feat!(kernel): Rename NewKit to NeKit.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

1 files changed, 82 insertions, 0 deletions

diff --git a/dev/kernel/NeKit/KString.h b/dev/kernel/NeKit/KString.h
new file mode 100644
index 00000000..16b09a78
--- /dev/null
+++ b/dev/kernel/NeKit/KString.h
@@ -0,0 +1,82 @@
+/* -------------------------------------------
+
+  Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <CompilerKit/CompilerKit.h>
+#include <NeKit/Defines.h>
+#include <NeKit/ErrorOr.h>
+#include <NeKit/KernelPanic.h>
+#include <NeKit/Utils.h>
+
+#define kMinimumStringSize (8196U)
+
+namespace Kernel {
+/// @brief Kernel string class, not dynamic.
+class KString final {
+ public:
+  explicit KString() {
+    fDataSz = kMinimumStringSize;
+
+    fData = new Char[fDataSz];
+    MUST_PASS(fData);
+
+    rt_set_memory(fData, 0, fDataSz);
+  }
+
+  explicit KString(SizeT Sz) : fDataSz(Sz) {
+    MUST_PASS(Sz > 1);
+
+    fData = new Char[Sz];
+    MUST_PASS(fData);
+
+    rt_set_memory(fData, 0, Sz);
+  }
+
+  ~KString() {
+    if (fData) {
+      delete[] fData;
+      fData = nullptr;
+    }
+  }
+
+  NE_COPY_DEFAULT(KString)
+
+  Char*       Data();
+  const Char* CData() const;
+  Size        Length() const;
+
+  bool operator==(const Char* rhs) const;
+  bool operator!=(const Char* rhs) const;
+
+  bool operator==(const KString& rhs) const;
+  bool operator!=(const KString& rhs) const;
+
+  KString& operator+=(const Char* rhs);
+  KString& operator+=(const KString& rhs);
+
+  operator bool() { return fData; }
+
+  bool operator!() { return fData; }
+
+ private:
+  Char* fData{nullptr};
+  Size  fDataSz{0};
+  Size  fCur{0};
+
+  friend class KStringBuilder;
+};
+
+class KStringBuilder final {
+ public:
+  static ErrorOr<KString> Construct(const Char* data);
+  static const Char*      FromBool(const Char* fmt, bool n);
+  static const Char*      Format(const Char* fmt, const Char* from);
+  static bool             Equals(const Char* lhs, const Char* rhs);
+  static bool             Equals(const Utf8Char* lhs, const Utf8Char* rhs);
+  static bool             Equals(const WideChar* lhs, const WideChar* rhs);
+};
+}  // namespace Kernel