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Paul Wankadia edited this page Mar 17, 2024 · 33 revisions

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RE2 should build and run on any modern Unix clone with GCC or Clang.

git clone https://code.googlesource.com/re2
cd re2
make
make test
make install
make testinstall

(On BSD systems, use gmake instead of make.)

Building RE2 requires Abseil (https://github.com/abseil/abseil-cpp) to be installed on your system. Building the testing for RE2 requires GoogleTest (https://github.com/google/googletest) and Benchmark (https://github.com/google/benchmark) to be installed as well.

Bazel and CMake are also supported. The latter enables generation of Visual Studio and Xcode projects as well as Cygwin, MinGW and MSYS makefiles. Bug reports and/or fixes are welcome!

Your compiler must support C++14.
Visual Studio users: You need Visual Studio 2019 or later.
Cygwin users: You must run CMake from the Cygwin command line, not the Windows command line.

CMake has two ways to use a dependency: add_subdirectory(), which is when the dependency's sources are in a subdirectory of your project; and find_package(), which is when the dependency's binaries have been built and installed somewhere on your system. The Abseil documentation walks through the former here versus the latter here. Once you get Abseil working, getting RE2 working will be a very similar process and, either way, target_link_libraries(… re2::re2) should Just Work™.

For documentation on how to use RE2, see the comment at the top of re2/re2.h.

How to contribute code.

Mail re2-dev with problems.

RE2's native language is C++.

The Python wrapper is at https://github.com/google/re2/tree/main/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).

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