From unknown Sat Aug 16 21:19:20 2025 X-Loop: help-debbugs@gnu.org Subject: bug#33062: grep matches too lazily when invoked with -zoP and matching backreference followed by newline Resent-From: Johannes Riecken Original-Sender: "Debbugs-submit" Resent-CC: bug-coreutils@gnu.org Resent-Date: Tue, 16 Oct 2018 14:42:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 33062 X-GNU-PR-Package: coreutils X-GNU-PR-Keywords: To: 33062@debbugs.gnu.org X-Debbugs-Original-To: bug-coreutils@gnu.org Received: via spool by submit@debbugs.gnu.org id=B.153970087726522 (code B ref -1); Tue, 16 Oct 2018 14:42:02 +0000 Received: (at submit) by debbugs.gnu.org; 16 Oct 2018 14:41:17 +0000 Received: from localhost ([127.0.0.1]:53798 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gCQX6-0006ti-SZ for submit@debbugs.gnu.org; Tue, 16 Oct 2018 10:41:17 -0400 Received: from eggs.gnu.org ([208.118.235.92]:39438) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gCOtD-0003tA-Qi for submit@debbugs.gnu.org; Tue, 16 Oct 2018 08:56:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gCOt7-0000ki-MO for submit@debbugs.gnu.org; Tue, 16 Oct 2018 08:55:54 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=BAYES_40,FREEMAIL_FROM, HTML_MESSAGE autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:58157) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gCOt7-0000kZ-FF for submit@debbugs.gnu.org; Tue, 16 Oct 2018 08:55:53 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49040) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gCOt6-0002LT-NF for bug-coreutils@gnu.org; Tue, 16 Oct 2018 08:55:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gCOt4-0000il-LB for bug-coreutils@gnu.org; Tue, 16 Oct 2018 08:55:52 -0400 Received: from mail-ot1-x330.google.com ([2607:f8b0:4864:20::330]:36222) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gCOt2-0000ee-OG for bug-coreutils@gnu.org; Tue, 16 Oct 2018 08:55:49 -0400 Received: by mail-ot1-x330.google.com with SMTP id x4so20974684otg.3 for ; Tue, 16 Oct 2018 05:55:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=pDJDCO4kRTYafVc+8JOvJJH5jSq014WOWyfMOKQj5LQ=; b=IIoskijtr4Cm8eUca/Wwa8WsJH/fYFanYfkQxxin7slSxDgJYBueNGCpFZX9Zo4cW6 zVp0KP6arI0AWbJh/aMp4jF21rAl8GnqArUSrbixB36s4fNyg3ZBkjlQGqEIoBPZ1l6j ZbQKE2y5aw2aHuarW4RdAsQYyG1EoZg1IH4MqFXPhPqCMWWfyANMzeHqQq/M6CBMxF/P JUuqmE7Ssig2XA+hmYSeX/0r39/+fJUsi4gDZNYmUcmjOauZQcd1hvNBFK0l0HAOdRYj Bh/wqnShRiiW/qREh6p3Zn13feJ/51cQikR34riPoCcKgWIAwBC/qYAl3Y/elyc8VAvw eaLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=pDJDCO4kRTYafVc+8JOvJJH5jSq014WOWyfMOKQj5LQ=; b=ilj2fzd3VDOBxHyJu8vmu2ZvGhRJRMAxKdzlmaAAKsUYujUBitSlhn1DxsDXze9Bqf 8q2Iq2XXsW6i2/UPfIKYBEI68GWpwITLNmS4xLuVwTeIb8TwecTTwgpzVzCgSMkzNFUE sLuwf9P3h+qbzEOk6LmDT+CIFjalwHLReOzwuaMgPv28j006EfCdfQZwmvXz8s2PQT/1 4l6h7PMRHBdKMfpZkH3yh5S2AzVvJ67OGSwr88Z/TycQBIt6PRMKprvwDyKGl1xh0mR3 bFKnu3a4606nyv+/3KnT7i77lDw8wmgFDlfxVXlDC1KyA0bpcRsmVu4aAoiNE1a199Mb xZZA== X-Gm-Message-State: ABuFfoh+0DEfj3gV0ups4DhFLG83j3D9Fs6th3KuX4pxWxUDAkeQZc9Q 0+jQZjeRsgc9OJlWy0pEgGqsG3IWjMStWzcmXYRRjKDrvFE= X-Google-Smtp-Source: ACcGV62+5RXrzS71scbYOpQMs4VQyHyHmAb4eT4ja0iICB4ch/mS9Ksp0PSKLxavk8BcvdcKqH12k7cn2vmg3zSDudA= X-Received: by 2002:a9d:24c7:: with SMTP id z65mr13480239ota.229.1539694544018; Tue, 16 Oct 2018 05:55:44 -0700 (PDT) MIME-Version: 1.0 From: Johannes Riecken Date: Tue, 16 Oct 2018 14:55:34 +0200 Message-ID: Content-Type: multipart/alternative; boundary="0000000000005be2a9057858121c" X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.0 (----) X-Mailman-Approved-At: Tue, 16 Oct 2018 10:41:15 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -5.0 (-----) --0000000000005be2a9057858121c Content-Type: text/plain; charset="UTF-8" Dear maintainers: *Bug summary: *GNU grep 3.0-2 matches too lazily when invoked with -zoP and matching backreference followed by newline *Steps to reproduce:* Create file cases: foo bar cases: 1: foo 2: bar baz cases: 3: baz quux And run grep -zoP '(\s*)cases:\n(\1.*\n)*' cases *Expected output:* cases: 1: foo 2: bar cases: 3: baz * Actual output:* cases: cases: Best regards, Johannes Riecken --0000000000005be2a9057858121c Content-Type: text/html; charset="UTF-8"
Dear maintainers:

Bug summary: GNU grep 3.0-2 matches too lazily when invoked with -zoP and matching backreference followed by newline

Steps to reproduce:

Create file cases:

foo
bar
  cases:
    1: foo
    2: bar
baz
  cases:
    3: baz
quux

And run grep -zoP '(\s*)cases:\n(\1.*\n)*' cases

Expected output:

  cases:
    1: foo
    2: bar
  cases:
    3: baz
Actual output:
  cases:

  cases:
Best regards,

Johannes Riecken
--0000000000005be2a9057858121c-- From unknown Sat Aug 16 21:19:20 2025 X-Loop: help-debbugs@gnu.org Subject: bug#33062: grep matches too lazily when invoked with -zoP and matching backreference followed by newline Resent-From: Bernhard Voelker Original-Sender: "Debbugs-submit" Resent-CC: bug-coreutils@gnu.org Resent-Date: Tue, 23 Oct 2018 23:18:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 33062 X-GNU-PR-Package: coreutils X-GNU-PR-Keywords: To: Johannes Riecken , 33062@debbugs.gnu.org Received: via spool by 33062-submit@debbugs.gnu.org id=B33062.15403366284954 (code B ref 33062); Tue, 23 Oct 2018 23:18:02 +0000 Received: (at 33062) by debbugs.gnu.org; 23 Oct 2018 23:17:08 +0000 Received: from localhost ([127.0.0.1]:38907 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gF5v9-0001Hc-UH for submit@debbugs.gnu.org; Tue, 23 Oct 2018 19:17:08 -0400 Received: from mout.kundenserver.de ([217.72.192.75]:42537) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gF5v7-0001Ba-UP; Tue, 23 Oct 2018 19:17:06 -0400 Received: from [192.168.101.10] ([91.12.166.119]) by mrelayeu.kundenserver.de (mreue108 [212.227.15.183]) with ESMTPSA (Nemesis) id 1MpUMc-1fpdWY1dk4-00puJh; Wed, 24 Oct 2018 01:16:58 +0200 Received: from [192.168.101.10] ([91.12.166.119]) by mrelayeu.kundenserver.de (mreue108 [212.227.15.183]) with ESMTPSA (Nemesis) id 1MpUMc-1fpdWY1dk4-00puJh; Wed, 24 Oct 2018 01:16:58 +0200 References: From: Bernhard Voelker Openpgp: preference=signencrypt Autocrypt: addr=mail@bernhard-voelker.de; prefer-encrypt=mutual; keydata= xsBNBFPirzMBCACyzYldTjQ4ufFOkByY5Nn5USb5GFoL48nWBwNHjd9KUbtRRNlQiPNKd6hK Gvd3BGi5aoFKA4ytfRk6jbAbW3jVb3R8wYaV08mOy4KVEKxqN4bxsXlMjNChXVR+rtKDmfI+ oPTL+cPH2X6gW4W02IRbVw0uUhNm6zEedC/gNrY/mTlf1enZ46jxZ7BTUZaG+kx38UMISIMB zSzLRtdkwgmHj4jS3p1fF2cwRqLclIfMjKGpbNFPEXeXKWrCLcqHw78795eAR9q0YvrDkfIn GdDBwfb3VM4NdulwIFzvYZMSXvSbbyPLB5YkHU5aAWQHUse4WlfT5ccDpbzUYldRAvF9ABEB AAHNK0Jlcm5oYXJkIFZvZWxrZXIgPG1haWxAYmVybmhhcmQtdm9lbGtlci5kZT7CwHkEEwEC ACMFAlPirzMCGwMHCwkIBwMCAQYVCAIJCgsEFgIDAQIeAQIXgAAKCRBGUC73lpFxle5wCACC dbs0QaJ0vR3Sff2cKdTk41rUq3YfWngsR///IOU0C5DdkePmCnJE/lUsUy0LRTxcUDLxQR+x QHU8ssRT0JUO9726dI3miy36UdsgmBYaOtLvQcidGmW1R7o0PYYf04+TFtyqKgngOUBPpMgR 6o4UsQxy/OD4bN1WDqOgIjL+D/qJpkKmgp6L6+hhaBCpiOFKRmmV7YyQ3SqVlfQNiHs5ZtkR nXpIjgZARV+GllKucI17bO0CGmTJZ1tstVy0+W3DQT1lbBkTTc++5LONM99D3jjn23l1ocOp folR53F7I4cb2RNfT23v1I59RH37lB9wMOqrKj0UjYAC2YoPGQ3BzsBNBFPirzMBCADXLWWp QihBldY6reca8ZKdc3T9qXEOa3akE3DWKztIBmNJhtYOjmpLYajQTkGa7UoJTnbmZE2Rn6ZE oNnvb0gcFNAIcY95KOI+bjOR8HEgh4cx2REXh6L6olIgyXqt/KFusE4wtVZAFxZl+30HzN6n D+1HvrjXxPJRX6MsIYOYyyX9/6OofwJK6QHODYGp8WL2olHDnmsXg4AT6Wlr7qKpKrQELlcF R4xkvdmgL/Ghw/tK0yJTxMIcewCCZWLPOXRmFRbvAadZWPAgVsJ63siNyUlVnVMSzDgTJl+s l/DMabXpqrJQx3/1Yy6mTaDs3XZT/wmBKaTLXx/LByaPxQQ7ABEBAAHCwF8EGAECAAkFAlPi rzMCGwwACgkQRlAu95aRcZWVPwgAqZT6iTXkoP37wYb41323RzhBcJ8JSk4cyBDBUXX0lMrM 3qhiClKG7phpxVdu817Gwc6Hsecg7FfjQAV8MHQ0ZFeEFdk3b2rKBqfsStc+h49/xF3Fb+if CzR9qeQF82fMSxkg18++7hMcHCMO/hPZ/Q0xRi+lrSr2QKDJQuLzSyVU14TxrCkevZjEhtma VNvcJlJzCbiBXee9Fpc5jITUXPFG8E8dxqo1n+duOyIMgozrAnzP7X5V/Ob/Ozf/aGGX9+Jd inyfCX18nWcHALKMU/36Eua/ylalf/2c2YkBp9KCLVmGgPkUgW52EeRPgroIsiwu+rwCSV6Z UyCJ+OymCg== Message-ID: Date: Wed, 24 Oct 2018 01:16:57 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:eSeQ7UwXHq6t9ONYL2IrgUrNF59og8nlGn+zwEf7TgJ4Mdu8Ija DJR04jHQfuTD54884m/glxCTqPF/J6XhC6WZPDM4FFfo+Uy6//4Qy2zigR2Ru/JgWYPgr/V hxAOqAMejtGCTj9BygSrjDQWXnb9g6zNoYSXP+v7Pc/jS6tJyI4o8Uikj/cVI6IrXq8vue+ U1UDvNAQLueeeQOf0uTxA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V01:K0:RNXNmvp7XmY=:TtqnYXfZXZ53ZgWZ2TXgH1 k13zGFOXOXby54ehs08aH0O9ah4jD6C/dX/hkslKAh1ZdfQvAyCM7m2IfQS9fPzaqzuuvcgGJ EjloeSfNGDPxuwxAEx/cM+ocbmDX9NQJsMpFu7Gq8rb77Gfio19YVO9zPbgPP86GMC0px7Hg1 M9qP0h2UnowTA4PqlPb4mfoEkwCBBRbikLitHWLlLBKbe4KK2L0iZ899/DikIMaEz6QX7KBn3 dAhs5T+MbQfo6VxJk0ZRyGw61hWOYih+o5CZ7PhwE10vlMdy9+V1m6IDqUDaD9X2avWWs87nG QJqvqOb8vk2FJ4v5qiskgAnfLbByrhQT4C79rBj6kP63AEqjiZsr9jwHw3VRJdFt263UqBjol xjp3Xpx02l1dWy6FiLX9fYptk8nsi9oq1KlK67REabUQxyiq4sBFv4tB+zA1E8iWv9KoPLD4F YI7P/w6BY6B9cThbU89P4trURO4UNLzggMneMQzs4TIelpk0ulY/gKZ58mFMlskzBGh0pp3RF VGy6t5Rq7HNX7wQ7EJxTde1wJa90LBvXcSrRHQ9nLRn4WWCMNsIgbkcSMsdobiY1loLOZPbaV 635muqaCPTxFJQ6PHnJARVbtmyg8zLgUgMVOvGVpMa3RTg4lMIlsO+8M+Apr1VexfGDrr6Vrg DRRheM919SK3jctNj+gL5bWvs01sKTv/1ERY/4qJW81dSgJO1YKDe2zjDc1Pvx6dKNLMpe7f1 Qn5BTwhfFq80tn0a X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) reassign 33062 grep stop On 10/16/18 2:55 PM, Johannes Riecken wrote: > Dear maintainers: > > *Bug summary: *GNU grep 3.0-2 matches too lazily when invoked with -zoP and > matching backreference followed by newline > > *Steps to reproduce:* > > Create file cases: > > foo > bar > cases: > 1: foo > 2: bar > baz > cases: > 3: baz > quux > > And run grep -zoP '(\s*)cases:\n(\1.*\n)*' cases > > *Expected output:* > > cases: > 1: foo > 2: bar > cases: > 3: baz > > * Actual output:* > > cases: > > cases: > > Best regards, > > Johannes Riecken Thanks for the report, however, you reached the GNU coreutils mailing list, while your report is for 'grep'. I'm therefore reassigning this issue to the GNU 'grep' package. Have a nice day, Berny From unknown Sat Aug 16 21:19:20 2025 X-Loop: help-debbugs@gnu.org Subject: bug#33062: grep matches too lazily when invoked with -zoP and matching backreference followed by newline Resent-From: Bernhard Voelker Original-Sender: "Debbugs-submit" Resent-CC: bug-grep@gnu.org Resent-Date: Sun, 28 Oct 2018 10:32:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 33062 X-GNU-PR-Package: grep X-GNU-PR-Keywords: To: johannes.riecken@gmail.com, 33062@debbugs.gnu.org X-Debbugs-Original-To: Johannes Riecken , 33062@debbugs.gnu.org, bug-grep@gnu.org Received: via spool by submit@debbugs.gnu.org id=B.15407227188395 (code B ref -1); Sun, 28 Oct 2018 10:32:02 +0000 Received: (at submit) by debbugs.gnu.org; 28 Oct 2018 10:31:58 +0000 Received: from localhost ([127.0.0.1]:46728 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gGiMQ-0002BL-B9 for submit@debbugs.gnu.org; Sun, 28 Oct 2018 06:31:58 -0400 Received: from eggs.gnu.org ([208.118.235.92]:50261) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gGiMN-0002B6-21 for submit@debbugs.gnu.org; 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Sun, 28 Oct 2018 06:31:44 -0400 Received: from [192.168.101.10] ([91.12.166.119]) by mrelayeu.kundenserver.de (mreue109 [212.227.15.183]) with ESMTPSA (Nemesis) id 1MSbp1-1g9x9N0DLV-00SyCP; Sun, 28 Oct 2018 11:31:28 +0100 Received: from [192.168.101.10] ([91.12.166.119]) by mrelayeu.kundenserver.de (mreue109 [212.227.15.183]) with ESMTPSA (Nemesis) id 1MSbp1-1g9x9N0DLV-00SyCP; Sun, 28 Oct 2018 11:31:28 +0100 References: From: Bernhard Voelker Openpgp: preference=signencrypt Autocrypt: addr=mail@bernhard-voelker.de; prefer-encrypt=mutual; keydata= xsBNBFPirzMBCACyzYldTjQ4ufFOkByY5Nn5USb5GFoL48nWBwNHjd9KUbtRRNlQiPNKd6hK Gvd3BGi5aoFKA4ytfRk6jbAbW3jVb3R8wYaV08mOy4KVEKxqN4bxsXlMjNChXVR+rtKDmfI+ oPTL+cPH2X6gW4W02IRbVw0uUhNm6zEedC/gNrY/mTlf1enZ46jxZ7BTUZaG+kx38UMISIMB zSzLRtdkwgmHj4jS3p1fF2cwRqLclIfMjKGpbNFPEXeXKWrCLcqHw78795eAR9q0YvrDkfIn GdDBwfb3VM4NdulwIFzvYZMSXvSbbyPLB5YkHU5aAWQHUse4WlfT5ccDpbzUYldRAvF9ABEB AAHNK0Jlcm5oYXJkIFZvZWxrZXIgPG1haWxAYmVybmhhcmQtdm9lbGtlci5kZT7CwHkEEwEC ACMFAlPirzMCGwMHCwkIBwMCAQYVCAIJCgsEFgIDAQIeAQIXgAAKCRBGUC73lpFxle5wCACC dbs0QaJ0vR3Sff2cKdTk41rUq3YfWngsR///IOU0C5DdkePmCnJE/lUsUy0LRTxcUDLxQR+x QHU8ssRT0JUO9726dI3miy36UdsgmBYaOtLvQcidGmW1R7o0PYYf04+TFtyqKgngOUBPpMgR 6o4UsQxy/OD4bN1WDqOgIjL+D/qJpkKmgp6L6+hhaBCpiOFKRmmV7YyQ3SqVlfQNiHs5ZtkR nXpIjgZARV+GllKucI17bO0CGmTJZ1tstVy0+W3DQT1lbBkTTc++5LONM99D3jjn23l1ocOp folR53F7I4cb2RNfT23v1I59RH37lB9wMOqrKj0UjYAC2YoPGQ3BzsBNBFPirzMBCADXLWWp QihBldY6reca8ZKdc3T9qXEOa3akE3DWKztIBmNJhtYOjmpLYajQTkGa7UoJTnbmZE2Rn6ZE oNnvb0gcFNAIcY95KOI+bjOR8HEgh4cx2REXh6L6olIgyXqt/KFusE4wtVZAFxZl+30HzN6n D+1HvrjXxPJRX6MsIYOYyyX9/6OofwJK6QHODYGp8WL2olHDnmsXg4AT6Wlr7qKpKrQELlcF R4xkvdmgL/Ghw/tK0yJTxMIcewCCZWLPOXRmFRbvAadZWPAgVsJ63siNyUlVnVMSzDgTJl+s l/DMabXpqrJQx3/1Yy6mTaDs3XZT/wmBKaTLXx/LByaPxQQ7ABEBAAHCwF8EGAECAAkFAlPi rzMCGwwACgkQRlAu95aRcZWVPwgAqZT6iTXkoP37wYb41323RzhBcJ8JSk4cyBDBUXX0lMrM 3qhiClKG7phpxVdu817Gwc6Hsecg7FfjQAV8MHQ0ZFeEFdk3b2rKBqfsStc+h49/xF3Fb+if CzR9qeQF82fMSxkg18++7hMcHCMO/hPZ/Q0xRi+lrSr2QKDJQuLzSyVU14TxrCkevZjEhtma VNvcJlJzCbiBXee9Fpc5jITUXPFG8E8dxqo1n+duOyIMgozrAnzP7X5V/Ob/Ozf/aGGX9+Jd inyfCX18nWcHALKMU/36Eua/ylalf/2c2YkBp9KCLVmGgPkUgW52EeRPgroIsiwu+rwCSV6Z UyCJ+OymCg== Message-ID: Date: Sun, 28 Oct 2018 11:31:26 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:3+nGBiJ1IiZdu7BpNJRWvCbi5UBsOg7vGaK1eAOjFIKbEd6hHez r97glAkNnaD+TZd/FwBfRKU4g26HNMgf3JE9FZslBJfRw81VWBs2nmPJ1zsgluYhgP22sf4 OyD5x4mlpB/Qg5IPTSKlNGkV2BrMsqKQSp/7iO9heG2KMp/Hj/fjdy5TcR0PPURzW/OF7z+ QyPxwEsMmwk6+kLrJjZPQ== X-UI-Out-Filterresults: notjunk:1;V01:K0:2uYggWQk4lY=:XQ2BPfqznCcC1mKLd/Nbhk mvla5Ssmf9W8v5eM3twXLhdLgQxmc3p3TMVa0cBY9KPiAOLRx640QWN5Z1iB9AYdsAOGu/6pK Ro3AB7IByLVObU477hVvx+zxPyFezizWqROpN0abcZ/AZ9MNSPlPP0JveycfE1Ze5X1nNyZAg eedkYZF4E6RvWBa0gWVtVIqg49sPFaBsNMvnD1UKim1b5bdqYncy8vYzB/oZjtO58W+q7ezxQ 5I3C9iBCwgx/wyo160LMuMPrz/HoobvR1RGMCBHun13AwKCVpuMtlK24HTMV3g1r9p2bEt933 c7cilVOe6ds7mpjQygR7ncvx2OOk5nfsSpjYlmKkLaDYElMIbp31YccAGXi1UpHw0cMdVMouf i8QZtQgoANxFz4PGi4LMZcwoJi/oTm++AalIvuBvotK7btPBRmQGmcPGB5vzCdN3Wz8lzIi6w VQUrAh8erZ1GxsQ0Q0sOdjKPwu6egkVcfY3fenb+pIFyjkYuywsG/zNaOe/3I7zMTGJBDrHqQ P8Kjbxcn+yD72ruCe2tBf8svUfD5TVZ5KsrUcJgOPNA5yScEBCspre95rFVC1WIOCfp92QaCf YUNcvTR689mwrZ1xWggQZ0UkspIgY8WFJzLh1/3gfOg6VSpUW1TSg3XU4z3o9bHsqOYWQbXhm 6D1urHp+td1taZuzrlpFIN83+YAlZIFEOHwECWA5Yc8calzUjVydi79i9bMlNhJWZH0dgLnZh UOSlabtpZLCMxzBc X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -5.0 (-----) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -6.0 (------) On 10/28/18 8:32 AM, Johannes Riecken wrote: >> On Wed, Oct 24, 2018 at 1:17 AM Bernhard Voelker > wrote: >> reassign 33062 grep >> stop >>> On 10/16/18 2:55 PM, Johannes Riecken wrote: >>> Dear maintainers: >>> >>> *Bug summary: *GNU grep 3.0-2 matches too lazily when invoked with -zoP and >>> matching backreference followed by newline >>> >>> *Steps to reproduce:* >>> >>> Create file cases: >>> >>> foo >>> bar >>> cases: >>> 1: foo >>> 2: bar >>> baz >>> cases: >>> 3: baz >>> quux >>> >>> And run grep -zoP '(\s*)cases:\n(\1.*\n)*' cases >>> >>> *Expected output:* >>> >>> cases: >>> 1: foo >>> 2: bar >>> cases: >>> 3: baz >>> >>> * Actual output:* >>> >>> cases: >>> >>> cases: >>> >>> Best regards, >>> >>> Johannes Riecken >> >> Thanks for the report, however, you reached the GNU coreutils mailing list, >> while your report is for 'grep'. >> >> I'm therefore reassigning this issue to the GNU 'grep' package. > > Thank you, could you please tell me where I can check the progress of my bug report after the reassignment? I didn't see > it in the archives of the bug-grep mailing list. > > Best wishes, > Johannes Well, it's still in the same GNU bug tracker: https://bugs.gnu.org/33062 but it seems that the bug wasn't forwarded automatically to the bug-grep mailing list, thus adding that list explicitly ... hoping that this doesn't open another bug. Have a nice day, Berny From unknown Sat Aug 16 21:19:20 2025 X-Loop: help-debbugs@gnu.org Subject: bug#33062: grep matches too lazily when invoked with -zoP and matching backreference followed by newline Resent-From: Jim Meyering Original-Sender: "Debbugs-submit" Resent-CC: bug-grep@gnu.org Resent-Date: Sun, 28 Oct 2018 12:20:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 33062 X-GNU-PR-Package: grep X-GNU-PR-Keywords: To: johannes.riecken@gmail.com Cc: 33062@debbugs.gnu.org Received: via spool by 33062-submit@debbugs.gnu.org id=B33062.154072916926228 (code B ref 33062); Sun, 28 Oct 2018 12:20:02 +0000 Received: (at 33062) by debbugs.gnu.org; 28 Oct 2018 12:19:29 +0000 Received: from localhost ([127.0.0.1]:46764 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gGk2T-0006oy-6H for submit@debbugs.gnu.org; Sun, 28 Oct 2018 08:19:29 -0400 Received: from mail-wr1-f47.google.com ([209.85.221.47]:33951) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gGk2R-0006oi-9F for 33062@debbugs.gnu.org; Sun, 28 Oct 2018 08:19:27 -0400 Received: by mail-wr1-f47.google.com with SMTP id l6-v6so5706749wrt.1 for <33062@debbugs.gnu.org>; Sun, 28 Oct 2018 05:19:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=J/oahCyQycuSNuzM7pErUj+5kwcHcsG5Usx9mAwIwSQ=; b=qkSL9bfwq7BguX2eMljiHO5lMN6uLDgLoDV629gPhJF8Q1HZE7cW7ZyWi881BUTaLX IURjjEfI42D9GwI0QaXB9jojOZfiK5wphxMMaSEVyVaR9EuaiC/dD4X/5MH2338uDD8+ bIxpGUHJZzurxJnd8BDhrra9KQv8KexLAv3KHCvZ2VgMo4nrMZ2mS/EyDl4+QekTr5QS aTGJlcAY6hANyJBpr1hubuE3SEafN9vCv5xWFKCoYLaAStdkSGZqFI9BghFtzs5MB/+T IFtkkF/5cNVUi+badZanMOcECjRD1FsG0dpRWYTGvY/KbuNsGXaRvQcMMriYefzOWfA0 be7Q== X-Gm-Message-State: AGRZ1gLiWK7pxkFguquhjJP+cKjXNPfjxSTPIpgqNn5Vxg+6RghVNfs5 +BpbLxvrgL3tUTopjz0EJnOELAp+G7f0LCTurmk= X-Google-Smtp-Source: AJdET5dxGpvwvS+e+MSk1thE2IZGQpQWAssG6dMmoE2zMzjjpGrTkRDYUHP8j5xye5LecH5GchecfomRWlz0NPzqPRk= X-Received: by 2002:adf:e9c1:: with SMTP id l1-v6mr9981133wrn.58.1540729161528; Sun, 28 Oct 2018 05:19:21 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Jim Meyering Date: Sun, 28 Oct 2018 12:19:09 +0000 Message-ID: Content-Type: text/plain; charset="UTF-8" X-Spam-Score: 0.3 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.7 (/) tags 33062 notabug close 33062 stop On Tue, Oct 16, 2018 at 2:42 PM Johannes Riecken wrote: > *Bug summary: *GNU grep 3.0-2 matches too lazily when invoked with -zoP and > matching backreference followed by newline > > *Steps to reproduce:* > > Create file cases: > > foo > bar > cases: > 1: foo > 2: bar > baz > cases: > 3: baz > quux > > And run grep -zoP '(\s*)cases:\n(\1.*\n)*' cases > > *Expected output:* > > cases: > 1: foo > 2: bar > cases: > 3: baz > > * Actual output:* > > cases: > > cases: Thanks for the report. However, this is not a bug. The \s in your regexp matches the preceding newline, too, and that forces the behavior you see. I presume you wanted something like this: $ printf '%s\n' foo bar ' cases:' ' 1: foo' ' 2: bar' baz ' cases:' ' 3: baz' quux\ | grep -zoP '( *)cases:\n(\1.*\n)*' cases: 1: foo 2: bar cases: 3: baz The adjusted regexp works because it accepts only spaces in the group. Don't be tempted to allow TABs, but rather ensure the input is expanded to use only spaces for indentation. From debbugs-submit-bounces@debbugs.gnu.org Wed Jan 01 20:11:14 2020 Received: (at control) by debbugs.gnu.org; 2 Jan 2020 01:11:14 +0000 Received: from localhost ([127.0.0.1]:37847 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1imp18-0004Og-29 for submit@debbugs.gnu.org; Wed, 01 Jan 2020 20:11:14 -0500 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:38676) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1imp15-0004OP-6q for control@debbugs.gnu.org; Wed, 01 Jan 2020 20:11:12 -0500 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 67251160052 for ; Wed, 1 Jan 2020 17:11:05 -0800 (PST) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id AIvGrwANjsCL for ; Wed, 1 Jan 2020 17:11:04 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id CCCA3160054 for ; Wed, 1 Jan 2020 17:11:04 -0800 (PST) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id ZFuchMQjFthr for ; Wed, 1 Jan 2020 17:11:04 -0800 (PST) Received: from [192.168.1.10] (cpe-23-242-74-103.socal.res.rr.com [23.242.74.103]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id ADB91160052 for ; Wed, 1 Jan 2020 17:11:04 -0800 (PST) To: control@debbugs.gnu.org From: Paul Eggert Subject: 33062 is not a bug Organization: UCLA Computer Science Department Message-ID: <75ffe340-209b-4d97-d29a-f5bb4eadcff9@cs.ucla.edu> Date: Wed, 1 Jan 2020 17:11:04 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: control X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) tags 33062 notabug close 33062 stop