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This is to announce grep-2.21, a stable release.
There have been 94 commits by 3 people in the 25 weeks since 2.20.
See the NEWS below for a brief summary.
Thanks to everyone who has contributed!
The following people contributed changes to this release:
Jim Meyering (26)
Norihiro Tanaka (17)
Paul Eggert (51)
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=v2.21
or run this command from a git-cloned grep directory:
git shortlog v2.20..v2.21
To summarize the 123 gnulib-related changes, run these commands
from a git-cloned grep directory:
git checkout v2.21
git submodule summary v2.20
Here are the compressed sources and a GPG detached signature[*]:
http://ftp.gnu.org/gnu/grep/grep-2.21.tar.xz
http://ftp.gnu.org/gnu/grep/grep-2.21.tar.xz.sig
Use a mirror for higher download bandwidth:
http://ftpmirror.gnu.org/grep/grep-2.21.tar.xz
http://ftpmirror.gnu.org/grep/grep-2.21.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-2.21.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 2.69.117-1717
Automake 1.99a
Gnulib v0.1-262-g46d015f
==================================================================
NEWS
* Noteworthy changes in release 2.21 (2014-11-23) [stable]
** Improvements
Performance has been greatly improved for searching files containing
holes, on platforms where lseek's SEEK_DATA flag works efficiently.
Performance has improved for rejecting data that cannot match even
the first part of a nontrivial pattern.
Performance has improved for very long strings in patterns.
If a file contains data improperly encoded for the current locale,
and this is discovered before any of the file's contents are output,
grep now treats the file as binary.
grep -P no longer reports an error and exits when given invalid UTF-8 data.
Instead, it considers the data to be non-matching.
** Bug fixes
grep no longer mishandles patterns that contain \w or \W in multibyte
locales.
grep would fail to count newlines internally when operating in non-UTF8
multibyte locales, leading it to print potentially many lines that did
not match. E.g., the command, "seq 10 | env LC_ALL=zh_CN src/grep -n .."
would print this:
1:1
2
3
4
5
6
7
8
9
10
implying that the match, "10" was on line 1.
[bug introduced in grep-2.19]
grep -F -x -o no longer prints an extra newline for each match.
[bug introduced in grep-2.19]
grep in a non-UTF8 multibyte locale could mistakenly match in the middle
of a multibyte character when using a '^'-anchored alternate in a pattern,
leading it to print non-matching lines. [bug present since "the beginning"]
grep -F Y no longer fails to match in non-UTF8 multibyte locales like
Shift-JIS, when the input contains a 2-byte character, XY, followed by
the single-byte search pattern, Y. grep would find the first, middle-
of-multibyte matching "Y", and then mistakenly advance an internal
pointer one byte too far, skipping over the target "Y" just after that.
[bug introduced in grep-2.19]
grep -E rejected unmatched ')', instead of treating it like '\)'.
[bug present since "the beginning"]
On NetBSD, grep -r no longer reports "Inappropriate file type or format"
when refusing to follow a symbolic link.
[bug introduced in grep-2.12]
** Changes in behavior
The GREP_OPTIONS environment variable is now obsolescent, and grep
now warns if it is used. Please use an alias or script instead.
In locales with multibyte character encodings other than UTF-8,
grep -P now reports an error and exits instead of misbehaving.
When searching binary data, grep now may treat non-text bytes as
line terminators. This can boost performance significantly.
grep -z no longer automatically treats the byte '\200' as binary data.
also posted as:
https://savannah.gnu.org/forum/forum.php?forum_id=8152
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