-Id: Zsh Workers List <zsh-workers.zsh.org>
List-Post: <mailto:zsh-workers@zsh.org>
List-Help: <mailto:zsh-workers-help@zsh.org>
List-Unsubscribe: <mailto:zsh-workers-unsubscribe@zsh.org>
X-Seq: 43874
Received: (qmail 24571 invoked by uid 1010); 8 Dec 2018 20:23:32 -0000
X-Qmail-Scanner-Diagnostics: from kahlil.inlv.org by f.primenet.com.au (envelope-from <martijn@inlv.org>, uid 7791) with qmail-scanner-2.11 
 (clamdscan: 0.100.2/25112. spamassassin: 3.4.2.  
 Clear:RC:0(37.59.109.123):SA:0(-1.9/5.0):. 
 Processed in 2.651764 secs); 08 Dec 2018 20:23:32 -0000
X-Envelope-From: martijn@inlv.org
X-Qmail-Scanner-Mime-Attachments: |
X-Qmail-Scanner-Zip-Files: |
From: Martijn Dekker <martijn@inlv.org>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: EXIT trap not executed on error
Message-ID: <1939278e-89c4-812d-5dea-e836568dc100@inlv.org>
Date: Sat, 8 Dec 2018 21:08:45 +0100
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:52.0)
 Gecko/20100101 Thunderbird/52.9.1
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-GB
Content-Transfer-Encoding: 7bit

When zsh exits due to an error in a special builtin (e.g. 'set -o 
bad@option') or in an arithmetic expression in $((...)), the EXIT trap 
is not executed.

Is this a bug? I'm not sure -- I can't find anything relevant in the 
POSIX spec. But it seems to me like the trap should be executed. All the 
other shells execute the trap.

Emulation modes don't seem to make a difference to this behaviour.

$ zsh -c 'trap "echo OK" EXIT; : $((1\\2)); echo OOPS'
zsh:1: bad math expression: illegal character: \

(output I would expect: that error message followed by 'OK')

- M.