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David Neto 2da0056814 Fix abseil deprecations (original by alona.moony@gmail.com) (#666) 
The original work is by Alona Enraght-Moony <alona.moony@gmail.com>
but I'm signing this so it can land.

It was PR https://github.com/google/re2/pull/644 and the author
signed the Google CLA (verified by the CLA-bot).

Author: Alona Enraght-Moony <alona.moony@gmail.com>
Date:   Mon Jun 29 23:08:33 2026 +0100

    Fix abseil lock deprecations

    Fixes https://github.com/google/re2/issues/631

    These were deprecated in
    https://github.com/abseil/abseil-cpp/commit/6d8e1a5cf00d6a6b26069b0baf0dd9b855a17459
 2026-10-02 14:28:04 -04:00
Russ Cox 972a15cedd re2: remove unnecessary & in MutexLock usage 
Update for Abseil churn from mid-2025, now that vcpkg has updated.
 2026-01-22 18:27:47 -05:00
Russ Cox 019bed1d06 re2: make CI checks also PR checks 
Also incorporate BUILD updates from #584
and a few more checks to make Bazel work again.
 2026-01-22 16:52:54 -05:00
Russ Cox e7aec59850 python: update minimum version in packaging metadata 
We stopped generating the 3.9 wheel but forgot to update the
setup.py minimum.

Also, generate wheels for macOS 26.
 2025-11-05 10:02:47 -05:00
Russ Cox 927f5d53ca 2025-11-05 2025-11-05 2025-11-05 09:38:27 -05:00
Russ Cox aee5886948 .github/workflows: delete pr.yml 
Allow pull requests. Going to try not using Gerrit.
 2025-11-05 09:36:42 -05:00
Russ Cox cedd1b51e1 CMakeLists: allow disabling 'make install' rules 
cmake -DRE2_INSTALL=OFF does not write out install targets in the Makefile.

Fixes #571.
 2025-11-05 09:28:01 -05:00
Russ Cox 11c643a48e .github/workflows: drop Python 3.9, add Python 3.14 
Python 3.14 was released on October 7.
Python 3.9 reached end-of-life on October 30.

https://devguide.python.org/versions/
 2025-11-05 09:21:24 -05:00
Russ Cox 6b6f716ebf re2: prepare to tag 2025-11-05 2025-11-05 09:04:21 -05:00
Russ Cox 880c551f60 re2: hoist a few loads out of BitState ShouldVisit 
Caching the fields from prog_ in the outer loop instead
of reloading them inside each call to ShouldVisit makes
the fast search path of BitState noticeably faster.

Thanks to @nafi3000 for the idea and the initial patch.

benchmark \ host                                     s7      mac
                                                vs base  vs base
Search_Success1_BitState/size=8                       ~        ~
Search_Success1_BitState/size=64                 -3.63%   -2.04%
Search_Success1_BitState/size=512               -15.83%   -6.83%
Search_Success1_BitState/size=4096              -25.59%  -10.74%
Search_Success1_BitState/size=32768             -27.85%  -11.85%
Search_Success1_BitState/size=262144            -28.03%  -11.94%
Search_Success1_BitState/size=2097152           -27.99%  -11.80%
Search_Success1_CachedBitState/size=8           -17.81%   -8.16%
Search_Success1_CachedBitState/size=64          -27.17%  -10.69%
Search_Success1_CachedBitState/size=512         -27.63%  -11.56%
Search_Success1_CachedBitState/size=4096        -27.88%  -11.61%
Search_Success1_CachedBitState/size=32768       -27.90%  -11.60%
Search_Success1_CachedBitState/size=262144      -27.73%  -11.55%
Search_Success1_CachedBitState/size=2097152     -27.88%  -11.54%
Search_AltMatch_BitState/size=8                  +0.83%        ~
Search_AltMatch_BitState/size=64                 +0.88%        ~
Search_AltMatch_BitState/size=512                +0.88%        ~
Search_AltMatch_BitState/size=4096               +1.02%        ~
Search_AltMatch_BitState/size=32768              +1.02%        ~
Search_AltMatch_BitState/size=262144             +1.22%        ~
Search_AltMatch_BitState/size=2097152            +1.10%        ~
Search_AltMatch_BitState/size=16777216                ~        ~
Search_AltMatch_CachedBitState/size=8            -1.79%        ~
Search_AltMatch_CachedBitState/size=64           -3.23%        ~
Search_AltMatch_CachedBitState/size=512          -3.39%        ~
Search_AltMatch_CachedBitState/size=4096              ~        ~
Search_AltMatch_CachedBitState/size=32768             ~        ~
Search_AltMatch_CachedBitState/size=262144            ~        ~
Search_AltMatch_CachedBitState/size=2097152           ~        ~
Search_AltMatch_CachedBitState/size=16777216          ~        ~

host: s7
                                             │     old     │                 new                 │
                                             │   sec/op    │   sec/op     vs base                │
Search_Success1_BitState/size=8                50.55µ ± 0%   50.58µ ± 0%        ~ (p=0.806 n=25)
Search_Success1_BitState/size=64               58.28µ ± 0%   56.16µ ± 0%   -3.63% (p=0.000 n=25)
Search_Success1_BitState/size=512              119.6µ ± 0%   100.7µ ± 0%  -15.83% (p=0.000 n=25)
Search_Success1_BitState/size=4096             612.7µ ± 0%   455.9µ ± 0%  -25.59% (p=0.000 n=25)
Search_Success1_BitState/size=32768            4.563m ± 0%   3.292m ± 0%  -27.85% (p=0.000 n=25)
Search_Success1_BitState/size=262144           36.09m ± 0%   25.98m ± 0%  -28.03% (p=0.000 n=25)
Search_Success1_BitState/size=2097152          288.6m ± 0%   207.8m ± 0%  -27.99% (p=0.000 n=25)
Search_Success1_CachedBitState/size=8          1.971µ ± 1%   1.620µ ± 0%  -17.81% (p=0.000 n=25)
Search_Success1_CachedBitState/size=64         9.829µ ± 1%   7.158µ ± 0%  -27.17% (p=0.000 n=25)
Search_Success1_CachedBitState/size=512        71.19µ ± 0%   51.52µ ± 0%  -27.63% (p=0.000 n=25)
Search_Success1_CachedBitState/size=4096       563.1µ ± 0%   406.1µ ± 0%  -27.88% (p=0.000 n=25)
Search_Success1_CachedBitState/size=32768      4.492m ± 0%   3.239m ± 0%  -27.90% (p=0.000 n=25)
Search_Success1_CachedBitState/size=262144     35.88m ± 0%   25.93m ± 0%  -27.73% (p=0.000 n=25)
Search_Success1_CachedBitState/size=2097152    287.3m ± 0%   207.2m ± 0%  -27.88% (p=0.000 n=25)
Search_AltMatch_BitState/size=8                16.54µ ± 0%   16.68µ ± 0%   +0.83% (p=0.000 n=25)
Search_AltMatch_BitState/size=64               16.53µ ± 0%   16.68µ ± 0%   +0.88% (p=0.000 n=25)
Search_AltMatch_BitState/size=512              16.53µ ± 0%   16.68µ ± 0%   +0.88% (p=0.000 n=25)
Search_AltMatch_BitState/size=4096             16.62µ ± 0%   16.79µ ± 0%   +1.02% (p=0.000 n=25)
Search_AltMatch_BitState/size=32768            16.63µ ± 0%   16.80µ ± 0%   +1.02% (p=0.000 n=25)
Search_AltMatch_BitState/size=262144           17.05µ ± 0%   17.26µ ± 0%   +1.22% (p=0.000 n=25)
Search_AltMatch_BitState/size=2097152          22.36µ ± 0%   22.61µ ± 0%   +1.10% (p=0.000 n=25)
Search_AltMatch_BitState/size=16777216         508.3µ ± 1%   510.5µ ± 0%        ~ (p=0.202 n=25)
Search_AltMatch_CachedBitState/size=8          616.0n ± 1%   605.0n ± 2%   -1.79% (p=0.000 n=25)
Search_AltMatch_CachedBitState/size=64         620.0n ± 1%   600.0n ± 1%   -3.23% (p=0.000 n=25)
Search_AltMatch_CachedBitState/size=512        620.0n ± 1%   599.0n ± 1%   -3.39% (p=0.000 n=25)
Search_AltMatch_CachedBitState/size=4096       629.0n ± 1%   629.0n ± 0%        ~ (p=0.747 n=25)
Search_AltMatch_CachedBitState/size=32768      690.0n ± 0%   688.0n ± 1%        ~ (p=0.874 n=25)
Search_AltMatch_CachedBitState/size=262144     1.212µ ± 0%   1.210µ ± 0%        ~ (p=0.415 n=25)
Search_AltMatch_CachedBitState/size=2097152    5.988µ ± 2%   5.931µ ± 4%        ~ (p=0.066 n=25)
Search_AltMatch_CachedBitState/size=16777216   510.8µ ± 0%   512.0µ ± 0%        ~ (p=0.164 n=25)
geomean                                        70.97µ        62.83µ       -11.47%

host: mac
                                             │     old      │                 new                  │
                                             │    sec/op    │    sec/op     vs base                │
Search_Success1_BitState/size=8                33.09µ ±  1%   33.02µ ±  1%        ~ (p=0.003 n=25)
Search_Success1_BitState/size=64               37.52µ ±  1%   36.75µ ±  0%   -2.04% (p=0.000 n=25)
Search_Success1_BitState/size=512              71.32µ ±  1%   66.45µ ±  0%   -6.83% (p=0.000 n=25)
Search_Success1_BitState/size=4096             341.2µ ±  0%   304.6µ ±  0%  -10.74% (p=0.000 n=25)
Search_Success1_BitState/size=32768            2.505m ±  0%   2.208m ±  0%  -11.85% (p=0.000 n=25)
Search_Success1_BitState/size=262144           19.79m ±  0%   17.43m ±  0%  -11.94% (p=0.000 n=25)
Search_Success1_BitState/size=2097152          158.1m ±  0%   139.5m ±  0%  -11.80% (p=0.000 n=25)
Search_Success1_CachedBitState/size=8          1.201µ ±  0%   1.103µ ±  0%   -8.16% (p=0.000 n=25)
Search_Success1_CachedBitState/size=64         5.442µ ±  0%   4.860µ ±  0%  -10.69% (p=0.000 n=25)
Search_Success1_CachedBitState/size=512        39.18µ ±  0%   34.65µ ±  0%  -11.56% (p=0.000 n=25)
Search_Success1_CachedBitState/size=4096       308.7µ ±  0%   272.9µ ±  0%  -11.61% (p=0.000 n=25)
Search_Success1_CachedBitState/size=32768      2.466m ±  0%   2.180m ±  0%  -11.60% (p=0.000 n=25)
Search_Success1_CachedBitState/size=262144     19.71m ±  0%   17.44m ±  0%  -11.55% (p=0.000 n=25)
Search_Success1_CachedBitState/size=2097152    157.8m ±  0%   139.6m ±  0%  -11.54% (p=0.000 n=25)
Search_AltMatch_BitState/size=8                11.48µ ±  0%   11.40µ ±  1%        ~ (p=0.573 n=25)
Search_AltMatch_BitState/size=64               11.51µ ±  0%   11.39µ ±  2%        ~ (p=0.200 n=25)
Search_AltMatch_BitState/size=512              11.41µ ±  1%   11.39µ ±  1%        ~ (p=0.866 n=25)
Search_AltMatch_BitState/size=4096             11.51µ ±  1%   11.39µ ±  2%        ~ (p=0.328 n=25)
Search_AltMatch_BitState/size=32768            11.60µ ±  0%   11.61µ ±  2%        ~ (p=0.711 n=25)
Search_AltMatch_BitState/size=262144           12.33µ ±  1%   12.20µ ±  1%        ~ (p=0.044 n=25)
Search_AltMatch_BitState/size=2097152          24.24µ ±  2%   25.27µ ±  7%        ~ (p=0.095 n=25)
Search_AltMatch_BitState/size=16777216         310.3µ ±  7%   280.1µ ±  2%        ~ (p=0.001 n=25)
Search_AltMatch_CachedBitState/size=8          375.0n ±  1%   375.0n ±  0%        ~ (p=0.260 n=25)
Search_AltMatch_CachedBitState/size=64         414.0n ±  6%   380.0n ± 14%        ~ (p=0.025 n=25)
Search_AltMatch_CachedBitState/size=512        377.0n ±  0%   378.0n ±  1%        ~ (p=0.775 n=25)
Search_AltMatch_CachedBitState/size=4096       414.0n ±  1%   412.0n ±  1%        ~ (p=0.008 n=25)
Search_AltMatch_CachedBitState/size=32768      524.0n ±  1%   526.0n ±  1%        ~ (p=0.248 n=25)
Search_AltMatch_CachedBitState/size=262144     2.825µ ±  4%   2.904µ ±  6%        ~ (p=0.342 n=25)
Search_AltMatch_CachedBitState/size=2097152    22.63µ ± 31%   22.63µ ±  9%        ~ (p=0.399 n=25)
Search_AltMatch_CachedBitState/size=16777216   304.0µ ±  6%   281.2µ ±  4%        ~ (p=0.052 n=25)
geomean                                        49.43µ         46.81µ         -5.31%
 2025-11-05 08:25:54 -05:00
Russ Cox dcd1f64798 BUILD: fix for Bazel 9.0.0rc1 
Error at https://buildkite.com/bazel/bcr-bazel-compatibility-test/builds/589/steps/canvas?jid=019a4bac-6015-4fed-a853-d187ee2e87fc

Change-Id: Ief0ef43cd23ca8e9fc5e63de8d0ea59460415f9f
 2025-11-04 21:43:13 -05:00
Russ Cox 61c4644171 re2: revert "churn to new Abseil" 
The new Abseil is not available in vcpkg, so it fails RE2 CI.
Roll back to the older version for now.

This reverts commit 7df5539248.
 2025-09-29 14:53:21 -04:00
Russ Cox cd7b2823a8 re2: merge 6569a9a3df 
This was accidentally the GitHub main branch head for a while,
and now Chromium refers to it. Merge it into the history so that
Chromium checkouts can advance past it.

It was committed to Gerrit as bf6416b instead.

Change-Id: I285f069f6f3a00bc836e35bbc9ea1b8f2ed3f921
 2025-09-29 13:43:25 -04:00
Russ Cox bc2752803f .github/workflows: update pypa/gh-action-pypi-publish 
There is a security fix in 1.13.0 and dependabot insists.

Change-Id: I346de5711188a6c2b03d1416b7bda4d614976c9c
Reviewed-on: https://code-review.googlesource.com/c/re2/+/64050
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-09-29 10:42:48 -07:00
Russ Cox 7df5539248 re2: churn to new Abseil 
Recent Abseil introduced a MutexLock constructor taking a
reference instead of a pointer and then immediately marked
the pointer one deprecated, causing deprecation errors/warnings
for users. Update to the new Abseil and change to references.

Change-Id: Id9436a79789b5700bbe883f4ee1de99b32e0d3e1
Reviewed-on: https://code-review.googlesource.com/c/re2/+/64030
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-09-29 08:58:19 -07:00
Russ Cox b1d8dff27b bazel: define and use small_tests 
Avoids having the same list of exclusions in three places.

Change-Id: I5912139e89800eeb4b72f3b6ed11996fe95b5ee0
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63991
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Jeremy Kun <jkun@google.com>
 2025-09-29 08:58:04 -07:00
Russ Cox 43bf853461 .bcr: fix windows command-line flags 
Change-Id: I9fe55a5db9c7080b818d8b4411982ad4e65d50f5
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63990
Reviewed-by: Jeremy Kun <jkun@google.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-09-29 08:57:47 -07:00
Russ Cox bf6416bc00 .github/workflows/release-bazel: disable attestation 
The bazel attestations are too complicated for mortals like me.
Also, the yanked_versions list is ignored in
metadata.template.json, so delete its content.

Change-Id: I28e05de4ca3391fd9c87189ff3be3aeedea95ac4
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63971
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Russ Cox <rsc@swtch.com>
 2025-09-29 08:57:07 -07:00
Russ Cox 6569a9a3df .github/workflows/release-bazel: disable attestation 
The bazel attestations are too complicated for mortals like me.

Change-Id: I28e05de4ca3391fd9c87189ff3be3aeedea95ac4
 2025-08-13 09:26:32 -04:00
Russ Cox 0f6c07eae6 .github/workflows/release-bazel: ask for secret 
In addition to passing the secret down from release.yml,
release-bazel.yml has to ask for the secret explicitly.

Change-Id: I5621e11a157ed242dd19da01d5731b15b6291664
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63970
Reviewed-by: Jeremy Kun <jkun@google.com>
Reviewed-by: Russ Cox <rsc@swtch.com>
2025-08-12 		2025-08-12 14:53:47 -07:00
Russ Cox 432ac21c60 .github/workflows/release: grant release-bazel permissions 
Trying to fix:

The workflow is not valid.
.github/workflows/release.yml (Line: 46, Col: 26): Invalid secret, BCR_PUBLISH_TOKEN is not defined in the referenced workflow.
.github/workflows/release.yml (Line: 40, Col: 3): Error calling workflow 'google/re2/.github/workflows/release-bazel.yml@932b308415a622428df2187522db1d273e507164'. The nested job 'release' is requesting 'attestations: write, contents: write, id-token: write', but is only allowed 'attestations: none, contents: read, id-token: none'.

I made the secret repo-wide instead of being scoped to the bcr-push environment.
Not 100% sure that will fix that error.

The changes in this CL should fix the second error.

Change-Id: I7d1a537dd3d464fe0d99e612ae843a14243d24af
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63950
Reviewed-by: Jeremy Kun <jkun@google.com>
Reviewed-by: Russ Cox <rsc@swtch.com>
 2025-08-12 14:44:36 -07:00
Russ Cox 932b308415 .github/workflows/release: fix typo in bazel file name 
Also change name from _ to - to match yaml conventions.

Change-Id: I4cd71d41656db954661b26c1d12443eb6bf8a453
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63930
Reviewed-by: Russ Cox <rsc@swtch.com>
Reviewed-by: Jeremy Kun <jkun@google.com>
 2025-08-12 12:50:05 -07:00
Russ Cox ed708ebe3a re2: prepare to tag 2025-08-12 
2025-08-12 will be the same as 2025-08-05
except for having some Bazel-related fixes
and possibly the right files to automatically
push an update to the Bazel Central Registry.

Change-Id: I178dd5ab31eeb29c97d9f687cbe7553d02dca8cb
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63910
Reviewed-by: Russ Cox <rsc@swtch.com>
Reviewed-by: Jeremy Kun <jkun@google.com>
 2025-08-12 12:24:28 -07:00
Russ Cox 88b9fcda87 .github/workflows: define release-bazel and call from release 
Thanks very much to Jeremy Kun for figuring this all out.

Change-Id: I3b6ec01ec6cd71b8f2a53bea71d17a58efe4f9b1
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63892
Reviewed-by: Yun Peng <pcloudy@google.com>
Reviewed-by: Russ Cox <rsc@swtch.com>
Reviewed-by: Jeremy Kun <jkun@google.com>
 2025-08-12 12:09:27 -07:00
Russ Cox 8fc5a0408e .bcr: add bazel-central-registry configuration 
Thanks to Jeremy Kun for figuring this all out.

Change-Id: I87a8d8fcf6086f38a2152985f85a9a9b6fbefded
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63891
Reviewed-by: Jeremy Kun <jkun@google.com>
Reviewed-by: Russ Cox <rsc@swtch.com>
Reviewed-by: Yun Peng <pcloudy@google.com>
 2025-08-12 12:04:57 -07:00
Russ Cox a4b2aeed3a MODULE.bazel: mark cc_configure_extension as dev_dependency 
Allows us to remove
https://github.com/bazelbuild/bazel-central-registry/tree/main/modules/re2/2025-06-26/patches

Change-Id: Id014d524154c5b686f1b331f648f7aa27eef205b
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63890
Reviewed-by: Yun Peng <pcloudy@google.com>
Reviewed-by: Russ Cox <rsc@swtch.com>
 2025-08-11 16:44:54 -07:00
Russ Cox 85c7c0fb11 re2: prepare to tag 2025-08-05 
Change-Id: If340b5f8ac94c7f95115e736a486fc254b4cad96
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63832
Reviewed-by: Alan Donovan <adonovan@google.com>
2025-08-05 		2025-08-05 12:15:32 -07:00
Russ Cox 384a920737 python: require Python 3.9+ 
The module has been building wheels for Python 3.9 and later,
but setup.py still declared a minimum of 3.8.
Update the metadata to require 3.9.

Fixes #559.

Change-Id: Id5d06a006f5080529b69bfe163bf629e36b15c34
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63850
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-08-05 10:48:02 -07:00
Russ Cox c2c6a2eb66 .github/workflows: only release on 2xxx-xx-xx tags 
I will add an 'abseil.old' tag preserving the Abseil branch history.
This avoids having that tag trigger a release action.

Change-Id: I3d44ff9d91bf205bd5425adcb4b1da044a531661
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63831
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-08-04 16:11:21 -07:00
Russ Cox 45150b3d15 python: fix re2.search(compiled, text) 
The old code was accidentally recompiling the pattern
and losing the options, both inefficient and incorrect.
Thanks to @MajorTanya for the excellent diagnosis.

This bug was introduced in CL 60290 and then copied
over from the Abseil branch.

Fixes #558.

Change-Id: I072707003b444fb0934a310e14147b4d65b9da11
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63830
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-08-04 16:11:00 -07:00
Russ Cox 362c5596a7 .github: trigger workflows on rsc-testing branch too 
This lets me push directly to GitHub in the rsc-testing branch
to run the CI and avoid Gerrit review round trips for dumb bugs.

Change-Id: I18ac9b3e67d74ad323cd89ec1f3197da38f96942
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63793
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 17:46:53 -07:00
Russ Cox f8b5053c29 .bazelrc: ask for C++17 now 
Also update README.md to explain to users (and future me).

Also update ci-bazel.yml to drop Python 3.8 and add 3.13.
(Missed this file when updating python.yml.)

Change-Id: Idbad8d392b88c5c38a59d5e0e2a1b5ff438990e6
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63792
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 17:46:47 -07:00
Russ Cox d14faa82b2 CMakeLists.txt: fix dependencies for shared library build 
There are a small number of references to the GoogleTest
package (for example TempDir) from re2/testing/*.cc, so
the testing library itself must depend on GoogleTest.
I removed this dependency incorrectly. Only the shared-library
build hits this problem.

Change-Id: Id48d106449f8023fd40330bfef179ab1dd1d4f45
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63791
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 17:46:23 -07:00
Russ Cox 8451125897 README.md: convert README to Markdown, expand 
The README is essentially unchanged since 2009. Update it:

* Convert to Markdown.
* Paste in a few wiki pages, which will change to redirect to the README.md:
  - https://github.com/google/re2/wiki/WhyRE2
  - https://github.com/google/re2/wiki/CplusplusAPI
  - https://github.com/google/re2/wiki/Install

Also document recipes for using CMake and Bazel,
neither of which was obvious to me.

Change-Id: I37603555d831bd4051b88b46542bfdd0f344776d
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63775
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 11:31:50 -07:00
Russ Cox c986ecddb8 re2: #include <cstring> in prog.h 
<cstring> provides memchr.

Change-Id: I7d6ef3d0f6c696d5a13353eb80b2a84f6e23fa7f
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63772
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 09:29:05 -07:00
Russ Cox 2a029e28d3 re2: use std::optional instead of absl::optional 
std::optional is now preferred over absl::optional, even at Google.
It was introduced in C++17.

Change-Id: If02413a46299beef521effaad265ca04f43088fa
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63771
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 09:29:01 -07:00
Russ Cox 137ea7ffcb re2: use C++17 [[fallthrough]] instead of ABSL_FALLTHROUGH_INTENDED 
According to [1], Google code now depends on C++17,
so we can use these directly.

[1] https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md

Change-Id: Ic475b79bc2153861d6ec2aebc0c55dbcf0c35908
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63770
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 09:28:58 -07:00
Russ Cox 141a0b75c8 MODULE.bazel: update dependency versions 
Change-Id: I39b9a9329bc553114473e7055c2ae4e9073006a7
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63773
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 09:28:43 -07:00
Russ Cox cf62c8d5d0 CMakeLists: updates for clang-cl, skipping benchmarks, and C++17 
1. Test MSVC instead of CMAKE_CXX_COMPILER_ID MATCHES "MSVC"
When using the 'clang-cl' simulation of MSVC's 'cl' compiler,
we want to execute these adjustments, and MSVC will be true,
but CMAKE_CXX_COMPILER_ID MATCHES "MSVC" will not.
Thanks to Alexander Neumann for flagging and for the explanation.
Fixes #532.

2. Separate out building tests from building benchmarks, because
they have different dependencies, and some people might want to
build tests and skip the benchmarks.

3. Update to C++17 and factor that out to make future updates easier.
We require C++17 now per
https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md

Change-Id: I5691847d5ff17636143981086f370e95e34900bd
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63774
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 09:28:38 -07:00
Russ Cox c7f516ddd9 Makefile: ask C++ compiler for C++17 
Change-Id: I5f4a686c66f9cb76306dd1f0e3d1005bf6c9d759
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63790
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-30 09:28:25 -07:00
Russ Cox 66a656e6d9 re2: add Python Windows-on-ARM support 
Based on CL 63710.

Fixes #537.

Change-Id: Idc53c7f8683f0f09e6c24e6aa5cafbd23ce76099
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63750
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-28 10:50:46 -07:00
Russ Cox b47783211c .github/workflows: update Python build versions 
Drop Python 3.8.
Add Python 3.13.

Drop macOS 12.
Add macOS 15.

Change-Id: I5916cf2de54dfb0274e50a8db3b8d93a60940710
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63730
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-28 08:25:33 -07:00
Russ Cox 6e8f5be3a3 python/setup: prepare for new version 
Change-Id: I13884a2e5ff659d624b0617eda73a817d3489658
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63690
Reviewed-by: Alan Donovan <adonovan@google.com>
2025-07-22 		2025-07-22 08:30:50 -07:00
Russ Cox ade723c0c3 MODULE.bazel: update for new tagged version 
Change-Id: I479cfbdfb62997b91abf417eb9a3c0c53b5a8e03
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63670
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-22 08:19:25 -07:00
Russ Cox 79741d66ed re2: allow and test RE2(NULL) 
RE2(NULL) has always worked. Make sure it keeps working.

Change-Id: I999c69d04e71fa31a2f40cd834c47b328039ed3d
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63631
Reviewed-by: Alan Donovan <adonovan@google.com>
2025-07-17 		2025-07-17 14:29:18 -07:00
Anuraag Agrawal 6e9f66fb12 .github/workflows: update all helper versions 
For #550

Change-Id: Icdd7eaab1e4f432214048239e23bb51f2491a476
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63610
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-07-17 14:15:22 -07:00
Russ Cox 8ea5841693 prepare release 2025-06-26 
Blindly following https://code-review.googlesource.com/c/re2/+/63450.

Change-Id: I5cb128581275f4a4617a59eac76b9416e0166943
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63590
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-06-26 10:57:25 -07:00
Russ Cox 006c729f2b .github/workflows: test newer clang 
The current images do not have Clang 16 anymore; use the current 3 latest.

Change-Id: Ie86c24aa139fd02325f02f3350ed921231758332
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63591
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-06-26 10:41:56 -07:00
Russ Cox 652b816bfd re2: add Set::Size 
Among other uses, exposing RE2::Set::Size allows writing a function that
takes a Set and a string and reports whether the string matches every
regexp in the Set. Without Size, that function can't know how many
matches to expect.

Change-Id: Ia161a87f20d031be11a9df54b981631800af1528
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63570
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-06-26 09:59:10 -07:00
Keith Smiley c84a140c93 Move cc_configure.bzl to rules_cc 
With bazel 8.x this has been removed, instead it is now loaded from
rules_cc.

Change-Id: Iffdcd196639d34daf5841db70446ba8474f73f29
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63470
Reviewed-by: Russ Cox <rsc@swtch.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
 2025-02-28 07:41:07 -08:00