From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.3 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,T_SCC_BODY_TEXT_LINE, UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 3880 invoked from network); 14 Sep 2022 16:53:39 -0000 Received: from zero.zsh.org (2a02:898:31:0:48:4558:7a:7368) by inbox.vuxu.org with ESMTPUTF8; 14 Sep 2022 16:53:39 -0000 ARC-Seal: i=1; cv=none; a=rsa-sha256; d=zsh.org; s=rsa-20210803; t=1663174419; b=AYf5cK/TVbj0jYpUMBshi0VBrjhEx3tZw1WDoMcbwxROPtsT8ZZbYjBUGAmD1QCz46CYC8ziMi SijhSXG25pZHby5COKvwv9/MfG83eQaV2Nq0VYJujJQNHpvGB3oKl9Mxg6Ntd/xcO8KkvBx6hP 0HJM+y4bYgVn/m/3vSJvlPtAP/UcrJt+cduf0T7LmtAWpratnNGWPZ79wHu7C+zoXhcBSsfEAp 9QJfYMb6JRyx5XZazzbnPHSQAuaaZ72rNRqBVwqbB7L7VEpbRVTrBM41iL3Ebw5DU6N2r+AlY+ Clp0tssIUnIvtMeRb4Zlx9590b6rbahAfcs53kDzVDA7qw==; ARC-Authentication-Results: i=1; zsh.org; iprev=pass (p3plsmtp27-03-2.prod.phx3.secureserver.net) smtp.remote-ip=216.69.139.50; dmarc=none header.from=rayninfo.co.uk; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=zsh.org; s=rsa-20210803; t=1663174419; bh=5kIVRDfeir8EPTqVEDHLyRDqAiEK+ACYbVCi2Z79Ecs=; h=List-Archive:List-Owner:List-Post:List-Unsubscribe:List-Subscribe:List-Help: List-Id:Sender:Content-Transfer-Encoding:Content-Type:Subject:From:To: MIME-Version:Date:Message-ID:DKIM-Signature; b=jQXGms0q+4q2VQMm07Qlmg/nwqJSnAPjJWHIQPSJp5qn38pZBfvU1iFzcuforRQn5KBlR0fVqa 0mIZt7P9Pn5Y8X+9e7wUilNxv1IqWg/Rc8Q0pySWfym1QpotzdS/1WGy5KsTDxkpztdDkG4iww K6YPTOB/iKMuzub54csbni9KUEoCG1/qvHlJDG5mulY8gy4MCr2tp1bZLqRYP946xCTNgMqSyl 8XcGsJmwMP/wSj68vjjtZOYE41Ujtx9+xUlo2r/lysao+W+wco20bl81Aa0k3whB2jK6oCn2/l lco0EdhvddRpHMXC9Car3KvrGt/mRzbjdRtJnAVU0nmkmw==; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=zsh.org; s=rsa-20210803; h=List-Archive:List-Owner:List-Post:List-Unsubscribe: List-Subscribe:List-Help:List-Id:Sender:Content-Transfer-Encoding: Content-Type:Subject:From:To:MIME-Version:Date:Message-ID:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References; bh=5kIVRDfeir8EPTqVEDHLyRDqAiEK+ACYbVCi2Z79Ecs=; b=lxosD/8n6oiRgQ2i6tnaJYl5RY R3HfWfKvfqjCdE95HOU3r/Gf14PbSiiMGLcR8qhoDEZ58x2PIdzsJvta+zm3mg+wtbfO1hfS5donQ stYmoTnw+1ybEm6ZBAUVj5cHhug6fhiv+bfKGFZ/gwXn4OOjWqRjITnD+gzj3uMvVv8lEXp4mgI6g QQsMi6izWw7B6RH5gJAOybKrFvNn6mZAMtiNbm7Fmp0+4sSOl7zQWnG9DE2jI/aPt63aDmWruI4Hx 3Wsbykt9AG0gxGcDAHPS7aWGvFzJ2BEMLt+P+Xw4+C5tuzyF64akwlcaC1him7nBcoDvRQsjDekUk o29efoUQ==; Received: from authenticated user by zero.zsh.org with local id 1oYVdp-000JX0-If; Wed, 14 Sep 2022 16:53:37 +0000 Authentication-Results: zsh.org; iprev=pass (p3plsmtp27-03-2.prod.phx3.secureserver.net) smtp.remote-ip=216.69.139.50; dmarc=none header.from=rayninfo.co.uk; arc=none Received: from p3plsmtp27-03-2.prod.phx3.secureserver.net ([216.69.139.50]:56993 helo=p3plwbeout27-03.prod.phx3.secureserver.net) by zero.zsh.org with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) id 1oYPF7-0009RZ-FQ; Wed, 14 Sep 2022 10:03:42 +0000 Received: from mailex.mailcore.me ([94.136.40.145]) by :WBEOUT: with ESMTP id YPF4oRX3SeEacYPF5olJ9h; Wed, 14 Sep 2022 03:03:39 -0700 X-CMAE-Analysis: v=2.4 cv=SKuH6MjH c=1 sm=1 tr=0 ts=6321a6fb a=7e6w4QD8YWtpVJ/7+iiidw==:117 a=UNgyr3XT6yv5NrNUVILU/Q==:17 a=1HjCxttUbyEA:10 a=IkcTkHD0fZMA:10 a=xOM3xZuef0cA:10 a=J_9H87muby93bSQTbFAA:9 a=QEXdDO2ut3YA:10 X-SECURESERVER-ACCT: david@rayninfo.co.uk X-SID: YPF4oRX3SeEac Received: from [95.145.222.232] (helo=[192.168.1.231]) by smtp06.mailcore.me with esmtpa (Exim 4.94.2) (envelope-from ) id 1oYPF3-0005Tj-R3 for zsh-users@zsh.org; Wed, 14 Sep 2022 11:03:38 +0100 Message-ID: <5dc8b935-f234-ca54-0ceb-50cb1da9bc29@rayninfo.co.uk> Date: Wed, 14 Sep 2022 11:03:37 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Content-Language: en-US To: Zsh-Users List From: zzapper Subject: Can I test if a parameter expansion has worked Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Mailcore-Auth: 8308408 X-Mailcore-Domain: 840527 X-123-reg-Authenticated: david@rayninfo.co.uk X-Originating-IP: 95.145.222.232 X-CMAE-Envelope: MS4xfGdklvJoAo9s/LO0l3VcLh6W+dFJTs2tQj9wTYA0DCDA2PuZjlhWqT1KvH8ycrCovkYx1QnaKpftmgw1fvx4aEkRy+mZ6spQhmgynEXQJONl2rDpxJmd NBYavu+QN4EpZHghhvkNbnF9fBIzlFOP7jhpHOdtsAMguuQRFZ4FEruVCYZigSGF+LINOO4+JhiC5A== X-Validation-by: kb@spambri.de X-Seq: 28069 Archived-At: X-Loop: zsh-users@zsh.org Errors-To: zsh-users-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-users-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: Hi Q1) Can I test if a parameter expansion has 'fired'? other than by testing if input == output zzapper