GNU bug report logs - #43782
in egrep (grep 3.0), the order of include & exclude is surprisingly significant

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: John Ruckstuhl <John.Ruckstuhl <at> intusurg.com>
Subject: bug#43782: closed (Re: bug#43782: in egrep (grep 3.0), the order
 of include & exclude is surprisingly significant)
Date: Sat, 03 Oct 2020 19:45:02 +0000

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Your bug report

#43782: in egrep (grep 3.0), the order of include & exclude is surprisingly significant

which was filed against the grep package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 43782 <at> debbugs.gnu.org.

-- 
43782: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=43782
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: John Ruckstuhl <John.Ruckstuhl <at> intusurg.com>
Cc: 43782-done <at> debbugs.gnu.org
Subject: Re: bug#43782: in egrep (grep 3.0), the order of include & exclude is
 surprisingly significant
Date: Sat, 3 Oct 2020 12:44:22 -0700

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On 10/3/20 12:00 PM, John Ruckstuhl wrote:
> In egrep (grep 3.0), the order of options (multiple --include and --exclude), is surprisingly significant.
> I was puzzled by 5 extra output lines in my first egrep,
> so I did another egrep, with the --include moved up front.

That's expected behavior, but it's not documented and should be. Thanks for 
bringing it up. I installed the attached doc patch.

[0001-doc-document-include-exclude-better.patch (text/x-patch, attachment)]

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From: John Ruckstuhl <John.Ruckstuhl <at> intusurg.com>
To: "bug-grep <at> gnu.org" <bug-grep <at> gnu.org>
Subject: in egrep (grep 3.0), the order of include & exclude is surprisingly
 significant
Date: Sat, 3 Oct 2020 19:00:49 +0000

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In egrep (grep 3.0), the order of options (multiple --include and --exclude), is surprisingly significant.
I was puzzled by 5 extra output lines in my first egrep,
so I did another egrep, with the --include moved up front.
Known bug?
Yes, I realize that the include by itself would have been sufficient, the exclude in this case is superfluous.
Thx,
John R.

Report bugs to: bug-grep <at> gnu.org
Report Cygwin bugs to: cygwin <at> cygwin.com
GNU grep home page: <http://www.gnu.org/software/grep/>
General help using GNU software: <http://www.gnu.org/gethelp/>

      johnru <at> ISIMFGDEV400 /cygdrive/c/Program Files (x86)/foxtrot/EC Test SW (750390-mango)
      $ egrep -r -i -n -l --exclude="*.bak" --include="*.py" "\.name\b|testname" ISITestFramework | cat -n
           1  ISITestFramework/DUT/CameraModule/CameraModule/CameraModule.py
           2  ISITestFramework/DUT/CameraModule/CameraModule/CameraModule_0.py
           3  ISITestFramework/DUT/EC/EC.py
           4  ISITestFramework/DUT/Endoscope/Endoscope.py
           5  ISITestFramework/DUT/GenericDUT.py
           6  ISITestFramework/DUT/LightEngine/LightEngine/LightEngine.py
      !!   7  ISITestFramework/HTML/BatFileUtils.html
      !!   8  ISITestFramework/HTML/Libs/jquery/1.12.2/jquery.min.js
           9  ISITestFramework/IQOQDQUtils.py
      !!  10  ISITestFramework/Reports/ReportTemplates/Libraries/GoogleChartsJsapi.js
      !!  11  ISITestFramework/Reports/ReportTemplates/Libraries/jquery-latest.min.js
      !!  12  ISITestFramework/Reports/ReportTemplates/TestResultsSimple.html
          13  ISITestFramework/Reports/ReportTools.py
          14  ISITestFramework/Reports/ReportUtils.py
          15  ISITestFramework/Reports/SummaryMetricWriter.py
          16  ISITestFramework/Test.py
          17  ISITestFramework/TestTools.py

      johnru <at> ISIMFGDEV400 /cygdrive/c/Program Files (x86)/foxtrot/EC Test SW (750390-mango)
      $ egrep -r -i -n -l --include="*.py" --exclude="*.bak" "\.name\b|testname" ISITestFramework | cat -n
           1  ISITestFramework/DUT/CameraModule/CameraModule/CameraModule.py
           2  ISITestFramework/DUT/CameraModule/CameraModule/CameraModule_0.py
           3  ISITestFramework/DUT/EC/EC.py
           4  ISITestFramework/DUT/Endoscope/Endoscope.py
           5  ISITestFramework/DUT/GenericDUT.py
           6  ISITestFramework/DUT/LightEngine/LightEngine/LightEngine.py
           7  ISITestFramework/IQOQDQUtils.py
           8  ISITestFramework/Reports/ReportTools.py
           9  ISITestFramework/Reports/ReportUtils.py
          10  ISITestFramework/Reports/SummaryMetricWriter.py
          11  ISITestFramework/Test.py
          12  ISITestFramework/TestTools.py

      johnru <at> ISIMFGDEV400 /cygdrive/c/Program Files (x86)/foxtrot/EC Test SW (750390-mango)
      $ egrep --version
      grep (GNU grep) 3.0
      Packaged by Cygwin (3.0-2)
      Copyright (C) 2017 Free Software Foundation, Inc.
      License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
      This is free software: you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.

      Written by Mike Haertel and others, see <http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.

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