allow editing of prev command with backspace

1 files changed, 7 insertions, 1 deletions

diff --git a/src/main.rs b/src/main.rs
index 9d8f191..4e3bb23 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -195,7 +195,13 @@ fn main() {
 
             // Backspace (127 on most systems)
             127 => {
-                if line.del_left().is_some() {
+                if line.is_empty() && !line.is_dirty() && !history.is_empty() {
+                    // take previous command for editing
+                    let cmd = history[history.len() - 1].clone();
+                    io::stdout().write_all(&cmd).unwrap();
+                    io::stdout().flush().unwrap();
+                    line.set_content(cmd);
+                } else if line.del_left().is_some() {
                     print!("\x08 \x08");
                 }
             }