Paul Eggert <eggert@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Received: (at 74502-done) by debbugs.gnu.org; 21 Mar 2025 20:25:49 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Mar 21 16:25:49 2025 Received: from localhost ([127.0.0.1]:39698 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tviw5-0001z7-Is for submit <at> debbugs.gnu.org; Fri, 21 Mar 2025 16:25:49 -0400 Received: from mail.cs.ucla.edu ([131.179.128.66]:54846) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eggert@HIDDEN>) id 1tviw2-0001yp-45 for 74502-done <at> debbugs.gnu.org; Fri, 21 Mar 2025 16:25:43 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.cs.ucla.edu (Postfix) with ESMTP id 8AC1D3C010866; Fri, 21 Mar 2025 13:25:35 -0700 (PDT) Received: from mail.cs.ucla.edu ([127.0.0.1]) by localhost (mail.cs.ucla.edu [127.0.0.1]) (amavis, port 10032) with ESMTP id K_tDmXX31EKZ; Fri, 21 Mar 2025 13:25:35 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by mail.cs.ucla.edu (Postfix) with ESMTP id DEAE33C010868; 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Fri, 21 Mar 2025 13:25:34 -0700 (PDT) Content-Type: multipart/mixed; boundary="------------1sP1zRnSTSq0S012eXnIrL6L" Message-ID: <1eb35e11-2cf7-4373-b64a-6f2ef169e1ff@HIDDEN> Date: Fri, 21 Mar 2025 13:25:34 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: bug#74502: grep.in.1: Some remarks about this man page From: Paul Eggert <eggert@HIDDEN> To: Bjarni Ingi Gislason <bjarniig@HIDDEN> References: <173240980709.75873.7649836842735298032.reportbug@HIDDEN> <e2fde067-39e6-4c15-8f8f-c179f70708e6@HIDDEN> Content-Language: en-US Autocrypt: addr=eggert@HIDDEN; keydata= xsFNBEyAcmQBEADAAyH2xoTu7ppG5D3a8FMZEon74dCvc4+q1XA2J2tBy2pwaTqfhpxxdGA9 Jj50UJ3PD4bSUEgN8tLZ0san47l5XTAFLi2456ciSl5m8sKaHlGdt9XmAAtmXqeZVIYX/UFS 96fDzf4xhEmm/y7LbYEPQdUdxu47xA5KhTYp5bltF3WYDz1Ygd7gx07Auwp7iw7eNvnoDTAl KAl8KYDZzbDNCQGEbpY3efZIvPdeI+FWQN4W+kghy+P6au6PrIIhYraeua7XDdb2LS1en3Ss mE3QjqfRqI/A2ue8JMwsvXe/WK38Ezs6x74iTaqI3AFH6ilAhDqpMnd/msSESNFt76DiO1ZK QMr9amVPknjfPmJISqdhgB1DlEdw34sROf6V8mZw0xfqT6PKE46LcFefzs0kbg4GORf8vjG2 Sf1tk5eU8MBiyN/bZ03bKNjNYMpODDQQwuP84kYLkX2wBxxMAhBxwbDVZudzxDZJ1C2VXujC OJVxq2kljBM9ETYuUGqd75AW2LXrLw6+MuIsHFAYAgRr7+KcwDgBAfwhPBYX34nSSiHlmLC+ KaHLeCLF5ZI2vKm3HEeCTtlOg7xZEONgwzL+fdKo+D6SoC8RRxJKs8a3sVfI4t6CnrQzvJbB n6gxdgCu5i29J1QCYrCYvql2UyFPAK+do99/1jOXT4m2836j1wARAQABzSBQYXVsIEVnZ2Vy dCA8ZWdnZXJ0QGNzLnVjbGEuZWR1PsLBlQQTAQgAPwIbAwYLCQgHAwIGFQgCCQoLBBYCAwEC HgECF4AWIQR+N5Kp2Kz31jO8FYjtl+kOYqp+NAUCZiLOewUJHWQLDAAKCRDtl+kOYqp+NHGE D/9Wmbk+cAaQsYLPGBvyzIjZIRzo/V2p3ZwckVA1VEQivx5azu1cs86qDoVIe45AtwmKOvdV wTQd/QeglkZR6D2YPW7UR/7emajyJZZcy+etVTDKoaw1i6/hmd/CpGjUeUSvgoPs6nYR+1lo pSXTpaGrh1W0qQHalSkOOwCHG3HtGk9Ve2AERDUYxmcn8/eZHb7xpUJEJMBBI1bx/zcw1EtB rjsQ1R1faJ/r/7LPAyV36RLvnbX69PylHKQEbJoaY9aUb2Vpm63ni3FeTA7/3jpPvaSRWHJh vPYx6Fm2Ln8pI0Yf/W2B8QMiPTnF/LnH2kvUcf9VXm+1mQJ3fBFU25HZwBhuqZ24IeKymPEt BUMQAum97Dto0jSgR2OUvX7z+twhpQEgRGBzPHYwDi4SxF5Z4Q5Y7B7a++HP9tIxG6CVFIwI 4xVaZud18bPa0YBL+cISmMgxq7h7yoVXl6u3pm9Yiv+W6Lp9QGN8Rw1VuJMOoFCYuoxG8mXO TA5b1jvlQ32gHFFhqErDAhNJRsfgrpe9Gok4Ycp+rWljbvS5Wrl0uth5MP7FbaHN2kmTZibq KXAd//IqczhDyU6qnW6ao+h4iDBDgYgRbQjmToX/vmIdEMzvPGqWXKhe/q1TYMuOO+IfP+bI fyPFH29nVN/o9c4J7myeKvv3HKSXdSVjlh2V787BTQRMgHJkARAApoXrvxP3DIfjCNOtXU/P dwMShKdX/RlSs5PfunV1wbKP8herXHrvQdFVqECaTSxmlhzbk8X0PkY9gcVaU2O49T3qsOd1 cHeF52YFGEt0LhsBeMjgNX5uZ1V76r8gyeVlFpWWb0SIwJUBHrDXexF67upeRb2vdHBjYDNe ySn+0B7gFEqvVmZu+LadudDp6kQLjatFvHQHUSGNshBnkkcaTbiI9Pst0GCc2aiznBiPPA2W QxAPlPRh3OGTsn5THADmbjqY6FEMLasVX8DSCblMvLwNeO/8SxziBidhqLpJCqdQRWHku5Xx gIkGeKOz5OLDvXHWJyafrEYjjkS6Ak6B5z6svKliClWnjHQcjlPzyoFFgKTEfcqDxCj4RY0D 0DgtFD0NfyeOidrSB/SzTe2hwryQE3rpSiqo+0cGdzh4yAHKYJ+UrXZ4p93ZhjGfKD1xlrNY DlWyW9PGmbvqFuDmiIAQf9WD/wzEfICc+F+uDDI+uYkRxUFp92ykmdhDEFg1yjYsU8iGU69a Hyvhq36z4zctvbqhRNzOWB1bVJ/dIMDvsExGcXQVDIT7sDNXv0wE3jKSKpp7NDG1oXUXL+2+ SF99Kjy753AbQSAmH617fyBNwhJWvQYg+mUvPpiGOtses9EXUI3lS4v0MEaPG43flEs1UR+1 rpFQWVHo1y1OO+sAEQEAAcLBfAQYAQgAJgIbDBYhBH43kqnYrPfWM7wViO2X6Q5iqn40BQJm Is58BQkdZAsMAAoJEO2X6Q5iqn40Q68QAJ9GubS/ej30Vc4idoZdc0IyMcL7kQJbMohF+Tyn ZE+TGn9WvzP10yLyzoI0vNlcNfP92d2MS//pFjOuANb5mwyiEYA+rDZIdS4ZZpHxCs2sxMC4 afLCf3kv4aMnTeBvb9na403dlczz9cAacvsmniSFdpb1+BzMpYbybglU5oYMGhYT2nnCRjXN 6S2nKYt4mjJeeOuxHrdeqQQdVBNYeNfTcPePeqvZ2+bD6u9yxZtaV+wxdpqglosQvjqhOYz7 h50/ZTSq70/npoCq44TzdJKttaYvlW6ziRz0g4RRAqZyoxjYXiy5qj8r8zXJuB11ApZCGuKn /usbji9RYbflAhxFeh4LMmpDVi6BrF30b73Md59K7PuEKN1NxzlWiqqQHZZ9momN0GXLPcGq 4uyfq7yVEy7wP5PMOh6oqscKklE3gFQtq0P1Ki0xqdF6Fq5LPJc+0Db2CYkVIy7Xaa/f74I3 sOfQfEeDylVXR5iDfUJEYv/0DYhOr7q5/0b1kh3M4wkrB4C5jVNHjIIj+RsAK90c3t38OhAl jiSN7Bkwy24Afy8eIu6wWzvhnsQGpZPB+IffmxT1wkTy8UxZKjUWV0C82iphVgCUUi2f9sDV Q/tNcwVWmOS+gdv9Wk6tdGeM+Ee+Qs6YG05jcSoajzF0TL07ajLcayRq2j1Os2CtQ8qu Organization: UCLA Computer Science Department In-Reply-To: <e2fde067-39e6-4c15-8f8f-c179f70708e6@HIDDEN> X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 74502-done Cc: 74502-done <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) This is a multi-part message in MIME format. --------------1sP1zRnSTSq0S012eXnIrL6L Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 11/23/24 18:17, Paul Eggert wrote: > that's a recently-introduced groff bug. I reported it here: > > https://savannah.gnu.org/bugs/index.php?66481 From the followup to that groff bug report, it appears that the groff maintainers don't consider this to be a bug, though they do say it is a compatibility issue. To work around this for grep, I installed the first attached patch. I noticed some other glitches too (some with traditional troff) and installed the second attached patch while I was in the neighborhood. Closing the bug report. Thanks again for reporting the issue. --------------1sP1zRnSTSq0S012eXnIrL6L Content-Type: text/x-patch; charset=UTF-8; name="0001-doc-use-w-.-not-w.patch" Content-Disposition: attachment; filename="0001-doc-use-w-.-not-w.patch" Content-Transfer-Encoding: base64 RnJvbSA5ODYzZDUzYTVmYzkyNzdiZWIzZGJjOTdlNDM0ZDM5NmIzNGMyYTZlIE1vbiBTZXAg MTcgMDA6MDA6MDAgMjAwMQpGcm9tOiBQYXVsIEVnZ2VydCA8ZWdnZXJ0QGNzLnVjbGEuZWR1 PgpEYXRlOiBGcmksIDIxIE1hciAyMDI1IDEwOjAxOjA2IC0wNzAwClN1YmplY3Q6IFtQQVRD SCAxLzJdIGRvYzogdXNlIFx3QC4uLkAgbm90IFx3fC4uLnwKCiogZG9jL2dyZXAuaW4uMTog QXZvaWQgd2FybmluZ3MgaW4gYmxlZWRpbmctZWRnZSBncm9mZi4KLS0tCiBkb2MvZ3JlcC5p bi4xIHwgNCArKy0tCiAxIGZpbGUgY2hhbmdlZCwgMiBpbnNlcnRpb25zKCspLCAyIGRlbGV0 aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RvYy9ncmVwLmluLjEgYi9kb2MvZ3JlcC5pbi4xCmlu ZGV4IDc4OWNmNWEuLmQwZjc1N2QgMTAwNjQ0Ci0tLSBhL2RvYy9ncmVwLmluLjEKKysrIGIv ZG9jL2dyZXAuaW4uMQpAQCAtMTEsNyArMTEsNyBAQAogLgogLlRIIEdSRVAgMSBcKihEdCAi R05VIGdyZXAgQFZFUlNJT05AIiAiVXNlciBDb21tYW5kcyIKIC4KLS5pZiAhXHd8XCoobHF8 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Bjarni Ingi Gislason <bjarniig@HIDDEN>:Paul Eggert <eggert@HIDDEN>:Received: (at 74502) by debbugs.gnu.org; 24 Nov 2024 02:17:54 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Nov 23 21:17:54 2024 Received: from localhost ([127.0.0.1]:60135 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1tF2CA-0004Zp-8D for submit <at> debbugs.gnu.org; Sat, 23 Nov 2024 21:17:54 -0500 Received: from mail.cs.ucla.edu ([131.179.128.66]:44608) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eggert@HIDDEN>) id 1tF2C2-0004ZM-7s for 74502 <at> debbugs.gnu.org; Sat, 23 Nov 2024 21:17:51 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.cs.ucla.edu (Postfix) with ESMTP id ECB4B3C00FA8A; Sat, 23 Nov 2024 18:17:39 -0800 (PST) Received: from mail.cs.ucla.edu ([127.0.0.1]) by localhost (mail.cs.ucla.edu [127.0.0.1]) (amavis, port 10032) with ESMTP id G31T3_AbWSot; Sat, 23 Nov 2024 18:17:39 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by mail.cs.ucla.edu (Postfix) with ESMTP id 9C47C3C03E9EF; Sat, 23 Nov 2024 18:17:39 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.10.3 mail.cs.ucla.edu 9C47C3C03E9EF DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cs.ucla.edu; s=9D0B346E-2AEB-11ED-9476-E14B719DCE6C; t=1732414659; bh=43uymxZDD1/qzq7oKYmDlFsiRm4RGzP3rcpqO8j65P8=; h=Message-ID:Date:MIME-Version:To:From; b=Isa/JqL3uLlNkGwdW3G4WYZGF56ucADJLeR40O7LyWqoJL0dxIKxGUV9csx6Pm6U4 fdapBq/z5ztgmL3Im84t+ZrmknbBQfPayt6LOjsceLI4S2F4uuhAEziLa8AxXBywcE DXL2NQemZlPR0c0v07hcP1h8NGDoVensj056/vGOQX16JXmd2JKZeROJxlcEaEaasJ A1CcRvOjTz+viEHTrGq63w4tMBng6Apk+AkhiC+2ulsJ/Fq3CpcAyyrPCE3Hqm8IAo cy+fEQmhnSmEa0zwnFNdXY52np3L2/N5eEEJ7uumjgoDJhfiuBMCey47OtpD8aQKYK n2CDcFokV77mw== X-Virus-Scanned: amavis at mail.cs.ucla.edu Received: from mail.cs.ucla.edu ([127.0.0.1]) by localhost (mail.cs.ucla.edu [127.0.0.1]) (amavis, port 10026) with ESMTP id BRnBjI2ZXW5t; Sat, 23 Nov 2024 18:17:39 -0800 (PST) Received: from [192.168.254.12] (unknown [47.154.27.134]) by mail.cs.ucla.edu (Postfix) with ESMTPSA id 80D173C00FA8A; Sat, 23 Nov 2024 18:17:39 -0800 (PST) Message-ID: <e2fde067-39e6-4c15-8f8f-c179f70708e6@HIDDEN> Date: Sat, 23 Nov 2024 18:17:39 -0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: bug#74502: grep.in.1: Some remarks about this man page To: Bjarni Ingi Gislason <bjarniig@HIDDEN> References: <173240980709.75873.7649836842735298032.reportbug@HIDDEN> Content-Language: en-US From: Paul Eggert <eggert@HIDDEN> Organization: UCLA Computer Science Department In-Reply-To: <173240980709.75873.7649836842735298032.reportbug@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 74502 Cc: 74502 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Thanks, but that's a recently-introduced groff bug. I reported it here: https://savannah.gnu.org/bugs/index.php?66481
bug-grep@HIDDEN:bug#74502; Package grep.
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Date: Sun, 24 Nov 2024 01:06:23 +0000
From: Bjarni Ingi Gislason <bjarniig@HIDDEN>
To: bug-grep@HIDDEN
Subject: grep.in.1: Some remarks about this man page
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--k9aK/vUGfkRbR4VJ
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Package: grep
Version: upstream
Severity: minor
Following comes from the next version of "groff" (> 1.23.0).
* What led up to the situation?
Checking for defects with
test-[g|n]roff -mandoc -t -K utf8 -rF0 -rHY=0 -ww -b -z < "man page"
[Use "groff -e ' $' <file>" to find trailing spaces.]
["test-groff" is a script in the repository for "groff"; is not shipped]
(local copy and "troff" slightly changed by me).
[The fate of "test-nroff" was decided in groff bug #55941.]
* What was the outcome of this action?
troff: backtrace: file '<stdin>':14
troff:<stdin>:14: error: character '|' is not allowed as a delimiter
troff: backtrace: file '<stdin>':15
troff:<stdin>:15: warning: missing closing delimiter in output comparison operator; expected a special character, got a newline
troff: backtrace: file '<stdin>':27
troff:<stdin>:27: error: character '|' is not allowed as a delimiter
troff: backtrace: file '<stdin>':27
troff:<stdin>:27: warning: expected numeric expression, got a space
* What outcome did you expect instead?
No output (no warnings).
-.-
General remarks and further material, if a diff-file exist, are in the
attachments.
--k9aK/vUGfkRbR4VJ
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment; filename="chk_man.err.grep.in.1"
Input file is grep.in.1
Any program (person), that produces man pages, should check the output
for defects by using (both groff and nroff)
[gn]roff -mandoc -t -ww -b -z -K utf8 <man page>
The same goes for man pages that are used as an input.
For a style guide use
mandoc -T lint
-.-
So any 'generator' should check its products with the above mentioned
'groff', 'mandoc', and additionally with 'nroff ...'.
This is just a simple quality control measure.
The 'generator' may have to be corrected to get a better man page,
the source file may, and any additional file may.
Common defects:
Input text line longer than 80 bytes.
Not removing trailing spaces (in in- and output).
The reason for these trailing spaces should be found and eliminated.
Not beginning each input sentence on a new line.
Lines should thus be shorter.
See man-pages(7), item 'semantic newline'.
-.-
The difference between the formatted output of the original and patched file
can be seen with:
nroff -mandoc <file1> > <out1>
nroff -mandoc <file2> > <out2>
diff -u <out1> <out2>
and for groff, using
"printf '%s\n%s\n' '.kern 0' '.ss 12 0' | groff -mandoc -Z - "
instead of 'nroff -mandoc'
Add the option '-t', if the file contains a table.
Read the output of 'diff -u' with 'less -R' or similar.
-.-.
If 'man' (man-db) is used to check the manual for warnings,
the following must be set:
The option "-warnings=w"
The environmental variable:
export MAN_KEEP_STDERR=yes (or any non-empty value)
or
(produce only warnings):
export MANROFFOPT="-ww -b -z"
export MAN_KEEP_STDERR=yes (or any non-empty value)
-.-
Output from "test-groff -mandoc -t -ww -b -z grep.in.1 ": (shortened list)
2 character '|' is not allowed as a delimiter
1 expected numeric expression, got a space
-.-.
-.-.
Output from "test-groff -mandoc -t -K utf8 -rF0 -rHY=0 -ww -b -z ":
troff: backtrace: file '<stdin>':14
troff:<stdin>:14: error: character '|' is not allowed as a delimiter
troff: backtrace: file '<stdin>':15
troff:<stdin>:15: warning: missing closing delimiter in output comparison operator; expected a special character, got a newline
troff: backtrace: file '<stdin>':27
troff:<stdin>:27: error: character '|' is not allowed as a delimiter
troff: backtrace: file '<stdin>':27
troff:<stdin>:27: warning: expected numeric expression, got a space
--k9aK/vUGfkRbR4VJ--
Bjarni Ingi Gislason <bjarniig@HIDDEN>:bug-grep@HIDDEN.
Full text available.bug-grep@HIDDEN:bug#74502; Package grep.
Full text available.
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
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