Optionally display line numbers alongside file

Enable/disable with

 :set number [0|1]

1 files changed, 2 insertions, 0 deletions

diff --git a/vis.c b/vis.c
index e9eb7c8..9d708ec 100644
--- a/vis.c
+++ b/vis.c
@@ -1277,6 +1277,8 @@ static bool cmd_set(Filerange *range, const char *argv[]) {
 		}
 		window_syntax_set(vis->win->win, NULL);
 		return false;
+	} else if (!strcmp("number", argv[1])) {
+		window_line_numbers_show(vis->win->win, argv[2][0] == '1');
 	} else {
 		editor_info_show(vis, "Unknown option: `%s'", argv[1]);
 		return false;