From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12284 invoked by alias); 15 Feb 2016 06:51:37 -0000 Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm Precedence: bulk X-No-Archive: yes List-Id: Zsh Workers List List-Post: List-Help: X-Seq: 37978 Received: (qmail 20830 invoked from network); 15 Feb 2016 06:51:35 -0000 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM, T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=shUSc3Lyj7MjI2cMTFNQu4KmjCYUNKHYjc7yGpTXhq8=; b=z6ojNz3fwC7oeHQtLBUu5+ovPvOti5PXHZAlhdCB4UNLgU5z4xtt69pSyusE6trwd6 3eltUqSGWOG2LODkeGz8n2q1+8acHhBvm8G0OcGKKbA73gzRB0PQB3SeanJuoipumVep hBd7XQjSqF+Y00+qwl0hcsPp+40Sdk5HaDa4+YZLMsrBjiu9f6WCqWsh3uaXH4LTiv/u ySXJHE6dpGMJ6Ymw3mFNQk8KW7BNKQxIn8hH6nvGbGqjf/PXvvPy8fiCJxnILy/q51gN ojy6hbAjcawRELOnX5FnqKP/6DVKAW00ydH3EfFSxvs4Pt92BdLRRnnB1oUcbuKJlWVK I9YQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=shUSc3Lyj7MjI2cMTFNQu4KmjCYUNKHYjc7yGpTXhq8=; b=A0PSCBwO83jXlB97SEFsLj+Lj1Wpz9dptisafiIJfTE/pesUq2retHT/2a76gZ4Jj9 i0KK0u+G/d7d4o+CnmMVNrJAk3n2KEuRbSmWHqZJZlpeZfoIWgwKHDE8bApd16JRzdyj t9VygdjhZ008TYcmsjG5ijtkqxwycC1J2ZbpBEKia8uRHLhW9SPi0lopnlN4J2GYBC4W aHI50DNRu7xllE1Wm5ZqEHpYTiSvwiSgcgoNnq3ji2eSePI5C+hcmYZ9ylY+wg5CLtDl miGLVG0JsnKGl4ADcS+l9wxYVJPXwIVrMqAszkEwhs3VZqgtHKeDiDCq3ZrA8UJK39TS 31EA== X-Gm-Message-State: AG10YOTCYtHDOFupLABQzKihWPoCP8W55As/tlHZUMPZamdt1xnLy2zjp43LZO+AAnr8Wbk8IlX1CurbcRzXAw== MIME-Version: 1.0 X-Received: by 10.140.178.195 with SMTP id y186mr19417914qhy.100.1455519092912; Sun, 14 Feb 2016 22:51:32 -0800 (PST) In-Reply-To: <160214135247.ZM3326@torch.brasslantern.com> References: <20151230104531.GA20496@linux.vnet.ibm.com> <5683F898.7010907@inlv.org> <20160205100902.GA14979@linux.vnet.ibm.com> <20160205102735.1f09973a@pwslap01u.europe.root.pri> <20160205104444.2437ad33@pwslap01u.europe.root.pri> <20160205160236.1274aa5b@pwslap01u.europe.root.pri> <20160205222750.1fda3574@ntlworld.com> <160214135247.ZM3326@torch.brasslantern.com> Date: Mon, 15 Feb 2016 07:51:32 +0100 Message-ID: Subject: Re: Assigning to $0 (formerly: PATCH: funcstack[-1]) From: Mikael Magnusson To: Bart Schaefer Cc: Zsh hackers list Content-Type: text/plain; charset=UTF-8 On Sun, Feb 14, 2016 at 10:52 PM, Bart Schaefer wrote: > On Feb 5, 10:27pm, Peter Stephenson wrote: > } > } By the way, looking at the code I just notice that the following isn't > } an error even though it doesn't do what you presumably expect: > } > } % setopt posixargzero > } % print $0 > } zsh > } % 0=foo > } % print $0 > } zsh > } > } Maybe that's OK so far, but you don't even get the value back when you > } unset the option; it's silently lost. > > So what behavior would be preferable? > > 1. POSIXARGZERO makes $0 report an error on assignment (read only?) > > 2. the value is stored and reappears when POSIXZERO is unset? > > 3. as (2) but a warning is printed? > > As another by-the-way: > > torch% print $0; () { typeset -g 0=argzero; print $0 }; print $0 > Src/zsh > argzero > Src/zsh > > So typeset will accept 0 as a valid name and -g as a valid option, but > can't actually set the global $0. http://www.zsh.org/mla/workers/2015/msg01400.html Some time before that patch, assigning to $0 was always possible, but at some point it stopped working. -- Mikael Magnusson