From 753b64c8263f0c310e4baa786ff42050e2f66cd1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Lundeg=C3=A5rd=20Kylander?= <me+git@gazt.in>
Date: Sat, 11 Jul 2026 22:11:39 +0200
Subject: [PATCH] Add variation of 'with' that extracts the trailing string and
 feeds it back into the callback

---
 core-library/views/command-line-args-view.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/core-library/views/command-line-args-view.h b/core-library/views/command-line-args-view.h
index 35c8906..12f8a3e 100644
--- a/core-library/views/command-line-args-view.h
+++ b/core-library/views/command-line-args-view.h
@@ -1,4 +1,6 @@
 #pragma once
+#include "core-library/traits/function-traits.h"
+
 #include <ranges>
 #include <span>
 #include <string_view>
@@ -22,6 +24,17 @@ public:
 			std::invoke(std::forward<F>(function));
 	}
 
+	template<typename F>
+	    requires core::callable_with_argument_converted<F, std::string_view>
+	void with(std::string_view arg_to_match_view, F&& function) const
+	{
+		if (m_arg_view.starts_with(arg_to_match_view))
+		{
+			const std::string_view value_part = m_arg_view.substr(arg_to_match_view.size());
+			std::invoke(std::forward<F>(function), core::first_argument_type_t<F>{value_part});
+		}
+	}
+
 private:
 	std::string_view m_arg_view;
 	std::span<char*> m_modifiers;