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// ArduinoJson - arduinojson.org
// Copyright Benoit Blanchon 2014-2018
// MIT License
#pragma once
#if ARDUINOJSON_ENABLE_PROGMEM
namespace ArduinoJson {
namespace Internals {
template <>
struct StringTraits<const __FlashStringHelper*, void> {
class Reader {
const char* _ptr;
public:
Reader(const __FlashStringHelper* ptr)
: _ptr(reinterpret_cast<const char*>(ptr)) {}
void move() {
_ptr++;
}
char current() const {
return pgm_read_byte_near(_ptr);
}
char next() const {
return pgm_read_byte_near(_ptr + 1);
}
};
static bool equals(const __FlashStringHelper* str, const char* expected) {
const char* actual = reinterpret_cast<const char*>(str);
if (!actual || !expected) return actual == expected;
return strcmp_P(expected, actual) == 0;
}
static bool is_null(const __FlashStringHelper* str) {
return !str;
}
typedef const char* duplicate_t;
template <typename Buffer>
static duplicate_t duplicate(const __FlashStringHelper* str, Buffer* buffer) {
if (!str) return NULL;
size_t size = strlen_P((const char*)str) + 1;
void* dup = buffer->alloc(size);
if (dup != NULL) memcpy_P(dup, (const char*)str, size);
return static_cast<duplicate_t>(dup);
}
static const bool has_append = false;
static const bool has_equals = true;
static const bool should_duplicate = true;
};
} // namespace Internals
} // namespace ArduinoJson
#endif
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