Merged in MHR-23 (pull request #12)

MHR-23: Merge work.

1 files changed, 76 insertions, 0 deletions

diff --git a/Kernel/NewKit/String.hpp b/Kernel/NewKit/String.hpp
new file mode 100644
index 00000000..6bf5edfd
--- /dev/null
+++ b/Kernel/NewKit/String.hpp
@@ -0,0 +1,76 @@
+/* -------------------------------------------
+
+    Copyright SoftwareLabs
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.hpp>
+#include <NewKit/ErrorOr.hpp>
+#include <NewKit/KernelCheck.hpp>
+
+namespace NewOS
+{
+	class StringView final
+	{
+	public:
+		explicit StringView() = default;
+
+		explicit StringView(Size Sz)
+			: fSz(Sz)
+		{
+			MUST_PASS(Sz > 1);
+			fData = new Char[Sz];
+			MUST_PASS(fData);
+		}
+
+		~StringView()
+		{
+			if (fData)
+				delete[] fData;
+		}
+
+		StringView& operator=(const StringView&) = default;
+		StringView(const StringView&)			 = default;
+
+		Char*		Data();
+		const Char* CData();
+		Size		Length() const;
+
+		bool operator==(const Char* rhs) const;
+		bool operator!=(const Char* rhs) const;
+
+		bool operator==(const StringView& rhs) const;
+		bool operator!=(const StringView& rhs) const;
+
+		StringView& operator+=(const Char* rhs);
+		StringView& operator+=(const StringView& rhs);
+
+		operator bool()
+		{
+			return fData;
+		}
+
+		bool operator!()
+		{
+			return fData;
+		}
+
+	private:
+		Char* fData{nullptr};
+		Size  fSz{0};
+		Size  fCur{0};
+
+		friend class StringBuilder;
+	};
+
+	struct StringBuilder final
+	{
+		static ErrorOr<StringView> Construct(const Char* data);
+		static const char*		   FromInt(const char* fmt, int n);
+		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);
+	};
+} // namespace NewOS