newsgrep - News: grep-2.27 released [stable]

 
 
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grep-2.27 released [stable]

Item posted by Jim Meyering <meyering> on Wed 07 Dec 2016 07:42:33 AM UTC.

This is to announce grep-2.27, a stable release.

There have been 40 commits by 4 people in the 9 weeks since 2.26.
Note that there were many additional important changes via gnulib.

See the NEWS below for a brief summary.

Thanks to everyone who has contributed!
The following people contributed changes to this release:

  Jim Meyering (11)
  Mark Veltzer (2)
  Paul Eggert (26)
  Zev Weiss (1)

Jim [on behalf of the grep maintainers]
==================================================================

Here is the GNU grep home page:
    http://gnu.org/s/grep/

For a summary of changes and contributors, see:
  http://git.sv.gnu.org/gitweb/?p=grep.git;a=shortlog;h=v2.27
or run this command from a git-cloned grep directory:
  git shortlog v2.26..v2.27

To summarize the 98 gnulib-related changes, run these commands
from a git-cloned grep directory:
  git checkout v2.27
  git submodule summary v2.26

Here are the compressed sources and a GPG detached signature[*]:
  http://ftp.gnu.org/gnu/grep/grep-2.27.tar.xz
  http://ftp.gnu.org/gnu/grep/grep-2.27.tar.xz.sig

Use a mirror for higher download bandwidth:
  http://ftpmirror.gnu.org/grep/grep-2.27.tar.xz
  http://ftpmirror.gnu.org/grep/grep-2.27.tar.xz.sig

[*] Use a .sig file to verify that the corresponding file (without the
.sig suffix) is intact.  First, be sure to download both the .sig file
and the corresponding tarball.  Then, run a command like this:

  gpg --verify grep-2.27.tar.xz.sig

If that command fails because you don't have the required public key,
then run this command to import it:

  gpg --keyserver keys.gnupg.net --recv-keys 7FD9FCCB000BEEEE

and rerun the 'gpg --verify' command.

This release was bootstrapped with the following tools:
  Autoconf 2.69.171-527f1
  Automake 1.99a
  Gnulib v0.1-995-gca3ca77

NEWS

* Noteworthy changes in release 2.27 (2016-12-06) [stable]

** Bug fixes

  grep no longer reports a false match in a multibyte, non-UTF8 locale
  like zh_CN.gb18030, with a regular expression like ".*7" that just
  happens to match the 4-byte representation of gb18030's \uC9, the
  final byte of which is the digit "7".
  [bug introduced in grep-2.19]

  grep by default now reads all of standard input if it is a pipe,
  even if this cannot affect grep's output or exit status.  This works
  better with nonportable scripts that run "PROGRAM | grep PATTERN
  >/dev/null" where PROGRAM dies when writing into a broken pipe.
  [bug introduced in grep-2.26]

  grep no longer mishandles ranges in nontrivial unibyte locales.
  [bug introduced in grep-2.26]

  grep -P no longer attempts multiline matches.  This works more
  intuitively with unusual patterns, and means that grep -Pz no longer
  rejects patterns containing ^ and $ and works when combined with -x.
  [bugs introduced in grep-2.23] A downside is that grep -P is now
  significantly slower, albeit typically still faster than pcregrep.

  grep -m0 -L PAT FILE now outputs "FILE".  [bug introduced in grep-2.5]

  To output ':' and tab-align the following character C, grep -T no
  longer outputs tab-backspace-':'-C, an approach that has problems if
  run inside an Emacs shell window.  [bug introduced in grep-2.5.2]

  grep -T now uses worst-case widths of line numbers and byte offsets
  instead of guessing widths that might not work with larger files.
  [bug introduced in grep-2.5.2]

  grep's use of getprogname no longer causes a build failure on HP-UX.

** Improvements

  grep no longer reads the input in a few more cases when it is easy
  to see that matching cannot succeed, e.g., 'grep -f /dev/null'.

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