shell: fix completion regression

Commit 5b0ec6b075662d24fb72acf394335731fd9db5ba introduced a regression
where arguments already input by the user would be erased instead of
preserved. This change fixes this.

1 files changed, 8 insertions, 0 deletions

diff --git a/shell.c b/shell.c
index 9040824..e91cb90 100644
--- a/shell.c
+++ b/shell.c
@@ -854,9 +854,17 @@ shell_process_tabulation(void)
     }
 
     if (error == ERR_AGAIN) {
+        unsigned long cursor;
+
+        cursor = shell_cursor;
         shell_cmd_print_matches(cmd, size);
         shell_prompt();
         shell_restore();
+
+        /* Keep existing arguments as they are */
+        while (shell_cursor != cursor) {
+            shell_process_left();
+        }
     }
 
     name = shell_cmd_name(cmd);