1 /*
2  * Copyright (c) 2023 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef UTF8_UTILS_H
17 #define UTF8_UTILS_H
18 
19 #include <cstddef>
20 #include <cstdint>
21 #include <vector>
22 
23 namespace OHOS::Request::Utf8Utils {
24 size_t Utf8CharWidth(uint8_t b);
25 bool GetNextByte(const std::vector<uint8_t> &v, size_t &index, uint8_t &next);
26 bool Check2Bytes(const std::vector<uint8_t> &v, size_t &index);
27 bool Check3Bytes(const std::vector<uint8_t> &v, const size_t &first, size_t &index);
28 bool Check4Bytes(const std::vector<uint8_t> &v, const size_t &first, size_t &index);
29 bool RunUtf8Validation(const std::vector<uint8_t> &v);
30 } // namespace OHOS::Request::Utf8Utils
31 #endif // UTF8_UTILS_H
32