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Diffstat (limited to 'include/lib/ArduinoJson/Strings/FlashStringAdapter.hpp')
-rw-r--r-- | include/lib/ArduinoJson/Strings/FlashStringAdapter.hpp | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/lib/ArduinoJson/Strings/FlashStringAdapter.hpp b/include/lib/ArduinoJson/Strings/FlashStringAdapter.hpp new file mode 100644 index 0000000..292e348 --- /dev/null +++ b/include/lib/ArduinoJson/Strings/FlashStringAdapter.hpp @@ -0,0 +1,62 @@ +// ArduinoJson - https://arduinojson.org +// Copyright Benoit Blanchon 2014-2021 +// MIT License + +#pragma once + +#include <ArduinoJson/Polyfills/pgmspace.hpp> +#include <ArduinoJson/Strings/FlashStringIterator.hpp> +#include <ArduinoJson/Strings/IsString.hpp> +#include <ArduinoJson/Strings/StoragePolicy.hpp> + +namespace ARDUINOJSON_NAMESPACE { + +class FlashStringAdapter { + public: + FlashStringAdapter(const __FlashStringHelper* str) : _str(str) {} + + int compare(const char* other) const { + if (!other && !_str) + return 0; + if (!_str) + return -1; + if (!other) + return 1; + return -strcmp_P(other, reinterpret_cast<const char*>(_str)); + } + + bool equals(const char* expected) const { + return compare(expected) == 0; + } + + bool isNull() const { + return !_str; + } + + void copyTo(char* p, size_t n) const { + memcpy_P(p, reinterpret_cast<const char*>(_str), n); + } + + size_t size() const { + if (!_str) + return 0; + return strlen_P(reinterpret_cast<const char*>(_str)); + } + + FlashStringIterator begin() const { + return FlashStringIterator(_str); + } + + typedef storage_policies::store_by_copy storage_policy; + + private: + const __FlashStringHelper* _str; +}; + +inline FlashStringAdapter adaptString(const __FlashStringHelper* str) { + return FlashStringAdapter(str); +} + +template <> +struct IsString<const __FlashStringHelper*> : true_type {}; +} // namespace ARDUINOJSON_NAMESPACE |