More tests and documentation

Also improve find file and switch buffer a bit.

Implement word backward/forward.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/window.h b/src/window.h
index 81535a0..14e041e 100644
--- a/src/window.h
+++ b/src/window.h
@@ -8,8 +8,11 @@ struct window {
   uint32_t width;
   uint32_t height;
   struct buffer *buffer;
+  struct buffer *prev_buffer;
 };
 
 void window_update_buffer(struct window *window, struct command_list *commands,
                           uint64_t frame_time, uint32_t *relline,
                           uint32_t *relcol);
+
+void window_set_buffer(struct window *window, struct buffer *buffer);