Fix repeat last motion for goto next/prev diagnostic (#9966)

book/src/keymap.md

@@ -49,7 +49,7 @@ Normal mode is the default mode when you launch helix. You can return to it from
 | `T`                   | Find 'till previous char                           | `till_prev_char`            |
 | `F`                   | Find previous char                                 | `find_prev_char`            |
 | `G`                   | Go to line number `<n>`                            | `goto_line`                 |
-| `Alt-.`               | Repeat last motion (`f`, `t` or `m`)               | `repeat_last_motion`        |
+| `Alt-.`               | Repeat last motion (`f`, `t`, `m`, `[` or `]`)     | `repeat_last_motion`        |
 | `Home`                | Move to the start of the line                      | `goto_line_start`           |
 | `End`                 | Move to the end of the line                        | `goto_line_end`             |
 | `Ctrl-b`, `PageUp`    | Move page up                                       | `page_up`                   |

helix-term/src/commands.rs

@@ -3439,7 +3439,8 @@ fn goto_last_diag(cx: &mut Context) {
 }
 
 fn goto_next_diag(cx: &mut Context) {
-    let (view, doc) = current!(cx.editor);
+    let motion = move |editor: &mut Editor| {
+        let (view, doc) = current!(editor);
 
         let cursor_pos = doc
             .selection(view.id)
@@ -3457,10 +3458,14 @@ fn goto_next_diag(cx: &mut Context) {
             None => return,
         };
         doc.set_selection(view.id, selection);
+    };
+
+    cx.editor.apply_motion(motion);
 }
 
 fn goto_prev_diag(cx: &mut Context) {
-    let (view, doc) = current!(cx.editor);
+    let motion = move |editor: &mut Editor| {
+        let (view, doc) = current!(editor);
 
         let cursor_pos = doc
             .selection(view.id)
@@ -3481,6 +3486,8 @@ fn goto_prev_diag(cx: &mut Context) {
             None => return,
         };
         doc.set_selection(view.id, selection);
+    };
+    cx.editor.apply_motion(motion)
 }
 
 fn goto_first_change(cx: &mut Context) {