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| author |  Michał Kiedrowicz <michal.kiedrowicz@gmail.com> | 2011-05-09 23:52:05 +0200 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2011-05-09 16:29:33 -0700 |
| commit | 63e7e9d8b6483fed555ebed1c79a4820b2ba2558 (patch) | |
| tree | 6970e3b85e6870c8fc75eb5704e44c92b1872438 /builtin/grep.c | |
| parent | grep: Extract compile_regexp_failed() from compile_regexp() (diff) | |
| download | tgif-63e7e9d8b6483fed555ebed1c79a4820b2ba2558.tar.xz | |
git-grep: Learn PCRE
This patch teaches git-grep the --perl-regexp/-P options (naming
borrowed from GNU grep) in order to allow specifying PCRE regexes on the
command line.
PCRE has a number of features which make them more handy to use than
POSIX regexes, like consistent escaping rules, extended character
classes, ungreedy matching etc.
git isn't build with PCRE support automatically. USE_LIBPCRE environment
variable must be enabled (like `make USE_LIBPCRE=YesPlease`).
Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/grep.c')
| -rw-r--r-- | builtin/grep.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/builtin/grep.c b/builtin/grep.c index 10a1f65310..6831975104 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -781,6 +781,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix) REG_EXTENDED), OPT_BOOLEAN('F', "fixed-strings", &opt.fixed, "interpret patterns as fixed strings"), + OPT_BOOLEAN('P', "perl-regexp", &opt.pcre, + "use Perl-compatible regular expressions"), OPT_GROUP(""), OPT_BOOLEAN('n', "line-number", &opt.linenum, "show line numbers"), OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1), |