| // Copyright 2021 Google Inc. All Rights Reserved. |
| // |
| // 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. |
| |
| #include "json.h" |
| |
| #include <cstdio> |
| #include <string> |
| |
| std::string EncodeJSONString(const std::string& in) { |
| static const char* hex_digits = "0123456789abcdef"; |
| std::string out; |
| out.reserve(in.length() * 1.2); |
| for (std::string::const_iterator it = in.begin(); it != in.end(); ++it) { |
| char c = *it; |
| if (c == '\b') |
| out += "\\b"; |
| else if (c == '\f') |
| out += "\\f"; |
| else if (c == '\n') |
| out += "\\n"; |
| else if (c == '\r') |
| out += "\\r"; |
| else if (c == '\t') |
| out += "\\t"; |
| else if (0x0 <= c && c < 0x20) { |
| out += "\\u00"; |
| out += hex_digits[c >> 4]; |
| out += hex_digits[c & 0xf]; |
| } else if (c == '\\') |
| out += "\\\\"; |
| else if (c == '\"') |
| out += "\\\""; |
| else |
| out += c; |
| } |
| return out; |
| } |
| |
| void PrintJSONString(const std::string& in) { |
| std::string out = EncodeJSONString(in); |
| fwrite(out.c_str(), 1, out.length(), stdout); |
| } |