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[PATCH v3 04/18] grep: remove redundant regflags assignment under PCRE

From
Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Date
Apr 20, 2017, 21:23 UTC
Message-ID
<20170420212345.7408-5-avarab@gmail.com>
In-Reply-To
<20170420212345.7408-1-avarab@gmail.com>

Remove a redundant assignment to the "regflags" variable. This variable is only used for POSIX regular expression matching, not when the PCRE library is used.

This redundant assignment was added as a result of copy/paste programming in commit 84befcd0a4 ("grep: add a grep.patternType configuration setting", 2012-08-03). That commit modified already working code in commit cca2c172e0 ("git-grep: do not die upon -F/-P when grep.extendedRegexp is set.", 2011-05-09) which didn't assign to regflags when under PCRE.

Revert back to that behavior, more to reduce "wait this is used under PCRE how?" confusion when reading the code, than to to save ourselves trivial CPU cycles by removing one assignment.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 grep.c | 1 -
 1 file changed, 1 deletion(-)
diff --git a/grep.c b/grep.c
index 47cee45067..59ae7809f2 100644
--- a/grep.c
+++ b/grep.c
@@ -197,7 +197,6 @@ static void grep_set_pattern_type_option(enum grep_pattern_type pattern_type, st
 	case GREP_PATTERN_TYPE_PCRE:
 		opt->fixed = 0;
 		opt->pcre = 1;
-		opt->regflags &= ~REG_EXTENDED;
 		break;
 	}
 }
-- 
2.11.0
Previous: Jeff KingNext: Ævar Arnfjörð Bjarmason
Message 8 of 22 in “PCRE v1 improvements & PCRE v2 support”
  1. 00/18 PCRE v1 improvements & PCRE v2 supportÆvar Arnfjörð Bjarmason, Apr 20, 2017
  2. 01/18 grep: amend submodule recursion test in preparation for rx engine testingÆvar Arnfjörð Bjarmason, Apr 20, 2017
  3. Brandon WilliamsApr 20, 2017
  4. 02/18 grep: add tests for grep pattern types being passed to submodulesÆvar Arnfjörð Bjarmason, Apr 20, 2017
  5. 03/18 grep: submodule-related case statements should die if new fields are addedÆvar Arnfjörð Bjarmason, Apr 20, 2017
  6. Brandon WilliamsApr 20, 2017
  7. Jeff KingApr 20, 2017
  8. 04/18 grep: remove redundant regflags assignment under PCREÆvar Arnfjörð Bjarmason, Apr 20, 2017
  9. 05/18 Makefile & configure: reword outdated comment about PCREÆvar Arnfjörð Bjarmason, Apr 20, 2017
  10. 06/18 grep: add a test for backreferences in PCRE patternsÆvar Arnfjörð Bjarmason, Apr 20, 2017
  11. 08/18 log: add -P as a synonym for --perl-regexpÆvar Arnfjörð Bjarmason, Apr 20, 2017
  12. 09/18 grep & rev-list doc: stop promising libpcre for --perl-regexpÆvar Arnfjörð Bjarmason, Apr 20, 2017
  13. 10/18 grep: make grep.patternType=[pcre|pcre1] a synonym for "perl"Ævar Arnfjörð Bjarmason, Apr 20, 2017
  14. 11/18 test-lib: rename the LIBPCRE prerequisite to PCREÆvar Arnfjörð Bjarmason, Apr 20, 2017
  15. 12/18 grep: change the internal PCRE macro names to be PCRE1Ævar Arnfjörð Bjarmason, Apr 20, 2017
  16. 13/18 grep: change the internal PCRE code & header names to be PCRE1Ævar Arnfjörð Bjarmason, Apr 20, 2017
  17. 07/18 log: add exhaustive tests for pattern style options & configÆvar Arnfjörð Bjarmason, Apr 20, 2017
  18. 14/18 perf: add a performance comparison test of grep -E and -PÆvar Arnfjörð Bjarmason, Apr 20, 2017
  19. 18/18 Makefile & configure: make PCRE v2 the default PCRE implementationÆvar Arnfjörð Bjarmason, Apr 20, 2017
  20. 16/18 grep: add support for PCRE v2Ævar Arnfjörð Bjarmason, Apr 20, 2017
  21. 17/18 grep: remove support concurrent use of both PCRE v1 & v2Ævar Arnfjörð Bjarmason, Apr 20, 2017
  22. 15/18 grep: add support for the PCRE v1 JIT APIÆvar Arnfjörð Bjarmason, Apr 20, 2017

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