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// 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);
}
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