From d1b61b02b1a6bdaa337ff060eda3d3d5fb67827d Mon Sep 17 00:00:00 2001
From: Hannes Schulze <haschu0103@outlook.de>
Date: Thu, 6 Feb 2025 16:34:23 +0100
Subject: refactor: move containers into separate directory

---
 lib/nes/common/containers/path-view.hh | 52 ++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 lib/nes/common/containers/path-view.hh

(limited to 'lib/nes/common/containers/path-view.hh')

diff --git a/lib/nes/common/containers/path-view.hh b/lib/nes/common/containers/path-view.hh
new file mode 100644
index 0000000..7741060
--- /dev/null
+++ b/lib/nes/common/containers/path-view.hh
@@ -0,0 +1,52 @@
+#pragma once
+
+#include "nes/common/types.hh"
+#include <string_view>
+
+namespace nes
+{
+	/// Non-owning copy of a path, useful for iterating over its components.
+	class path_view
+	{
+		std::string_view path_;
+
+	public:
+		/// An iterator for the path components.
+		class iterator
+		{
+			friend path_view;
+
+			char const* current_{ nullptr }; // Start of the current component
+			u32 component_length_{ 0 }; // Length of the current component
+			u32 remaining_{ 0 }; // Number of characters remaining in the buffer, including the current component.
+
+		public:
+			auto operator==(iterator const& other) -> bool { return current_ == other.current_; }
+			auto operator!=(iterator const& other) -> bool { return current_ != other.current_; }
+
+			auto operator*() const -> std::string_view;
+			auto operator++() -> iterator&;
+			auto operator++(int) -> iterator;
+
+		private:
+			explicit iterator(char const* current, u32 const component_length, u32 const remaining)
+				: current_{ current }
+				, component_length_{ component_length }
+				, remaining_{ remaining }
+			{
+			}
+		};
+
+		explicit path_view() = default;
+		explicit path_view(std::string_view const path)
+			: path_{ path }
+		{
+		}
+
+		auto get_path() const -> std::string_view { return path_; }
+
+		auto begin() const -> iterator;
+		auto end() const -> iterator;
+		auto is_empty() const -> bool { return begin() == end(); }
+	};
+} // namespace nes::app
\ No newline at end of file
-- 
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