Diff: src/ArduinoJson/Strings/SizedRamStringAdapter.hpp

Revision:

0:18ba3960b5dd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ArduinoJson/Strings/SizedRamStringAdapter.hpp	Fri Mar 19 19:30:50 2021 +0000
@@ -0,0 +1,55 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2021
+// MIT License
+
+#pragma once
+
+#include <ArduinoJson/Namespace.hpp>
+#include <ArduinoJson/Strings/IsString.hpp>
+#include <ArduinoJson/Strings/StoragePolicy.hpp>
+
+#include <string.h>  // strcmp
+
+namespace ARDUINOJSON_NAMESPACE {
+
+class SizedRamStringAdapter {
+ public:
+  SizedRamStringAdapter(const char* str, size_t n) : _str(str), _size(n) {}
+
+  int compare(const char* other) const {
+    return safe_strncmp(_str, other, _size);
+  }
+
+  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, _str, n);
+  }
+
+  size_t size() const {
+    return _size;
+  }
+
+  const char* begin() const {
+    return _str;
+  }
+
+  typedef storage_policies::store_by_copy storage_policy;
+
+ private:
+  const char* _str;
+  size_t _size;
+};
+
+template <typename TChar>
+inline SizedRamStringAdapter adaptString(const TChar* str, size_t size) {
+  return SizedRamStringAdapter(reinterpret_cast<const char*>(str), size);
+}
+
+}  // namespace ARDUINOJSON_NAMESPACE