[Bug 1547466] Re: grep switches into binary mode while processing a text file

[Stefan Bader]

Brian, did you set a non-UTF language?

apt-cache policy grep
grep:
  Installed: 2.23-1
  Candidate: 2.23-1
  Version table:
 *** 2.23-1 500
        500 http://de.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

LANG=C grep -v xxx grant_table.h
...
 * table are identified by grant references. A grant reference is an
 * integer, which indexes into the grant table. It acts as a
 * capability which the grantee can use to perform operations on the
Binary file grant_table.h matches

** Changed in: grep (Ubuntu)
       Status: Incomplete => New

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https://bugs.launchpad.net/bugs/1547466

Title:
  grep switches into binary mode while processing a text file

Status in grep package in Ubuntu:
  New

Bug description:
  I noticed this staring to happen in Xenial about two days ago. When
  running sbuild (or now the buildd, too), the build breaks when trying
  to compile a generated file. I traced the problem down to grep
  suddenly acting weird. When not having any language set (or a non-UTF8
  mode) it will start printing some lines of a source file and then
  suddenly end that by printing "Binary file ... matches".

  With the attached file, the difference can be observed (running
  Xenial):

  LANG=C grep -v xxx grant_table.h

  and

  LANG=C.UTF-8 grep -v xxx grant_table.h

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