Building in MacOS

[Willian Massahiro Hayashida]

Dear Re2 team,

I have been trying to use the python wrap of the re2 library. I got, unfortunately, some errors while trying to install it.

I am using MacOS Monterey (v12.5 21G72) on intel processor

My compiler version is

Apple clang version 13.1.6 (clang-1316.0.21.2.5)
Target: x86_64-apple-darwin21.6.0

 

I cloned the repo https://github.com/google/re2/tree/abseil/python

and edited the file setup.py to add the flag "-std=c++11"

after running

>>> python setup.py install

I got the following error

_re2.cc:121:19: error: no viable conversion from 'absl::string_view' to 'const re2::StringPiece'
  if (!self.Match(text, pos, endpos, anchor, groups.data(), groups.size())) {
_re2.cc:144:25: error: no viable conversion from 'absl::string_view' to 'const re2::StringPiece'
  return RE2::QuoteMeta(pattern);
_re2.cc:161:26: error: no viable conversion from 'absl::string_view' to 'const re2::StringPiece'
    int index = set_.Add(pattern, /*error=*/NULL);  // -1 on error
_re2.cc:175:10: error: no matching member function for call to 'Match'
    set_.Match(text, &matches);
_re2.cc:196:17: error: no viable conversion from 'absl::string_view' to 'const re2::StringPiece'
    filter_.Add(pattern, options, &index);
_re2.cc:222:11: error: no matching member function for call to 'Match'
    set_->Match(text, &atoms);
_re2.cc:227:26: error: no viable conversion from 'absl::string_view' to 'const re2::StringPiece'
      filter_.AllMatches(text, atoms, &matches);
/usr/local/include/absl/memory/memory.h:170:33: error: no matching constructor for initialization of 're2::RE2'
  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));

Could you please give me any directions on how to manage it? 

Sorry if I am bothering you, should I send this question in the git repository instead?

Thanks in advance,

Willian

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[Paul Wankadia]

On Tue, Aug 9, 2022 at 2:41 AM 'Willian Massahiro Hayashida' via re2-dev <re2...@googlegroups.com> wrote:

I have been trying to use the python wrap of the re2 library. I got, unfortunately, some errors while trying to install it.

Is it possible for you to use https://pypi.org/project/google-re2/ instead? If the wheels aren't suitable, then building from source that way will at least work correctly. The code as currently written depends on Abseil and must be transformed in order to remove the dependency when building in other environments; the source tarball on PyPI contains the transformed code.