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=-3.4 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 17449 invoked from network); 8 Jan 2023 13:49:20 -0000 Received: from zero.zsh.org (2a02:898:31:0:48:4558:7a:7368) by inbox.vuxu.org with ESMTPUTF8; 8 Jan 2023 13:49:20 -0000 ARC-Seal: i=1; cv=none; a=rsa-sha256; d=zsh.org; s=rsa-20210803; t=1673185760; b=MvQh9JuJCyn1aj/pS/6bXigBfyIqBG57I7CH3vCmrOGaBq0tymoLYmJWbObaW6HzF1kVATqa06 /BYIvEw62R+Skz564cQ19THX5ei3DvHleGaZ53bXN1A/2sFgXMZfCVImEhyb3UV0wtJFE2c3Ss o3M9FsjbeuKv7QPhQ3vHjOxzsofhNrCNFnFPsojAbTOTRb1WwUa8G5S2PODW69auBJMMqz+GFS Aw/n2ADyHuv56OLl2wwwFbN3mWvBSQQkTDv4gOCIPR3BXMhIoYvbbg6mya0PBpJ1BANcIRhypM jkNbEzaoas78EAeKVtgm6TqMyM3A1f3Q/UEWfeHN3XOirw==; ARC-Authentication-Results: i=1; zsh.org; iprev=pass (mail-yb1-f177.google.com) smtp.remote-ip=209.85.219.177; dkim=pass header.d=gmail.com header.s=20210112 header.a=rsa-sha256; dmarc=pass header.from=gmail.com; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=zsh.org; s=rsa-20210803; t=1673185760; bh=Kigr95OE41Oo6cLSE8tWWBYvb4gyz6HBU5g1sYFn2tY=; h=List-Archive:List-Owner:List-Post:List-Unsubscribe:List-Subscribe:List-Help: List-Id:Sender:Content-Type:Cc:To:Subject:Message-ID:Date:From:In-Reply-To: References:MIME-Version:DKIM-Signature:DKIM-Signature; b=mgW+K3vaAxRL2RyHjPTmOdpixz2RCr3URXU7jT7s+WxEnZnCEhsv/pFkBv/iSFu3rOFC+d55yF PVZs+tGnJqsLRqlfLx7WlIwFoy0aPUH8wMPxtHiboHgYFh69OXj7VovM1HSbpvS1Aw0ZPBcL7d p+PsgC/AfACWQxBvgGG96/RdrpBw1d35LAv7f/yNFgG6bzlI7I0ZmZv4K6JMaMWaANTyWLK7wn mXfL598p5EGaESWinbYE8PJLikoYK8MbQtcrlNkthJWPa7HM0sQr9BSQ7hHkFlpvftWXBlWOqn E7UphrDpr6nzJpRxPndb+MOG473lEM6PM/ZbL5HW9iCpYQ==; 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:Cc:To:Subject:Message-ID :Date:From:In-Reply-To:References:MIME-Version:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID; bh=8qKwQIrB6OcsgRvjPlgEj2XQJgVOvRJlhtCtbAQvPyU=; b=IaOLA/j/+ArG1YDVXzZLL4zpHR 344jp2I89Wl0fHFJrSsOxU+2SyWcYLYPM8ppiXDMZ12Ug/vIE4llZZS/nSMs8XgNyDch6YNqQQnVp V3KiG8jkOoWBqUNM45EodWLJ2bzmHLu9HhwH2y2Ot6oaOJFGMHp2j8kYCoE6b0jX6YrGeQChagVBM /98UOylBQ0IBIgk0PPYLAngkuQCGHdIau7ct/WVolPGjufmhWfiSky8NYU3rnFKEWk8uV6diK+Fej 6WutR0BfI9tl67US+icE/JoawVc8EgnuXiuc9VB2ApnC3lZ5M0SY9xy42XmEVp++ImJQr16e8ATK+ LhrnqYHQ==; Received: by zero.zsh.org with local id 1pEW36-0001H4-A7; Sun, 08 Jan 2023 13:49:20 +0000 Authentication-Results: zsh.org; iprev=pass (mail-yb1-f177.google.com) smtp.remote-ip=209.85.219.177; dkim=pass header.d=gmail.com header.s=20210112 header.a=rsa-sha256; dmarc=pass header.from=gmail.com; arc=none Received: from mail-yb1-f177.google.com ([209.85.219.177]:46837) by zero.zsh.org with esmtps (TLS1.3:TLS_AES_128_GCM_SHA256:128) id 1pEW2O-0000Ys-Vn; Sun, 08 Jan 2023 13:48:38 +0000 Received: by mail-yb1-f177.google.com with SMTP id c124so6304379ybb.13 for ; Sun, 08 Jan 2023 05:48:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=8qKwQIrB6OcsgRvjPlgEj2XQJgVOvRJlhtCtbAQvPyU=; b=Fk1AeMytxXEuyr8N41LCQeQ3NqF3XTPgFqSsDZmkWuh7u3Lg+OUrl3yBLsNKUNaPBJ 9RIqquOp8Zb457/kx0/akI/GJ+OzR7CUvBTCMv98cngif15uHWA5VL5iaGrrUAwkti7s gbpmt/nyYOzlLnkDHqjIyktQwqFQNThnIptmW/KgQ4dxDPc6bKd9c3dxVGZD2P2l6l77 vxYopqiMGKC+ofIYugad4dxKYq09EXgGdz6dmEofi0V/maKKDY6u0O8kBZ/5FM4VrqvD 88On2gOSeuGEjK2V+mgPRB3gCRqsSsreJKIoajiWwYxct2jYB5UjLeWsMN1HV+nPuaEe OCKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc: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=8qKwQIrB6OcsgRvjPlgEj2XQJgVOvRJlhtCtbAQvPyU=; b=0+EnanlvN8fl4M18ApiT6LjnaoD3MRgBCdwFzpSotFDMhtlC5S3oX6etLh7juBlwk+ 2ZIkmt5H6xMekEkYsqYXKBeYn94dy3WMbcQSLAUZyyMZlAYxZVYXHqeThSHbQ29T9oDd DTPubUSNTW71yIaUPVWJ90A7YyTE8wB5S68gNDcAJj9OpTYXIhc4wu8+YnDApMzbqV4q CDyZsHKiZxVTPufPI+SIwTw6NljKoYTrrU4FPkBy4ra/kGi2JLQHGIxx2liLKIrVb2lO 2GJ4D04pJvk1ZAjcno+pcxdqzJubbnIRk4kT7zzRWN0uDps7IF1FnBDxfN+0gyvxQc/C aT9w== X-Gm-Message-State: AFqh2kqCC/Gv4GWbwc7vUzSCT+8ukommVGUDrhKInrKoov3btuVlsGfK v9PpNPYeVPi1u5x35qkE8HjLxNgtovry9HqYbubfigcvIz0= X-Google-Smtp-Source: AMrXdXv4awCqtPx79s98R1w9tfj7/g3QECdPJgs7S3zo0rO3D8hS+Um1+BUqJRYV5GMszY4BKQyJ4SPMvZzw7BiG8XE= X-Received: by 2002:a25:bf8c:0:b0:708:c3d2:a2bd with SMTP id l12-20020a25bf8c000000b00708c3d2a2bdmr8025679ybk.138.1673185715736; Sun, 08 Jan 2023 05:48:35 -0800 (PST) MIME-Version: 1.0 References: <20230108132350.GL8411@tarpaulin.shahaf.local2> In-Reply-To: <20230108132350.GL8411@tarpaulin.shahaf.local2> From: Roman Perepelitsa Date: Sun, 8 Jan 2023 14:48:24 +0100 Message-ID: Subject: Re: read with redirected stdin To: Daniel Shahaf Cc: Zsh-Users List , Pier Paolo Grassi Content-Type: text/plain; charset="UTF-8" X-Seq: 28627 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: On Sun, Jan 8, 2023 at 2:30 PM Daniel Shahaf wrote: > > Roman Perepelitsa wrote on Sat, Jan 07, 2023 at 18:31:30 +0100: > > On Sat, Jan 7, 2023 at 6:22 PM Pier Paolo Grassi wrote: > > > > > > Thanks, but i don't _always_ redirect stdin. > > > > The code will still work (except for the corner case I mentioned). > > > > Upon further thinking, the following should work in all cases: > > > > if [[ -n $TTY ]]; then > > # There is a terminal. Read from it. > > read -k1 > > else > > # There is no terminal. Read from stdin. > > read -k1 -u0 > > fi > > Would it be useful to provide a ctermid(3) wrapper in zsh/system? Where would it be useful? Doesn't $TTY already provide a better alternative? IIRC, ctermid() always returns "/dev/tty" while $TTY points to the real device. Roman.