From 234051d6bca28d8379cf19633ded47ba1a165c09 Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Mon, 3 Jun 2024 18:03:19 +0300
Subject: [PATCH] Shell: Optimize drawing characters at the end of a command

---
 userspace/Shell/main.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/userspace/Shell/main.cpp b/userspace/Shell/main.cpp
index feebfe41..4fc75031 100644
--- a/userspace/Shell/main.cpp
+++ b/userspace/Shell/main.cpp
@@ -1064,7 +1064,7 @@ int main(int argc, char** argv)
 			buffers[index].clear();
 			col = 0;
 			break;
-		case '\x04':
+		case '\x04': // ^D
 			fprintf(stdout, "\n");
 			clean_exit();
 			break;
@@ -1086,7 +1086,10 @@ int main(int argc, char** argv)
 			break;
 		default:
 			MUST(buffers[index].insert(ch, col++));
-			fprintf(stdout, "%c\e[s%s\e[u", ch, buffers[index].data() + col);
+			if (col == buffers[index].size())
+				fputc(ch, stdout);
+			else
+				fprintf(stdout, "%c\e[s%s\e[u", ch, buffers[index].data() + col);
 			fflush(stdout);
 			break;
 		}