From 6ea04c91b2291da46cac95e64733b2f1ef89454e Mon Sep 17 00:00:00 2001
From: Jiajie Chen <noc@jiegec.ac.cn>
Date: Thu, 28 Feb 2019 15:53:41 +0800
Subject: [PATCH] Fix line editing bug

---
 kernel/src/shell.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/src/shell.rs b/kernel/src/shell.rs
index e85e6bb..2031fc0 100644
--- a/kernel/src/shell.rs
+++ b/kernel/src/shell.rs
@@ -159,7 +159,9 @@ fn get_line(history: &mut Vec<Vec<u8>>) -> String {
                 }
                 cursor += 1;
                 for _i in cursor..line_vec.len() {
-                    put_char(BS);
+                    put_char(ESC);
+                    put_char(b'[');
+                    put_char(b'D');
                 }
             }
             _ => {