1 /*
2 * Copyright (c) 2021 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 STRING_UTILS_H
17 #define STRING_UTILS_H
18
19 #include <iostream>
20 #include <sstream>
21
22 #include <hilog/log.h>
23
24 #include "securec.h"
25
26
27 namespace OHOS {
28 namespace Rosen {
29 static constexpr HiviewDFX::HiLogLabel TAG = { LOG_CORE, 0, "StringUtils" };
30 constexpr int STRING_BUFFER_SIZE = 4096;
31 template <typename...Args>
AppendFormat(std::string& out, const char* fmt, Args&& ... args)32 void AppendFormat(std::string& out, const char* fmt, Args&& ... args)
33 {
34 char buf[STRING_BUFFER_SIZE] = {0};
35 int len = ::snprintf_s(buf, sizeof(buf), sizeof(buf)-1, fmt, args...);
36 if (len <= 0) {
37 HiviewDFX::HiLog::Error(TAG, "failed to execute snprintf.");
38 return;
39 }
40 out += buf;
41 }
42
43 template <class Container>
SplitString(const std::string& src, Container& dest, const char separator)44 void SplitString(const std::string& src, Container& dest, const char separator)
45 {
46 if (src.empty()) {
47 return;
48 }
49 std::string tmp;
50 std::stringstream ss(src);
51 while (std::getline(ss, tmp, separator)) {
52 dest.insert(tmp);
53 }
54 return;
55 }
56 }
57 }
58 #endif