===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/input.c,v
retrieving revision 1.7
retrieving revision 1.8
diff -c -r1.7 -r1.8
*** src/usr.bin/tmux/input.c	2009/06/04 18:48:24	1.7
--- src/usr.bin/tmux/input.c	2009/06/04 21:02:21	1.8
***************
*** 1,4 ****
! /* $OpenBSD: input.c,v 1.7 2009/06/04 18:48:24 nicm Exp $ */
  
  /*
   * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
--- 1,4 ----
! /* $OpenBSD: input.c,v 1.8 2009/06/04 21:02:21 nicm Exp $ */
  
  /*
   * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
***************
*** 67,72 ****
--- 67,73 ----
  void	 input_handle_sequence_cuf(struct input_ctx *);
  void	 input_handle_sequence_cub(struct input_ctx *);
  void	 input_handle_sequence_dch(struct input_ctx *);
+ void	 input_handle_sequence_cbt(struct input_ctx *);
  void	 input_handle_sequence_dl(struct input_ctx *);
  void	 input_handle_sequence_ich(struct input_ctx *);
  void	 input_handle_sequence_il(struct input_ctx *);
***************
*** 102,107 ****
--- 103,109 ----
  	{ 'L', input_handle_sequence_il },
  	{ 'M', input_handle_sequence_dl },
  	{ 'P', input_handle_sequence_dch },
+ 	{ 'Z', input_handle_sequence_cbt },
  	{ 'd', input_handle_sequence_vpa },
  	{ 'f', input_handle_sequence_cup },
  	{ 'g', input_handle_sequence_tbc },
***************
*** 925,930 ****
--- 927,956 ----
  		n = 1;
  
  	screen_write_deletecharacter(&ictx->ctx, n);
+ }
+ 
+ void
+ input_handle_sequence_cbt(struct input_ctx *ictx)
+ {
+ 	struct screen  *s = ictx->ctx.s;
+ 	uint16_t	n;
+ 
+ 	if (ictx->private != '\0')
+ 		return;
+ 
+ 	if (ARRAY_LENGTH(&ictx->args) > 1)
+ 		return;
+ 	if (input_get_argument(ictx, 0, &n, 1) != 0)
+ 		return;
+ 	if (n == 0)
+ 		n = 1;
+ 
+ 	/* Find the previous tab point, n times. */
+ 	while (s->cx > 0 && n-- > 0) {
+ 		do
+ 			s->cx--;
+ 		while (s->cx > 0 && !bit_test(s->tabs, s->cx));
+ 	}
  }
  
  void