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| author | Junio C Hamano <gitster@pobox.com> | 2023-02-14 14:15:49 -0800 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2023-02-14 14:15:49 -0800 |
| commit | a67610f4ab77d4a3e3d1173e40d1a1250b5d1933 (patch) | |
| tree | e1c974e2fb1a7ead31034342a1bcac1ce1efa76c | |
| parent | 11b53f8e52b9a7cbc9d7907ff719c535ff0d36f7 (diff) | |
| parent | 54463d32ef6798c772c8bbf69b2c1897a854db9f (diff) | |
| download | git-a67610f4ab77d4a3e3d1173e40d1a1250b5d1933.tar.gz | |
Merge branch 'rs/use-enhanced-bre-on-macos' into maint-2.39
Newer regex library macOS stopped enabling GNU-like enhanced BRE,
where '\(A\|B\)' works as alternation, unless explicitly asked with
the REG_ENHANCED flag. "git grep" now can be compiled to do so, to
retain the old behaviour.
* rs/use-enhanced-bre-on-macos:
use enhanced basic regular expressions on macOS
| -rw-r--r-- | Makefile | 9 | ||||
| -rw-r--r-- | compat/regcomp_enhanced.c | 9 | ||||
| -rw-r--r-- | config.mak.uname | 1 | ||||
| -rw-r--r-- | git-compat-util.h | 5 |
4 files changed, 24 insertions, 0 deletions
@@ -289,6 +289,10 @@ include shared.mak # Define NO_REGEX if your C library lacks regex support with REG_STARTEND # feature. # +# Define USE_ENHANCED_BASIC_REGULAR_EXPRESSIONS if your C library provides +# the flag REG_ENHANCED and you'd like to use it to enable enhanced basic +# regular expressions. +# # Define HAVE_DEV_TTY if your system can open /dev/tty to interact with the # user. # @@ -2040,6 +2044,11 @@ endif ifdef NO_REGEX COMPAT_CFLAGS += -Icompat/regex COMPAT_OBJS += compat/regex/regex.o +else +ifdef USE_ENHANCED_BASIC_REGULAR_EXPRESSIONS + COMPAT_CFLAGS += -DUSE_ENHANCED_BASIC_REGULAR_EXPRESSIONS + COMPAT_OBJS += compat/regcomp_enhanced.o +endif endif ifdef NATIVE_CRLF BASIC_CFLAGS += -DNATIVE_CRLF diff --git a/compat/regcomp_enhanced.c b/compat/regcomp_enhanced.c new file mode 100644 index 0000000000..84193ce53b --- /dev/null +++ b/compat/regcomp_enhanced.c @@ -0,0 +1,9 @@ +#include "../git-compat-util.h" +#undef regcomp + +int git_regcomp(regex_t *preg, const char *pattern, int cflags) +{ + if (!(cflags & REG_EXTENDED)) + cflags |= REG_ENHANCED; + return regcomp(preg, pattern, cflags); +} diff --git a/config.mak.uname b/config.mak.uname index d63629fe80..7d25995265 100644 --- a/config.mak.uname +++ b/config.mak.uname @@ -147,6 +147,7 @@ ifeq ($(uname_S),Darwin) FREAD_READS_DIRECTORIES = UnfortunatelyYes HAVE_NS_GET_EXECUTABLE_PATH = YesPlease CSPRNG_METHOD = arc4random + USE_ENHANCED_BASIC_REGULAR_EXPRESSIONS = YesPlease # Workaround for `gettext` being keg-only and not even being linked via # `brew link --force gettext`, should be obsolete as of diff --git a/git-compat-util.h b/git-compat-util.h index 7f84430d0e..de57f435e2 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -1346,6 +1346,11 @@ static inline int regexec_buf(const regex_t *preg, const char *buf, size_t size, return regexec(preg, buf, nmatch, pmatch, eflags | REG_STARTEND); } +#ifdef USE_ENHANCED_BASIC_REGULAR_EXPRESSIONS +int git_regcomp(regex_t *preg, const char *pattern, int cflags); +#define regcomp git_regcomp +#endif + #ifndef DIR_HAS_BSD_GROUP_SEMANTICS # define FORCE_DIR_SET_GID S_ISGID #else |