From ffa59d4b368db7c4da3437d9ac28698ec50e4ee3 Mon Sep 17 00:00:00 2001
From: "Albert S." <mail@quitesimple.org>
Date: Mon, 3 Nov 2025 19:59:26 +0100
Subject: [PATCH] utils: Introduce catv()

---
 utils.cpp | 24 ++++++++++++++++++++++++
 utils.h   |  2 ++
 2 files changed, 26 insertions(+)

diff --git a/utils.cpp b/utils.cpp
index e1cb3ed..b18ce88 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -214,3 +214,27 @@ std::string utils::trim(std::string_view view)
 	}
 	return std::string{view};
 }
+
+std::string utils::catv(std::string_view view)
+{
+	std::string result;
+	result.reserve(view.length());
+	for(auto c : view)
+	{
+		if (!isascii(c))
+		{
+			result += "M-";
+			result += toascii(c);
+		}
+		else if(iscntrl(c))
+		{
+			result += '^';
+			result += c == '\177' ? '?': c | 0100;
+		}
+		else
+		{
+			result += c;
+		}
+	}
+	return result;
+}
diff --git a/utils.h b/utils.h
index 0e6816c..a1c21c2 100644
--- a/utils.h
+++ b/utils.h
@@ -91,6 +91,8 @@ template <class T> inline std::string toString(const T &v)
 }
 
 std::string trim(std::string_view view);
+std::string catv(std::string_view view);
+
 
 } // namespace utils
 #endif