From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18476 invoked by alias); 8 Mar 2018 19:11:36 -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: List-Unsubscribe: X-Seq: 42433 Received: (qmail 21399 invoked by uid 1010); 8 Mar 2018 19:11:36 -0000 X-Qmail-Scanner-Diagnostics: from mail-wm0-f44.google.com by f.primenet.com.au (envelope-from , uid 7791) with qmail-scanner-2.11 (clamdscan: 0.99.2/21882. spamassassin: 3.4.1. Clear:RC:0(74.125.82.44):SA:0(-1.9/5.0):. Processed in 1.103319 secs); 08 Mar 2018 19:11:36 -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, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_PASS, T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.1 X-Envelope-From: stephane.chazelas@gmail.com X-Qmail-Scanner-Mime-Attachments: | X-Qmail-Scanner-Zip-Files: | DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:subject:message-id:mail-followup-to:references :mime-version:content-disposition:in-reply-to:user-agent; bh=x6mqM5foPVkq3SJ2R0WBEKB/Q9RlBLpdmjyEQ5Yx0pE=; b=qPIVPj8CbBhFPeFfPyYHNMURtEN0f8qLonVaJXP5AdTJ0Ao1P5lnM8ieKsOM9s0jIk TPRxW8BxPY4RBxQFsshlkircLMXVJn7Q4MDsoS/hg+hIp5XePD26BdHRgWpQxcTKVVIp EG0PYdIiQTcxY5a2cDzfFaT+W7idAT3FmvRmgKy4bKvr5S/1BqWzWL+QWH8vJTKjDdpv OwJqu89OHwgR9tAGJP/Q+dtGoXUo6KOmXYGYF20/zfxvl+oom+ZFJg3TB1QADNIxKOsV xqiF0dE1zCu+/b1FC3BaYDmlfNlzXjoFfArBGIQVk9Qjmch0KkQJPslmdd9H1aZnYDRI 1izA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mail-followup-to :references:mime-version:content-disposition:in-reply-to:user-agent; bh=x6mqM5foPVkq3SJ2R0WBEKB/Q9RlBLpdmjyEQ5Yx0pE=; b=lCV8vYWjCmpfWOS72vyxEFSmb0FDBY3lyRP4v/ZyUYzQTQcY7meRzhyCTSWwAvLd8C rctuYdWfjPTauWNdhi96n6iJb3sIUOhYHablh3FtN7H6LyEFYumAkaGsYVt5T8+UmFUi S6GaooPib+DQ4PdfJ5aOlRZqrvLWOKzz+WtRR+ACpQOL03ptrnraxz7LYWVZF2ggdtNt teIzOC+xVheTK8aVvkwc4mwRnRim50Hk1X8stXS9jZg3FO2MyvVBORC7tW+UiOHneIiE 64rdks03d8SE3NhoKS9SwYZpmSEXOmeuvlu6l5rQM/QHSoRXFkqz7Zma2raPYWlb5GpI qVOw== X-Gm-Message-State: AElRT7Hr6LNLsMnT/AJ+dnNLPVj5X/3Drfi5IuFcJ+ZFlo9CfjvO5Pi2 xFeReLLbJ+DJzxPDIKweCrQyIA== X-Google-Smtp-Source: AG47ELvuEqs4qKxmEBKXqsLO8NauwUY16onsXbsRB93KYh4Ul64mqQijSJdCFDTxfIK7zk0APoLL1w== X-Received: by 10.28.9.19 with SMTP id 19mr20395914wmj.114.1520536290841; Thu, 08 Mar 2018 11:11:30 -0800 (PST) Date: Thu, 8 Mar 2018 19:11:28 +0000 From: Stephane Chazelas To: Zsh hackers list Subject: Re: issues with ${array[x][y]} Message-ID: <20180308191128.GA24398@chaz.gmail.com> Mail-Followup-To: Zsh hackers list References: <20180306151644.GA10296@chaz.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180306151644.GA10296@chaz.gmail.com> User-Agent: Mutt/1.5.24 (2015-08-30) 2018-03-06 15:16:44 +0000, Stephane Chazelas: [...] > string[1]=x > > and reference ${array[1][1]} > > but: > > $ a[1][1]=b > zsh: no matches found: a[1][1]=b > $ ((a[1][1] = 2)) > zsh: bad base syntax > $ typeset 'a[1][1]=2' > zsh: not an identifier: a[1][1] [...] Also: $ a=(213 345) $ echo $((a[1])) $((${a[1]})) 213 213 $ echo $((a[1][2])) zsh: bad base syntax $ echo $((${a[1][2]})) 1 For reference, in ksh93, ${a[1][2][3]} is used for its multi-dimensional arrays, and ${a[1][2]} $((a[1][2])) a[1][2]=x ((a[1][2] = 3)) typeset -n b='a[1][2]' are recognised consistently, but ${a[1][2]=x} is buggy: $ ksh -c ': ${a[1][2]=x}; typeset -p a' typeset -a a=([1]=([0]=) ) $ ksh -c 'a[1][2]=x; typeset -p a' typeset -a a=([1]=([2]=x) ) (of course, it's more important for ksh93, as multi-dimensional arrays would be less useful without, while zsh's a[1][2] setting the second character of the first element of a is not going to be often useful (except maybe for the $mapfile case mentioned earlier)) -- Stephane