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//
// Copyright 2017 The Abseil Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef ABSL_STRINGS_STR_REPLACE_H_
#define ABSL_STRINGS_STR_REPLACE_H_
#include <string>
#include "third_party/absl/strings/string_view.h"
namespace absl {
inline void StringReplace(absl::string_view s, absl::string_view oldsub,
absl::string_view newsub, bool replace_all,
std::string *res) {
if (oldsub.empty()) {
res->append(s.data(), s.size());
return;
}
absl::string_view::size_type start_pos = 0;
do {
const absl::string_view::size_type pos = s.find(oldsub, start_pos);
if (pos == absl::string_view::npos) {
break;
}
res->append(s.data() + start_pos, pos - start_pos);
res->append(newsub.data(), newsub.size());
start_pos = pos + oldsub.size();
} while (replace_all);
res->append(s.data() + start_pos, s.size() - start_pos);
}
inline std::string StringReplace(absl::string_view s, absl::string_view oldsub,
absl::string_view newsub, bool replace_all) {
std::string ret;
StringReplace(s, oldsub, newsub, replace_all, &ret);
return ret;
}
inline std::string StrReplaceAll(
absl::string_view s,
const std::vector<std::pair<absl::string_view, absl::string_view>>
&patterns) {
std::string prev(s.data(), s.size());
std::string result;
for (const auto &it : patterns) {
result.clear();
StringReplace(prev, it.first, it.second, true, &result);
prev = result;
}
return result;
}
} // namespace absl
#endif // ABSL_STRINGS_STR_REPLACE_H_
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