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From b7928899936522b3d03aef1cca566030510f6a01 Mon Sep 17 00:00:00 2001
From: Robert Ogden <robertogden@chromium.org>
Date: Wed, 26 Jul 2023 11:24:47 -0700
Subject: [PATCH] use re2 instead of std regex
---
.../src/mediapipe/framework/deps/re2.h | 42 ++-----------------
1 file changed, 3 insertions(+), 39 deletions(-)
diff --git a/third_party/mediapipe/src/mediapipe/framework/deps/re2.h b/third_party/mediapipe/src/mediapipe/framework/deps/re2.h
index 61f7985ee62fe..4079d9c0d1916 100644
--- a/third_party/mediapipe/src/mediapipe/framework/deps/re2.h
+++ b/third_party/mediapipe/src/mediapipe/framework/deps/re2.h
@@ -15,45 +15,9 @@
#ifndef MEDIAPIPE_FRAMEWORK_DEPS_RE2_H_
#define MEDIAPIPE_FRAMEWORK_DEPS_RE2_H_
-#include <regex> // NOLINT
+#include "re2/re2.h"
-namespace mediapipe {
-
-// Implements a subset of RE2 using std::regex_match.
-class RE2 {
- public:
- RE2(const std::string& pattern) : std_regex_(pattern) {}
- static bool FullMatch(std::string text, const RE2& re) {
- return std::regex_match(text, re.std_regex_);
- }
- static bool PartialMatch(std::string text, const RE2& re) {
- return std::regex_search(text, re.std_regex_);
- }
- static int GlobalReplace(std::string* text, const RE2& re,
- const std::string& rewrite) {
- std::smatch sm;
- std::regex_search(*text, sm, re.std_regex_);
- *text = std::regex_replace(*text, re.std_regex_, rewrite);
- return std::max(0, static_cast<int>(sm.size()) - 1);
- }
-
- private:
- std::regex std_regex_;
-};
-
-// Implements LazyRE2 using std::call_once.
-class LazyRE2 {
- public:
- RE2& operator*() const {
- std::call_once(once_, [&]() { ptr_ = new RE2(pattern_); });
- return *ptr_;
- }
- RE2* operator->() const { return &**this; }
- const char* pattern_;
- mutable RE2* ptr_;
- mutable std::once_flag once_;
-};
-
-} // namespace mediapipe
+using re2::LazyRE2;
+using re2::RE2;
#endif // MEDIAPIPE_FRAMEWORK_DEPS_RE2_H_
--
2.41.0.487.g6d72f3e995-goog
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