1/**
2 * Copyright (c) 2022 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#include "json_builder.h"
17
18#include "utils/string_helpers.h"
19
20#include <algorithm>
21
22using panda::helpers::string::Format;
23
24namespace panda {
25void JsonEscape(std::ostream &os, std::string_view string)
26{
27    os << '"';
28
29    while (!string.empty()) {
30        auto iter =
31            std::find_if(string.begin(), string.end(), [](char ch) { return ch == '"' || ch == '\\' || ch < ' '; });
32        auto pos = iter - string.begin();
33
34        os << string.substr(0, pos);
35
36        if (iter == string.end()) {
37            break;
38        }
39
40        os << '\\';
41
42        switch (*iter) {
43            case '"':
44            case '\\':
45                os << *iter;
46                break;
47            case '\b':
48                os << 'b';
49                break;
50            case '\f':
51                os << 'f';
52                break;
53            case '\n':
54                os << 'n';
55                break;
56            case '\r':
57                os << 'r';
58                break;
59            case '\t':
60                os << 't';
61                break;
62            default:
63                os << Format("u%04X", *iter);  // NOLINT(cppcoreguidelines-pro-type-vararg)
64        }
65
66        string.remove_prefix(pos + 1);
67    }
68
69    os << '"';
70}
71}  // namespace panda
72