MHR-21: refactors.

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/Common/StdKit/String.hpp b/Common/StdKit/String.hpp
new file mode 100644
index 0000000..a05a31c
--- /dev/null
+++ b/Common/StdKit/String.hpp
@@ -0,0 +1,90 @@
+/*
+ *	========================================================
+ *
+ *	CompilerKit
+ * 	Copyright SoftwareLabs, all rights reserved.
+ *
+ * 	========================================================
+ */
+
+#pragma once
+
+#include <Common/Defines.hpp>
+#include <Common/StdKit/ErrorOr.hpp>
+
+namespace CompilerKit
+{
+	/**
+	 * @brief StringView class, contains a C string and manages it.
+	 * @note No need to manage it it's getting deleted by default.
+	 */
+
+	class StringView final
+	{
+	public:
+		explicit StringView() = delete;
+
+		explicit StringView(SizeType Sz) noexcept
+			: m_Sz(Sz)
+		{
+			m_Data = new char[Sz];
+			assert(m_Data);
+		}
+
+		~StringView() noexcept
+		{
+			if (m_Data)
+			{
+				memset(m_Data, 0, m_Sz);
+				delete[] m_Data;
+
+				m_Data = nullptr;
+			}
+		}
+
+		MPCC_COPY_DEFAULT(StringView);
+
+		CharType*		Data();
+		const CharType* CData() const;
+		SizeType		Length() const;
+
+		bool operator==(const CharType* rhs) const;
+		bool operator!=(const CharType* rhs) const;
+
+		bool operator==(const StringView& rhs) const;
+		bool operator!=(const StringView& rhs) const;
+
+		StringView& operator+=(const CharType* rhs);
+		StringView& operator+=(const StringView& rhs);
+
+		operator bool()
+		{
+			return m_Data && m_Data[0] != 0;
+		}
+
+		bool operator!()
+		{
+			return !m_Data || m_Data[0] == 0;
+		}
+
+	private:
+		char*	 m_Data{nullptr};
+		SizeType m_Sz{0};
+		SizeType m_Cur{0};
+
+		friend class StringBuilder;
+	};
+
+	/**
+	 * @brief StringBuilder class
+	 * @note These results shall call delete[] after they're used.
+	 */
+	struct StringBuilder final
+	{
+		static StringView  Construct(const CharType* 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 CompilerKit