[gtksourceview/wip/chergert/vim] try harder to keep character from moving past end of line

[Christian Hergert <chergert src gnome org>]

commit 6b8ddabfe70c82ab795f9e8060a8f7b6f8d9245d
Author: Christian Hergert <chergert redhat com>
Date:   Mon Nov 1 17:13:24 2021 -0700

    try harder to keep character from moving past end of line

 gtksourceview/vim/gtk-source-vim-normal.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
---
diff --git a/gtksourceview/vim/gtk-source-vim-normal.c b/gtksourceview/vim/gtk-source-vim-normal.c
index db584ae4..56d4f74c 100644
--- a/gtksourceview/vim/gtk-source-vim-normal.c
+++ b/gtksourceview/vim/gtk-source-vim-normal.c
@@ -262,6 +262,19 @@ go_backward_char (GtkSourceVimNormal *self)
                gtk_source_vim_state_select (GTK_SOURCE_VIM_STATE (self), &iter, &iter);
 }
 
+static void
+keep_on_char (GtkSourceVimNormal *self)
+{
+       GtkTextIter iter;
+
+       gtk_source_vim_state_get_buffer (GTK_SOURCE_VIM_STATE (self), &iter, NULL);
+
+       if (gtk_text_iter_ends_line (&iter) && !gtk_text_iter_starts_line (&iter))
+       {
+               go_backward_char (self);
+       }
+}
+
 static gboolean
 key_handler_count (GtkSourceVimNormal *self,
                    guint               keyval,
@@ -426,6 +439,7 @@ key_handler_command (GtkSourceVimNormal *self,
                        if (self->repeat != NULL)
                        {
                                gtk_source_vim_state_repeat (self->repeat);
+                               keep_on_char (self);
                                return TRUE;
                        }
                        break;
@@ -1011,6 +1025,9 @@ gtk_source_vim_normal_resume (GtkSourceVimState *state,
                g_set_object (&self->last_visual, from);
        }
 
+       /* If we're still on the \n, go back a char */
+       keep_on_char (self);
+
        /* Always scroll the insert mark onscreen */
        gtk_text_view_scroll_mark_onscreen (GTK_TEXT_VIEW (view), insert);