===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/format-draw.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -c -r1.2 -r1.3
*** src/usr.bin/tmux/format-draw.c	2019/03/18 21:55:04	1.2
--- src/usr.bin/tmux/format-draw.c	2019/03/20 07:13:02	1.3
***************
*** 1,4 ****
! /* $OpenBSD: format-draw.c,v 1.2 2019/03/18 21:55:04 nicm Exp $ */
  
  /*
   * Copyright (c) 2019 Nicholas Marriott <nicholas.marriott@gmail.com>
--- 1,4 ----
! /* $OpenBSD: format-draw.c,v 1.3 2019/03/20 07:13:02 nicm Exp $ */
  
  /*
   * Copyright (c) 2019 Nicholas Marriott <nicholas.marriott@gmail.com>
***************
*** 527,532 ****
--- 527,533 ----
  
  	style_set(&sy, base);
  	TAILQ_INIT(&frs);
+ 	log_debug("%s: %s", __func__, expanded);
  
  	/*
  	 * We build three screens for left, right, centre alignment, one for
***************
*** 574,583 ****
  
  		/* This is a style. Work out where the end is and parse it. */
  		end = format_skip(cp + 2, "]");
! 		if (end == NULL)
  			return;
  		tmp = xstrndup(cp + 2, end - (cp + 2));
  		if (style_parse(&sy, base, tmp) != 0) {
  			free(tmp);
  			return;
  		}
--- 575,587 ----
  
  		/* This is a style. Work out where the end is and parse it. */
  		end = format_skip(cp + 2, "]");
! 		if (end == NULL) {
! 			log_debug("no terminating ] at '%s'", cp + 2);
  			return;
+ 		}
  		tmp = xstrndup(cp + 2, end - (cp + 2));
  		if (style_parse(&sy, base, tmp) != 0) {
+ 			log_debug("invalid style '%s'", tmp);
  			free(tmp);
  			return;
  		}