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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef GOOGLE_PROTOBUF_UTIL_INTERNAL__JSON_ESCAPING_H__
#define GOOGLE_PROTOBUF_UTIL_INTERNAL__JSON_ESCAPING_H__
#include <cstdint>
#include <google/protobuf/stubs/common.h>
#include <google/protobuf/stubs/bytestream.h>
namespace google {
namespace protobuf {
namespace util {
namespace converter {
class JsonEscaping {
public:
// The minimum value of a unicode high-surrogate code unit in the utf-16
// encoding. A high-surrogate is also known as a leading-surrogate.
// See http://www.unicode.org/glossary/#high_surrogate_code_unit
static constexpr uint16_t kMinHighSurrogate = 0xd800;
// The maximum value of a unicide high-surrogate code unit in the utf-16
// encoding. A high-surrogate is also known as a leading-surrogate.
// See http://www.unicode.org/glossary/#high_surrogate_code_unit
static constexpr uint16_t kMaxHighSurrogate = 0xdbff;
// The minimum value of a unicode low-surrogate code unit in the utf-16
// encoding. A low-surrogate is also known as a trailing-surrogate.
// See http://www.unicode.org/glossary/#low_surrogate_code_unit
static constexpr uint16_t kMinLowSurrogate = 0xdc00;
// The maximum value of a unicode low-surrogate code unit in the utf-16
// encoding. A low-surrogate is also known as a trailing surrogate.
// See http://www.unicode.org/glossary/#low_surrogate_code_unit
static constexpr uint16_t kMaxLowSurrogate = 0xdfff;
// The minimum value of a unicode supplementary code point.
// See http://www.unicode.org/glossary/#supplementary_code_point
static constexpr uint32_t kMinSupplementaryCodePoint = 0x010000;
// The minimum value of a unicode code point.
// See http://www.unicode.org/glossary/#code_point
static constexpr uint32_t kMinCodePoint = 0x000000;
// The maximum value of a unicode code point.
// See http://www.unicode.org/glossary/#code_point
static constexpr uint32_t kMaxCodePoint = 0x10ffff;
JsonEscaping() {}
virtual ~JsonEscaping() {}
// Escape the given ByteSource to the given ByteSink.
static void Escape(strings::ByteSource* input, strings::ByteSink* output);
// Escape the given ByteSource to the given ByteSink.
// This is optimized for the case where the string is all printable 7-bit
// ASCII and does not contain a few other characters (such as quotes).
static void Escape(StringPiece input, strings::ByteSink* output);
private:
GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(JsonEscaping);
};
} // namespace converter
} // namespace util
} // namespace protobuf
} // namespace google
#endif // GOOGLE_PROTOBUF_UTIL_INTERNAL__JSON_ESCAPING_H__
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