1 files changed, 129 insertions, 0 deletions
diff --git a/dev/kernel/NeKit/Json.h b/dev/kernel/NeKit/Json.h
new file mode 100644
index 00000000..2b2c9c04
--- /dev/null
+++ b/dev/kernel/NeKit/Json.h
@@ -0,0 +1,129 @@
+
+/* -------------------------------------------
+
+  Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+// last-rev: 02/04/25
+
+#include <CompilerKit/CompilerKit.h>
+#include <NeKit/Defines.h>
+#include <NeKit/KString.h>
+#include <NeKit/Stream.h>
+#include <NeKit/Utils.h>
+
+#define kJSONMaxLen (8196)
+#define kJSONLen (256)
+#define kJSONNullArr "[]"
+#define kJSONNullObj "{}"
+
+namespace Kernel {
+/// @brief JavaScript object class
+class Json final {
+ public:
+  explicit Json() {
+    auto    len = kJSONMaxLen;
+    KString key = KString(len);
+    key += kJSONNullObj;
+
+    this->AsKey()   = key;
+    this->AsValue() = key;
+  }
+
+  explicit Json(SizeT lhsLen, SizeT rhsLen) : fKey(lhsLen), fValue(rhsLen) {}
+
+  ~Json() = default;
+
+  NE_COPY_DEFAULT(Json)
+
+  Bool& IsUndefined() { return fUndefined; }
+
+ private:
+  Bool    fUndefined;  // is this instance undefined?
+  KString fKey;
+  KString fValue;
+
+ public:
+  /// @brief returns the key of the json
+  /// @return the key as string view.
+  KString& AsKey() { return fKey; }
+
+  /// @brief returns the value of the json.
+  /// @return the key as string view.
+  KString& AsValue() { return fValue; }
+
+  static Json kNull;
+};
+
+/// @brief Json stream reader helper.
+struct JsonStreamReader final {
+  STATIC Json In(const Char* full_array) {
+    auto    start_val   = '{';
+    auto    end_val     = '}';
+    Boolean probe_value = false;
+
+    if (full_array[0] != start_val) {
+      if (full_array[0] != '[') return Json::kNull;
+
+      start_val = '[';
+      end_val   = ']';
+
+      probe_value = true;
+    }
+
+    SizeT len = rt_string_len(full_array);
+
+    SizeT key_len   = 0;
+    SizeT value_len = 0;
+
+    Json type(kJSONMaxLen, kJSONMaxLen);
+
+    for (SizeT i = 1; i < len; ++i) {
+      if (full_array[i] == '\r' || full_array[i] == '\n') continue;
+
+      if (probe_value) {
+        if (full_array[i] == end_val || full_array[i] == ',') {
+          probe_value = false;
+
+          ++value_len;
+        } else {
+          if (full_array[i] == '\'') {
+            type.AsValue().Data()[value_len] = 0;
+            break;
+          }
+
+          type.AsValue().Data()[value_len] = full_array[i];
+
+          ++value_len;
+        }
+      } else {
+        if (start_val == '[') continue;
+
+        if (full_array[i] == ':') {
+          type.AsKey().Data()[key_len] = 0;
+          ++key_len;
+
+          ++i;
+
+          while (full_array[i] == ' ' || full_array[i] == '\t') ++i;
+
+          probe_value = true;
+        } else {
+          type.AsKey().Data()[key_len] = full_array[i];
+
+          ++key_len;
+        }
+      }
+    }
+
+    type.AsValue().Data()[value_len] = 0;
+
+    return type;
+  }
+};
+
+using JsonStream = Stream<JsonStreamReader, Json>;
+}  // namespace Kernel