From owner-freebsd-bugs@freebsd.org Sun Jul 12 11:19:23 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 43EB7360058 for ; Sun, 12 Jul 2020 11:19:23 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4B4PSC16Qnz4RCt for ; Sun, 12 Jul 2020 11:19:23 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 261C6360496; Sun, 12 Jul 2020 11:19:23 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 25DFB35FEFF for ; Sun, 12 Jul 2020 11:19:23 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4B4PSC0CZMz4R6y for ; Sun, 12 Jul 2020 11:19:23 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id E0197237C3 for ; Sun, 12 Jul 2020 11:19:22 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 06CBJM7B036303 for ; Sun, 12 Jul 2020 11:19:22 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 06CBJMQJ036302 for bugs@FreeBSD.org; Sun, 12 Jul 2020 11:19:22 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 247930] sed pattern space deleted upon leading insertion Date: Sun, 12 Jul 2020 11:19:23 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 12.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: lhoursquentin@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Jul 2020 11:19:23 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D247930 Bug ID: 247930 Summary: sed pattern space deleted upon leading insertion Product: Base System Version: 12.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: lhoursquentin@gmail.com When adding leading text with `s/^/some text/`, if the pattern space contai= ns multiple lines with the first one being empty then the pattern space remain= ing lines are deleted (case 2 below). One line reproducer: ``` sh$ echo content | sed 'H; g; s/^/preceding/' preceding sh$ ``` More complete examples: 1 - Non empty first line case ``` s/.*/1st line\ 2nd line\ 3rd line/ l i \ ----- s/^/some preceding text / l ``` ``` sh$ echo | sed -nf non-empty-first-line.sed 1st line$ 2nd line$ 3rd line$ ----- some preceding text 1st line$ 2nd line$ 3rd line$ ``` 2 - Empty first line case (the actual bug) ``` s/.*/\ 2nd line\ 3rd line/ l i \ ----- s/^/some preceding text / l ``` ``` sh$ echo | sed -nf empty-first-line.sed $ 2nd line$ 3rd line$ ----- some preceding text $ $ ``` 3 - Empty first line case workaround ``` s/.*/\ 2nd line\ 3rd line/ l i \ ----- s/.*/some preceding text &/ l ``` ``` sh$ echo | sed -nf empty-first-line-workaround.sed $ 2nd line$ 3rd line$ ----- some preceding text $ 2nd line$ 3rd line$ ``` --=20 You are receiving this mail because: You are the assignee for the bug.=