RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.
This is the source code repository for RE2, a regular expression library.
For documentation about how to install and use RE2,
visit https://github.com/google/re2/.
The short version is:
make
make test
make install
make testinstall
There is a fair amount of documentation (including code snippets) in
the re2.h header file.
More information can be found on the wiki:
https://github.com/google/re2/wiki
Issue tracker:
https://github.com/google/re2/issues
Mailing list:
https://groups.google.com/group/re2-dev
Unless otherwise noted, the RE2 source files are distributed
under the BSD-style license found in the LICENSE file.
RE2's native language is C++.
The Python wrapper is at https://github.com/google/re2/tree/abseil/python
and on PyPI (https://pypi.org/project/google-re2/).
A C wrapper is at https://github.com/marcomaggi/cre2/.
A D wrapper is at https://github.com/ShigekiKarita/re2d/ and on DUB (code.dlang.org).
An Erlang wrapper is at https://github.com/dukesoferl/re2/ and on Hex (hex.pm).
An Inferno wrapper is at https://github.com/powerman/inferno-re2/.
A Node.js wrapper is at https://github.com/uhop/node-re2/ and on NPM (npmjs.com).
An OCaml wrapper is at https://github.com/janestreet/re2/ and on OPAM (opam.ocaml.org).
A Perl wrapper is at https://github.com/dgl/re-engine-RE2/ and on CPAN (cpan.org).
An R wrapper is at https://github.com/girishji/re2/ and on CRAN (cran.r-project.org).
A Ruby wrapper is at https://github.com/mudge/re2/ and on RubyGems (rubygems.org).
A WebAssembly wrapper is at https://github.com/google/re2-wasm/ and on NPM (npmjs.com).
Reviews
Builds
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_18_libc++ |
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2025-09-10 09:46:51 UTC (34:05 minutes ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_18_libc++-static_O3 |
timestamp |
2025-09-10 06:24:18 UTC (03:56:38 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_18_libc++-O3 |
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2025-09-10 06:20:59 UTC (03:59:56 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_18-static_O3 |
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2025-09-10 06:17:13 UTC (04:03:43 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_18-O3 |
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2025-09-10 06:15:34 UTC (04:05:21 hours ago) |
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x86_64-linux-gnu |
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linux_fedora_40-gcc_14-bindist |
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2025-09-10 05:46:42 UTC (04:34:14 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_17 |
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2025-09-10 05:26:06 UTC (04:54:50 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_17_libc++ |
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2025-09-10 02:15:24 UTC (08:05:32 hours ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-gcc_13 |
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2025-09-10 00:08:38 UTC (10:12:18 hours ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-gcc_14 |
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2025-09-09 06:39:57 UTC (01 03:40:58 days ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-gcc_14-O3 |
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2025-09-09 05:57:52 UTC (01 04:23:04 days ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-gcc_13.1 |
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2025-09-09 03:32:40 UTC (01 06:48:16 days ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-clang_17 |
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2025-09-09 03:09:06 UTC (01 07:11:50 days ago) |
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public-0.17.0 |
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x86_64-freebsd13.3 |
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freebsd_13-clang_17 |
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2025-09-09 02:11:09 UTC (01 08:09:47 days ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-clang_17_libc++ |
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2025-09-09 02:04:42 UTC (01 08:16:14 days ago) |
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public-0.17.0 |
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x86_64-freebsd14.1 |
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freebsd_14-clang_18 |
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2025-09-09 02:02:37 UTC (01 08:18:19 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-clang_17_msvc_msvc_17.10 |
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2025-09-09 01:49:10 UTC (01 08:31:46 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-clang_18_llvm_msvc_17.10 |
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2025-09-09 01:45:43 UTC (01 08:35:13 days ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-gcc_14 |
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2025-09-09 01:22:43 UTC (01 08:58:13 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-clang_18_llvm_msvc_17.10-static_O2 |
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2025-09-09 00:28:13 UTC (01 09:52:43 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-clang_18_llvm_msvc_17.10-O2 |
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2025-09-09 00:25:08 UTC (01 09:55:48 days ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_ubuntu_24.04-gcc_13-bindist |
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2025-09-08 23:47:43 UTC (01 10:33:13 days ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-gcc_12-bindist |
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2025-09-08 23:43:21 UTC (01 10:37:34 days ago) |
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public-0.17.0 |
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x86_64-freebsd14.1 |
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freebsd_14-clang_18-static_O3 |
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2025-09-08 23:20:42 UTC (01 11:00:13 days ago) |
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x86_64-freebsd14.1 |
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freebsd_14-clang_18-O3 |
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2025-09-08 23:17:37 UTC (01 11:03:19 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-msvc_17.10 |
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2025-09-08 14:46:23 UTC (01 19:34:33 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-msvc_17.8 |
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2025-09-08 14:45:31 UTC (01 19:35:25 days ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-gcc_14-ndebug_O3 |
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2025-09-08 14:43:49 UTC (01 19:37:07 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-msvc_17.10-O2 |
timestamp |
2025-09-08 13:57:47 UTC (01 20:23:09 days ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-gcc_14-ndebug_O3 |
timestamp |
2025-09-08 03:08:19 UTC (02 07:12:37 days ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-gcc_14-static_O3 |
timestamp |
2025-09-08 00:17:41 UTC (02 10:03:15 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-msvc_17.8-O2 |
timestamp |
2025-09-07 23:35:00 UTC (02 10:45:56 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-msvc_17.10-static_O2 |
timestamp |
2025-09-07 23:34:01 UTC (02 10:46:55 days ago) |
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public-0.17.0 |
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x86_64-microsoft-win32-msvc14.3 |
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windows_10-msvc_17.8-static_O2 |
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2025-09-07 23:30:12 UTC (02 10:50:44 days ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-gcc_14-static_O3 |
timestamp |
2025-09-07 23:06:10 UTC (02 11:14:45 days ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-gcc_14-O3 |
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2025-09-07 23:04:29 UTC (02 11:16:27 days ago) |
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public-0.17.0 |
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aarch64-linux-gnu |
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linux_debian_12-clang_18 |
timestamp |
2025-09-07 14:50:42 UTC (02 19:30:14 days ago) |
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public-0.17.0 |
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x86_64-w64-mingw32 |
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windows_10-gcc_13.2_mingw_w64 |
timestamp |
2025-09-07 11:31:28 UTC (02 22:49:28 days ago) |
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public-0.17.0 |
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x86_64-w64-mingw32 |
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windows_10-gcc_13.2_mingw_w64-O2 |
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2025-09-07 11:30:43 UTC (02 22:50:13 days ago) |
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public-0.17.0 |
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x86_64-w64-mingw32 |
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windows_10-gcc_13.2_mingw_w64-static_O2 |
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2025-09-07 11:29:52 UTC (02 22:51:04 days ago) |
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public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-clang_18 |
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public-0.17.0 |
target |
x86_64-linux-gnu |
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linux_debian_12-clang_18-O3 |
result |
unbuilt |
toolchain |
public-0.17.0 |
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x86_64-linux-gnu |
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linux_debian_12-clang_18-static_O3 |
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unbuilt |
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public-0.17.0 |
target |
x86_64-linux-gnu |
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linux_debian_12-clang_18_libc++ |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
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linux_debian_12-clang_18_libc++-O3 |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-linux-gnu |
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linux_debian_12-clang_18_libc++-static_O3 |
result |
unbuilt |
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public-0.17.0 |
target |
x86_64-linux-gnu |
tgt config |
linux_fedora_39-gcc_13-bindist |
result |
unbuilt |
toolchain |
public-0.17.0 |
target |
x86_64-apple-darwin22.5.0 |
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macos_13-clang_15.0 |
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unbuilt |
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public-0.17.0 |
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x86_64-apple-darwin23.5.0 |
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macos_14-clang_15.0 |
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unbuilt |
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public-0.17.0 |
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x86_64-apple-darwin23.5.0 |
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macos_14-clang_15.0-O3 |
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unbuilt |
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public-0.17.0 |
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x86_64-apple-darwin23.5.0 |
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macos_14-clang_15.0-static_O3 |
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unbuilt |
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public-0.17.0 |
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x86_64-apple-darwin23.5.0 |
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macos_14-gcc_14_homebrew |
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unbuilt |
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public-0.17.0 |
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x86_64-apple-darwin23.5.0 |
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macos_14-gcc_14_homebrew-O3 |
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unbuilt |
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public-0.17.0 |
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x86_64-apple-darwin23.5.0 |
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macos_14-gcc_14_homebrew-static_O3 |
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unbuilt |