From d68ad893f08f55e151cfaafd9c07cf8a0ebb8abc Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Sat, 14 Sep 2024 22:45:48 +0300
Subject: [PATCH] Kernel/Shell: Add support for delete key

---
 kernel/kernel/Terminal/TTY.cpp    |  3 +++
 userspace/programs/Shell/main.cpp | 10 ++++++++++
 2 files changed, 13 insertions(+)

diff --git a/kernel/kernel/Terminal/TTY.cpp b/kernel/kernel/Terminal/TTY.cpp
index 2f5b3d69..b6024ef2 100644
--- a/kernel/kernel/Terminal/TTY.cpp
+++ b/kernel/kernel/Terminal/TTY.cpp
@@ -222,6 +222,9 @@ namespace Kernel
 				case LibInput::Key::Escape:
 					ansi_c_str = "\e";
 					break;
+				case LibInput::Key::Delete:
+					ansi_c_str = "\x7F";
+					break;
 				case LibInput::Key::ArrowUp:
 					ansi_c_str = "\e[A";
 					break;
diff --git a/userspace/programs/Shell/main.cpp b/userspace/programs/Shell/main.cpp
index 1d8fbf03..d016a635 100644
--- a/userspace/programs/Shell/main.cpp
+++ b/userspace/programs/Shell/main.cpp
@@ -892,6 +892,16 @@ int main(int argc, char** argv)
 			putchar('\n');
 			clean_exit(0);
 			break;
+		case '\x7F': // delete
+			if (col < buffers[index].size())
+			{
+				buffers[index].remove(col);
+				while (col < buffers[index].size() && (buffers[index][col] & 0xC0) == 0x80)
+					buffers[index].remove(col);
+				printf("\e[s%s \e[u", buffers[index].data() + col);
+				fflush(stdout);
+			}
+			break;
 		case '\n':
 			putchar('\n');
 			if (!buffers[index].empty())