2.9 now.

Thomas Sattler.

CHANGES

@@ -1,9 +1,170 @@
+CHANGES FROM 2.8 to 2.9
+
+* Attempt to preserve horizontal cursor position as well as vertical with
+  reflow.
+
+* Rewrite main-vertical and horizontal and change layouts to better handle the
+  case where all panes won't fit into the window size, reduce problems with
+  pane border status lines and fix other bugs mostly found by Thomas Sattler.
+
+* Add format variables for the default formats in the various modes
+  (tree_mode_format and so on) and add a -a flag to display-message to list
+  variables with values.
+
+* Add a -v flag to display-message to show verbose messages as the format is
+  parsed, this allows formats to be debugged
+
+* Add support for HPA (\033[`).
+
+* Add support for origin mode (\033[?6h).
+
+* No longer clear history on RIS.
+
+* Extend the #[] style syntax and use that together with previous format
+  changes to allow the status line to be entirely configured with a single
+  option.
+
+  Now that it is possible to configure their content, enable the existing code
+  that lets the status line be multiple lines in height. The status option can
+  now take a value of 2, 3, 4 or 5 (as well as the previous on or off) to
+  configure more than one line. The new status-format array option configures
+  the format of each line, the default just references the existing status-*
+  options, although some of the more obscure status options may be eliminated
+  in time.
+
+  Additions to the #[] syntax are: "align" to specify alignment (left, centre,
+  right), "list" for the window list and "range" to configure ranges of text
+  for the mouse bindings.
+
+  The "align" keyword can also be used to specify alignment of entries in tree
+  mode and the pane status lines.
+
+* Add E: and T: format modifiers to expand a format twice (useful to expand the
+  value of an option).
+
+* The individual -fg, -bg and -attr options have been removed; they
+  were superseded by -style options in tmux 1.9.
+
+* Allow more than one mode to be opened in a pane. Modes are kept on a stack
+  and retrieved if the same mode is entered again. Exiting the active mode goes
+  back to the previous one.
+
+* When showing command output in copy mode, call it view mode instead (affects
+  pane_mode format).
+
+* Add -b to display-panes like run-shell.
+
+* Handle UTF-8 in word-separators option.
+
+* New "terminal" colour allowing options to use the terminal default colour
+  rather than inheriting the default from a parent option.
+
+* Do not move the cursor in copy mode when the mouse wheel is used.
+
+* Use the same working directory rules for jobs as new windows rather than
+  always starting in the user's home.
+
+* Allow panes to be one line or column in size.
+
+* Go to last line when goto-line number is out of range in copy mode.
+
+* Yank previously cut text if any with C-y in the command prompt, only use the
+  buffer if no text has been cut.
+
+* Add q: format modifier to quote shell special characters.
+
+* Add StatusLeft and StatusRight mouse locations (keys such as
+  MouseDown1StatusLeft) for the status-left and status-right areas of the
+  status line.
+
+* Add -Z to find-window.
+
+* Support for windows larger than the client. This adds two new options,
+  window-size and default-size, and a new command, resize-window. The
+  force-width and force-height options and the session_width and session_height
+  formats have been removed.
+
+  The new window-size option tells tmux how to work out the size of windows:
+  largest means it picks the size of the largest session, smallest the smallest
+  session (similar to the old behaviour) and manual means that it does not
+  automatically resize windows. aggressive-resize modifies the choice of
+  session for largest and smallest as it did before.
+
+  If a window is in a session attached to a client that is too small, only part
+  of the window is shown. tmux attempts to keep the cursor visible, so the part
+  of the window displayed is changed as the cursor moves (with a small delay,
+  to try and avoid excess redrawing when applications redraw status lines or
+  similar that are not currently visible).
+
+  Drawing windows which are larger than the client is not as efficient as those
+  which fit, particularly when the cursor moves, so it is recommended to avoid
+  using this on slow machines or networks (set window-size to smallest or
+  manual).
+
+  The resize-window command can be used to resize a window manually. If it is
+  used, the window-size option is automatically set to manual for the window
+  (undo this with "setw -u window-size"). resize-window works in a similar way
+  to resize-pane (-U -D -L -R -x -y flags) but also has -a and -A flags. -a
+  sets the window to the size of the smallest client (what it would be if
+  window-size was smallest) and -A the largest.
+
+  For the same behaviour as force-width or force-height, use resize-window -x
+  or -y.
+
+  If the global window-size option is set to manual, the default-size option is
+  used for new windows. If -x or -y is used with new-session, that sets the
+  default-size option for the new session.
+
+  The maximum size of a window is 10000x10000. But expect applications to
+  complain and higher memory use if making a window that big. The minimum size
+  is the size required for the current layout including borders.
+
+  The refresh-client command can be used to pan around a window, -U -D -L -R
+  moves up, down, left or right and -c returns to automatic cursor
+  tracking. The position is reset when the current window is changed.
+
+CHANGES FROM 2.7 to 2.8
+
+* Make display-panes block the client until a pane is chosen or it
+  times out.
+
+* Clear history on RIS like most other terminals do.
+
+* Add an "Any" key to run a command if a key is pressed that is not
+  bound in the current key table.
+
+* Expand formats in load-buffer and save-buffer.
+
+* Add a rectangle_toggle format.
+
+* Add set-hook -R to run a hook immediately.
+
+* Add README.ja.
+
+* Add pane focus hooks.
+
+* Allow any punctuation as separator for s/x/y not only /.
+
+* Improve resizing with the mouse (fix resizing the wrong pane in some
+  layouts, and allow resizing multiple panes at the same time).
+
+* Allow , and } to be escaped in formats as #, and #}.
+
+* Add KRB5CCNAME to update-environment.
+
+* Change meaning of -c to display-message so the client is used if it
+  matches the session given to -t.
+
+* Fixes to : form of SGR.
+
+* Add x and X to choose-tree to kill sessions, windows or panes.
+
 CHANGES FROM 2.6 TO 2.7
 
 * Remove EVENT_* variables from environment on platforms where tmux uses them
   so they do not pass on to panes.
 
-* Fixed for hooks at server exit.
+* Fixes for hooks at server exit.
 
 * Remove SGR 10 (was equivalent to SGR 0 but no other terminal seems to do
   this).

CONTRIBUTING

@@ -18,7 +18,7 @@ This should include at least the output of:
     $ uname -sp && tmux -V && echo $TERM
 
 Please do not report bugs (crashes, incorrect behaviour) without reproducing on
-a tmux built from Git master.
+a tmux built from the latest code in Git.
 
 Note that TERM inside tmux must be a variant of screen or tmux (for example:
 screen or screen-256color, tmux or tmux-256color). Please ensure this is the

Makefile.am

@@ -6,7 +6,7 @@ CLEANFILES = tmux.1.mdoc tmux.1.man
 
 # Distribution tarball options.
 EXTRA_DIST = \
-	CHANGES README COPYING example_tmux.conf compat/*.[ch] \
+	CHANGES README README.ja COPYING example_tmux.conf compat/*.[ch] \
 	osdep-*.c mdoc2man.awk tmux.1
 
 # Preprocessor flags.
@@ -100,6 +100,7 @@ dist_tmux_SOURCES = \
 	cmd-rename-session.c \
 	cmd-rename-window.c \
 	cmd-resize-pane.c \
+	cmd-resize-window.c \
 	cmd-respawn-pane.c \
 	cmd-respawn-window.c \
 	cmd-rotate-window.c \
@@ -131,6 +132,7 @@ dist_tmux_SOURCES = \
 	control.c \
 	environ.c \
 	format.c \
+	format-draw.c \
 	grid-view.c \
 	grid.c \
 	hooks.c \
@@ -195,7 +197,7 @@ install-exec-hook:
 			>$(srcdir)/tmux.1.mdoc; \
 	else \
 		sed -e "s|@SYSCONFDIR@|$(sysconfdir)|g" $(srcdir)/tmux.1| \
-			$(AWK) -f$(srcdir)/mdoc2man.awk >$(srcdir)/tmux.1.man; \
+			$(AWK) -f $(srcdir)/mdoc2man.awk >$(srcdir)/tmux.1.man; \
 	fi
 	$(mkdir_p) $(DESTDIR)$(mandir)/man1
 	$(INSTALL_DATA) $(srcdir)/tmux.1.@MANFORMAT@ \

README

@@ -1,8 +1,8 @@
 Welcome to tmux!
 
-tmux is a "terminal multiplexer", it enables a number of terminals (or windows)
+tmux is a terminal multiplexer: it enables a number of terminals to be created,
-to be accessed and controlled from a single terminal. tmux is intended to be a
+accessed, and controlled from a single screen. tmux may be detached from a
-simple, modern, BSD-licensed alternative to programs such as GNU screen.
+screen and continue running in the background, then later reattached.
 
 This release runs on OpenBSD, FreeBSD, NetBSD, Linux, OS X and Solaris.
 

README.ja

@@ -0,0 +1,62 @@
+tmuxへようこそ!
+
+tmuxはターミナルマルチプレクサーです。複数のターミナルを一つのスクリーン内に作成し、操作することができます。
+バックグラウンドで処理を実行中に一度スクリーンから離れて後から復帰することも可能です。
+
+OpenBSD、FreeBSD、NetBSD、Linux、OS X、Solarisで実行できます。
+
+tmuxはlibevent 2.x.に依存します。 下記からダウンロードしてください。
+
+	http://libevent.org
+
+また、ncursesも必要です。こちらからどうぞ。
+
+	http://invisible-island.net/ncurses/
+
+tarballでのtmuxのビルドとインストール方法。
+
+	$ ./configure && make
+	$ sudo make install
+
+tmuxはutmp(5)をアップデートするためにutempterを使うことができます。もしインストール済みであればオプション「--enable-utempter」をつけて実行してください。
+
+リポジトリから最新バージョンを手に入れるためには下記を実行。
+
+	$ git clone https://github.com/tmux/tmux.git
+	$ cd tmux
+	$ sh autogen.sh
+	$ ./configure && make
+
+(ビルドのためにはlibevent、ncurses libraries、headersに加えて、C compiler、make、autoconf、automake、pkg-configが必要です。)
+
+詳しい情報はhttp://git-scm.comをご覧ください。修正はメール<tmux-users@googlegroups.com>宛、もしくはhttps://github.com/tmux/tmux/issuesにて受け付けています。
+
+tmuxのドキュメントについてはtmux.1マニュアルをご覧ください。こちらのコマンドで参照可能です。
+
+	$ nroff -mdoc tmux.1|less
+
+サンプル設定は本リポジトリのexample_tmux.confに
+また、bash-completionファイルは下記にあります。
+
+	https://github.com/imomaliev/tmux-bash-completion
+
+「-v」や「-vv」を指定することでデバッグモードでの起動が可能です。カレントディレクトリにサーバーやクライアントのログファイルが生成されます。
+
+議論やバグレポート用のメーリングリストにはこちらから参加可能です。
+
+	https://groups.google.com/forum/#!forum/tmux-users
+
+gitコミットについての連絡先
+
+	https://groups.google.com/forum/#!forum/tmux-git
+
+購読は<tmux-users+subscribe@googlegroups.com>までメールをお願いします。
+
+バグレポートや機能追加(特にコードへの貢献)は大歓迎です。こちらにご連絡ください。
+
+	tmux-users@googlegroups.com
+
+本ファイル、CHANGES、 FAQ、SYNCINGそしてTODOはISC licenseで保護されています。
+その他のファイルのライセンスや著作権については、ファイルの上部に明記されています。
+
+-- Nicholas Marriott <nicholas.marriott@gmail.com>

TODO

@@ -16,13 +16,11 @@
 	* way to set socket path from config file
 
 - format improvements:
-	* option to quote format (#{q:session_name})
 	* some way to pad # stuff with spaces
 	* formats to show if a window is linked into multiple sessions, into
 	  multiple attached sessions, and is the active window in multiple
 	  attached sessions?
 	* comparison operators like < and > (for #{version}?)
-	* %else statement in config file
 
 - improve monitor-*:
 	* straighten out rules for multiple clients
@@ -50,6 +48,11 @@
 	  dragging it should select by word. compare how xterm works. GitHub
 	  issue 682)
 	* key to search for word under cursor (GitHub issue 1240)
+	* when entering copy mode, should copy grid so that input does not
+	  need to be suspended
+	* allow the prefix for automatic buffers to be specified as part of the
+	  key binding to allow session buffers or similar (GitHub issue 1501)
+	* copy-pipe should be synchronous (GitHub issue 1517)
 
 - layout stuff
 	* way to tag a layout as a number/name
@@ -61,7 +64,6 @@
 	  not attached to a cell at all. this could be the time to introduce
 	  panelink to replace layout_cell
 	* way to set hints/limits about pane size for resizing
-	* panning over window (window larger than visible)
 	* a mode where one application can cross two panes (ie x|y, width =
 	  COLUMNS/2 but height = ROWS * 2)
 	* separate active panes for different clients
@@ -109,11 +111,15 @@
 	* marks in history, automatically add (move?) one when pane is changed
 	* this doesn't work, need pane reference count probably:
 	  bind -n DoubleClick3Status confirm-before -p "kill-window #I? (y/n)" kill-window
-	* respawn -c flag same as neww etc
 	* marker lines in history (GitHub issue 1042)
 	* tree mode stuff: make command prompt (:) common code so all modes get it,
 	  predefined filters, tag-all key, ...
 	* drag panes and windows around to move/swap them in choose mode
+	* flag to specify environment to new-window, split-window,
+          new-session (issue 1498)
+	* multiple column panes (issue 1503)
+	* support for ZERO WIDTH JOINER U+200D
+	* individual pane synchronize-panes (with pane options?); issue 1638
 
 - hooks
 	* more hooks for various things
@@ -131,3 +137,25 @@
 	* finish hooks for notifys
 	* for session_closed, if no sessions at all, perhaps fake up a
 	  temporary one
+
+- pan
+	* tty_window_offset should try to keep as much off active pane
+	  visible as possible
+	* rather than centering cursor it might be better if only
+	  moved offset when it gets close to an edge?
+
+----
+
+TODO soonish maybe:
+
+- Store hooks as options, issue 1619.
+- Support buffer prefixes, issue 1501.
+- copy-pipe should be synchronous, issue 1517.
+- -E flag to pass environment to new-*, issue 1498.
+- Copy mode searching is slow when there is a big history, issue 1545.
+- Grid "block" stuff, issue 1269. Can be used potentially for compression of
+  history (bit silly really though), reflow performance (can reflow blocks on
+  demand). It would possibly be good if history-limit could be global and
+  collected LRU.
+- Command aliases should be able to override builtin commands in order to add
+  default flags (some mechanism needed to avoid recursion). GitHub issue 1630.

attributes.c

@@ -25,13 +25,13 @@
 const char *
 attributes_tostring(int attr)
 {
-	static char	buf[128];
+	static char	buf[512];
 	size_t		len;
 
 	if (attr == 0)
 		return ("none");
 
-	len = xsnprintf(buf, sizeof buf, "%s%s%s%s%s%s%s%s",
+	len = xsnprintf(buf, sizeof buf, "%s%s%s%s%s%s%s%s%s%s%s%s",
 	    (attr & GRID_ATTR_BRIGHT) ? "bright," : "",
 	    (attr & GRID_ATTR_DIM) ? "dim," : "",
 	    (attr & GRID_ATTR_UNDERSCORE) ? "underscore," : "",
@@ -39,7 +39,11 @@ attributes_tostring(int attr)
 	    (attr & GRID_ATTR_REVERSE) ? "reverse," : "",
 	    (attr & GRID_ATTR_HIDDEN) ? "hidden," : "",
 	    (attr & GRID_ATTR_ITALICS) ? "italics," : "",
-	    (attr & GRID_ATTR_STRIKETHROUGH) ? "strikethrough," : "");
+	    (attr & GRID_ATTR_STRIKETHROUGH) ? "strikethrough," : "",
+	    (attr & GRID_ATTR_UNDERSCORE_2) ? "double-underscore," : "",
+	    (attr & GRID_ATTR_UNDERSCORE_3) ? "curly-underscore," : "",
+	    (attr & GRID_ATTR_UNDERSCORE_4) ? "dotted-underscore," : "",
+	    (attr & GRID_ATTR_UNDERSCORE_5) ? "dashed-underscore," : "");
 	if (len > 0)
 		buf[len - 1] = '\0';
 
@@ -52,6 +56,25 @@ attributes_fromstring(const char *str)
 	const char	delimiters[] = " ,|";
 	int		attr;
 	size_t		end;
+	u_int		i;
+	struct {
+		const char*	name;
+		int		attr;
+	} table[] = {
+		{ "bright", GRID_ATTR_BRIGHT },
+		{ "bold", GRID_ATTR_BRIGHT },
+		{ "dim", GRID_ATTR_DIM },
+		{ "underscore", GRID_ATTR_UNDERSCORE },
+		{ "blink", GRID_ATTR_BLINK },
+		{ "reverse", GRID_ATTR_REVERSE },
+		{ "hidden", GRID_ATTR_HIDDEN },
+		{ "italics", GRID_ATTR_ITALICS },
+		{ "strikethrough", GRID_ATTR_STRIKETHROUGH },
+		{ "double-underscore", GRID_ATTR_UNDERSCORE_2 },
+		{ "curly-underscore", GRID_ATTR_UNDERSCORE_3 },
+		{ "dotted-underscore", GRID_ATTR_UNDERSCORE_4 },
+		{ "dashed-underscore", GRID_ATTR_UNDERSCORE_5 }
+	};
 
 	if (*str == '\0' || strcspn(str, delimiters) == 0)
 		return (-1);
@@ -64,24 +87,15 @@ attributes_fromstring(const char *str)
 	attr = 0;
 	do {
 		end = strcspn(str, delimiters);
-		if ((end == 6 && strncasecmp(str, "bright", end) == 0) ||
+		for (i = 0; i < nitems(table); i++) {
-		    (end == 4 && strncasecmp(str, "bold", end) == 0))
+			if (end != strlen(table[i].name))
-			attr |= GRID_ATTR_BRIGHT;
+				continue;
-		else if (end == 3 && strncasecmp(str, "dim", end) == 0)
+			if (strncasecmp(str, table[i].name, end) == 0) {
-			attr |= GRID_ATTR_DIM;
+				attr |= table[i].attr;
-		else if (end == 10 && strncasecmp(str, "underscore", end) == 0)
+				break;
-			attr |= GRID_ATTR_UNDERSCORE;
+			}
-		else if (end == 5 && strncasecmp(str, "blink", end) == 0)
+		}
-			attr |= GRID_ATTR_BLINK;
+		if (i == nitems(table))
-		else if (end == 7 && strncasecmp(str, "reverse", end) == 0)
-			attr |= GRID_ATTR_REVERSE;
-		else if (end == 6 && strncasecmp(str, "hidden", end) == 0)
-			attr |= GRID_ATTR_HIDDEN;
-		else if (end == 7 && strncasecmp(str, "italics", end) == 0)
-			attr |= GRID_ATTR_ITALICS;
-		else if (end == 13 && strncasecmp(str, "strikethrough", end) == 0)
-			attr |= GRID_ATTR_STRIKETHROUGH;
-		else
 			return (-1);
 		str += end + strspn(str + end, delimiters);
 	} while (*str != '\0');

cfg.c

@@ -37,6 +37,7 @@ struct cfg_cond {
 };
 TAILQ_HEAD(cfg_conds, cfg_cond);
 
+struct client		 *cfg_client;
 static char		 *cfg_file;
 int			  cfg_finished;
 static char		**cfg_causes;
@@ -94,7 +95,7 @@ start_cfg(void)
 	 * command queue is currently empty and our callback will be at the
 	 * front - we need to get in before MSG_COMMAND.
 	 */
-	c = TAILQ_FIRST(&clients);
+	cfg_client = c = TAILQ_FIRST(&clients);
 	if (c != NULL) {
 		cfg_item = cmdq_get_callback(cfg_client_done, NULL);
 		cmdq_append(c, cfg_item);
@@ -339,15 +340,17 @@ cfg_print_causes(struct cmdq_item *item)
 void
 cfg_show_causes(struct session *s)
 {
-	struct window_pane	*wp;
+	struct window_pane		*wp;
-	u_int			 i;
+	struct window_mode_entry	*wme;
+	u_int				 i;
 
 	if (s == NULL || cfg_ncauses == 0)
 		return;
 	wp = s->curw->window->active;
 
-	window_pane_set_mode(wp, &window_copy_mode, NULL, NULL);
+	wme = TAILQ_FIRST(&wp->modes);
-	window_copy_init_for_output(wp);
+	if (wme == NULL || wme->mode != &window_view_mode)
+		window_pane_set_mode(wp, &window_view_mode, NULL, NULL);
 	for (i = 0; i < cfg_ncauses; i++) {
 		window_copy_add(wp, "%s", cfg_causes[i]);
 		free(cfg_causes[i]);

client.c

@@ -17,11 +17,10 @@
  */
 
 #include <sys/types.h>
-#include <sys/file.h>
 #include <sys/socket.h>
-#include <sys/stat.h>
 #include <sys/un.h>
 #include <sys/wait.h>
+#include <sys/file.h>
 
 #include <errno.h>
 #include <event.h>
@@ -223,7 +222,7 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
 	const char		*ttynam, *cwd;
 	pid_t			 ppid;
 	enum msgtype		 msg;
-	char			*cause, path[PATH_MAX];
+	char			*cause;
 	struct termios		 tio, saved_tio;
 	size_t			 size;
 
@@ -278,9 +277,7 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
 	client_peer = proc_add_peer(client_proc, fd, client_dispatch, NULL);
 
 	/* Save these before pledge(). */
-	if ((cwd = getenv("PWD")) == NULL &&
+	if ((cwd = find_cwd()) == NULL && (cwd = find_home()) == NULL)
-	    (cwd = getcwd(path, sizeof path)) == NULL &&
-	    (cwd = find_home()) == NULL)
 		cwd = "/";
 	if ((ttynam = ttyname(STDIN_FILENO)) == NULL)
 		ttynam = "";

cmd-attach-session.c

@@ -100,6 +100,7 @@ cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
 		s->cwd = format_single(item, cflag, c, s, wl, wp);
 	}
 
+	c->last_session = c->session;
 	if (c->session != NULL) {
 		if (dflag) {
 			TAILQ_FOREACH(c_loop, &clients, entry) {
@@ -114,6 +115,7 @@ cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
 		c->session = s;
 		if (~item->shared->flags & CMDQ_SHARED_REPEAT)
 			server_client_set_key_table(c, NULL);
+		tty_update_client_offset(c);
 		status_timer_start(c);
 		notify_client("client-session-changed", c);
 		session_update_activity(s, NULL);
@@ -141,6 +143,7 @@ cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
 
 		c->session = s;
 		server_client_set_key_table(c, NULL);
+		tty_update_client_offset(c);
 		status_timer_start(c);
 		notify_client("client-session-changed", c);
 		session_update_activity(s, NULL);

cmd-break-pane.c

@@ -76,7 +76,7 @@ cmd_break_pane_exec(struct cmd *self, struct cmdq_item *item)
 	window_lost_pane(w, wp);
 	layout_close_pane(wp);
 
-	w = wp->window = window_create(dst_s->sx, dst_s->sy);
+	w = wp->window = window_create(w->sx, w->sy);
 	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
 	w->active = wp;
 

cmd-capture-pane.c

@@ -41,7 +41,7 @@ const struct cmd_entry cmd_capture_pane_entry = {
 
 	.args = { "ab:CeE:JpPqS:t:", 0, 0 },
 	.usage = "[-aCeJpPq] " CMD_BUFFER_USAGE " [-E end-line] "
-		 "[-S start-line]" CMD_TARGET_PANE_USAGE,
+		 "[-S start-line] " CMD_TARGET_PANE_USAGE,
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -199,8 +199,7 @@ cmd_capture_pane_exec(struct cmd *self, struct cmdq_item *item)
 	size_t			 len;
 
 	if (self->entry == &cmd_clear_history_entry) {
-		if (wp->mode == &window_copy_mode)
+		window_pane_reset_mode_all(wp);
-			window_pane_reset_mode(wp);
 		grid_clear_history(wp->base.grid);
 		return (CMD_RETURN_NORMAL);
 	}

cmd-choose-tree.c

@@ -32,7 +32,7 @@ const struct cmd_entry cmd_choose_tree_entry = {
 
 	.args = { "F:Gf:NO:st:wZ", 0, 1 },
 	.usage = "[-GNsw] [-F format] [-f filter] [-O sort-order] "
-	         CMD_TARGET_PANE_USAGE,
+	         CMD_TARGET_PANE_USAGE " [template]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -46,7 +46,7 @@ const struct cmd_entry cmd_choose_client_entry = {
 
 	.args = { "F:f:NO:t:Z", 0, 1 },
 	.usage = "[-N] [-F format] [-f filter] [-O sort-order] "
-	         CMD_TARGET_PANE_USAGE,
+	         CMD_TARGET_PANE_USAGE " [template]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -60,7 +60,7 @@ const struct cmd_entry cmd_choose_buffer_entry = {
 
 	.args = { "F:f:NO:t:Z", 0, 1 },
 	.usage = "[-N] [-F format] [-f filter] [-O sort-order] "
-	         CMD_TARGET_PANE_USAGE,
+	         CMD_TARGET_PANE_USAGE " [template]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 

cmd-copy-mode.c

@@ -60,7 +60,6 @@ cmd_copy_mode_exec(struct cmd *self, struct cmdq_item *item)
 	struct client		*c = item->client;
 	struct session		*s;
 	struct window_pane	*wp = item->target.wp;
-	int			 flag;
 
 	if (args_has(args, 'M')) {
 		if ((wp = cmd_mouse_pane(&shared->mouse, &s, NULL)) == NULL)
@@ -74,18 +73,11 @@ cmd_copy_mode_exec(struct cmd *self, struct cmdq_item *item)
 		return (CMD_RETURN_NORMAL);
 	}
 
-	if (wp->mode != &window_copy_mode) {
+	if (window_pane_set_mode(wp, &window_copy_mode, NULL, args) != 0)
-		flag = window_pane_set_mode(wp, &window_copy_mode, NULL, NULL);
+		return (CMD_RETURN_NORMAL);
-		if (flag != 0)
+	if (args_has(args, 'M'))
-			return (CMD_RETURN_NORMAL);
-		window_copy_init_from_pane(wp, args_has(self->args, 'e'));
-	}
-	if (args_has(args, 'M')) {
-		if (wp->mode != NULL && wp->mode != &window_copy_mode)
-			return (CMD_RETURN_NORMAL);
 		window_copy_start_drag(c, &shared->mouse);
-	}
+	if (args_has(self->args, 'u'))
-	if (wp->mode == &window_copy_mode && args_has(self->args, 'u'))
 		window_copy_pageup(wp, 0);
 
 	return (CMD_RETURN_NORMAL);

cmd-display-message.c

@@ -39,8 +39,8 @@ const struct cmd_entry cmd_display_message_entry = {
 	.name = "display-message",
 	.alias = "display",
 
-	.args = { "c:pt:F:", 0, 1 },
+	.args = { "ac:pt:F:v", 0, 1 },
-	.usage = "[-p] [-c target-client] [-F format] "
+	.usage = "[-apv] [-c target-client] [-F format] "
 		 CMD_TARGET_PANE_USAGE " [message]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -49,23 +49,31 @@ const struct cmd_entry cmd_display_message_entry = {
 	.exec = cmd_display_message_exec
 };
 
+static void
+cmd_display_message_each(const char *key, const char *value, void *arg)
+{
+	struct cmdq_item	*item = arg;
+
+	cmdq_print(item, "%s=%s", key, value);
+}
+
 static enum cmd_retval
 cmd_display_message_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct client		*c;
+	struct client		*c, *target_c;
 	struct session		*s = item->target.s;
 	struct winlink		*wl = item->target.wl;
 	struct window_pane	*wp = item->target.wp;
 	const char		*template;
 	char			*msg;
 	struct format_tree	*ft;
+	int			 flags;
 
 	if (args_has(args, 'F') && args->argc != 0) {
 		cmdq_error(item, "only one of -F or argument must be given");
 		return (CMD_RETURN_ERROR);
 	}
-	c = cmd_find_client(item, args_get(args, 'c'), 1);
 
 	template = args_get(args, 'F');
 	if (args->argc != 0)
@@ -73,10 +81,31 @@ cmd_display_message_exec(struct cmd *self, struct cmdq_item *item)
 	if (template == NULL)
 		template = DISPLAY_MESSAGE_TEMPLATE;
 
-	ft = format_create(item->client, item, FORMAT_NONE, 0);
+	/*
-	format_defaults(ft, c, s, wl, wp);
+	 * -c is intended to be the client where the message should be
+	 * displayed if -p is not given. But it makes sense to use it for the
+	 * formats too, assuming it matches the session. If it doesn't, use the
+	 * best client for the session.
+	 */
+	c = cmd_find_client(item, args_get(args, 'c'), 1);
+	if (c != NULL && c->session == s)
+		target_c = c;
+	else
+		target_c = cmd_find_best_client(s);
+	if (args_has(self->args, 'v'))
+		flags = FORMAT_VERBOSE;
+	else
+		flags = 0;
+	ft = format_create(item->client, item, FORMAT_NONE, flags);
+	format_defaults(ft, target_c, s, wl, wp);
 
-	msg = format_expand_time(ft, template, time(NULL));
+	if (args_has(args, 'a')) {
+		if (item != NULL)
+			format_each(ft, cmd_display_message_each, item);
+		return (CMD_RETURN_NORMAL);
+	}
+
+	msg = format_expand_time(ft, template);
 	if (args_has(self->args, 'p'))
 		cmdq_print(item, "%s", msg);
 	else if (c != NULL)

cmd-display-panes.c

@@ -37,8 +37,8 @@ const struct cmd_entry cmd_display_panes_entry = {
 	.name = "display-panes",
 	.alias = "displayp",
 
-	.args = { "d:t:", 0, 1 },
+	.args = { "bd:t:", 0, 1 },
-	.usage = "[-d duration] " CMD_TARGET_CLIENT_USAGE,
+	.usage = "[-b] [-d duration] " CMD_TARGET_CLIENT_USAGE " [template]",
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_display_panes_exec
@@ -55,6 +55,7 @@ cmd_display_panes_exec(struct cmd *self, struct cmdq_item *item)
 
 	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
 		return (CMD_RETURN_ERROR);
+	s = c->session;
 
 	if (c->identify_callback != NULL)
 		return (CMD_RETURN_NORMAL);
@@ -64,7 +65,10 @@ cmd_display_panes_exec(struct cmd *self, struct cmdq_item *item)
 		c->identify_callback_data = xstrdup(args->argv[0]);
 	else
 		c->identify_callback_data = xstrdup("select-pane -t '%%'");
-	s = c->session;
+	if (args_has(args, 'b'))
+		c->identify_callback_item = NULL;
+	else
+		c->identify_callback_item = item;
 
 	if (args_has(args, 'd')) {
 		delay = args_strtonum(args, 'd', 0, UINT_MAX, &cause);
@@ -77,7 +81,9 @@ cmd_display_panes_exec(struct cmd *self, struct cmdq_item *item)
 		delay = options_get_number(s->options, "display-panes-time");
 	server_client_set_identify(c, delay);
 
-	return (CMD_RETURN_NORMAL);
+	if (args_has(args, 'b'))
+		return (CMD_RETURN_NORMAL);
+	return (CMD_RETURN_WAIT);
 }
 
 static enum cmd_retval
@@ -96,34 +102,42 @@ cmd_display_panes_callback(struct client *c, struct window_pane *wp)
 {
 	struct cmd_list		*cmdlist;
 	struct cmdq_item	*new_item;
-	char			*template, *cmd, *expanded, *cause;
+	char			*cmd, *expanded, *cause;
 
-	template = c->identify_callback_data;
 	if (wp == NULL)
 		goto out;
+
 	xasprintf(&expanded, "%%%u", wp->id);
-	cmd = cmd_template_replace(template, expanded, 1);
+	cmd = cmd_template_replace(c->identify_callback_data, expanded, 1);
 
 	cmdlist = cmd_string_parse(cmd, NULL, 0, &cause);
-	if (cmdlist == NULL) {
+	if (cmdlist == NULL && cause != NULL)
-		if (cause != NULL) {
+		new_item = cmdq_get_callback(cmd_display_panes_error, cause);
-			new_item = cmdq_get_callback(cmd_display_panes_error,
+	else if (cmdlist == NULL)
-			    cause);
+		new_item = NULL;
-		} else
+	else {
-			new_item = NULL;
-	} else {
 		new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
 		cmd_list_free(cmdlist);
 	}
 
-	if (new_item != NULL)
+	if (new_item != NULL) {
-		cmdq_append(c, new_item);
+		if (c->identify_callback_item != NULL)
+			cmdq_insert_after(c->identify_callback_item, new_item);
+		else
+			cmdq_append(c, new_item);
+	}
 
 	free(cmd);
 	free(expanded);
 
 out:
+	if (c->identify_callback_item != NULL) {
+		c->identify_callback_item->flags &= ~CMDQ_WAITING;
+		c->identify_callback_item = NULL;
+	}
+
 	free(c->identify_callback_data);
 	c->identify_callback_data = NULL;
+
 	c->identify_callback = NULL;
 }

cmd-find-window.c

@@ -32,8 +32,8 @@ const struct cmd_entry cmd_find_window_entry = {
 	.name = "find-window",
 	.alias = "findw",
 
-	.args = { "CNt:T", 1, 1 },
+	.args = { "CNt:TZ", 1, 1 },
-	.usage = "[-CNT] " CMD_TARGET_PANE_USAGE " match-string",
+	.usage = "[-CNTZ] " CMD_TARGET_PANE_USAGE " match-string",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -83,6 +83,8 @@ cmd_find_window_exec(struct cmd *self, struct cmdq_item *item)
 		xasprintf(&filter, "#{m:*%s*,#{pane_title}}", s);
 
 	new_args = args_parse("", 1, &argv);
+	if (args_has(args, 'Z'))
+		args_set(new_args, 'Z', NULL);
 	args_set(new_args, 'f', filter);
 
 	window_pane_set_mode(wp, &window_tree_mode, &item->target, new_args);

cmd-find.c

@@ -34,6 +34,7 @@ static int	cmd_find_best_winlink_with_window(struct cmd_find_state *);
 
 static const char *cmd_find_map_table(const char *[][2], const char *);
 
+static void	cmd_find_log_state(const char *, struct cmd_find_state *);
 static int	cmd_find_get_session(struct cmd_find_state *, const char *);
 static int	cmd_find_get_window(struct cmd_find_state *, const char *, int);
 static int	cmd_find_get_window_with_session(struct cmd_find_state *,
@@ -82,6 +83,7 @@ cmd_find_try_TMUX(struct client *c)
 	char			 tmp[256];
 	long long		 pid;
 	u_int			 session;
+	struct session		*s;
 
 	envent = environ_find(c->environ, "TMUX");
 	if (envent == NULL)
@@ -91,8 +93,13 @@ cmd_find_try_TMUX(struct client *c)
 		return (NULL);
 	if (pid != getpid())
 		return (NULL);
-	log_debug("client %p TMUX %s (session @%u)", c, envent->value, session);
+	log_debug("%s: client %p TMUX %s (session $%u)", __func__, c,
-	return (session_find_by_id(session));
+	    envent->value, session);
+
+	s = session_find_by_id(session);
+	if (s != NULL)
+		log_debug("%s: session $%u still exists", __func__, s->id);
+	return (s);
 }
 
 /* Find pane containing client if any. */
@@ -105,9 +112,11 @@ cmd_find_inside_pane(struct client *c)
 		return (NULL);
 
 	RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
-		if (strcmp(wp->tty, c->ttyname) == 0)
+		if (wp->fd != -1 && strcmp(wp->tty, c->ttyname) == 0)
 			break;
 	}
+	if (wp != NULL)
+		log_debug("%s: got pane %%%u (%s)", __func__, wp->id, wp->tty);
 	return (wp);
 }
 
@@ -121,12 +130,12 @@ cmd_find_client_better(struct client *c, struct client *than)
 }
 
 /* Find best client for session. */
-static struct client *
+struct client *
 cmd_find_best_client(struct session *s)
 {
 	struct client	*c_loop, *c;
 
-	if (s->flags & SESSION_UNATTACHED)
+	if (s->attached == 0)
 		s = NULL;
 
 	c = NULL;
@@ -150,10 +159,10 @@ cmd_find_session_better(struct session *s, struct session *than, int flags)
 	if (than == NULL)
 		return (1);
 	if (flags & CMD_FIND_PREFER_UNATTACHED) {
-		attached = (~than->flags & SESSION_UNATTACHED);
+		attached = (than->attached != 0);
-		if (attached && (s->flags & SESSION_UNATTACHED))
+		if (attached && s->attached == 0)
 			return (1);
-		else if (!attached && (~s->flags & SESSION_UNATTACHED))
+		else if (!attached && s->attached != 0)
 			return (0);
 	}
 	return (timercmp(&s->activity_time, &than->activity_time, >));
@@ -166,6 +175,8 @@ cmd_find_best_session(struct session **slist, u_int ssize, int flags)
 	struct session	 *s_loop, *s;
 	u_int		  i;
 
+	log_debug("%s: %u sessions to try", __func__, ssize);
+
 	s = NULL;
 	if (slist != NULL) {
 		for (i = 0; i < ssize; i++) {
@@ -189,6 +200,8 @@ cmd_find_best_session_with_window(struct cmd_find_state *fs)
 	u_int		  ssize;
 	struct session	 *s;
 
+	log_debug("%s: window is @%u", __func__, fs->w->id);
+
 	ssize = 0;
 	RB_FOREACH(s, sessions, &sessions) {
 		if (!session_has(s, fs->w))
@@ -210,7 +223,7 @@ fail:
 }
 
 /*
- * Find the best winlink for a window (the current if it contains the pane,
+ * Find the best winlink for a window (the current if it contains the window,
  * otherwise the first).
  */
 static int
@@ -218,6 +231,8 @@ cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
 {
 	struct winlink	 *wl, *wl_loop;
 
+	log_debug("%s: window is @%u", __func__, fs->w->id);
+
 	wl = NULL;
 	if (fs->s->curw != NULL && fs->s->curw->window == fs->w)
 		wl = fs->s->curw;
@@ -436,15 +451,16 @@ cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
 	if (window[0] != '+' && window[0] != '-') {
 		idx = strtonum(window, 0, INT_MAX, &errstr);
 		if (errstr == NULL) {
-			if (fs->flags & CMD_FIND_WINDOW_INDEX) {
-				fs->idx = idx;
-				return (0);
-			}
 			fs->wl = winlink_find_by_index(&fs->s->windows, idx);
 			if (fs->wl != NULL) {
+				fs->idx = fs->wl->idx;
 				fs->w = fs->wl->window;
 				return (0);
 			}
+			if (fs->flags & CMD_FIND_WINDOW_INDEX) {
+				fs->idx = idx;
+				return (0);
+			}
 		}
 	}
 
@@ -701,11 +717,11 @@ cmd_find_copy_state(struct cmd_find_state *dst, struct cmd_find_state *src)
 }
 
 /* Log the result. */
-void
+static void
 cmd_find_log_state(const char *prefix, struct cmd_find_state *fs)
 {
 	if (fs->s != NULL)
-		log_debug("%s: s=$%u", prefix, fs->s->id);
+		log_debug("%s: s=$%u %s", prefix, fs->s->id, fs->s->name);
 	else
 		log_debug("%s: s=none", prefix);
 	if (fs->wl != NULL) {
@@ -894,6 +910,9 @@ cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
 				break;
 		}
 		if (wl != NULL) {
+			log_debug("%s: session $%u has pane %%%u", __func__,
+			    s->id, wp->id);
+
 			fs->s = s;
 			fs->wl = s->curw; /* use current session */
 			fs->w = fs->wl->window;
@@ -901,6 +920,9 @@ cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
 
 			cmd_find_log_state(__func__, fs);
 			return (0);
+		} else {
+			log_debug("%s: session $%u does not have pane %%%u",
+			    __func__, s->id, wp->id);
 		}
 	}
 
@@ -949,7 +971,7 @@ cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
 {
 	struct mouse_event	*m;
 	struct cmd_find_state	 current;
-	char			*colon, *period, *copy = NULL;
+	char			*colon, *period, *copy = NULL, tmp[256];
 	const char		*session, *window, *pane, *s;
 	int			 window_only = 0, pane_only = 0;
 
@@ -966,11 +988,25 @@ cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
 		s = "session";
 	else
 		s = "unknown";
-	if (target == NULL)
+	*tmp = '\0';
-		log_debug("%s: target none, type %s", __func__, s);
+	if (flags & CMD_FIND_PREFER_UNATTACHED)
-	else
+		strlcat(tmp, "PREFER_UNATTACHED,", sizeof tmp);
-		log_debug("%s: target %s, type %s", __func__, target, s);
+	if (flags & CMD_FIND_QUIET)
-	log_debug("%s: item %p, flags %#x", __func__, item, flags);
+		strlcat(tmp, "QUIET,", sizeof tmp);
+	if (flags & CMD_FIND_WINDOW_INDEX)
+		strlcat(tmp, "WINDOW_INDEX,", sizeof tmp);
+	if (flags & CMD_FIND_DEFAULT_MARKED)
+		strlcat(tmp, "DEFAULT_MARKED,", sizeof tmp);
+	if (flags & CMD_FIND_EXACT_SESSION)
+		strlcat(tmp, "EXACT_SESSION,", sizeof tmp);
+	if (flags & CMD_FIND_EXACT_WINDOW)
+		strlcat(tmp, "EXACT_WINDOW,", sizeof tmp);
+	if (flags & CMD_FIND_CANFAIL)
+		strlcat(tmp, "CANFAIL,", sizeof tmp);
+	if (*tmp != '\0')
+		tmp[strlen(tmp) - 1] = '\0';
+	log_debug("%s: target %s, type %s, item %p, flags %s", __func__,
+	    target == NULL ? "none" : target, s, item, tmp);
 
 	/* Clear new state. */
 	cmd_find_clear_state(fs, flags);
@@ -1110,9 +1146,16 @@ cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
 	if (pane != NULL)
 		pane = cmd_find_map_table(cmd_find_pane_table, pane);
 
-	log_debug("%s: target %s (flags %#x): session=%s, window=%s, pane=%s",
+	if (session != NULL || window != NULL || pane != NULL) {
-	    __func__, target, flags, session == NULL ? "none" : session,
+		log_debug("%s: target %s is %s%s%s%s%s%s",
-	    window == NULL ? "none" : window, pane == NULL ? "none" : pane);
+		    __func__, target,
+		    session == NULL ? "" : "session ",
+		    session == NULL ? "" : session,
+		    window == NULL ? "" : "window ",
+		    window == NULL ? "" : window,
+		    pane == NULL ? "" : "pane ",
+		    pane == NULL ? "" : pane);
+	}
 
 	/* No pane is allowed if want an index. */
 	if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
@@ -1141,7 +1184,8 @@ cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
 			/* This will fill in winlink and window. */
 			if (cmd_find_get_window_with_session(fs, window) != 0)
 				goto no_window;
-			fs->wp = fs->wl->window->active;
+			if (fs->wl != NULL) /* can be NULL if index only */
+				fs->wp = fs->wl->window->active;
 			goto found;
 		}
 
@@ -1181,7 +1225,8 @@ cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
 		/* This will fill in session, winlink and window. */
 		if (cmd_find_get_window(fs, window, window_only) != 0)
 			goto no_window;
-		fs->wp = fs->wl->window->active;
+		if (fs->wl != NULL) /* can be NULL if index only */
+			fs->wp = fs->wl->window->active;
 		goto found;
 	}
 
@@ -1218,17 +1263,17 @@ found:
 
 no_session:
 	if (~flags & CMD_FIND_QUIET)
-		cmdq_error(item, "can't find session %s", session);
+		cmdq_error(item, "can't find session: %s", session);
 	goto error;
 
 no_window:
 	if (~flags & CMD_FIND_QUIET)
-		cmdq_error(item, "can't find window %s", window);
+		cmdq_error(item, "can't find window: %s", window);
 	goto error;
 
 no_pane:
 	if (~flags & CMD_FIND_QUIET)
-		cmdq_error(item, "can't find pane %s", pane);
+		cmdq_error(item, "can't find pane: %s", pane);
 	goto error;
 }
 
@@ -1298,7 +1343,7 @@ cmd_find_client(struct cmdq_item *item, const char *target, int quiet)
 
 	/* If no client found, report an error. */
 	if (c == NULL && !quiet)
-		cmdq_error(item, "can't find client %s", copy);
+		cmdq_error(item, "can't find client: %s", copy);
 
 	free(copy);
 	log_debug("%s: target %s, return %p", __func__, target, c);

cmd-if-shell.c

@@ -73,14 +73,6 @@ cmd_if_shell_exec(struct cmd *self, struct cmdq_item *item)
 	struct session			*s = item->target.s;
 	struct winlink			*wl = item->target.wl;
 	struct window_pane		*wp = item->target.wp;
-	const char			*cwd;
-
-	if (item->client != NULL && item->client->session == NULL)
-		cwd = item->client->cwd;
-	else if (s != NULL)
-		cwd = s->cwd;
-	else
-		cwd = NULL;
 
 	shellcmd = format_single(item, args->argv[0], c, s, wl, wp);
 	if (args_has(args, 'F')) {
@@ -128,8 +120,13 @@ cmd_if_shell_exec(struct cmd *self, struct cmdq_item *item)
 		cdata->item = NULL;
 	memcpy(&cdata->mouse, &shared->mouse, sizeof cdata->mouse);
 
-	job_run(shellcmd, s, cwd, NULL, cmd_if_shell_callback,
+	if (job_run(shellcmd, s, server_client_get_cwd(item->client, s), NULL,
-	    cmd_if_shell_free, cdata, 0);
+	    cmd_if_shell_callback, cmd_if_shell_free, cdata, 0) == NULL) {
+		cmdq_error(item, "failed to run command: %s", shellcmd);
+		free(shellcmd);
+		free(cdata);
+		return (CMD_RETURN_ERROR);
+	}
 	free(shellcmd);
 
 	if (args_has(args, 'b'))
@@ -140,14 +137,16 @@ cmd_if_shell_exec(struct cmd *self, struct cmdq_item *item)
 static void
 cmd_if_shell_callback(struct job *job)
 {
-	struct cmd_if_shell_data	*cdata = job->data;
+	struct cmd_if_shell_data	*cdata = job_get_data(job);
 	struct client			*c = cdata->client;
 	struct cmd_list			*cmdlist;
 	struct cmdq_item		*new_item;
 	char				*cause, *cmd, *file = cdata->file;
 	u_int				 line = cdata->line;
+	int				 status;
 
-	if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0)
+	status = job_get_status(job);
+	if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
 		cmd = cdata->cmd_else;
 	else
 		cmd = cdata->cmd_if;

cmd-kill-pane.c

@@ -47,9 +47,8 @@ cmd_kill_pane_exec(struct cmd *self, struct cmdq_item *item)
 	struct winlink		*wl = item->target.wl;
 	struct window_pane	*loopwp, *tmpwp, *wp = item->target.wp;
 
-	server_unzoom_window(wl->window);
-
 	if (args_has(self->args, 'a')) {
+		server_unzoom_window(wl->window);
 		TAILQ_FOREACH_SAFE(loopwp, &wl->window->panes, entry, tmpwp) {
 			if (loopwp == wp)
 				continue;
@@ -60,13 +59,6 @@ cmd_kill_pane_exec(struct cmd *self, struct cmdq_item *item)
 		return (CMD_RETURN_NORMAL);
 	}
 
-	if (window_count_panes(wl->window) == 1) {
+	server_kill_pane(wp);
-		server_kill_window(wl->window);
-		recalculate_sizes();
-	} else {
-		layout_close_pane(wp);
-		window_remove_pane(wl->window, wp);
-		server_redraw_window(wl->window);
-	}
 	return (CMD_RETURN_NORMAL);
 }

cmd-list-keys.c

@@ -75,10 +75,14 @@ cmd_list_keys_exec(struct cmd *self, struct cmdq_item *item)
 
 	repeat = 0;
 	tablewidth = keywidth = 0;
-	RB_FOREACH(table, key_tables, &key_tables) {
+	table = key_bindings_first_table ();
-		if (tablename != NULL && strcmp(table->name, tablename) != 0)
+	while (table != NULL) {
+		if (tablename != NULL && strcmp(table->name, tablename) != 0) {
+			table = key_bindings_next_table(table);
 			continue;
-		RB_FOREACH(bd, key_bindings, &table->key_bindings) {
+		}
+		bd = key_bindings_first(table);
+		while (bd != NULL) {
 			key = key_string_lookup_key(bd->key);
 
 			if (bd->flags & KEY_BINDING_REPEAT)
@@ -90,13 +94,20 @@ cmd_list_keys_exec(struct cmd *self, struct cmdq_item *item)
 			width = utf8_cstrwidth(key);
 			if (width > keywidth)
 				keywidth = width;
+
+			bd = key_bindings_next(table, bd);
 		}
+		table = key_bindings_next_table(table);
 	}
 
-	RB_FOREACH(table, key_tables, &key_tables) {
+	table = key_bindings_first_table ();
-		if (tablename != NULL && strcmp(table->name, tablename) != 0)
+	while (table != NULL) {
+		if (tablename != NULL && strcmp(table->name, tablename) != 0) {
+			table = key_bindings_next_table(table);
 			continue;
-		RB_FOREACH(bd, key_bindings, &table->key_bindings) {
+		}
+		bd = key_bindings_first(table);
+		while (bd != NULL) {
 			key = key_string_lookup_key(bd->key);
 
 			if (!repeat)
@@ -122,7 +133,9 @@ cmd_list_keys_exec(struct cmd *self, struct cmdq_item *item)
 			free(cp);
 
 			cmdq_print(item, "bind-key %s", tmp);
+			bd = key_bindings_next(table, bd);
 		}
+		table = key_bindings_next_table(table);
 	}
 
 	return (CMD_RETURN_NORMAL);

cmd-list-sessions.c

@@ -30,8 +30,7 @@
 
 #define LIST_SESSIONS_TEMPLATE				\
 	"#{session_name}: #{session_windows} windows "	\
-	"(created #{t:session_created}) "		\
+	"(created #{t:session_created})"		\
-	"[#{session_width}x#{session_height}]"		\
 	"#{?session_grouped, (group ,}"			\
 	"#{session_group}#{?session_grouped,),}"	\
 	"#{?session_attached, (attached),}"

cmd-load-buffer.c

@@ -56,11 +56,14 @@ cmd_load_buffer_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args			*args = self->args;
 	struct cmd_load_buffer_data	*cdata;
-	struct client			*c = item->client;
+	struct client			*c = cmd_find_client(item, NULL, 1);
+	struct session			*s = item->target.s;
+	struct winlink			*wl = item->target.wl;
+	struct window_pane		*wp = item->target.wp;
 	FILE				*f;
-	const char			*path, *bufname;
+	const char			*bufname;
 	char				*pdata = NULL, *new_pdata, *cause;
-	char				*file;
+	char				*path, *file;
 	size_t				 psize;
 	int				 ch, error;
 
@@ -68,8 +71,11 @@ cmd_load_buffer_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(args, 'b'))
 		bufname = args_get(args, 'b');
 
-	path = args->argv[0];
+	path = format_single(item, args->argv[0], c, s, wl, wp);
 	if (strcmp(path, "-") == 0) {
+		free(path);
+		c = item->client;
+
 		cdata = xcalloc(1, sizeof *cdata);
 		cdata->item = item;
 
@@ -79,14 +85,17 @@ cmd_load_buffer_exec(struct cmd *self, struct cmdq_item *item)
 		error = server_set_stdin_callback(c, cmd_load_buffer_callback,
 		    cdata, &cause);
 		if (error != 0) {
-			cmdq_error(item, "%s: %s", path, cause);
+			cmdq_error(item, "-: %s", cause);
 			free(cause);
+			free(cdata);
 			return (CMD_RETURN_ERROR);
 		}
 		return (CMD_RETURN_WAIT);
 	}
 
 	file = server_client_get_path(c, path);
+	free(path);
+
 	f = fopen(file, "rb");
 	if (f == NULL) {
 		cmdq_error(item, "%s: %s", file, strerror(errno));

cmd-new-session.c

@@ -71,14 +71,15 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 	struct session		*s, *as, *groupwith;
 	struct window		*w;
 	struct environ		*env;
+	struct options		*oo;
 	struct termios		 tio, *tiop;
 	struct session_group	*sg;
 	const char		*errstr, *template, *group, *prefix;
-	const char		*path, *cmd, *tmp;
+	const char		*path, *cmd, *tmp, *value;
 	char		       **argv, *cause, *cp, *newname, *cwd = NULL;
 	int			 detached, already_attached, idx, argc;
 	int			 is_control = 0;
-	u_int			 sx, sy;
+	u_int			 sx, sy, dsx = 80, dsy = 24;
 	struct environ_entry	*envent;
 	struct cmd_find_state	 fs;
 	enum cmd_retval		 retval;
@@ -156,10 +157,8 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 	/* Get the new session working directory. */
 	if ((tmp = args_get(args, 'c')) != NULL)
 		cwd = format_single(item, tmp, c, NULL, NULL, NULL);
-	else if (c != NULL && c->session == NULL && c->cwd != NULL)
-		cwd = xstrdup(c->cwd);
 	else
-		cwd = xstrdup(".");
+		cwd = xstrdup(server_client_get_cwd(c, NULL));
 
 	/*
 	 * If this is a new client, check for nesting and save the termios
@@ -191,31 +190,50 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		}
 	}
 
+	/* Get default session size. */
+	if (args_has(args, 'x')) {
+		tmp = args_get(args, 'x');
+		if (strcmp(tmp, "-") == 0) {
+			if (c != NULL)
+				dsx = c->tty.sx;
+		} else {
+			dsx = strtonum(tmp, 1, USHRT_MAX, &errstr);
+			if (errstr != NULL) {
+				cmdq_error(item, "width %s", errstr);
+				goto error;
+			}
+		}
+	}
+	if (args_has(args, 'y')) {
+		tmp = args_get(args, 'y');
+		if (strcmp(tmp, "-") == 0) {
+			if (c != NULL)
+				dsy = c->tty.sy;
+		} else {
+			dsy = strtonum(tmp, 1, USHRT_MAX, &errstr);
+			if (errstr != NULL) {
+				cmdq_error(item, "height %s", errstr);
+				goto error;
+			}
+		}
+	}
+
 	/* Find new session size. */
-	if (!detached) {
+	if (!detached && !is_control) {
 		sx = c->tty.sx;
 		sy = c->tty.sy;
-		if (!is_control &&
+		if (sy > 0 && options_get_number(global_s_options, "status"))
-		    sy > 0 &&
-		    options_get_number(global_s_options, "status"))
 			sy--;
 	} else {
-		sx = 80;
+		value = options_get_string(global_s_options, "default-size");
-		sy = 24;
+		if (sscanf(value, "%ux%u", &sx, &sy) != 2) {
-	}
+			sx = 80;
-	if ((is_control || detached) && args_has(args, 'x')) {
+			sy = 24;
-		sx = strtonum(args_get(args, 'x'), 1, USHRT_MAX, &errstr);
-		if (errstr != NULL) {
-			cmdq_error(item, "width %s", errstr);
-			goto error;
-		}
-	}
-	if ((is_control || detached) && args_has(args, 'y')) {
-		sy = strtonum(args_get(args, 'y'), 1, USHRT_MAX, &errstr);
-		if (errstr != NULL) {
-			cmdq_error(item, "height %s", errstr);
-			goto error;
 		}
+		if (args_has(args, 'x'))
+			sx = dsx;
+		if (args_has(args, 'y'))
+			sy = dsy;
 	}
 	if (sx == 0)
 		sx = 1;
@@ -252,10 +270,15 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 	if (c != NULL && !args_has(args, 'E'))
 		environ_update(global_s_options, c->environ, env);
 
+	/* Set up the options. */
+	oo = options_create(global_s_options);
+	if (args_has(args, 'x') || args_has(args, 'y'))
+		options_set_string(oo, "default-size", 0, "%ux%u", dsx, dsy);
+
 	/* Create the new session. */
 	idx = -1 - options_get_number(global_s_options, "base-index");
-	s = session_create(prefix, newname, argc, argv, path, cwd, env, tiop,
+	s = session_create(prefix, newname, argc, argv, path, cwd, env, oo,
-	    idx, sx, sy, &cause);
+	    tiop, idx, &cause);
 	environ_free(env);
 	if (s == NULL) {
 		cmdq_error(item, "create session failed: %s", cause);
@@ -303,6 +326,7 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		c->session = s;
 		if (~item->shared->flags & CMDQ_SHARED_REPEAT)
 			server_client_set_key_table(c, NULL);
+		tty_update_client_offset(c);
 		status_timer_start(c);
 		notify_client("client-session-changed", c);
 		session_update_activity(s, NULL);

cmd-new-window.c

@@ -63,7 +63,7 @@ cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
 	struct environ_entry	*envent;
 	struct cmd_find_state	 fs;
 
-	if (args_has(args, 'a')) {
+	if (args_has(args, 'a') && wl != NULL) {
 		if ((idx = winlink_shuffle_up(s, wl)) == -1) {
 			cmdq_error(item, "no free window indexes");
 			return (CMD_RETURN_ERROR);
@@ -95,17 +95,14 @@ cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
 
 	if ((tmp = args_get(args, 'c')) != NULL)
 		cwd = format_single(item, tmp, c, s, NULL, NULL);
-	else if (item->client != NULL && item->client->session == NULL)
-		cwd = xstrdup(item->client->cwd);
 	else
-		cwd = xstrdup(s->cwd);
+		cwd = xstrdup(server_client_get_cwd(item->client, s));
 
 	if ((tmp = args_get(args, 'n')) != NULL)
 		name = format_single(item, tmp, c, s, NULL, NULL);
 	else
 		name = NULL;
 
-	wl = NULL;
 	if (idx != -1)
 		wl = winlink_find_by_index(&s->windows, idx);
 	if (wl != NULL && args_has(args, 'k')) {

cmd-pipe-pane.c

@@ -109,7 +109,7 @@ cmd_pipe_pane_exec(struct cmd *self, struct cmdq_item *item)
 	/* Expand the command. */
 	ft = format_create(item->client, item, FORMAT_NONE, 0);
 	format_defaults(ft, c, s, wl, wp);
-	cmd = format_expand_time(ft, args->argv[0], time(NULL));
+	cmd = format_expand_time(ft, args->argv[0]);
 	format_free(ft);
 
 	/* Fork the child. */
@@ -157,7 +157,10 @@ cmd_pipe_pane_exec(struct cmd *self, struct cmdq_item *item)
 		close(pipe_fd[1]);
 
 		wp->pipe_fd = pipe_fd[0];
-		wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
+		if (wp->fd != -1)
+			wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
+		else
+			wp->pipe_off = 0;
 
 		setblocking(wp->pipe_fd, 0);
 		wp->pipe_event = bufferevent_new(wp->pipe_fd,
@@ -165,6 +168,8 @@ cmd_pipe_pane_exec(struct cmd *self, struct cmdq_item *item)
 		    cmd_pipe_pane_write_callback,
 		    cmd_pipe_pane_error_callback,
 		    wp);
+		if (wp->pipe_event == NULL)
+			fatalx("out of memory");
 		if (out)
 			bufferevent_enable(wp->pipe_event, EV_WRITE);
 		if (in)

cmd-queue.c

@@ -404,10 +404,11 @@ cmdq_guard(struct cmdq_item *item, const char *guard, int flags)
 void
 cmdq_print(struct cmdq_item *item, const char *fmt, ...)
 {
-	struct client	*c = item->client;
+	struct client			*c = item->client;
-	struct window	*w;
+	struct window_pane		*wp;
-	va_list		 ap;
+	struct window_mode_entry	*wme;
-	char		*tmp, *msg;
+	va_list				 ap;
+	char				*tmp, *msg;
 
 	va_start(ap, fmt);
 
@@ -425,14 +426,11 @@ cmdq_print(struct cmdq_item *item, const char *fmt, ...)
 		evbuffer_add(c->stdout_data, "\n", 1);
 		server_client_push_stdout(c);
 	} else {
-		w = c->session->curw->window;
+		wp = c->session->curw->window->active;
-		if (w->active->mode != &window_copy_mode) {
+		wme = TAILQ_FIRST(&wp->modes);
-			window_pane_reset_mode(w->active);
+		if (wme == NULL || wme->mode != &window_view_mode)
-			window_pane_set_mode(w->active, &window_copy_mode, NULL,
+			window_pane_set_mode(wp, &window_view_mode, NULL, NULL);
-			    NULL);
+		window_copy_vadd(wp, fmt, ap);
-			window_copy_init_for_output(w->active);
-		}
-		window_copy_vadd(w->active, fmt, ap);
 	}
 
 	va_end(ap);

cmd-refresh-client.c

@@ -18,6 +18,8 @@
 
 #include <sys/types.h>
 
+#include <stdlib.h>
+
 #include "tmux.h"
 
 /*
@@ -31,8 +33,8 @@ const struct cmd_entry cmd_refresh_client_entry = {
 	.name = "refresh-client",
 	.alias = "refresh",
 
-	.args = { "C:St:", 0, 0 },
+	.args = { "cC:DlLRSt:U", 0, 1 },
-	.usage = "[-S] [-C size] " CMD_TARGET_CLIENT_USAGE,
+	.usage = "[-cDlLRSU] [-C size] " CMD_TARGET_CLIENT_USAGE " [adjustment]",
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_refresh_client_exec
@@ -43,23 +45,80 @@ cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args	*args = self->args;
 	struct client	*c;
-	const char	*size;
+	struct tty	*tty;
-	u_int		 w, h;
+	struct window	*w;
+	const char	*size, *errstr;
+	u_int		 x, y, adjust;
 
 	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
 		return (CMD_RETURN_ERROR);
+	tty = &c->tty;
 
-	if (args_has(args, 'C')) {
+	if (args_has(args, 'c') ||
+	    args_has(args, 'L') ||
+	    args_has(args, 'R') ||
+	    args_has(args, 'U') ||
+	    args_has(args, 'D'))
+	{
+		if (args->argc == 0)
+			adjust = 1;
+		else {
+			adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr);
+			if (errstr != NULL) {
+				cmdq_error(item, "adjustment %s", errstr);
+				return (CMD_RETURN_ERROR);
+			}
+		}
+
+		if (args_has(args, 'c'))
+		    c->pan_window = NULL;
+		else {
+			w = c->session->curw->window;
+			if (c->pan_window != w) {
+				c->pan_window = w;
+				c->pan_ox = tty->oox;
+				c->pan_oy = tty->ooy;
+			}
+			if (args_has(args, 'L')) {
+				if (c->pan_ox > adjust)
+					c->pan_ox -= adjust;
+				else
+					c->pan_ox = 0;
+			} else if (args_has(args, 'R')) {
+				c->pan_ox += adjust;
+				if (c->pan_ox > w->sx - tty->osx)
+					c->pan_ox = w->sx - tty->osx;
+			} else if (args_has(args, 'U')) {
+				if (c->pan_oy > adjust)
+					c->pan_oy -= adjust;
+				else
+					c->pan_oy = 0;
+			} else if (args_has(args, 'D')) {
+				c->pan_oy += adjust;
+				if (c->pan_oy > w->sy - tty->osy)
+					c->pan_oy = w->sy - tty->osy;
+			}
+		}
+		tty_update_client_offset(c);
+		server_redraw_client(c);
+		return (CMD_RETURN_NORMAL);
+	}
+
+	if (args_has(args, 'l')) {
+		if (c->session != NULL)
+			tty_putcode_ptr2(&c->tty, TTYC_MS, "", "?");
+	} else if (args_has(args, 'C')) {
 		if ((size = args_get(args, 'C')) == NULL) {
 			cmdq_error(item, "missing size");
 			return (CMD_RETURN_ERROR);
 		}
-		if (sscanf(size, "%u,%u", &w, &h) != 2) {
+		if (sscanf(size, "%u,%u", &x, &y) != 2 &&
+		    sscanf(size, "%ux%u", &x, &y)) {
 			cmdq_error(item, "bad size argument");
 			return (CMD_RETURN_ERROR);
 		}
-		if (w < PANE_MINIMUM || w > 5000 ||
+		if (x < WINDOW_MINIMUM || x > WINDOW_MAXIMUM ||
-		    h < PANE_MINIMUM || h > 5000) {
+		    y < WINDOW_MINIMUM || y > WINDOW_MAXIMUM) {
 			cmdq_error(item, "size too small or too big");
 			return (CMD_RETURN_ERROR);
 		}
@@ -67,16 +126,18 @@ cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
 			cmdq_error(item, "not a control client");
 			return (CMD_RETURN_ERROR);
 		}
-		tty_set_size(&c->tty, w, h);
+		tty_set_size(&c->tty, x, y);
 		c->flags |= CLIENT_SIZECHANGED;
 		recalculate_sizes();
-	} else if (args_has(args, 'S')) {
+		return (CMD_RETURN_NORMAL);
+	}
+
+	if (args_has(args, 'S')) {
 		c->flags |= CLIENT_STATUSFORCE;
 		server_status_client(c);
 	} else {
 		c->flags |= CLIENT_STATUSFORCE;
 		server_redraw_client(c);
 	}
-
 	return (CMD_RETURN_NORMAL);
 }

cmd-rename-session.c

@@ -47,7 +47,7 @@ static enum cmd_retval
 cmd_rename_session_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct client		*c = cmd_find_client(item, NULL, 0);
+	struct client		*c = cmd_find_client(item, NULL, 1);
 	struct session		*s = item->target.s;
 	char			*newname;
 

cmd-resize-pane.c

@@ -91,9 +91,8 @@ cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
 		}
 	}
 
-	if (args_has(self->args, 'x')) {
+	if (args_has(args, 'x')) {
-		x = args_strtonum(self->args, 'x', PANE_MINIMUM, INT_MAX,
+		x = args_strtonum(args, 'x', PANE_MINIMUM, INT_MAX, &cause);
-		    &cause);
 		if (cause != NULL) {
 			cmdq_error(item, "width %s", cause);
 			free(cause);
@@ -101,9 +100,8 @@ cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
 		}
 		layout_resize_pane_to(wp, LAYOUT_LEFTRIGHT, x);
 	}
-	if (args_has(self->args, 'y')) {
+	if (args_has(args, 'y')) {
-		y = args_strtonum(self->args, 'y', PANE_MINIMUM, INT_MAX,
+		y = args_strtonum(args, 'y', PANE_MINIMUM, INT_MAX, &cause);
-		    &cause);
 		if (cause != NULL) {
 			cmdq_error(item, "height %s", cause);
 			free(cause);
@@ -112,13 +110,13 @@ cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
 		layout_resize_pane_to(wp, LAYOUT_TOPBOTTOM, y);
 	}
 
-	if (args_has(self->args, 'L'))
+	if (args_has(args, 'L'))
 		layout_resize_pane(wp, LAYOUT_LEFTRIGHT, -adjust, 1);
-	else if (args_has(self->args, 'R'))
+	else if (args_has(args, 'R'))
 		layout_resize_pane(wp, LAYOUT_LEFTRIGHT, adjust, 1);
-	else if (args_has(self->args, 'U'))
+	else if (args_has(args, 'U'))
 		layout_resize_pane(wp, LAYOUT_TOPBOTTOM, -adjust, 1);
-	else if (args_has(self->args, 'D'))
+	else if (args_has(args, 'D'))
 		layout_resize_pane(wp, LAYOUT_TOPBOTTOM, adjust, 1);
 	server_redraw_window(wl->window);
 
@@ -129,14 +127,21 @@ static void
 cmd_resize_pane_mouse_update(struct client *c, struct mouse_event *m)
 {
 	struct winlink		*wl;
-	struct window_pane	*loop, *wp_x, *wp_y;
+	struct window		*w;
-	u_int			 y, ly, x, lx, sx, sy, ex, ey;
+	u_int			 y, ly, x, lx;
+	static const int         offsets[][2] = {
+	    { 0, 0 }, { 0, 1 }, { 1, 0 }, { 0, -1 }, { -1, 0 },
+	};
+	struct layout_cell	*cells[nitems(offsets)], *lc;
+	u_int			 ncells = 0, i, j, resizes = 0;
+	enum layout_type	 type;
 
 	wl = cmd_mouse_window(m, NULL);
 	if (wl == NULL) {
 		c->tty.mouse_drag_update = NULL;
 		return;
 	}
+	w = wl->window;
 
 	y = m->y; x = m->x;
 	if (m->statusat == 0 && y > 0)
@@ -149,37 +154,37 @@ cmd_resize_pane_mouse_update(struct client *c, struct mouse_event *m)
 	else if (m->statusat > 0 && ly >= (u_int)m->statusat)
 		ly = m->statusat - 1;
 
-	wp_x = wp_y = NULL;
+	for (i = 0; i < nitems(cells); i++) {
-	TAILQ_FOREACH(loop, &wl->window->panes, entry) {
+		lc = layout_search_by_border(w->layout_root, lx + offsets[i][0],
-		if (!window_pane_visible(loop))
+		    ly + offsets[i][1]);
+		if (lc == NULL)
 			continue;
 
-		sx = loop->xoff;
+		for (j = 0; j < ncells; j++) {
-		if (sx != 0)
+			if (cells[j] == lc) {
-			sx--;
+				lc = NULL;
-		ex = loop->xoff + loop->sx;
+				break;
+			}
+		}
+		if (lc == NULL)
+			continue;
 
-		sy = loop->yoff;
+		cells[ncells] = lc;
-		if (sy != 0)
+		ncells++;
-			sy--;
-		ey = loop->yoff + loop->sy;
-
-		if ((lx == sx || lx == ex) &&
-		    (ly >= sy && ly <= ey) &&
-		    (wp_x == NULL || loop->sy > wp_x->sy))
-			wp_x = loop;
-		if ((ly == sy || ly == ey) &&
-		    (lx >= sx && lx <= ex) &&
-		    (wp_y == NULL || loop->sx > wp_y->sx))
-			wp_y = loop;
 	}
-	if (wp_x == NULL && wp_y == NULL) {
+	if (ncells == 0)
-		c->tty.mouse_drag_update = NULL;
 		return;
+
+	for (i = 0; i < ncells; i++) {
+		type = cells[i]->parent->type;
+		if (y != ly && type == LAYOUT_TOPBOTTOM) {
+			layout_resize_layout(w, cells[i], type, y - ly, 0);
+			resizes++;
+		} else if (x != lx && type == LAYOUT_LEFTRIGHT) {
+			layout_resize_layout(w, cells[i], type, x - lx, 0);
+			resizes++;
+		}
 	}
-	if (wp_x != NULL)
+	if (resizes != 0)
-		layout_resize_pane(wp_x, LAYOUT_LEFTRIGHT, x - lx, 0);
+		server_redraw_window(w);
-	if (wp_y != NULL)
-		layout_resize_pane(wp_y, LAYOUT_TOPBOTTOM, y - ly, 0);
-	server_redraw_window(wl->window);
 }

cmd-resize-window.c

@@ -0,0 +1,109 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2018 Nicholas Marriott <nicholas.marriott@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stdlib.h>
+
+#include "tmux.h"
+
+/*
+ * Increase or decrease window size.
+ */
+
+static enum cmd_retval	cmd_resize_window_exec(struct cmd *,
+			    struct cmdq_item *);
+
+const struct cmd_entry cmd_resize_window_entry = {
+	.name = "resize-window",
+	.alias = "resizew",
+
+	.args = { "aADLRt:Ux:y:", 0, 1 },
+	.usage = "[-aADLRU] [-x width] [-y height] " CMD_TARGET_WINDOW_USAGE " "
+		 "[adjustment]",
+
+	.target = { 't', CMD_FIND_WINDOW, 0 },
+
+	.flags = CMD_AFTERHOOK,
+	.exec = cmd_resize_window_exec
+};
+
+static enum cmd_retval
+cmd_resize_window_exec(struct cmd *self, struct cmdq_item *item)
+{
+	struct args		*args = self->args;
+	struct winlink		*wl = item->target.wl;
+	struct window		*w = wl->window;
+	struct session		*s = item->target.s;
+	const char	       	*errstr;
+	char			*cause;
+	u_int			 adjust, sx, sy;
+
+	if (args->argc == 0)
+		adjust = 1;
+	else {
+		adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr);
+		if (errstr != NULL) {
+			cmdq_error(item, "adjustment %s", errstr);
+			return (CMD_RETURN_ERROR);
+		}
+	}
+
+	sx = w->sx;
+	sy = w->sy;
+
+	if (args_has(args, 'x')) {
+		sx = args_strtonum(args, 'x', WINDOW_MINIMUM, WINDOW_MAXIMUM,
+		    &cause);
+		if (cause != NULL) {
+			cmdq_error(item, "width %s", cause);
+			free(cause);
+			return (CMD_RETURN_ERROR);
+		}
+	}
+	if (args_has(args, 'y')) {
+		sy = args_strtonum(args, 'y', WINDOW_MINIMUM, WINDOW_MAXIMUM,
+		    &cause);
+		if (cause != NULL) {
+			cmdq_error(item, "height %s", cause);
+			free(cause);
+			return (CMD_RETURN_ERROR);
+		}
+	}
+
+	if (args_has(args, 'L')) {
+		if (sx >= adjust)
+			sx -= adjust;
+	} else if (args_has(args, 'R'))
+		sx += adjust;
+	else if (args_has(args, 'U')) {
+		if (sy >= adjust)
+			sy -= adjust;
+	} else if (args_has(args, 'D'))
+		sy += adjust;
+
+	if (args_has(args, 'A'))
+		default_window_size(s, w, &sx, &sy, WINDOW_SIZE_LARGEST);
+	else if (args_has(args, 'a'))
+		default_window_size(s, w, &sx, &sy, WINDOW_SIZE_SMALLEST);
+
+	options_set_number(w->options, "window-size", WINDOW_SIZE_MANUAL);
+	resize_window(w, sx, sy);
+
+	return (CMD_RETURN_NORMAL);
+}

cmd-respawn-pane.c

@@ -67,7 +67,7 @@ cmd_respawn_pane_exec(struct cmd *self, struct cmdq_item *item)
 		return (CMD_RETURN_ERROR);
 	}
 
-	window_pane_reset_mode(wp);
+	window_pane_reset_mode_all(wp);
 	screen_reinit(&wp->base);
 	input_init(wp);
 

cmd-respawn-window.c

@@ -99,7 +99,7 @@ cmd_respawn_window_exec(struct cmd *self, struct cmdq_item *item)
 	free(cwd);
 
 	layout_init(w, wp);
-	window_pane_reset_mode(wp);
+	window_pane_reset_mode_all(wp);
 	screen_reinit(&wp->base);
 	input_init(wp);
 	window_set_active_pane(w, wp);

cmd-run-shell.c

@@ -57,9 +57,10 @@ struct cmd_run_shell_data {
 static void
 cmd_run_shell_print(struct job *job, const char *msg)
 {
-	struct cmd_run_shell_data	*cdata = job->data;
+	struct cmd_run_shell_data	*cdata = job_get_data(job);
 	struct window_pane		*wp = NULL;
 	struct cmd_find_state		 fs;
+	struct window_mode_entry	*wme;
 
 	if (cdata->wp_id != -1)
 		wp = window_pane_find_by_id(cdata->wp_id);
@@ -75,10 +76,10 @@ cmd_run_shell_print(struct job *job, const char *msg)
 			return;
 	}
 
-	if (window_pane_set_mode(wp, &window_copy_mode, NULL, NULL) == 0)
+	wme = TAILQ_FIRST(&wp->modes);
-		window_copy_init_for_output(wp);
+	if (wme == NULL || wme->mode != &window_view_mode)
-	if (wp->mode == &window_copy_mode)
+		window_pane_set_mode(wp, &window_view_mode, NULL, NULL);
-		window_copy_add(wp, "%s", msg);
+	window_copy_add(wp, "%s", msg);
 }
 
 static enum cmd_retval
@@ -90,14 +91,6 @@ cmd_run_shell_exec(struct cmd *self, struct cmdq_item *item)
 	struct session			*s = item->target.s;
 	struct winlink			*wl = item->target.wl;
 	struct window_pane		*wp = item->target.wp;
-	const char			*cwd;
-
-	if (item->client != NULL && item->client->session == NULL)
-		cwd = item->client->cwd;
-	else if (s != NULL)
-		cwd = s->cwd;
-	else
-		cwd = NULL;
 
 	cdata = xcalloc(1, sizeof *cdata);
 	cdata->cmd = format_single(item, args->argv[0], c, s, wl, wp);
@@ -110,8 +103,12 @@ cmd_run_shell_exec(struct cmd *self, struct cmdq_item *item)
 	if (!args_has(args, 'b'))
 		cdata->item = item;
 
-	job_run(cdata->cmd, s, cwd, NULL, cmd_run_shell_callback,
+	if (job_run(cdata->cmd, s, server_client_get_cwd(item->client, s), NULL,
-	    cmd_run_shell_free, cdata, 0);
+	    cmd_run_shell_callback, cmd_run_shell_free, cdata, 0) == NULL) {
+		cmdq_error(item, "failed to run command: %s", cdata->cmd);
+		free(cdata);
+		return (CMD_RETURN_ERROR);
+	}
 
 	if (args_has(args, 'b'))
 		return (CMD_RETURN_NORMAL);
@@ -121,22 +118,23 @@ cmd_run_shell_exec(struct cmd *self, struct cmdq_item *item)
 static void
 cmd_run_shell_callback(struct job *job)
 {
-	struct cmd_run_shell_data	*cdata = job->data;
+	struct cmd_run_shell_data	*cdata = job_get_data(job);
-	char				*cmd = cdata->cmd, *msg, *line;
+	struct bufferevent		*event = job_get_event(job);
+	char				*cmd = cdata->cmd, *msg = NULL, *line;
 	size_t				 size;
-	int				 retcode;
+	int				 retcode, status;
 
 	do {
-		if ((line = evbuffer_readline(job->event->input)) != NULL) {
+		if ((line = evbuffer_readline(event->input)) != NULL) {
 			cmd_run_shell_print(job, line);
 			free(line);
 		}
 	} while (line != NULL);
 
-	size = EVBUFFER_LENGTH(job->event->input);
+	size = EVBUFFER_LENGTH(event->input);
 	if (size != 0) {
 		line = xmalloc(size + 1);
-		memcpy(line, EVBUFFER_DATA(job->event->input), size);
+		memcpy(line, EVBUFFER_DATA(event->input), size);
 		line[size] = '\0';
 
 		cmd_run_shell_print(job, line);
@@ -144,12 +142,12 @@ cmd_run_shell_callback(struct job *job)
 		free(line);
 	}
 
-	msg = NULL;
+	status = job_get_status(job);
-	if (WIFEXITED(job->status)) {
+	if (WIFEXITED(status)) {
-		if ((retcode = WEXITSTATUS(job->status)) != 0)
+		if ((retcode = WEXITSTATUS(status)) != 0)
 			xasprintf(&msg, "'%s' returned %d", cmd, retcode);
-	} else if (WIFSIGNALED(job->status)) {
+	} else if (WIFSIGNALED(status)) {
-		retcode = WTERMSIG(job->status);
+		retcode = WTERMSIG(status);
 		xasprintf(&msg, "'%s' terminated by signal %d", cmd, retcode);
 	}
 	if (msg != NULL)

cmd-save-buffer.c

@@ -59,11 +59,13 @@ static enum cmd_retval
 cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct client		*c = item->client;
+	struct client		*c = cmd_find_client(item, NULL, 1);
+	struct session		*s = item->target.s;
+	struct winlink		*wl = item->target.wl;
+	struct window_pane	*wp = item->target.wp;
 	struct paste_buffer	*pb;
-	const char		*path, *bufname, *bufdata, *start, *end;
+	const char		*bufname, *bufdata, *start, *end, *flags;
-	const char		*flags;
+	char			*msg, *path, *file;
-	char			*msg, *file;
 	size_t			 size, used, msglen, bufsize;
 	FILE			*f;
 
@@ -83,10 +85,12 @@ cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
 	bufdata = paste_buffer_data(pb, &bufsize);
 
 	if (self->entry == &cmd_show_buffer_entry)
-		path = "-";
+		path = xstrdup("-");
 	else
-		path = args->argv[0];
+		path = format_single(item, args->argv[0], c, s, wl, wp);
 	if (strcmp(path, "-") == 0) {
+		free(path);
+		c = item->client;
 		if (c == NULL) {
 			cmdq_error(item, "can't write to stdout");
 			return (CMD_RETURN_ERROR);
@@ -101,6 +105,8 @@ cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
 		flags = "ab";
 
 	file = server_client_get_path(c, path);
+	free(path);
+
 	f = fopen(file, flags);
 	if (f == NULL) {
 		cmdq_error(item, "%s: %s", file, strerror(errno));

cmd-select-layout.c

@@ -135,7 +135,9 @@ cmd_select_layout_exec(struct cmd *self, struct cmdq_item *item)
 
 changed:
 	free(oldlayout);
+	recalculate_sizes();
 	server_redraw_window(w);
+	notify_window("window-layout-changed", w);
 	return (CMD_RETURN_NORMAL);
 
 error:

cmd-select-pane.c

@@ -19,6 +19,7 @@
 #include <sys/types.h>
 
 #include <stdlib.h>
+#include <string.h>
 
 #include "tmux.h"
 
@@ -54,6 +55,31 @@ const struct cmd_entry cmd_last_pane_entry = {
 	.exec = cmd_select_pane_exec
 };
 
+static void
+cmd_select_pane_redraw(struct window *w)
+{
+	struct client	*c;
+
+	/*
+	 * Redraw entire window if it is bigger than the client (the
+	 * offset may change), otherwise just draw borders.
+	 */
+
+	TAILQ_FOREACH(c, &clients, entry) {
+		if (c->session == NULL)
+			continue;
+		if (c->session->curw->window == w && tty_window_bigger(&c->tty))
+			server_redraw_client(c);
+		else {
+			if (c->session->curw->window == w)
+				c->flags |= CLIENT_REDRAWBORDERS;
+			if (session_has(c->session, w))
+				c->flags |= CLIENT_REDRAWSTATUS;
+		}
+
+	}
+}
+
 static enum cmd_retval
 cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
@@ -64,11 +90,17 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 	struct window		*w = wl->window;
 	struct session		*s = item->target.s;
 	struct window_pane	*wp = item->target.wp, *lastwp, *markedwp;
+	struct style		*sy = &wp->style;
 	char			*pane_title;
 	const char		*style;
 
 	if (self->entry == &cmd_last_pane_entry || args_has(args, 'l')) {
 		lastwp = w->last;
+		if (lastwp == NULL && window_count_panes(w) == 2) {
+			lastwp = TAILQ_PREV(w->active, window_panes, entry);
+			if (lastwp == NULL)
+				lastwp = TAILQ_NEXT(w->active, entry);
+		}
 		if (lastwp == NULL) {
 			cmdq_error(item, "no last pane");
 			return (CMD_RETURN_ERROR);
@@ -82,8 +114,7 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 			window_redraw_active_switch(w, lastwp);
 			if (window_set_active_pane(w, lastwp)) {
 				cmd_find_from_winlink(current, wl, 0);
-				server_status_window(w);
+				cmd_select_pane_redraw(w);
-				server_redraw_window_borders(w);
 			}
 		}
 		return (CMD_RETURN_NORMAL);
@@ -112,17 +143,16 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 	}
 
 	if (args_has(self->args, 'P') || args_has(self->args, 'g')) {
-		if (args_has(args, 'P')) {
+		if ((style = args_get(args, 'P')) != NULL) {
-			style = args_get(args, 'P');
+			style_set(sy, &grid_default_cell);
-			if (style_parse(&grid_default_cell, &wp->colgc,
+			if (style_parse(sy, &grid_default_cell, style) == -1) {
-			    style) == -1) {
 				cmdq_error(item, "bad style: %s", style);
 				return (CMD_RETURN_ERROR);
 			}
 			wp->flags |= PANE_REDRAW;
 		}
 		if (args_has(self->args, 'g'))
-			cmdq_print(item, "%s", style_tostring(&wp->colgc));
+			cmdq_print(item, "%s", style_tostring(sy));
 		return (CMD_RETURN_NORMAL);
 	}
 
@@ -157,21 +187,17 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 		screen_set_title(&wp->base, pane_title);
 		server_status_window(wp->window);
 		free(pane_title);
+		return (CMD_RETURN_NORMAL);
 	}
 
 	if (wp == w->active)
 		return (CMD_RETURN_NORMAL);
 	server_unzoom_window(wp->window);
-	if (!window_pane_visible(wp)) {
-		cmdq_error(item, "pane not visible");
-		return (CMD_RETURN_ERROR);
-	}
 	window_redraw_active_switch(w, wp);
 	if (window_set_active_pane(w, wp)) {
 		cmd_find_from_winlink_pane(current, wl, wp, 0);
 		hooks_insert(s->hooks, item, current, "after-select-pane");
-		server_status_window(w);
+		cmd_select_pane_redraw(w);
-		server_redraw_window_borders(w);
 	}
 
 	return (CMD_RETURN_NORMAL);

cmd-send-keys.c

@@ -58,21 +58,23 @@ const struct cmd_entry cmd_send_prefix_entry = {
 static void
 cmd_send_keys_inject(struct client *c, struct cmdq_item *item, key_code key)
 {
-	struct window_pane	*wp = item->target.wp;
+	struct window_pane		*wp = item->target.wp;
-	struct session		*s = item->target.s;
+	struct session			*s = item->target.s;
-	struct key_table	*table;
+	struct winlink			*wl = item->target.wl;
-	struct key_binding	*bd, bd_find;
+	struct window_mode_entry	*wme;
+	struct key_table		*table;
+	struct key_binding		*bd;
 
-	if (wp->mode == NULL || wp->mode->key_table == NULL) {
+	wme = TAILQ_FIRST(&wp->modes);
+	if (wme == NULL || wme->mode->key_table == NULL) {
 		if (options_get_number(wp->window->options, "xterm-keys"))
 			key |= KEYC_XTERM;
-		window_pane_key(wp, NULL, s, key, NULL);
+		window_pane_key(wp, NULL, s, wl, key, NULL);
 		return;
 	}
-	table = key_bindings_get_table(wp->mode->key_table(wp), 1);
+	table = key_bindings_get_table(wme->mode->key_table(wme), 1);
 
-	bd_find.key = (key & ~KEYC_XTERM);
+	bd = key_bindings_get(table, key & ~KEYC_XTERM);
-	bd = RB_FIND(key_bindings, &table->key_bindings, &bd_find);
 	if (bd != NULL) {
 		table->references++;
 		key_bindings_dispatch(bd, item, c, NULL, &item->target);
@@ -83,17 +85,19 @@ cmd_send_keys_inject(struct client *c, struct cmdq_item *item, key_code key)
 static enum cmd_retval
 cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct args		*args = self->args;
+	struct args			*args = self->args;
-	struct client		*c = cmd_find_client(item, NULL, 1);
+	struct client			*c = cmd_find_client(item, NULL, 1);
-	struct window_pane	*wp = item->target.wp;
+	struct window_pane		*wp = item->target.wp;
-	struct session		*s = item->target.s;
+	struct session			*s = item->target.s;
-	struct mouse_event	*m = &item->shared->mouse;
+	struct winlink			*wl = item->target.wl;
-	struct utf8_data	*ud, *uc;
+	struct mouse_event		*m = &item->shared->mouse;
-	wchar_t			 wc;
+	struct window_mode_entry	*wme = TAILQ_FIRST(&wp->modes);
-	int			 i, literal;
+	struct utf8_data		*ud, *uc;
-	key_code		 key;
+	wchar_t				 wc;
-	u_int			 np = 1;
+	int				 i, literal;
-	char			*cause = NULL;
+	key_code			 key;
+	u_int				 np = 1;
+	char				*cause = NULL;
 
 	if (args_has(args, 'N')) {
 		np = args_strtonum(args, 'N', 1, UINT_MAX, &cause);
@@ -102,19 +106,23 @@ cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 			free(cause);
 			return (CMD_RETURN_ERROR);
 		}
-		if (args_has(args, 'X') || args->argc == 0)
+		if (wme != NULL && (args_has(args, 'X') || args->argc == 0)) {
-			wp->modeprefix = np;
+			if (wme == NULL || wme->mode->command == NULL) {
+				cmdq_error(item, "not in a mode");
+				return (CMD_RETURN_ERROR);
+			}
+			wme->prefix = np;
+		}
 	}
 
 	if (args_has(args, 'X')) {
-		if (wp->mode == NULL || wp->mode->command == NULL) {
+		if (wme == NULL || wme->mode->command == NULL) {
 			cmdq_error(item, "not in a mode");
 			return (CMD_RETURN_ERROR);
 		}
 		if (!m->valid)
-			wp->mode->command(wp, c, s, args, NULL);
+			m = NULL;
-		else
+		wme->mode->command(wme, c, s, wl, args, m);
-			wp->mode->command(wp, c, s, args, m);
 		return (CMD_RETURN_NORMAL);
 	}
 
@@ -124,7 +132,7 @@ cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 			cmdq_error(item, "no mouse target");
 			return (CMD_RETURN_ERROR);
 		}
-		window_pane_key(wp, NULL, s, m->key, m);
+		window_pane_key(wp, NULL, s, wl, m->key, m);
 		return (CMD_RETURN_NORMAL);
 	}
 

cmd-set-hook.c

@@ -33,8 +33,8 @@ const struct cmd_entry cmd_set_hook_entry = {
 	.name = "set-hook",
 	.alias = NULL,
 
-	.args = { "gt:u", 1, 2 },
+	.args = { "gRt:u", 1, 2 },
-	.usage = "[-gu] " CMD_TARGET_SESSION_USAGE " hook-name [command]",
+	.usage = "[-gRu] " CMD_TARGET_SESSION_USAGE " hook-name [command]",
 
 	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
 
@@ -101,18 +101,21 @@ cmd_set_hook_exec(struct cmd *self, struct cmdq_item *item)
 	else
 		cmd = args->argv[1];
 
+	if (cmd != NULL && (args_has(args, 'R') || args_has(args, 'u'))) {
+		cmdq_error(item, "no command allowed");
+		return (CMD_RETURN_ERROR);
+	}
+	if (args_has(args, 'R')) {
+		notify_hook(item, name);
+		return (CMD_RETURN_NORMAL);
+	}
 	if (args_has(args, 'u')) {
-		if (cmd != NULL) {
-			cmdq_error(item, "command passed to unset hook: %s",
-			    name);
-			return (CMD_RETURN_ERROR);
-		}
 		hooks_remove(hooks, name);
 		return (CMD_RETURN_NORMAL);
 	}
 
 	if (cmd == NULL) {
-		cmdq_error(item, "no command to set hook: %s", name);
+		cmdq_error(item, "no command given");
 		return (CMD_RETURN_ERROR);
 	}
 	cmdlist = cmd_string_parse(cmd, NULL, 0, &cause);

cmd-set-option.c

@@ -18,6 +18,7 @@
 
 #include <sys/types.h>
 
+#include <fnmatch.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ -80,6 +81,7 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 	char				*name, *argument, *value = NULL, *cause;
 	const char			*target;
 	int				 window, idx, already, error, ambiguous;
+	struct style			*sy;
 
 	/* Expand argument. */
 	c = cmd_find_client(item, NULL, 1);
@@ -162,11 +164,9 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 	parent = options_get(oo, name);
 
 	/* Check that array options and indexes match up. */
-	if (idx != -1) {
+	if (idx != -1 && (*name == '@' || !options_isarray(parent))) {
-		if (*name == '@' || options_array_size(parent, NULL) == -1) {
+		cmdq_error(item, "not an array: %s", argument);
-			cmdq_error(item, "not an array: %s", argument);
+		goto fail;
-			goto fail;
-		}
 	}
 
 	/* With -o, check this option is not already set. */
@@ -208,7 +208,7 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 			goto fail;
 		}
 		options_set_string(oo, name, append, "%s", value);
-	} else if (idx == -1 && options_array_size(parent, NULL) == -1) {
+	} else if (idx == -1 && !options_isarray(parent)) {
 		error = cmd_set_option_set(self, item, oo, parent, value);
 		if (error != 0)
 			goto fail;
@@ -248,6 +248,16 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 				tty_keys_build(&loop->tty);
 		}
 	}
+	if (strcmp(name, "status-fg") == 0 || strcmp(name, "status-bg") == 0) {
+		sy = options_get_style(oo, "status-style");
+		sy->gc.fg = options_get_number(oo, "status-fg");
+		sy->gc.bg = options_get_number(oo, "status-bg");
+	}
+	if (strcmp(name, "status-style") == 0) {
+		sy = options_get_style(oo, "status-style");
+		options_set_number(oo, "status-fg", sy->gc.fg);
+		options_set_number(oo, "status-bg", sy->gc.bg);
+	}
 	if (strcmp(name, "status") == 0 ||
 	    strcmp(name, "status-interval") == 0)
 		status_timer_start_all();
@@ -260,10 +270,10 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 	}
 	if (strcmp(name, "pane-border-status") == 0) {
 		RB_FOREACH(w, windows, &windows)
-			layout_fix_panes(w, w->sx, w->sy);
+			layout_fix_panes(w);
 	}
 	RB_FOREACH(s, sessions, &sessions)
-		status_update_saved(s);
+		status_update_cache(s);
 
 	/*
 	 * Update sizes and redraw. May not always be necessary but do it
@@ -297,7 +307,8 @@ cmd_set_option_set(struct cmd *self, struct cmdq_item *item, struct options *oo,
 	int					 append = args_has(args, 'a');
 	struct options_entry			*o;
 	long long				 number;
-	const char				*errstr;
+	const char				*errstr, *new;
+	char					*old;
 	key_code				 key;
 
 	oe = options_table_entry(parent);
@@ -310,7 +321,16 @@ cmd_set_option_set(struct cmd *self, struct cmdq_item *item, struct options *oo,
 
 	switch (oe->type) {
 	case OPTIONS_TABLE_STRING:
+		old = xstrdup(options_get_string(oo, oe->name));
 		options_set_string(oo, oe->name, append, "%s", value);
+		new = options_get_string(oo, oe->name);
+		if (oe->pattern != NULL && fnmatch(oe->pattern, new, 0) != 0) {
+			options_set_string(oo, oe->name, 0, "%s", old);
+			free(old);
+			cmdq_error(item, "value is invalid: %s", value);
+			return (-1);
+		}
+		free(old);
 		return (0);
 	case OPTIONS_TABLE_NUMBER:
 		number = strtonum(value, oe->minimum, oe->maximum, &errstr);
@@ -333,16 +353,7 @@ cmd_set_option_set(struct cmd *self, struct cmdq_item *item, struct options *oo,
 			cmdq_error(item, "bad colour: %s", value);
 			return (-1);
 		}
-		o = options_set_number(oo, oe->name, number);
+		options_set_number(oo, oe->name, number);
-		options_style_update_new(oo, o);
-		return (0);
-	case OPTIONS_TABLE_ATTRIBUTES:
-		if ((number = attributes_fromstring(value)) == -1) {
-			cmdq_error(item, "bad attributes: %s", value);
-			return (-1);
-		}
-		o = options_set_number(oo, oe->name, number);
-		options_style_update_new(oo, o);
 		return (0);
 	case OPTIONS_TABLE_FLAG:
 		return (cmd_set_option_flag(item, oe, oo, value));
@@ -354,7 +365,6 @@ cmd_set_option_set(struct cmd *self, struct cmdq_item *item, struct options *oo,
 			cmdq_error(item, "bad style: %s", value);
 			return (-1);
 		}
-		options_style_update_old(oo, o);
 		return (0);
 	case OPTIONS_TABLE_ARRAY:
 		break;

cmd-show-messages.c

@@ -43,7 +43,6 @@ const struct cmd_entry cmd_show_messages_entry = {
 };
 
 static int	cmd_show_messages_terminals(struct cmdq_item *, int);
-static int	cmd_show_messages_jobs(struct cmdq_item *, int);
 
 static int
 cmd_show_messages_terminals(struct cmdq_item *item, int blank)
@@ -66,25 +65,6 @@ cmd_show_messages_terminals(struct cmdq_item *item, int blank)
 	return (n != 0);
 }
 
-static int
-cmd_show_messages_jobs(struct cmdq_item *item, int blank)
-{
-	struct job	*job;
-	u_int		 n;
-
-	n = 0;
-	LIST_FOREACH(job, &all_jobs, entry) {
-		if (blank) {
-			cmdq_print(item, "%s", "");
-			blank = 0;
-		}
-		cmdq_print(item, "Job %u: %s [fd=%d, pid=%ld, status=%d]",
-		    n, job->cmd, job->fd, (long)job->pid, job->status);
-		n++;
-	}
-	return (n != 0);
-}
-
 static enum cmd_retval
 cmd_show_messages_exec(struct cmd *self, struct cmdq_item *item)
 {
@@ -103,7 +83,7 @@ cmd_show_messages_exec(struct cmd *self, struct cmdq_item *item)
 		done = 1;
 	}
 	if (args_has(args, 'J')) {
-		cmd_show_messages_jobs(item, blank);
+		job_print_summary(item, blank);
 		done = 1;
 	}
 	if (done)

cmd-show-options.c

@@ -88,20 +88,20 @@ static void
 cmd_show_options_print(struct cmd *self, struct cmdq_item *item,
     struct options_entry *o, int idx)
 {
-	const char	*name;
+	struct options_array_item	*a;
-	const char	*value;
+	const char			*name, *value;
-	char		*tmp, *escaped;
+	char				*tmp, *escaped;
-	u_int		 size, i;
 
 	if (idx != -1) {
 		xasprintf(&tmp, "%s[%d]", options_name(o), idx);
 		name = tmp;
 	} else {
-		if (options_array_size(o, &size) != -1) {
+		if (options_isarray(o)) {
-			for (i = 0; i < size; i++) {
+			a = options_array_first(o);
-				if (options_array_get(o, i) == NULL)
+			while (a != NULL) {
-					continue;
+				idx = options_array_item_index(a);
-				cmd_show_options_print(self, item, o, i);
+				cmd_show_options_print(self, item, o, idx);
+				a = options_array_next(a);
 			}
 			return;
 		}
@@ -164,24 +164,22 @@ static enum cmd_retval
 cmd_show_options_all(struct cmd *self, struct cmdq_item *item,
     struct options *oo)
 {
-	struct options_entry			 *o;
+	struct options_entry			*o;
 	const struct options_table_entry	*oe;
-	u_int					 size, idx;
+	struct options_array_item		*a;
+	u_int					 idx;
 
 	o = options_first(oo);
 	while (o != NULL) {
 		oe = options_table_entry(o);
-		if (oe != NULL && oe->style != NULL) {
+		if (!options_isarray(o))
-			o = options_next(o);
-			continue;
-		}
-		if (options_array_size(o, &size) == -1)
 			cmd_show_options_print(self, item, o, -1);
 		else {
-			for (idx = 0; idx < size; idx++) {
+			a = options_array_first(o);
-				if (options_array_get(o, idx) == NULL)
+			while (a != NULL) {
-					continue;
+				idx = options_array_item_index(a);
 				cmd_show_options_print(self, item, o, idx);
+				a = options_array_next(a);
 			}
 		}
 		o = options_next(o);

cmd-source-file.c

@@ -60,7 +60,7 @@ cmd_source_file_exec(struct cmd *self, struct cmdq_item *item)
 	if (*path == '/')
 		pattern = xstrdup(path);
 	else {
-		utf8_stravis(&tmp, server_client_get_cwd(c), VIS_GLOB);
+		utf8_stravis(&tmp, server_client_get_cwd(c, NULL), VIS_GLOB);
 		xasprintf(&pattern, "%s/%s", tmp, path);
 		free(tmp);
 	}

cmd-split-window.c

@@ -87,10 +87,8 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 
 	if ((tmp = args_get(args, 'c')) != NULL)
 		cwd = format_single(item, tmp, c, s, NULL, NULL);
-	else if (item->client != NULL && item->client->session == NULL)
-		cwd = xstrdup(item->client->cwd);
 	else
-		cwd = xstrdup(s->cwd);
+		cwd = xstrdup(server_client_get_cwd(item->client, s));
 
 	type = LAYOUT_TOPBOTTOM;
 	if (args_has(args, 'h'))
@@ -149,7 +147,7 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 	}
 	environ_free(env);
 
-	layout_fix_panes(w, w->sx, w->sy);
+	layout_fix_panes(w);
 	server_redraw_window(w);
 
 	if (!args_has(args, 'd')) {

cmd-string.c

@@ -54,6 +54,22 @@ cmd_string_ungetc(size_t *p)
 	(*p)--;
 }
 
+static int
+cmd_string_unicode(wchar_t *wc, const char *s, size_t *p, char ch)
+{
+	int	size = (ch == 'u') ? 4 : 8;
+	u_int	tmp;
+
+	if (size == 4 && sscanf(s + *p, "%4x", &tmp) != 1)
+		return (-1);
+	if (size == 8 && sscanf(s + *p, "%8x", &tmp) != 1)
+		return (-1);
+	*p += size;
+
+	*wc = (wchar_t)tmp;
+	return (0);
+}
+
 int
 cmd_string_split(const char *s, int *rargc, char ***rargv)
 {
@@ -191,12 +207,11 @@ cmd_string_copy(char **dst, char *src, size_t *len)
 static char *
 cmd_string_string(const char *s, size_t *p, char endch, int esc)
 {
-	int	ch;
+	int			ch;
-	char   *buf, *t;
+	wchar_t			wc;
-	size_t	len;
+	struct utf8_data	ud;
-
+	char		       *buf = NULL, *t;
-	buf = NULL;
+	size_t			len = 0;
-	len = 0;
 
 	while ((ch = cmd_string_getc(s, p)) != endch) {
 		switch (ch) {
@@ -220,6 +235,18 @@ cmd_string_string(const char *s, size_t *p, char endch, int esc)
 			case 't':
 				ch = '\t';
 				break;
+			case 'u':
+			case 'U':
+				if (cmd_string_unicode(&wc, s, p, ch) != 0)
+					goto error;
+				if (utf8_split(wc, &ud) != UTF8_DONE)
+					goto error;
+				if (len >= SIZE_MAX - ud.size - 1)
+					goto error;
+				buf = xrealloc(buf, len + ud.size);
+				memcpy(buf + len, ud.data, ud.size);
+				len += ud.size;
+				continue;
 			}
 			break;
 		case '$':

cmd-swap-pane.c

@@ -105,8 +105,6 @@ cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
 			window_set_active_pane(dst_w, src_wp);
 		} else {
 			tmp_wp = dst_wp;
-			if (!window_pane_visible(tmp_wp))
-				tmp_wp = src_wp;
 			window_set_active_pane(src_w, tmp_wp);
 		}
 	} else {

cmd-switch-client.c

@@ -113,8 +113,11 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 		if (item->client == NULL)
 			return (CMD_RETURN_NORMAL);
 		if (wl != NULL) {
-			if (wp != NULL)
+			server_unzoom_window(wl->window);
+			if (wp != NULL) {
+				window_redraw_active_switch(wp->window, wp);
 				window_set_active_pane(wp->window, wp);
+			}
 			session_set_current(s, wl);
 			cmd_find_from_session(&item->shared->current, s, 0);
 		}
@@ -128,6 +131,7 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 	c->session = s;
 	if (~item->shared->flags & CMDQ_SHARED_REPEAT)
 		server_client_set_key_table(c, NULL);
+	tty_update_client_offset(c);
 	status_timer_start(c);
 	notify_client("client-session-changed", c);
 	session_update_activity(s, NULL);

cmd-wait-for.c

@@ -170,7 +170,7 @@ cmd_wait_for_wait(struct cmdq_item *item, const char *name,
 	struct client		*c = item->client;
 	struct wait_item	*wi;
 
-	if (c == NULL || c->session != NULL) {
+	if (c == NULL) {
 		cmdq_error(item, "not able to wait");
 		return (CMD_RETURN_ERROR);
 	}
@@ -198,7 +198,7 @@ cmd_wait_for_lock(struct cmdq_item *item, const char *name,
 {
 	struct wait_item	*wi;
 
-	if (item->client == NULL || item->client->session != NULL) {
+	if (item->client == NULL) {
 		cmdq_error(item, "not able to lock");
 		return (CMD_RETURN_ERROR);
 	}

cmd.c

@@ -80,6 +80,7 @@ extern const struct cmd_entry cmd_refresh_client_entry;
 extern const struct cmd_entry cmd_rename_session_entry;
 extern const struct cmd_entry cmd_rename_window_entry;
 extern const struct cmd_entry cmd_resize_pane_entry;
+extern const struct cmd_entry cmd_resize_window_entry;
 extern const struct cmd_entry cmd_respawn_pane_entry;
 extern const struct cmd_entry cmd_respawn_window_entry;
 extern const struct cmd_entry cmd_rotate_window_entry;
@@ -166,6 +167,7 @@ const struct cmd_entry *cmd_table[] = {
 	&cmd_rename_session_entry,
 	&cmd_rename_window_entry,
 	&cmd_resize_pane_entry,
+	&cmd_resize_window_entry,
 	&cmd_respawn_pane_entry,
 	&cmd_respawn_window_entry,
 	&cmd_rotate_window_entry,
@@ -200,6 +202,15 @@ const struct cmd_entry *cmd_table[] = {
 	NULL
 };
 
+void
+cmd_log_argv(int argc, char **argv, const char *prefix)
+{
+	int	i;
+
+	for (i = 0; i < argc; i++)
+		log_debug("%s: argv[%d]=%s", prefix, i, argv[i]);
+}
+
 int
 cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
 {
@@ -208,6 +219,7 @@ cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
 
 	if (argc == 0)
 		return (0);
+	cmd_log_argv(argc, argv, __func__);
 
 	*buf = '\0';
 	for (i = 0; i < argc; i++) {
@@ -240,9 +252,11 @@ cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
 
 		arglen = strlen(buf) + 1;
 		(*argv)[i] = xstrdup(buf);
+
 		buf += arglen;
 		len -= arglen;
 	}
+	cmd_log_argv(argc, *argv, __func__);
 
 	return (0);
 }
@@ -304,31 +318,31 @@ cmd_stringify_argv(int argc, char **argv)
 static int
 cmd_try_alias(int *argc, char ***argv)
 {
-	struct options_entry	 *o;
+	struct options_entry		 *o;
-	int			  old_argc = *argc, new_argc;
+	struct options_array_item	 *a;
-	char			**old_argv = *argv, **new_argv;
+	int				  old_argc = *argc, new_argc, i;
-	u_int			  size, idx;
+	char				**old_argv = *argv, **new_argv;
-	int			  i;
+	size_t				  wanted;
-	size_t			  wanted;
+	const char			 *s, *cp = NULL;
-	const char		 *s, *cp = NULL;
 
 	o = options_get_only(global_options, "command-alias");
-	if (o == NULL || options_array_size(o, &size) == -1 || size == 0)
+	if (o == NULL)
 		return (-1);
-
 	wanted = strlen(old_argv[0]);
-	for (idx = 0; idx < size; idx++) {
-		s = options_array_get(o, idx);
-		if (s == NULL)
-			continue;
 
-		cp = strchr(s, '=');
+	a = options_array_first(o);
-		if (cp == NULL || (size_t)(cp - s) != wanted)
+	while (a != NULL) {
-			continue;
+		s = options_array_item_value(a);
-		if (strncmp(old_argv[0], s, wanted) == 0)
+		if (s != NULL) {
-			break;
+			cp = strchr(s, '=');
+			if (cp != NULL &&
+			    (size_t)(cp - s) == wanted &&
+			    strncmp(old_argv[0], s, wanted) == 0)
+				break;
+		}
+		a = options_array_next(a);
 	}
-	if (idx == size)
+	if (a == NULL)
 		return (-1);
 
 	if (cmd_string_split(cp + 1, &new_argc, &new_argv) != 0)
@@ -401,6 +415,7 @@ retry:
 		xasprintf(cause, "unknown command: %s", name);
 		return (NULL);
 	}
+	cmd_log_argv(argc, argv, entry->name);
 
 	args = args_parse(entry->args.template, argc, argv);
 	if (args == NULL)

colour.c

@@ -141,6 +141,8 @@ colour_tostring(int c)
 		return ("white");
 	case 8:
 		return ("default");
+	case 9:
+		return ("terminal");
 	case 90:
 		return ("brightblack");
 	case 91:
@@ -158,7 +160,7 @@ colour_tostring(int c)
 	case 97:
 		return ("brightwhite");
 	}
-	return (NULL);
+	return ("invalid");
 }
 
 /* Convert colour from string. */
@@ -188,6 +190,11 @@ colour_fromstring(const char *s)
 		return (n | COLOUR_FLAG_256);
 	}
 
+	if (strcasecmp(s, "default") == 0)
+		return (8);
+	if (strcasecmp(s, "terminal") == 0)
+		return (9);
+
 	if (strcasecmp(s, "black") == 0 || strcmp(s, "0") == 0)
 		return (0);
 	if (strcasecmp(s, "red") == 0 || strcmp(s, "1") == 0)
@@ -204,8 +211,6 @@ colour_fromstring(const char *s)
 		return (6);
 	if (strcasecmp(s, "white") == 0 || strcmp(s, "7") == 0)
 		return (7);
-	if (strcasecmp(s, "default") == 0 || strcmp(s, "8") == 0)
-		return (8);
 	if (strcasecmp(s, "brightblack") == 0 || strcmp(s, "90") == 0)
 		return (90);
 	if (strcasecmp(s, "brightred") == 0 || strcmp(s, "91") == 0)

compat/imsg-buffer.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg-buffer.c,v 1.10 2017/04/11 09:57:19 reyk Exp $	*/
+/*	$OpenBSD: imsg-buffer.c,v 1.11 2017/12/14 09:27:44 kettenis Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -29,9 +29,9 @@
 #include "compat.h"
 #include "imsg.h"
 
-int	ibuf_realloc(struct ibuf *, size_t);
+static int	ibuf_realloc(struct ibuf *, size_t);
-void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
+static void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
-void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
+static void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
 
 struct ibuf *
 ibuf_open(size_t len)
@@ -67,7 +67,7 @@ ibuf_dynamic(size_t len, size_t max)
 	return (buf);
 }
 
-int
+static int
 ibuf_realloc(struct ibuf *buf, size_t len)
 {
 	u_char	*b;
@@ -289,14 +289,14 @@ again:
 	return (1);
 }
 
-void
+static void
 ibuf_enqueue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_INSERT_TAIL(&msgbuf->bufs, buf, entry);
 	msgbuf->queued++;
 }
 
-void
+static void
 ibuf_dequeue(struct msgbuf *msgbuf, struct ibuf *buf)
 {
 	TAILQ_REMOVE(&msgbuf->bufs, buf, entry);

compat/imsg.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: imsg.c,v 1.15 2017/04/11 09:57:19 reyk Exp $	*/
+/*	$OpenBSD: imsg.c,v 1.16 2017/12/14 09:27:44 kettenis Exp $	*/
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -30,7 +30,7 @@
 
 int	 imsg_fd_overhead = 0;
 
-int	 imsg_get_fd(struct imsgbuf *);
+static int	 imsg_get_fd(struct imsgbuf *);
 
 void
 imsg_init(struct imsgbuf *ibuf, int fd)
@@ -266,7 +266,7 @@ imsg_free(struct imsg *imsg)
 	freezero(imsg->data, imsg->hdr.len - IMSG_HEADER_SIZE);
 }
 
-int
+static int
 imsg_get_fd(struct imsgbuf *ibuf)
 {
 	int		 fd;

configure.ac

@@ -1,6 +1,6 @@
 # configure.ac
 
-AC_INIT(tmux, 2.7-rc)
+AC_INIT([tmux], 2.9)
 AC_PREREQ([2.60])
 
 AC_CONFIG_AUX_DIR(etc)
@@ -35,7 +35,7 @@ AC_USE_SYSTEM_EXTENSIONS
 test "$sysconfdir" = '${prefix}/etc' && sysconfdir=/etc
 
 # Is this --enable-debug?
-test "x$VERSION" = xmaster && enable_debug=yes
+case "x$VERSION" in xnext*) enable_debug=yes;; esac
 AC_ARG_ENABLE(
 	debug,
 	AC_HELP_STRING(--enable-debug, enable debug build flags),
@@ -478,6 +478,9 @@ if test "x$found_forkpty" = xyes; then
 fi
 AM_CONDITIONAL(NEED_FORKPTY, test "x$found_forkpty" = xno)
 
+# Look for kinfo_getfile in libutil.
+AC_SEARCH_LIBS(kinfo_getfile, [util util-freebsd])
+
 # Look for a suitable queue.h.
 AC_CHECK_DECL(
 	TAILQ_CONCAT,
@@ -610,7 +613,16 @@ case "$host_os" in
 	*solaris*)
 		AC_MSG_RESULT(sunos)
 		PLATFORM=sunos
-		MANFORMAT=man
+		case `/usr/bin/nroff --version 2>&1` in
+			*GNU*)
+				# Solaris 11.4 and later use GNU groff.
+				MANFORMAT=mdoc
+				;;
+			*)
+				# Solaris 2.0 to 11.3 use AT&T nroff.
+				MANFORMAT=man
+				;;
+		esac
 		;;
 	*hpux*)
 		AC_MSG_RESULT(hpux)

control-notify.c

@@ -47,6 +47,8 @@ control_notify_input(struct client *c, struct window_pane *wp,
 	 */
 	if (winlink_find_by_window(&c->session->windows, wp->window) != NULL) {
 		message = evbuffer_new();
+		if (message == NULL)
+			fatalx("out of memory");
 		evbuffer_add_printf(message, "%%output %%%u ", wp->id);
 		for (i = 0; i < len; i++) {
 			if (buf[i] < ' ' || buf[i] == '\\')

environ.c

@@ -174,22 +174,26 @@ environ_unset(struct environ *env, const char *name)
 void
 environ_update(struct options *oo, struct environ *src, struct environ *dst)
 {
-	struct environ_entry	*envent;
+	struct environ_entry		*envent;
-	struct options_entry	*o;
+	struct options_entry		*o;
-	u_int			 size, idx;
+	struct options_array_item	*a;
-	const char		*value;
+	const char			*value;
 
 	o = options_get(oo, "update-environment");
-	if (o == NULL || options_array_size(o, &size) == -1)
+	if (o == NULL)
 		return;
-	for (idx = 0; idx < size; idx++) {
+	a = options_array_first(o);
-		value = options_array_get(o, idx);
+	while (a != NULL) {
-		if (value == NULL)
+		value = options_array_item_value(a);
+		if (value == NULL) {
+			a = options_array_next(a);
 			continue;
+		}
 		if ((envent = environ_find(src, value)) == NULL)
 			environ_clear(dst, value);
 		else
 			environ_set(dst, envent->name, "%s", envent->value);
+		a = options_array_next(a);
 	}
 }
 

example_tmux.conf

@@ -49,11 +49,15 @@ bind F10 selectw -t:19
 bind F11 selectw -t:20
 bind F12 selectw -t:21
 
-# Keys to toggle monitoring activity in a window, and synchronize-panes
+# A key to toggle between smallest and largest sizes if a window is visible in
+# multiple places
+bind F set -w window-size
+
+# Keys to toggle monitoring activity in a window and the synchronize-panes option
 bind m set monitor-activity
 bind y set synchronize-panes\; display 'synchronize-panes #{?synchronize-panes,on,off}'
 
-# Create a single default session, because a session is created here, tmux
+# Create a single default session - because a session is created here, tmux
 # should be started with "tmux attach" rather than "tmux new"
 new -d -s0 -nirssi 'exec irssi'
 set -t0:0 monitor-activity on

format-draw.c

@@ -0,0 +1,892 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2019 Nicholas Marriott <nicholas.marriott@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "tmux.h"
+
+/* Format range. */
+struct format_range {
+	u_int				 index;
+	struct screen			*s;
+
+	u_int				 start;
+	u_int				 end;
+
+	enum style_range_type		 type;
+	u_int				 argument;
+
+	TAILQ_ENTRY(format_range)	 entry;
+};
+TAILQ_HEAD(format_ranges, format_range);
+
+/* Does this range match this style? */
+static int
+format_is_type(struct format_range *fr, struct style *sy)
+{
+	if (fr->type != sy->range_type)
+		return (0);
+	if (fr->type == STYLE_RANGE_WINDOW &&
+	    fr->argument != sy->range_argument)
+		return (0);
+	return (1);
+}
+
+/* Free a range. */
+static void
+format_free_range(struct format_ranges *frs, struct format_range *fr)
+{
+	TAILQ_REMOVE(frs, fr, entry);
+	free(fr);
+}
+
+/* Fix range positions. */
+static void
+format_update_ranges(struct format_ranges *frs, struct screen *s, u_int offset,
+    u_int start, u_int width)
+{
+	struct format_range	*fr, *fr1;
+
+	if (frs == NULL)
+		return;
+
+	TAILQ_FOREACH_SAFE(fr, frs, entry, fr1) {
+		if (fr->s != s)
+			continue;
+
+		if (fr->end <= start || fr->start >= start + width) {
+			format_free_range(frs, fr);
+			continue;
+		}
+
+		if (fr->start < start)
+			fr->start = start;
+		if (fr->end > start + width)
+			fr->end = start + width;
+		if (fr->start == fr->end) {
+			format_free_range(frs, fr);
+			continue;
+		}
+
+		fr->start -= start;
+		fr->end -= start;
+
+		fr->start += offset;
+		fr->end += offset;
+	}
+}
+
+/* Draw a part of the format. */
+static void
+format_draw_put(struct screen_write_ctx *octx, u_int ocx, u_int ocy,
+    struct screen *s, struct format_ranges *frs, u_int offset, u_int start,
+    u_int width)
+{
+	/*
+	 * The offset is how far from the cursor on the target screen; start
+	 * and width how much to copy from the source screen.
+	 */
+	screen_write_cursormove(octx, ocx + offset, ocy, 0);
+	screen_write_fast_copy(octx, s, start, 0, width, 1);
+	format_update_ranges(frs, s, offset, start, width);
+}
+
+/* Draw list part of format. */
+static void
+format_draw_put_list(struct screen_write_ctx *octx,
+    u_int ocx, u_int ocy, u_int offset, u_int width, struct screen *list,
+    struct screen *list_left, struct screen *list_right, int focus_start,
+    int focus_end, struct format_ranges *frs)
+{
+	u_int	start, focus_centre;
+
+	/* If there is enough space for the list, draw it entirely. */
+	if (width >= list->cx) {
+		format_draw_put(octx, ocx, ocy, list, frs, offset, 0, width);
+		return;
+	}
+
+	/* The list needs to be trimmed. Try to keep the focus visible. */
+	focus_centre = focus_start + (focus_end - focus_start) / 2;
+	if (focus_centre < width / 2)
+		start = 0;
+	else
+		start = focus_centre - width / 2;
+	if (start + width > list->cx)
+		start = list->cx - width;
+
+	/* Draw <> markers at either side if needed. */
+	if (start != 0 && width > list_left->cx) {
+		screen_write_cursormove(octx, ocx + offset, ocy, 0);
+		screen_write_fast_copy(octx, list_left, 0, 0, list_left->cx, 1);
+		offset += list_left->cx;
+		start += list_left->cx;
+		width -= list_left->cx;
+	}
+	if (start + width < list->cx && width > list_right->cx) {
+		screen_write_cursormove(octx, ocx + offset + width - 1, ocy, 0);
+		screen_write_fast_copy(octx, list_right, 0, 0, list_right->cx,
+		    1);
+		width -= list_right->cx;
+	}
+
+	/* Draw the list screen itself. */
+	format_draw_put(octx, ocx, ocy, list, frs, offset, start, width);
+}
+
+/* Draw format with no list. */
+static void
+format_draw_none(struct screen_write_ctx *octx, u_int available, u_int ocx,
+    u_int ocy, struct screen *left, struct screen *centre, struct screen *right,
+    struct format_ranges *frs)
+{
+	u_int	width_left, width_centre, width_right;
+
+	width_left = left->cx;
+	width_centre = centre->cx;
+	width_right = right->cx;
+
+	/*
+	 * Try to keep as much of the left and right as possible at the expense
+	 * of the centre.
+	 */
+	while (width_left + width_centre + width_right > available) {
+		if (width_centre > 0)
+			width_centre--;
+		else if (width_right > 0)
+			width_right--;
+		else
+			width_left--;
+	}
+
+	/* Write left. */
+	format_draw_put(octx, ocx, ocy, left, frs, 0, 0, width_left);
+
+	/* Write right at available - width_right. */
+	format_draw_put(octx, ocx, ocy, right, frs,
+	    available - width_right,
+	    right->cx - width_right,
+	    width_right);
+
+	/*
+	 * Write centre halfway between
+	 *     width_left
+	 * and
+	 *     available - width_right.
+	 */
+	format_draw_put(octx, ocx, ocy, centre, frs,
+	    width_left
+	    + ((available - width_right) - width_left) / 2
+	    - width_centre / 2,
+	    centre->cx / 2 - width_centre / 2,
+	    width_centre);
+}
+
+/* Draw format with list on the left. */
+static void
+format_draw_left(struct screen_write_ctx *octx, u_int available, u_int ocx,
+    u_int ocy, struct screen *left, struct screen *centre, struct screen *right,
+    struct screen *list, struct screen *list_left, struct screen *list_right,
+    struct screen *after, int focus_start, int focus_end,
+    struct format_ranges *frs)
+{
+	u_int			width_left, width_centre, width_right;
+	u_int			width_list, width_after;
+	struct screen_write_ctx	ctx;
+
+	width_left = left->cx;
+	width_centre = centre->cx;
+	width_right = right->cx;
+	width_list = list->cx;
+	width_after = after->cx;
+
+	/*
+	 * Trim first the centre, then the list, then the right, then after the
+	 * list, then the left.
+	 */
+	while (width_left +
+	    width_centre +
+	    width_right +
+	    width_list +
+	    width_after > available) {
+		if (width_centre > 0)
+			width_centre--;
+		else if (width_list > 0)
+			width_list--;
+		else if (width_right > 0)
+			width_right--;
+		else if (width_after > 0)
+			width_after--;
+		else
+			width_left--;
+	}
+
+	/* If there is no list left, pass off to the no list function. */
+	if (width_list == 0) {
+		screen_write_start(&ctx, NULL, left);
+		screen_write_fast_copy(&ctx, after, 0, 0, width_after, 1);
+		screen_write_stop(&ctx);
+
+		format_draw_none(octx, available, ocx, ocy, left, centre,
+		    right, frs);
+		return;
+	}
+
+	/* Write left at 0. */
+	format_draw_put(octx, ocx, ocy, left, frs, 0, 0, width_left);
+
+	/* Write right at available - width_right. */
+	format_draw_put(octx, ocx, ocy, right, frs,
+	    available - width_right,
+	    right->cx - width_right,
+	    width_right);
+
+	/* Write after at width_left + width_list. */
+	format_draw_put(octx, ocx, ocy, after, frs,
+	    width_left + width_list,
+	    0,
+	    width_after);
+
+	/*
+	 * Write centre halfway between
+	 *     width_left + width_list + width_after
+	 * and
+	 *     available - width_right.
+	 */
+	format_draw_put(octx, ocx, ocy, centre, frs,
+	    (width_left + width_list + width_after)
+	    + ((available - width_right)
+		- (width_left + width_list + width_after)) / 2
+	    - width_centre / 2,
+	    centre->cx / 2 - width_centre / 2,
+	    width_centre);
+
+	/*
+	 * The list now goes from
+	 *     width_left
+	 * to
+	 *     width_left + width_list.
+	 * If there is no focus given, keep the left in focus.
+	 */
+	if (focus_start == -1 || focus_end == -1)
+		focus_start = focus_end = 0;
+	format_draw_put_list(octx, ocx, ocy, width_left, width_list, list,
+	    list_left, list_right, focus_start, focus_end, frs);
+}
+
+/* Draw format with list in the centre. */
+static void
+format_draw_centre(struct screen_write_ctx *octx, u_int available, u_int ocx,
+    u_int ocy, struct screen *left, struct screen *centre, struct screen *right,
+    struct screen *list, struct screen *list_left, struct screen *list_right,
+    struct screen *after, int focus_start, int focus_end,
+    struct format_ranges *frs)
+{
+	u_int			width_left, width_centre, width_right;
+	u_int			width_list, width_after, middle;
+	struct screen_write_ctx	ctx;
+
+	width_left = left->cx;
+	width_centre = centre->cx;
+	width_right = right->cx;
+	width_list = list->cx;
+	width_after = after->cx;
+
+	/*
+	 * Trim first the list, then after the list, then the centre, then the
+	 * right, then the left.
+	 */
+	while (width_left +
+	    width_centre +
+	    width_right +
+	    width_list +
+	    width_after > available) {
+		if (width_list > 0)
+			width_list--;
+		else if (width_after > 0)
+			width_after--;
+		else if (width_centre > 0)
+			width_centre--;
+		else if (width_right > 0)
+			width_right--;
+		else
+			width_left--;
+	}
+
+	/* If there is no list left, pass off to the no list function. */
+	if (width_list == 0) {
+		screen_write_start(&ctx, NULL, centre);
+		screen_write_fast_copy(&ctx, after, 0, 0, width_after, 1);
+		screen_write_stop(&ctx);
+
+		format_draw_none(octx, available, ocx, ocy, left, centre,
+		    right, frs);
+		return;
+	}
+
+	/* Write left at 0. */
+	format_draw_put(octx, ocx, ocy, left, frs, 0, 0, width_left);
+
+	/* Write after at available - width_after. */
+	format_draw_put(octx, ocx, ocy, after, frs,
+	    available - width_after,
+	    after->cx - width_after,
+	    width_after);
+
+	/* Write right at available - width_right. */
+	format_draw_put(octx, ocx, ocy, right, frs,
+	    available - width_right,
+	    right->cx - width_right,
+	    width_right);
+
+	/*
+	 * All three centre sections are offset from the middle of the
+	 * available space.
+	 */
+	middle = (width_left + ((available - width_right) - width_left) / 2);
+
+	/*
+	 * Write centre at
+	 *     middle - width_list / 2 - width_centre.
+	 */
+	format_draw_put(octx, ocx, ocy, centre, frs,
+	    middle - width_list / 2 - width_centre,
+	    0,
+	    width_centre);
+
+	/*
+	 * Write after at
+	 *     middle + width_list / 2 - width_centre.
+	 */
+	format_draw_put(octx, ocx, ocy, after, frs,
+	    middle + width_list / 2,
+	    0,
+	    width_after);
+
+	/*
+	 * The list now goes from
+	 *     middle - width_list / 2
+	 * to
+	 *     middle + width_list / 2
+	 * If there is no focus given, keep the centre in focus.
+	 */
+	if (focus_start == -1 || focus_end == -1)
+		focus_start = focus_end = list->cx / 2;
+	format_draw_put_list(octx, ocx, ocy, middle - width_list / 2,
+	    width_list, list, list_left, list_right, focus_start, focus_end,
+	    frs);
+}
+
+/* Draw format with list on the right. */
+static void
+format_draw_right(struct screen_write_ctx *octx, u_int available, u_int ocx,
+    u_int ocy, struct screen *left, struct screen *centre, struct screen *right,
+    struct screen *list, struct screen *list_left, struct screen *list_right,
+    struct screen *after, int focus_start, int focus_end,
+    struct format_ranges *frs)
+{
+	u_int			width_left, width_centre, width_right;
+	u_int			width_list, width_after;
+	struct screen_write_ctx	ctx;
+
+	width_left = left->cx;
+	width_centre = centre->cx;
+	width_right = right->cx;
+	width_list = list->cx;
+	width_after = after->cx;
+
+	/*
+	 * Trim first the centre, then the list, then the right, then
+	 * after the list, then the left.
+	 */
+	while (width_left +
+	    width_centre +
+	    width_right +
+	    width_list +
+	    width_after > available) {
+		if (width_centre > 0)
+			width_centre--;
+		else if (width_list > 0)
+			width_list--;
+		else if (width_right > 0)
+			width_right--;
+		else if (width_after > 0)
+			width_after--;
+		else
+			width_left--;
+	}
+
+	/* If there is no list left, pass off to the no list function. */
+	if (width_list == 0) {
+		screen_write_start(&ctx, NULL, right);
+		screen_write_fast_copy(&ctx, after, 0, 0, width_after, 1);
+		screen_write_stop(&ctx);
+
+		format_draw_none(octx, available, ocx, ocy, left, centre,
+		    right, frs);
+		return;
+	}
+
+	/* Write left at 0. */
+	format_draw_put(octx, ocx, ocy, left, frs, 0, 0, width_left);
+
+	/* Write after at available - width_after. */
+	format_draw_put(octx, ocx, ocy, after, frs,
+	    available - width_after,
+	    after->cx - width_after,
+	    width_after);
+
+	/*
+	 * Write right at
+	 *     available - width_right - width_list - width_after.
+	 */
+	format_draw_put(octx, ocx, ocy, right, frs,
+	    available - width_right - width_list - width_after,
+	    0,
+	    width_right);
+
+	/*
+	 * Write centre halfway between
+	 *     width_left
+	 * and
+	 *     available - width_right - width_list - width_after.
+	 */
+	format_draw_put(octx, ocx, ocy, centre, frs,
+	    width_left
+	    + ((available - width_right - width_list - width_after)
+		- width_left) / 2
+	    - width_centre / 2,
+	    centre->cx / 2 - width_centre / 2,
+	    width_centre);
+
+	/*
+	 * The list now goes from
+	 *     available - width_list - width_after
+	 * to
+	 *     available - width_after
+	 * If there is no focus given, keep the right in focus.
+	 */
+	if (focus_start == -1 || focus_end == -1)
+		focus_start = focus_end = 0;
+	format_draw_put_list(octx, ocx, ocy, available - width_list -
+	    width_after, width_list, list, list_left, list_right, focus_start,
+	    focus_end, frs);
+}
+
+/* Draw a format to a screen. */
+void
+format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
+    u_int available, const char *expanded, struct style_ranges *srs)
+{
+	enum { LEFT,
+	       CENTRE,
+	       RIGHT,
+	       LIST,
+	       LIST_LEFT,
+	       LIST_RIGHT,
+	       AFTER,
+	       TOTAL } current = LEFT, last = LEFT;
+	const char	        *names[] = { "LEFT",
+					     "CENTRE",
+					     "RIGHT",
+					     "LIST",
+					     "LIST_LEFT",
+					     "LIST_RIGHT",
+					     "AFTER" };
+	size_t			 size = strlen(expanded);
+	struct screen		*os = octx->s, s[TOTAL];
+	struct screen_write_ctx	 ctx[TOTAL];
+	u_int			 ocx = os->cx, ocy = os->cy, i, width[TOTAL];
+	u_int			 map[] = { LEFT, LEFT, CENTRE, RIGHT };
+	int			 focus_start = -1, focus_end = -1;
+	int			 list_state = -1;
+	enum style_align	 list_align = STYLE_ALIGN_DEFAULT;
+	struct style		 sy;
+	struct utf8_data	*ud = &sy.gc.data;
+	const char		*cp, *end;
+	enum utf8_state		 more;
+	char			*tmp;
+	struct format_range	*fr = NULL, *fr1;
+	struct format_ranges	 frs;
+	struct style_range	*sr;
+
+	style_set(&sy, base);
+	TAILQ_INIT(&frs);
+	log_debug("%s: %s", __func__, expanded);
+
+	/*
+	 * We build three screens for left, right, centre alignment, one for
+	 * the list, one for anything after the list and two for the list left
+	 * and right markers.
+	 */
+	for (i = 0; i < TOTAL; i++) {
+		screen_init(&s[i], size, 1, 0);
+		screen_write_start(&ctx[i], NULL, &s[i]);
+		screen_write_clearendofline(&ctx[i], base->bg);
+		width[i] = 0;
+	}
+
+	/*
+	 * Walk the string and add to the corresponding screens,
+	 * parsing styles as we go.
+	 */
+	cp = expanded;
+	while (*cp != '\0') {
+		if (cp[0] != '#' || cp[1] != '[') {
+			/* See if this is a UTF-8 character. */
+			if ((more = utf8_open(ud, *cp)) == UTF8_MORE) {
+				while (*++cp != '\0' && more == UTF8_MORE)
+					more = utf8_append(ud, *cp);
+				if (more != UTF8_DONE)
+					cp -= ud->have;
+			}
+
+			/* Not a UTF-8 character - ASCII or not valid. */
+			if (more != UTF8_DONE) {
+				if (*cp < 0x20 || *cp > 0x7e) {
+					/* Ignore nonprintable characters. */
+					cp++;
+					continue;
+				}
+				utf8_set(ud, *cp);
+				cp++;
+			}
+
+			/* Draw the cell to th current screen. */
+			screen_write_cell(&ctx[current], &sy.gc);
+			width[current] += ud->width;
+			continue;
+		}
+
+		/* This is a style. Work out where the end is and parse it. */
+		end = format_skip(cp + 2, "]");
+		if (end == NULL) {
+			log_debug("%s: no terminating ] at '%s'", __func__,
+			    cp + 2);
+			TAILQ_FOREACH_SAFE(fr, &frs, entry, fr1)
+			    format_free_range(&frs, fr);
+			goto out;
+		}
+		tmp = xstrndup(cp + 2, end - (cp + 2));
+		if (style_parse(&sy, base, tmp) != 0) {
+			log_debug("%s: invalid style '%s'", __func__, tmp);
+			free(tmp);
+			cp = end + 1;
+			continue;
+		}
+		log_debug("%s: style '%s' -> '%s'", __func__, tmp,
+		    style_tostring(&sy));
+		free(tmp);
+
+		/* Check the list state. */
+		switch (sy.list) {
+		case STYLE_LIST_ON:
+			/*
+			 * Entering the list, exiting a marker, or exiting the
+			 * focus.
+			 */
+			if (list_state != 0) {
+				if (fr != NULL) { /* abort any region */
+					free(fr);
+					fr = NULL;
+				}
+				list_state = 0;
+				list_align = sy.align;
+			}
+
+			/* End the focus if started. */
+			if (focus_start != -1 && focus_end == -1)
+				focus_end = s[LIST].cx;
+
+			current = LIST;
+			break;
+		case STYLE_LIST_FOCUS:
+			/* Entering the focus. */
+			if (list_state != 0) /* not inside the list */
+				break;
+			if (focus_start == -1) /* focus already started */
+				focus_start = s[LIST].cx;
+			break;
+		case STYLE_LIST_OFF:
+			/* Exiting or outside the list. */
+			if (list_state == 0) {
+				if (fr != NULL) { /* abort any region */
+					free(fr);
+					fr = NULL;
+				}
+				if (focus_start != -1 && focus_end == -1)
+					focus_end = s[LIST].cx;
+
+				map[list_align] = AFTER;
+				if (list_align == STYLE_ALIGN_LEFT)
+					map[STYLE_ALIGN_DEFAULT] = AFTER;
+				list_state = 1;
+			}
+			current = map[sy.align];
+			break;
+		case STYLE_LIST_LEFT_MARKER:
+			/* Entering left marker. */
+			if (list_state != 0) /* not inside the list */
+				break;
+			if (s[LIST_LEFT].cx != 0) /* already have marker */
+				break;
+			if (fr != NULL) { /* abort any region */
+				free(fr);
+				fr = NULL;
+			}
+			if (focus_start != -1 && focus_end == -1)
+				focus_start = focus_end = -1;
+			current = LIST_LEFT;
+			break;
+		case STYLE_LIST_RIGHT_MARKER:
+			/* Entering right marker. */
+			if (list_state != 0) /* not inside the list */
+				break;
+			if (s[LIST_RIGHT].cx != 0) /* already have marker */
+				break;
+			if (fr != NULL) { /* abort any region */
+				free(fr);
+				fr = NULL;
+			}
+			if (focus_start != -1 && focus_end == -1)
+				focus_start = focus_end = -1;
+			current = LIST_RIGHT;
+			break;
+		}
+		if (current != last) {
+			log_debug("%s: change %s -> %s", __func__,
+			    names[last], names[current]);
+			last = current;
+		}
+
+		/*
+		 * Check if the range style has changed and if so end the
+		 * current range and start a new one if needed.
+		 */
+		if (srs != NULL) {
+			if (fr != NULL && !format_is_type(fr, &sy)) {
+				if (s[current].cx != fr->start) {
+					fr->end = s[current].cx + 1;
+					TAILQ_INSERT_TAIL(&frs, fr, entry);
+				} else
+					free(fr);
+				fr = NULL;
+			}
+			if (fr == NULL && sy.range_type != STYLE_RANGE_NONE) {
+				fr = xcalloc(1, sizeof *fr);
+				fr->index = current;
+
+				fr->s = &s[current];
+				fr->start = s[current].cx;
+
+				fr->type = sy.range_type;
+				fr->argument = sy.range_argument;
+			}
+		}
+
+		cp = end + 1;
+	}
+	free(fr);
+
+	for (i = 0; i < TOTAL; i++) {
+		screen_write_stop(&ctx[i]);
+		log_debug("%s: width %s is %u", __func__, names[i], width[i]);
+	}
+	if (focus_start != -1 && focus_end != -1)
+		log_debug("%s: focus %d-%d", __func__, focus_start, focus_end);
+	TAILQ_FOREACH(fr, &frs, entry) {
+		log_debug("%s: range %d|%u is %s %u-%u", __func__, fr->type,
+		    fr->argument, names[fr->index], fr->start, fr->end);
+	}
+
+	/*
+	 * Draw the screens. How they are arranged depends on where the list
+	 * appearsq.
+	 */
+	switch (list_align) {
+	case STYLE_ALIGN_DEFAULT:
+		/* No list. */
+		format_draw_none(octx, available, ocx, ocy, &s[LEFT],
+		    &s[CENTRE], &s[RIGHT], &frs);
+		break;
+	case STYLE_ALIGN_LEFT:
+		/* List is part of the left. */
+		format_draw_left(octx, available, ocx, ocy, &s[LEFT],
+		    &s[CENTRE], &s[RIGHT], &s[LIST], &s[LIST_LEFT],
+		    &s[LIST_RIGHT], &s[AFTER], focus_start, focus_end, &frs);
+		break;
+	case STYLE_ALIGN_CENTRE:
+		/* List is part of the centre. */
+		format_draw_centre(octx, available, ocx, ocy, &s[LEFT],
+		    &s[CENTRE], &s[RIGHT], &s[LIST], &s[LIST_LEFT],
+		    &s[LIST_RIGHT], &s[AFTER], focus_start, focus_end, &frs);
+		break;
+	case STYLE_ALIGN_RIGHT:
+		/* List is part of the right. */
+		format_draw_right(octx, available, ocx, ocy, &s[LEFT],
+		    &s[CENTRE], &s[RIGHT], &s[LIST], &s[LIST_LEFT],
+		    &s[LIST_RIGHT], &s[AFTER], focus_start, focus_end, &frs);
+		break;
+	}
+
+	/* Create ranges to return. */
+	TAILQ_FOREACH_SAFE(fr, &frs, entry, fr1) {
+		sr = xcalloc(1, sizeof *sr);
+		sr->type = fr->type;
+		sr->argument = fr->argument;
+		sr->start = fr->start;
+		sr->end = fr->end;
+		TAILQ_INSERT_TAIL(srs, sr, entry);
+
+		log_debug("%s: range %d|%u at %u-%u", __func__, sr->type,
+		    sr->argument, sr->start, sr->end);
+
+		format_free_range(&frs, fr);
+	}
+
+out:
+	/* Free the screens. */
+	for (i = 0; i < TOTAL; i++)
+		screen_free(&s[i]);
+
+	/* Restore the original cursor position. */
+	screen_write_cursormove(octx, ocx, ocy, 0);
+}
+
+/* Get width, taking #[] into account. */
+u_int
+format_width(const char *expanded)
+{
+	const char		*cp, *end;
+	u_int			 width = 0;
+	struct utf8_data	 ud;
+	enum utf8_state		 more;
+
+	cp = expanded;
+	while (*cp != '\0') {
+		if (cp[0] == '#' && cp[1] == '[') {
+			end = format_skip(cp + 2, "]");
+			if (end == NULL)
+				return 0;
+			cp = end + 1;
+		} else if ((more = utf8_open(&ud, *cp)) == UTF8_MORE) {
+			while (*++cp != '\0' && more == UTF8_MORE)
+				more = utf8_append(&ud, *cp);
+			if (more == UTF8_DONE)
+				width += ud.width;
+			else
+				cp -= ud.have;
+		} else if (*cp > 0x1f && *cp < 0x7f) {
+			width++;
+			cp++;
+		}
+	}
+	return (width);
+}
+
+/* Trim on the left, taking #[] into account. */
+char *
+format_trim_left(const char *expanded, u_int limit)
+{
+	char			*copy, *out;
+	const char		*cp = expanded, *end;
+	u_int			 width = 0;
+	struct utf8_data	 ud;
+	enum utf8_state		 more;
+
+	out = copy = xmalloc(strlen(expanded) + 1);
+	while (*cp != '\0') {
+		if (cp[0] == '#' && cp[1] == '[') {
+			end = format_skip(cp + 2, "]");
+			if (end == NULL)
+				break;
+			memcpy(out, cp, end + 1 - cp);
+			out += (end + 1 - cp);
+			cp = end + 1;
+		} else if ((more = utf8_open(&ud, *cp)) == UTF8_MORE) {
+			while (*++cp != '\0' && more == UTF8_MORE)
+				more = utf8_append(&ud, *cp);
+			if (more == UTF8_DONE) {
+				if (width + ud.width <= limit) {
+					memcpy(out, ud.data, ud.size);
+					out += ud.size;
+				}
+				width += ud.width;
+			} else
+				cp -= ud.have;
+		} else if (*cp > 0x1f && *cp < 0x7f) {
+			if (width + 1 <= limit)
+				*out++ = *cp;
+			width++;
+			cp++;
+		} else
+			cp++;
+	}
+	*out = '\0';
+	return (copy);
+}
+
+/* Trim on the right, taking #[] into account. */
+char *
+format_trim_right(const char *expanded, u_int limit)
+{
+	char			*copy, *out;
+	const char		*cp = expanded, *end;
+	u_int			 width = 0, total_width, skip;
+	struct utf8_data	 ud;
+	enum utf8_state		 more;
+
+	total_width = format_width(expanded);
+	if (total_width <= limit)
+		return (xstrdup(expanded));
+	skip = total_width - limit;
+
+	out = copy = xmalloc(strlen(expanded) + 1);
+	while (*cp != '\0') {
+		if (cp[0] == '#' && cp[1] == '[') {
+			end = format_skip(cp + 2, "]");
+			if (end == NULL)
+				break;
+			memcpy(out, cp, end + 1 - cp);
+			out += (end + 1 - cp);
+			cp = end + 1;
+		} else if ((more = utf8_open(&ud, *cp)) == UTF8_MORE) {
+			while (*++cp != '\0' && more == UTF8_MORE)
+				more = utf8_append(&ud, *cp);
+			if (more == UTF8_DONE) {
+				if (width >= skip) {
+					memcpy(out, ud.data, ud.size);
+					out += ud.size;
+				}
+				width += ud.width;
+			} else
+				cp -= ud.have;
+		} else if (*cp > 0x1f && *cp < 0x7f) {
+			if (width >= skip)
+				*out++ = *cp;
+			width++;
+			cp++;
+		} else
+			cp++;
+	}
+	*out = '\0';
+	return (copy);
+}

grid-view.c

@@ -64,7 +64,7 @@ grid_view_clear_history(struct grid *gd, u_int bg)
 	/* Find the last used line. */
 	last = 0;
 	for (yy = 0; yy < gd->sy; yy++) {
-		gl = &gd->linedata[grid_view_y(gd, yy)];
+		gl = grid_get_line(gd, grid_view_y(gd, yy));
 		if (gl->cellused != 0)
 			last = yy + 1;
 	}

grid.c

@@ -39,8 +39,13 @@
 const struct grid_cell grid_default_cell = {
 	0, 0, 8, 8, { { ' ' }, 0, 1, 1 }
 };
-static const struct grid_cell_entry grid_default_entry = {
+
-	0, { .data = { 0, 8, 8, ' ' } }
+/* Cleared grid cell data. */
+const struct grid_cell grid_cleared_cell = {
+	GRID_FLAG_CLEARED, 0, 8, 8, { { ' ' }, 0, 1, 1 }
+};
+static const struct grid_cell_entry grid_cleared_entry = {
+	GRID_FLAG_CLEARED, { .data = { 0, 8, 8, ' ' } }
 };
 
 static void	grid_empty_line(struct grid *, u_int, u_int);
@@ -50,7 +55,7 @@ static void
 grid_store_cell(struct grid_cell_entry *gce, const struct grid_cell *gc,
     u_char c)
 {
-	gce->flags = gc->flags;
+	gce->flags = (gc->flags & ~GRID_FLAG_CLEARED);
 
 	gce->data.fg = gc->fg & 0xff;
 	if (gc->fg & COLOUR_FLAG_256)
@@ -64,7 +69,7 @@ grid_store_cell(struct grid_cell_entry *gce, const struct grid_cell *gc,
 	gce->data.data = c;
 }
 
-/* Check if a cell should be extended. */
+/* Check if a cell should be an extended cell. */
 static int
 grid_need_extended_cell(const struct grid_cell_entry *gce,
     const struct grid_cell *gc)
@@ -80,6 +85,40 @@ grid_need_extended_cell(const struct grid_cell_entry *gce,
 	return (0);
 }
 
+/* Get an extended cell. */
+static void
+grid_get_extended_cell(struct grid_line *gl, struct grid_cell_entry *gce,
+    int flags)
+{
+	u_int at = gl->extdsize + 1;
+
+	gl->extddata = xreallocarray(gl->extddata, at, sizeof *gl->extddata);
+	gl->extdsize = at;
+
+	gce->offset = at - 1;
+	gce->flags = (flags | GRID_FLAG_EXTENDED);
+}
+
+/* Set cell as extended. */
+static struct grid_cell *
+grid_extended_cell(struct grid_line *gl, struct grid_cell_entry *gce,
+    const struct grid_cell *gc)
+{
+	struct grid_cell	*gcp;
+	int			 flags = (gc->flags & ~GRID_FLAG_CLEARED);
+
+	if (~gce->flags & GRID_FLAG_EXTENDED)
+		grid_get_extended_cell(gl, gce, flags);
+	else if (gce->offset >= gl->extdsize)
+		fatalx("offset too big");
+	gl->flags |= GRID_LINE_EXTENDED;
+
+	gcp = &gl->extddata[gce->offset];
+	memcpy(gcp, gc, sizeof *gcp);
+	gcp->flags = flags;
+	return (gcp);
+}
+
 /* Free up unused extended cells. */
 static void
 grid_compact_line(struct grid_line *gl)
@@ -122,27 +161,18 @@ grid_compact_line(struct grid_line *gl)
 	gl->extdsize = new_extdsize;
 }
 
-/* Set cell as extended. */
+/* Get line data. */
-static struct grid_cell *
+struct grid_line *
-grid_extended_cell(struct grid_line *gl, struct grid_cell_entry *gce,
+grid_get_line(struct grid *gd, u_int line)
-    const struct grid_cell *gc)
 {
-	struct grid_cell	*gcp;
+	return (&gd->linedata[line]);
+}
 
-	gl->flags |= GRID_LINE_EXTENDED;
+/* Adjust number of lines. */
-
+void
-	if (~gce->flags & GRID_FLAG_EXTENDED) {
+grid_adjust_lines(struct grid *gd, u_int lines)
-		gl->extddata = xreallocarray(gl->extddata, gl->extdsize + 1,
+{
-		    sizeof *gl->extddata);
+	gd->linedata = xreallocarray(gd->linedata, lines, sizeof *gd->linedata);
-		gce->offset = gl->extdsize++;
-		gce->flags = gc->flags | GRID_FLAG_EXTENDED;
-	}
-	if (gce->offset >= gl->extdsize)
-		fatalx("offset too big");
-
-	gcp = &gl->extddata[gce->offset];
-	memcpy(gcp, gc, sizeof *gcp);
-	return (gcp);
 }
 
 /* Copy default into a cell. */
@@ -153,9 +183,13 @@ grid_clear_cell(struct grid *gd, u_int px, u_int py, u_int bg)
 	struct grid_cell_entry	*gce = &gl->celldata[px];
 	struct grid_cell	*gc;
 
-	memcpy(gce, &grid_default_entry, sizeof *gce);
+	memcpy(gce, &grid_cleared_entry, sizeof *gce);
 	if (bg & COLOUR_FLAG_RGB) {
-		gc = grid_extended_cell(gl, gce, &grid_default_cell);
+		grid_get_extended_cell(gl, gce, gce->flags);
+		gl->flags |= GRID_LINE_EXTENDED;
+
+		gc = &gl->extddata[gce->offset];
+		memcpy(gc, &grid_cleared_cell, sizeof *gc);
 		gc->bg = bg;
 	} else {
 		if (bg & COLOUR_FLAG_256)
@@ -166,10 +200,10 @@ grid_clear_cell(struct grid *gd, u_int px, u_int py, u_int bg)
 
 /* Check grid y position. */
 static int
-grid_check_y(struct grid *gd, u_int py)
+grid_check_y(struct grid *gd, const char* from, u_int py)
 {
 	if (py >= gd->hsize + gd->sy) {
-		log_debug("y out of range: %u", py);
+		log_debug("%s: y out of range: %u", from, py);
 		return (-1);
 	}
 	return (0);
@@ -272,6 +306,15 @@ grid_compare(struct grid *ga, struct grid *gb)
 	return (0);
 }
 
+/* Trim lines from the history. */
+static void
+grid_trim_history(struct grid *gd, u_int ny)
+{
+	grid_free_lines(gd, 0, ny);
+	memmove(&gd->linedata[0], &gd->linedata[ny],
+	    (gd->hsize + gd->sy - ny) * (sizeof *gd->linedata));
+}
+
 /*
  * Collect lines from the history if at the limit. Free the top (oldest) 10%
  * and shift up.
@@ -294,9 +337,7 @@ grid_collect_history(struct grid *gd)
 	 * Free the lines from 0 to ny then move the remaining lines over
 	 * them.
 	 */
-	grid_free_lines(gd, 0, ny);
+	grid_trim_history(gd, ny);
-	memmove(&gd->linedata[0], &gd->linedata[ny],
-	    (gd->hsize + gd->sy - ny) * (sizeof *gd->linedata));
 
 	gd->hsize -= ny;
 	if (gd->hscrolled > gd->hsize)
@@ -326,9 +367,7 @@ grid_scroll_history(struct grid *gd, u_int bg)
 void
 grid_clear_history(struct grid *gd)
 {
-	grid_free_lines(gd, 0, gd->hsize);
+	grid_trim_history(gd, gd->hsize);
-	memmove(&gd->linedata[0], &gd->linedata[gd->hsize],
-	    gd->sy * (sizeof *gd->linedata));
 
 	gd->hscrolled = 0;
 	gd->hsize = 0;
@@ -399,7 +438,7 @@ static void
 grid_empty_line(struct grid *gd, u_int py, u_int bg)
 {
 	memset(&gd->linedata[py], 0, sizeof gd->linedata[py]);
-	if (bg != 8)
+	if (!COLOUR_DEFAULT(bg))
 		grid_expand_line(gd, py, gd->sx, bg);
 }
 
@@ -407,7 +446,7 @@ grid_empty_line(struct grid *gd, u_int py, u_int bg)
 const struct grid_line *
 grid_peek_line(struct grid *gd, u_int py)
 {
-	if (grid_check_y(gd, py) != 0)
+	if (grid_check_y(gd, __func__, py) != 0)
 		return (NULL);
 	return (&gd->linedata[py]);
 }
@@ -441,11 +480,11 @@ grid_get_cell1(struct grid_line *gl, u_int px, struct grid_cell *gc)
 void
 grid_get_cell(struct grid *gd, u_int px, u_int py, struct grid_cell *gc)
 {
-	if (grid_check_y(gd, py) != 0 || px >= gd->linedata[py].cellsize) {
+	if (grid_check_y(gd, __func__, py) != 0 ||
+	    px >= gd->linedata[py].cellsize)
 		memcpy(gc, &grid_default_cell, sizeof *gc);
-		return;
+	else
-	}
+		grid_get_cell1(&gd->linedata[py], px, gc);
-	return (grid_get_cell1(&gd->linedata[py], px, gc));
 }
 
 /* Set cell at relative position. */
@@ -455,7 +494,7 @@ grid_set_cell(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc)
 	struct grid_line	*gl;
 	struct grid_cell_entry	*gce;
 
-	if (grid_check_y(gd, py) != 0)
+	if (grid_check_y(gd, __func__, py) != 0)
 		return;
 
 	grid_expand_line(gd, py, px + 1, 8);
@@ -481,7 +520,7 @@ grid_set_cells(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc,
 	struct grid_cell	*gcp;
 	u_int			 i;
 
-	if (grid_check_y(gd, py) != 0)
+	if (grid_check_y(gd, __func__, py) != 0)
 		return;
 
 	grid_expand_line(gd, py, px + slen, 8);
@@ -504,7 +543,8 @@ grid_set_cells(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc,
 void
 grid_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny, u_int bg)
 {
-	u_int	xx, yy;
+	struct grid_line	*gl;
+	u_int			 xx, yy;
 
 	if (nx == 0 || ny == 0)
 		return;
@@ -514,18 +554,19 @@ grid_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny, u_int bg)
 		return;
 	}
 
-	if (grid_check_y(gd, py) != 0)
+	if (grid_check_y(gd, __func__, py) != 0)
 		return;
-	if (grid_check_y(gd, py + ny - 1) != 0)
+	if (grid_check_y(gd, __func__, py + ny - 1) != 0)
 		return;
 
 	for (yy = py; yy < py + ny; yy++) {
-		if (px + nx >= gd->sx && px < gd->linedata[yy].cellused)
+		gl = &gd->linedata[yy];
-			gd->linedata[yy].cellused = px;
+		if (px + nx >= gd->sx && px < gl->cellused)
-		if (px > gd->linedata[yy].cellsize && bg == 8)
+			gl->cellused = px;
+		if (px > gl->cellsize && COLOUR_DEFAULT(bg))
 			continue;
-		if (px + nx >= gd->linedata[yy].cellsize && bg == 8) {
+		if (px + nx >= gl->cellsize && COLOUR_DEFAULT(bg)) {
-			gd->linedata[yy].cellsize = px;
+			gl->cellsize = px;
 			continue;
 		}
 		grid_expand_line(gd, yy, px + nx, 8); /* default bg first */
@@ -543,9 +584,9 @@ grid_clear_lines(struct grid *gd, u_int py, u_int ny, u_int bg)
 	if (ny == 0)
 		return;
 
-	if (grid_check_y(gd, py) != 0)
+	if (grid_check_y(gd, __func__, py) != 0)
 		return;
-	if (grid_check_y(gd, py + ny - 1) != 0)
+	if (grid_check_y(gd, __func__, py + ny - 1) != 0)
 		return;
 
 	for (yy = py; yy < py + ny; yy++) {
@@ -563,13 +604,13 @@ grid_move_lines(struct grid *gd, u_int dy, u_int py, u_int ny, u_int bg)
 	if (ny == 0 || py == dy)
 		return;
 
-	if (grid_check_y(gd, py) != 0)
+	if (grid_check_y(gd, __func__, py) != 0)
 		return;
-	if (grid_check_y(gd, py + ny - 1) != 0)
+	if (grid_check_y(gd, __func__, py + ny - 1) != 0)
 		return;
-	if (grid_check_y(gd, dy) != 0)
+	if (grid_check_y(gd, __func__, dy) != 0)
 		return;
-	if (grid_check_y(gd, dy + ny - 1) != 0)
+	if (grid_check_y(gd, __func__, dy + ny - 1) != 0)
 		return;
 
 	/* Free any lines which are being replaced. */
@@ -603,7 +644,7 @@ grid_move_cells(struct grid *gd, u_int dx, u_int px, u_int py, u_int nx,
 	if (nx == 0 || px == dx)
 		return;
 
-	if (grid_check_y(gd, py) != 0)
+	if (grid_check_y(gd, __func__, py) != 0)
 		return;
 	gl = &gd->linedata[py];
 
@@ -744,7 +785,11 @@ grid_string_cells_code(const struct grid_cell *lastgc,
 		{ GRID_ATTR_BLINK, 5 },
 		{ GRID_ATTR_REVERSE, 7 },
 		{ GRID_ATTR_HIDDEN, 8 },
-		{ GRID_ATTR_STRIKETHROUGH, 9 }
+		{ GRID_ATTR_STRIKETHROUGH, 9 },
+		{ GRID_ATTR_UNDERSCORE_2, 42 },
+		{ GRID_ATTR_UNDERSCORE_3, 43 },
+		{ GRID_ATTR_UNDERSCORE_4, 44 },
+		{ GRID_ATTR_UNDERSCORE_5, 45 },
 	};
 	n = 0;
 
@@ -770,11 +815,15 @@ grid_string_cells_code(const struct grid_cell *lastgc,
 		else
 			strlcat(buf, "\033[", len);
 		for (i = 0; i < n; i++) {
-			if (i + 1 < n)
+			if (s[i] < 10)
-				xsnprintf(tmp, sizeof tmp, "%d;", s[i]);
-			else
 				xsnprintf(tmp, sizeof tmp, "%d", s[i]);
+			else {
+				xsnprintf(tmp, sizeof tmp, "%d:%d", s[i] / 10,
+				    s[i] % 10);
+			}
 			strlcat(buf, tmp, len);
+			if (i + 1 < n)
+				strlcat(buf, ";", len);
 		}
 		strlcat(buf, "m", len);
 	}
@@ -981,11 +1030,11 @@ grid_reflow_move(struct grid *gd, struct grid_line *from)
 /* Join line below onto this one. */
 static void
 grid_reflow_join(struct grid *target, struct grid *gd, u_int sx, u_int yy,
-    u_int width, u_int *cy, int already)
+    u_int width, int already)
 {
-	struct grid_line	*gl, *from;
+	struct grid_line	*gl, *from = NULL;
 	struct grid_cell	 gc;
-	u_int			 lines, want, left, i, to, line;
+	u_int			 lines, left, i, to, line, want = 0;
 	u_int			 at;
 	int			 wrapped = 1;
 
@@ -1010,7 +1059,7 @@ grid_reflow_join(struct grid *target, struct grid *gd, u_int sx, u_int yy,
 		 * If this is now the last line, there is nothing more to be
 		 * done.
 		 */
-		if (yy + lines == gd->hsize + gd->sy)
+		if (yy + 1 + lines == gd->hsize + gd->sy)
 			break;
 		line = yy + 1 + lines;
 
@@ -1020,6 +1069,7 @@ grid_reflow_join(struct grid *target, struct grid *gd, u_int sx, u_int yy,
 		if (gd->linedata[line].cellused == 0) {
 			if (!wrapped)
 				break;
+			lines++;
 			continue;
 		}
 
@@ -1078,11 +1128,7 @@ grid_reflow_join(struct grid *target, struct grid *gd, u_int sx, u_int yy,
 		grid_reflow_dead(&gd->linedata[i]);
 	}
 
-	/* Adjust cursor and scroll positions. */
+	/* Adjust scroll position. */
-	if (*cy > to + lines)
-		*cy -= lines;
-	else if (*cy > to)
-		*cy = to;
 	if (gd->hscrolled > to + lines)
 		gd->hscrolled -= lines;
 	else if (gd->hscrolled > to)
@@ -1092,7 +1138,7 @@ grid_reflow_join(struct grid *target, struct grid *gd, u_int sx, u_int yy,
 /* Split this line into several new ones */
 static void
 grid_reflow_split(struct grid *target, struct grid *gd, u_int sx, u_int yy,
-    u_int at, u_int *cy)
+    u_int at)
 {
 	struct grid_line	*gl = &gd->linedata[yy], *first;
 	struct grid_cell	 gc;
@@ -1145,9 +1191,7 @@ grid_reflow_split(struct grid *target, struct grid *gd, u_int sx, u_int yy,
 	memcpy(first, gl, sizeof *first);
 	grid_reflow_dead(gl);
 
-	/* Adjust the cursor and scroll positions. */
+	/* Adjust the scroll position. */
-	if (yy <= *cy)
-		(*cy) += lines - 1;
 	if (yy <= gd->hscrolled)
 		gd->hscrolled += lines - 1;
 
@@ -1156,24 +1200,17 @@ grid_reflow_split(struct grid *target, struct grid *gd, u_int sx, u_int yy,
 	 * in the last new line, try to join with the next lines.
 	 */
 	if (width < sx && (flags & GRID_LINE_WRAPPED))
-		grid_reflow_join(target, gd, sx, yy, width, cy, 1);
+		grid_reflow_join(target, gd, sx, yy, width, 1);
 }
 
 /* Reflow lines on grid to new width. */
 void
-grid_reflow(struct grid *gd, u_int sx, u_int *cursor)
+grid_reflow(struct grid *gd, u_int sx)
 {
 	struct grid		*target;
 	struct grid_line	*gl;
 	struct grid_cell	 gc;
-	u_int			 yy, cy, width, i, at, first;
+	u_int			 yy, width, i, at, first;
-	struct timeval		 start, tv;
-
-	gettimeofday(&start, NULL);
-
-	log_debug("%s: %u lines, new width %u", __func__, gd->hsize + gd->sy,
-	    sx);
-	cy = gd->hsize + (*cursor);
 
 	/*
 	 * Create a destination grid. This is just used as a container for the
@@ -1227,7 +1264,7 @@ grid_reflow(struct grid *gd, u_int sx, u_int *cursor)
 		 * it was previously wrapped.
 		 */
 		if (width > sx) {
-			grid_reflow_split(target, gd, sx, yy, at, &cy);
+			grid_reflow_split(target, gd, sx, yy, at);
 			continue;
 		}
 
@@ -1236,7 +1273,7 @@ grid_reflow(struct grid *gd, u_int sx, u_int *cursor)
 		 * of the next line.
 		 */
 		if (gl->flags & GRID_LINE_WRAPPED)
-			grid_reflow_join(target, gd, sx, yy, width, &cy, 0);
+			grid_reflow_join(target, gd, sx, yy, width, 0);
 		else
 			grid_reflow_move(target, gl);
 	}
@@ -1247,23 +1284,68 @@ grid_reflow(struct grid *gd, u_int sx, u_int *cursor)
 	if (target->sy < gd->sy)
 		grid_reflow_add(target, gd->sy - target->sy);
 	gd->hsize = target->sy - gd->sy;
+	if (gd->hscrolled > gd->hsize)
+		gd->hscrolled = gd->hsize;
 	free(gd->linedata);
 	gd->linedata = target->linedata;
 	free(target);
+}
+
+/* Convert to position based on wrapped lines. */
+void
+grid_wrap_position(struct grid *gd, u_int px, u_int py, u_int *wx, u_int *wy)
+{
+	u_int	ax = 0, ay = 0, yy;
+
+	for (yy = 0; yy < py; yy++) {
+		if (gd->linedata[yy].flags & GRID_LINE_WRAPPED)
+			ax += gd->linedata[yy].cellused;
+		else {
+			ax = 0;
+			ay++;
+		}
+	}
+	if (px >= gd->linedata[yy].cellused)
+		ax = UINT_MAX;
+	else
+		ax += px;
+	*wx = ax;
+	*wy = ay;
+}
+
+/* Convert position based on wrapped lines back. */
+void
+grid_unwrap_position(struct grid *gd, u_int *px, u_int *py, u_int wx, u_int wy)
+{
+	u_int	yy, ax = 0, ay = 0;
+
+	for (yy = 0; yy < gd->hsize + gd->sy - 1; yy++) {
+		if (ay == wy)
+			break;
+		if (gd->linedata[yy].flags & GRID_LINE_WRAPPED)
+			ax += gd->linedata[yy].cellused;
+		else {
+			ax = 0;
+			ay++;
+		}
+	}
 
 	/*
-	 * Update scrolled and cursor positions.
+	 * yy is now 0 on the unwrapped line which contains wx. Walk forwards
+	 * until we find the end or the line now containing wx.
 	 */
-	if (gd->hscrolled > gd->hsize)
+	if (wx == UINT_MAX) {
-		gd->hscrolled = gd->hsize;
+		while (gd->linedata[yy].flags & GRID_LINE_WRAPPED)
-	if (cy < gd->hsize)
+			yy++;
-		*cursor = 0;
+		wx = gd->linedata[yy].cellused;
-	else
+	} else {
-		*cursor = cy - gd->hsize;
+		while (gd->linedata[yy].flags & GRID_LINE_WRAPPED) {
-
+			if (wx < gd->linedata[yy].cellused)
-	gettimeofday(&tv, NULL);
+				break;
-	timersub(&tv, &start, &tv);
+			wx -= gd->linedata[yy].cellused;
-	log_debug("%s: now %u lines (in %llu.%06u seconds)", __func__,
+			yy++;
-	    gd->hsize + gd->sy, (unsigned long long)tv.tv_sec,
+		}
-	    (u_int)tv.tv_usec);
+	}
+	*px = wx;
+	*py = yy;
 }

input-keys.c

@@ -247,10 +247,10 @@ input_key_mouse(struct window_pane *wp, struct mouse_event *m)
 
 	if ((mode & ALL_MOUSE_MODES) == 0)
 		return;
-	if (!window_pane_visible(wp))
-		return;
 	if (cmd_mouse_at(wp, m, &x, &y, 0) != 0)
 		return;
+	if (!window_pane_visible(wp))
+		return;
 
 	/* If this pane is not in button or all mode, discard motion events. */
 	if (MOUSE_DRAG(m->b) &&

input.c

@@ -30,7 +30,7 @@
 /*
  * Based on the description by Paul Williams at:
  *
- * http://vt100.net/emu/dec_ansi_parser
+ * https://vt100.net/emu/dec_ansi_parser
  *
  * With the following changes:
  *
@@ -81,6 +81,7 @@ struct input_ctx {
 	struct input_cell	old_cell;
 	u_int 			old_cx;
 	u_int			old_cy;
+	int			old_mode;
 
 	u_char			interm_buf[4];
 	size_t			interm_len;
@@ -93,6 +94,10 @@ struct input_ctx {
 	u_char		       *input_buf;
 	size_t			input_len;
 	size_t			input_space;
+	enum {
+		INPUT_END_ST,
+		INPUT_END_BEL
+	}			input_end;
 
 	struct input_param	param_list[24];
 	u_int			param_list_len;
@@ -126,11 +131,11 @@ static void	input_set_state(struct window_pane *,
 		    const struct input_transition *);
 static void	input_reset_cell(struct input_ctx *);
 
-static void	input_osc_4(struct window_pane *, const char *);
+static void	input_osc_4(struct input_ctx *, const char *);
-static void	input_osc_10(struct window_pane *, const char *);
+static void	input_osc_10(struct input_ctx *, const char *);
-static void	input_osc_11(struct window_pane *, const char *);
+static void	input_osc_11(struct input_ctx *, const char *);
-static void	input_osc_52(struct window_pane *, const char *);
+static void	input_osc_52(struct input_ctx *, const char *);
-static void	input_osc_104(struct window_pane *, const char *);
+static void	input_osc_104(struct input_ctx *, const char *);
 
 /* Transition entry/exit handlers. */
 static void	input_clear(struct input_ctx *);
@@ -161,6 +166,7 @@ static void	input_csi_dispatch_sgr_rgb(struct input_ctx *, int, u_int *);
 static void	input_csi_dispatch_sgr(struct input_ctx *);
 static int	input_dcs_dispatch(struct input_ctx *);
 static int	input_top_bit_set(struct input_ctx *);
+static int	input_end_bel(struct input_ctx *);
 
 /* Command table comparison function. */
 static int	input_table_compare(const void *, const void *);
@@ -266,6 +272,7 @@ static const struct input_table_entry input_csi_table[] = {
 	{ 'S', "",  INPUT_CSI_SU },
 	{ 'X', "",  INPUT_CSI_ECH },
 	{ 'Z', "",  INPUT_CSI_CBT },
+	{ '`', "",  INPUT_CSI_HPA },
 	{ 'b', "",  INPUT_CSI_REP },
 	{ 'c', "",  INPUT_CSI_DA },
 	{ 'c', ">", INPUT_CSI_DA_TWO },
@@ -487,7 +494,7 @@ static const struct input_transition input_state_esc_enter_table[] = {
 	{ -1, -1, NULL, NULL }
 };
 
-/* esc_interm state table. */
+/* esc_intermediate state table. */
 static const struct input_transition input_state_esc_intermediate_table[] = {
 	INPUT_STATE_ANYWHERE,
 
@@ -602,7 +609,7 @@ static const struct input_transition input_state_dcs_parameter_table[] = {
 	{ -1, -1, NULL, NULL }
 };
 
-/* dcs_interm state table. */
+/* dcs_intermediate state table. */
 static const struct input_transition input_state_dcs_intermediate_table[] = {
 	INPUT_STATE_ANYWHERE,
 
@@ -655,12 +662,12 @@ static const struct input_transition input_state_dcs_ignore_table[] = {
 static const struct input_transition input_state_osc_string_table[] = {
 	INPUT_STATE_ANYWHERE,
 
-	{ 0x00, 0x06, NULL,	    NULL },
+	{ 0x00, 0x06, NULL,	     NULL },
-	{ 0x07, 0x07, NULL,	    &input_state_ground },
+	{ 0x07, 0x07, input_end_bel, &input_state_ground },
-	{ 0x08, 0x17, NULL,	    NULL },
+	{ 0x08, 0x17, NULL,	     NULL },
-	{ 0x19, 0x19, NULL,	    NULL },
+	{ 0x19, 0x19, NULL,	     NULL },
-	{ 0x1c, 0x1f, NULL,	    NULL },
+	{ 0x1c, 0x1f, NULL,	     NULL },
-	{ 0x20, 0xff, input_input,  NULL },
+	{ 0x20, 0xff, input_input,   NULL },
 
 	{ -1, -1, NULL, NULL }
 };
@@ -750,6 +757,32 @@ input_reset_cell(struct input_ctx *ictx)
 	ictx->old_cy = 0;
 }
 
+/* Save screen state. */
+static void
+input_save_state(struct input_ctx *ictx)
+{
+	struct screen_write_ctx	*sctx = &ictx->ctx;
+	struct screen		*s = sctx->s;
+
+	memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
+	ictx->old_cx = s->cx;
+	ictx->old_cy = s->cy;
+	ictx->old_mode = s->mode;
+}
+
+static void
+input_restore_state(struct input_ctx *ictx)
+{
+	struct screen_write_ctx	*sctx = &ictx->ctx;
+
+	memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell);
+	if (ictx->old_mode & MODE_ORIGIN)
+		screen_write_mode_set(sctx, MODE_ORIGIN);
+	else
+		screen_write_mode_clear(sctx, MODE_ORIGIN);
+	screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy, 0);
+}
+
 /* Initialise input parser. */
 void
 input_init(struct window_pane *wp)
@@ -762,6 +795,8 @@ input_init(struct window_pane *wp)
 	ictx->input_buf = xmalloc(INPUT_BUF_START);
 
 	ictx->since_ground = evbuffer_new();
+	if (ictx->since_ground == NULL)
+		fatalx("out of memory");
 
 	evtimer_set(&ictx->timer, input_timer_callback, ictx);
 
@@ -794,16 +829,17 @@ void
 input_reset(struct window_pane *wp, int clear)
 {
 	struct input_ctx	*ictx = wp->ictx;
+	struct screen_write_ctx	*sctx = &ictx->ctx;
 
 	input_reset_cell(ictx);
 
 	if (clear) {
-		if (wp->mode == NULL)
+		if (TAILQ_EMPTY(&wp->modes))
-			screen_write_start(&ictx->ctx, wp, &wp->base);
+			screen_write_start(sctx, wp, &wp->base);
 		else
-			screen_write_start(&ictx->ctx, NULL, &wp->base);
+			screen_write_start(sctx, NULL, &wp->base);
-		screen_write_reset(&ictx->ctx);
+		screen_write_reset(sctx);
-		screen_write_stop(&ictx->ctx);
+		screen_write_stop(sctx);
 	}
 
 	input_clear(ictx);
@@ -839,6 +875,7 @@ void
 input_parse(struct window_pane *wp)
 {
 	struct input_ctx		*ictx = wp->ictx;
+	struct screen_write_ctx		*sctx = &ictx->ctx;
 	const struct input_transition	*itr;
 	struct evbuffer			*evb = wp->event->input;
 	u_char				*buf;
@@ -854,10 +891,10 @@ input_parse(struct window_pane *wp)
 	 * Open the screen. Use NULL wp if there is a mode set as don't want to
 	 * update the tty.
 	 */
-	if (wp->mode == NULL)
+	if (TAILQ_EMPTY(&wp->modes))
-		screen_write_start(&ictx->ctx, wp, &wp->base);
+		screen_write_start(sctx, wp, &wp->base);
 	else
-		screen_write_start(&ictx->ctx, NULL, &wp->base);
+		screen_write_start(sctx, NULL, &wp->base);
 	ictx->wp = wp;
 
 	buf = EVBUFFER_DATA(evb);
@@ -893,7 +930,7 @@ input_parse(struct window_pane *wp)
 		 * be the minority.
 		 */
 		if (itr->handler != input_print)
-			screen_write_collect_end(&ictx->ctx);
+			screen_write_collect_end(sctx);
 
 		/*
 		 * Execute the handler, if any. Don't switch state if it
@@ -912,7 +949,7 @@ input_parse(struct window_pane *wp)
 	}
 
 	/* Close the screen. */
-	screen_write_stop(&ictx->ctx);
+	screen_write_stop(sctx);
 
 	evbuffer_drain(evb, len);
 }
@@ -993,8 +1030,8 @@ input_get(struct input_ctx *ictx, u_int validx, int minval, int defval)
 static void
 input_reply(struct input_ctx *ictx, const char *fmt, ...)
 {
-	va_list	ap;
+	va_list	 ap;
-	char   *reply;
+	char	*reply;
 
 	va_start(ap, fmt);
 	xvasprintf(&reply, fmt, ap);
@@ -1019,6 +1056,8 @@ input_clear(struct input_ctx *ictx)
 	*ictx->input_buf = '\0';
 	ictx->input_len = 0;
 
+	ictx->input_end = INPUT_END_ST;
+
 	ictx->flags &= ~INPUT_DISCARD;
 }
 
@@ -1039,7 +1078,8 @@ input_ground(struct input_ctx *ictx)
 static int
 input_print(struct input_ctx *ictx)
 {
-	int	set;
+	struct screen_write_ctx	*sctx = &ictx->ctx;
+	int			 set;
 
 	ictx->utf8started = 0; /* can't be valid UTF-8 */
 
@@ -1050,7 +1090,7 @@ input_print(struct input_ctx *ictx)
 		ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET;
 
 	utf8_set(&ictx->cell.cell.data, ictx->ch);
-	screen_write_collect_add(&ictx->ctx, &ictx->cell.cell);
+	screen_write_collect_add(sctx, &ictx->cell.cell);
 	ictx->last = ictx->ch;
 
 	ictx->cell.cell.attr &= ~GRID_ATTR_CHARSET;
@@ -1210,13 +1250,10 @@ input_esc_dispatch(struct input_ctx *ictx)
 		screen_write_mode_clear(sctx, MODE_KKEYPAD);
 		break;
 	case INPUT_ESC_DECSC:
-		memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
+		input_save_state(ictx);
-		ictx->old_cx = s->cx;
-		ictx->old_cy = s->cy;
 		break;
 	case INPUT_ESC_DECRC:
-		memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell);
+		input_restore_state(ictx);
-		screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy);
 		break;
 	case INPUT_ESC_DECALN:
 		screen_write_alignmenttest(sctx);
@@ -1303,7 +1340,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 		n = input_get(ictx, 0, 1, 1);
 		m = input_get(ictx, 1, 1, 1);
 		if (n != -1 && m != -1)
-			screen_write_cursormove(sctx, m - 1, n - 1);
+			screen_write_cursormove(sctx, m - 1, n - 1, 1);
 		break;
 	case INPUT_CSI_WINOPS:
 		input_csi_dispatch_winops(ictx);
@@ -1435,7 +1472,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_HPA:
 		n = input_get(ictx, 0, 1, 1);
 		if (n != -1)
-			screen_write_cursormove(sctx, n - 1, s->cy);
+			screen_write_cursormove(sctx, n - 1, -1, 1);
 		break;
 	case INPUT_CSI_ICH:
 		n = input_get(ictx, 0, 1, 1);
@@ -1460,8 +1497,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 			input_print(ictx);
 		break;
 	case INPUT_CSI_RCP:
-		memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell);
+		input_restore_state(ictx);
-		screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy);
 		break;
 	case INPUT_CSI_RM:
 		input_csi_dispatch_rm(ictx);
@@ -1470,9 +1506,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 		input_csi_dispatch_rm_private(ictx);
 		break;
 	case INPUT_CSI_SCP:
-		memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
+		input_save_state(ictx);
-		ictx->old_cx = s->cx;
-		ictx->old_cy = s->cy;
 		break;
 	case INPUT_CSI_SGR:
 		input_csi_dispatch_sgr(ictx);
@@ -1507,7 +1541,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_VPA:
 		n = input_get(ictx, 0, 1, 1);
 		if (n != -1)
-			screen_write_cursormove(sctx, s->cx, n - 1);
+			screen_write_cursormove(sctx, -1, n - 1, 1);
 		break;
 	case INPUT_CSI_DECSCUSR:
 		n = input_get(ictx, 0, 0, 0);
@@ -1524,17 +1558,18 @@ input_csi_dispatch(struct input_ctx *ictx)
 static void
 input_csi_dispatch_rm(struct input_ctx *ictx)
 {
-	u_int	i;
+	struct screen_write_ctx	*sctx = &ictx->ctx;
+	u_int			 i;
 
 	for (i = 0; i < ictx->param_list_len; i++) {
 		switch (input_get(ictx, i, 0, -1)) {
 		case -1:
 			break;
 		case 4:		/* IRM */
-			screen_write_mode_clear(&ictx->ctx, MODE_INSERT);
+			screen_write_mode_clear(sctx, MODE_INSERT);
 			break;
 		case 34:
-			screen_write_mode_set(&ictx->ctx, MODE_BLINKING);
+			screen_write_mode_set(sctx, MODE_BLINKING);
 			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);
@@ -1547,6 +1582,7 @@ input_csi_dispatch_rm(struct input_ctx *ictx)
 static void
 input_csi_dispatch_rm_private(struct input_ctx *ictx)
 {
+	struct screen_write_ctx	*sctx = &ictx->ctx;
 	struct window_pane	*wp = ictx->wp;
 	u_int			 i;
 
@@ -1555,36 +1591,39 @@ input_csi_dispatch_rm_private(struct input_ctx *ictx)
 		case -1:
 			break;
 		case 1:		/* DECCKM */
-			screen_write_mode_clear(&ictx->ctx, MODE_KCURSOR);
+			screen_write_mode_clear(sctx, MODE_KCURSOR);
 			break;
 		case 3:		/* DECCOLM */
-			screen_write_cursormove(&ictx->ctx, 0, 0);
+			screen_write_cursormove(sctx, 0, 0, 1);
-			screen_write_clearscreen(&ictx->ctx,
+			screen_write_clearscreen(sctx, ictx->cell.cell.bg);
-			    ictx->cell.cell.bg);
+			break;
+		case 6:		/* DECOM */
+			screen_write_mode_clear(sctx, MODE_ORIGIN);
+			screen_write_cursormove(sctx, 0, 0, 1);
 			break;
 		case 7:		/* DECAWM */
-			screen_write_mode_clear(&ictx->ctx, MODE_WRAP);
+			screen_write_mode_clear(sctx, MODE_WRAP);
 			break;
 		case 12:
-			screen_write_mode_clear(&ictx->ctx, MODE_BLINKING);
+			screen_write_mode_clear(sctx, MODE_BLINKING);
 			break;
 		case 25:	/* TCEM */
-			screen_write_mode_clear(&ictx->ctx, MODE_CURSOR);
+			screen_write_mode_clear(sctx, MODE_CURSOR);
 			break;
 		case 1000:
 		case 1001:
 		case 1002:
 		case 1003:
-			screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
+			screen_write_mode_clear(sctx, ALL_MOUSE_MODES);
 			break;
 		case 1004:
-			screen_write_mode_clear(&ictx->ctx, MODE_FOCUSON);
+			screen_write_mode_clear(sctx, MODE_FOCUSON);
 			break;
 		case 1005:
-			screen_write_mode_clear(&ictx->ctx, MODE_MOUSE_UTF8);
+			screen_write_mode_clear(sctx, MODE_MOUSE_UTF8);
 			break;
 		case 1006:
-			screen_write_mode_clear(&ictx->ctx, MODE_MOUSE_SGR);
+			screen_write_mode_clear(sctx, MODE_MOUSE_SGR);
 			break;
 		case 47:
 		case 1047:
@@ -1594,7 +1633,7 @@ input_csi_dispatch_rm_private(struct input_ctx *ictx)
 			window_pane_alternate_off(wp, &ictx->cell.cell, 1);
 			break;
 		case 2004:
-			screen_write_mode_clear(&ictx->ctx, MODE_BRACKETPASTE);
+			screen_write_mode_clear(sctx, MODE_BRACKETPASTE);
 			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);
@@ -1607,17 +1646,18 @@ input_csi_dispatch_rm_private(struct input_ctx *ictx)
 static void
 input_csi_dispatch_sm(struct input_ctx *ictx)
 {
-	u_int	i;
+	struct screen_write_ctx	*sctx = &ictx->ctx;
+	u_int			 i;
 
 	for (i = 0; i < ictx->param_list_len; i++) {
 		switch (input_get(ictx, i, 0, -1)) {
 		case -1:
 			break;
 		case 4:		/* IRM */
-			screen_write_mode_set(&ictx->ctx, MODE_INSERT);
+			screen_write_mode_set(sctx, MODE_INSERT);
 			break;
 		case 34:
-			screen_write_mode_clear(&ictx->ctx, MODE_BLINKING);
+			screen_write_mode_clear(sctx, MODE_BLINKING);
 			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);
@@ -1630,6 +1670,7 @@ input_csi_dispatch_sm(struct input_ctx *ictx)
 static void
 input_csi_dispatch_sm_private(struct input_ctx *ictx)
 {
+	struct screen_write_ctx	*sctx = &ictx->ctx;
 	struct window_pane	*wp = ictx->wp;
 	u_int			 i;
 
@@ -1638,45 +1679,48 @@ input_csi_dispatch_sm_private(struct input_ctx *ictx)
 		case -1:
 			break;
 		case 1:		/* DECCKM */
-			screen_write_mode_set(&ictx->ctx, MODE_KCURSOR);
+			screen_write_mode_set(sctx, MODE_KCURSOR);
 			break;
 		case 3:		/* DECCOLM */
-			screen_write_cursormove(&ictx->ctx, 0, 0);
+			screen_write_cursormove(sctx, 0, 0, 1);
-			screen_write_clearscreen(&ictx->ctx,
+			screen_write_clearscreen(sctx, ictx->cell.cell.bg);
-			    ictx->cell.cell.bg);
+			break;
+		case 6:		/* DECOM */
+			screen_write_mode_set(sctx, MODE_ORIGIN);
+			screen_write_cursormove(sctx, 0, 0, 1);
 			break;
 		case 7:		/* DECAWM */
-			screen_write_mode_set(&ictx->ctx, MODE_WRAP);
+			screen_write_mode_set(sctx, MODE_WRAP);
 			break;
 		case 12:
-			screen_write_mode_set(&ictx->ctx, MODE_BLINKING);
+			screen_write_mode_set(sctx, MODE_BLINKING);
 			break;
 		case 25:	/* TCEM */
-			screen_write_mode_set(&ictx->ctx, MODE_CURSOR);
+			screen_write_mode_set(sctx, MODE_CURSOR);
 			break;
 		case 1000:
-			screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
+			screen_write_mode_clear(sctx, ALL_MOUSE_MODES);
-			screen_write_mode_set(&ictx->ctx, MODE_MOUSE_STANDARD);
+			screen_write_mode_set(sctx, MODE_MOUSE_STANDARD);
 			break;
 		case 1002:
-			screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
+			screen_write_mode_clear(sctx, ALL_MOUSE_MODES);
-			screen_write_mode_set(&ictx->ctx, MODE_MOUSE_BUTTON);
+			screen_write_mode_set(sctx, MODE_MOUSE_BUTTON);
 			break;
 		case 1003:
-			screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
+			screen_write_mode_clear(sctx, ALL_MOUSE_MODES);
-			screen_write_mode_set(&ictx->ctx, MODE_MOUSE_ALL);
+			screen_write_mode_set(sctx, MODE_MOUSE_ALL);
 			break;
 		case 1004:
-			if (ictx->ctx.s->mode & MODE_FOCUSON)
+			if (sctx->s->mode & MODE_FOCUSON)
 				break;
-			screen_write_mode_set(&ictx->ctx, MODE_FOCUSON);
+			screen_write_mode_set(sctx, MODE_FOCUSON);
 			wp->flags |= PANE_FOCUSPUSH; /* force update */
 			break;
 		case 1005:
-			screen_write_mode_set(&ictx->ctx, MODE_MOUSE_UTF8);
+			screen_write_mode_set(sctx, MODE_MOUSE_UTF8);
 			break;
 		case 1006:
-			screen_write_mode_set(&ictx->ctx, MODE_MOUSE_SGR);
+			screen_write_mode_set(sctx, MODE_MOUSE_SGR);
 			break;
 		case 47:
 		case 1047:
@@ -1686,7 +1730,7 @@ input_csi_dispatch_sm_private(struct input_ctx *ictx)
 			window_pane_alternate_on(wp, &ictx->cell.cell, 1);
 			break;
 		case 2004:
-			screen_write_mode_set(&ictx->ctx, MODE_BRACKETPASTE);
+			screen_write_mode_set(sctx, MODE_BRACKETPASTE);
 			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);
@@ -1699,6 +1743,7 @@ input_csi_dispatch_sm_private(struct input_ctx *ictx)
 static void
 input_csi_dispatch_winops(struct input_ctx *ictx)
 {
+	struct screen_write_ctx	*sctx = &ictx->ctx;
 	struct window_pane	*wp = ictx->wp;
 	int			 n, m;
 
@@ -1738,7 +1783,7 @@ input_csi_dispatch_winops(struct input_ctx *ictx)
 				return;
 			case 0:
 			case 2:
-				screen_push_title(ictx->ctx.s);
+				screen_push_title(sctx->s);
 				break;
 			}
 			break;
@@ -1749,7 +1794,7 @@ input_csi_dispatch_winops(struct input_ctx *ictx)
 				return;
 			case 0:
 			case 2:
-				screen_pop_title(ictx->ctx.s);
+				screen_pop_title(sctx->s);
 				server_status_window(ictx->wp->window);
 				break;
 			}
@@ -1834,10 +1879,11 @@ input_csi_dispatch_sgr_rgb(struct input_ctx *ictx, int fgbg, u_int *i)
 static void
 input_csi_dispatch_sgr_colon(struct input_ctx *ictx, u_int i)
 {
-	char		*s = ictx->param_list[i].str, *copy, *ptr, *out;
+	struct grid_cell	*gc = &ictx->cell.cell;
-	int		 p[8];
+	char			*s = ictx->param_list[i].str, *copy, *ptr, *out;
-	u_int		 n;
+	int			 p[8];
-	const char	*errstr;
+	u_int			 n;
+	const char		*errstr;
 
 	for (n = 0; n < nitems(p); n++)
 		p[n] = -1;
@@ -1845,27 +1891,67 @@ input_csi_dispatch_sgr_colon(struct input_ctx *ictx, u_int i)
 
 	ptr = copy = xstrdup(s);
 	while ((out = strsep(&ptr, ":")) != NULL) {
-		p[n++] = strtonum(out, 0, INT_MAX, &errstr);
+		if (*out != '\0') {
-		if (errstr != NULL || n == nitems(p)) {
+			p[n++] = strtonum(out, 0, INT_MAX, &errstr);
-			free(copy);
+			if (errstr != NULL || n == nitems(p)) {
-			return;
+				free(copy);
-		}
+				return;
+			}
+		} else
+			n++;
 		log_debug("%s: %u = %d", __func__, n - 1, p[n - 1]);
 	}
 	free(copy);
 
-	if (n == 0 || (p[0] != 38 && p[0] != 48))
+	if (n == 0)
 		return;
-	switch (p[1]) {
+	if (p[0] == 4) {
-	case 2:
+		if (n != 2)
-		if (n != 5)
+			return;
+		switch (p[1]) {
+		case 0:
+			gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE;
 			break;
-		input_csi_dispatch_sgr_rgb_do(ictx, p[0], p[2], p[3], p[4]);
+		case 1:
+			gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE;
+			gc->attr |= GRID_ATTR_UNDERSCORE;
+			break;
+		case 2:
+			gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE;
+			gc->attr |= GRID_ATTR_UNDERSCORE_2;
+			break;
+		case 3:
+			gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE;
+			gc->attr |= GRID_ATTR_UNDERSCORE_3;
+			break;
+		case 4:
+			gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE;
+			gc->attr |= GRID_ATTR_UNDERSCORE_4;
+			break;
+		case 5:
+			gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE;
+			gc->attr |= GRID_ATTR_UNDERSCORE_5;
+			break;
+		}
+		return;
+	}
+	if (p[0] != 38 && p[0] != 48)
+		return;
+	if (p[1] == -1)
+		i = 2;
+	else
+		i = 1;
+	switch (p[i]) {
+	case 2:
+		if (n < i + 4)
+			break;
+		input_csi_dispatch_sgr_rgb_do(ictx, p[0], p[i + 1], p[i + 2],
+		    p[i + 3]);
 		break;
 	case 5:
-		if (n != 3)
+		if (n < i + 2)
 			break;
-		input_csi_dispatch_sgr_256_do(ictx, p[0], p[2]);
+		input_csi_dispatch_sgr_256_do(ictx, p[0], p[i + 1]);
 		break;
 	}
 }
@@ -1919,6 +2005,7 @@ input_csi_dispatch_sgr(struct input_ctx *ictx)
 			gc->attr |= GRID_ATTR_ITALICS;
 			break;
 		case 4:
+			gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE;
 			gc->attr |= GRID_ATTR_UNDERSCORE;
 			break;
 		case 5:
@@ -1940,7 +2027,7 @@ input_csi_dispatch_sgr(struct input_ctx *ictx)
 			gc->attr &= ~GRID_ATTR_ITALICS;
 			break;
 		case 24:
-			gc->attr &= ~GRID_ATTR_UNDERSCORE;
+			gc->attr &= ~GRID_ATTR_ALL_UNDERSCORE;
 			break;
 		case 25:
 			gc->attr &= ~GRID_ATTR_BLINK;
@@ -2004,6 +2091,17 @@ input_csi_dispatch_sgr(struct input_ctx *ictx)
 	}
 }
 
+/* End of input with BEL. */
+static int
+input_end_bel(struct input_ctx *ictx)
+{
+	log_debug("%s", __func__);
+
+	ictx->input_end = INPUT_END_BEL;
+
+	return (0);
+}
+
 /* DCS string started. */
 static void
 input_enter_dcs(struct input_ctx *ictx)
@@ -2019,20 +2117,19 @@ input_enter_dcs(struct input_ctx *ictx)
 static int
 input_dcs_dispatch(struct input_ctx *ictx)
 {
-	const char	prefix[] = "tmux;";
+	struct screen_write_ctx	*sctx = &ictx->ctx;
-	const u_int	prefix_len = (sizeof prefix) - 1;
+	u_char			*buf = ictx->input_buf;
+	size_t			 len = ictx->input_len;
+	const char		 prefix[] = "tmux;";
+	const u_int		 prefixlen = (sizeof prefix) - 1;
 
 	if (ictx->flags & INPUT_DISCARD)
 		return (0);
 
-	log_debug("%s: \"%s\"", __func__, ictx->input_buf);
+	log_debug("%s: \"%s\"", __func__, buf);
 
-	/* Check for tmux prefix. */
+	if (len >= prefixlen && strncmp(buf, prefix, prefixlen) == 0)
-	if (ictx->input_len >= prefix_len &&
+		screen_write_rawstring(sctx, buf + prefixlen, len - prefixlen);
-	    strncmp(ictx->input_buf, prefix, prefix_len) == 0) {
-		screen_write_rawstring(&ictx->ctx,
-		    ictx->input_buf + prefix_len, ictx->input_len - prefix_len);
-	}
 
 	return (0);
 }
@@ -2052,15 +2149,17 @@ input_enter_osc(struct input_ctx *ictx)
 static void
 input_exit_osc(struct input_ctx *ictx)
 {
-	u_char	*p = ictx->input_buf;
+	struct screen_write_ctx	*sctx = &ictx->ctx;
-	u_int	 option;
+	u_char			*p = ictx->input_buf;
+	u_int			 option;
 
 	if (ictx->flags & INPUT_DISCARD)
 		return;
 	if (ictx->input_len < 1 || *p < '0' || *p > '9')
 		return;
 
-	log_debug("%s: \"%s\"", __func__, p);
+	log_debug("%s: \"%s\" (end %s)", __func__, p,
+	    ictx->input_end == INPUT_END_ST ? "ST" : "BEL");
 
 	option = 0;
 	while (*p >= '0' && *p <= '9')
@@ -2072,32 +2171,32 @@ input_exit_osc(struct input_ctx *ictx)
 	case 0:
 	case 2:
 		if (utf8_isvalid(p)) {
-			screen_set_title(ictx->ctx.s, p);
+			screen_set_title(sctx->s, p);
 			server_status_window(ictx->wp->window);
 		}
 		break;
 	case 4:
-		input_osc_4(ictx->wp, p);
+		input_osc_4(ictx, p);
 		break;
 	case 10:
-		input_osc_10(ictx->wp, p);
+		input_osc_10(ictx, p);
 		break;
 	case 11:
-		input_osc_11(ictx->wp, p);
+		input_osc_11(ictx, p);
 		break;
 	case 12:
 		if (utf8_isvalid(p) && *p != '?') /* ? is colour request */
-			screen_set_cursor_colour(ictx->ctx.s, p);
+			screen_set_cursor_colour(sctx->s, p);
 		break;
 	case 52:
-		input_osc_52(ictx->wp, p);
+		input_osc_52(ictx, p);
 		break;
 	case 104:
-		input_osc_104(ictx->wp, p);
+		input_osc_104(ictx, p);
 		break;
 	case 112:
 		if (*p == '\0') /* no arguments allowed */
-			screen_set_cursor_colour(ictx->ctx.s, "");
+			screen_set_cursor_colour(sctx->s, "");
 		break;
 	default:
 		log_debug("%s: unknown '%u'", __func__, option);
@@ -2120,13 +2219,15 @@ input_enter_apc(struct input_ctx *ictx)
 static void
 input_exit_apc(struct input_ctx *ictx)
 {
+	struct screen_write_ctx	*sctx = &ictx->ctx;
+
 	if (ictx->flags & INPUT_DISCARD)
 		return;
 	log_debug("%s: \"%s\"", __func__, ictx->input_buf);
 
 	if (!utf8_isvalid(ictx->input_buf))
 		return;
-	screen_set_title(ictx->ctx.s, ictx->input_buf);
+	screen_set_title(sctx->s, ictx->input_buf);
 	server_status_window(ictx->wp->window);
 }
 
@@ -2162,6 +2263,7 @@ input_exit_rename(struct input_ctx *ictx)
 static int
 input_top_bit_set(struct input_ctx *ictx)
 {
+	struct screen_write_ctx	*sctx = &ictx->ctx;
 	struct utf8_data	*ud = &ictx->utf8data;
 
 	ictx->last = -1;
@@ -2188,18 +2290,19 @@ input_top_bit_set(struct input_ctx *ictx)
 	    (int)ud->size, ud->data, ud->width);
 
 	utf8_copy(&ictx->cell.cell.data, ud);
-	screen_write_collect_add(&ictx->ctx, &ictx->cell.cell);
+	screen_write_collect_add(sctx, &ictx->cell.cell);
 
 	return (0);
 }
 
 /* Handle the OSC 4 sequence for setting (multiple) palette entries. */
 static void
-input_osc_4(struct window_pane *wp, const char *p)
+input_osc_4(struct input_ctx *ictx, const char *p)
 {
-	char	*copy, *s, *next = NULL;
+	struct window_pane	*wp = ictx->wp;
-	long	 idx;
+	char			*copy, *s, *next = NULL;
-	u_int	 r, g, b;
+	long	 		 idx;
+	u_int			 r, g, b;
 
 	copy = s = xstrdup(p);
 	while (s != NULL && *s != '\0') {
@@ -2227,16 +2330,17 @@ bad:
 	free(copy);
 }
 
-/* Handle the OSC 10 sequence for setting background colour. */
+/* Handle the OSC 10 sequence for setting foreground colour. */
 static void
-input_osc_10(struct window_pane *wp, const char *p)
+input_osc_10(struct input_ctx *ictx, const char *p)
 {
-	u_int	 r, g, b;
+	struct window_pane	*wp = ictx->wp;
+	u_int			 r, g, b;
 
 	if (sscanf(p, "rgb:%2x/%2x/%2x", &r, &g, &b) != 3)
 	    goto bad;
 
-	wp->colgc.fg = colour_join_rgb(r, g, b);
+	wp->style.gc.fg = colour_join_rgb(r, g, b);
 	wp->flags |= PANE_REDRAW;
 
 	return;
@@ -2247,14 +2351,15 @@ bad:
 
 /* Handle the OSC 11 sequence for setting background colour. */
 static void
-input_osc_11(struct window_pane *wp, const char *p)
+input_osc_11(struct input_ctx *ictx, const char *p)
 {
-	u_int	 r, g, b;
+	struct window_pane	*wp = ictx->wp;
+	u_int			 r, g, b;
 
 	if (sscanf(p, "rgb:%2x/%2x/%2x", &r, &g, &b) != 3)
 	    goto bad;
 
-	wp->colgc.bg = colour_join_rgb(r, g, b);
+	wp->style.gc.bg = colour_join_rgb(r, g, b);
 	wp->flags |= PANE_REDRAW;
 
 	return;
@@ -2265,13 +2370,16 @@ bad:
 
 /* Handle the OSC 52 sequence for setting the clipboard. */
 static void
-input_osc_52(struct window_pane *wp, const char *p)
+input_osc_52(struct input_ctx *ictx, const char *p)
 {
+	struct window_pane	*wp = ictx->wp;
 	char			*end;
+	const char		*buf;
 	size_t			 len;
 	u_char			*out;
 	int			 outlen, state;
 	struct screen_write_ctx	 ctx;
+	struct paste_buffer	*pb;
 
 	state = options_get_number(global_options, "set-clipboard");
 	if (state != 2)
@@ -2282,6 +2390,32 @@ input_osc_52(struct window_pane *wp, const char *p)
 	end++;
 	if (*end == '\0')
 		return;
+	log_debug("%s: %s", __func__, end);
+
+	if (strcmp(end, "?") == 0) {
+		if ((pb = paste_get_top(NULL)) != NULL) {
+			buf = paste_buffer_data(pb, &len);
+			outlen = 4 * ((len + 2) / 3) + 1;
+			out = xmalloc(outlen);
+			if ((outlen = b64_ntop(buf, len, out, outlen)) == -1) {
+				abort();
+				free(out);
+				return;
+			}
+		} else {
+			outlen = 0;
+			out = NULL;
+		}
+		bufferevent_write(wp->event, "\033]52;;", 6);
+		if (outlen != 0)
+			bufferevent_write(wp->event, out, outlen);
+		if (ictx->input_end == INPUT_END_BEL)
+			bufferevent_write(wp->event, "\007", 1);
+		else
+			bufferevent_write(wp->event, "\033\\", 2);
+		free(out);
+		return;
+	}
 
 	len = (strlen(end) / 4) * 3;
 	if (len == 0)
@@ -2303,10 +2437,11 @@ input_osc_52(struct window_pane *wp, const char *p)
 
 /* Handle the OSC 104 sequence for unsetting (multiple) palette entries. */
 static void
-input_osc_104(struct window_pane *wp, const char *p)
+input_osc_104(struct input_ctx *ictx, const char *p)
 {
-	char	*copy, *s;
+	struct window_pane	*wp = ictx->wp;
-	long	idx;
+	char			*copy, *s;
+	long			 idx;
 
 	if (*p == '\0') {
 		window_pane_reset_palette(wp);

job.c

@@ -36,8 +36,33 @@ static void	job_read_callback(struct bufferevent *, void *);
 static void	job_write_callback(struct bufferevent *, void *);
 static void	job_error_callback(struct bufferevent *, short, void *);
 
+/* A single job. */
+struct job {
+	enum {
+		JOB_RUNNING,
+		JOB_DEAD,
+		JOB_CLOSED
+	} state;
+
+	int			 flags;
+
+	char			*cmd;
+	pid_t			 pid;
+	int			 status;
+
+	int			 fd;
+	struct bufferevent	*event;
+
+	job_update_cb		 updatecb;
+	job_complete_cb		 completecb;
+	job_free_cb		 freecb;
+	void			*data;
+
+	LIST_ENTRY(job)		 entry;
+};
+
 /* All jobs list. */
-struct joblist	all_jobs = LIST_HEAD_INITIALIZER(all_jobs);
+static LIST_HEAD(joblist, job) all_jobs = LIST_HEAD_INITIALIZER(all_jobs);
 
 /* Start a job running, if it isn't already. */
 struct job *
@@ -54,6 +79,7 @@ job_run(const char *cmd, struct session *s, const char *cwd,
 
 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, out) != 0)
 		return (NULL);
+	log_debug("%s: cmd=%s, cwd=%s", __func__, cmd, cwd == NULL ? "" : cwd);
 
 	/*
 	 * Do not set TERM during .tmux.conf, it is nice to be able to use
@@ -128,6 +154,8 @@ job_run(const char *cmd, struct session *s, const char *cwd,
 
 	job->event = bufferevent_new(job->fd, job_read_callback,
 	    job_write_callback, job_error_callback, job);
+	if (job->event == NULL)
+		fatalx("out of memory");
 	bufferevent_enable(job->event, EV_READ|EV_WRITE);
 
 	log_debug("run job %p: %s, pid %ld", job, job->cmd, (long) job->pid);
@@ -207,8 +235,16 @@ job_error_callback(__unused struct bufferevent *bufev, __unused short events,
 
 /* Job died (waitpid() returned its pid). */
 void
-job_died(struct job *job, int status)
+job_check_died(pid_t pid, int status)
 {
+	struct job	*job;
+
+	LIST_FOREACH(job, &all_jobs, entry) {
+		if (pid == job->pid)
+			break;
+	}
+	if (job == NULL)
+		return;
 	log_debug("job died %p: %s, pid %ld", job, job->cmd, (long) job->pid);
 
 	job->status = status;
@@ -222,3 +258,67 @@ job_died(struct job *job, int status)
 		job->state = JOB_DEAD;
 	}
 }
+
+/* Get job status. */
+int
+job_get_status(struct job *job)
+{
+	return (job->status);
+}
+
+/* Get job data. */
+void *
+job_get_data(struct job *job)
+{
+	return (job->data);
+}
+
+/* Get job event. */
+struct bufferevent *
+job_get_event(struct job *job)
+{
+	return (job->event);
+}
+
+/* Kill all jobs. */
+void
+job_kill_all(void)
+{
+	struct job	*job;
+
+	LIST_FOREACH(job, &all_jobs, entry) {
+		if (job->pid != -1)
+			kill(job->pid, SIGTERM);
+	}
+}
+
+/* Are any jobs still running? */
+int
+job_still_running(void)
+{
+	struct job	*job;
+
+	LIST_FOREACH(job, &all_jobs, entry) {
+		if ((~job->flags & JOB_NOWAIT) && job->state == JOB_RUNNING)
+			return (1);
+	}
+	return (0);
+}
+
+/* Print job summary. */
+void
+job_print_summary(struct cmdq_item *item, int blank)
+{
+	struct job	*job;
+	u_int		 n = 0;
+
+	LIST_FOREACH(job, &all_jobs, entry) {
+		if (blank) {
+			cmdq_print(item, "%s", "");
+			blank = 0;
+		}
+		cmdq_print(item, "Job %u: %s [fd=%d, pid=%ld, status=%d]",
+		    n, job->cmd, job->fd, (long)job->pid, job->status);
+		n++;
+	}
+}

key-bindings.c

@@ -24,17 +24,19 @@
 
 #include "tmux.h"
 
-RB_GENERATE(key_bindings, key_binding, entry, key_bindings_cmp);
+static int key_bindings_cmp(struct key_binding *, struct key_binding *);
-RB_GENERATE(key_tables, key_table, entry, key_table_cmp);
+RB_GENERATE_STATIC(key_bindings, key_binding, entry, key_bindings_cmp);
-struct key_tables key_tables = RB_INITIALIZER(&key_tables);
+static int key_table_cmp(struct key_table *, struct key_table *);
+RB_GENERATE_STATIC(key_tables, key_table, entry, key_table_cmp);
+static struct key_tables key_tables = RB_INITIALIZER(&key_tables);
 
-int
+static int
-key_table_cmp(struct key_table *e1, struct key_table *e2)
+key_table_cmp(struct key_table *table1, struct key_table *table2)
 {
-	return (strcmp(e1->name, e2->name));
+	return (strcmp(table1->name, table2->name));
 }
 
-int
+static int
 key_bindings_cmp(struct key_binding *bd1, struct key_binding *bd2)
 {
 	if (bd1->key < bd2->key)
@@ -64,6 +66,18 @@ key_bindings_get_table(const char *name, int create)
 	return (table);
 }
 
+struct key_table *
+key_bindings_first_table(void)
+{
+	return (RB_MIN(key_tables, &key_tables));
+}
+
+struct key_table *
+key_bindings_next_table(struct key_table *table)
+{
+	return (RB_NEXT(key_tables, &key_tables, table));
+}
+
 void
 key_bindings_unref_table(struct key_table *table)
 {
@@ -83,6 +97,27 @@ key_bindings_unref_table(struct key_table *table)
 	free(table);
 }
 
+struct key_binding *
+key_bindings_get(struct key_table *table, key_code key)
+{
+	struct key_binding	bd;
+
+	bd.key = key;
+	return (RB_FIND(key_bindings, &table->key_bindings, &bd));
+}
+
+struct key_binding *
+key_bindings_first(struct key_table *table)
+{
+	return (RB_MIN(key_bindings, &table->key_bindings));
+}
+
+struct key_binding *
+key_bindings_next(__unused struct key_table *table, struct key_binding *bd)
+{
+	return (RB_NEXT(key_bindings, &table->key_bindings, bd));
+}
+
 void
 key_bindings_add(const char *name, key_code key, int repeat,
     struct cmd_list *cmdlist)
@@ -193,7 +228,7 @@ key_bindings_init(void)
 		"bind ] paste-buffer",
 		"bind c new-window",
 		"bind d detach-client",
-		"bind f command-prompt \"find-window -- '%%'\"",
+		"bind f command-prompt \"find-window -Z -- '%%'\"",
 		"bind i display-message",
 		"bind l last-window",
 		"bind m select-pane -m",
@@ -223,6 +258,11 @@ key_bindings_init(void)
 		"bind M-n next-window -a",
 		"bind M-o rotate-window -D",
 		"bind M-p previous-window -a",
+		"bind -r S-Up refresh-client -U 10",
+		"bind -r S-Down refresh-client -D 10",
+		"bind -r S-Left refresh-client -L 10",
+		"bind -r S-Right refresh-client -R 10",
+		"bind -r DC refresh-client -c",
 		"bind -r M-Up resize-pane -U 5",
 		"bind -r M-Down resize-pane -D 5",
 		"bind -r M-Left resize-pane -L 5",

key-string.c

@@ -43,7 +43,9 @@ static const struct {
 	{ "F11",	KEYC_F11 },
 	{ "F12",	KEYC_F12 },
 	{ "IC",		KEYC_IC },
+	{ "Insert",     KEYC_IC },
 	{ "DC",		KEYC_DC },
+	{ "Delete",     KEYC_DC },
 	{ "Home",	KEYC_HOME },
 	{ "End",	KEYC_END },
 	{ "NPage",	KEYC_NPAGE },
@@ -166,9 +168,11 @@ key_string_lookup_string(const char *string)
 	enum utf8_state		 more;
 	wchar_t			 wc;
 
-	/* Is this no key? */
+	/* Is this no key or any key? */
 	if (strcasecmp(string, "None") == 0)
 		return (KEYC_NONE);
+	if (strcasecmp(string, "Any") == 0)
+		return (KEYC_ANY);
 
 	/* Is this a hexadecimal value? */
 	if (string[0] == '0' && string[1] == 'x') {
@@ -251,6 +255,8 @@ key_string_lookup_key(key_code key)
 	/* Handle special keys. */
 	if (key == KEYC_UNKNOWN)
 		return ("Unknown");
+	if (key == KEYC_ANY)
+		return ("Any");
 	if (key == KEYC_FOCUS_IN)
 		return ("FocusIn");
 	if (key == KEYC_FOCUS_OUT)
@@ -267,6 +273,10 @@ key_string_lookup_key(key_code key)
 		return ("MouseMovePane");
 	if (key == KEYC_MOUSEMOVE_STATUS)
 		return ("MouseMoveStatus");
+	if (key == KEYC_MOUSEMOVE_STATUS_LEFT)
+		return ("MouseMoveStatusLeft");
+	if (key == KEYC_MOUSEMOVE_STATUS_RIGHT)
+		return ("MouseMoveStatusRight");
 	if (key == KEYC_MOUSEMOVE_BORDER)
 		return ("MouseMoveBorder");
 	if (key >= KEYC_USER && key < KEYC_USER + KEYC_NUSER) {

layout-custom.c

@@ -167,7 +167,7 @@ layout_parse(struct window *w, const char *layout)
 
 	/* Update pane offsets and sizes. */
 	layout_fix_offsets(lc);
-	layout_fix_panes(w, lc->sx, lc->sy);
+	layout_fix_panes(w);
 
 	/* Then resize the layout back to the original window size. */
 	layout_resize(w, sx, sy);

layout-set.c

@@ -119,7 +119,7 @@ layout_set_even(struct window *w, enum layout_type type)
 {
 	struct window_pane	*wp;
 	struct layout_cell	*lc, *lcnew;
-	u_int			 n;
+	u_int			 n, sx, sy;
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
@@ -131,7 +131,18 @@ layout_set_even(struct window *w, enum layout_type type)
 	/* Free the old root and construct a new. */
 	layout_free(w);
 	lc = w->layout_root = layout_create_cell(NULL);
-	layout_set_size(lc, w->sx, w->sy, 0, 0);
+	if (type == LAYOUT_LEFTRIGHT) {
+		sx = (n * (PANE_MINIMUM + 1)) - 1;
+		if (sx < w->sx)
+			sx = w->sx;
+		sy = w->sy;
+	} else {
+		sy = (n * (PANE_MINIMUM + 1)) - 1;
+		if (sy < w->sy)
+			sy = w->sy;
+		sx = w->sx;
+	}
+	layout_set_size(lc, sx, sy, 0, 0);
 	layout_make_node(lc, type);
 
 	/* Build new leaf cells. */
@@ -148,10 +159,11 @@ layout_set_even(struct window *w, enum layout_type type)
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(lc);
-	layout_fix_panes(w, w->sx, w->sy);
+	layout_fix_panes(w);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
+	window_resize(w, lc->sx, lc->sy);
 	notify_window("window-layout-changed", w);
 	server_redraw_window(w);
 }
@@ -172,9 +184,8 @@ static void
 layout_set_main_h(struct window *w)
 {
 	struct window_pane	*wp;
-	struct layout_cell	*lc, *lcmain, *lcrow, *lcchild;
+	struct layout_cell	*lc, *lcmain, *lcother, *lcchild;
-	u_int			 n, mainheight, otherheight, width, height;
+	u_int			 n, mainh, otherh, sx;
-	u_int			 used, i, j, columns, rows, totalrows;
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
@@ -184,110 +195,65 @@ layout_set_main_h(struct window *w)
 		return;
 	n--;	/* take off main pane */
 
-	/* How many rows and columns will be needed, not counting main? */
+	/* Get the main pane height and work out the other pane height. */
-	columns = (w->sx + 1) / (PANE_MINIMUM + 1);	/* maximum columns */
+	mainh = options_get_number(w->options, "main-pane-height");
-	if (columns == 0)
+	if (mainh + PANE_MINIMUM + 1 >= w->sy) {
-		columns = 1;
+		if (w->sy <= PANE_MINIMUM + 1 + PANE_MINIMUM)
-	rows = 1 + (n - 1) / columns;
+			mainh = PANE_MINIMUM;
-	columns = 1 + (n - 1) / rows;
-	width = (w->sx - (n - 1)) / columns;
-
-	/* Get the main pane height and add one for separator line. */
-	mainheight = options_get_number(w->options, "main-pane-height") + 1;
-
-	/* Get the optional other pane height and add one for separator line. */
-	otherheight = options_get_number(w->options, "other-pane-height") + 1;
-
-	/*
-	 * If an other pane height was specified, honour it so long as it
-	 * doesn't shrink the main height to less than the main-pane-height
-	 */
-	if (otherheight > 1 && w->sy - otherheight > mainheight)
-		mainheight = w->sy - otherheight;
-	if (mainheight < PANE_MINIMUM + 1)
-		mainheight = PANE_MINIMUM + 1;
-
-	/* Try and make everything fit. */
-	totalrows = rows * (PANE_MINIMUM + 1) - 1;
-	if (mainheight + totalrows > w->sy) {
-		if (totalrows + PANE_MINIMUM + 1 > w->sy)
-			mainheight = PANE_MINIMUM + 2;
 		else
-			mainheight = w->sy - totalrows;
+			mainh = w->sy - (PANE_MINIMUM + 1);
-		height = PANE_MINIMUM;
+		otherh = PANE_MINIMUM;
-	} else
+	} else {
-		height = (w->sy - mainheight - (rows - 1)) / rows;
+		otherh = options_get_number(w->options, "other-pane-height");
+		if (otherh == 0)
+			otherh = w->sy - mainh;
+		else if (otherh > w->sy || w->sy - otherh < mainh)
+			otherh = w->sy - mainh;
+		else
+			mainh = w->sy - otherh;
+	}
+
+	/* Work out what height is needed. */
+	sx = (n * (PANE_MINIMUM + 1)) - 1;
+	if (sx < w->sx)
+		sx = w->sx;
 
 	/* Free old tree and create a new root. */
 	layout_free(w);
 	lc = w->layout_root = layout_create_cell(NULL);
-	layout_set_size(lc, w->sx, mainheight + rows * (height + 1) - 1, 0, 0);
+	layout_set_size(lc, sx, mainh + otherh + 1, 0, 0);
 	layout_make_node(lc, LAYOUT_TOPBOTTOM);
 
 	/* Create the main pane. */
 	lcmain = layout_create_cell(lc);
-	layout_set_size(lcmain, w->sx, mainheight - 1, 0, 0);
+	layout_set_size(lcmain, sx, mainh, 0, 0);
 	layout_make_leaf(lcmain, TAILQ_FIRST(&w->panes));
 	TAILQ_INSERT_TAIL(&lc->cells, lcmain, entry);
 
-	/* Create a grid of the remaining cells. */
+	/* Create the other pane. */
-	wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry);
+	lcother = layout_create_cell(lc);
-	for (j = 0; j < rows; j++) {
+	layout_set_size(lcother, sx, otherh, 0, 0);
-		/* If this is the last cell, all done. */
+	layout_make_node(lcother, LAYOUT_LEFTRIGHT);
-		if (wp == NULL)
+	TAILQ_INSERT_TAIL(&lc->cells, lcother, entry);
-			break;
 
-		/* Create the new row. */
+	/* Add the remaining panes as children. */
-		lcrow = layout_create_cell(lc);
+	TAILQ_FOREACH(wp, &w->panes, entry) {
-		layout_set_size(lcrow, w->sx, height, 0, 0);
+		if (wp == TAILQ_FIRST(&w->panes))
-		TAILQ_INSERT_TAIL(&lc->cells, lcrow, entry);
-
-		/* If only one column, just use the row directly. */
-		if (columns == 1) {
-			layout_make_leaf(lcrow, wp);
-			wp = TAILQ_NEXT(wp, entry);
 			continue;
-		}
+		lcchild = layout_create_cell(lc);
-
+		layout_set_size(lcchild, PANE_MINIMUM, otherh, 0, 0);
-		/* Add in the columns. */
+		layout_make_leaf(lcchild, wp);
-		layout_make_node(lcrow, LAYOUT_LEFTRIGHT);
+		TAILQ_INSERT_TAIL(&lcother->cells, lcchild, entry);
-		for (i = 0; i < columns; i++) {
-			/* Create and add a pane cell. */
-			lcchild = layout_create_cell(lcrow);
-			layout_set_size(lcchild, width, height, 0, 0);
-			layout_make_leaf(lcchild, wp);
-			TAILQ_INSERT_TAIL(&lcrow->cells, lcchild, entry);
-
-			/* Move to the next cell. */
-			if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
-				break;
-		}
-
-		/* Adjust the row to fit the full width if necessary. */
-		if (i == columns)
-			i--;
-		used = ((i + 1) * (width + 1)) - 1;
-		if (w->sx <= used)
-			continue;
-		lcchild = TAILQ_LAST(&lcrow->cells, layout_cells);
-		layout_resize_adjust(w, lcchild, LAYOUT_LEFTRIGHT,
-		    w->sx - used);
-	}
-
-	/* Adjust the last row height to fit if necessary. */
-	used = mainheight + (rows * height) + rows - 1;
-	if (w->sy > used) {
-		lcrow = TAILQ_LAST(&lc->cells, layout_cells);
-		layout_resize_adjust(w, lcrow, LAYOUT_TOPBOTTOM,
-		    w->sy - used);
 	}
+	layout_spread_cell(w, lcother);
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(lc);
-	layout_fix_panes(w, w->sx, w->sy);
+	layout_fix_panes(w);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
+	window_resize(w, lc->sx, lc->sy);
 	notify_window("window-layout-changed", w);
 	server_redraw_window(w);
 }
@@ -296,9 +262,8 @@ static void
 layout_set_main_v(struct window *w)
 {
 	struct window_pane	*wp;
-	struct layout_cell	*lc, *lcmain, *lccolumn, *lcchild;
+	struct layout_cell	*lc, *lcmain, *lcother, *lcchild;
-	u_int			 n, mainwidth, otherwidth, width, height;
+	u_int			 n, mainw, otherw, sy;
-	u_int			 used, i, j, columns, rows, totalcolumns;
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
@@ -308,110 +273,65 @@ layout_set_main_v(struct window *w)
 		return;
 	n--;	/* take off main pane */
 
-	/* How many rows and columns will be needed, not counting main? */
+	/* Get the main pane width and work out the other pane width. */
-	rows = (w->sy + 1) / (PANE_MINIMUM + 1);	/* maximum rows */
+	mainw = options_get_number(w->options, "main-pane-width");
-	if (rows == 0)
+	if (mainw + PANE_MINIMUM + 1 >= w->sx) {
-		rows = 1;
+		if (w->sx <= PANE_MINIMUM + 1 + PANE_MINIMUM)
-	columns = 1 + (n - 1) / rows;
+			mainw = PANE_MINIMUM;
-	rows = 1 + (n - 1) / columns;
-	height = (w->sy - (n - 1)) / rows;
-
-	/* Get the main pane width and add one for separator line. */
-	mainwidth = options_get_number(w->options, "main-pane-width") + 1;
-
-	/* Get the optional other pane width and add one for separator line. */
-	otherwidth = options_get_number(w->options, "other-pane-width") + 1;
-
-	/*
-	 * If an other pane width was specified, honour it so long as it
-	 * doesn't shrink the main width to less than the main-pane-width
-	 */
-	if (otherwidth > 1 && w->sx - otherwidth > mainwidth)
-		mainwidth = w->sx - otherwidth;
-	if (mainwidth < PANE_MINIMUM + 1)
-		mainwidth = PANE_MINIMUM + 1;
-
-	/* Try and make everything fit. */
-	totalcolumns = columns * (PANE_MINIMUM + 1) - 1;
-	if (mainwidth + totalcolumns > w->sx) {
-		if (totalcolumns + PANE_MINIMUM + 1 > w->sx)
-			mainwidth = PANE_MINIMUM + 2;
 		else
-			mainwidth = w->sx - totalcolumns;
+			mainw = w->sx - (PANE_MINIMUM + 1);
-		width = PANE_MINIMUM;
+		otherw = PANE_MINIMUM;
-	} else
+	} else {
-		width = (w->sx - mainwidth - (columns - 1)) / columns;
+		otherw = options_get_number(w->options, "other-pane-width");
+		if (otherw == 0)
+			otherw = w->sx - mainw;
+		else if (otherw > w->sx || w->sx - otherw < mainw)
+			otherw = w->sx - mainw;
+		else
+			mainw = w->sx - otherw;
+	}
+
+	/* Work out what height is needed. */
+	sy = (n * (PANE_MINIMUM + 1)) - 1;
+	if (sy < w->sy)
+		sy = w->sy;
 
 	/* Free old tree and create a new root. */
 	layout_free(w);
 	lc = w->layout_root = layout_create_cell(NULL);
-	layout_set_size(lc, mainwidth + columns * (width + 1) - 1, w->sy, 0, 0);
+	layout_set_size(lc, mainw + otherw + 1, sy, 0, 0);
 	layout_make_node(lc, LAYOUT_LEFTRIGHT);
 
 	/* Create the main pane. */
 	lcmain = layout_create_cell(lc);
-	layout_set_size(lcmain, mainwidth - 1, w->sy, 0, 0);
+	layout_set_size(lcmain, mainw, sy, 0, 0);
 	layout_make_leaf(lcmain, TAILQ_FIRST(&w->panes));
 	TAILQ_INSERT_TAIL(&lc->cells, lcmain, entry);
 
-	/* Create a grid of the remaining cells. */
+	/* Create the other pane. */
-	wp = TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry);
+	lcother = layout_create_cell(lc);
-	for (j = 0; j < columns; j++) {
+	layout_set_size(lcother, otherw, sy, 0, 0);
-		/* If this is the last cell, all done. */
+	layout_make_node(lcother, LAYOUT_TOPBOTTOM);
-		if (wp == NULL)
+	TAILQ_INSERT_TAIL(&lc->cells, lcother, entry);
-			break;
 
-		/* Create the new column. */
+	/* Add the remaining panes as children. */
-		lccolumn = layout_create_cell(lc);
+	TAILQ_FOREACH(wp, &w->panes, entry) {
-		layout_set_size(lccolumn, width, w->sy, 0, 0);
+		if (wp == TAILQ_FIRST(&w->panes))
-		TAILQ_INSERT_TAIL(&lc->cells, lccolumn, entry);
-
-		/* If only one row, just use the row directly. */
-		if (rows == 1) {
-			layout_make_leaf(lccolumn, wp);
-			wp = TAILQ_NEXT(wp, entry);
 			continue;
-		}
+		lcchild = layout_create_cell(lc);
-
+		layout_set_size(lcchild, otherw, PANE_MINIMUM, 0, 0);
-		/* Add in the rows. */
+		layout_make_leaf(lcchild, wp);
-		layout_make_node(lccolumn, LAYOUT_TOPBOTTOM);
+		TAILQ_INSERT_TAIL(&lcother->cells, lcchild, entry);
-		for (i = 0; i < rows; i++) {
-			/* Create and add a pane cell. */
-			lcchild = layout_create_cell(lccolumn);
-			layout_set_size(lcchild, width, height, 0, 0);
-			layout_make_leaf(lcchild, wp);
-			TAILQ_INSERT_TAIL(&lccolumn->cells, lcchild, entry);
-
-			/* Move to the next cell. */
-			if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
-				break;
-		}
-
-		/* Adjust the column to fit the full height if necessary. */
-		if (i == rows)
-			i--;
-		used = ((i + 1) * (height + 1)) - 1;
-		if (w->sy <= used)
-			continue;
-		lcchild = TAILQ_LAST(&lccolumn->cells, layout_cells);
-		layout_resize_adjust(w, lcchild, LAYOUT_TOPBOTTOM,
-		    w->sy - used);
-	}
-
-	/* Adjust the last column width to fit if necessary. */
-	used = mainwidth + (columns * width) + columns - 1;
-	if (w->sx > used) {
-		lccolumn = TAILQ_LAST(&lc->cells, layout_cells);
-		layout_resize_adjust(w, lccolumn, LAYOUT_LEFTRIGHT,
-		    w->sx - used);
 	}
+	layout_spread_cell(w, lcother);
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(lc);
-	layout_fix_panes(w, w->sx, w->sy);
+	layout_fix_panes(w);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
+	window_resize(w, lc->sx, lc->sy);
 	notify_window("window-layout-changed", w);
 	server_redraw_window(w);
 }
@@ -421,7 +341,7 @@ layout_set_tiled(struct window *w)
 {
 	struct window_pane	*wp;
 	struct layout_cell	*lc, *lcrow, *lcchild;
-	u_int			 n, width, height, used;
+	u_int			 n, width, height, used, sx, sy;
 	u_int			 i, j, columns, rows;
 
 	layout_print_cell(w->layout_root, __func__, 1);
@@ -450,8 +370,13 @@ layout_set_tiled(struct window *w)
 	/* Free old tree and create a new root. */
 	layout_free(w);
 	lc = w->layout_root = layout_create_cell(NULL);
-	layout_set_size(lc, (width + 1) * columns - 1,
+	sx = ((width + 1) * columns) - 1;
-	    (height + 1) * rows - 1, 0, 0);
+	if (sx < w->sx)
+		sx = w->sx;
+	sy = ((height + 1) * rows) - 1;
+	if (sy < w->sy)
+		sy = w->sy;
+	layout_set_size(lc, sx, sy, 0, 0);
 	layout_make_node(lc, LAYOUT_TOPBOTTOM);
 
 	/* Create a grid of the cells. */
@@ -511,10 +436,11 @@ layout_set_tiled(struct window *w)
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(lc);
-	layout_fix_panes(w, w->sx, w->sy);
+	layout_fix_panes(w);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
+	window_resize(w, lc->sx, lc->sy);
 	notify_window("window-layout-changed", w);
 	server_redraw_window(w);
 }

layout.c

@@ -127,6 +127,42 @@ layout_print_cell(struct layout_cell *lc, const char *hdr, u_int n)
 	}
 }
 
+struct layout_cell *
+layout_search_by_border(struct layout_cell *lc, u_int x, u_int y)
+{
+	struct layout_cell	*lcchild, *last = NULL;
+
+	TAILQ_FOREACH(lcchild, &lc->cells, entry) {
+		if (x >= lcchild->xoff && x < lcchild->xoff + lcchild->sx &&
+		    y >= lcchild->yoff && y < lcchild->yoff + lcchild->sy) {
+			/* Inside the cell - recurse. */
+			return (layout_search_by_border(lcchild, x, y));
+		}
+
+		if (last == NULL) {
+			last = lcchild;
+			continue;
+		}
+
+		switch (lc->type) {
+		case LAYOUT_LEFTRIGHT:
+			if (x < lcchild->xoff && x >= last->xoff + last->sx)
+				return (last);
+			break;
+		case LAYOUT_TOPBOTTOM:
+			if (y < lcchild->yoff && y >= last->yoff + last->sy)
+				return (last);
+			break;
+		case LAYOUT_WINDOWPANE:
+			break;
+		}
+
+		last = lcchild;
+	}
+
+	return (NULL);
+}
+
 void
 layout_set_size(struct layout_cell *lc, u_int sx, u_int sy, u_int xoff,
     u_int yoff)
@@ -200,7 +236,7 @@ layout_need_status(struct layout_cell *lc, int at_top)
 {
 	struct layout_cell	*first_lc;
 
-	if (lc->parent) {
+	if (lc->parent != NULL) {
 		if (lc->parent->type == LAYOUT_LEFTRIGHT)
 			return (layout_need_status(lc->parent, at_top));
 
@@ -217,71 +253,29 @@ layout_need_status(struct layout_cell *lc, int at_top)
 
 /* Update pane offsets and sizes based on their cells. */
 void
-layout_fix_panes(struct window *w, u_int wsx, u_int wsy)
+layout_fix_panes(struct window *w)
 {
 	struct window_pane	*wp;
 	struct layout_cell	*lc;
-	u_int			 sx, sy;
+	int			 shift, status;
-	int			 shift, status, at_top;
 
 	status = options_get_number(w->options, "pane-border-status");
-	at_top = (status == 1);
 	TAILQ_FOREACH(wp, &w->panes, entry) {
 		if ((lc = wp->layout_cell) == NULL)
 			continue;
 
 		if (status != 0)
-			shift = layout_need_status(lc, at_top);
+			shift = layout_need_status(lc, status == 1);
 		else
 			shift = 0;
 
 		wp->xoff = lc->xoff;
 		wp->yoff = lc->yoff;
 
-		if (shift && at_top)
+		if (shift && status == 1)
 			wp->yoff += 1;
 
-		/*
+		window_pane_resize(wp, lc->sx, lc->sy - shift);
-		 * Layout cells are limited by the smallest size of other cells
-		 * within the same row or column; if this isn't the case
-		 * resizing becomes difficult.
-		 *
-		 * However, panes do not have to take up their entire cell, so
-		 * they can be cropped to the window edge if the layout
-		 * overflows and they are partly visible.
-		 *
-		 * This stops cells being hidden unnecessarily.
-		 */
-
-		/*
-		 * Work out the horizontal size. If the pane is actually
-		 * outside the window or the entire pane is already visible,
-		 * don't crop.
-		 */
-		if (lc->xoff >= wsx || lc->xoff + lc->sx < wsx)
-			sx = lc->sx;
-		else {
-			sx = wsx - lc->xoff;
-			if (sx < 1)
-				sx = lc->sx;
-		}
-
-		/*
-		 * Similarly for the vertical size; the minimum vertical size
-		 * is two because scroll regions cannot be one line.
-		 */
-		if (lc->yoff >= wsy || lc->yoff + lc->sy < wsy)
-			sy = lc->sy;
-		else {
-			sy = wsy - lc->yoff;
-			if (sy < 2)
-				sy = lc->sy;
-		}
-
-		if (shift)
-			sy -= 1;
-
-		window_pane_resize(wp, sx, sy);
 	}
 }
 
@@ -313,7 +307,9 @@ layout_resize_check(struct window *w, struct layout_cell *lc,
 {
 	struct layout_cell	*lcchild;
 	u_int			 available, minimum;
+	int			 status;
 
+	status = options_get_number(w->options, "pane-border-status");
 	if (lc->type == LAYOUT_WINDOWPANE) {
 		/* Space available in this cell only. */
 		minimum = PANE_MINIMUM;
@@ -321,9 +317,8 @@ layout_resize_check(struct window *w, struct layout_cell *lc,
 			available = lc->sx;
 		else {
 			available = lc->sy;
-			minimum += layout_need_status(lc,
+			if (status != 0)
-			    options_get_number(w->options,
+				minimum += layout_need_status(lc, status == 1);
-			    "pane-border-status") == 1);
 		}
 		if (available > minimum)
 			available -= minimum;
@@ -455,8 +450,7 @@ layout_init(struct window *w, struct window_pane *wp)
 	lc = w->layout_root = layout_create_cell(NULL);
 	layout_set_size(lc, w->sx, w->sy, 0, 0);
 	layout_make_leaf(lc, wp);
-
+	layout_fix_panes(w);
-	layout_fix_panes(w, w->sx, w->sy);
 }
 
 void
@@ -485,7 +479,7 @@ layout_resize(struct window *w, u_int sx, u_int sy)
 	 * out proportionately - this should leave the layout fitting the new
 	 * window size.
 	 */
-	xchange = sx - w->sx;
+	xchange = sx - lc->sx;
 	xlimit = layout_resize_check(w, lc, LAYOUT_LEFTRIGHT);
 	if (xchange < 0 && xchange < -xlimit)
 		xchange = -xlimit;
@@ -499,7 +493,7 @@ layout_resize(struct window *w, u_int sx, u_int sy)
 		layout_resize_adjust(w, lc, LAYOUT_LEFTRIGHT, xchange);
 
 	/* Adjust vertically in a similar fashion. */
-	ychange = sy - w->sy;
+	ychange = sy - lc->sy;
 	ylimit = layout_resize_check(w, lc, LAYOUT_TOPBOTTOM);
 	if (ychange < 0 && ychange < -ylimit)
 		ychange = -ylimit;
@@ -514,7 +508,7 @@ layout_resize(struct window *w, u_int sx, u_int sy)
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(lc);
-	layout_fix_panes(w, sx, sy);
+	layout_fix_panes(w);
 }
 
 /* Resize a pane to an absolute size. */
@@ -550,29 +544,11 @@ layout_resize_pane_to(struct window_pane *wp, enum layout_type type,
 	layout_resize_pane(wp, type, change, 1);
 }
 
-/* Resize a single pane within the layout. */
 void
-layout_resize_pane(struct window_pane *wp, enum layout_type type, int change,
+layout_resize_layout(struct window *w, struct layout_cell *lc,
-    int opposite)
+    enum layout_type type, int change, int opposite)
 {
-	struct window		*w = wp->window;
+	int	needed, size;
-	struct layout_cell	*lc, *lcparent;
-	int			 needed, size;
-
-	lc = wp->layout_cell;
-
-	/* Find next parent of the same type. */
-	lcparent = lc->parent;
-	while (lcparent != NULL && lcparent->type != type) {
-		lc = lcparent;
-		lcparent = lc->parent;
-	}
-	if (lcparent == NULL)
-		return;
-
-	/* If this is the last cell, move back one. */
-	if (lc == TAILQ_LAST(&lcparent->cells, layout_cells))
-		lc = TAILQ_PREV(lc, layout_cells, entry);
 
 	/* Grow or shrink the cell. */
 	needed = change;
@@ -591,9 +567,34 @@ layout_resize_pane(struct window_pane *wp, enum layout_type type, int change,
 	}
 
 	/* Fix cell offsets. */
-	layout_fix_offsets(wp->window->layout_root);
+	layout_fix_offsets(w->layout_root);
-	layout_fix_panes(wp->window, wp->window->sx, wp->window->sy);
+	layout_fix_panes(w);
-	notify_window("window-layout-changed", wp->window);
+	notify_window("window-layout-changed", w);
+}
+
+/* Resize a single pane within the layout. */
+void
+layout_resize_pane(struct window_pane *wp, enum layout_type type, int change,
+    int opposite)
+{
+	struct layout_cell	*lc, *lcparent;
+
+	lc = wp->layout_cell;
+
+	/* Find next parent of the same type. */
+	lcparent = lc->parent;
+	while (lcparent != NULL && lcparent->type != type) {
+		lc = lcparent;
+		lcparent = lc->parent;
+	}
+	if (lcparent == NULL)
+		return;
+
+	/* If this is the last cell, move back one. */
+	if (lc == TAILQ_LAST(&lcparent->cells, layout_cells))
+		lc = TAILQ_PREV(lc, layout_cells, entry);
+
+	layout_resize_layout(wp->window, lc, type, change, opposite);
 }
 
 /* Helper function to grow pane. */
@@ -674,7 +675,7 @@ void
 layout_assign_pane(struct layout_cell *lc, struct window_pane *wp)
 {
 	layout_make_leaf(lc, wp);
-	layout_fix_panes(wp->window, wp->window->sx, wp->window->sy);
+	layout_fix_panes(wp->window);
 }
 
 /* Calculate the new pane size for resized parent. */
@@ -721,7 +722,7 @@ layout_set_size_check(struct window *w, struct layout_cell *lc,
     enum layout_type type, int size)
 {
 	struct layout_cell	*lcchild;
-	u_int			new_size, available, previous, count, idx;
+	u_int			 new_size, available, previous, count, idx;
 
 	/* Cells with no children must just be bigger than minimum. */
 	if (lc->type == LAYOUT_WINDOWPANE)
@@ -735,6 +736,9 @@ layout_set_size_check(struct window *w, struct layout_cell *lc,
 
 	/* Check new size will work for each child. */
 	if (lc->type == type) {
+		if (available < (count * 2) - 1)
+			return (0);
+
 		if (type == LAYOUT_LEFTRIGHT)
 			previous = lc->sx;
 		else
@@ -744,13 +748,17 @@ layout_set_size_check(struct window *w, struct layout_cell *lc,
 		TAILQ_FOREACH(lcchild, &lc->cells, entry) {
 			new_size = layout_new_pane_size(w, previous, lcchild,
 			    type, size, count - idx, available);
-			if (new_size > available)
+			if (idx == count - 1) {
-				return (0);
+				if (new_size > available)
-
+					return (0);
-			available -= (new_size + 1);
+				available -= new_size;
+			} else {
+				if (new_size + 1 > available)
+					return (0);
+				available -= new_size + 1;
+			}
 			if (!layout_set_size_check(w, lcchild, type, new_size))
 				return (0);
-
 			idx++;
 		}
 	} else {
@@ -826,8 +834,9 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
     int insert_before, int full_size)
 {
 	struct layout_cell     *lc, *lcparent, *lcnew, *lc1, *lc2;
-	u_int			sx, sy, xoff, yoff, size1, size2;
+	u_int			sx, sy, xoff, yoff, size1, size2, minimum;
 	u_int			new_size, saved_size, resize_first = 0;
+	int			status;
 
 	/*
 	 * If full_size is specified, add a new cell at the top of the window
@@ -837,6 +846,7 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
 		lc = wp->window->layout_root;
 	else
 		lc = wp->layout_cell;
+	status = options_get_number(wp->window->options, "pane-border-status");
 
 	/* Copy the old cell size. */
 	sx = lc->sx;
@@ -851,7 +861,10 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
 			return (NULL);
 		break;
 	case LAYOUT_TOPBOTTOM:
-		if (sy < PANE_MINIMUM * 2 + 1)
+		minimum = PANE_MINIMUM * 2 + 1;
+		if (status != 0)
+			minimum += layout_need_status(lc, status == 1);
+		if (sy < minimum)
 			return (NULL);
 		break;
 	default:
@@ -994,7 +1007,7 @@ layout_close_pane(struct window_pane *wp)
 	/* Fix pane offsets and sizes. */
 	if (w->layout_root != NULL) {
 		layout_fix_offsets(w->layout_root);
-		layout_fix_panes(w, w->sx, w->sy);
+		layout_fix_panes(w);
 	}
 	notify_window("window-layout-changed", w);
 }
@@ -1003,22 +1016,29 @@ int
 layout_spread_cell(struct window *w, struct layout_cell *parent)
 {
 	struct layout_cell	*lc;
-	u_int			 number, each, size;
+	u_int			 number, each, size, this;
-	int			 change, changed;
+	int			 change, changed, status;
 
 	number = 0;
 	TAILQ_FOREACH (lc, &parent->cells, entry)
 	    number++;
 	if (number <= 1)
 		return (0);
+	status = options_get_number(w->options, "pane-border-status");
 
 	if (parent->type == LAYOUT_LEFTRIGHT)
 		size = parent->sx;
-	else if (parent->type == LAYOUT_TOPBOTTOM)
+	else if (parent->type == LAYOUT_TOPBOTTOM) {
 		size = parent->sy;
-	else
+		if (status != 0)
+			size -= layout_need_status(parent, status == 1);
+	} else
+		return (0);
+	if (size < number - 1)
 		return (0);
 	each = (size - (number - 1)) / number;
+	if (each == 0)
+		return (0);
 
 	changed = 0;
 	TAILQ_FOREACH (lc, &parent->cells, entry) {
@@ -1029,7 +1049,10 @@ layout_spread_cell(struct window *w, struct layout_cell *parent)
 			change = each - (int)lc->sx;
 			layout_resize_adjust(w, lc, LAYOUT_LEFTRIGHT, change);
 		} else if (parent->type == LAYOUT_TOPBOTTOM) {
-			change = each - (int)lc->sy;
+			this = each;
+			if (status != 0)
+				this += layout_need_status(lc, status == 1);
+			change = this - (int)lc->sy;
 			layout_resize_adjust(w, lc, LAYOUT_TOPBOTTOM, change);
 		}
 		if (change != 0)
@@ -1051,7 +1074,7 @@ layout_spread_out(struct window_pane *wp)
 	do {
 		if (layout_spread_cell(w, parent)) {
 			layout_fix_offsets(parent);
-			layout_fix_panes(w, w->sx, w->sy);
+			layout_fix_panes(w);
 			break;
 		}
 	} while ((parent = parent->parent) != NULL);

mode-tree.c

@@ -192,7 +192,7 @@ mode_tree_clear_tagged(struct mode_tree_list *mtl)
 	}
 }
 
-void
+static void
 mode_tree_up(struct mode_tree_data *mtd, int wrap)
 {
 	if (mtd->current == 0) {
@@ -497,7 +497,7 @@ mode_tree_draw(struct mode_tree_data *mtd)
 	struct options		*oo = wp->window->options;
 	struct screen_write_ctx	 ctx;
 	struct grid_cell	 gc0, gc;
-	u_int			 w, h, i, j, sy, box_x, box_y;
+	u_int			 w, h, i, j, sy, box_x, box_y, width;
 	char			*text, *start, key[7];
 	const char		*tag, *symbol;
 	size_t			 size, n;
@@ -530,7 +530,7 @@ mode_tree_draw(struct mode_tree_data *mtd)
 		line = &mtd->line_list[i];
 		mti = line->item;
 
-		screen_write_cursormove(&ctx, 0, i - mtd->offset);
+		screen_write_cursormove(&ctx, 0, i - mtd->offset, 0);
 
 		if (i < 10)
 			snprintf(key, sizeof key, "(%c)  ", '0' + i);
@@ -572,8 +572,9 @@ mode_tree_draw(struct mode_tree_data *mtd)
 			tag = "*";
 		else
 			tag = "";
-		xasprintf(&text, "%-*s%s%s%s: %s", keylen, key, start,
+		xasprintf(&text, "%-*s%s%s%s: ", keylen, key, start, mti->name,
-		    mti->name, tag, mti->text);
+		    tag);
+		width = utf8_cstrwidth(text);
 		free(start);
 
 		if (mti->tagged) {
@@ -582,11 +583,13 @@ mode_tree_draw(struct mode_tree_data *mtd)
 		}
 
 		if (i != mtd->current) {
-			screen_write_nputs(&ctx, w, &gc0, "%s", text);
 			screen_write_clearendofline(&ctx, 8);
+			screen_write_puts(&ctx, &gc0, "%s", text);
+			format_draw(&ctx, &gc0, w - width, mti->text, NULL);
 		} else {
-			screen_write_nputs(&ctx, w, &gc, "%s", text);
 			screen_write_clearendofline(&ctx, gc.bg);
+			screen_write_puts(&ctx, &gc, "%s", text);
+			format_draw(&ctx, &gc, w - width, mti->text, NULL);
 		}
 		free(text);
 
@@ -605,13 +608,13 @@ mode_tree_draw(struct mode_tree_data *mtd)
 	line = &mtd->line_list[mtd->current];
 	mti = line->item;
 
-	screen_write_cursormove(&ctx, 0, h);
+	screen_write_cursormove(&ctx, 0, h, 0);
 	screen_write_box(&ctx, w, sy - h);
 
 	xasprintf(&text, " %s (sort: %s)", mti->name,
 	    mtd->sort_list[mtd->sort_type]);
 	if (w - 2 >= strlen(text)) {
-		screen_write_cursormove(&ctx, 1, h);
+		screen_write_cursormove(&ctx, 1, h, 0);
 		screen_write_puts(&ctx, &gc0, "%s", text);
 
 		if (mtd->no_matches)
@@ -633,7 +636,7 @@ mode_tree_draw(struct mode_tree_data *mtd)
 	box_y = sy - h - 2;
 
 	if (box_x != 0 && box_y != 0) {
-		screen_write_cursormove(&ctx, 2, h + 1);
+		screen_write_cursormove(&ctx, 2, h + 1, 0);
 		mtd->drawcb(mtd->modedata, mti->itemdata, &ctx, box_x, box_y);
 	}
 

notify.c

@@ -35,7 +35,7 @@ struct notify_entry {
 };
 
 static void
-notify_hook(struct cmdq_item *item, struct notify_entry *ne)
+notify_hook1(struct cmdq_item *item, struct notify_entry *ne)
 {
 	struct cmd_find_state	 fs;
 	struct hook		*hook;
@@ -101,7 +101,7 @@ notify_callback(struct cmdq_item *item, void *data)
 	if (strcmp(ne->name, "session-window-changed") == 0)
 		control_notify_session_window_changed(ne->session);
 
-	notify_hook(item, ne);
+	notify_hook1(item, ne);
 
 	if (ne->client != NULL)
 		server_client_unref(ne->client);
@@ -153,6 +153,24 @@ notify_add(const char *name, struct cmd_find_state *fs, struct client *c,
 	cmdq_append(NULL, new_item);
 }
 
+void
+notify_hook(struct cmdq_item *item, const char *name)
+{
+	struct notify_entry	ne;
+
+	memset(&ne, 0, sizeof ne);
+
+	ne.name = name;
+	cmd_find_copy_state(&ne.fs, &item->target);
+
+	ne.client = item->client;
+	ne.session = item->target.s;
+	ne.window = item->target.w;
+	ne.pane = item->target.wp->id;
+
+	notify_hook1(item, &ne);
+}
+
 void
 notify_input(struct window_pane *wp, struct evbuffer *input)
 {

options-table.c

@@ -38,6 +38,9 @@ static const char *options_table_mode_keys_list[] = {
 static const char *options_table_clock_mode_style_list[] = {
 	"12", "24", NULL
 };
+static const char *options_table_status_list[] = {
+	"off", "on", "2", "3", "4", "5", NULL
+};
 static const char *options_table_status_keys_list[] = {
 	"emacs", "vi", NULL
 };
@@ -59,6 +62,72 @@ static const char *options_table_pane_status_list[] = {
 static const char *options_table_set_clipboard_list[] = {
 	"off", "external", "on", NULL
 };
+static const char *options_table_window_size_list[] = {
+	"largest", "smallest", "manual", NULL
+};
+
+/* Status line format. */
+#define OPTIONS_TABLE_STATUS_FORMAT1 \
+	"#[align=left range=left #{status-left-style}]" \
+	"#{T;=/#{status-left-length}:status-left}#[norange default]" \
+	"#[list=on align=#{status-justify}]" \
+	"#[list=left-marker]<#[list=right-marker]>#[list=on]" \
+	"#{W:" \
+		"#[range=window|#{window_index} " \
+			"#{window-status-style}" \
+			"#{?#{&&:#{window_last_flag}," \
+				"#{!=:#{window-status-last-style},default}}, " \
+				"#{window-status-last-style}," \
+			"}" \
+			"#{?#{&&:#{window_bell_flag}," \
+				"#{!=:#{window-status-bell-style},default}}, " \
+				"#{window-status-bell-style}," \
+				"#{?#{&&:#{||:#{window_activity_flag}," \
+					     "#{window_silence_flag}}," \
+					"#{!=:" \
+					"#{window-status-activity-style}," \
+					"default}}, " \
+					"#{window-status-activity-style}," \
+				"}" \
+			"}" \
+		"]" \
+		"#{T:window-status-format}" \
+		"#[norange default]" \
+		"#{?window_end_flag,,#{window-status-separator}}" \
+	"," \
+		"#[range=window|#{window_index} list=focus " \
+			"#{?#{!=:#{window-status-current-style},default}," \
+	                        "#{window-status-current-style}," \
+	                        "#{window-status-style}" \
+	                "}" \
+			"#{?#{&&:#{window_last_flag}," \
+				"#{!=:#{window-status-last-style},default}}, " \
+				"#{window-status-last-style}," \
+			"}" \
+			"#{?#{&&:#{window_bell_flag}," \
+				"#{!=:#{window-status-bell-style},default}}, " \
+				"#{window-status-bell-style}," \
+				"#{?#{&&:#{||:#{window_activity_flag}," \
+					     "#{window_silence_flag}}," \
+					"#{!=:" \
+					"#{window-status-activity-style}," \
+					"default}}, " \
+					"#{window-status-activity-style}," \
+				"}" \
+			"}" \
+		"]" \
+		"#{T:window-status-current-format}" \
+		"#[norange list=on default]" \
+		"#{?window_end_flag,,#{window-status-separator}}" \
+	"}" \
+	"#[nolist align=right range=right #{status-right-style}]" \
+	"#{T;=/#{status-right-length}:status-right}#[norange default]"
+#define OPTIONS_TABLE_STATUS_FORMAT2 \
+	"#[align=centre]#{P:#{?pane_active,#[reverse],}" \
+	"#{pane_index}[#{pane_width}x#{pane_height}]#[default] }"
+static const char *options_table_status_format_default[] = {
+	OPTIONS_TABLE_STATUS_FORMAT1, OPTIONS_TABLE_STATUS_FORMAT2, NULL
+};
 
 /* Top-level options. */
 const struct options_table_entry options_table[] = {
@@ -193,6 +262,13 @@ const struct options_table_entry options_table[] = {
 	  .default_str = _PATH_BSHELL
 	},
 
+	{ .name = "default-size",
+	  .type = OPTIONS_TABLE_STRING,
+	  .scope = OPTIONS_TABLE_SESSION,
+	  .pattern = "[0-9]*x[0-9]*",
+	  .default_str = "80x24"
+	},
+
 	{ .name = "destroy-unattached",
 	  .type = OPTIONS_TABLE_FLAG,
 	  .scope = OPTIONS_TABLE_SESSION,
@@ -261,54 +337,12 @@ const struct options_table_entry options_table[] = {
 	  .default_str = "lock -np"
 	},
 
-	{ .name = "message-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 0,
-	  .style = "message-style"
-	},
-
-	{ .name = "message-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 3,
-	  .style = "message-style"
-	},
-
-	{ .name = "message-command-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 0,
-	  .style = "message-command-style"
-	},
-
-	{ .name = "message-command-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 0,
-	  .style = "message-command-style"
-	},
-
-	{ .name = "message-command-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 3,
-	  .style = "message-command-style"
-	},
-
 	{ .name = "message-command-style",
 	  .type = OPTIONS_TABLE_STYLE,
 	  .scope = OPTIONS_TABLE_SESSION,
 	  .default_str = "bg=black,fg=yellow"
 	},
 
-	{ .name = "message-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 0,
-	  .style = "message-style"
-	},
-
 	{ .name = "message-style",
 	  .type = OPTIONS_TABLE_STYLE,
 	  .scope = OPTIONS_TABLE_SESSION,
@@ -367,30 +401,28 @@ const struct options_table_entry options_table[] = {
 	},
 
 	{ .name = "status",
-	  .type = OPTIONS_TABLE_FLAG,
+	  .type = OPTIONS_TABLE_CHOICE,
 	  .scope = OPTIONS_TABLE_SESSION,
+	  .choices = options_table_status_list,
 	  .default_num = 1
 	},
 
-	{ .name = "status-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 0,
-	  .style = "status-style"
-	},
-
 	{ .name = "status-bg",
 	  .type = OPTIONS_TABLE_COLOUR,
 	  .scope = OPTIONS_TABLE_SESSION,
 	  .default_num = 2,
-	  .style = "status-style"
 	},
 
 	{ .name = "status-fg",
 	  .type = OPTIONS_TABLE_COLOUR,
 	  .scope = OPTIONS_TABLE_SESSION,
 	  .default_num = 0,
-	  .style = "status-style"
+	},
+
+	{ .name = "status-format",
+	  .type = OPTIONS_TABLE_ARRAY,
+	  .scope = OPTIONS_TABLE_SESSION,
+	  .default_arr = options_table_status_format_default,
 	},
 
 	{ .name = "status-interval",
@@ -421,27 +453,6 @@ const struct options_table_entry options_table[] = {
 	  .default_str = "[#S] "
 	},
 
-	{ .name = "status-left-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 0,
-	  .style = "status-left-style"
-	},
-
-	{ .name = "status-left-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 8,
-	  .style = "status-left-style"
-	},
-
-	{ .name = "status-left-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 8,
-	  .style = "status-left-style"
-	},
-
 	{ .name = "status-left-length",
 	  .type = OPTIONS_TABLE_NUMBER,
 	  .scope = OPTIONS_TABLE_SESSION,
@@ -466,28 +477,9 @@ const struct options_table_entry options_table[] = {
 	{ .name = "status-right",
 	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_str = " \"#{=21:pane_title}\" %H:%M %d-%b-%y"
+	  .default_str = "#{?window_bigger,"
-	},
+	                 "[#{window_offset_x}#,#{window_offset_y}] ,}"
-
+	                 "\"#{=21:pane_title}\" %H:%M %d-%b-%y"
-	{ .name = "status-right-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 0,
-	  .style = "status-right-style"
-	},
-
-	{ .name = "status-right-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 8,
-	  .style = "status-right-style"
-	},
-
-	{ .name = "status-right-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_num = 8,
-	  .style = "status-right-style"
 	},
 
 	{ .name = "status-right-length",
@@ -513,8 +505,8 @@ const struct options_table_entry options_table[] = {
 	{ .name = "update-environment",
 	  .type = OPTIONS_TABLE_ARRAY,
 	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_str = "DISPLAY SSH_ASKPASS SSH_AUTH_SOCK SSH_AGENT_PID "
+	  .default_str = "DISPLAY KRB5CCNAME SSH_ASKPASS SSH_AUTH_SOCK "
-			 "SSH_CONNECTION WINDOWID XAUTHORITY"
+	  		 "SSH_AGENT_PID SSH_CONNECTION WINDOWID XAUTHORITY"
 	},
 
 	{ .name = "visual-activity",
@@ -588,22 +580,6 @@ const struct options_table_entry options_table[] = {
 	  .default_num = 1
 	},
 
-	{ .name = "force-height",
-	  .type = OPTIONS_TABLE_NUMBER,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .minimum = 0,
-	  .maximum = INT_MAX,
-	  .default_num = 0
-	},
-
-	{ .name = "force-width",
-	  .type = OPTIONS_TABLE_NUMBER,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .minimum = 0,
-	  .maximum = INT_MAX,
-	  .default_num = 0
-	},
-
 	{ .name = "main-pane-height",
 	  .type = OPTIONS_TABLE_NUMBER,
 	  .scope = OPTIONS_TABLE_WINDOW,
@@ -620,27 +596,6 @@ const struct options_table_entry options_table[] = {
 	  .default_num = 80
 	},
 
-	{ .name = "mode-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 0,
-	  .style = "mode-style"
-	},
-
-	{ .name = "mode-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 3,
-	  .style = "mode-style"
-	},
-
-	{ .name = "mode-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 0,
-	  .style = "mode-style"
-	},
-
 	{ .name = "mode-keys",
 	  .type = OPTIONS_TABLE_CHOICE,
 	  .scope = OPTIONS_TABLE_WINDOW,
@@ -690,20 +645,6 @@ const struct options_table_entry options_table[] = {
 	  .default_num = 0
 	},
 
-	{ .name = "pane-active-border-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "pane-active-border-style"
-	},
-
-	{ .name = "pane-active-border-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 2,
-	  .style = "pane-active-border-style"
-	},
-
 	{ .name = "pane-active-border-style",
 	  .type = OPTIONS_TABLE_STYLE,
 	  .scope = OPTIONS_TABLE_WINDOW,
@@ -718,20 +659,6 @@ const struct options_table_entry options_table[] = {
 	  .default_num = 0
 	},
 
-	{ .name = "pane-border-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "pane-border-style"
-	},
-
-	{ .name = "pane-border-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "pane-border-style"
-	},
-
 	{ .name = "pane-border-format",
 	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_WINDOW,
@@ -770,101 +697,31 @@ const struct options_table_entry options_table[] = {
 	  .default_str = "default"
 	},
 
+	{ .name = "window-size",
+	  .type = OPTIONS_TABLE_CHOICE,
+	  .scope = OPTIONS_TABLE_WINDOW,
+	  .choices = options_table_window_size_list,
+	  .default_num = WINDOW_SIZE_SMALLEST
+	},
+
 	{ .name = "window-style",
 	  .type = OPTIONS_TABLE_STYLE,
 	  .scope = OPTIONS_TABLE_WINDOW,
 	  .default_str = "default"
 	},
 
-	{ .name = "window-status-activity-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = GRID_ATTR_REVERSE,
-	  .style = "window-status-activity-style"
-	},
-
-	{ .name = "window-status-activity-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-activity-style"
-	},
-
-	{ .name = "window-status-activity-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-activity-style"
-	},
-
 	{ .name = "window-status-activity-style",
 	  .type = OPTIONS_TABLE_STYLE,
 	  .scope = OPTIONS_TABLE_WINDOW,
 	  .default_str = "reverse"
 	},
 
-	{ .name = "window-status-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 0,
-	  .style = "window-status-style"
-	},
-
-	{ .name = "window-status-bell-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = GRID_ATTR_REVERSE,
-	  .style = "window-status-bell-style"
-	},
-
-	{ .name = "window-status-bell-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-bell-style"
-	},
-
-	{ .name = "window-status-bell-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-bell-style"
-	},
-
 	{ .name = "window-status-bell-style",
 	  .type = OPTIONS_TABLE_STYLE,
 	  .scope = OPTIONS_TABLE_WINDOW,
 	  .default_str = "reverse"
 	},
 
-	{ .name = "window-status-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-style"
-	},
-
-	{ .name = "window-status-current-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 0,
-	  .style = "window-status-current-style"
-	},
-
-	{ .name = "window-status-current-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-current-style"
-	},
-
-	{ .name = "window-status-current-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-current-style"
-	},
-
 	{ .name = "window-status-current-format",
 	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_WINDOW,
@@ -877,40 +734,12 @@ const struct options_table_entry options_table[] = {
 	  .default_str = "default"
 	},
 
-	{ .name = "window-status-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-style"
-	},
-
 	{ .name = "window-status-format",
 	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_WINDOW,
 	  .default_str = "#I:#W#{?window_flags,#{window_flags}, }"
 	},
 
-	{ .name = "window-status-last-attr",
-	  .type = OPTIONS_TABLE_ATTRIBUTES,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 0,
-	  .style = "window-status-last-style"
-	},
-
-	{ .name = "window-status-last-bg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-last-style"
-	},
-
-	{ .name = "window-status-last-fg",
-	  .type = OPTIONS_TABLE_COLOUR,
-	  .scope = OPTIONS_TABLE_WINDOW,
-	  .default_num = 8,
-	  .style = "window-status-last-style"
-	},
-
 	{ .name = "window-status-last-style",
 	  .type = OPTIONS_TABLE_STYLE,
 	  .scope = OPTIONS_TABLE_WINDOW,

options.c

@@ -30,6 +30,23 @@
  * a red-black tree.
  */
 
+struct options_array_item {
+	u_int				 index;
+	char				*value;
+	RB_ENTRY(options_array_item)	 entry;
+};
+RB_HEAD(options_array, options_array_item);
+static int
+options_array_cmp(struct options_array_item *a1, struct options_array_item *a2)
+{
+	if (a1->index < a2->index)
+		return (-1);
+	if (a1->index > a2->index)
+		return (1);
+	return (0);
+}
+RB_GENERATE_STATIC(options_array, options_array_item, entry, options_array_cmp);
+
 struct options_entry {
 	struct options				 *owner;
 
@@ -39,11 +56,8 @@ struct options_entry {
 	union {
 		char				 *string;
 		long long			  number;
-		struct grid_cell		  style;
+		struct style			  style;
-		struct {
+		struct options_array		  array;
-			const char		**array;
-			u_int			  arraysize;
-		};
 	};
 
 	RB_ENTRY(options_entry)			  entry;
@@ -56,8 +70,6 @@ struct options {
 
 static struct options_entry	*options_add(struct options *, const char *);
 
-#define OPTIONS_ARRAY_LIMIT 1000
-
 #define OPTIONS_IS_STRING(o)						\
 	((o)->tableentry == NULL ||					\
 	    (o)->tableentry->type == OPTIONS_TABLE_STRING)
@@ -66,7 +78,6 @@ static struct options_entry	*options_add(struct options *, const char *);
 	    ((o)->tableentry->type == OPTIONS_TABLE_NUMBER ||		\
 	    (o)->tableentry->type == OPTIONS_TABLE_KEY ||		\
 	    (o)->tableentry->type == OPTIONS_TABLE_COLOUR ||		\
-	    (o)->tableentry->type == OPTIONS_TABLE_ATTRIBUTES ||	\
 	    (o)->tableentry->type == OPTIONS_TABLE_FLAG ||		\
 	    (o)->tableentry->type == OPTIONS_TABLE_CHOICE))
 #define OPTIONS_IS_STYLE(o) \
@@ -163,22 +174,30 @@ options_empty(struct options *oo, const struct options_table_entry *oe)
 	o = options_add(oo, oe->name);
 	o->tableentry = oe;
 
+	if (oe->type == OPTIONS_TABLE_ARRAY)
+		RB_INIT(&o->array);
+
 	return (o);
 }
 
 struct options_entry *
 options_default(struct options *oo, const struct options_table_entry *oe)
 {
-	struct options_entry	*o;
+	struct options_entry	 *o;
+	u_int			  i;
 
 	o = options_empty(oo, oe);
-	if (oe->type == OPTIONS_TABLE_ARRAY)
+	if (oe->type == OPTIONS_TABLE_ARRAY) {
-		options_array_assign(o, oe->default_str);
+		if (oe->default_arr != NULL) {
-	else if (oe->type == OPTIONS_TABLE_STRING)
+			for (i = 0; oe->default_arr[i] != NULL; i++)
+				options_array_set(o, i, oe->default_arr[i], 0);
+		} else
+			options_array_assign(o, oe->default_str);
+	} else if (oe->type == OPTIONS_TABLE_STRING)
 		o->string = xstrdup(oe->default_str);
 	else if (oe->type == OPTIONS_TABLE_STYLE) {
-		memcpy(&o->style, &grid_default_cell, sizeof o->style);
+		style_set(&o->style, &grid_default_cell);
-		style_parse(&grid_default_cell, &o->style, oe->default_str);
+		style_parse(&o->style, &grid_default_cell, oe->default_str);
 	} else
 		o->number = oe->default_num;
 	return (o);
@@ -205,15 +224,11 @@ void
 options_remove(struct options_entry *o)
 {
 	struct options	*oo = o->owner;
-	u_int		 i;
 
 	if (OPTIONS_IS_STRING(o))
-		free((void *)o->string);
+		free(o->string);
-	else if (OPTIONS_IS_ARRAY(o)) {
+	else if (OPTIONS_IS_ARRAY(o))
-		for (i = 0; i < o->arraysize; i++)
+		options_array_clear(o);
-			free((void *)o->array[i]);
-		free(o->array);
-	}
 
 	RB_REMOVE(options_tree, &oo->tree, o);
 	free(o);
@@ -231,62 +246,79 @@ options_table_entry(struct options_entry *o)
 	return (o->tableentry);
 }
 
+static struct options_array_item *
+options_array_item(struct options_entry *o, u_int idx)
+{
+	struct options_array_item	a;
+
+	a.index = idx;
+	return (RB_FIND(options_array, &o->array, &a));
+}
+
+static void
+options_array_free(struct options_entry *o, struct options_array_item *a)
+{
+	free(a->value);
+	RB_REMOVE(options_array, &o->array, a);
+	free(a);
+}
+
 void
 options_array_clear(struct options_entry *o)
 {
-	if (OPTIONS_IS_ARRAY(o))
+	struct options_array_item	*a, *a1;
-		o->arraysize = 0;
+
+	if (!OPTIONS_IS_ARRAY(o))
+		return;
+
+	RB_FOREACH_SAFE(a, options_array, &o->array, a1)
+	    options_array_free(o, a);
 }
 
 const char *
 options_array_get(struct options_entry *o, u_int idx)
 {
+	struct options_array_item	*a;
+
 	if (!OPTIONS_IS_ARRAY(o))
 		return (NULL);
-	if (idx >= o->arraysize)
+	a = options_array_item(o, idx);
+	if (a == NULL)
 		return (NULL);
-	return (o->array[idx]);
+	return (a->value);
 }
 
 int
 options_array_set(struct options_entry *o, u_int idx, const char *value,
     int append)
 {
-	char	*new;
+	struct options_array_item	*a;
-	u_int	 i;
+	char				*new;
 
 	if (!OPTIONS_IS_ARRAY(o))
 		return (-1);
 
-	if (idx >= OPTIONS_ARRAY_LIMIT)
+	a = options_array_item(o, idx);
-		return (-1);
+	if (value == NULL) {
-	if (idx >= o->arraysize) {
+		if (a != NULL)
-		o->array = xreallocarray(o->array, idx + 1, sizeof *o->array);
+			options_array_free(o, a);
-		for (i = o->arraysize; i < idx + 1; i++)
+		return (0);
-			o->array[i] = NULL;
-		o->arraysize = idx + 1;
 	}
 
-	new = NULL;
+	if (a == NULL) {
-	if (value != NULL) {
+		a = xcalloc(1, sizeof *a);
-		if (o->array[idx] != NULL && append)
+		a->index = idx;
-			xasprintf(&new, "%s%s", o->array[idx], value);
+		a->value = xstrdup(value);
+		RB_INSERT(options_array, &o->array, a);
+	} else {
+		free(a->value);
+		if (a != NULL && append)
+			xasprintf(&new, "%s%s", a->value, value);
 		else
 			new = xstrdup(value);
+		a->value = new;
 	}
 
-	free((void *)o->array[idx]);
-	o->array[idx] = new;
-	return (0);
-}
-
-int
-options_array_size(struct options_entry *o, u_int *size)
-{
-	if (!OPTIONS_IS_ARRAY(o))
-		return (-1);
-	if (size != NULL)
-		*size = o->arraysize;
 	return (0);
 }
 
@@ -305,37 +337,69 @@ options_array_assign(struct options_entry *o, const char *s)
 	while ((next = strsep(&string, separator)) != NULL) {
 		if (*next == '\0')
 			continue;
-		for (i = 0; i < OPTIONS_ARRAY_LIMIT; i++) {
+		for (i = 0; i < UINT_MAX; i++) {
-			if (i >= o->arraysize || o->array[i] == NULL)
+			if (options_array_item(o, i) == NULL)
 				break;
 		}
-		if (i == OPTIONS_ARRAY_LIMIT)
+		if (i == UINT_MAX)
 			break;
 		options_array_set(o, i, next, 0);
 	}
 	free(copy);
 }
 
+struct options_array_item *
+options_array_first(struct options_entry *o)
+{
+	if (!OPTIONS_IS_ARRAY(o))
+		return (NULL);
+	return (RB_MIN(options_array, &o->array));
+}
+
+struct options_array_item *
+options_array_next(struct options_array_item *a)
+{
+	return (RB_NEXT(options_array, &o->array, a));
+}
+
+u_int
+options_array_item_index(struct options_array_item *a)
+{
+	return (a->index);
+}
+
+const char *
+options_array_item_value(struct options_array_item *a)
+{
+	return (a->value);
+}
+
+int
+options_isarray(struct options_entry *o)
+{
+	return (OPTIONS_IS_ARRAY(o));
+}
+
 int
 options_isstring(struct options_entry *o)
 {
-	if (o->tableentry == NULL)
-		return (1);
 	return (OPTIONS_IS_STRING(o) || OPTIONS_IS_ARRAY(o));
 }
 
 const char *
 options_tostring(struct options_entry *o, int idx, int numeric)
 {
-	static char	 s[1024];
+	static char			 s[1024];
-	const char	*tmp;
+	const char			*tmp;
+	struct options_array_item	*a;
 
 	if (OPTIONS_IS_ARRAY(o)) {
 		if (idx == -1)
 			return (NULL);
-		if ((u_int)idx >= o->arraysize || o->array[idx] == NULL)
+		a = options_array_item(o, idx);
+		if (a == NULL)
 			return ("");
-		return (o->array[idx]);
+		return (a->value);
 	}
 	if (OPTIONS_IS_STYLE(o))
 		return (style_tostring(&o->style));
@@ -351,9 +415,6 @@ options_tostring(struct options_entry *o, int idx, int numeric)
 		case OPTIONS_TABLE_COLOUR:
 			tmp = colour_tostring(o->number);
 			break;
-		case OPTIONS_TABLE_ATTRIBUTES:
-			tmp = attributes_tostring(o->number);
-			break;
 		case OPTIONS_TABLE_FLAG:
 			if (numeric)
 				xsnprintf(s, sizeof s, "%lld", o->number);
@@ -504,7 +565,7 @@ options_get_number(struct options *oo, const char *name)
 	return (o->number);
 }
 
-const struct grid_cell *
+struct style *
 options_get_style(struct options *oo, const char *name)
 {
 	struct options_entry	*o;
@@ -576,17 +637,17 @@ options_set_style(struct options *oo, const char *name, int append,
     const char *value)
 {
 	struct options_entry	*o;
-	struct grid_cell	 gc;
+	struct style		 sy;
 
 	if (*name == '@')
 		fatalx("user option %s must be a string", name);
 
 	o = options_get_only(oo, name);
 	if (o != NULL && append && OPTIONS_IS_STYLE(o))
-		memcpy(&gc, &o->style, sizeof gc);
+		style_copy(&sy, &o->style);
 	else
-		memcpy(&gc, &grid_default_cell, sizeof gc);
+		style_set(&sy, &grid_default_cell);
-	if (style_parse(&grid_default_cell, &gc, value) == -1)
+	if (style_parse(&sy, &grid_default_cell, value) == -1)
 		return (NULL);
 	if (o == NULL) {
 		o = options_default(oo, options_parent_table_entry(oo, name));
@@ -596,7 +657,7 @@ options_set_style(struct options *oo, const char *name, int append,
 
 	if (!OPTIONS_IS_STYLE(o))
 		fatalx("option %s is not a style", name);
-	memcpy(&o->style, &gc, sizeof o->style);
+	style_copy(&o->style, &sy);
 	return (o);
 }
 
@@ -643,44 +704,3 @@ options_scope_from_flags(struct args *args, int window,
 		return (OPTIONS_TABLE_SESSION);
 	}
 }
-
-void
-options_style_update_new(struct options *oo, struct options_entry *o)
-{
-	const char		*newname = o->tableentry->style;
-	struct options_entry	*new;
-
-	if (newname == NULL)
-		return;
-	new = options_get_only(oo, newname);
-	if (new == NULL)
-		new = options_set_style(oo, newname, 0, "default");
-
-	if (strstr(o->name, "-bg") != NULL)
-		new->style.bg = o->number;
-	else if (strstr(o->name, "-fg") != NULL)
-		new->style.fg = o->number;
-	else if (strstr(o->name, "-attr") != NULL)
-		new->style.attr = o->number;
-}
-
-void
-options_style_update_old(struct options *oo, struct options_entry *o)
-{
-	char	newname[128];
-	int	size;
-
-	size = strrchr(o->name, '-') - o->name;
-
-	xsnprintf(newname, sizeof newname, "%.*s-bg", size, o->name);
-	if (options_get(oo, newname) != NULL)
-		options_set_number(oo, newname, o->style.bg);
-
-	xsnprintf(newname, sizeof newname, "%.*s-fg", size, o->name);
-	if (options_get(oo, newname) != NULL)
-		options_set_number(oo, newname, o->style.fg);
-
-	xsnprintf(newname, sizeof newname, "%.*s-attr", size, o->name);
-	if (options_get(oo, newname) != NULL)
-		options_set_number(oo, newname, o->style.attr);
-}

osdep-freebsd.c

@@ -31,6 +31,8 @@
 #include <unistd.h>
 #include <libutil.h>
 
+#include "compat.h"
+
 struct kinfo_proc	*cmp_procs(struct kinfo_proc *, struct kinfo_proc *);
 char			*osdep_get_name(int, char *);
 char			*osdep_get_cwd(int);

osdep-netbsd.c

@@ -23,14 +23,17 @@
 
 #include <errno.h>
 #include <event.h>
+#include <limits.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
+#include "tmux.h"
+
 #define is_runnable(p) \
-        ((p)->p_stat == LSRUN || (p)->p_stat == SIDL)
+	((p)->p_stat == LSRUN || (p)->p_stat == SIDL)
 #define is_stopped(p) \
-        ((p)->p_stat == SSTOP || (p)->p_stat == SZOMB)
+	((p)->p_stat == SSTOP || (p)->p_stat == SZOMB)
 
 struct kinfo_proc2	*cmp_procs(struct kinfo_proc2 *, struct kinfo_proc2 *);
 char			*osdep_get_name(int, char *);
@@ -129,6 +132,22 @@ error:
 char *
 osdep_get_cwd(int fd)
 {
+	static char	target[PATH_MAX + 1];
+	char		*path;
+	pid_t		pgrp;
+	ssize_t		n;
+
+	if ((pgrp = tcgetpgrp(fd)) == -1)
+		return (NULL);
+
+	xasprintf(&path, "/proc/%lld/cwd", (long long) pgrp);
+	n = readlink(path, target, sizeof(target) - 1);
+	free(path);
+	if (n > 0) {
+		target[n] = '\0';
+		return (target);
+	}
+
 	return (NULL);
 }
 

regress/Makefile

@@ -7,3 +7,4 @@ all: $(TESTS)
 
 $(TESTS):
 	sh $*.sh
+	sleep 1

regress/control-client-size.sh

@@ -13,37 +13,37 @@ $TMUX kill-server 2>/dev/null
 
 TMP=$(mktemp)
 OUT=$(mktemp)
-#trap "rm -f $TMP $OUT" 0 1 15
+trap "rm -f $TMP $OUT" 0 1 15
 
 $TMUX -f/dev/null new -d || exit 1
 sleep 1
 cat <<EOF|$TMUX -C a >$TMP
-ls -F':#{session_width} #{session_height}'
+ls -F':#{window_width} #{window_height}'
 refresh -C 100,50
-ls -F':#{session_width} #{session_height}'
+ls -F':#{window_width} #{window_height}'
 EOF
 grep ^: $TMP >$OUT
-printf ":80 24\n:100 50\n"|cmp -s $OUT - || exit 1
+printf ":80 24\n:100 49\n"|cmp -s $OUT - || exit 1
 $TMUX kill-server 2>/dev/null
 
 $TMUX -f/dev/null new -d || exit 1
 sleep 1
-cat <<EOF|$TMUX -C a >$TMP
+cat <<EOF|$TMUX -f/dev/null -C a >$TMP
-ls -F':#{session_width} #{session_height}'
+ls -F':#{window_width} #{window_height}'
 refresh -C 80,24
-ls -F':#{session_width} #{session_height}'
+ls -F':#{window_width} #{window_height}'
 EOF
 grep ^: $TMP >$OUT
-printf ":80 24\n:80 24\n"|cmp -s $OUT - || exit 1
+printf ":80 24\n:80 23\n"|cmp -s $OUT - || exit 1
 $TMUX kill-server 2>/dev/null
 
-cat <<EOF|$TMUX -C new -x 100 -y 50 >$TMP
+cat <<EOF|$TMUX -f/dev/null -C new -x 100 -y 50 >$TMP
-ls -F':#{session_width} #{session_height}'
+ls -F':#{window_width} #{window_height}'
 refresh -C 80,24
-ls -F':#{session_width} #{session_height}'
+ls -F':#{window_width} #{window_height}'
 EOF
 grep ^: $TMP >$OUT
-printf ":100 50\n:80 24\n"|cmp -s $OUT - || exit 1
+printf ":100 50\n:80 23\n"|cmp -s $OUT - || exit 1
 $TMUX kill-server 2>/dev/null
 
 exit 0

regress/cursor-test.txt

@@ -0,0 +1,6 @@
+Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
+incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
+commodo consequat. Duis aute
+irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat
+nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia
+deserunt mollit anim id est laborum.

regress/cursor-test1.result

@@ -0,0 +1,33 @@
+14 8 t
+0 ud exercitation ullamco laboris nisi ut
+1 aliquip ex ea
+2 commodo consequat. Duis aute
+3 irure dolor in reprehenderit in voluptat
+4 e velit esse cillum dolore eu fugiat
+5 nulla pariatur. Excepteur sint occaecat
+6 cupidatat non proident, sunt in culpa qu
+7 i officia
+8 deserunt mollit anim id est laborum.
+9 
+4 6 t
+0 cupidatat
+1 non proide
+2 nt, sunt i
+3 n culpa qu
+4 i officia
+5 deserunt m
+6 ollit anim
+7  id est la
+8 borum.
+9 
+14 8 t
+0 incididunt ut labore et dolore magna aliqua. Ut en
+1 im ad minim veniam, quis nostrud exercitation ulla
+2 mco laboris nisi ut aliquip ex ea
+3 commodo consequat. Duis aute
+4 irure dolor in reprehenderit in voluptate velit es
+5 se cillum dolore eu fugiat
+6 nulla pariatur. Excepteur sint occaecat cupidatat
+7 non proident, sunt in culpa qui officia
+8 deserunt mollit anim id est laborum.
+9 

regress/cursor-test1.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -f/dev/null -Ltest"
+$TMUX kill-server 2>/dev/null
+
+TMP=$(mktemp)
+trap "rm -f $TMP" 0 1 15
+
+$TMUX -f/dev/null new -d -x40 -y10 \
+      "cat cursor-test.txt; printf '\e[9;15H'; cat" || exit 1
+$TMUX set -g window-size manual || exit 1
+
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+$TMUX resizew -x10 || exit 1
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+$TMUX resizew -x50 || exit 1
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+
+cmp -s $TMP cursor-test1.result || exit 1
+
+$TMUX kill-server 2>/dev/null
+exit 0

regress/cursor-test2.result

@@ -0,0 +1,33 @@
+9 7 a
+0 cupidatat
+1 non proide
+2 nt, sunt i
+3 n culpa qu
+4 i officia
+5 deserunt m
+6 ollit anim
+7  id est la
+8 borum.
+9 
+4 6 a
+0 icia
+1 deser
+2 unt m
+3 ollit
+4  anim
+5  id e
+6 st la
+7 borum
+8 .
+9 
+29 8 a
+0 incididunt ut labore et dolore magna aliqua. Ut en
+1 im ad minim veniam, quis nostrud exercitation ulla
+2 mco laboris nisi ut aliquip ex ea
+3 commodo consequat. Duis aute
+4 irure dolor in reprehenderit in voluptate velit es
+5 se cillum dolore eu fugiat
+6 nulla pariatur. Excepteur sint occaecat cupidatat
+7 non proident, sunt in culpa qui officia
+8 deserunt mollit anim id est laborum.
+9 

regress/cursor-test2.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Ltest"
+$TMUX kill-server 2>/dev/null
+
+TMP=$(mktemp)
+trap "rm -f $TMP" 0 1 15
+
+$TMUX -f/dev/null new -d -x10 -y10 \
+      "cat cursor-test.txt; printf '\e[8;10H'; cat" || exit 1
+$TMUX set -g window-size manual || exit 1
+
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+$TMUX resizew -x5 || exit 1
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+$TMUX resizew -x50 || exit 1
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+
+cmp -s $TMP cursor-test2.result || exit 1
+
+$TMUX kill-server 2>/dev/null
+exit 0

regress/cursor-test3.result

@@ -0,0 +1,9 @@
+6 1 b
+0 abcdefa
+1 bcdefab
+3 1 b
+0 fabcd
+1 efab
+6 1 b
+0 abcdefa
+1 bcdefab

regress/cursor-test3.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Ltest"
+$TMUX kill-server 2>/dev/null
+
+TMP=$(mktemp)
+trap "rm -f $TMP" 0 1 15
+
+$TMUX -f/dev/null new -d -x7 -y2 \
+      "printf 'abcdefabcdefab'; printf '\e[2;7H'; cat" || exit 1
+$TMUX set -g window-size manual || exit 1
+
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+$TMUX resizew -x5 || exit 1
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+$TMUX resizew -x7 || exit 1
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+
+cmp -s $TMP cursor-test3.result || exit 1
+
+$TMUX kill-server 2>/dev/null
+exit 0

regress/cursor-test4.result

@@ -0,0 +1,16 @@
+0 1  
+0 abcdef
+1 
+2 
+0 1  
+0 abcdef
+1 
+2 
+0 1  
+0 def
+1 
+2 
+0 1  
+0 abcdef
+1 
+2 

regress/cursor-test4.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Ltest"
+$TMUX kill-server 2>/dev/null
+
+TMP=$(mktemp)
+trap "rm -f $TMP" 0 1 15
+
+$TMUX -f/dev/null new -d -x10 -y3 "printf 'abcdef\n'; cat" || exit 1
+$TMUX set -g window-size manual || exit 1
+
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+$TMUX resizew -x20 || exit 1
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+$TMUX resizew -x3 || exit 1
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+$TMUX resizew -x10 || exit 1
+$TMUX display -pF '#{cursor_x} #{cursor_y} #{cursor_character}' >>$TMP
+$TMUX capturep -p|awk '{print NR-1,$0}' >>$TMP
+
+cmp -s $TMP cursor-test4.result || exit 1
+
+$TMUX kill-server 2>/dev/null
+exit 0

regress/format-strings.sh

@@ -0,0 +1,183 @@
+#!/bin/sh
+
+# Tests of formats as described in tmux(1) FORMATS
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Ltest"
+
+# test_format $format $expected_result
+test_format()
+{
+	fmt="$1"
+	exp="$2"
+
+	out=$($TMUX display-message -p "$fmt")
+
+	if [ "$out" != "$exp" ]; then
+		echo "Format test failed for '$fmt'."
+		echo "Expected: '$exp'"
+		echo "But got   '$out'"
+		exit 1
+	fi
+}
+
+# test_conditional_with_pane_in_mode $format $exp1 $exp2
+#
+# Tests the format string $format to yield $exp1 if #{pane_in_mode} is true and
+# $exp2 when #{pane_in_mode} is false.
+test_conditional_with_pane_in_mode()
+{
+	fmt="$1"
+	exp_true="$2"
+	exp_false="$3"
+
+	$TMUX copy-mode # enter copy mode
+	test_format "$fmt" "$exp_true"
+	$TMUX send-keys -X cancel # leave copy mode
+	test_format "$fmt" "$exp_false"
+}
+
+# test_conditional_with_session_name #format $exp_summer $exp_winter
+#
+# Tests the format string $format to yield $exp_summer if the session name is
+# 'Summer' and $exp_winter if the session name is 'Winter'.
+test_conditional_with_session_name()
+{
+	fmt="$1"
+	exp_summer="$2"
+	exp_winter="$3"
+
+	$TMUX rename-session "Summer"
+	test_format "$fmt" "$exp_summer"
+	$TMUX rename-session "Winter"
+	test_format "$fmt" "$exp_winter"
+	$TMUX rename-session "Summer" # restore default
+}
+
+
+$TMUX kill-server 2>/dev/null
+$TMUX -f/dev/null new-session -d || exit 1
+$TMUX rename-session "Summer" || exit 1 # used later in conditionals
+
+# Plain string without substitutions et al
+test_format "abc xyz" "abc xyz"
+
+# Test basic escapes for "#", "{", "#{" "}", "#}", ","
+test_format "##" "#"
+test_format "#," ","
+test_format "{" "{"
+test_format "##{" "#{"
+test_format "#}" "}"
+test_format "###}" "#}" # not a "basic" one but interesting nevertheless
+
+# Simple expansion
+test_format "#{pane_in_mode}" "0"
+
+# Simple conditionals
+test_conditional_with_pane_in_mode "#{?pane_in_mode,abc,xyz}" "abc" "xyz"
+
+# Expansion in conditionals
+test_conditional_with_pane_in_mode "#{?pane_in_mode,#{session_name},xyz}" "Summer" "xyz"
+
+# Basic escapes in conditionals
+# First argument
+test_conditional_with_pane_in_mode "#{?pane_in_mode,##,xyz}" "#" "xyz"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,#,,xyz}" "," "xyz"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,{,xyz}" "{" "xyz"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,##{,xyz}" "#{" "xyz"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,#},xyz}" "}" "xyz"
+# not a "basic" one but interesting nevertheless
+test_conditional_with_pane_in_mode "#{?pane_in_mode,###},xyz}" "#}" "xyz"
+# Second argument
+test_conditional_with_pane_in_mode "#{?pane_in_mode,abc,##}" "abc" "#"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,abc,#,}" "abc" ","
+test_conditional_with_pane_in_mode "#{?pane_in_mode,abc,{}" "abc" "{"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,abc,##{}" "abc" "#{"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,abc,#}}" "abc" "}"
+# not a "basic" one but interesting nevertheless
+test_conditional_with_pane_in_mode "#{?pane_in_mode,abc,###}}" "abc" "#}"
+# mixed
+test_conditional_with_pane_in_mode "#{?pane_in_mode,{,#}}" "{" "}"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,#},{}" "}" "{"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,##{,###}}" "#{" "#}"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,###},##{}" "#}" "#{"
+
+# Conditionals split on the second comma (this is not documented)
+test_conditional_with_pane_in_mode "#{?pane_in_mode,abc,xyz,bonus}" "abc" "xyz,bonus"
+
+# Curly brackets {...} do not capture a comma inside of conditionals as the
+# conditional ends on the first '}'
+test_conditional_with_pane_in_mode "#{?pane_in_mode,{abc,xyz},bonus}" "{abc,bonus}" "xyz,bonus}"
+
+# Substitutions '#{...}' capture the comma
+# invalid format: #{abc,xyz} is not a known variable name.
+#test_conditional_with_pane_in_mode "#{?pane_in_mode,#{abc,xyz},bonus}" "" "bonus"
+
+# Parenthesis (...) do not captura a comma
+test_conditional_with_pane_in_mode "#{?pane_in_mode,(abc,xyz),bonus}" "(abc" "xyz),bonus"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,(abc#,xyz),bonus}" "(abc,xyz)" "bonus"
+
+# Brackets [...] do not captura a comma
+test_conditional_with_pane_in_mode "#{?pane_in_mode,[abc,xyz],bonus}" "[abc" "xyz],bonus"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,[abc#,xyz],bonus}" "[abc,xyz]" "bonus"
+
+
+# Escape comma inside of #(...)
+# Note: #() commands are run asynchronous and are substituted with result of the
+# *previous* run or a placeholder (like "<'echo ,' not ready") if the command
+# has not been run before. The format is updated as soon as the command
+# finishes. As we are printing the message only once it never gets updated
+# and the displayed message is "<'echo ,' not ready>"
+test_format "#{?pane_in_mode,#(echo #,),xyz}" "xyz"
+test_conditional_with_pane_in_mode "#{?pane_in_mode,#(echo #,),xyz}" "<'echo ,' not ready>" "xyz"
+# This caching does not work :-(
+#$TMUX display-message -p "#(echo #,)" > /dev/null
+#test_conditional_with_pane_in_mode "#{?pane_in_mode,#(echo #,),xyz}" "," "xyz"
+#test_conditional_with_pane_in_mode "#{?pane_in_mode,#(echo #,),xyz}" "," "xyz"
+
+# invalid format: '#(' is not closed in the first argument of #{?,,}.
+#test_conditional_with_pane_in_mode "#{?pane_in_mode,#(echo ,),xyz}" "" "),xyz"
+
+# Escape comma inside of #[...]
+test_conditional_with_pane_in_mode "#{?pane_in_mode,#[fg=default#,bg=default]abc,xyz}" "#[fg=default,bg=default]abc" "xyz"
+# invalid format: '#[' is not closed in the first argument of #{?,,}
+#test_conditional_with_pane_in_mode "#{?pane_in_mode,#[fg=default,bg=default]abc,xyz}" "" "bg=default]abc,xyz"
+
+# Conditionals with comparison
+test_conditional_with_session_name "#{?#{==:#{session_name},Summer},abc,xyz}" "abc" "xyz"
+# Conditionals with comparison and escaped commas
+$TMUX rename-session ","
+test_format "#{?#{==:#,,#{session_name}},abc,xyz}" "abc"
+$TMUX rename-session "Summer" # reset to default
+
+# Conditional in conditional
+test_conditional_with_pane_in_mode "#{?pane_in_mode,#{?#{==:#{session_name},Summer},ABC,XYZ},xyz}" "ABC" "xyz"
+test_conditional_with_session_name "#{?pane_in_mode,#{?#{==:#{session_name},Summer},ABC,XYZ},xyz}" "xyz" "xyz"
+
+test_conditional_with_pane_in_mode "#{?pane_in_mode,abc,#{?#{==:#{session_name},Summer},ABC,XYZ}}" "abc" "ABC"
+test_conditional_with_session_name "#{?pane_in_mode,abc,#{?#{==:#{session_name},Summer},ABC,XYZ}}" "ABC" "XYZ"
+
+# Some fancy stackings
+test_conditional_with_pane_in_mode "#{?#{==:#{?pane_in_mode,#{session_name},#(echo Spring)},Summer},abc,xyz}" "abc" "xyz"
+
+
+
+# Format test for the literal option
+# Note: The behavior for #{l:...} with escapes is sometimes weird as #{l:...}
+# respects the escapes.
+test_format "#{l:#{}}" "#{}"
+test_format "#{l:#{pane_in_mode}}" "#{pane_in_mode}"
+test_format "#{l:#{?pane_in_mode,#{?#{==:#{session_name},Summer},ABC,XYZ},xyz}}" "#{?pane_in_mode,#{?#{==:#{session_name},Summer},ABC,XYZ},xyz}"
+
+# With escapes (which escape but are returned literally)
+test_format "#{l:##{}" "##{"
+test_format "#{l:#{#}}}" "#{#}}"
+
+# Invalid formats:
+#test_format "#{l:#{}" ""
+#test_format "#{l:#{#}}" ""
+
+exit 0

regress/kill-session-process-exit.sh

@@ -9,9 +9,9 @@ TERM=screen
 TMUX="$TEST_TMUX -Ltest"
 $TMUX kill-server 2>/dev/null
 
-$TMUX new -d 'sleep 1000' || exit 1
+$TMUX -f/dev/null new -d 'sleep 1000' || exit 1
 P=$($TMUX display -pt0:0.0 '#{pane_pid}')
-$TMUX new -d || exit 1
+$TMUX -f/dev/null new -d || exit 1
 sleep 1
 $TMUX kill-session -t0:
 sleep 1

regress/new-session-size.sh

@@ -14,13 +14,13 @@ trap "rm -f $TMP" 0 1 15
 
 $TMUX -f/dev/null new -d </dev/null || exit 1
 sleep 1
-$TMUX ls -F "#{session_width} #{session_height}" >$TMP
+$TMUX ls -F "#{window_width} #{window_height}" >$TMP
 printf "80 24\n"|cmp -s $TMP - || exit 1
 $TMUX kill-server 2>/dev/null
 
 $TMUX -f/dev/null new -d -x 100 -y 50 </dev/null || exit 1
 sleep 1
-$TMUX ls -F "#{session_width} #{session_height}" >$TMP
+$TMUX ls -F "#{window_width} #{window_height}" >$TMP
 printf "100 50\n"|cmp -s $TMP - || exit 1
 $TMUX kill-server 2>/dev/null
 

resize.c

@@ -22,151 +22,234 @@
 
 #include "tmux.h"
 
-/*
+void
- * Recalculate window and session sizes.
+resize_window(struct window *w, u_int sx, u_int sy)
- *
+{
- * Every session has the size of the smallest client it is attached to and
+	int	zoomed;
- * every window the size of the smallest session it is attached to.
+
- *
+	/* Check size limits. */
- * So, when a client is resized or a session attached to or detached from a
+	if (sx < WINDOW_MINIMUM)
- * client, the window sizes must be recalculated. For each session, find the
+		sx = WINDOW_MINIMUM;
- * smallest client it is attached to, and resize it to that size. Then for
+	if (sx > WINDOW_MAXIMUM)
- * every window, find the smallest session it is attached to, resize it to that
+		sx = WINDOW_MAXIMUM;
- * size and clear and redraw every client with it as the current window.
+	if (sy < WINDOW_MINIMUM)
- *
+		sy = WINDOW_MINIMUM;
- * This is quite inefficient - better/additional data structures are needed
+	if (sy > WINDOW_MAXIMUM)
- * to make it better.
+		sy = WINDOW_MAXIMUM;
- *
+
- * As a side effect, this function updates the SESSION_UNATTACHED flag. This
+	/* If the window is zoomed, unzoom. */
- * flag is necessary to make sure unattached sessions do not limit the size of
+	zoomed = w->flags & WINDOW_ZOOMED;
- * windows that are attached both to them and to other (attached) sessions.
+	if (zoomed)
- */
+		window_unzoom(w);
+
+	/* Resize the layout first. */
+	layout_resize(w, sx, sy);
+
+	/* Resize the window, it can be no smaller than the layout. */
+	if (sx < w->layout_root->sx)
+		sx = w->layout_root->sx;
+	if (sy < w->layout_root->sy)
+		sy = w->layout_root->sy;
+	window_resize(w, sx, sy);
+	log_debug("%s: @%u resized to %u,%u; layout %u,%u", __func__, w->id,
+	    sx, sy, w->layout_root->sx, w->layout_root->sy);
+
+	/* Restore the window zoom state. */
+	if (zoomed)
+		window_zoom(w->active);
+
+	tty_update_window_offset(w);
+	server_redraw_window(w);
+	notify_window("window-layout-changed", w);
+}
+
+static int
+ignore_client_size(struct client *c)
+{
+	if (c->session == NULL)
+		return (1);
+	if (c->flags & CLIENT_NOSIZEFLAGS)
+		return (1);
+	if ((c->flags & CLIENT_CONTROL) && (~c->flags & CLIENT_SIZECHANGED))
+		return (1);
+	return (0);
+}
+
+void
+default_window_size(struct session *s, struct window *w, u_int *sx, u_int *sy,
+    int type)
+{
+	struct client	*c;
+	u_int		 cx, cy;
+	const char	*value;
+
+	if (type == -1)
+		type = options_get_number(global_w_options, "window-size");
+	if (type == WINDOW_SIZE_MANUAL)
+		goto manual;
+
+	if (type == WINDOW_SIZE_LARGEST) {
+		*sx = *sy = 0;
+		TAILQ_FOREACH(c, &clients, entry) {
+			if (ignore_client_size(c))
+				continue;
+			if (w != NULL && !session_has(c->session, w))
+				continue;
+			if (w == NULL && c->session != s)
+				continue;
+
+			cx = c->tty.sx;
+			cy = c->tty.sy - status_line_size(c);
+
+			if (cx > *sx)
+				*sx = cx;
+			if (cy > *sy)
+				*sy = cy;
+		}
+		if (*sx == 0 || *sy == 0)
+			goto manual;
+	} else {
+		*sx = *sy = UINT_MAX;
+		TAILQ_FOREACH(c, &clients, entry) {
+			if (ignore_client_size(c))
+				continue;
+			if (w != NULL && !session_has(c->session, w))
+				continue;
+			if (w == NULL && c->session != s)
+				continue;
+
+			cx = c->tty.sx;
+			cy = c->tty.sy - status_line_size(c);
+
+			if (cx < *sx)
+				*sx = cx;
+			if (cy < *sy)
+				*sy = cy;
+		}
+		if (*sx == UINT_MAX || *sy == UINT_MAX)
+			goto manual;
+	}
+	goto done;
+
+manual:
+	value = options_get_string(s->options, "default-size");
+	if (sscanf(value, "%ux%u", sx, sy) != 2) {
+		*sx = 80;
+		*sy = 24;
+	}
+
+done:
+	if (*sx < WINDOW_MINIMUM)
+		*sx = WINDOW_MINIMUM;
+	if (*sx > WINDOW_MAXIMUM)
+		*sx = WINDOW_MAXIMUM;
+	if (*sy < WINDOW_MINIMUM)
+		*sy = WINDOW_MINIMUM;
+	if (*sy > WINDOW_MAXIMUM)
+		*sy = WINDOW_MAXIMUM;
+}
 
 void
 recalculate_sizes(void)
 {
-	struct session		*s;
+	struct session	*s;
-	struct client		*c;
+	struct client	*c;
-	struct window		*w;
+	struct window	*w;
-	struct window_pane	*wp;
+	u_int		 sx, sy, cx, cy;
-	u_int			 ssx, ssy, has, limit, lines;
+	int		 type, current, has, changed;
-	int			 flag, is_zoomed, forced;
 
+	/*
+	 * Clear attached count and update saved status line information for
+	 * each session.
+	 */
 	RB_FOREACH(s, sessions, &sessions) {
-		lines = status_line_size(s);
-
 		s->attached = 0;
-		ssx = ssy = UINT_MAX;
+		status_update_cache(s);
-		TAILQ_FOREACH(c, &clients, entry) {
-			if (c->flags & CLIENT_SUSPENDED)
-				continue;
-			if ((c->flags & (CLIENT_CONTROL|CLIENT_SIZECHANGED)) ==
-			    CLIENT_CONTROL)
-				continue;
-			if (c->session == s) {
-				if (c->tty.sx < ssx)
-					ssx = c->tty.sx;
-				c->flags &= ~CLIENT_STATUSOFF;
-				if (lines != 0 && lines + PANE_MINIMUM > c->tty.sy)
-					c->flags |= CLIENT_STATUSOFF;
-				if ((~c->flags & CLIENT_STATUSOFF) &&
-				    !(c->flags & CLIENT_CONTROL) &&
-				    c->tty.sy > lines &&
-				    c->tty.sy - lines < ssy)
-					ssy = c->tty.sy - lines;
-				else if (c->tty.sy < ssy)
-					ssy = c->tty.sy;
-				s->attached++;
-			}
-		}
-		if (ssx == UINT_MAX || ssy == UINT_MAX) {
-			s->flags |= SESSION_UNATTACHED;
-			continue;
-		}
-		s->flags &= ~SESSION_UNATTACHED;
-
-		if (lines != 0 && ssy == 0)
-			ssy = lines;
-
-		if (s->sx == ssx && s->sy == ssy)
-			continue;
-
-		log_debug("session $%u size %u,%u (was %u,%u)", s->id, ssx, ssy,
-		    s->sx, s->sy);
-
-		s->sx = ssx;
-		s->sy = ssy;
-
-		status_update_saved(s);
 	}
 
+	/*
+	 * Increment attached count and check the status line size for each
+	 * client.
+	 */
+	TAILQ_FOREACH(c, &clients, entry) {
+		if (ignore_client_size(c))
+			continue;
+		if (c->tty.sy <= status_line_size(c))
+			c->flags |= CLIENT_STATUSOFF;
+		else
+			c->flags &= ~CLIENT_STATUSOFF;
+		c->session->attached++;
+	}
+
+	/* Walk each window and adjust the size. */
 	RB_FOREACH(w, windows, &windows) {
 		if (w->active == NULL)
 			continue;
-		flag = options_get_number(w->options, "aggressive-resize");
+		log_debug("%s: @%u is %u,%u", __func__, w->id, w->sx, w->sy);
 
-		ssx = ssy = UINT_MAX;
+		type = options_get_number(w->options, "window-size");
-		RB_FOREACH(s, sessions, &sessions) {
+		if (type == WINDOW_SIZE_MANUAL)
-			if (s->flags & SESSION_UNATTACHED)
+			continue;
-				continue;
+		current = options_get_number(w->options, "aggressive-resize");
-			if (flag)
+
-				has = s->curw->window == w;
+		changed = 1;
-			else
+		if (type == WINDOW_SIZE_LARGEST) {
-				has = session_has(s, w);
+			sx = sy = 0;
-			if (has) {
+			TAILQ_FOREACH(c, &clients, entry) {
-				if (s->sx < ssx)
+				if (ignore_client_size(c))
-					ssx = s->sx;
+					continue;
-				if (s->sy < ssy)
+				s = c->session;
-					ssy = s->sy;
+
+				if (current)
+					has = (s->curw->window == w);
+				else
+					has = session_has(s, w);
+				if (!has)
+					continue;
+
+				cx = c->tty.sx;
+				cy = c->tty.sy - status_line_size(c);
+
+				if (cx > sx)
+					sx = cx;
+				if (cy > sy)
+					sy = cy;
 			}
+			if (sx == 0 || sy == 0)
+				changed = 0;
+		} else {
+			sx = sy = UINT_MAX;
+			TAILQ_FOREACH(c, &clients, entry) {
+				if (ignore_client_size(c))
+					continue;
+				s = c->session;
+
+				if (current)
+					has = (s->curw->window == w);
+				else
+					has = session_has(s, w);
+				if (!has)
+					continue;
+
+				cx = c->tty.sx;
+				cy = c->tty.sy - status_line_size(c);
+
+				if (cx < sx)
+					sx = cx;
+				if (cy < sy)
+					sy = cy;
+			}
+			if (sx == UINT_MAX || sy == UINT_MAX)
+				changed = 0;
 		}
-		if (ssx == UINT_MAX || ssy == UINT_MAX)
+		if (w->sx == sx && w->sy == sy)
+			changed = 0;
+
+		if (!changed) {
+			tty_update_window_offset(w);
 			continue;
-
-		forced = 0;
-		limit = options_get_number(w->options, "force-width");
-		if (limit >= PANE_MINIMUM && ssx > limit) {
-			ssx = limit;
-			forced |= WINDOW_FORCEWIDTH;
 		}
-		limit = options_get_number(w->options, "force-height");
+		log_debug("%s: @%u changed to %u,%u", __func__, w->id, sx, sy);
-		if (limit >= PANE_MINIMUM && ssy > limit) {
+		resize_window(w, sx, sy);
-			ssy = limit;
-			forced |= WINDOW_FORCEHEIGHT;
-		}
-
-		if (w->sx == ssx && w->sy == ssy)
-			continue;
-		log_debug("window @%u size %u,%u (was %u,%u)", w->id, ssx, ssy,
-		    w->sx, w->sy);
-
-		w->flags &= ~(WINDOW_FORCEWIDTH|WINDOW_FORCEHEIGHT);
-		w->flags |= forced;
-
-		is_zoomed = w->flags & WINDOW_ZOOMED;
-		if (is_zoomed)
-			window_unzoom(w);
-		layout_resize(w, ssx, ssy);
-		window_resize(w, ssx, ssy);
-		if (is_zoomed && window_pane_visible(w->active))
-			window_zoom(w->active);
-
-		/*
-		 * If the current pane is now not visible, move to the next
-		 * that is.
-		 */
-		wp = w->active;
-		while (!window_pane_visible(w->active)) {
-			w->active = TAILQ_PREV(w->active, window_panes, entry);
-			if (w->active == NULL)
-				w->active = TAILQ_LAST(&w->panes, window_panes);
-			if (w->active == wp)
-			       break;
-		}
-		if (w->active == w->last)
-			w->last = NULL;
-
-		server_redraw_window(w);
-		notify_window("window-layout-changed", w);
 	}
 }

screen-redraw.c

@@ -23,22 +23,27 @@
 
 #include "tmux.h"
 
-static int	screen_redraw_cell_border1(struct window_pane *, u_int, u_int);
+struct screen_redraw_ctx {
-static int	screen_redraw_cell_border(struct client *, u_int, u_int);
+	struct client	*c;
-static int	screen_redraw_check_cell(struct client *, u_int, u_int, int,
-		    struct window_pane **);
-static int	screen_redraw_check_is(u_int, u_int, int, int, struct window *,
-		    struct window_pane *, struct window_pane *);
 
-static int 	screen_redraw_make_pane_status(struct client *, struct window *,
+	u_int		 lines;
+	int		 top;
+
+	int		 pane_status;
+
+	u_int		 sx;
+	u_int		 sy;
+	u_int		 ox;
+	u_int		 oy;
+};
+
+static void	screen_redraw_draw_borders(struct screen_redraw_ctx *);
+static void	screen_redraw_draw_panes(struct screen_redraw_ctx *);
+static void	screen_redraw_draw_status(struct screen_redraw_ctx *);
+static void	screen_redraw_draw_pane(struct screen_redraw_ctx *,
+		    struct window_pane *);
+static void	screen_redraw_draw_number(struct screen_redraw_ctx *,
 		    struct window_pane *);
-static void	screen_redraw_draw_pane_status(struct client *, int);
-
-static void	screen_redraw_draw_borders(struct client *, int, u_int, u_int);
-static void	screen_redraw_draw_panes(struct client *, u_int, u_int);
-static void	screen_redraw_draw_status(struct client *, u_int, u_int);
-static void	screen_redraw_draw_number(struct client *, struct window_pane *,
-		    u_int, u_int);
 
 #define CELL_INSIDE 0
 #define CELL_LEFTRIGHT 1
@@ -269,8 +274,8 @@ screen_redraw_make_pane_status(struct client *c, struct window *w,
 	struct grid_cell	 gc;
 	const char		*fmt;
 	struct format_tree	*ft;
-	char			*out;
+	char			*expanded;
-	size_t			 outlen;
+	u_int			 width, i;
 	struct screen_write_ctx	 ctx;
 	struct screen		 old;
 
@@ -284,27 +289,30 @@ screen_redraw_make_pane_status(struct client *c, struct window *w,
 	ft = format_create(c, NULL, FORMAT_PANE|wp->id, 0);
 	format_defaults(ft, c, NULL, NULL, wp);
 
+	expanded = format_expand_time(ft, fmt);
+	if (wp->sx < 4)
+		wp->status_size = width = 0;
+	else
+		wp->status_size = width = wp->sx - 4;
+
 	memcpy(&old, &wp->status_screen, sizeof old);
-	screen_init(&wp->status_screen, wp->sx, 1, 0);
+	screen_init(&wp->status_screen, width, 1, 0);
 	wp->status_screen.mode = 0;
 
-	out = format_expand(ft, fmt);
-	outlen = screen_write_cstrlen("%s", out);
-	if (outlen > wp->sx - 4)
-		outlen = wp->sx - 4;
-	screen_resize(&wp->status_screen, outlen, 1, 0);
-
 	screen_write_start(&ctx, NULL, &wp->status_screen);
-	screen_write_cursormove(&ctx, 0, 0);
+
-	screen_write_clearline(&ctx, 8);
+	gc.attr |= GRID_ATTR_CHARSET;
-	screen_write_cnputs(&ctx, outlen, &gc, "%s", out);
+	for (i = 0; i < width; i++)
+		screen_write_putc(&ctx, &gc, 'q');
+	gc.attr &= ~GRID_ATTR_CHARSET;
+
+	screen_write_cursormove(&ctx, 0, 0, 0);
+	format_draw(&ctx, &gc, width, expanded, NULL);
 	screen_write_stop(&ctx);
 
-	free(out);
+	free(expanded);
 	format_free(ft);
 
-	wp->status_size = outlen;
-
 	if (grid_compare(wp->status_screen.grid, old.grid) == 0) {
 		screen_free(&old);
 		return (0);
@@ -315,35 +323,67 @@ screen_redraw_make_pane_status(struct client *c, struct window *w,
 
 /* Draw pane status. */
 static void
-screen_redraw_draw_pane_status(struct client *c, int pane_status)
+screen_redraw_draw_pane_status(struct screen_redraw_ctx *ctx)
 {
+	struct client		*c = ctx->c;
 	struct window		*w = c->session->curw->window;
-	struct options		*oo = c->session->options;
 	struct tty		*tty = &c->tty;
 	struct window_pane	*wp;
-	int			 spos;
+	struct screen		*s;
-	u_int			 yoff;
+	u_int			 i, x, width, xoff, yoff, size;
+
+	log_debug("%s: %s @%u", __func__, c->name, w->id);
 
-	spos = options_get_number(oo, "status-position");
 	TAILQ_FOREACH(wp, &w->panes, entry) {
 		if (!window_pane_visible(wp))
 			continue;
-		if (pane_status == CELL_STATUS_TOP)
+		s = &wp->status_screen;
+
+		size = wp->status_size;
+		if (ctx->pane_status == CELL_STATUS_TOP)
 			yoff = wp->yoff - 1;
 		else
 			yoff = wp->yoff + wp->sy;
-		if (spos == 0)
+		xoff = wp->xoff + 2;
-			yoff += 1;
 
-		tty_draw_line(tty, NULL, &wp->status_screen, 0, wp->xoff + 2,
+		if (xoff + size <= ctx->ox ||
-		    yoff);
+		    xoff >= ctx->ox + ctx->sx ||
+		    yoff < ctx->oy ||
+		    yoff >= ctx->oy + ctx->sy)
+			continue;
+
+		if (xoff >= ctx->ox && xoff + size <= ctx->ox + ctx->sx) {
+			/* All visible. */
+			i = 0;
+			x = xoff - ctx->ox;
+			width = size;
+		} else if (xoff < ctx->ox && xoff + size > ctx->ox + ctx->sx) {
+			/* Both left and right not visible. */
+			i = ctx->ox;
+			x = 0;
+			width = ctx->sx;
+		} else if (xoff < ctx->ox) {
+			/* Left not visible. */
+			i = ctx->ox - xoff;
+			x = 0;
+			width = size - i;
+		} else {
+			/* Right not visible. */
+			i = 0;
+			x = xoff - ctx->ox;
+			width = size - x;
+		}
+
+		if (ctx->top)
+			yoff += ctx->lines;
+		tty_draw_line(tty, NULL, s, i, 0, width, x, yoff - ctx->oy);
 	}
 	tty_cursor(tty, 0, 0);
 }
 
 /* Update status line and change flags if unchanged. */
-void
+static int
-screen_redraw_update(struct client *c)
+screen_redraw_update(struct client *c, int flags)
 {
 	struct window		*w = c->session->curw->window;
 	struct window_pane	*wp;
@@ -356,8 +396,8 @@ screen_redraw_update(struct client *c)
 		redraw = status_prompt_redraw(c);
 	else
 		redraw = status_redraw(c);
-	if (!redraw)
+	if (!redraw && (~flags & CLIENT_REDRAWSTATUSALWAYS))
-		c->flags &= ~CLIENT_STATUS;
+		flags &= ~CLIENT_REDRAWSTATUS;
 
 	if (options_get_number(wo, "pane-border-status") != CELL_STATUS_OFF) {
 		redraw = 0;
@@ -366,119 +406,128 @@ screen_redraw_update(struct client *c)
 				redraw = 1;
 		}
 		if (redraw)
-			c->flags |= CLIENT_BORDERS;
+			flags |= CLIENT_REDRAWBORDERS;
 	}
+	return (flags);
+}
+
+/* Set up redraw context. */
+static void
+screen_redraw_set_context(struct client *c, struct screen_redraw_ctx *ctx)
+{
+	struct session	*s = c->session;
+	struct options	*oo = s->options;
+	struct window	*w = s->curw->window;
+	struct options	*wo = w->options;
+
+	memset(ctx, 0, sizeof *ctx);
+	ctx->c = c;
+
+	ctx->lines = status_line_size(c);
+	if (c->message_string != NULL || c->prompt_string != NULL)
+		ctx->lines = (ctx->lines == 0) ? 1 : ctx->lines;
+	if (ctx->lines != 0 && options_get_number(oo, "status-position") == 0)
+		ctx->top = 1;
+	ctx->pane_status = options_get_number(wo, "pane-border-status");
+
+	tty_window_offset(&c->tty, &ctx->ox, &ctx->oy, &ctx->sx, &ctx->sy);
+
+	log_debug("%s: %s @%u ox=%u oy=%u sx=%u sy=%u %u/%d", __func__, c->name,
+	    w->id, ctx->ox, ctx->oy, ctx->sx, ctx->sy, ctx->lines, ctx->top);
 }
 
 /* Redraw entire screen. */
 void
-screen_redraw_screen(struct client *c, int draw_panes, int draw_status,
+screen_redraw_screen(struct client *c)
-    int draw_borders)
 {
-	struct options		*oo = c->session->options;
+	struct screen_redraw_ctx	ctx;
-	struct tty		*tty = &c->tty;
+	int				flags;
-	struct window		*w = c->session->curw->window;
-	struct options		*wo = w->options;
-	u_int			 top, lines;
-	int	 		 position, pane_status;
 
 	if (c->flags & CLIENT_SUSPENDED)
 		return;
 
-	if (c->flags & CLIENT_STATUSOFF)
+	flags = screen_redraw_update(c, c->flags);
-		lines = 0;
+	screen_redraw_set_context(c, &ctx);
-	else
-		lines = status_line_size(c->session);
-	if (c->message_string != NULL || c->prompt_string != NULL)
-		lines = (lines == 0) ? 1 : lines;
 
-	position = options_get_number(oo, "status-position");
+	if (flags & (CLIENT_REDRAWWINDOW|CLIENT_REDRAWBORDERS)) {
-	if (lines != 0 && position == 0)
+		if (ctx.pane_status != CELL_STATUS_OFF)
-		top = 1;
+			screen_redraw_draw_pane_status(&ctx);
-	else
+		screen_redraw_draw_borders(&ctx);
-		top = 0;
-
-	if (lines == 0)
-		draw_status = 0;
-
-	if (draw_borders) {
-		pane_status = options_get_number(wo, "pane-border-status");
-		screen_redraw_draw_borders(c, pane_status, lines, top);
-		if (pane_status != CELL_STATUS_OFF)
-			screen_redraw_draw_pane_status(c, pane_status);
 	}
-	if (draw_panes)
+	if (flags & CLIENT_REDRAWWINDOW)
-		screen_redraw_draw_panes(c, lines, top);
+		screen_redraw_draw_panes(&ctx);
-	if (draw_status)
+	if (ctx.lines != 0 &&
-		screen_redraw_draw_status(c, lines, top);
+	    (flags & (CLIENT_REDRAWSTATUS|CLIENT_REDRAWSTATUSALWAYS)))
-	tty_reset(tty);
+		screen_redraw_draw_status(&ctx);
+	tty_reset(&c->tty);
 }
 
-/* Draw a single pane. */
+/* Redraw a single pane. */
 void
 screen_redraw_pane(struct client *c, struct window_pane *wp)
 {
-	u_int	i, yoff;
+	struct screen_redraw_ctx	 ctx;
 
 	if (!window_pane_visible(wp))
 		return;
 
-	yoff = wp->yoff;
+	screen_redraw_set_context(c, &ctx);
-	if (status_at_line(c) == 0)
-		yoff += status_line_size(c->session);
 
-	log_debug("%s: redraw pane %%%u (at %u,%u)", c->name, wp->id,
+	screen_redraw_draw_pane(&ctx, wp);
-	    wp->xoff, yoff);
-
-	for (i = 0; i < wp->sy; i++)
-		tty_draw_pane(&c->tty, wp, i, wp->xoff, yoff);
 	tty_reset(&c->tty);
 }
 
+/* Draw a border cell. */
+static void
+screen_redraw_draw_borders_cell(struct screen_redraw_ctx *ctx, u_int i, u_int j,
+    struct grid_cell *m_active_gc, struct grid_cell *active_gc,
+    struct grid_cell *m_other_gc, struct grid_cell *other_gc)
+{
+	struct client		*c = ctx->c;
+	struct session		*s = c->session;
+	struct window		*w = s->curw->window;
+	struct tty		*tty = &c->tty;
+	struct window_pane	*wp;
+	struct window_pane	*active = w->active;
+	struct window_pane	*marked = marked_pane.wp;
+	u_int			 type, x = ctx->ox + i, y = ctx->oy + j;
+	int			 flag, pane_status = ctx->pane_status;
+
+	type = screen_redraw_check_cell(c, x, y, pane_status, &wp);
+	if (type == CELL_INSIDE)
+		return;
+	flag = screen_redraw_check_is(x, y, type, pane_status, w, active, wp);
+
+	if (server_is_marked(s, s->curw, marked_pane.wp) &&
+	    screen_redraw_check_is(x, y, type, pane_status, w, marked, wp)) {
+		if (flag)
+			tty_attributes(tty, m_active_gc, NULL);
+		else
+			tty_attributes(tty, m_other_gc, NULL);
+	} else if (flag)
+		tty_attributes(tty, active_gc, NULL);
+	else
+		tty_attributes(tty, other_gc, NULL);
+	if (ctx->top)
+		tty_cursor(tty, i, ctx->lines + j);
+	else
+		tty_cursor(tty, i, j);
+	tty_putc(tty, CELL_BORDERS[type]);
+}
+
 /* Draw the borders. */
 static void
-screen_redraw_draw_borders(struct client *c, int pane_status, u_int lines,
+screen_redraw_draw_borders(struct screen_redraw_ctx *ctx)
-    u_int top)
 {
+	struct client		*c = ctx->c;
 	struct session		*s = c->session;
 	struct window		*w = s->curw->window;
-	struct options		*oo = w->options;
 	struct tty		*tty = &c->tty;
-	struct window_pane	*wp;
+	struct options		*oo = w->options;
 	struct grid_cell	 m_active_gc, active_gc, m_other_gc, other_gc;
-	struct grid_cell	 msg_gc;
+	u_int		 	 i, j;
-	u_int		 	 i, j, type, msgx = 0, msgy = 0;
-	int			 active, small, flags;
-	char			 msg[256];
-	const char		*tmp;
-	size_t			 msglen = 0;
 
-	small = (tty->sy - lines + top > w->sy) || (tty->sx > w->sx);
+	log_debug("%s: %s @%u", __func__, c->name, w->id);
-	if (small) {
-		flags = w->flags & (WINDOW_FORCEWIDTH|WINDOW_FORCEHEIGHT);
-		if (flags == (WINDOW_FORCEWIDTH|WINDOW_FORCEHEIGHT))
-			tmp = "force-width, force-height";
-		else if (flags == WINDOW_FORCEWIDTH)
-			tmp = "force-width";
-		else if (flags == WINDOW_FORCEHEIGHT)
-			tmp = "force-height";
-		else if (c->flags & CLIENT_STATUSOFF)
-			tmp = "status line";
-		else
-			tmp = "a smaller client";
-		xsnprintf(msg, sizeof msg, "(size %ux%u from %s)",
-		    w->sx, w->sy, tmp);
-		msglen = strlen(msg);
-
-		if (tty->sy - 1 - lines + top > w->sy && tty->sx >= msglen) {
-			msgx = tty->sx - msglen;
-			msgy = tty->sy - 1 - lines + top;
-		} else if (tty->sx - w->sx > msglen) {
-			msgx = tty->sx - msglen;
-			msgy = tty->sy - 1 - lines + top;
-		} else
-			small = 0;
-	}
 
 	style_apply(&other_gc, oo, "pane-border-style");
 	style_apply(&active_gc, oo, "pane-active-border-style");
@@ -489,114 +538,181 @@ screen_redraw_draw_borders(struct client *c, int pane_status, u_int lines,
 	memcpy(&m_active_gc, &active_gc, sizeof m_active_gc);
 	m_active_gc.attr ^= GRID_ATTR_REVERSE;
 
-	for (j = 0; j < tty->sy - lines; j++) {
+	for (j = 0; j < tty->sy - ctx->lines; j++) {
 		for (i = 0; i < tty->sx; i++) {
-			type = screen_redraw_check_cell(c, i, j, pane_status,
+			screen_redraw_draw_borders_cell(ctx, i, j,
-			    &wp);
+			    &m_active_gc, &active_gc, &m_other_gc, &other_gc);
-			if (type == CELL_INSIDE)
-				continue;
-			if (type == CELL_OUTSIDE && small &&
-			    i > msgx && j == msgy)
-				continue;
-			active = screen_redraw_check_is(i, j, type, pane_status,
-			    w, w->active, wp);
-			if (server_is_marked(s, s->curw, marked_pane.wp) &&
-			    screen_redraw_check_is(i, j, type, pane_status, w,
-			    marked_pane.wp, wp)) {
-				if (active)
-					tty_attributes(tty, &m_active_gc, NULL);
-				else
-					tty_attributes(tty, &m_other_gc, NULL);
-			} else if (active)
-				tty_attributes(tty, &active_gc, NULL);
-			else
-				tty_attributes(tty, &other_gc, NULL);
-			if (top)
-				tty_cursor(tty, i, lines + j);
-			else
-				tty_cursor(tty, i, j);
-			tty_putc(tty, CELL_BORDERS[type]);
 		}
 	}
-
-	if (small) {
-		memcpy(&msg_gc, &grid_default_cell, sizeof msg_gc);
-		tty_attributes(tty, &msg_gc, NULL);
-		tty_cursor(tty, msgx, msgy);
-		tty_puts(tty, msg);
-	}
 }
 
 /* Draw the panes. */
 static void
-screen_redraw_draw_panes(struct client *c, u_int lines, u_int top)
+screen_redraw_draw_panes(struct screen_redraw_ctx *ctx)
 {
+	struct client		*c = ctx->c;
 	struct window		*w = c->session->curw->window;
-	struct tty		*tty = &c->tty;
 	struct window_pane	*wp;
-	u_int		 	 i, y;
 
-	if (top)
+	log_debug("%s: %s @%u", __func__, c->name, w->id);
-		y = lines;
-	else
-		y = 0;
 
 	TAILQ_FOREACH(wp, &w->panes, entry) {
 		if (!window_pane_visible(wp))
 			continue;
-		for (i = 0; i < wp->sy; i++)
+		screen_redraw_draw_pane(ctx, wp);
-			tty_draw_pane(tty, wp, i, wp->xoff, y + wp->yoff);
 		if (c->flags & CLIENT_IDENTIFY)
-			screen_redraw_draw_number(c, wp, lines, top);
+			screen_redraw_draw_number(ctx, wp);
 	}
 }
 
 /* Draw the status line. */
 static void
-screen_redraw_draw_status(struct client *c, u_int lines, u_int top)
+screen_redraw_draw_status(struct screen_redraw_ctx *ctx)
 {
+	struct client	*c = ctx->c;
+	struct window	*w = c->session->curw->window;
 	struct tty	*tty = &c->tty;
+	struct screen	*s = c->status.active;
 	u_int		 i, y;
 
-	if (top)
+	log_debug("%s: %s @%u", __func__, c->name, w->id);
+
+	if (ctx->top)
 		y = 0;
 	else
-		y = tty->sy - lines;
+		y = c->tty.sy - ctx->lines;
-	for (i = 0; i < lines; i++)
+	for (i = 0; i < ctx->lines; i++)
-		tty_draw_line(tty, NULL, &c->status.status, i, 0, y);
+		tty_draw_line(tty, NULL, s, 0, i, UINT_MAX, 0, y + i);
+}
+
+/* Draw one pane. */
+static void
+screen_redraw_draw_pane(struct screen_redraw_ctx *ctx, struct window_pane *wp)
+{
+	struct client	*c = ctx->c;
+	struct window	*w = c->session->curw->window;
+	struct tty	*tty = &c->tty;
+	struct screen	*s;
+	u_int		 i, j, top, x, y, width;
+
+	log_debug("%s: %s @%u %%%u", __func__, c->name, w->id, wp->id);
+
+	if (wp->xoff + wp->sx <= ctx->ox || wp->xoff >= ctx->ox + ctx->sx)
+		return;
+	if (ctx->top)
+		top = ctx->lines;
+	else
+		top = 0;
+
+	s = wp->screen;
+	for (j = 0; j < wp->sy; j++) {
+		if (wp->yoff + j < ctx->oy || wp->yoff + j >= ctx->oy + ctx->sy)
+			continue;
+		y = top + wp->yoff + j - ctx->oy;
+
+		if (wp->xoff >= ctx->ox &&
+		    wp->xoff + wp->sx <= ctx->ox + ctx->sx) {
+			/* All visible. */
+			i = 0;
+			x = wp->xoff - ctx->ox;
+			width = wp->sx;
+		} else if (wp->xoff < ctx->ox &&
+		    wp->xoff + wp->sx > ctx->ox + ctx->sx) {
+			/* Both left and right not visible. */
+			i = ctx->ox;
+			x = 0;
+			width = ctx->sx;
+		} else if (wp->xoff < ctx->ox) {
+			/* Left not visible. */
+			i = ctx->ox - wp->xoff;
+			x = 0;
+			width = wp->sx - i;
+		} else {
+			/* Right not visible. */
+			i = 0;
+			x = wp->xoff - ctx->ox;
+			width = ctx->sx - x;
+		}
+		log_debug("%s: %s %%%u line %u,%u at %u,%u, width %u",
+		    __func__, c->name, wp->id, i, j, x, y, width);
+
+		tty_draw_line(tty, wp, s, i, j, width, x, y);
+	}
 }
 
 /* Draw number on a pane. */
 static void
-screen_redraw_draw_number(struct client *c, struct window_pane *wp,
+screen_redraw_draw_number(struct screen_redraw_ctx *ctx, struct window_pane *wp)
-    u_int lines, u_int top)
 {
+	struct client		*c = ctx->c;
 	struct tty		*tty = &c->tty;
 	struct session		*s = c->session;
 	struct options		*oo = s->options;
 	struct window		*w = wp->window;
 	struct grid_cell	 gc;
-	u_int			 idx, px, py, i, j, xoff, yoff;
+	u_int			 idx, px, py, i, j, xoff, yoff, sx, sy;
 	int			 colour, active_colour;
 	char			 buf[16], *ptr;
 	size_t			 len;
 
+	if (wp->xoff + wp->sx <= ctx->ox ||
+	    wp->xoff >= ctx->ox + ctx->sx ||
+	    wp->yoff + wp->sy <= ctx->oy ||
+	    wp->yoff >= ctx->oy + ctx->sy)
+		return;
+
+	if (wp->xoff >= ctx->ox && wp->xoff + wp->sx <= ctx->ox + ctx->sx) {
+		/* All visible. */
+		xoff = wp->xoff - ctx->ox;
+		sx = wp->sx;
+	} else if (wp->xoff < ctx->ox &&
+	    wp->xoff + wp->sx > ctx->ox + ctx->sx) {
+		/* Both left and right not visible. */
+		xoff = 0;
+		sx = ctx->sx;
+	} else if (wp->xoff < ctx->ox) {
+		/* Left not visible. */
+		xoff = 0;
+		sx = wp->sx - (ctx->ox - wp->xoff);
+	} else {
+		/* Right not visible. */
+		xoff = wp->xoff - ctx->ox;
+		sx = wp->sx - xoff;
+	}
+	if (wp->yoff >= ctx->oy && wp->yoff + wp->sy <= ctx->oy + ctx->sy) {
+		/* All visible. */
+		yoff = wp->yoff - ctx->oy;
+		sy = wp->sy;
+	} else if (wp->yoff < ctx->oy &&
+	    wp->yoff + wp->sy > ctx->oy + ctx->sy) {
+		/* Both top and bottom not visible. */
+		yoff = 0;
+		sy = ctx->sy;
+	} else if (wp->yoff < ctx->oy) {
+		/* Top not visible. */
+		yoff = 0;
+		sy = wp->sy - (ctx->oy - wp->yoff);
+	} else {
+		/* Bottom not visible. */
+		yoff = wp->yoff - ctx->oy;
+		sy = wp->sy - yoff;
+	}
+
+	if (ctx->top)
+		yoff += ctx->lines;
+	px = sx / 2;
+	py = sy / 2;
+
 	if (window_pane_index(wp, &idx) != 0)
 		fatalx("index not found");
 	len = xsnprintf(buf, sizeof buf, "%u", idx);
 
-	if (wp->sx < len)
+	if (sx < len)
 		return;
 	colour = options_get_number(oo, "display-panes-colour");
 	active_colour = options_get_number(oo, "display-panes-active-colour");
 
-	px = wp->sx / 2; py = wp->sy / 2;
+	if (sx < len * 6 || sy < 5) {
-	xoff = wp->xoff; yoff = wp->yoff;
-
-	if (top)
-		yoff += lines;
-
-	if (wp->sx < len * 6 || wp->sy < 5) {
 		tty_cursor(tty, xoff + px - len / 2, yoff + py);
 		goto draw_text;
 	}
@@ -628,9 +744,9 @@ screen_redraw_draw_number(struct client *c, struct window_pane *wp,
 	}
 
 	len = xsnprintf(buf, sizeof buf, "%ux%u", wp->sx, wp->sy);
-	if (wp->sx < len || wp->sy < 6)
+	if (sx < len || sy < 6)
 		return;
-	tty_cursor(tty, xoff + wp->sx - len, yoff);
+	tty_cursor(tty, xoff + sx - len, yoff);
 
 draw_text:
 	memcpy(&gc, &grid_default_cell, sizeof gc);

screen-write.c

@@ -54,12 +54,53 @@ struct screen_write_collect_line {
 	TAILQ_HEAD(, screen_write_collect_item) items;
 };
 
+static void
+screen_write_offset_timer(__unused int fd, __unused short events, void *data)
+{
+	struct window	*w = data;
+
+	tty_update_window_offset(w);
+}
+
+/* Set cursor position. */
+static void
+screen_write_set_cursor(struct screen_write_ctx *ctx, int cx, int cy)
+{
+	struct window_pane	*wp = ctx->wp;
+	struct window		*w;
+	struct screen		*s = ctx->s;
+	struct timeval		 tv = { .tv_usec = 10000 };
+
+	if (cx != -1 && (u_int)cx == s->cx && cy != -1 && (u_int)cy == s->cy)
+		return;
+
+	if (cx != -1) {
+		if ((u_int)cx > screen_size_x(s)) /* allow last column */
+			cx = screen_size_x(s) - 1;
+		s->cx = cx;
+	}
+	if (cy != -1) {
+		if ((u_int)cy > screen_size_y(s) - 1)
+			cy = screen_size_y(s) - 1;
+		s->cy = cy;
+	}
+
+	if (wp == NULL)
+		return;
+	w = wp->window;
+
+	if (!event_initialized(&w->offset_timer))
+		evtimer_set(&w->offset_timer, screen_write_offset_timer, w);
+	if (!evtimer_pending(&w->offset_timer, NULL))
+		evtimer_add(&w->offset_timer, &tv);
+}
+
 /* Initialize writing with a window. */
 void
 screen_write_start(struct screen_write_ctx *ctx, struct window_pane *wp,
     struct screen *s)
 {
-	char	tmp[16];
+	char	tmp[32];
 	u_int	y;
 
 	memset(ctx, 0, sizeof *ctx);
@@ -78,8 +119,10 @@ screen_write_start(struct screen_write_ctx *ctx, struct window_pane *wp,
 	ctx->scrolled = 0;
 	ctx->bg = 8;
 
-	if (wp != NULL)
+	if (wp != NULL) {
-		snprintf(tmp, sizeof tmp, "pane %%%u", wp->id);
+		snprintf(tmp, sizeof tmp, "pane %%%u (at %u,%u)", wp->id,
+		    wp->xoff, wp->yoff);
+	}
 	log_debug("%s: size %ux%u, %s", __func__, screen_size_x(ctx->s),
 	    screen_size_y(ctx->s), wp == NULL ? "no pane" : tmp);
 }
@@ -107,11 +150,10 @@ screen_write_reset(struct screen_write_ctx *ctx)
 	screen_reset_tabs(s);
 	screen_write_scrollregion(ctx, 0, screen_size_y(s) - 1);
 
-	s->mode &= ~(MODE_INSERT|MODE_KCURSOR|MODE_KKEYPAD|MODE_FOCUSON);
+	s->mode = MODE_CURSOR | MODE_WRAP;
-	s->mode &= ~(ALL_MOUSE_MODES|MODE_MOUSE_UTF8|MODE_MOUSE_SGR);
 
 	screen_write_clearscreen(ctx, 8);
-	screen_write_cursormove(ctx, 0, 0);
+	screen_write_set_cursor(ctx, 0, 0);
 }
 
 /* Write character. */
@@ -127,41 +169,6 @@ screen_write_putc(struct screen_write_ctx *ctx, const struct grid_cell *gcp,
 	screen_write_cell(ctx, &gc);
 }
 
-/* Calculate string length, with embedded formatting. */
-size_t
-screen_write_cstrlen(const char *fmt, ...)
-{
-	va_list	ap;
-	char   *msg, *msg2, *ptr, *ptr2;
-	size_t	size;
-
-	va_start(ap, fmt);
-	xvasprintf(&msg, fmt, ap);
-	va_end(ap);
-	msg2 = xmalloc(strlen(msg) + 1);
-
-	ptr = msg;
-	ptr2 = msg2;
-	while (*ptr != '\0') {
-		if (ptr[0] == '#' && ptr[1] == '[') {
-			while (*ptr != ']' && *ptr != '\0')
-				ptr++;
-			if (*ptr == ']')
-				ptr++;
-			continue;
-		}
-		*ptr2++ = *ptr++;
-	}
-	*ptr2 = '\0';
-
-	size = screen_write_strlen("%s", msg2);
-
-	free(msg);
-	free(msg2);
-
-	return (size);
-}
-
 /* Calculate string length. */
 size_t
 screen_write_strlen(const char *fmt, ...)
@@ -280,77 +287,6 @@ screen_write_vnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
 	free(msg);
 }
 
-/* Write string, similar to nputs, but with embedded formatting (#[]). */
-void
-screen_write_cnputs(struct screen_write_ctx *ctx, ssize_t maxlen,
-    const struct grid_cell *gcp, const char *fmt, ...)
-{
-	struct grid_cell	 gc;
-	struct utf8_data	*ud = &gc.data;
-	va_list			 ap;
-	char			*msg;
-	u_char 			*ptr, *last;
-	size_t			 left, size = 0;
-	enum utf8_state		 more;
-
-	memcpy(&gc, gcp, sizeof gc);
-
-	va_start(ap, fmt);
-	xvasprintf(&msg, fmt, ap);
-	va_end(ap);
-
-	ptr = msg;
-	while (*ptr != '\0') {
-		if (ptr[0] == '#' && ptr[1] == '[') {
-			ptr += 2;
-			last = ptr + strcspn(ptr, "]");
-			if (*last == '\0') {
-				/* No ]. Not much point in doing anything. */
-				break;
-			}
-			*last = '\0';
-
-			style_parse(gcp, &gc, ptr);
-			ptr = last + 1;
-			continue;
-		}
-
-		if (*ptr > 0x7f && utf8_open(ud, *ptr) == UTF8_MORE) {
-			ptr++;
-
-			left = strlen(ptr);
-			if (left < (size_t)ud->size - 1)
-				break;
-			while ((more = utf8_append(ud, *ptr)) == UTF8_MORE)
-				ptr++;
-			ptr++;
-
-			if (more != UTF8_DONE)
-				continue;
-			if (maxlen > 0 && size + ud->width > (size_t)maxlen) {
-				while (size < (size_t)maxlen) {
-					screen_write_putc(ctx, &gc, ' ');
-					size++;
-				}
-				break;
-			}
-			size += ud->width;
-			screen_write_cell(ctx, &gc);
-		} else {
-			if (maxlen > 0 && size + 1 > (size_t)maxlen)
-				break;
-
-			if (*ptr > 0x1f && *ptr < 0x7f) {
-				size++;
-				screen_write_putc(ctx, &gc, *ptr);
-			}
-			ptr++;
-		}
-	}
-
-	free(msg);
-}
-
 /* Copy from another screen. Assumes target region is big enough. */
 void
 screen_write_copy(struct screen_write_ctx *ctx, struct screen *src, u_int px,
@@ -382,13 +318,13 @@ screen_write_copy(struct screen_write_ctx *ctx, struct screen *src, u_int px,
 				screen_write_cell(ctx, &gc);
 		}
 		cy++;
-		screen_write_cursormove(ctx, cx, cy);
+		screen_write_set_cursor(ctx, cx, cy);
 	}
 }
 
 /*
  * Copy from another screen but without the selection stuff. Also assumes the
- * target region is already big enough and already cleared.
+ * target region is already big enough.
  */
 void
 screen_write_fast_copy(struct screen_write_ctx *ctx, struct screen *src,
@@ -408,13 +344,12 @@ screen_write_fast_copy(struct screen_write_ctx *ctx, struct screen *src,
 			break;
 		cx = s->cx;
 		for (xx = px; xx < px + nx; xx++) {
-			if (xx >= gd->linedata[yy].cellsize)
+			if (xx >= grid_get_line(gd, yy)->cellsize)
 				break;
 			grid_get_cell(gd, xx, yy, &gc);
 			if (xx + gc.data.width > px + nx)
 				break;
-			if (!grid_cells_equal(&gc, &grid_default_cell))
+			grid_view_set_cell(ctx->s->grid, cx, cy, &gc);
-				grid_view_set_cell(ctx->s->grid, cx, cy, &gc);
 			cx++;
 		}
 		cy++;
@@ -440,7 +375,7 @@ screen_write_hline(struct screen_write_ctx *ctx, u_int nx, int left, int right)
 		screen_write_putc(ctx, &gc, 'q');
 	screen_write_putc(ctx, &gc, right ? 'u' : 'q');
 
-	screen_write_cursormove(ctx, cx, cy);
+	screen_write_set_cursor(ctx, cx, cy);
 }
 
 /* Draw a horizontal line on screen. */
@@ -459,13 +394,13 @@ screen_write_vline(struct screen_write_ctx *ctx, u_int ny, int top, int bottom)
 
 	screen_write_putc(ctx, &gc, top ? 'w' : 'x');
 	for (i = 1; i < ny - 1; i++) {
-		screen_write_cursormove(ctx, cx, cy + i);
+		screen_write_set_cursor(ctx, cx, cy + i);
 		screen_write_putc(ctx, &gc, 'x');
 	}
-	screen_write_cursormove(ctx, cx, cy + ny - 1);
+	screen_write_set_cursor(ctx, cx, cy + ny - 1);
 	screen_write_putc(ctx, &gc, bottom ? 'v' : 'x');
 
-	screen_write_cursormove(ctx, cx, cy);
+	screen_write_set_cursor(ctx, cx, cy);
 }
 
 /* Draw a box on screen. */
@@ -487,22 +422,22 @@ screen_write_box(struct screen_write_ctx *ctx, u_int nx, u_int ny)
 		screen_write_putc(ctx, &gc, 'q');
 	screen_write_putc(ctx, &gc, 'k');
 
-	screen_write_cursormove(ctx, cx, cy + ny - 1);
+	screen_write_set_cursor(ctx, cx, cy + ny - 1);
 	screen_write_putc(ctx, &gc, 'm');
 	for (i = 1; i < nx - 1; i++)
 		screen_write_putc(ctx, &gc, 'q');
 	screen_write_putc(ctx, &gc, 'j');
 
 	for (i = 1; i < ny - 1; i++) {
-		screen_write_cursormove(ctx, cx, cy + i);
+		screen_write_set_cursor(ctx, cx, cy + i);
 		screen_write_putc(ctx, &gc, 'x');
 	}
 	for (i = 1; i < ny - 1; i++) {
-		screen_write_cursormove(ctx, cx + nx - 1, cy + i);
+		screen_write_set_cursor(ctx, cx + nx - 1, cy + i);
 		screen_write_putc(ctx, &gc, 'x');
 	}
 
-	screen_write_cursormove(ctx, cx, cy);
+	screen_write_set_cursor(ctx, cx, cy);
 }
 
 /*
@@ -557,7 +492,7 @@ screen_write_preview(struct screen_write_ctx *ctx, struct screen *src, u_int nx,
 	if (src->mode & MODE_CURSOR) {
 		grid_view_get_cell(src->grid, src->cx, src->cy, &gc);
 		gc.attr |= GRID_ATTR_REVERSE;
-		screen_write_cursormove(ctx, cx + (src->cx - px),
+		screen_write_set_cursor(ctx, cx + (src->cx - px),
 		    cy + (src->cy - py));
 		screen_write_cell(ctx, &gc);
 	}
@@ -603,25 +538,26 @@ void
 screen_write_cursorup(struct screen_write_ctx *ctx, u_int ny)
 {
 	struct screen	*s = ctx->s;
+	u_int		 cx = s->cx, cy = s->cy;
 
 	if (ny == 0)
 		ny = 1;
 
-	if (s->cy < s->rupper) {
+	if (cy < s->rupper) {
 		/* Above region. */
-		if (ny > s->cy)
+		if (ny > cy)
-			ny = s->cy;
+			ny = cy;
 	} else {
 		/* Below region. */
-		if (ny > s->cy - s->rupper)
+		if (ny > cy - s->rupper)
-			ny = s->cy - s->rupper;
+			ny = cy - s->rupper;
 	}
-	if (s->cx == screen_size_x(s))
+	if (cx == screen_size_x(s))
-	    s->cx--;
+		cx--;
-	if (ny == 0)
-		return;
 
-	s->cy -= ny;
+	cy -= ny;
+
+	screen_write_set_cursor(ctx, cx, cy);
 }
 
 /* Cursor down by ny. */
@@ -629,25 +565,28 @@ void
 screen_write_cursordown(struct screen_write_ctx *ctx, u_int ny)
 {
 	struct screen	*s = ctx->s;
+	u_int		 cx = s->cx, cy = s->cy;
 
 	if (ny == 0)
 		ny = 1;
 
-	if (s->cy > s->rlower) {
+	if (cy > s->rlower) {
 		/* Below region. */
-		if (ny > screen_size_y(s) - 1 - s->cy)
+		if (ny > screen_size_y(s) - 1 - cy)
-			ny = screen_size_y(s) - 1 - s->cy;
+			ny = screen_size_y(s) - 1 - cy;
 	} else {
 		/* Above region. */
-		if (ny > s->rlower - s->cy)
+		if (ny > s->rlower - cy)
-			ny = s->rlower - s->cy;
+			ny = s->rlower - cy;
 	}
-	if (s->cx == screen_size_x(s))
+	if (cx == screen_size_x(s))
-	    s->cx--;
+	    cx--;
-	if (ny == 0)
+	else if (ny == 0)
 		return;
 
-	s->cy += ny;
+	cy += ny;
+
+	screen_write_set_cursor(ctx, cx, cy);
 }
 
 /* Cursor right by nx. */
@@ -655,16 +594,19 @@ void
 screen_write_cursorright(struct screen_write_ctx *ctx, u_int nx)
 {
 	struct screen	*s = ctx->s;
+	u_int		 cx = s->cx, cy = s->cy;
 
 	if (nx == 0)
 		nx = 1;
 
-	if (nx > screen_size_x(s) - 1 - s->cx)
+	if (nx > screen_size_x(s) - 1 - cx)
-		nx = screen_size_x(s) - 1 - s->cx;
+		nx = screen_size_x(s) - 1 - cx;
 	if (nx == 0)
 		return;
 
-	s->cx += nx;
+	cx += nx;
+
+	screen_write_set_cursor(ctx, cx, cy);
 }
 
 /* Cursor left by nx. */
@@ -672,16 +614,19 @@ void
 screen_write_cursorleft(struct screen_write_ctx *ctx, u_int nx)
 {
 	struct screen	*s = ctx->s;
+	u_int		 cx = s->cx, cy = s->cy;
 
 	if (nx == 0)
 		nx = 1;
 
-	if (nx > s->cx)
+	if (nx > cx)
-		nx = s->cx;
+		nx = cx;
 	if (nx == 0)
 		return;
 
-	s->cx -= nx;
+	cx -= nx;
+
+	screen_write_set_cursor(ctx, cx, cy);
 }
 
 /* Backspace; cursor left unless at start of wrapped line when can move up. */
@@ -690,17 +635,20 @@ screen_write_backspace(struct screen_write_ctx *ctx)
 {
 	struct screen		*s = ctx->s;
 	struct grid_line	*gl;
+	u_int			 cx = s->cx, cy = s->cy;
 
-	if (s->cx == 0) {
+	if (cx == 0) {
-		if (s->cy == 0)
+		if (cy == 0)
 			return;
-		gl = &s->grid->linedata[s->grid->hsize + s->cy - 1];
+		gl = grid_get_line(s->grid, s->grid->hsize + cy - 1);
 		if (gl->flags & GRID_LINE_WRAPPED) {
-			s->cy--;
+			cy--;
-			s->cx = screen_size_x(s) - 1;
+			cx = screen_size_x(s) - 1;
 		}
 	} else
-		s->cx--;
+		cx--;
+
+	screen_write_set_cursor(ctx, cx, cy);
 }
 
 /* VT100 alignment test. */
@@ -712,8 +660,6 @@ screen_write_alignmenttest(struct screen_write_ctx *ctx)
 	struct grid_cell       	 gc;
 	u_int			 xx, yy;
 
-	screen_write_initctx(ctx, &ttyctx);
-
 	memcpy(&gc, &grid_default_cell, sizeof gc);
 	utf8_set(&gc.data, 'E');
 
@@ -722,12 +668,13 @@ screen_write_alignmenttest(struct screen_write_ctx *ctx)
 			grid_view_set_cell(s->grid, xx, yy, &gc);
 	}
 
-	s->cx = 0;
+	screen_write_set_cursor(ctx, 0, 0);
-	s->cy = 0;
 
 	s->rupper = 0;
 	s->rlower = screen_size_y(s) - 1;
 
+	screen_write_initctx(ctx, &ttyctx);
+
 	screen_write_collect_clear(ctx, 0, screen_size_y(s) - 1);
 	tty_write(tty_cmd_alignmenttest, &ttyctx);
 }
@@ -917,8 +864,8 @@ screen_write_clearline(struct screen_write_ctx *ctx, u_int bg)
 	struct tty_ctx		 ttyctx;
 	u_int			 sx = screen_size_x(s);
 
-	gl = &s->grid->linedata[s->grid->hsize + s->cy];
+	gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
-	if (gl->cellsize == 0 && bg == 8)
+	if (gl->cellsize == 0 && COLOUR_DEFAULT(bg))
 		return;
 
 	screen_write_initctx(ctx, &ttyctx);
@@ -940,8 +887,8 @@ screen_write_clearendofline(struct screen_write_ctx *ctx, u_int bg)
 	struct tty_ctx		 ttyctx;
 	u_int			 sx = screen_size_x(s);
 
-	gl = &s->grid->linedata[s->grid->hsize + s->cy];
+	gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
-	if (s->cx > sx - 1 || (s->cx >= gl->cellsize && bg == 8))
+	if (s->cx > sx - 1 || (s->cx >= gl->cellsize && COLOUR_DEFAULT(bg)))
 		return;
 
 	screen_write_initctx(ctx, &ttyctx);
@@ -979,17 +926,24 @@ screen_write_clearstartofline(struct screen_write_ctx *ctx, u_int bg)
 
 /* Move cursor to px,py. */
 void
-screen_write_cursormove(struct screen_write_ctx *ctx, u_int px, u_int py)
+screen_write_cursormove(struct screen_write_ctx *ctx, int px, int py,
+    int origin)
 {
 	struct screen	*s = ctx->s;
 
-	if (px > screen_size_x(s) - 1)
+	if (origin && py != -1 && (s->mode & MODE_ORIGIN)) {
+		if ((u_int)py > s->rlower - s->rupper)
+			py = s->rlower;
+		else
+			py += s->rupper;
+	}
+
+	if (px != -1 && (u_int)px > screen_size_x(s) - 1)
 		px = screen_size_x(s) - 1;
-	if (py > screen_size_y(s) - 1)
+	if (py != -1 && (u_int)py > screen_size_y(s) - 1)
 		py = screen_size_y(s) - 1;
 
-	s->cx = px;
+	screen_write_set_cursor(ctx, px, py);
-	s->cy = py;
 }
 
 /* Reverse index (up with scroll). */
@@ -1005,7 +959,7 @@ screen_write_reverseindex(struct screen_write_ctx *ctx, u_int bg)
 	if (s->cy == s->rupper)
 		grid_view_scroll_region_down(s->grid, s->rupper, s->rlower, bg);
 	else if (s->cy > 0)
-		s->cy--;
+		screen_write_set_cursor(ctx, -1, s->cy - 1);
 
 	screen_write_collect_flush(ctx, 0);
 	tty_write(tty_cmd_reverseindex, &ttyctx);
@@ -1028,8 +982,7 @@ screen_write_scrollregion(struct screen_write_ctx *ctx, u_int rupper,
 	screen_write_collect_flush(ctx, 0);
 
 	/* Cursor moves to top-left. */
-	s->cx = 0;
+	screen_write_set_cursor(ctx, 0, 0);
-	s->cy = 0;
 
 	s->rupper = rupper;
 	s->rlower = rlower;
@@ -1043,7 +996,7 @@ screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped, u_int bg)
 	struct grid		*gd = s->grid;
 	struct grid_line	*gl;
 
-	gl = &gd->linedata[gd->hsize + s->cy];
+	gl = grid_get_line(gd, gd->hsize + s->cy);
 	if (wrapped)
 		gl->flags |= GRID_LINE_WRAPPED;
 	else
@@ -1062,7 +1015,7 @@ screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped, u_int bg)
 		screen_write_collect_scroll(ctx);
 		ctx->scrolled++;
 	} else if (s->cy < screen_size_y(s) - 1)
-		s->cy++;
+		screen_write_set_cursor(ctx, -1, s->cy + 1);
 }
 
 /* Scroll up. */
@@ -1094,9 +1047,7 @@ screen_write_scrollup(struct screen_write_ctx *ctx, u_int lines, u_int bg)
 void
 screen_write_carriagereturn(struct screen_write_ctx *ctx)
 {
-	struct screen	*s = ctx->s;
+	screen_write_set_cursor(ctx, 0, -1);
-
-	s->cx = 0;
 }
 
 /* Clear to end of screen from cursor. */
@@ -1251,7 +1202,7 @@ screen_write_collect_flush(struct screen_write_ctx *ctx, int scroll_only)
 	cx = s->cx; cy = s->cy;
 	for (y = 0; y < screen_size_y(s); y++) {
 		TAILQ_FOREACH_SAFE(ci, &ctx->list[y].items, entry, tmp) {
-			screen_write_cursormove(ctx, ci->x, y);
+			screen_write_set_cursor(ctx, ci->x, y);
 			screen_write_initctx(ctx, &ttyctx);
 			ttyctx.cell = &ci->gc;
 			ttyctx.wrapped = ci->wrapped;
@@ -1300,14 +1251,15 @@ screen_write_collect_end(struct screen_write_ctx *ctx)
 			grid_view_set_cell(s->grid, xx, s->cy,
 			    &grid_default_cell);
 		}
-		if (gc.data.width > 1)
+		if (gc.data.width > 1) {
 			grid_view_set_cell(s->grid, xx, s->cy,
 			    &grid_default_cell);
+		}
 	}
 
 	memcpy(&gc, &ci->gc, sizeof gc);
 	grid_view_set_cells(s->grid, s->cx, s->cy, &gc, ci->data, ci->used);
-	s->cx += ci->used;
+	screen_write_set_cursor(ctx, s->cx + ci->used, -1);
 
 	for (xx = s->cx; xx < screen_size_x(s); xx++) {
 		grid_view_get_cell(s->grid, xx, s->cy, &gc);
@@ -1343,7 +1295,7 @@ screen_write_collect_add(struct screen_write_ctx *ctx,
 		collect = 0;
 	else if (s->mode & MODE_INSERT)
 		collect = 0;
-	else if (s->sel.flag)
+	else if (s->sel != NULL)
 		collect = 0;
 	if (!collect) {
 		screen_write_collect_end(ctx);
@@ -1361,7 +1313,7 @@ screen_write_collect_add(struct screen_write_ctx *ctx,
 		log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
 		ci->wrapped = 1;
 		screen_write_linefeed(ctx, 1, 8);
-		s->cx = 0;
+		screen_write_set_cursor(ctx, 0, -1);
 	}
 
 	if (ci->used == 0)
@@ -1395,7 +1347,7 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
 		screen_write_collect_flush(ctx, 0);
 		if ((gc = screen_write_combine(ctx, &gc->data, &xx)) != 0) {
 			cx = s->cx; cy = s->cy;
-			screen_write_cursormove(ctx, xx, s->cy);
+			screen_write_set_cursor(ctx, xx, s->cy);
 			screen_write_initctx(ctx, &ttyctx);
 			ttyctx.cell = gc;
 			tty_write(tty_cmd_cell, &ttyctx);
@@ -1423,7 +1375,7 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
 	if ((s->mode & MODE_WRAP) && s->cx > sx - width) {
 		log_debug("%s: wrapped at %u,%u", __func__, s->cx, s->cy);
 		screen_write_linefeed(ctx, 1, 8);
-		s->cx = 0;
+		screen_write_set_cursor(ctx, 0, -1);
 		screen_write_collect_flush(ctx, 1);
 	}
 
@@ -1433,7 +1385,7 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
 	screen_write_initctx(ctx, &ttyctx);
 
 	/* Handle overwriting of UTF-8 characters. */
-	gl = &s->grid->linedata[s->grid->hsize + s->cy];
+	gl = grid_get_line(s->grid, s->grid->hsize + s->cy);
 	if (gl->flags & GRID_LINE_EXTENDED) {
 		grid_view_get_cell(gd, s->cx, s->cy, &now_gc);
 		if (screen_write_overwrite(ctx, &now_gc, width))
@@ -1496,9 +1448,9 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
 	 */
 	last = !(s->mode & MODE_WRAP);
 	if (s->cx <= sx - last - width)
-		s->cx += width;
+		screen_write_set_cursor(ctx, s->cx + width, -1);
 	else
-		s->cx = sx - last;
+		screen_write_set_cursor(ctx,  sx - last, -1);
 
 	/* Create space for character in insert mode. */
 	if (s->mode & MODE_INSERT) {

screen.c

@@ -24,6 +24,22 @@
 
 #include "tmux.h"
 
+/* Selected area in screen. */
+struct screen_sel {
+	int		 hidden;
+	int		 rectangle;
+	int		 modekeys;
+
+	u_int		 sx;
+	u_int		 sy;
+
+	u_int		 ex;
+	u_int		 ey;
+
+	struct grid_cell cell;
+};
+
+/* Entry on title stack. */
 struct screen_title_entry {
 	char				*text;
 
@@ -31,7 +47,6 @@ struct screen_title_entry {
 };
 TAILQ_HEAD(screen_titles, screen_title_entry);
 
-static void	screen_resize_x(struct screen *, u_int);
 static void	screen_resize_y(struct screen *, u_int);
 
 static void	screen_reflow(struct screen *, u_int);
@@ -66,6 +81,7 @@ screen_init(struct screen *s, u_int sx, u_int sy, u_int hlimit)
 	s->cstyle = 0;
 	s->ccolour = xstrdup("");
 	s->tabs = NULL;
+	s->sel = NULL;
 
 	screen_reinit(s);
 }
@@ -94,6 +110,7 @@ screen_reinit(struct screen *s)
 void
 screen_free(struct screen *s)
 {
+	free(s->sel);
 	free(s->tabs);
 	free(s->title);
 	free(s->ccolour);
@@ -188,13 +205,7 @@ screen_resize(struct screen *s, u_int sx, u_int sy, int reflow)
 		sy = 1;
 
 	if (sx != screen_size_x(s)) {
-		screen_resize_x(s, sx);
+		s->grid->sx = sx;
-
-		/*
-		 * It is unclear what should happen to tabs on resize. xterm
-		 * seems to try and maintain them, rxvt resets them. Resetting
-		 * is simpler and more reliable so let's do that.
-		 */
 		screen_reset_tabs(s);
 	} else
 		reflow = 0;
@@ -206,28 +217,6 @@ screen_resize(struct screen *s, u_int sx, u_int sy, int reflow)
 		screen_reflow(s, sx);
 }
 
-static void
-screen_resize_x(struct screen *s, u_int sx)
-{
-	struct grid		*gd = s->grid;
-
-	if (sx == 0)
-		fatalx("zero size");
-
-	/*
-	 * Treat resizing horizontally simply: just ensure the cursor is
-	 * on-screen and change the size. Don't bother to truncate any lines -
-	 * then the data should be accessible if the size is then increased.
-	 *
-	 * The only potential wrinkle is if UTF-8 double-width characters are
-	 * left in the last column, but UTF-8 terminals should deal with this
-	 * sanely.
-	 */
-	if (s->cx >= sx)
-		s->cx = sx - 1;
-	gd->sx = sx;
-}
-
 static void
 screen_resize_y(struct screen *s, u_int sy)
 {
@@ -280,9 +269,8 @@ screen_resize_y(struct screen *s, u_int sy)
 		s->cy -= needed;
 	}
 
-	/* Resize line arrays. */
+	/* Resize line array. */
-	gd->linedata = xreallocarray(gd->linedata, gd->hsize + sy,
+	grid_adjust_lines(gd, gd->hsize + sy);
-	    sizeof *gd->linedata);
 
 	/* Size increasing. */
 	if (sy > oldy) {
@@ -305,7 +293,7 @@ screen_resize_y(struct screen *s, u_int sy)
 
 		/* Then fill the rest in with blanks. */
 		for (i = gd->hsize + sy - needed; i < gd->hsize + sy; i++)
-			memset(&gd->linedata[i], 0, sizeof gd->linedata[i]);
+			memset(grid_get_line(gd, i), 0, sizeof(struct grid_line));
 	}
 
 	/* Set the new size, and reset the scroll region. */
@@ -317,51 +305,49 @@ screen_resize_y(struct screen *s, u_int sy)
 /* Set selection. */
 void
 screen_set_selection(struct screen *s, u_int sx, u_int sy,
-    u_int ex, u_int ey, u_int rectflag, struct grid_cell *gc)
+    u_int ex, u_int ey, u_int rectangle, int modekeys, struct grid_cell *gc)
 {
-	struct screen_sel	*sel = &s->sel;
+	if (s->sel == NULL)
+		s->sel = xcalloc(1, sizeof *s->sel);
 
-	memcpy(&sel->cell, gc, sizeof sel->cell);
+	memcpy(&s->sel->cell, gc, sizeof s->sel->cell);
-	sel->flag = 1;
+	s->sel->hidden = 0;
-	sel->hidden = 0;
+	s->sel->rectangle = rectangle;
+	s->sel->modekeys = modekeys;
 
-	sel->rectflag = rectflag;
+	s->sel->sx = sx;
-
+	s->sel->sy = sy;
-	sel->sx = sx; sel->sy = sy;
+	s->sel->ex = ex;
-	sel->ex = ex; sel->ey = ey;
+	s->sel->ey = ey;
 }
 
 /* Clear selection. */
 void
 screen_clear_selection(struct screen *s)
 {
-	struct screen_sel	*sel = &s->sel;
+	free(s->sel);
-
+	s->sel = NULL;
-	sel->flag = 0;
-	sel->hidden = 0;
-	sel->lineflag = LINE_SEL_NONE;
 }
 
 /* Hide selection. */
 void
 screen_hide_selection(struct screen *s)
 {
-	struct screen_sel	*sel = &s->sel;
+	if (s->sel != NULL)
-
+		s->sel->hidden = 1;
-	sel->hidden = 1;
 }
 
 /* Check if cell in selection. */
 int
 screen_check_selection(struct screen *s, u_int px, u_int py)
 {
-	struct screen_sel	*sel = &s->sel;
+	struct screen_sel	*sel = s->sel;
 	u_int			 xx;
 
-	if (!sel->flag || sel->hidden)
+	if (sel == NULL || sel->hidden)
 		return (0);
 
-	if (sel->rectflag) {
+	if (sel->rectangle) {
 		if (sel->sy < sel->ey) {
 			/* start line < end line -- downward selection. */
 			if (py < sel->sy || py > sel->ey)
@@ -409,7 +395,11 @@ screen_check_selection(struct screen *s, u_int px, u_int py)
 			if (py == sel->sy && px < sel->sx)
 				return (0);
 
-			if (py == sel->ey && px > sel->ex)
+			if (sel->modekeys == MODEKEY_EMACS)
+				xx = (sel->ex == 0 ? 0 : sel->ex - 1);
+			else
+				xx = sel->ex;
+			if (py == sel->ey && px > xx)
 				return (0);
 		} else if (sel->sy > sel->ey) {
 			/* starting line > ending line -- upward selection. */
@@ -440,7 +430,11 @@ screen_check_selection(struct screen *s, u_int px, u_int py)
 					return (0);
 			} else {
 				/* selection start (sx) is on the left */
-				if (px < sel->sx || px > sel->ex)
+				if (sel->modekeys == MODEKEY_EMACS)
+					xx = (sel->ex == 0 ? 0 : sel->ex - 1);
+				else
+					xx = sel->ex;
+				if (px < sel->sx || px > xx)
 					return (0);
 			}
 		}
@@ -454,10 +448,10 @@ void
 screen_select_cell(struct screen *s, struct grid_cell *dst,
     const struct grid_cell *src)
 {
-	if (!s->sel.flag || s->sel.hidden)
+	if (s->sel == NULL || s->sel->hidden)
 		return;
 
-	memcpy(dst, &s->sel.cell, sizeof *dst);
+	memcpy(dst, &s->sel->cell, sizeof *dst);
 
 	utf8_copy(&dst->data, &src->data);
 	dst->attr = dst->attr & ~GRID_ATTR_CHARSET;
@@ -469,5 +463,30 @@ screen_select_cell(struct screen *s, struct grid_cell *dst,
 static void
 screen_reflow(struct screen *s, u_int new_x)
 {
-	grid_reflow(s->grid, new_x, &s->cy);
+	u_int		cx = s->cx, cy = s->grid->hsize + s->cy, wx, wy;
+	struct timeval	start, tv;
+
+	gettimeofday(&start, NULL);
+
+	grid_wrap_position(s->grid, cx, cy, &wx, &wy);
+	log_debug("%s: cursor %u,%u is %u,%u", __func__, cx, cy, wx, wy);
+
+	grid_reflow(s->grid, new_x);
+
+	grid_unwrap_position(s->grid, &cx, &cy, wx, wy);
+	log_debug("%s: new cursor is %u,%u", __func__, cx, cy);
+
+	if (cy >= s->grid->hsize) {
+		s->cx = cx;
+		s->cy = cy - s->grid->hsize;
+	} else {
+		s->cx = 0;
+		s->cy = 0;
+	}
+
+	gettimeofday(&tv, NULL);
+	timersub(&tv, &start, &tv);
+
+	log_debug("%s: reflow took %llu.%06u seconds", __func__,
+	    (unsigned long long)tv.tv_sec, (u_int)tv.tv_usec);
 }

server-client.c

@@ -41,6 +41,8 @@ static void	server_client_check_redraw(struct client *);
 static void	server_client_set_title(struct client *);
 static void	server_client_reset_state(struct client *);
 static int	server_client_assume_paste(struct session *);
+static void	server_client_clear_identify(struct client *,
+		    struct window_pane *);
 
 static void	server_client_dispatch(struct imsg *, void *);
 static void	server_client_dispatch_command(struct client *, struct imsg *);
@@ -91,7 +93,7 @@ server_client_set_identify(struct client *c, u_int delay)
 }
 
 /* Clear identify mode on client. */
-void
+static void
 server_client_clear_identify(struct client *c, struct window_pane *wp)
 {
 	if (~c->flags & CLIENT_IDENTIFY)
@@ -182,18 +184,25 @@ server_client_create(int fd)
 	TAILQ_INIT(&c->queue);
 
 	c->stdin_data = evbuffer_new();
+	if (c->stdin_data == NULL)
+		fatalx("out of memory");
 	c->stdout_data = evbuffer_new();
+	if (c->stdout_data == NULL)
+		fatalx("out of memory");
 	c->stderr_data = evbuffer_new();
+	if (c->stderr_data == NULL)
+		fatalx("out of memory");
 
 	c->tty.fd = -1;
 	c->title = NULL;
 
 	c->session = NULL;
 	c->last_session = NULL;
+
 	c->tty.sx = 80;
 	c->tty.sy = 24;
 
-	screen_init(&c->status.status, c->tty.sx, 1, 0);
+	status_init(c);
 
 	c->message_string = NULL;
 	TAILQ_INIT(&c->message_log);
@@ -270,13 +279,7 @@ server_client_lost(struct client *c)
 	if (c->stderr_data != c->stdout_data)
 		evbuffer_free(c->stderr_data);
 
-	if (event_initialized(&c->status.timer))
+	status_free(c);
-		evtimer_del(&c->status.timer);
-	screen_free(&c->status.status);
-	if (c->status.old_status != NULL) {
-		screen_free(c->status.old_status);
-		free(c->status.old_status);
-	}
 
 	free(c->title);
 	free((void *)c->cwd);
@@ -298,6 +301,7 @@ server_client_lost(struct client *c)
 		free(msg);
 	}
 
+	free(c->prompt_saved);
 	free(c->prompt_string);
 	free(c->prompt_buffer);
 
@@ -405,20 +409,21 @@ server_client_check_mouse(struct client *c)
 {
 	struct session		*s = c->session;
 	struct mouse_event	*m = &c->tty.mouse;
-	struct window		*w;
+	struct winlink		*wl;
 	struct window_pane	*wp;
-	u_int			 x, y, b;
+	u_int			 x, y, b, sx, sy, px, py;
 	int			 flag;
 	key_code		 key;
 	struct timeval		 tv;
+	struct style_range	*sr;
 	enum { NOTYPE, MOVE, DOWN, UP, DRAG, WHEEL, DOUBLE, TRIPLE } type;
-	enum { NOWHERE, PANE, STATUS, BORDER } where;
+	enum { NOWHERE, PANE, STATUS, STATUS_LEFT, STATUS_RIGHT, STATUS_DEFAULT, BORDER } where;
 
 	type = NOTYPE;
 	where = NOWHERE;
 
-	log_debug("mouse %02x at %u,%u (last %u,%u) (%d)", m->b, m->x, m->y,
+	log_debug("%s mouse %02x at %u,%u (last %u,%u) (%d)", c->name, m->b,
-	    m->lx, m->ly, c->tty.mouse_drag_flag);
+	    m->x, m->y, m->lx, m->ly, c->tty.mouse_drag_flag);
 
 	/* What type of event is this? */
 	if ((m->sgr_type != ' ' &&
@@ -437,7 +442,7 @@ server_client_check_mouse(struct client *c)
 			x = m->x, y = m->y, b = m->b;
 			log_debug("drag update at %u,%u", x, y);
 		} else {
-			x = m->lx, y = m->ly, b = m->lb;
+			x = m->lx - m->ox, y = m->ly - m->oy, b = m->lb;
 			log_debug("drag start at %u,%u", x, y);
 		}
 	} else if (MOUSE_WHEEL(m->b)) {
@@ -491,48 +496,88 @@ have_event:
 	if (type == NOTYPE)
 		return (KEYC_UNKNOWN);
 
-	/* Always save the session. */
+	/* Save the session. */
 	m->s = s->id;
+	m->w = -1;
 
 	/* Is this on the status line? */
 	m->statusat = status_at_line(c);
-	if (m->statusat != -1 && y == (u_int)m->statusat) {
+	if (m->statusat != -1 &&
-		w = status_get_window_at(c, x);
+	    y >= (u_int)m->statusat &&
-		if (w == NULL)
+	    y < m->statusat + status_line_size(c)) {
-			return (KEYC_UNKNOWN);
+		sr = status_get_range(c, x, y - m->statusat);
-		m->w = w->id;
+		if (sr == NULL) {
-		where = STATUS;
+			where = STATUS_DEFAULT;
-	} else
+		} else {
-		m->w = -1;
+			switch (sr->type) {
+			case STYLE_RANGE_NONE:
+				return (KEYC_UNKNOWN);
+			case STYLE_RANGE_LEFT:
+				where = STATUS_LEFT;
+				break;
+			case STYLE_RANGE_RIGHT:
+				where = STATUS_RIGHT;
+				break;
+			case STYLE_RANGE_WINDOW:
+				wl = winlink_find_by_index(&s->windows, sr->argument);
+				if (wl == NULL)
+					return (KEYC_UNKNOWN);
+				m->w = wl->window->id;
+
+				where = STATUS;
+				break;
+			}
+		}
+	}
 
 	/* Not on status line. Adjust position and check for border or pane. */
 	if (where == NOWHERE) {
+		px = x;
 		if (m->statusat == 0 && y > 0)
-			y--;
+			py = y - 1;
 		else if (m->statusat > 0 && y >= (u_int)m->statusat)
-			y = m->statusat - 1;
+			py = m->statusat - 1;
+		else
+			py = y;
 
-		TAILQ_FOREACH(wp, &s->curw->window->panes, entry) {
+		tty_window_offset(&c->tty, &m->ox, &m->oy, &sx, &sy);
-			if ((wp->xoff + wp->sx == x &&
+		log_debug("mouse window @%u at %u,%u (%ux%u)",
-			    wp->yoff <= 1 + y &&
+		    s->curw->window->id, m->ox, m->oy, sx, sy);
-			    wp->yoff + wp->sy >= y) ||
+		if (px > sx || py > sy)
-			    (wp->yoff + wp->sy == y &&
+			return (KEYC_UNKNOWN);
-			    wp->xoff <= 1 + x &&
+		px = px + m->ox;
-			    wp->xoff + wp->sx >= x))
+		py = py + m->oy;
-				break;
+		m->x = x + m->ox;
-		}
+		m->y = y + m->oy;
-		if (wp != NULL)
+
-			where = BORDER;
+		/* Try the pane borders if not zoomed. */
-		else {
+		if (~s->curw->window->flags & WINDOW_ZOOMED) {
-			wp = window_get_active_at(s->curw->window, x, y);
+			TAILQ_FOREACH(wp, &s->curw->window->panes, entry) {
-			if (wp != NULL) {
+				if ((wp->xoff + wp->sx == px &&
-				where = PANE;
+				    wp->yoff <= 1 + py &&
-				log_debug("mouse at %u,%u is on pane %%%u",
+				    wp->yoff + wp->sy >= py) ||
-				    x, y, wp->id);
+				    (wp->yoff + wp->sy == py &&
+				    wp->xoff <= 1 + px &&
+				    wp->xoff + wp->sx >= px))
+					break;
 			}
+			if (wp != NULL)
+				where = BORDER;
 		}
+
+		/* Otherwise try inside the pane. */
+		if (where == NOWHERE) {
+			wp = window_get_active_at(s->curw->window, px, py);
+			if (wp != NULL)
+				where = PANE;
+		}
+
 		if (where == NOWHERE)
 			return (KEYC_UNKNOWN);
+		if (where == PANE)
+			log_debug("mouse %u,%u on pane %%%u", x, y, wp->id);
+		else if (where == BORDER)
+			log_debug("mouse on pane %%%u border", wp->id);
 		m->wp = wp->id;
 		m->w = wp->window->id;
 	} else
@@ -556,6 +601,12 @@ have_event:
 				key = KEYC_MOUSEDRAGEND1_PANE;
 			if (where == STATUS)
 				key = KEYC_MOUSEDRAGEND1_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_MOUSEDRAGEND1_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_MOUSEDRAGEND1_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_MOUSEDRAGEND1_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_MOUSEDRAGEND1_BORDER;
 			break;
@@ -564,6 +615,12 @@ have_event:
 				key = KEYC_MOUSEDRAGEND2_PANE;
 			if (where == STATUS)
 				key = KEYC_MOUSEDRAGEND2_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_MOUSEDRAGEND2_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_MOUSEDRAGEND2_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_MOUSEDRAGEND2_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_MOUSEDRAGEND2_BORDER;
 			break;
@@ -572,6 +629,12 @@ have_event:
 				key = KEYC_MOUSEDRAGEND3_PANE;
 			if (where == STATUS)
 				key = KEYC_MOUSEDRAGEND3_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_MOUSEDRAGEND3_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_MOUSEDRAGEND3_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_MOUSEDRAGEND3_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_MOUSEDRAGEND3_BORDER;
 			break;
@@ -594,6 +657,12 @@ have_event:
 			key = KEYC_MOUSEMOVE_PANE;
 		if (where == STATUS)
 			key = KEYC_MOUSEMOVE_STATUS;
+		if (where == STATUS_LEFT)
+			key = KEYC_MOUSEMOVE_STATUS_LEFT;
+		if (where == STATUS_RIGHT)
+			key = KEYC_MOUSEMOVE_STATUS_RIGHT;
+		if (where == STATUS_DEFAULT)
+			key = KEYC_MOUSEMOVE_STATUS_DEFAULT;
 		if (where == BORDER)
 			key = KEYC_MOUSEMOVE_BORDER;
 		break;
@@ -607,6 +676,12 @@ have_event:
 					key = KEYC_MOUSEDRAG1_PANE;
 				if (where == STATUS)
 					key = KEYC_MOUSEDRAG1_STATUS;
+				if (where == STATUS_LEFT)
+					key = KEYC_MOUSEDRAG1_STATUS_LEFT;
+				if (where == STATUS_RIGHT)
+					key = KEYC_MOUSEDRAG1_STATUS_RIGHT;
+				if (where == STATUS_DEFAULT)
+					key = KEYC_MOUSEDRAG1_STATUS_DEFAULT;
 				if (where == BORDER)
 					key = KEYC_MOUSEDRAG1_BORDER;
 				break;
@@ -615,6 +690,12 @@ have_event:
 					key = KEYC_MOUSEDRAG2_PANE;
 				if (where == STATUS)
 					key = KEYC_MOUSEDRAG2_STATUS;
+				if (where == STATUS_LEFT)
+					key = KEYC_MOUSEDRAG2_STATUS_LEFT;
+				if (where == STATUS_RIGHT)
+					key = KEYC_MOUSEDRAG2_STATUS_RIGHT;
+				if (where == STATUS_DEFAULT)
+					key = KEYC_MOUSEDRAG2_STATUS_DEFAULT;
 				if (where == BORDER)
 					key = KEYC_MOUSEDRAG2_BORDER;
 				break;
@@ -623,6 +704,12 @@ have_event:
 					key = KEYC_MOUSEDRAG3_PANE;
 				if (where == STATUS)
 					key = KEYC_MOUSEDRAG3_STATUS;
+				if (where == STATUS_LEFT)
+					key = KEYC_MOUSEDRAG3_STATUS_LEFT;
+				if (where == STATUS_RIGHT)
+					key = KEYC_MOUSEDRAG3_STATUS_RIGHT;
+				if (where == STATUS_DEFAULT)
+					key = KEYC_MOUSEDRAG3_STATUS_DEFAULT;
 				if (where == BORDER)
 					key = KEYC_MOUSEDRAG3_BORDER;
 				break;
@@ -641,6 +728,12 @@ have_event:
 				key = KEYC_WHEELUP_PANE;
 			if (where == STATUS)
 				key = KEYC_WHEELUP_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_WHEELUP_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_WHEELUP_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_WHEELUP_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_WHEELUP_BORDER;
 		} else {
@@ -648,6 +741,12 @@ have_event:
 				key = KEYC_WHEELDOWN_PANE;
 			if (where == STATUS)
 				key = KEYC_WHEELDOWN_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_WHEELDOWN_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_WHEELDOWN_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_WHEELDOWN_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_WHEELDOWN_BORDER;
 		}
@@ -659,6 +758,12 @@ have_event:
 				key = KEYC_MOUSEUP1_PANE;
 			if (where == STATUS)
 				key = KEYC_MOUSEUP1_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_MOUSEUP1_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_MOUSEUP1_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_MOUSEUP1_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_MOUSEUP1_BORDER;
 			break;
@@ -667,6 +772,12 @@ have_event:
 				key = KEYC_MOUSEUP2_PANE;
 			if (where == STATUS)
 				key = KEYC_MOUSEUP2_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_MOUSEUP2_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_MOUSEUP2_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_MOUSEUP2_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_MOUSEUP2_BORDER;
 			break;
@@ -675,6 +786,12 @@ have_event:
 				key = KEYC_MOUSEUP3_PANE;
 			if (where == STATUS)
 				key = KEYC_MOUSEUP3_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_MOUSEUP3_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_MOUSEUP3_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_MOUSEUP3_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_MOUSEUP3_BORDER;
 			break;
@@ -687,6 +804,12 @@ have_event:
 				key = KEYC_MOUSEDOWN1_PANE;
 			if (where == STATUS)
 				key = KEYC_MOUSEDOWN1_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_MOUSEDOWN1_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_MOUSEDOWN1_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_MOUSEDOWN1_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_MOUSEDOWN1_BORDER;
 			break;
@@ -695,6 +818,12 @@ have_event:
 				key = KEYC_MOUSEDOWN2_PANE;
 			if (where == STATUS)
 				key = KEYC_MOUSEDOWN2_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_MOUSEDOWN2_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_MOUSEDOWN2_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_MOUSEDOWN2_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_MOUSEDOWN2_BORDER;
 			break;
@@ -703,6 +832,12 @@ have_event:
 				key = KEYC_MOUSEDOWN3_PANE;
 			if (where == STATUS)
 				key = KEYC_MOUSEDOWN3_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_MOUSEDOWN3_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_MOUSEDOWN3_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_MOUSEDOWN3_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_MOUSEDOWN3_BORDER;
 			break;
@@ -715,6 +850,12 @@ have_event:
 				key = KEYC_DOUBLECLICK1_PANE;
 			if (where == STATUS)
 				key = KEYC_DOUBLECLICK1_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_DOUBLECLICK1_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_DOUBLECLICK1_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_DOUBLECLICK1_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_DOUBLECLICK1_BORDER;
 			break;
@@ -723,6 +864,12 @@ have_event:
 				key = KEYC_DOUBLECLICK2_PANE;
 			if (where == STATUS)
 				key = KEYC_DOUBLECLICK2_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_DOUBLECLICK2_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_DOUBLECLICK2_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_DOUBLECLICK2_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_DOUBLECLICK2_BORDER;
 			break;
@@ -731,6 +878,12 @@ have_event:
 				key = KEYC_DOUBLECLICK3_PANE;
 			if (where == STATUS)
 				key = KEYC_DOUBLECLICK3_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_DOUBLECLICK3_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_DOUBLECLICK3_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_DOUBLECLICK3_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_DOUBLECLICK3_BORDER;
 			break;
@@ -743,6 +896,12 @@ have_event:
 				key = KEYC_TRIPLECLICK1_PANE;
 			if (where == STATUS)
 				key = KEYC_TRIPLECLICK1_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_TRIPLECLICK1_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_TRIPLECLICK1_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_TRIPLECLICK1_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_TRIPLECLICK1_BORDER;
 			break;
@@ -751,6 +910,12 @@ have_event:
 				key = KEYC_TRIPLECLICK2_PANE;
 			if (where == STATUS)
 				key = KEYC_TRIPLECLICK2_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_TRIPLECLICK2_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_TRIPLECLICK2_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_TRIPLECLICK2_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_TRIPLECLICK2_BORDER;
 			break;
@@ -759,6 +924,12 @@ have_event:
 				key = KEYC_TRIPLECLICK3_PANE;
 			if (where == STATUS)
 				key = KEYC_TRIPLECLICK3_STATUS;
+			if (where == STATUS_LEFT)
+				key = KEYC_TRIPLECLICK3_STATUS_LEFT;
+			if (where == STATUS_RIGHT)
+				key = KEYC_TRIPLECLICK3_STATUS_RIGHT;
+			if (where == STATUS_DEFAULT)
+				key = KEYC_TRIPLECLICK3_STATUS_DEFAULT;
 			if (where == BORDER)
 				key = KEYC_TRIPLECLICK3_BORDER;
 			break;
@@ -807,21 +978,24 @@ server_client_assume_paste(struct session *s)
 void
 server_client_handle_key(struct client *c, key_code key)
 {
-	struct mouse_event	*m = &c->tty.mouse;
+	struct mouse_event		*m = &c->tty.mouse;
-	struct session		*s = c->session;
+	struct session			*s = c->session;
-	struct window		*w;
+	struct winlink			*wl;
-	struct window_pane	*wp;
+	struct window			*w;
-	struct timeval		 tv;
+	struct window_pane		*wp;
-	struct key_table	*table, *first;
+	struct window_mode_entry	*wme;
-	struct key_binding	 bd_find, *bd;
+	struct timeval			 tv;
-	int			 xtimeout, flags;
+	struct key_table		*table, *first;
-	struct cmd_find_state	 fs;
+	struct key_binding		*bd;
-	key_code		 key0;
+	int				 xtimeout, flags;
+	struct cmd_find_state		 fs;
+	key_code			 key0;
 
 	/* Check the client is good to accept input. */
 	if (s == NULL || (c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
 		return;
-	w = s->curw->window;
+	wl = s->curw;
+	w = wl->window;
 
 	/* Update the activity timer. */
 	if (gettimeofday(&c->activity_time, NULL) != 0)
@@ -834,8 +1008,6 @@ server_client_handle_key(struct client *c, key_code key)
 			return;
 		window_unzoom(w);
 		wp = window_pane_at_index(w, key - '0');
-		if (wp != NULL && !window_pane_visible(wp))
-			wp = NULL;
 		server_client_clear_identify(c, wp);
 		return;
 	}
@@ -882,11 +1054,11 @@ server_client_handle_key(struct client *c, key_code key)
 
 	/* Forward mouse keys if disabled. */
 	if (KEYC_IS_MOUSE(key) && !options_get_number(s->options, "mouse"))
-		goto forward;
+		goto forward_key;
 
 	/* Treat everything as a regular key when pasting is detected. */
 	if (!KEYC_IS_MOUSE(key) && server_client_assume_paste(s))
-		goto forward;
+		goto forward_key;
 
 	/*
 	 * Work out the current key table. If the pane is in a mode, use
@@ -894,18 +1066,18 @@ server_client_handle_key(struct client *c, key_code key)
 	 */
 	if (server_client_is_default_key_table(c, c->keytable) &&
 	    wp != NULL &&
-	    wp->mode != NULL &&
+	    (wme = TAILQ_FIRST(&wp->modes)) != NULL &&
-	    wp->mode->key_table != NULL)
+	    wme->mode->key_table != NULL)
-		table = key_bindings_get_table(wp->mode->key_table(wp), 1);
+		table = key_bindings_get_table(wme->mode->key_table(wme), 1);
 	else
 		table = c->keytable;
 	first = table;
 
+table_changed:
 	/*
 	 * The prefix always takes precedence and forces a switch to the prefix
 	 * table, unless we are already there.
 	 */
-retry:
 	key0 = (key & ~KEYC_XTERM);
 	if ((key0 == (key_code)options_get_number(s->options, "prefix") ||
 	    key0 == (key_code)options_get_number(s->options, "prefix2")) &&
@@ -916,6 +1088,7 @@ retry:
 	}
 	flags = c->flags;
 
+try_again:
 	/* Log key table. */
 	if (wp == NULL)
 		log_debug("key table %s (no pane)", table->name);
@@ -925,8 +1098,7 @@ retry:
 		log_debug("currently repeating");
 
 	/* Try to see if there is a key binding in the current table. */
-	bd_find.key = key0;
+	bd = key_bindings_get(table, key0);
-	bd = RB_FIND(key_bindings, &table->key_bindings, &bd_find);
 	if (bd != NULL) {
 		/*
 		 * Key was matched in this table. If currently repeating but a
@@ -935,11 +1107,13 @@ retry:
 		 */
 		if ((c->flags & CLIENT_REPEAT) &&
 		    (~bd->flags & KEY_BINDING_REPEAT)) {
+			log_debug("found in key table %s (not repeating)",
+			    table->name);
 			server_client_set_key_table(c, NULL);
+			first = table = c->keytable;
 			c->flags &= ~CLIENT_REPEAT;
 			server_status_client(c);
-			table = c->keytable;
+			goto table_changed;
-			goto retry;
 		}
 		log_debug("found in key table %s", table->name);
 
@@ -973,6 +1147,14 @@ retry:
 		return;
 	}
 
+	/*
+	 * No match, try the ANY key.
+	 */
+	if (key0 != KEYC_ANY) {
+		key0 = KEYC_ANY;
+		goto try_again;
+	}
+
 	/*
 	 * No match in this table. If not in the root table or if repeating,
 	 * switch the client back to the root table and try again.
@@ -980,11 +1162,14 @@ retry:
 	log_debug("not found in key table %s", table->name);
 	if (!server_client_is_default_key_table(c, table) ||
 	    (c->flags & CLIENT_REPEAT)) {
+		log_debug("trying in root table");
 		server_client_set_key_table(c, NULL);
+		table = c->keytable;
+		if (c->flags & CLIENT_REPEAT)
+			first = table;
 		c->flags &= ~CLIENT_REPEAT;
 		server_status_client(c);
-		table = c->keytable;
+		goto table_changed;
-		goto retry;
 	}
 
 	/*
@@ -997,11 +1182,11 @@ retry:
 		return;
 	}
 
-forward:
+forward_key:
 	if (c->flags & CLIENT_READONLY)
 		return;
 	if (wp != NULL)
-		window_pane_key(wp, c, s, key, m);
+		window_pane_key(wp, c, s, wl, key, m);
 }
 
 /* Client functions that need to happen every loop. */
@@ -1158,10 +1343,6 @@ server_client_check_focus(struct window_pane *wp)
 	push = wp->flags & PANE_FOCUSPUSH;
 	wp->flags &= ~PANE_FOCUSPUSH;
 
-	/* If we don't care about focus, forget it. */
-	if (!(wp->base.mode & MODE_FOCUSON))
-		return;
-
 	/* If we're not the active pane in our window, we're not focused. */
 	if (wp->window->active != wp)
 		goto not_focused;
@@ -1177,7 +1358,7 @@ server_client_check_focus(struct window_pane *wp)
 	TAILQ_FOREACH(c, &clients, entry) {
 		if (c->session == NULL || !(c->flags & CLIENT_FOCUSED))
 			continue;
-		if (c->session->flags & SESSION_UNATTACHED)
+		if (c->session->attached == 0)
 			continue;
 
 		if (c->session->curw->window == wp->window)
@@ -1185,14 +1366,20 @@ server_client_check_focus(struct window_pane *wp)
 	}
 
 not_focused:
-	if (push || (wp->flags & PANE_FOCUSED))
+	if (push || (wp->flags & PANE_FOCUSED)) {
-		bufferevent_write(wp->event, "\033[O", 3);
+		if (wp->base.mode & MODE_FOCUSON)
+			bufferevent_write(wp->event, "\033[O", 3);
+		notify_pane("pane-focus-out", wp);
+	}
 	wp->flags &= ~PANE_FOCUSED;
 	return;
 
 focused:
-	if (push || !(wp->flags & PANE_FOCUSED))
+	if (push || !(wp->flags & PANE_FOCUSED)) {
-		bufferevent_write(wp->event, "\033[I", 3);
+		if (wp->base.mode & MODE_FOCUSON)
+			bufferevent_write(wp->event, "\033[I", 3);
+		notify_pane("pane-focus-in", wp);
+	}
 	wp->flags |= PANE_FOCUSED;
 }
 
@@ -1212,28 +1399,37 @@ server_client_reset_state(struct client *c)
 	struct window_pane	*wp = w->active, *loop;
 	struct screen		*s = wp->screen;
 	struct options		*oo = c->session->options;
-	int			 lines, mode;
+	int			 mode, cursor = 0;
+	u_int			 cx = 0, cy = 0, ox, oy, sx, sy;
 
 	if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
 		return;
+	mode = s->mode;
 
 	tty_region_off(&c->tty);
 	tty_margin_off(&c->tty);
 
-	if (status_at_line(c) != 0)
+	/* Move cursor to pane cursor and offset. */
-		lines = 0;
+	cursor = 0;
-	else
+	tty_window_offset(&c->tty, &ox, &oy, &sx, &sy);
-		lines = status_line_size(c->session);
+	if (wp->xoff + s->cx >= ox && wp->xoff + s->cx <= ox + sx &&
-	if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - lines)
+	    wp->yoff + s->cy >= oy && wp->yoff + s->cy <= oy + sy) {
-		tty_cursor(&c->tty, 0, 0);
+		cursor = 1;
-	else
+
-		tty_cursor(&c->tty, wp->xoff + s->cx, lines + wp->yoff + s->cy);
+		cx = wp->xoff + s->cx - ox;
+		cy = wp->yoff + s->cy - oy;
+
+		if (status_at_line(c) == 0)
+			cy += status_line_size(c);
+	}
+	if (!cursor)
+		mode &= ~MODE_CURSOR;
+	tty_cursor(&c->tty, cx, cy);
 
 	/*
 	 * Set mouse mode if requested. To support dragging, always use button
 	 * mode.
 	 */
-	mode = s->mode;
 	if (options_get_number(oo, "mouse")) {
 		mode &= ~ALL_MOUSE_MODES;
 		TAILQ_FOREACH(loop, &w->panes, entry) {
@@ -1310,13 +1506,19 @@ server_client_check_redraw(struct client *c)
 	struct session		*s = c->session;
 	struct tty		*tty = &c->tty;
 	struct window_pane	*wp;
-	int			 needed, flags, masked;
+	int			 needed, flags;
 	struct timeval		 tv = { .tv_usec = 1000 };
 	static struct event	 ev;
 	size_t			 left;
 
 	if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
 		return;
+	if (c->flags & CLIENT_ALLREDRAWFLAGS) {
+		log_debug("%s: redraw%s%s%s", c->name,
+		    (c->flags & CLIENT_REDRAWWINDOW) ? " window" : "",
+		    (c->flags & CLIENT_REDRAWSTATUS) ? " status" : "",
+		    (c->flags & CLIENT_REDRAWBORDERS) ? " borders" : "");
+	}
 
 	/*
 	 * If there is outstanding data, defer the redraw until it has been
@@ -1324,7 +1526,7 @@ server_client_check_redraw(struct client *c)
 	 * end up back here.
 	 */
 	needed = 0;
-	if (c->flags & CLIENT_REDRAW)
+	if (c->flags & CLIENT_ALLREDRAWFLAGS)
 		needed = 1;
 	else {
 		TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
@@ -1347,25 +1549,19 @@ server_client_check_redraw(struct client *c)
 		 * We may have got here for a single pane redraw, but force a
 		 * full redraw next time in case other panes have been updated.
 		 */
-		c->flags |= CLIENT_REDRAW;
+		c->flags |= CLIENT_ALLREDRAWFLAGS;
 		return;
 	} else if (needed)
 		log_debug("%s: redraw needed", c->name);
 
-	if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
-		if (options_get_number(s->options, "set-titles"))
-			server_client_set_title(c);
-		screen_redraw_update(c); /* will adjust flags */
-	}
-
 	flags = tty->flags & (TTY_BLOCK|TTY_FREEZE|TTY_NOCURSOR);
 	tty->flags = (tty->flags & ~(TTY_BLOCK|TTY_FREEZE)) | TTY_NOCURSOR;
 
-	if (c->flags & CLIENT_REDRAW) {
+	if (~c->flags & CLIENT_REDRAWWINDOW) {
-		tty_update_mode(tty, tty->mode, NULL);
+		/*
-		screen_redraw_screen(c, 1, 1, 1);
+		 * If not redrawing the entire window, check whether each pane
-		c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
+		 * needs to be redrawn.
-	} else {
+		 */
 		TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
 			if (wp->flags & PANE_REDRAW) {
 				tty_update_mode(tty, tty->mode, NULL);
@@ -1374,21 +1570,16 @@ server_client_check_redraw(struct client *c)
 		}
 	}
 
-	masked = c->flags & (CLIENT_BORDERS|CLIENT_STATUS);
+	if (c->flags & CLIENT_ALLREDRAWFLAGS) {
-	if (masked != 0)
+		if (options_get_number(s->options, "set-titles"))
-		tty_update_mode(tty, tty->mode, NULL);
+			server_client_set_title(c);
-	if (masked == CLIENT_BORDERS)
+		screen_redraw_screen(c);
-		screen_redraw_screen(c, 0, 0, 1);
+	}
-	else if (masked == CLIENT_STATUS)
-		screen_redraw_screen(c, 0, 1, 0);
-	else if (masked != 0)
-		screen_redraw_screen(c, 0, 1, 1);
 
 	tty->flags = (tty->flags & ~(TTY_FREEZE|TTY_NOCURSOR)) | flags;
 	tty_update_mode(tty, tty->mode, NULL);
 
-	c->flags &= ~(CLIENT_REDRAW|CLIENT_BORDERS|CLIENT_STATUS|
+	c->flags &= ~(CLIENT_ALLREDRAWFLAGS|CLIENT_STATUSFORCE);
-	    CLIENT_STATUSFORCE);
 
 	if (needed) {
 		/*
@@ -1415,7 +1606,7 @@ server_client_set_title(struct client *c)
 	ft = format_create(c, NULL, FORMAT_NONE, 0);
 	format_defaults(ft, c, NULL, NULL, NULL);
 
-	title = format_expand_time(ft, template, time(NULL));
+	title = format_expand_time(ft, template);
 	if (c->title == NULL || strcmp(title, c->title) != 0) {
 		free(c->title);
 		c->title = xstrdup(title);
@@ -1861,15 +2052,21 @@ server_client_add_message(struct client *c, const char *fmt, ...)
 
 /* Get client working directory. */
 const char *
-server_client_get_cwd(struct client *c)
+server_client_get_cwd(struct client *c, struct session *s)
 {
-	struct session	*s;
+	const char	*home;
 
+	if (!cfg_finished && cfg_client != NULL)
+		return (cfg_client->cwd);
 	if (c != NULL && c->session == NULL && c->cwd != NULL)
 		return (c->cwd);
+	if (s != NULL && s->cwd != NULL)
+		return (s->cwd);
 	if (c != NULL && (s = c->session) != NULL && s->cwd != NULL)
 		return (s->cwd);
-	return (".");
+	if ((home = find_home()) != NULL)
+		return (home);
+	return ("/");
 }
 
 /* Resolve an absolute path or relative to client working directory. */
@@ -1881,7 +2078,7 @@ server_client_get_path(struct client *c, const char *file)
 	if (*file == '/')
 		path = xstrdup(file);
 	else
-		xasprintf(&path, "%s/%s", server_client_get_cwd(c), file);
+		xasprintf(&path, "%s/%s", server_client_get_cwd(c, NULL), file);
 	if (realpath(path, resolved) == NULL)
 		return (path);
 	free(path);

server-fn.c

@@ -33,13 +33,13 @@ static void		 server_destroy_session_group(struct session *);
 void
 server_redraw_client(struct client *c)
 {
-	c->flags |= CLIENT_REDRAW;
+	c->flags |= CLIENT_ALLREDRAWFLAGS;
 }
 
 void
 server_status_client(struct client *c)
 {
-	c->flags |= CLIENT_STATUS;
+	c->flags |= CLIENT_REDRAWSTATUS;
 }
 
 void
@@ -108,7 +108,7 @@ server_redraw_window_borders(struct window *w)
 
 	TAILQ_FOREACH(c, &clients, entry) {
 		if (c->session != NULL && c->session->curw->window == w)
-			c->flags |= CLIENT_BORDERS;
+			c->flags |= CLIENT_REDRAWBORDERS;
 	}
 }
 
@@ -175,6 +175,22 @@ server_lock_client(struct client *c)
 	proc_send(c->peer, MSG_LOCK, -1, cmd, strlen(cmd) + 1);
 }
 
+void
+server_kill_pane(struct window_pane *wp)
+{
+	struct window	*w = wp->window;
+
+	if (window_count_panes(w) == 1) {
+		server_kill_window(w);
+		recalculate_sizes();
+	} else {
+		server_unzoom_window(w);
+		layout_close_pane(wp);
+		window_remove_pane(w, wp);
+		server_redraw_window(w);
+	}
+}
+
 void
 server_kill_window(struct window *w)
 {
@@ -287,6 +303,7 @@ server_destroy_pane(struct window_pane *wp, int notify)
 		utempter_remove_record(wp->fd);
 #endif
 		bufferevent_free(wp->event);
+		wp->event = NULL;
 		close(wp->fd);
 		wp->fd = -1;
 	}
@@ -304,7 +321,7 @@ server_destroy_pane(struct window_pane *wp, int notify)
 
 		screen_write_start(&ctx, wp, &wp->base);
 		screen_write_scrollregion(&ctx, 0, screen_size_y(ctx.s) - 1);
-		screen_write_cursormove(&ctx, 0, screen_size_y(ctx.s) - 1);
+		screen_write_cursormove(&ctx, 0, screen_size_y(ctx.s) - 1, 0);
 		screen_write_linefeed(&ctx, 1, 8);
 		memcpy(&gc, &grid_default_cell, sizeof gc);
 
@@ -394,6 +411,7 @@ server_destroy_session(struct session *s)
 			c->last_session = NULL;
 			c->session = s_new;
 			server_client_set_key_table(c, NULL);
+			tty_update_client_offset(c);
 			status_timer_start(c);
 			notify_client("client-session-changed", c);
 			session_update_activity(s_new, NULL);
@@ -415,7 +433,7 @@ server_check_unattached(void)
 	 * set, collect them.
 	 */
 	RB_FOREACH(s, sessions, &sessions) {
-		if (!(s->flags & SESSION_UNATTACHED))
+		if (s->attached != 0)
 			continue;
 		if (options_get_number (s->options, "destroy-unattached"))
 			session_destroy(s, __func__);

server.c

@@ -161,7 +161,6 @@ server_start(struct tmuxproc *client, struct event_base *base, int lockfd,
     char *lockfile)
 {
 	int		 pair[2];
-	struct job	*job;
 	sigset_t	 set, oldset;
 	struct client	*c;
 	char		*cause = NULL;
@@ -201,7 +200,6 @@ server_start(struct tmuxproc *client, struct event_base *base, int lockfd,
 	RB_INIT(&all_window_panes);
 	TAILQ_INIT(&clients);
 	RB_INIT(&sessions);
-	RB_INIT(&session_groups);
 	key_bindings_init();
 
 	gettimeofday(&start_time, NULL);
@@ -223,17 +221,13 @@ server_start(struct tmuxproc *client, struct event_base *base, int lockfd,
 	}
 
 	start_cfg();
-
 	server_add_accept(0);
 
 	proc_loop(server_proc, server_loop);
 
-	LIST_FOREACH(job, &all_jobs, entry) {
+	job_kill_all();
-		if (job->pid != -1)
-			kill(job->pid, SIGTERM);
-	}
-
 	status_prompt_save_history();
+
 	exit(0);
 }
 
@@ -243,7 +237,6 @@ server_loop(void)
 {
 	struct client	*c;
 	u_int		 items;
-	struct job	*job;
 
 	do {
 		items = cmdq_next(NULL);
@@ -276,10 +269,8 @@ server_loop(void)
 	if (!TAILQ_EMPTY(&clients))
 		return (0);
 
-	LIST_FOREACH(job, &all_jobs, entry) {
+	if (job_still_running())
-		if ((~job->flags & JOB_NOWAIT) && job->state == JOB_RUNNING)
+		return (0);
-			return (0);
-	}
 
 	return (1);
 }
@@ -319,7 +310,7 @@ server_update_socket(void)
 
 	n = 0;
 	RB_FOREACH(s, sessions, &sessions) {
-		if (!(s->flags & SESSION_UNATTACHED)) {
+		if (s->attached != 0) {
 			n++;
 			break;
 		}
@@ -457,7 +448,6 @@ server_child_exited(pid_t pid, int status)
 {
 	struct window		*w, *w1;
 	struct window_pane	*wp;
-	struct job		*job;
 
 	RB_FOREACH_SAFE(w, windows, &windows, w1) {
 		TAILQ_FOREACH(wp, &w->panes, entry) {
@@ -474,13 +464,7 @@ server_child_exited(pid_t pid, int status)
 			}
 		}
 	}
-
+	job_check_died(pid, status);
-	LIST_FOREACH(job, &all_jobs, entry) {
-		if (pid == job->pid) {
-			job_died(job, status);	/* might free job */
-			break;
-		}
-	}
 }
 
 /* Handle stopped children. */

session.c

@@ -28,7 +28,7 @@
 
 struct sessions		sessions;
 static u_int		next_session_id;
-struct session_groups	session_groups;
+struct session_groups	session_groups = RB_INITIALIZER(&session_groups);
 
 static void	session_free(int, short, void *);
 
@@ -40,21 +40,19 @@ static struct winlink *session_previous_alert(struct winlink *);
 static void	session_group_remove(struct session *);
 static void	session_group_synchronize1(struct session *, struct session *);
 
-RB_GENERATE(sessions, session, entry, session_cmp);
-
 int
 session_cmp(struct session *s1, struct session *s2)
 {
 	return (strcmp(s1->name, s2->name));
 }
+RB_GENERATE(sessions, session, entry, session_cmp);
 
-RB_GENERATE(session_groups, session_group, entry, session_group_cmp);
+static int
-
-int
 session_group_cmp(struct session_group *s1, struct session_group *s2)
 {
 	return (strcmp(s1->name, s2->name));
 }
+RB_GENERATE_STATIC(session_groups, session_group, entry, session_group_cmp);
 
 /*
  * Find if session is still alive. This is true if it is still on the global
@@ -114,8 +112,8 @@ session_find_by_id(u_int id)
 /* Create a new session. */
 struct session *
 session_create(const char *prefix, const char *name, int argc, char **argv,
-    const char *path, const char *cwd, struct environ *env, struct termios *tio,
+    const char *path, const char *cwd, struct environ *env, struct options *oo,
-    int idx, u_int sx, u_int sy, char **cause)
+    struct termios *tio, int idx, char **cause)
 {
 	struct session	*s;
 	struct winlink	*wl;
@@ -134,10 +132,10 @@ session_create(const char *prefix, const char *name, int argc, char **argv,
 	if (env != NULL)
 		environ_copy(env, s->environ);
 
-	s->options = options_create(global_s_options);
+	s->options = oo;
 	s->hooks = hooks_create(global_hooks);
 
-	status_update_saved(s);
+	status_update_cache(s);
 
 	s->tio = NULL;
 	if (tio != NULL) {
@@ -145,9 +143,6 @@ session_create(const char *prefix, const char *name, int argc, char **argv,
 		memcpy(s->tio, tio, sizeof *s->tio);
 	}
 
-	s->sx = sx;
-	s->sy = sy;
-
 	if (name != NULL) {
 		s->name = xstrdup(name);
 		s->id = next_session_id++;
@@ -267,7 +262,7 @@ session_lock_timer(__unused int fd, __unused short events, void *arg)
 {
 	struct session	*s = arg;
 
-	if (s->flags & SESSION_UNATTACHED)
+	if (s->attached == 0)
 		return;
 
 	log_debug("session %s locked, activity time %lld", s->name,
@@ -290,16 +285,17 @@ session_update_activity(struct session *s, struct timeval *from)
 	else
 		memcpy(&s->activity_time, from, sizeof s->activity_time);
 
-	log_debug("session %s activity %lld.%06d (last %lld.%06d)", s->name,
+	log_debug("session $%u %s activity %lld.%06d (last %lld.%06d)", s->id,
-	    (long long)s->activity_time.tv_sec, (int)s->activity_time.tv_usec,
+	    s->name, (long long)s->activity_time.tv_sec,
-	    (long long)last->tv_sec, (int)last->tv_usec);
+	    (int)s->activity_time.tv_usec, (long long)last->tv_sec,
+	    (int)last->tv_usec);
 
 	if (evtimer_initialized(&s->lock_timer))
 		evtimer_del(&s->lock_timer);
 	else
 		evtimer_set(&s->lock_timer, session_lock_timer, s);
 
-	if (~s->flags & SESSION_UNATTACHED) {
+	if (s->attached != 0) {
 		timerclear(&tv);
 		tv.tv_sec = options_get_number(s->options, "lock-after-time");
 		if (tv.tv_sec != 0)
@@ -350,7 +346,7 @@ session_new(struct session *s, const char *name, int argc, char **argv,
 	struct winlink	*wl;
 	struct environ	*env;
 	const char	*shell;
-	u_int		 hlimit;
+	u_int		 hlimit, sx, sy;
 
 	if ((wl = winlink_add(&s->windows, idx)) == NULL) {
 		xasprintf(cause, "index in use: %d", idx);
@@ -362,10 +358,11 @@ session_new(struct session *s, const char *name, int argc, char **argv,
 	if (*shell == '\0' || areshell(shell))
 		shell = _PATH_BSHELL;
 
+	default_window_size(s, NULL, &sx, &sy, -1);
 	hlimit = options_get_number(s->options, "history-limit");
 	env = environ_for_session(s, 0);
 	w = window_create_spawn(name, argc, argv, path, shell, cwd, env, s->tio,
-	    s->sx, s->sy, hlimit, cause);
+	    sx, sy, hlimit, cause);
 	if (w == NULL) {
 		winlink_remove(&s->windows, wl);
 		environ_free(env);
@@ -548,6 +545,7 @@ session_set_current(struct session *s, struct winlink *wl)
 	s->curw = wl;
 	winlink_clear_flags(wl);
 	window_update_activity(wl->window);
+	tty_update_window_offset(wl->window);
 	notify_session("session-window-changed", s);
 	return (0);
 }

style.c

@@ -19,32 +19,51 @@
 
 #include <sys/types.h>
 
+#include <ctype.h>
+#include <stdlib.h>
 #include <string.h>
 
 #include "tmux.h"
 
-/* Parse an embedded style of the form "fg=colour,bg=colour,bright,...". */
+/* Mask for bits not included in style. */
+#define STYLE_ATTR_MASK (~GRID_ATTR_CHARSET)
+
+/* Default style. */
+static struct style style_default = {
+	{ 0, 0, 8, 8, { { ' ' }, 0, 1, 1 } },
+
+	STYLE_ALIGN_DEFAULT,
+	STYLE_LIST_OFF,
+
+	STYLE_RANGE_NONE, 0
+};
+
+/*
+ * Parse an embedded style of the form "fg=colour,bg=colour,bright,...".
+ * Note that this adds onto the given style, so it must have been initialized
+ * alredy.
+ */
 int
-style_parse(const struct grid_cell *defgc, struct grid_cell *gc,
+style_parse(struct style *sy, const struct grid_cell *base, const char *in)
-    const char *in)
 {
-	struct grid_cell	savedgc;
+	struct style	saved;
-	const char		delimiters[] = " ,";
+	const char	delimiters[] = " ,", *cp;
-	char			tmp[32];
+	char		tmp[256], *found;
-	int			val, fg, bg, attr, flags;
+	int		value;
-	size_t			end;
+	size_t		end;
 
 	if (*in == '\0')
 		return (0);
-	if (strchr(delimiters, in[strlen(in) - 1]) != NULL)
+	style_copy(&saved, sy);
-		return (-1);
-	memcpy(&savedgc, gc, sizeof savedgc);
 
-	fg = gc->fg;
-	bg = gc->bg;
-	attr = gc->attr;
-	flags = gc->flags;
 	do {
+		while (*in != '\0' && strchr(delimiters, *in) != NULL) {
+			in++;
+			end--;
+		}
+		if (*in == '\0')
+			break;
+
 		end = strcspn(in, delimiters);
 		if (end > (sizeof tmp) - 1)
 			goto error;
@@ -52,74 +71,164 @@ style_parse(const struct grid_cell *defgc, struct grid_cell *gc,
 		tmp[end] = '\0';
 
 		if (strcasecmp(tmp, "default") == 0) {
-			fg = defgc->fg;
+			sy->gc.fg = base->fg;
-			bg = defgc->bg;
+			sy->gc.bg = base->bg;
-			attr = defgc->attr;
+			sy->gc.attr = base->attr;
-			flags = defgc->flags;
+			sy->gc.flags = base->flags;
+		} else if (strcasecmp(tmp, "nolist") == 0)
+			sy->list = STYLE_LIST_OFF;
+		else if (strncasecmp(tmp, "list=", 5) == 0) {
+			if (strcasecmp(tmp + 5, "on") == 0)
+				sy->list = STYLE_LIST_ON;
+			else if (strcasecmp(tmp + 5, "focus") == 0)
+				sy->list = STYLE_LIST_FOCUS;
+			else if (strcasecmp(tmp + 5, "left-marker") == 0)
+				sy->list = STYLE_LIST_LEFT_MARKER;
+			else if (strcasecmp(tmp + 5, "right-marker") == 0)
+				sy->list = STYLE_LIST_RIGHT_MARKER;
+			else
+				goto error;
+		} else if (strcasecmp(tmp, "norange") == 0) {
+			sy->range_type = style_default.range_type;
+			sy->range_argument = style_default.range_type;
+		} else if (end > 6 && strncasecmp(tmp, "range=", 6) == 0) {
+			found = strchr(tmp + 6, '|');
+			if (found != NULL) {
+				*found++ = '\0';
+				if (*found == '\0')
+					goto error;
+				for (cp = found; *cp != '\0'; cp++) {
+					if (!isdigit((u_char)*cp))
+						goto error;
+				}
+			}
+			if (strcasecmp(tmp + 6, "left") == 0) {
+				if (found != NULL)
+					goto error;
+				sy->range_type = STYLE_RANGE_LEFT;
+				sy->range_argument = 0;
+			} else if (strcasecmp(tmp + 6, "right") == 0) {
+				if (found != NULL)
+					goto error;
+				sy->range_type = STYLE_RANGE_RIGHT;
+				sy->range_argument = 0;
+			} else if (strcasecmp(tmp + 6, "window") == 0) {
+				if (found == NULL)
+					goto error;
+				sy->range_type = STYLE_RANGE_WINDOW;
+				sy->range_argument = atoi(found);
+			}
+		} else if (strcasecmp(tmp, "noalign") == 0)
+			sy->align = style_default.align;
+		else if (end > 6 && strncasecmp(tmp, "align=", 6) == 0) {
+			if (strcasecmp(tmp + 6, "left") == 0)
+				sy->align = STYLE_ALIGN_LEFT;
+			else if (strcasecmp(tmp + 6, "centre") == 0)
+				sy->align = STYLE_ALIGN_CENTRE;
+			else if (strcasecmp(tmp + 6, "right") == 0)
+				sy->align = STYLE_ALIGN_RIGHT;
+			else
+				goto error;
 		} else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
-			if ((val = colour_fromstring(tmp + 3)) == -1)
+			if ((value = colour_fromstring(tmp + 3)) == -1)
 				goto error;
 			if (*in == 'f' || *in == 'F') {
-				if (val != 8)
+				if (value != 8)
-					fg = val;
+					sy->gc.fg = value;
 				else
-					fg = defgc->fg;
+					sy->gc.fg = base->fg;
 			} else if (*in == 'b' || *in == 'B') {
-				if (val != 8)
+				if (value != 8)
-					bg = val;
+					sy->gc.bg = value;
 				else
-					bg = defgc->bg;
+					sy->gc.bg = base->bg;
 			} else
 				goto error;
 		} else if (strcasecmp(tmp, "none") == 0)
-			attr = 0;
+			sy->gc.attr = 0;
 		else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
-			if ((val = attributes_fromstring(tmp + 2)) == -1)
+			if ((value = attributes_fromstring(tmp + 2)) == -1)
 				goto error;
-			attr &= ~val;
+			sy->gc.attr &= ~value;
 		} else {
-			if ((val = attributes_fromstring(tmp)) == -1)
+			if ((value = attributes_fromstring(tmp)) == -1)
 				goto error;
-			attr |= val;
+			sy->gc.attr |= value;
 		}
 
 		in += end + strspn(in + end, delimiters);
 	} while (*in != '\0');
-	gc->fg = fg;
-	gc->bg = bg;
-	gc->attr = attr;
-	gc->flags = flags;
 
 	return (0);
 
 error:
-	memcpy(gc, &savedgc, sizeof *gc);
+	style_copy(sy, &saved);
 	return (-1);
 }
 
 /* Convert style to a string. */
 const char *
-style_tostring(struct grid_cell *gc)
+style_tostring(struct style *sy)
 {
-	int		 off = 0, comma = 0;
+	struct grid_cell	*gc = &sy->gc;
-	static char	 s[256];
+	int			 off = 0;
+	const char		*comma = "", *tmp;
+	static char		 s[256];
+	char			 b[16];
 
 	*s = '\0';
 
+	if (sy->list != STYLE_LIST_OFF) {
+		if (sy->list == STYLE_LIST_ON)
+			tmp = "on";
+		else if (sy->list == STYLE_LIST_FOCUS)
+			tmp = "focus";
+		else if (sy->list == STYLE_LIST_LEFT_MARKER)
+			tmp = "left-marker";
+		else if (sy->list == STYLE_LIST_RIGHT_MARKER)
+			tmp = "right-marker";
+		off += xsnprintf(s + off, sizeof s - off, "%slist=%s", comma,
+		    tmp);
+		comma = ",";
+	}
+	if (sy->range_type != STYLE_RANGE_NONE) {
+		if (sy->range_type == STYLE_RANGE_LEFT)
+			tmp = "left";
+		else if (sy->range_type == STYLE_RANGE_RIGHT)
+			tmp = "right";
+		else if (sy->range_type == STYLE_RANGE_WINDOW) {
+			snprintf(b, sizeof b, "window|%u", sy->range_argument);
+			tmp = b;
+		}
+		off += xsnprintf(s + off, sizeof s - off, "%srange=%s", comma,
+		    tmp);
+		comma = ",";
+	}
+	if (sy->align != STYLE_ALIGN_DEFAULT) {
+		if (sy->align == STYLE_ALIGN_LEFT)
+			tmp = "left";
+		else if (sy->align == STYLE_ALIGN_CENTRE)
+			tmp = "centre";
+		else if (sy->align == STYLE_ALIGN_RIGHT)
+			tmp = "right";
+		off += xsnprintf(s + off, sizeof s - off, "%salign=%s", comma,
+		    tmp);
+		comma = ",";
+	}
 	if (gc->fg != 8) {
-		off += xsnprintf(s, sizeof s, "fg=%s", colour_tostring(gc->fg));
+		off += xsnprintf(s + off, sizeof s - off, "%sfg=%s", comma,
-		comma = 1;
+		    colour_tostring(gc->fg));
+		comma = ",";
 	}
-
 	if (gc->bg != 8) {
-		off += xsnprintf(s + off, sizeof s - off, "%sbg=%s",
+		off += xsnprintf(s + off, sizeof s - off, "%sbg=%s", comma,
-		    comma ? "," : "", colour_tostring(gc->bg));
+		    colour_tostring(gc->bg));
-		comma = 1;
+		comma = ",";
 	}
-
 	if (gc->attr != 0 && gc->attr != GRID_ATTR_CHARSET) {
-		xsnprintf(s + off, sizeof s - off, "%s%s",
+		xsnprintf(s + off, sizeof s - off, "%s%s", comma,
-		    comma ? "," : "", attributes_tostring(gc->attr));
+		    attributes_tostring(gc->attr));
+		comma = ",";
 	}
 
 	if (*s == '\0')
@@ -131,38 +240,66 @@ style_tostring(struct grid_cell *gc)
 void
 style_apply(struct grid_cell *gc, struct options *oo, const char *name)
 {
-	const struct grid_cell	*gcp;
+	struct style	*sy;
 
 	memcpy(gc, &grid_default_cell, sizeof *gc);
-	gcp = options_get_style(oo, name);
+	sy = options_get_style(oo, name);
-	gc->fg = gcp->fg;
+	gc->fg = sy->gc.fg;
-	gc->bg = gcp->bg;
+	gc->bg = sy->gc.bg;
-	gc->attr |= gcp->attr;
+	gc->attr |= sy->gc.attr;
 }
 
 /* Apply a style, updating if default. */
 void
 style_apply_update(struct grid_cell *gc, struct options *oo, const char *name)
 {
-	const struct grid_cell	*gcp;
+	struct style	*sy;
 
-	gcp = options_get_style(oo, name);
+	sy = options_get_style(oo, name);
-	if (gcp->fg != 8)
+	if (sy->gc.fg != 8)
-		gc->fg = gcp->fg;
+		gc->fg = sy->gc.fg;
-	if (gcp->bg != 8)
+	if (sy->gc.bg != 8)
-		gc->bg = gcp->bg;
+		gc->bg = sy->gc.bg;
-	if (gcp->attr != 0)
+	if (sy->gc.attr != 0)
-		gc->attr |= gcp->attr;
+		gc->attr |= sy->gc.attr;
 }
 
-/* Check if two styles are the same. */
+/* Initialize style from cell. */
-int
+void
-style_equal(const struct grid_cell *gc1, const struct grid_cell *gc2)
+style_set(struct style *sy, const struct grid_cell *gc)
 {
-	return (gc1->fg == gc2->fg &&
+	memcpy(sy, &style_default, sizeof *sy);
-	    gc1->bg == gc2->bg &&
+	memcpy(&sy->gc, gc, sizeof sy->gc);
-	    (gc1->flags & ~GRID_FLAG_PADDING) ==
+}
-	    (gc2->flags & ~GRID_FLAG_PADDING) &&
+
-	    (gc1->attr & ~GRID_ATTR_CHARSET) ==
+/* Copy style. */
-	    (gc2->attr & ~GRID_ATTR_CHARSET));
+void
+style_copy(struct style *dst, struct style *src)
+{
+	memcpy(dst, src, sizeof *dst);
+}
+
+/* Check if two styles are (visibly) the same. */
+int
+style_equal(struct style *sy1, struct style *sy2)
+{
+	struct grid_cell	*gc1 = &sy1->gc;
+	struct grid_cell	*gc2 = &sy2->gc;
+
+	if (gc1->fg != gc2->fg)
+		return (0);
+	if (gc1->bg != gc2->bg)
+		return (0);
+	if ((gc1->attr & STYLE_ATTR_MASK) != (gc2->attr & STYLE_ATTR_MASK))
+		return (0);
+	if (sy1->align != sy2->align)
+		return (0);
+	return (1);
+}
+
+/* Is this style default? */
+int
+style_is_default(struct style *sy)
+{
+	return (style_equal(sy, &style_default));
 }

tmux.1

@@ -234,7 +234,7 @@ If no commands are specified, the
 .Ic new-session
 command is assumed.
 .El
-.Sh KEY BINDINGS
+.Sh DEFAULT KEY BINDINGS
 .Nm
 may be controlled from an attached client by using a key combination of a
 prefix key,
@@ -255,6 +255,7 @@ client.
 .It !
 Break the current pane out of the window.
 .It \&"
+.\" "
 Split the current pane into two, top and bottom.
 .It #
 List all paste buffers.
@@ -628,13 +629,13 @@ refers to a
 .Nm
 command, passed with the command and arguments separately, for example:
 .Bd -literal -offset indent
-bind-key F1 set-window-option force-width 81
+bind-key F1 set-option status off
 .Ed
 .Pp
 Or if using
 .Xr sh 1 :
 .Bd -literal -offset indent
-$ tmux bind-key F1 set-window-option force-width 81
+$ tmux bind-key F1 set-option status off
 .Ed
 .Pp
 Multiple commands may be specified together as part of a
@@ -850,11 +851,22 @@ and
 are the name of and shell command to execute in the initial window.
 With
 .Fl d ,
-the initial size is 80 x 24;
+the initial size comes from the global
+.Ar default-size
+option;
 .Fl x
 and
 .Fl y
 can be used to specify a different size.
+.Ql -
+uses the size of the current client if any.
+If
+.Fl x
+or
+.Fl y
+is given, the
+.Ar default-size
+option is set for the session.
 .Pp
 If run from a terminal, any
 .Xr termios 4
@@ -919,9 +931,10 @@ is used, the
 .Ic update-environment
 option will not be applied.
 .It Xo Ic refresh-client
+.Op Fl cDlLRSU
 .Op Fl C Ar width,height
-.Op Fl S
 .Op Fl t Ar target-client
+.Op Ar adjustment
 .Xc
 .D1 (alias: Ic refresh )
 Refresh the current client if bound to a key, or a single client if one is given
@@ -931,8 +944,57 @@ If
 .Fl S
 is specified, only update the client's status line.
 .Pp
+The
+.Fl U ,
+.Fl D ,
+.Fl L
+.Fl R ,
+and
+.Fl c
+flags allow the visible portion of a window which is larger than the client
+to be changed.
+.Fl U
+moves the visible part up by
+.Ar adjustment
+rows and
+.Fl D
+down,
+.Fl L
+left by
+.Ar adjustment
+columns and
+.Fl R
+right.
+.Fl c
+returns to tracking the cursor automatically.
+If
+.Ar adjustment
+is omitted, 1 is used.
+Note that the visible position is a property of the client not of the
+window, changing the current window in the attached session will reset
+it.
+.Pp
 .Fl C
 sets the width and height of a control client.
+.Fl l
+requests the clipboard from the client using the
+.Xr xterm 1
+escape sequence and stores it in a new paste buffer.
+.Pp
+.Fl L ,
+.Fl R ,
+.Fl U
+and
+.Fl D
+move the visible portion of the window left, right, up or down
+by
+.Ar adjustment ,
+if the window is larger than the client.
+.Fl c
+resets so that the position follows the cursor.
+See the
+.Ic window-size
+option.
 .It Xo Ic rename-session
 .Op Fl t Ar target-session
 .Ar new-name
@@ -966,7 +1028,7 @@ show debugging information about jobs and terminals.
 Execute commands from
 .Ar path
 (which may be a
-.Xr glob 3
+.Xr glob 7
 pattern).
 If
 .Fl q
@@ -1463,6 +1525,8 @@ The following keys may be used in tree mode:
 .It Li "Enter" Ta "Choose selected item"
 .It Li "Up" Ta "Select previous item"
 .It Li "Down" Ta "Select next item"
+.It Li "x" Ta "Kill selected item"
+.It Li "X" Ta "Kill tagged items"
 .It Li "<" Ta "Scroll list of previews left"
 .It Li ">" Ta "Scroll list of previews right"
 .It Li "C-s" Ta "Search by name"
@@ -1506,6 +1570,7 @@ first.
 This command works only if at least one client is attached.
 .It Xo
 .Ic display-panes
+.Op Fl b
 .Op Fl d Ar duration
 .Op Fl t Ar target-client
 .Op Ar template
@@ -1539,8 +1604,11 @@ substituted by the pane ID.
 The default
 .Ar template
 is "select-pane -t '%%'".
+With
+.Fl b ,
+other commands are not blocked from running until the indicator is closed.
 .It Xo Ic find-window
-.Op Fl CNT
+.Op Fl CNTZ
 .Op Fl t Ar target-pane
 .Ar match-string
 .Xc
@@ -1559,6 +1627,8 @@ matches only the window name and
 matches only the window title.
 The default is
 .Fl CNT .
+.Fl Z
+zooms the pane.
 .Pp
 This command works only if at least one client is attached.
 .It Xo Ic join-pane
@@ -1912,6 +1982,38 @@ and unzoomed (its normal position in the layout).
 .Fl M
 begins mouse resizing (only valid if bound to a mouse key binding, see
 .Sx MOUSE SUPPORT ) .
+.It Xo Ic resize-window
+.Op Fl aADLRU
+.Op Fl t Ar target-window
+.Op Fl x Ar width
+.Op Fl y Ar height
+.Op Ar adjustment
+.Xc
+.D1 (alias: Ic resizew )
+Resize a window, up, down, left or right by
+.Ar adjustment
+with
+.Fl U ,
+.Fl D ,
+.Fl L
+or
+.Fl R ,
+or
+to an absolute size
+with
+.Fl x
+or
+.Fl y .
+The
+.Ar adjustment
+is given in lines or cells (the default is 1).
+.Fl A
+sets the size of the largest session containing the window;
+.Fl a
+the size of the smallest.
+This command will automatically set
+.Ic window-size
+to manual in the window options.
 .It Xo Ic respawn-pane
 .Op Fl c Ar start-directory
 .Op Fl k
@@ -2655,6 +2757,16 @@ The default is an empty string, which instructs
 to create a login shell using the value of the
 .Ic default-shell
 option.
+.It Ic default-size Ar XxY
+Set the default size of new windows when the
+.Ar window-size
+option is set to manual or when a session is created with
+.Ic new-session
+.Fl d .
+The value is the width and height separated by an
+.Ql x
+character.
+The default is 80x24.
 .It Ic default-shell Ar path
 Specify the default shell.
 This is used as the login shell for new windows when the
@@ -2671,6 +2783,10 @@ or
 This option should be configured when
 .Nm
 is used as a login shell.
+.It Ic default-size Ar XxY
+Set the default size of windows when the size is not set or the
+.Ic window-size
+option is manual.
 .It Xo Ic destroy-unattached
 .Op Ic on | off
 .Xc
@@ -2724,74 +2840,19 @@ The default is to run
 with
 .Fl np .
 .It Ic message-command-style Ar style
-Set status line message command style, where
+Set status line message command style.
-.Ar style
+For how to specify
-is a comma-separated list of characteristics to be specified.
+.Ar style ,
-.Pp
+see the
-These may be
+.Sx STYLES
-.Ql bg=colour
+section.
-to set the background colour,
-.Ql fg=colour
-to set the foreground colour, and a list of attributes as specified below.
-.Pp
-The colour is one of:
-.Ic black ,
-.Ic red ,
-.Ic green ,
-.Ic yellow ,
-.Ic blue ,
-.Ic magenta ,
-.Ic cyan ,
-.Ic white ,
-aixterm bright variants (if supported:
-.Ic brightred ,
-.Ic brightgreen ,
-and so on),
-.Ic colour0
-to
-.Ic colour255
-from the 256-colour set,
-.Ic default ,
-or a hexadecimal RGB string such as
-.Ql #ffffff ,
-which chooses the closest match from the default 256-colour set.
-.Pp
-The attributes is either
-.Ic none
-or a comma-delimited list of one or more of:
-.Ic bright
-(or
-.Ic bold ) ,
-.Ic dim ,
-.Ic underscore ,
-.Ic blink ,
-.Ic reverse ,
-.Ic hidden ,
-.Ic italics ,
-or
-.Ic strikethrough
-to turn an attribute on, or an attribute prefixed with
-.Ql no
-to turn one off.
-.Pp
-Examples are:
-.Bd -literal -offset indent
-fg=yellow,bold,underscore,blink
-bg=black,fg=default,noreverse
-.Ed
-.Pp
-With the
-.Fl a
-flag to the
-.Ic set-option
-command the new style is added otherwise the existing style is replaced.
 .It Ic message-style Ar style
 Set status line message style.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .It Xo Ic mouse
 .Op Ic on | off
 .Xc
@@ -2867,9 +2928,22 @@ is on.
 The values are the same as those for
 .Ic activity-action .
 .It Xo Ic status
-.Op Ic on | off
+.Op Ic off | on | 2 | 3 | 4 | 5
 .Xc
-Show or hide the status line.
+Show or hide the status line or specify its size.
+Using
+.Ic on
+gives a status line one row in height;
+.Ic 2 ,
+.Ic 3 ,
+.Ic 4
+or
+.Ic 5
+more rows.
+.It Ic status-format[] Ar format
+Specify the format to be used for each line of the status line.
+The default builds the top status line from the various individual status
+options below.
 .It Ic status-interval Ar interval
 Update the status line every
 .Ar interval
@@ -2898,17 +2972,12 @@ Display
 (by default the session name) to the left of the status line.
 .Ar string
 will be passed through
-.Xr strftime 3
+.Xr strftime 3 .
-and formats (see
+Also see the
-.Sx FORMATS )
+.Sx FORMATS
-will be expanded.
+and
-It may also contain the special character sequence #[] to change the colour
+.Sx STYLES
-or attributes, for example
+sections.
-.Ql #[fg=red,bright]
-to set a bright red foreground.
-See the
-.Ic message-command-style
-option for a description of colours and attributes.
 .Pp
 For details on how the names and titles can be set see the
 .Sx "NAMES AND TITLES"
@@ -2932,8 +3001,8 @@ Set the style of the left part of the status line.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .It Xo Ic status-position
 .Op Ic top | bottom
 .Xc
@@ -2960,15 +3029,15 @@ Set the style of the right part of the status line.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .It Ic status-style Ar style
 Set status line style.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .It Ic update-environment[] Ar variable
 Set list of environment variables to be copied into the session environment
 when a new session is created or an existing session is attached.
@@ -3052,10 +3121,13 @@ Supported window options are:
 Aggressively resize the chosen window.
 This means that
 .Nm
-will resize the window to the size of the smallest session for which it is the
+will resize the window to the size of the smallest or largest session
-current window, rather than the smallest session to which it is attached.
+(see the
-The window may resize when the current window is changed on another sessions;
+.Ic window-size
-this option is good for full-screen programs which support
+option) for which it is the current window, rather than the session to
+which it is attached.
+The window may resize when the current window is changed on another
+session; this option is good for full-screen programs which support
 .Dv SIGWINCH
 and poor for interactive programs such as shells.
 .Pp
@@ -3118,16 +3190,6 @@ Set clock colour.
 .Xc
 Set clock hour format.
 .Pp
-.It Ic force-height Ar height
-.It Ic force-width Ar width
-Prevent
-.Nm
-from resizing a window to greater than
-.Ar width
-or
-.Ar height .
-A value of zero restores the default unlimited setting.
-.Pp
 .It Ic main-pane-height Ar height
 .It Ic main-pane-width Ar width
 Set the width or height of the main (left or top) pane in the
@@ -3152,8 +3214,8 @@ Set window modes style.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .Pp
 .It Xo Ic monitor-activity
 .Op Ic on | off
@@ -3201,8 +3263,8 @@ Set the pane border style for the currently active pane.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 Attributes are ignored.
 .Pp
 .It Ic pane-base-index Ar index
@@ -3223,8 +3285,8 @@ Set the pane border style for panes aside from the active pane.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 Attributes are ignored.
 .Pp
 .It Xo Ic remain-on-exit
@@ -3247,24 +3309,24 @@ Set the style for the window's active pane.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .Pp
 .It Ic window-status-activity-style Ar style
 Set status line style for windows with an activity alert.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .Pp
 .It Ic window-status-bell-style Ar style
 Set status line style for windows with a bell alert.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .Pp
 .It Ic window-status-current-format Ar string
 Like
@@ -3276,24 +3338,24 @@ Set status line style for the currently active window.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .Pp
 .It Ic window-status-format Ar string
 Set the format in which the window is displayed in the status line window list.
 See the
-.Ar status-left
+.Sx FORMATS
-option for details of special character sequences available.
+and
-The default is
+.Sx STYLES
-.Ql #I:#W#F .
+sections.
 .Pp
 .It Ic window-status-last-style Ar style
 Set status line style for the last active window.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
 .Pp
 .It Ic window-status-separator Ar string
 Sets the separator drawn between windows in the status line.
@@ -3304,7 +3366,29 @@ Set status line style for a single window.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
+section.
+.Pp
+.It Xo Ic Ic window-size
+.Ar largest | Ar smallest | Ar manual
+.Xc
+Configure how
+.Nm
+determines the window size.
+If set to
+.Ar largest ,
+the size of the largest attached session is used; if
+.Ar smallest ,
+the size of the smallest.
+If
+.Ar manual ,
+the size of a new window is set from the
+.Ic default-size
+option and windows are resized automatically.
+See also the
+.Ic resize-window
+command and the
+.Ic aggressive-resize
 option.
 .Pp
 .It Ic window-style Ar style
@@ -3312,8 +3396,23 @@ Set the default window style.
 For how to specify
 .Ar style ,
 see the
-.Ic message-command-style
+.Sx STYLES
-option.
+section.
+.Pp
+.It Xo Ic window-size
+.Op Ic smallest | largest | manual
+.Xc
+Tell
+.Nm
+how to automatically size windows either the size of the smallest session
+containing the window, the size of the largest, or manual size.
+See also the
+.Ic resize-window
+command and the
+.Ic default-size
+and
+.Ic aggressive-resize
+options.
 .Pp
 .It Xo Ic wrap-search
 .Op Ic on | off
@@ -3424,6 +3523,14 @@ Run when the program running in a pane exits, but
 is on so the pane has not closed.
 .It pane-exited
 Run when the program running in a pane exits.
+.It pane-focus-in
+Run when the focus enters a pane, if the
+.Ic focus-events
+option is on.
+.It pane-focus-out
+Run when the focus exits a pane, if the
+.Ic focus-events
+option is on.
 .It pane-set-clipboard
 Run when the terminal clipboard is set using the
 .Xr xterm 1
@@ -3445,12 +3552,14 @@ Run when a window is unlinked from a session.
 Hooks are managed with these commands:
 .Bl -tag -width Ds
 .It Xo Ic set-hook
-.Op Fl gu
+.Op Fl gRu
 .Op Fl t Ar target-session
 .Ar hook-name
 .Ar command
 .Xc
-Sets (or with
+Without
+.Fl R ,
+sets (or with
 .Fl u
 unsets) hook
 .Ar hook-name
@@ -3466,6 +3575,12 @@ hooks (for
 with
 .Fl t ) .
 Like options, session hooks inherit from the global ones.
+.Pp
+With
+.Fl R ,
+run
+.Ar hook-name
+immediately.
 .It Xo Ic show-hooks
 .Op Fl g
 .Op Fl t Ar target-session
@@ -3482,13 +3597,16 @@ option is on (the default is off),
 allows mouse events to be bound as keys.
 The name of each key is made up of a mouse event (such as
 .Ql MouseUp1 )
-and a location suffix (one of
+and a location suffix, one of the following:
-.Ql Pane
+.Bl -column "XXXXXXXXXXXXX" -offset indent
-for the contents of a pane,
+.It Li "Pane" Ta "the contents of a pane"
-.Ql Border
+.It Li "Border" Ta "a pane border"
-for a pane border or
+.It Li "Status" Ta "the status line window list"
-.Ql Status
+.It Li "StatusLeft" Ta "the left part of the status line"
-for the status line).
+.It Li "StatusRight" Ta "the right part of the status line"
+.It Li "StatusDefault" Ta "any other part of the status line"
+.El
+.Pp
 The following mouse events are available:
 .Bl -column "MouseDown1" "MouseDrag1" "WheelDown" -offset indent
 .It Li "WheelUp" Ta "WheelDown" Ta ""
@@ -3545,11 +3663,17 @@ The possible variables are listed in the table below, or the name of a
 .Nm
 option may be used for an option's value.
 Some variables have a shorter alias such as
-.Ql #S ,
+.Ql #S ;
-and
 .Ql ##
 is replaced by a single
-.Ql # .
+.Ql # ,
+.Ql #,
+by a
+.Ql \&,
+and
+.Ql #}
+by a
+.Ql } .
 .Pp
 Conditionals are available by prefixing with
 .Ql \&?
@@ -3571,6 +3695,22 @@ if
 is enabled, or
 .Ql no
 if not.
+Conditionals can be nested arbitrarily.
+Inside a conditional,
+.Ql \&,
+and
+.Ql }
+must be escaped as
+.Ql #,
+and
+.Ql #} ,
+unless they are part of a
+.Ql #{...}
+replacement.
+For example:
+.Bd -literal -offset indent
+#{?pane_in_mode,#[fg=white#,bg=red],#[fg=red#,bg=white]}#W .
+.Ed
 .Pp
 Comparisons may be expressed by prefixing two comma-separated
 alternatives by
@@ -3598,7 +3738,7 @@ and
 .Ql &&
 evaluate to true if either or both of two comma-separated alternatives are
 true, for example
-.Ql #{||,#{pane_in_mode},#{alternate_on}} .
+.Ql #{||:#{pane_in_mode},#{alternate_on}} .
 A
 .Ql C
 performs a search for an
@@ -3634,6 +3774,35 @@ prefixes are
 and
 .Xr dirname 3
 of the variable respectively.
+.Ql q:
+will escape
+.Xr sh 1
+special characters.
+.Ql E:
+will expand the format twice, for example
+.Ql #{E:status-left}
+is the result of expanding the content of the
+.Ic status-left
+option rather than the content itself.
+.Ql T:
+is like
+.Ql E:
+but also expands
+.Xr strftime 3
+specifiers.
+.Ql S: ,
+.Ql W:
+or
+.Ql P:
+will loop over each session, window or pane and insert the format once
+for each.
+For windows and panes, two comma-separated formats may be given:
+the second is used for the current window or active pane.
+For example, to get a list of windows formatted like the status line:
+.Bd -literal -offset indent
+#{W:#{E:window-status-format} ,#{E:window-status-current-format} }
+.Ed
+.Pp
 A prefix of the form
 .Ql s/foo/bar/:
 will substitute
@@ -3694,6 +3863,7 @@ The following variables are available, where appropriate:
 .It Li "command_list_alias" Ta "" Ta "Command alias if listing commands"
 .It Li "command_list_usage" Ta "" Ta "Command usage if listing commands"
 .It Li "cursor_flag" Ta "" Ta "Pane cursor flag"
+.It Li "cursor_character" Ta "" Ta "Character at cursor in pane"
 .It Li "cursor_x" Ta "" Ta "Cursor X position in pane"
 .It Li "cursor_y" Ta "" Ta "Cursor Y position in pane"
 .It Li "history_bytes" Ta "" Ta "Number of bytes in window history"
@@ -3745,6 +3915,7 @@ The following variables are available, where appropriate:
 .It Li "pane_tty" Ta "" Ta "Pseudo terminal of pane"
 .It Li "pane_width" Ta "" Ta "Width of pane"
 .It Li "pid" Ta ""  Ta "Server PID"
+.It Li "rectangle_toggle" Ta "" Ta "1 if rectangle selection is activated"
 .It Li "scroll_region_lower" Ta "" Ta "Bottom of scroll region in pane"
 .It Li "scroll_region_upper" Ta "" Ta "Top of scroll region in pane"
 .It Li "scroll_position" Ta "" Ta "Scroll position in copy mode"
@@ -3759,12 +3930,10 @@ The following variables are available, where appropriate:
 .It Li "session_group_size" Ta "" Ta "Size of session group"
 .It Li "session_group_list" Ta "" Ta "List of sessions in group"
 .It Li "session_grouped" Ta "" Ta "1 if session in a group"
-.It Li "session_height" Ta "" Ta "Height of session"
 .It Li "session_id" Ta "" Ta "Unique session ID"
 .It Li "session_many_attached" Ta "" Ta "1 if multiple clients attached"
 .It Li "session_name" Ta "#S" Ta "Name of session"
 .It Li "session_stack" Ta "" Ta "Window indexes in most recent order"
-.It Li "session_width" Ta "" Ta "Width of session"
 .It Li "session_windows" Ta "" Ta "Number of windows in session"
 .It Li "socket_path" Ta "" Ta "Server socket path"
 .It Li "start_time" Ta "" Ta "Server start time"
@@ -3773,6 +3942,8 @@ The following variables are available, where appropriate:
 .It Li "window_activity_flag" Ta "" Ta "1 if window has activity"
 .It Li "window_active" Ta "" Ta "1 if window active"
 .It Li "window_bell_flag" Ta "" Ta "1 if window has bell"
+.It Li "window_bigger" Ta "" Ta "1 if window is larger than client"
+.It Li "window_end_flag" Ta "" Ta "1 if window has the highest index"
 .It Li "window_flags" Ta "#F" Ta "Window flags"
 .It Li "window_format" Ta "" Ta "1 if format is for a window (not assuming the current)"
 .It Li "window_height" Ta "" Ta "Height of window"
@@ -3782,14 +3953,137 @@ The following variables are available, where appropriate:
 .It Li "window_layout" Ta "" Ta "Window layout description, ignoring zoomed window panes"
 .It Li "window_linked" Ta "" Ta "1 if window is linked across sessions"
 .It Li "window_name" Ta "#W" Ta "Name of window"
+.It Li "window_offset_x" Ta "" Ta "X offset into window if larger than client"
+.It Li "window_offset_y" Ta "" Ta "Y offset into window if larger than client"
 .It Li "window_panes" Ta "" Ta "Number of panes in window"
 .It Li "window_silence_flag" Ta "" Ta "1 if window has silence alert"
 .It Li "window_stack_index" Ta "" Ta "Index in session most recent stack"
+.It Li "window_start_flag" Ta "" Ta "1 if window has the lowest index"
 .It Li "window_visible_layout" Ta "" Ta "Window layout description, respecting zoomed window panes"
 .It Li "window_width" Ta "" Ta "Width of window"
 .It Li "window_zoomed_flag" Ta "" Ta "1 if window is zoomed"
 .It Li "wrap_flag" Ta "" Ta "Pane wrap flag"
 .El
+.Sh STYLES
+.Nm
+offers various options to specify the colour and attributes of aspects of the
+interface, for example
+.Ic status-style
+for the status line.
+In addition, embedded styles may be specified in format options, such as
+.Ic status-left-format ,
+by enclosing them in
+.Ql #[
+and
+.Ql ] .
+.Pp
+A style may be the single term
+.Ql default
+to specify the default style (which may inherit from another option) or a space
+or comma separated list of the following:
+.Bl -tag -width Ds
+.It Ic fg=colour
+Set the foreground colour.
+The colour is one of:
+.Ic black ,
+.Ic red ,
+.Ic green ,
+.Ic yellow ,
+.Ic blue ,
+.Ic magenta ,
+.Ic cyan ,
+.Ic white ;
+if supported the bright variants
+.Ic brightred ,
+.Ic brightgreen ,
+.Ic brightyellow ;
+.Ic colour0
+to
+.Ic colour255
+from the 256-colour set;
+.Ic default
+for the default colour;
+.Ic terminal
+for the terminal default colour; or a hexadecimal RGB string such as
+.Ql #ffffff .
+.It Ic bg=colour
+Set the background colour.
+.It Ic none
+Set no attributes (turn off any active attributes).
+.It Xo Ic bright
+(or
+.Ic bold ) ,
+.Ic dim ,
+.Ic underscore ,
+.Ic blink ,
+.Ic reverse ,
+.Ic hidden ,
+.Ic italics ,
+.Ic strikethrough ,
+.Ic double-underscore ,
+.Ic curly-underscore ,
+.Ic dotted-underscore ,
+.Ic dashed-underscore
+.Xc
+Set an attribute.
+Any of the attributes may be prefixed with
+.Ql no
+to unset.
+.It Xo Ic align=left
+(or
+.Ic noalign ) ,
+.Ic align=centre ,
+.Ic align=right
+.Xc
+Align text to the left, centre or right of the available space if appropriate.
+.It Xo Ic list=on ,
+.Ic list=focus ,
+.Ic list=left-marker ,
+.Ic list=right=marker ,
+.Ic nolist
+.Xc
+Mark the position of the various window list components in the
+.Ic status-format
+option:
+.Ic list=on
+marks the start of the list;
+.Ic list=focus
+is the part of the list that should be kept in focus if the entire list won't fit
+in the available space (typically the current window);
+.Ic list=left-marker
+and
+.Ic list=right-marker
+mark the text to be used to mark that text has been trimmed from the left or
+right of the list if there is not enough space.
+.It Xo Ic range=left ,
+.Ic range=right ,
+.Ic range=window|X ,
+.Ic norange
+.Xc
+Mark a range in the
+. Ic status-format
+option.
+.Ic range=left
+and
+.Ic range=right
+are the text used for the
+.Ql StatusLeft
+and
+.Ql StatusRight
+mouse keys.
+.Ic range=window|X
+is the range for a window passed to the
+.Ql Status
+mouse key, where
+.Ql X
+is a window index.
+.El
+.Pp
+Examples are:
+.Bd -literal -offset indent
+fg=yellow bold underscore blink
+bg=black,fg=default,noreverse
+.Ed
 .Sh NAMES AND TITLES
 .Nm
 distinguishes between names and titles.
@@ -3826,7 +4120,9 @@ for
 or
 .Ic new-session ) .
 .It
-An escape sequence:
+An escape sequence (if the
+.Ic allow-rename
+option is turned on):
 .Bd -literal -offset indent
 $ printf '\e033kWINDOW_NAME\e033\e\e'
 .Ed
@@ -3839,7 +4135,7 @@ option.
 .El
 .Pp
 When a pane is first created, its title is the hostname.
-A pane's title can be set via the OSC title setting sequence, for example:
+A pane's title can be set via the title setting escape sequence, for example:
 .Bd -literal -offset indent
 $ printf '\e033]2;My Title\e033\e\e'
 .Ed
@@ -3915,15 +4211,20 @@ is used, the output is formatted as a set of Bourne shell commands.
 .Nm
 includes an optional status line which is displayed in the bottom line of each
 terminal.
-By default, the status line is enabled (it may be disabled with the
+.Pp
+By default, the status line is enabled and one line in height (it may be
+disabled or made multiple lines with the
 .Ic status
 session option) and contains, from left-to-right: the name of the current
 session in square brackets; the window list; the title of the active pane
 in double quotes; and the time and date.
 .Pp
-The status line is made of three parts: configurable left and right sections
+Each line of the status line is configured with the
-(which may contain dynamic content such as the time or output from a shell
+.Ic status-format
-command, see the
+option.
+The default is made of three parts: configurable left and right sections (which
+may contain dynamic content such as the time or output from a shell command,
+see the
 .Ic status-left ,
 .Ic status-left-length ,
 .Ic status-right ,
@@ -4068,7 +4369,7 @@ option.
 This command works only from inside
 .Nm .
 .It Xo Ic display-message
-.Op Fl p
+.Op Fl apv
 .Op Fl c Ar target-client
 .Op Fl t Ar target-pane
 .Op Ar message
@@ -4090,6 +4391,11 @@ if
 .Fl t
 is given, otherwise the active pane for the session attached to
 .Ar target-client .
+.Pp
+.Fl v
+prints verbose logging as the format is parsed and
+.Fl a
+lists the format variables and their values.
 .El
 .Sh BUFFERS
 .Nm
@@ -4354,8 +4660,6 @@ is used, the channel is locked and any clients that try to lock the same
 channel are made to wait until the channel is unlocked with
 .Ic wait-for
 .Fl U .
-This command only works from outside
-.Nm .
 .El
 .Sh TERMINFO EXTENSIONS
 .Nm
@@ -4372,6 +4676,11 @@ to change the cursor colour from inside
 .Bd -literal -offset indent
 $ printf '\e033]12;red\e033\e\e'
 .Ed
+.It Em \&Smulx
+Set a styled underline.
+The single parameter is one of: 0 for no underline, 1 for normal
+underline, 2 for double underline, 3 for curly underline, 4 for dotted
+underline and 5 for dashed underline.
 .It Em \&Ss , Se
 Set or reset the cursor style.
 If set, a sequence such as this may be used
@@ -4388,7 +4697,7 @@ Indicate that the terminal supports the
 .Ql direct colour
 RGB escape sequence (for example, \ee[38;2;255;255;255m).
 .Pp
-If supported, this is used for the OSC initialize colour escape sequence (which
+If supported, this is used for the initialize colour escape sequence (which
 may be enabled by adding the
 .Ql initc
 and

tmux.c

@@ -163,6 +163,31 @@ setblocking(int fd, int state)
 	}
 }
 
+const char *
+find_cwd(void)
+{
+	char		 resolved1[PATH_MAX], resolved2[PATH_MAX];
+	static char	 cwd[PATH_MAX];
+	const char	*pwd;
+
+	if (getcwd(cwd, sizeof cwd) == NULL)
+		return (NULL);
+	if ((pwd = getenv("PWD")) == NULL || *pwd == '\0')
+		return (cwd);
+
+	/*
+	 * We want to use PWD so that symbolic links are maintained,
+	 * but only if it matches the actual working directory.
+	 */
+	if (realpath(pwd, resolved1) == NULL)
+		return (cwd);
+	if (realpath(cwd, resolved2) == NULL)
+		return (cwd);
+	if (strcmp(resolved1, resolved2) != 0)
+		return (cwd);
+	return (pwd);
+}
+
 const char *
 find_home(void)
 {
@@ -188,7 +213,6 @@ int
 main(int argc, char **argv)
 {
 	char					*path, *label, *cause, **var;
-	char					 tmp[PATH_MAX];
 	const char				*s, *shell, *cwd;
 	int					 opt, flags, keys;
 	const struct options_table_entry	*oe;
@@ -293,8 +317,7 @@ main(int argc, char **argv)
 	global_environ = environ_create();
 	for (var = environ; *var != NULL; var++)
 		environ_put(global_environ, *var);
-	if ((cwd = getenv("PWD")) == NULL &&
+	if ((cwd = find_cwd()) != NULL)
-	    (cwd = getcwd(tmp, sizeof tmp)) != NULL)
 		environ_set(global_environ, "PWD", "%s", cwd);
 
 	global_options = options_create(NULL);