// ArduinoJson - https://arduinojson.org

// Copyright © 2014-2023, Benoit BLANCHON

// MIT License

#pragma once

#include <ArduinoJson/Namespace.hpp>

ARDUINOJSON_BEGIN_PRIVATE_NAMESPACE

class EscapeSequence {

 public:

  // Optimized for code size on a 8-bit AVR

  static char escapeChar(char c) {

    const char* p = escapeTable(true);

    while (p[0] && p[1] != c) {

      p += 2;

    }

    return p[0];

  }

  // Optimized for code size on a 8-bit AVR

  static char unescapeChar(char c) {

    const char* p = escapeTable(false);

    for (;;) {

      if (p[0] == '\0')

        return 0;

      if (p[0] == c)

        return p[1];

      p += 2;

    }

  }

 private:

  static const char* escapeTable(bool excludeSolidus) {

    return &"//\"\"\\\\b\bf\fn\nr\rt\t"[excludeSolidus ? 2 : 0];

  }

};

ARDUINOJSON_END_PRIVATE_NAMESPACE