Thought I'd send this to the list too. This is first of my WIP post-PCRE v2 inclusion series's. In addition to the huge speed improvements for grep -P noted in the culmination of that series[1], this speeds up all other types of grep invocations (fixed string & POSIX basic/extended) by using an experimental PCRE API to translate those patterns to PCRE syntax. Fixed string grep is sped up by ~15-50%, and any greps containing regexes by 40-70%, with 50% seeming to be the average for most normal patterns. It isn't ready for the reasons noted in the last patch in the series, and currently brings most of PCRE into git in compat/pcre2 since it uses an experimental API. The 5/6 patch is pretty much ready though and works on stock PCRE, it fixes TODO tests for patterns that contain a \0, and enables regex metacharacters in such patterns (right now they're all implicitly fixed strings), see the discussion in that patch for some of the caveats. That patch will most likely be dropped by the list, it can be retrieved from https://github.com/avar/git avar/grep-and-pcre-and-more, or the whole series viewed at https://github.com/git/git/compare/master...avar:avar/grep-and-pcre-and-more. 1. <20170511170142.15934-8-avarab@xxxxxxxxx> (https://public-inbox.org/git/20170511170142.15934-8-avarab@xxxxxxxxx/) Ævar Arnfjörð Bjarmason (6): Makefile & compat/pcre2: add ability to build an embedded PCRE Makefile & compat/pcre2: add dependency on pcre2_convert.c compat/pcre2: import pcre2 from svn trunk test-lib: add LIBPCRE1 & LIBPCRE2 prerequisites grep: support regex patterns containing \0 via PCRE v2 grep: use PCRE v2 under the hood for -G & -E for amazing speedup Makefile | 53 + compat/pcre2/get-pcre2.sh | 68 + compat/pcre2/src/pcre2.h | 832 ++ compat/pcre2/src/pcre2_auto_possess.c | 1291 ++ compat/pcre2/src/pcre2_chartables.c | 1 + compat/pcre2/src/pcre2_chartables.c.dist | 198 + compat/pcre2/src/pcre2_compile.c | 9626 +++++++++++++++ compat/pcre2/src/pcre2_config.c | 222 + compat/pcre2/src/pcre2_context.c | 450 + compat/pcre2/src/pcre2_convert.c | 724 ++ compat/pcre2/src/pcre2_error.c | 327 + compat/pcre2/src/pcre2_find_bracket.c | 218 + compat/pcre2/src/pcre2_internal.h | 1967 +++ compat/pcre2/src/pcre2_intmodedep.h | 884 ++ compat/pcre2/src/pcre2_jit_compile.c | 12307 +++++++++++++++++++ compat/pcre2/src/pcre2_jit_match.c | 189 + compat/pcre2/src/pcre2_jit_misc.c | 227 + compat/pcre2/src/pcre2_maketables.c | 157 + compat/pcre2/src/pcre2_match.c | 6826 ++++++++++ compat/pcre2/src/pcre2_match_data.c | 147 + compat/pcre2/src/pcre2_newline.c | 243 + compat/pcre2/src/pcre2_ord2utf.c | 120 + compat/pcre2/src/pcre2_string_utils.c | 201 + compat/pcre2/src/pcre2_study.c | 1624 +++ compat/pcre2/src/pcre2_tables.c | 765 ++ compat/pcre2/src/pcre2_ucd.c | 3761 ++++++ compat/pcre2/src/pcre2_ucp.h | 268 + compat/pcre2/src/pcre2_valid_utf.c | 398 + compat/pcre2/src/pcre2_xclass.c | 271 + compat/pcre2/src/sljit/sljitConfig.h | 145 + compat/pcre2/src/sljit/sljitConfigInternal.h | 725 ++ compat/pcre2/src/sljit/sljitExecAllocator.c | 312 + compat/pcre2/src/sljit/sljitLir.c | 2224 ++++ compat/pcre2/src/sljit/sljitLir.h | 1392 +++ compat/pcre2/src/sljit/sljitNativeARM_32.c | 2326 ++++ compat/pcre2/src/sljit/sljitNativeARM_64.c | 2104 ++++ compat/pcre2/src/sljit/sljitNativeARM_T2_32.c | 1987 +++ compat/pcre2/src/sljit/sljitNativeMIPS_32.c | 437 + compat/pcre2/src/sljit/sljitNativeMIPS_64.c | 539 + compat/pcre2/src/sljit/sljitNativeMIPS_common.c | 2110 ++++ compat/pcre2/src/sljit/sljitNativePPC_32.c | 276 + compat/pcre2/src/sljit/sljitNativePPC_64.c | 447 + compat/pcre2/src/sljit/sljitNativePPC_common.c | 2421 ++++ compat/pcre2/src/sljit/sljitNativeSPARC_32.c | 165 + compat/pcre2/src/sljit/sljitNativeSPARC_common.c | 1471 +++ compat/pcre2/src/sljit/sljitNativeTILEGX-encoder.c | 10159 +++++++++++++++ compat/pcre2/src/sljit/sljitNativeTILEGX_64.c | 2555 ++++ compat/pcre2/src/sljit/sljitNativeX86_32.c | 602 + compat/pcre2/src/sljit/sljitNativeX86_64.c | 742 ++ compat/pcre2/src/sljit/sljitNativeX86_common.c | 2921 +++++ compat/pcre2/src/sljit/sljitProtExecAllocator.c | 421 + compat/pcre2/src/sljit/sljitUtils.c | 334 + grep.c | 73 +- grep.h | 5 + t/README | 18 + t/t7008-grep-binary.sh | 87 +- t/test-lib.sh | 3 + 57 files changed, 81335 insertions(+), 31 deletions(-) create mode 100755 compat/pcre2/get-pcre2.sh create mode 100644 compat/pcre2/src/pcre2.h create mode 100644 compat/pcre2/src/pcre2_auto_possess.c create mode 120000 compat/pcre2/src/pcre2_chartables.c create mode 100644 compat/pcre2/src/pcre2_chartables.c.dist create mode 100644 compat/pcre2/src/pcre2_compile.c create mode 100644 compat/pcre2/src/pcre2_config.c create mode 100644 compat/pcre2/src/pcre2_context.c create mode 100644 compat/pcre2/src/pcre2_convert.c create mode 100644 compat/pcre2/src/pcre2_error.c create mode 100644 compat/pcre2/src/pcre2_find_bracket.c create mode 100644 compat/pcre2/src/pcre2_internal.h create mode 100644 compat/pcre2/src/pcre2_intmodedep.h create mode 100644 compat/pcre2/src/pcre2_jit_compile.c create mode 100644 compat/pcre2/src/pcre2_jit_match.c create mode 100644 compat/pcre2/src/pcre2_jit_misc.c create mode 100644 compat/pcre2/src/pcre2_maketables.c create mode 100644 compat/pcre2/src/pcre2_match.c create mode 100644 compat/pcre2/src/pcre2_match_data.c create mode 100644 compat/pcre2/src/pcre2_newline.c create mode 100644 compat/pcre2/src/pcre2_ord2utf.c create mode 100644 compat/pcre2/src/pcre2_string_utils.c create mode 100644 compat/pcre2/src/pcre2_study.c create mode 100644 compat/pcre2/src/pcre2_tables.c create mode 100644 compat/pcre2/src/pcre2_ucd.c create mode 100644 compat/pcre2/src/pcre2_ucp.h create mode 100644 compat/pcre2/src/pcre2_valid_utf.c create mode 100644 compat/pcre2/src/pcre2_xclass.c create mode 100644 compat/pcre2/src/sljit/sljitConfig.h create mode 100644 compat/pcre2/src/sljit/sljitConfigInternal.h create mode 100644 compat/pcre2/src/sljit/sljitExecAllocator.c create mode 100644 compat/pcre2/src/sljit/sljitLir.c create mode 100644 compat/pcre2/src/sljit/sljitLir.h create mode 100644 compat/pcre2/src/sljit/sljitNativeARM_32.c create mode 100644 compat/pcre2/src/sljit/sljitNativeARM_64.c create mode 100644 compat/pcre2/src/sljit/sljitNativeARM_T2_32.c create mode 100644 compat/pcre2/src/sljit/sljitNativeMIPS_32.c create mode 100644 compat/pcre2/src/sljit/sljitNativeMIPS_64.c create mode 100644 compat/pcre2/src/sljit/sljitNativeMIPS_common.c create mode 100644 compat/pcre2/src/sljit/sljitNativePPC_32.c create mode 100644 compat/pcre2/src/sljit/sljitNativePPC_64.c create mode 100644 compat/pcre2/src/sljit/sljitNativePPC_common.c create mode 100644 compat/pcre2/src/sljit/sljitNativeSPARC_32.c create mode 100644 compat/pcre2/src/sljit/sljitNativeSPARC_common.c create mode 100644 compat/pcre2/src/sljit/sljitNativeTILEGX-encoder.c create mode 100644 compat/pcre2/src/sljit/sljitNativeTILEGX_64.c create mode 100644 compat/pcre2/src/sljit/sljitNativeX86_32.c create mode 100644 compat/pcre2/src/sljit/sljitNativeX86_64.c create mode 100644 compat/pcre2/src/sljit/sljitNativeX86_common.c create mode 100644 compat/pcre2/src/sljit/sljitProtExecAllocator.c create mode 100644 compat/pcre2/src/sljit/sljitUtils.c -- 2.11.0