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 autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 14762 invoked from network); 8 Feb 2023 21:29:17 -0000 Received: from zero.zsh.org (2a02:898:31:0:48:4558:7a:7368) by inbox.vuxu.org with ESMTPUTF8; 8 Feb 2023 21:29:17 -0000 ARC-Seal: i=1; cv=none; a=rsa-sha256; d=zsh.org; s=rsa-20210803; t=1675891757; b=ayRHKnM0G2gO8aTSBlA2EOXIjPgFvvBzMWBdnTy3aW9BRf4ZIdsiYi5OvUDZhnY2T+9YKtZiBw TDeW5wwYQsjvtN6DVBVuZLUKxU1v48W5noinGRk3eOAV9u00YG1REfIu4IrmSQ2e1wp5V1hpNi +weM0EnNjXZtphmlS/HsSQsfPuAhBFMVeWMlks11ZB3IcJOwiVIKtHMyRb9fkrLGPp6oCqM2PZ lWuG3EN+UEnEJwi2hnbiJsd39WbqNg/T54MxLmkq+Y/xEHJBBg1Y0nMTpDDQWVM+Y9a+MIVtNG X+zLpes/Zbc0CogD6ggl3Sp0WsLPFVvin3OR+eOseUeGSg==; ARC-Authentication-Results: i=1; zsh.org; iprev=pass (mail-ej1-f47.google.com) smtp.remote-ip=209.85.218.47; dkim=pass header.d=brasslantern-com.20210112.gappssmtp.com header.s=20210112 header.a=rsa-sha256; dmarc=none header.from=brasslantern.com; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=zsh.org; s=rsa-20210803; t=1675891757; bh=TCgdgUqoAzLPY22j68J82JXvxZ5mzqs+k6swug4rd2w=; h=List-Archive:List-Owner:List-Post:List-Unsubscribe:List-Subscribe:List-Help: List-Id:Sender:Content-Type:To:Subject:Message-ID:Date:From:In-Reply-To: References:MIME-Version:DKIM-Signature:DKIM-Signature; b=Rwx6LnbdToSUjkn+7gs2/uQzCfb7WpgDuy4Lxc1/hljKkdiyZZFA2t3s/lxA/cigYMOILGYmkI Sm9Phj1uRA0CuqzetSr8kkUOiPO6lB85riggq1ucgcIoU/heE2bOEBfT27Cqt+pfE80F8tX+92 3A8meZYdBKGL0gMYCwzBXmOa6CVimZ08JuCdV0andleSMKegSHd/llQkzCWoABxd9Mjriznxe/ zVCey8+a7y4dLV1IhgjNWVbGpl2GfvAxJ4clOZVsVFvY3r4G8/OKBTlEcxd7Vj5y0B827Jxnzv 7ZrEi2BdIdMMfFTK2/StZmsoEiUY/NEXKlXxpJ1YO0f1Eg==; 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-Type:To:Subject:Message-ID: Date:From:In-Reply-To:References:MIME-Version:Reply-To:Cc: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID; bh=Yw3CRPQTH2fapqtDKv+tNHzqPpFfQAuqwrc5mkeS4SQ=; b=VNThdBzWSLoiVOk80SVv2Vz8W5 bmIaGrlvGhDrxRcVSKb2Cd6i9jrwB4bV5LEAsb8cqNcnJsIzdKCFixyVDBO0iGASUNOUejFCiTbCW 2gIH8bl01NKJVbHBIUcShbGCmnqdR59poiNc7fZFsFeHlN8bSzOyk43iesA8BAb0Ui+S9x136nejS wtnUmTyoTJDTaCMMCDT/1lTtWs5ONIgBGcJVHx6dbbW+6rRPEa2tWDG3RZI1lvqxMBJvsuoXkJQtl p7V2pUwxnCLzvG+2G8qQM502d+S3RARtNZbfh7Cv7m3JC1hG8FHSaPC8FtHtO29xKtGbC8D388Ct6 EedIs6vA==; Received: by zero.zsh.org with local id 1pPs0D-000PGQ-Br; Wed, 08 Feb 2023 21:29:17 +0000 Authentication-Results: zsh.org; iprev=pass (mail-ej1-f47.google.com) smtp.remote-ip=209.85.218.47; dkim=pass header.d=brasslantern-com.20210112.gappssmtp.com header.s=20210112 header.a=rsa-sha256; dmarc=none header.from=brasslantern.com; arc=none Received: from mail-ej1-f47.google.com ([209.85.218.47]:34649) by zero.zsh.org with esmtps (TLS1.3:TLS_AES_128_GCM_SHA256:128) id 1pPrzu-000OwL-1W; Wed, 08 Feb 2023 21:28:59 +0000 Received: by mail-ej1-f47.google.com with SMTP id p9so847237ejj.1 for ; Wed, 08 Feb 2023 13:28:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brasslantern-com.20210112.gappssmtp.com; s=20210112; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=Yw3CRPQTH2fapqtDKv+tNHzqPpFfQAuqwrc5mkeS4SQ=; b=EXSoKrIoJW/VRmhW4tpTB5s2c7bn0KdUYL3ujrbtvL7iwtioWwr//tr7evr3Ttrmc9 kAClMuWIJ1GKbAZhP6Vnvmr2mhVlCUFzmoj7Tea6nDKsAjX9/1mrMoKx0X2eqNm4AQ06 qjdjADsxvMLOvI72W5h1c1PrBO2NyU3RZSsyswsZd/tBuF0ji0ULBqGpTvBJ6oad5zrO LiKOQvbKAhHIErPZyWxpwbxCUq4aJZY9QbVCyt2mQmxKr+cQK2j8FEhJAfAjxtmH7H5u LLP4izavWplxT1IkHKDtkeSvLeVQW4Cr/R0Q3/lSfVYU1TBXe03eeV77mJZmdVF5fONK UqyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Yw3CRPQTH2fapqtDKv+tNHzqPpFfQAuqwrc5mkeS4SQ=; b=D6N0h1v2PCQiT3RWHdxZj8lXu73rqxJNJnatSDaGdZzLfQS/xyqfKKwMYSKsI0VxXA PdQOpRvpZilY2+JJP6tgrtXb+HTSVXtpOwfmwyFX42jvXdHROrJksRXOlAndlsiyQeua 9H+fYLDU7otHyuBTy5OOm4zxLRD0/Ulfggx8mvSYKJwVSHiV4QX3gzwX8d/l7xYdgiFt gMNr98bAAija0nosYaYJNTVuCyqZyk462b/H6v90/SWpTf/iIr5IaMjYGUILcKVSEX9d HzioZLMN85zW/Rw1TEVG0QQbmmXsu+6eXgqyHaBPwGSggLFcgu6Fneo65AshO8rjB4dW m0tQ== X-Gm-Message-State: AO0yUKVsRKDv4DE5jgSpsrqI2CBGpQt7KqA3IwI5IAUsVEsnDTAH+J3N PIcklDriY6gYJ7vU2XTQAqR6r/i5B8D4GpJ5hYYXwAYGLN6/FcL0 X-Google-Smtp-Source: AK7set8h6X8oCZbqnmCpBr5wGS3agMKCOH7n7M1ha4RRvJSFlWdQNEI9SddcpikVxfIaly0B5+6klGLKkc4GBHXUPtI= X-Received: by 2002:a17:906:4dc7:b0:877:e1ef:e49a with SMTP id f7-20020a1709064dc700b00877e1efe49amr2112280ejw.147.1675891737574; Wed, 08 Feb 2023 13:28:57 -0800 (PST) MIME-Version: 1.0 References: <20230207005647.GA5789@tarpaulin.shahaf.local2> <20230207105105.GB14216@tarpaulin.shahaf.local2> In-Reply-To: From: Bart Schaefer Date: Wed, 8 Feb 2023 13:28:46 -0800 Message-ID: Subject: Re: [PATCH 3/3] Documentation for named references To: Zsh hackers list Content-Type: text/plain; charset="UTF-8" X-Seq: 51382 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: On Tue, Feb 7, 2023 at 8:53 AM Bart Schaefer wrote: > > ${(P)name} is defined to expand $name and then treat the string value > as a further parameter name. What would it mean to expand a named > reference without resolving it? Just ignore that it's a named > reference and treat it as a scalar? That last is in fact what bash does with ${!name} (when not a nameref, it's like ${(P)name}. I suppose it would be nice to have a way to expand the name to which a named reference points, but I'm not sure overloading (P) is the best way. There's a slew of other special bash meanings of parameter references that start with "!": ${!name*} == ${(k)parameters[(I)name*]} ${!name@} == ${(@k)parameters[(I)name*]} ${!name[*]} == ${(k)name} (but indexes of ordinary arrays, too) ${!name[@]} == ${(@k)name} (ditto) Indexes of ordinary arrays aren't very useful in zsh because arrays are not sparse, every element is at least empty string, but you can get the indexes of all non-empty elements with ${(*)name//(#m)?*/${name[(ie)$MATCH]}}