Commits on Feb 13, 2007
  1. - Be explicit on command line checking, instead of relying on patterns,

    mkilian committed Feb 13, 2007
      which may be NULL (e.g. -e '').
    - let add_pattern() decide how to deal with empty patterns, don't do
      magic in read_patterns().
    This unbreaks stuff like grep -e '', and makes grep -f <file> more
    POSIX compliant. Semantics for grep -f /dev/null (or any other empty
    file) may be questionable, but this case isn't specified by POSIX,
    and matching nothing at all seems to be sane.
    Thanks to otto@, who mentioned potential problems related to the
    -x option with the first patch i sent.
    ok jaredy@ (some time ago), otto@, millert@
Commits on Dec 26, 2006
Commits on Nov 17, 2006
  1. Reset the number of lines of tail context left to print

    Jared Yanovich
    Jared Yanovich committed Nov 17, 2006
    before processing each file to avoid printing lines
    intended from the previous file.
    Reported and fix by Charles Longeau <>
    via tech@.
    ok otto millert
Commits on Nov 2, 2006
  1. Check length before checking index of len - 1.

    raylai committed Nov 2, 2006
    OK moritz@.
Commits on Sep 26, 2006
  1. Allow zero-length patterns with -x so

    Jared Yanovich
    Jared Yanovich committed Sep 26, 2006
      $ grep -x ""
    matches empty lines as reported on misc@ by
    Martin Marusak <>.
    Initial diff by otto@ with tweaks by me.
    ok otto
Commits on Sep 20, 2006
  1. That should be S_ISREG, dunno why I committed this wrong version;

    omoerbeek committed Sep 20, 2006
    spotted by hshoexer@
Commits on Sep 19, 2006
  1. Use S_IS* macros insted of masking with S_IF* flags. The latter may

    omoerbeek committed Sep 19, 2006
    have multiple bits set, which lead to surprising results. Spotted by
    Paul Stoeber, more to come. ok millert@ pedro@ jaredy@ djm@
Commits on Mar 7, 2006
  1. Break patterns containing newlines into multiple patterns like POSIX …

    omoerbeek committed Mar 7, 2006
    Report by Ralf dot Wildenhues at gmx dot de;
    testing by jmc@ ok beck@ millert@
  2. -nv is a valid combination; confirmed by otto

    Jason McIntyre
    Jason McIntyre committed Mar 7, 2006
Commits on Feb 9, 2006
Commits on Feb 7, 2006
  1. restore cosmic balance by plugging a mem leak; problem reported by

    omoerbeek committed Feb 7, 2006
    Benjamin Pineau in PR 5008; ok weingart@
Commits on Jun 5, 2005
  1. s/-p1003.1-2003/-p1003.1-2004/g

    Jason McIntyre
    Jason McIntyre committed Jun 5, 2005
Commits on Apr 25, 2005
  1. - use size_t where appropriate.

    omoerbeek committed Apr 25, 2005
    - check for <= 0 in gzread; it returns -1 on error.
    From christos@netbsd; ok millert@
Commits on Apr 3, 2005
  1. Make the processing of patterns collected from files specified by -f

    Jared Yanovich
    Jared Yanovich committed Apr 3, 2005
    delayed so options that affect pattern-building (such as -w) can be
    applied evenly to all such patterns.
    ok and help otto, ok millert
  2. Protect begin and end of word markers added to the pattern when

    omoerbeek committed Apr 3, 2005
    using the -w option with parentheses, to avoid operators in the
    expressions binding to the markers. Compare [[:<:]]foo|bar[[:>:]]
    and [[:<:]](foo|bar)[[:>:]]. Problem spotted by aaron@; ok millert@
    aaron@ jaredy@
Commits on Feb 7, 2005
  1. Due to a braindead zlib, the test for seekability of a gzstream using

    omoerbeek committed Feb 7, 2005
    gzseek(f, 0L, SEEK_CUR) does not work as expected. Instead test the
    underlying stream and remember that. This repairs echo foo | gzip | zgrep foo.
    Problem spotted by Han Boetes in PR 4089; ok millert@
Commits on Feb 2, 2005
Commits on Jan 6, 2005
  1. clarify what -a does;

    Jason McIntyre
    Jason McIntyre committed Jan 6, 2005
    prod and ok deraadt@
Commits on Oct 4, 2004
  1. remove the section on extended regular expressions, and point

    Jason McIntyre
    Jason McIntyre committed Oct 4, 2004
    people instead to re_format.7: there is now a list of EREs there;
Commits on Oct 3, 2004
  1. Remove block based mmap optimization. There are newline problems

    omoerbeek committed Oct 3, 2004
    (PR 3940, 3941) which can be fixed, but if a match starts at the
    end of a block and continues into the next block, no match will be
    found.  Measurements by millert@ showed that the improvements of
    this optimization are non-measurable anyway. Diff from Alexander Taler.
    ok millert@
Commits on Sep 28, 2004
  1. when stdin is searched, -L and -l print `(standard input)', not `-';

    Jason McIntyre
    Jason McIntyre committed Sep 28, 2004
    from alexander taler (pr #3937);
  2. various fixes to make this page a bit clearer and hopefully a bit

    Jason McIntyre
    Jason McIntyre committed Sep 28, 2004
    more helpful;
    this includes some ideas/fixes from otto and jared;
Commits on Sep 16, 2004
  1. unused variables; otto ok

    Theo de Raadt
    Theo de Raadt committed Sep 16, 2004
Commits on Sep 15, 2004
  1. cast offset value correctly for gzseek

    Theo de Raadt
    Theo de Raadt committed Sep 15, 2004
Commits on Aug 11, 2004
Commits on Aug 5, 2004
  1. spacing

    Theo de Raadt
    Theo de Raadt committed Aug 5, 2004
Commits on May 7, 2004
  1. Make grep -w behave the same for the fastcomp and the regex case,

    omoerbeek committed May 7, 2004
    by teaching fastcomp what word boundaries are according to regex.
    ok millert@
  2. Add a new past path for fgrep that is just a simplified version of

    Todd Miller
    Todd Miller committed May 7, 2004
    fastcomp.  This makes fgrep faster and fixes the -w flag w/ fgrep.
    Also remove free_patterns() since calling free right before exit
    is silly.  Problem noticed by espie@
Commits on May 6, 2004
  1. Don't fseek() on stdin if it is a terminal. It does not fail, but

    omoerbeek committed May 6, 2004
    what's more more important, it does not work either.
    ok millert@ tedu@
Commits on Apr 17, 2004
  1. -w uses [[:<:]] and [[:>:]], not \< and \>,

    Jason McIntyre
    Jason McIntyre committed Apr 17, 2004
    and it's documented in re_format(7), not ex(1);
    from jared yanovich;
    ok beck@
Commits on Apr 3, 2004
  1. remove unnecessary .Sm macros (oops, this is my fault it ever

    Jason McIntyre
    Jason McIntyre committed Apr 3, 2004
    made it into the tree);
Commits on Apr 2, 2004
  1. Document --line-buffered

    omoerbeek committed Apr 2, 2004
    ok jmc@
  2. Implement --line-buffered

    omoerbeek committed Apr 2, 2004
    ok millert@ tedu@
Commits on Mar 15, 2004