2.9 now.

Thomas Sattler.

CHANGES

@@ -1,4 +1,423 @@
-CHANGES FROM 2.3 to 2.4 20 April 2017
+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+  were superseded by -style options in tmux 1.9.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.
+
+* Fixes for hooks at server exit.
+
+* Remove SGR 10 (was equivalent to SGR 0 but no other terminal seems to do
+  this).
+
+* Expand formats in window and session names.
+
+* Add -Z flag to choose-tree, choose-client, choose-buffer to automatically
+  zoom the pane when the mode is entered and unzoom when it exits, assuming the
+  pane is not already zoomed. This is now part of the default key bindings.
+
+* Add C-g to exit modes with emacs keys.
+
+* Add exit-empty option to exit server if no sessions (defaults to on).
+
+* Show if a filter is present in choose modes.
+
+* Add pipe-pane -I to to connect stdin of the child process.
+
+* Performance improvements for reflow.
+
+* Use RGB terminfo(5) capability to detect RGB colour terminals (the existing
+  Tc extension remains unchanged).
+
+* Support for ISO colon-separated SGR sequences.
+
+* Add select-layout -E to spread panes out evenly (bound to E key).
+
+* Support wide characters properly when reflowing.
+
+* Pass PWD to new panes as a hint to shells, as well as calling chdir().
+
+* Performance improvements for the various choose modes.
+
+* Only show first member of session groups in tree mode (-G flag to choose-tree
+  to show all).
+
+* Support %else in config files to match %if; from Brad Town in GitHub issue
+  1071.
+
+* Fix "kind" terminfo(5) capability to be S-Down not S-Up.
+
+* Add a box around the preview label in tree mode.
+
+* Show exit status and time in the remain-on-exit pane text; from Timo
+  Boettcher in GitHub issue 1103.
+
+* Correctly use pane-base-index in tree mode.
+
+* Change the allow-rename option default to off.
+
+* Support for xterm(1) title stack escape sequences (GitHub issue 1075 from
+  Brad Town).
+
+* Correctly remove padding cells to fix a UTF-8 display problem (GitHub issue
+  1090).
+
+CHANGES FROM 2.5 TO 2.6, 05 October 2017
+
+* Add select-pane -T to set pane title.
+
+* Fix memory leak when lines with BCE are removed from history.
+
+* Fix (again) the "prefer unattached" behaviour of attach-session.
+
+* Reorder how keys are checked to allow keys to be specified that have a
+  leading escape. GitHub issue 1048.
+
+* Support REP escape sequence (\033[b).
+
+* Run alert hooks based on options rather than always, and allow further bells
+  even if there is an existing bell.
+
+* Add -d flag to display-panes to override display-panes-time.
+
+* Add selection_present format when in copy mode (allows key bindings that do
+  something different if there is a selection).
+
+* Add pane_at_left, pane_at_right, pane_at_top and pane_at_bottom formats.
+
+* Make bell, activity and silence alerting more consistent by: removing the
+  bell-on-alert option; adding activity-action and silence-action options with
+  the same possible values as the existing bell-action; adding a "both" value
+  for the visual-bell, visual-activity and visual-silence options to trigger
+  both a bell and a message.
+
+* Add a pane_pipe format to show if pipe-pane is active.
+
+* Block signals between forking and resetting signal handlers so that the
+  libevent signal handler doesn't get called in the child and incorrectly write
+  into the signal pipe that it still shares with the parent. GitHub issue 1001.
+
+* Allow punctuation in pane_current_command.
+
+* Add -c for respawn-pane and respawn-window.
+
+* Wait for any remaining data to flush when a pane is closed while pipe-pane is
+  in use.
+
+* Fix working out current client with no target. GitHub issue 995.
+
+* Try to fallback to C.UTF-8 as well as en_US.UTF-8 when looking for a UTF-8
+  locale.
+
+* Add user-keys option for user-defined key escape sequences (mapped to User0
+  to User999 keys).
+
+* Add pane-set-clipboard hook.
+
+* FAQ file has moved out of repository to online.
+
+* Fix problem with high CPU usage when a client dies unexpectedly. GitHub issue
+  941.
+
+* Do a dance on OS X 10.10 and above to return tmux to the user namespace,
+  allowing access to the clipboard.
+
+* Do not allow escape sequences which expect a specific terminator (APC, DSC,
+  OSC) to wait for forever - use a small timeout. This reduces the chance of
+  the pane locking up completely when sent garbage (cat /dev/random or
+  similar).
+
+* Support SIGUSR2 to toggle logging on a running server, also generate the
+  "out" log file with -vv not -vvvv.
+
+* Make set-clipboard a three state option: on (tmux both sends to outside
+  terminal and accepts from applications inside); external (tmux sends outside
+  but does not accept inside); and off.
+
+* Fix OSC 4 palette setting for bright foreground colours. GitHub issue 954.
+
+* Use setrgbf and setrgbb terminfo(5) capabilities to set RGB colours, if they
+  are available. (Tc is still supported as well.)
+
+* Fix redrawing panes when they are resized several times but end up with the
+  size unchanged (for example, splitw/resizep -Z/breakp).
+
+* Major rewrite of choose mode. Now includes preview, sorting, searching and
+  tagging; commands that can be executed directly from the mode (for example,
+  to delete one or more buffers); and filtering in tree mode.
+
+* choose-window and choose-session are now aliases of choose-tree (in the
+  command-alias option).
+
+* Support OSC 10 and OSC 11 to set foreground and background colours.
+
+* Check the U8 capability to determine whether to use UTF-8 line drawing
+  characters for ACS.
+
+* Some missing notifications for layout changes.
+
+* Control mode clients now do not affect session sizes until they issue
+  refresh-client -C. new-session -x and -y works with control clients even if
+  the session is not detached.
+
+* All new sessions that are unattached (whether with -d or started with no
+  terminal) are now created with size 80 x 24. Whether the status line is on or
+  off does not affect the size of new sessions until they are attached.
+
+* Expand formats in option names and add -F flag to expand them in option values.
+
+* Remember the search string for a pane even if copy mode is exited and entered
+  again.
+
+* Some further BCE fixes (scroll up, reverse index).
+
+* Improvements to how terminals are cleared (entirely or partially).
+
+CHANGES FROM 2.4 TO 2.5, 09 May 2017
+
+* Reset updated flag when restarting #() command so that new output is properly
+  recognised. GitHub issue 922.
+
+* Fix ECH with a background colour.
+
+* Do not rely on the terminal not moving the cursor after DL or EL.
+
+* Fix send-keys and send-prefix in copy-mode (so C-b C-b works). GitHub issue
+  905.
+
+* Set the current pane for rotate-window so it works in command sequences.
+
+* Add pane_mode format.
+
+* Differentiate M-Up from Escape+Up when possible (that is, in terminals with
+  xterm(1) style function keys). GitHub issue 907.
+
+* Add session_stack and window_stack_index formats.
+
+* Some new control mode notifications and corresponding hooks:
+  pane-mode-changed, window-pane-changed, client-session-changed,
+  session-window-changed.
+
+* Format pane_search_string for last search term while in copy mode (useful
+  with command-prompt -I).
+
+* Fix a problem with high CPU usage and multiple clients with #(). GitHub issue
+  889.
+
+* Fix UTF-8 combining characters in column 0.
+
+* Fix reference counting so that panes are properly destroyed and their
+  processes killed.
+
+* Clamp SU (CSI S) parameter to work around a bug in Konsole.
+
+* Tweak line wrapping in full width panes to play more nicely with terminal
+  copy and paste.
+
+* Fix when we emit SGR 0 in capture-pane -e.
+
+* Do not change TERM until after config file parsing has finished, so that
+  commands run inside the config file can use it to make decisions (typically
+  about default-terminal).
+
+* Make the initial client wait until config file parsing has finished to avoid
+  racing with commands.
+
+* Fix core when if-shell fails.
+
+* Only use ED to clear screen if the pane is at the bottom.
+
+* Fix multibyte UTF-8 output.
+
+* Code improvements around target (-t) resolution.
+
+* Change how the default target (for commands without -t) is managed across
+  command sequences: now it is set up at the start and commands are required
+  to update it if needed. Fixes binding command sequences to mouse keys.
+
+* Make if-shell from the config file work correctly.
+
+* Change to always check the root key table if no binding is found in the
+  current table (prefix table or copy-mode table or whatever). This means that
+  root key bindings will take effect even in copy mode, if not overridden by a
+  copy mode key binding.
+
+* Fix so that the history file works again.
+
+* Run config file without a client rather than using the first client, restores
+  previous behaviour.
+
+* If a #() command doesn't exit, continue to read from it and use its last full
+  line of output.
+
+* Handle slow terminals and fast output better: when the amount of data
+  outstanding gets too large, discard output until it is drained and we are
+  able to do a full redraw. Prevents tmux sitting on a huge buffer that the
+  terminal will take forever to consume.
+
+* Do not redraw a client unless we realistically think it can accept the data -
+  defer redraws until the client has nothing else waiting to write.
+
+CHANGES FROM 2.3 TO 2.4, 20 April 2017
 
 Incompatible Changes
 ====================
@@ -23,12 +442,12 @@ Incompatible Changes
     bind -Tcopy-mode C-Up send -X scroll-up
     bind -Tcopy-mode WheelUpPane send -N5 -X scroll-up
 
-  This changes allows the full command parser (including command sequences) and
+  These changes allows the full command parser (including command sequences) and
   command set to be used - for example, the normal command prompt with editing
   and history is now used for searching, jumping, and so on instead of a custom
   one. The default C-r binding is now:
 
-    bind -Tcopy-mode C-r command-prompt -p'search up' "send -X search-backward '%%'"
+    bind -Tcopy-mode C-r command-prompt -i -p'search up' "send -X search-backward-incremental '%%'"
 
   There are also some new commmands available with send -X, such as
   copy-pipe-and-cancel.
@@ -78,7 +497,7 @@ Normal Changes
   set -ag syntax should work without change).
 * There have been substantial performance improvements.
 
-CHANGES FROM 2.2 to 2.3 29 September 2016
+CHANGES FROM 2.2 TO 2.3, 29 September 2016
 
 Incompatible Changes
 ====================
@@ -99,7 +518,7 @@ Normal Changes
 * 'display-panes' can now accept a command to run, rather than always
   selecting the pane.
 
-CHANGES FROM 2.1 to 2.2 10 April 2016
+CHANGES FROM 2.1 TO 2.2, 10 April 2016
 
 Incompatible Changes
 ====================
@@ -164,8 +583,7 @@ Normal Changes
 * RGB (24bit) colour support.  The 'Tc' flag must be set in the external TERM
   entry (using terminal-overrides or a custom terminfo entry).
 
-
-CHANGES FROM 2.0 to 2.1 18 October 2015
+CHANGES FROM 2.0 TO 2.1, 18 October 2015
 
 Incompatible Changes
 ====================
@@ -216,7 +634,7 @@ Normal Changes
 * Copy mode is exited if the history is cleared whilst in copy-mode.
 * 'copy-mode' learned '-e' to exit copy-mode when scrolling to end.
 
-CHANGES FROM 1.9a to 2.0 6 March 2015
+CHANGES FROM 1.9a TO 2.0, 06 March 2015
 
 Incompatible Changes
 ====================
@@ -275,18 +693,18 @@ Normal Changes
 * 'split-window' and 'join-window' understand -b to create the pane to the left
   or above the target pane.
 
-CHANGES FROM 1.9 to 1.9a 22 February 2014
+CHANGES FROM 1.9 TO 1.9a, 22 February 2014
 
-NOTE:  This is a bug-fix release to address some important bugs which just
+NOTE: This is a bug-fix release to address some important bugs which just
 missed the 1.9 deadline, but were found afterwards.
 
 Normal Changes
 ==============
 
 * Fix crash due to uninitialized lastwp member of layout_cell
-* Fix -fg/-bg/-style with 256 colour terminals.  
+* Fix -fg/-bg/-style with 256 colour terminals.
 
-CHANGES FROM 1.8 to 1.9, 20 February 2014
+CHANGES FROM 1.8 TO 1.9, 20 February 2014
 
 NOTE:  This release has bumped the tmux protocol version.  It is therefore
 advised that the prior tmux server is restarted when this version of tmux is
@@ -341,7 +759,7 @@ Normal Changes
 * tmux now supports 256 colours running under fbterm.
 * Many bug fixes!
 
-CHANGES FROM 1.7 to 1.8, 26 March 2013
+CHANGES FROM 1.7 TO 1.8, 26 March 2013
 
 Incompatible Changes
 ====================
@@ -392,7 +810,7 @@ Normal Changes
 * Lots and lots of bug fixes, fixing memory-leaks, etc.
 * Various manpage improvements.
 
-CHANGES FROM 1.6 to 1.7, 13 October 2012
+CHANGES FROM 1.6 TO 1.7, 13 October 2012
 
 * tmux configuration files now support line-continuation with a "\" at the
   end of a line.
@@ -642,7 +1060,7 @@ CHANGES FROM 1.2 TO 1.3, 18 July 2010
 * Run job commands explicitly in the global environment (which can be modified
   with setenv -g), rather than with the environment tmux started with.
 * Use the machine's hostname as the default title, instead of an empty string.
-* Prevent double free if the window option remain-on-exit is set. 
+* Prevent double free if the window option remain-on-exit is set.
 * Key string conversions rewritten.
 * Mark zombie windows as dead in the choose-window list.
 * Tiled layout added.
@@ -744,7 +1162,7 @@ CHANGES FROM 1.0 TO 1.1, 05 November 2009
 * New lock-client (alias lockc), and lock-session (alias locks) commands to
   lock a particular client, or all clients attached to a session.
 * Support C-n/C-p/C-v/M-v with emacs keys in choice mode.
-* Use : for goto line rather than g in vi mode. 
+* Use : for goto line rather than g in vi mode.
 * Try to guess which client to use when no target client was specified. Finds
   the current session, and if only one client is present, use it. Otherwise,
   return the most recently used client.
@@ -783,7 +1201,7 @@ CHANGES FROM 1.0 TO 1.1, 05 November 2009
 * xterm-keys rewrite.
 * Additional code reduction, and bug fixes.
 
-CHANGES FROM 0.9 TO 1.0, 20 Sept 2009
+CHANGES FROM 0.9 TO 1.0, 20 September 2009
 
 * Option to alter the format of the window title set by tmux.
 * Backoff for a while after multiple incorrect password attempts.
@@ -875,7 +1293,7 @@ The list of older changes is below.
 
 * main-horizontal layout and main-pane-height option to match vertical.
 * New window option main-pane-width to set the width of the large left pane with
-  main-vertical (was left-vertical) layout. 
+  main-vertical (was left-vertical) layout.
 * Lots of layout cleanup. manual layout is now manual-vertical.
 
 16 May 2009

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
@@ -27,7 +27,7 @@ case before opening an issue.
 To run tmux without a config and get logs, run:
 
     tmux -Ltest kill-server
-    tmux -vvvv -Ltest -f/dev/null new
+    tmux -vv -Ltest -f/dev/null new
 
 Then reproduce the problem, exit tmux, and attach the tmux-server-*.log file
 from the current directory to the issue.

FAQ

@@ -1,462 +0,0 @@
-tmux frequently asked questions
-
-******************************************************************************
-* PLEASE NOTE: most display problems are due to incorrect TERM! Before       *
-* reporting problems make SURE that TERM settings are correct inside and     *
-* outside tmux.                                                              *
-*                                                                            *
-* Inside tmux TERM must be "screen" or similar (such as "screen-256color").  *
-* Don't bother reporting problems where it isn't!                            *
-*                                                                            *
-* Outside, it must match your terminal: particularly, use "rxvt" for rxvt    *
-* and derivatives.                                                           *
-******************************************************************************
-
-* How is tmux different from GNU screen?
-
-tmux and GNU screen have many similarities. Some of the main differences I am
-aware of are (bearing in mind I haven't used screen for a few years now):
-
-- tmux uses a client-server model. Each server has single Unix domain socket in
-  /tmp and within one server there are multiple sessions which may be attached
-  to multiple clients (terminals).
-
-  This has advantages, notably: windows may be linked simultaneously to
-  multiple sessions; windows may be moved freely between sessions; and a client
-  may be switched between sessions easily (C-b D). There is one major
-  disadvantage: if the server crashes, game over, all sessions die. In
-  practice, however, tmux is quite stable and gets more so as people report any
-  bugs they hit :-).
-
-  This model is different from screen, where typically each new screen instance
-  is independent. tmux supports the same behaviour by using multiple servers
-  with the -L option but it is not typically recommended.
-
-- Different command interfaces. One of the goals of tmux is that the shell
-  should be easily usable as a scripting language - almost all tmux commands
-  can be used from the shell and behave identically whether used from the
-  shell, from a key binding or from the command prompt. Personally I also find
-  tmux's command interface much more consistent and clearer, but this is
-  subjective.
-
-- tmux calls window names (what you see in the status line) "names", screen
-  calls them "titles".
-
-- tmux has a multiple paste buffers. Not a major one but comes in handy quite a
-  lot.
-
-- tmux supports automatically renaming windows to the running application
-  without gross hacks using escape sequences. Its even on by default.
-
-- tmux has a choice of vi or emacs key layouts. Again, not major, but I use
-  emacs so if tmux did support only one key set it would be emacs and then all
-  the vi users would get humpy. Key bindings may be completely reconfigured in
-  any case.
-
-- tmux has an option to limit the window size.
-
-- tmux has search in windows (C-b f).
-
-- The window split (pane) model is different. tmux has two objects, windows and
-  panes; screen has just windows. This difference has several implications:
-
-  * In screen you can have a window appear in several layouts, in tmux a pane
-  can only be in one window (fixing this is a big todo item but quite
-  invasive).
-
-  * tmux layouts are immutable and do not get changed unless you modify them.
-
-  * In tmux, all panes are closed when you kill a window.
-
-  * tmux panes do not have individual names, titles and so on.
-
-  I think tmux's model is much easier to manage and navigate within a window,
-  but breaking panes off from and joining them to windows is more clumsy.
-
-  tmux also has support for preset pane layouts.
-
-- tmux's status line syntax is more readable and easier to use. I think it'd be
-  hard for anyone to argue with this. tmux doesn't support running a command
-  constantly and always using the last line of its output, commands must be run
-  again each time.
-
-- tmux has modern, easily extended code. Again hard to argue screen is better
-  if you have looked at the code.
-
-- tmux depends on libevent. I don't see this as a disadvantage: libevent is
-  small and portable, and on modern systems with current package management
-  systems dependencies are not an issue. libevent brings advantages in code
-  simplicity and performance.
-
-- screen allows the window to be bigger than the terminal and can pan around
-  it. tmux limits the size to the largest attached client. This is a big todo
-  item for tmux but it is not trivial.
-
-- screen has builtin serial and telnet support; this is bloat and is unlikely
-  to be added to tmux.
-
-- Environment handling is different.
-
-- tmux tends to be more demanding on the terminal so tends to show up terminal
-  and application bugs which screen does not.
-
-- screen has wider platform support, for example IRIX, and for odd terminals.
-
-* I found a bug! What do I do?
-
-Check the latest version of tmux from Git to see if the problem is still
-reproducible.  Sometimes the length of time between releases means a lot of
-fixes can be sitting in Git and the problem might already be fixed.
-
-Please send bug reports by email to nicholas.marriott@gmail.com or
-tmux-users@googlegroups.com. Please include as much of the following
-information as possible:
-
-- the version of tmux you are running;
-- the operating system you are using and its version;
-- the terminal emulator you are using and the TERM setting when tmux was
-  started;
-- a description of the problem;
-- if the problem is repeatable, the steps to repeat the problem;
-- for screen corruption issues, a screenshot and the output of "infocmp $TERM"
-  from outside tmux are often very useful.
-
-* Why doesn't tmux do $x?
-
-Please send feature requests by email to tmux-users@googlegroups.com.
-
-* Why do you use the screen terminal description inside tmux? It sucks.
-
-It is already widely available. It is planned to change to something else such
-as xterm-xfree86 at some point, if possible.
-
-* I don't see any colour in my terminal! Help!
-
-On some platforms, common terminal descriptions such as xterm do not include
-colour. screen ignores this, tmux does not. If the terminal emulator in use
-supports colour, use a value for TERM which correctly lists this, such as
-xterm-color.
-
-* tmux freezes my terminal when I attach to a session. I even have to kill -9
-  the shell it was started from to recover!
-
-Some consoles really really don't like attempts to set the window title. Tell
-tmux not to do this by turning off the "set-titles" option (you can do this
-in .tmux.conf):
-
-     set -g set-titles off
-
-If this doesn't fix it, send a bug report.
-
-* Why is C-b the prefix key? How do I change it?
-
-The default key is C-b because the prototype of tmux was originally developed
-inside screen and C-b was chosen not to clash with the screen meta key. It
-also has the advantage of not interfering with the use of C-a for start-of-line
-in emacs and the shell (although it does interfere with previous-character).
-
-Changing is simple: change the "prefix-key" option, and - if required - move
-the binding of the "send-prefix" command from C-b (C-b C-b sends C-b by
-default) to the new key. For example:
-
-	set -g prefix C-a
-	unbind C-b
-	bind C-a send-prefix
-
-* How do I use UTF-8?
-
-When running tmux in a UTF-8 capable terminal, UTF-8 must be turned on in tmux;
-as of release 0.9, tmux attempts to autodetect a UTF-8-capable terminal by
-checking the LC_ALL, LC_CTYPE and LANG environment variables. list-clients may
-be used to check if this is detected correctly; if not, the -u command-line
-flag may be specified when creating or attaching a client to a tmux session:
-
-	$ tmux -u new
-
-Since the 1.0 release, tmux will turn on UTF-8 related options automatically
-(ie status-utf8, and utf8) if the above conditions are met.
-
-* How do I use a 256 colour terminal?
-
-Provided the underlying terminal supports 256 colours, it is usually sufficient
-to add the following to ~/.tmux.conf:
-
-	set -g default-terminal "screen-256color"
-
-Note that some platforms do not support "screen-256color" ("infocmp
-screen-256color" will return an error) - in this case see the next entry in
-this FAQ.
-
-tmux attempts to detect a 256 colour terminal both by looking at the colors
-terminfo entry and by looking for the string "256col" in the TERM environment
-variable.
-
-If both these methods fail, the -2 flag may be passed to tmux when attaching
-to a session to indicate the terminal supports 256 colours.
-
-* vim or $otherprogram doesn't display 256 colours. What's up?
-
-Some programs attempt to detect the number of colours a terminal is capable of
-by checking the colors terminfo or Co termcap entry. However, this is not
-reliable, and in any case is missing from the "screen" terminal description
-used inside tmux.
-
-There are two options (aside from using "screen-256color") to allow programs to
-recognise they are running on a 256-colour terminal inside tmux:
-
-- Manually force the application to use 256 colours always or if TERM is set to
-  screen. For vim, you can do this by overriding the t_Co option, see
-  http://vim.wikia.com/wiki/256_colors_in_vim.
-- Creating a custom terminfo file that includes colors#256 in ~/.terminfo and
-  using it instead. These may be compiled with tic(1).
-
-* How do I make Ctrl-PgUp and Ctrl-PgDn work in vim?
-
-tmux supports passing through ctrl (and where supported by the client terminal,
-alt and shift) modifiers to function keys using xterm(1)-style key sequences.
-This may be enabled per window, or globally with the tmux command:
-
-	setw -g xterm-keys on
-
-Because the TERM variable inside tmux must be set to "screen", vim will not
-automatically detect these keys are available; however, the appropriate key
-sequences can be overridden in .vimrc using the following:
-
-	if &term == "screen"
-	set t_kN=^[[6;*~
-	set t_kP=^[[5;*~
-	endif
-
-And similarly for any other keys for which modifiers are desired.
-
-Please note that the "xterm-keys" setting may affect other programs, in the
-same way as running them in a standard xterm; for example most shells do not
-expect to receive xterm(1)-style key sequences so this setting may prevent keys
-such as ctrl-left and ctrl-right working correctly. tmux also passes through
-the ctrl (bit 5 set, for example ^[[5~ to ^[[5^) modifier in non-xterm(1) mode;
-it may be possible to configure vim to accept these, an example of how to do so
-would be welcome.
-
-vim users may also want to set the "ttyfast" option inside tmux.
-
-* How do I make ctrl and shift arrow keys work in emacs?
-
-The terminal-init-screen function in term/screen.el is called for new frames,
-but it doesn't configure any function keys.
-
-If the tmux xterm-keys option is on, it is enough to define the same keys as
-xterm. Add the following to init.el or .emacs to do this:
-
-(defadvice terminal-init-screen
-  ;; The advice is named `tmux', and is run before `terminal-init-screen' runs.
-  (before tmux activate)
-  ;; Docstring.  This describes the advice and is made available inside emacs;
-  ;; for example when doing C-h f terminal-init-screen RET
-  "Apply xterm keymap, allowing use of keys passed through tmux."
-  ;; This is the elisp code that is run before `terminal-init-screen'.
-  (if (getenv "TMUX")
-    (let ((map (copy-keymap xterm-function-map)))
-    (set-keymap-parent map (keymap-parent input-decode-map))
-    (set-keymap-parent input-decode-map map))))
-
-And ensure .tmux.conf contains "set -g xterm-keys on".
-
-Alternatively, the screen.el file can be copied to the load path and
-customized.
-
-* Why doesn't elinks set the window title inside tmux?
-
-There isn't a way to detect if a terminal supports setting the window title, so
-elinks attempts to guess by looking at the environment. Rather than looking for
-TERM=screen, it uses the STY variable to detect if it is running in screen;
-tmux does not use this so the check fails. A workaround is to set STY before
-running elinks.
-
-The following shell function does this, and also clears the window title on
-exit (elinks, for some strange reason, sets it to the value of TERM):
-
-	elinks() {
-        	STY= `which elinks` $*
-	        echo -ne \\033]0\;\\007;
-	}
-
-* What is the proper way to escape characters with #(command)?
-
-When using the #(command) construction to include the output from a command in
-the status line, the command will be parsed twice. First, when it's read by the
-configuration file or the command-prompt parser, and second when the status
-line is being drawn and the command is passed to the shell. For example, to
-echo the string "(test)" to the status line, either single or double quotes
-could be used:
-
-	set -g status-right "#(echo \\\\(test\\\\))"
-	set -g status-right '#(echo \\\(test\\\))'
-
-In both cases, the status-right option will be set to the string "#(echo
-\\(test\\))" and the command executed will be "echo \(test\)".
-
-* tmux uses too much CPU. What do I do?
-
-Automatic window renaming may use a lot of CPU, particularly on slow computers:
-if this is a problem, turn it off with "setw -g automatic-rename off". If this
-doesn't fix it, please report the problem.
-
-* I use PuTTY and my tmux window pane separators are all qqqqqqqqq's! 
-
-PuTTY is using a character set translation that doesn't support ACS line
-drawing. With a Unicode font, try setting PuTTY to use a different translation
-on the Window -> Translation configuration page. For example, change UTF-8 to
-ISO-8859-1 or CP437. It may also be necessary to adjust the way PuTTY treats
-line drawing characters in the lower part of the same configuration page.
-
-* What is the best way to display the load average? Why no #L?
-
-It isn't possible to get the load average portably in code and it is preferable
-not to add portability goop. The following works on at least Linux, *BSD and OS
-X:
-
-uptime|awk '{split(substr($0, index($0, "load")), a, ":"); print a[2]}'
-
-* How do I attach the same session to multiple clients but with a different
-  current window, like screen -x?
-
-One or more of the windows can be linked into multiple sessions manually with
-link-window, or a grouped session with all the windows can be created with
-new-session -t.
-
-* Ctrl and arrow keys doesn't work in putty! What do I do?
-
-putty inverts the sense of the cursor key mode on ctrl, which is a bit hard for
-tmux to detect properly. To get ctrl keys right, change the terminfo settings
-so kUP5 (Ctrl-Up etc) are the adjusted versions, and disable smkx/rmkx so tmux
-doesn't change the mode. For example with this line in .tmux.conf (assuming you
-have TERM set to xterm):
-
-set -g terminal-overrides "xterm*:kLFT5=\eOD:kRIT5=\eOC:kUP5=\eOA:kDN5=\eOB:smkx@:rmkx@"
-
-Note that this will only work in tmux 1.2 and above.
-
-* How can I blank the tmux window?
-
-GNU screen has a feature whereby it will blank the screen after a period of
-inactivity. To do the same thing in tmux, use the lock-command setting, for
-example (with GNU bash):
-
-set -g lock-command 'tput civis && read -s -n1'
-
-This will remove the cursor and tell the shell to quit once a key has been
-pressed. For zsh, use "read -s -k1".
-
-In addition, it's possible to have both blanking and locking (for instance via
-lock(1) or vlock(1)) by using the following:
-
-bind x set lock-command '/usr/bin/vlock' \; lock-client \; set lock-command 'tput civis && read -s -n1'
-
-* I don't see italics! Or less and vim show italics and reverse the wrong way round!
-
-GNU screen does not support italics and the "screen" terminfo description uses
-the italics escape sequence incorrectly.
-
-As of tmux 2.1, if default-terminal is set to "screen" or matches "screen-*",
-tmux will behave like screen and italics will be disabled.
-
-To enable italics, create a new terminfo entry called "tmux" (some platforms
-may already have this, you can check with "infocmp tmux"):
-
-	$ cat <<EOF|tic -x -
-	tmux|tmux terminal multiplexer,
-		ritm=\E[23m, rmso=\E[27m, sitm=\E[3m, smso=\E[7m, Ms@,
-		use=xterm+tmux, use=screen,
-
-	tmux-256color|tmux with 256 colors,
-		use=xterm+256setaf, use=tmux,
-	EOF
-	$
-
-And tell tmux to use it in ~/.tmux.conf:
-	
-	set -g default-terminal "tmux"
-
-If using urxvt, make sure you have an italics capable font enabled. for
-example, add to ~/.Xdefaults:
-
-	urxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
-
-* How can I make tmux use my terminal's scrollback buffer?
-
-Normally, tmux enables the terminal's "alternate screen". Most terminals (such
-as xterm) do not save scrollback for the alternate screen. You might prefer
-tmux to use the normal screen, so it uses your terminal's scrollback
-buffer. This way, you can access the scrollback buffer as usual, for example
-using the mouse wheel - although there is no guarantee output inside tmux will
-always (or ever) be added to the scrollback.
-
-You can make tmux use the normal screen by telling it that your terminal does
-not have an alternate screen. Put the following in ~/.tmux.conf:
-
-        set -ga terminal-overrides ',xterm*:smcup@:rmcup@'
-
-Adjust if your $TERM does not start with xterm.
-
-tmux will still emulate the alternate screen for applications run under tmux,
-so you don't really lose anything with this setting. The only disadvantage is
-that when you exit tmux, it will not restore whatever was there before you
-started.
-
-* How do I see the default configuration?
-
-Show the default session options by starting a new tmux server with no
-configuration file:
-
-        $ tmux -Lfoo -f/dev/null start\; show -g
-
-Or the default window options:
-
-        $ tmux -Lfoo -f/dev/null start\; show -gw
-
-* How do I copy a selection from tmux to the system's clipboard?
-
-When running in xterm(1), tmux can automatically send copied text to the
-clipboard. This is controlled by the set-clipboard option and also needs this
-X resource to be set:
-
-	XTerm*disallowedWindowOps: 20,21,SetXprop
-
-For rxvt-unicode (urxvt), there is an unofficial Perl extension here:
-
-        http://anti.teamidiot.de/static/nei/*/Code/urxvt/
-
-Otherwise a key binding for copy mode using xclip (or xsel) works:
-
-	bind -temacs-copy C-y copy-pipe "xclip -i >/dev/null"
-
-Or for inside and outside copy mode with the prefix key:
-
-        bind C-y run -b "tmux save-buffer - | xclip -i"
-
-On OS X, look at the pbcopy(1) and pbpaste(1) commands.
-
-* Why don't some commands work inside tmux on OS X?
-
-Apple requires some undocumented, unsupported fiddling to allow commands that
-interact with the GUI to work. Neither tmux itself nor most shells do this, so
-an external program is required. This can be found here:
-
-        https://github.com/ChrisJohnsen/tmux-MacOSX-pasteboard
-
-Affected commands may include say(1), pbcopy(1), pbpaste(1) and ssh(1).
-
-* Why do I see dots around a session when I attach to it?
-
-tmux limits the size of the window to the smallest attached session. If
-it didn't do this then it would be impossible to see the entire window.
-The dots mark the size of the window tmux can display.
-
-To avoid this, detach all other clients when attaching:
-
-	$ tmux attach -d
-
-Or from inside tmux by detaching individual clients with C-b D or all
-using:
-
-	C-b : attach -d

Makefile.am

@@ -6,10 +6,8 @@ CLEANFILES = tmux.1.mdoc tmux.1.man
 
 # Distribution tarball options.
 EXTRA_DIST = \
-	CHANGES FAQ README TODO COPYING example_tmux.conf compat/*.[ch] \
+	CHANGES README README.ja COPYING example_tmux.conf compat/*.[ch] \
 	osdep-*.c mdoc2man.awk tmux.1
-dist-hook:
-	grep "^#enable_debug=" configure
 
 # Preprocessor flags.
 AM_CPPFLAGS += @XOPEN_DEFINES@ -DTMUX_CONF="\"$(sysconfdir)/tmux.conf\""
@@ -68,8 +66,6 @@ dist_tmux_SOURCES = \
 	cmd-bind-key.c \
 	cmd-break-pane.c \
 	cmd-capture-pane.c \
-	cmd-choose-buffer.c \
-	cmd-choose-client.c \
 	cmd-choose-tree.c \
 	cmd-command-prompt.c \
 	cmd-confirm-before.c \
@@ -104,6 +100,7 @@ dist_tmux_SOURCES = \
 	cmd-rename-session.c \
 	cmd-rename-window.c \
 	cmd-resize-pane.c \
+	cmd-resize-window.c \
 	cmd-respawn-pane.c \
 	cmd-respawn-window.c \
 	cmd-rotate-window.c \
@@ -135,6 +132,7 @@ dist_tmux_SOURCES = \
 	control.c \
 	environ.c \
 	format.c \
+	format-draw.c \
 	grid-view.c \
 	grid.c \
 	hooks.c \
@@ -147,13 +145,13 @@ dist_tmux_SOURCES = \
 	layout-set.c \
 	layout.c \
 	log.c \
+	mode-tree.c \
 	names.c \
 	notify.c \
 	options-table.c \
 	options.c \
 	paste.c \
 	proc.c \
-	pty.c \
 	resize.c \
 	screen-redraw.c \
 	screen-write.c \
@@ -162,7 +160,6 @@ dist_tmux_SOURCES = \
 	server-fn.c \
 	server.c \
 	session.c \
-	signal.c \
 	status.c \
 	style.c \
 	tmux.c \
@@ -172,9 +169,11 @@ dist_tmux_SOURCES = \
 	tty-term.c \
 	tty.c \
 	utf8.c \
-	window-choose.c \
+	window-buffer.c \
+	window-client.c \
 	window-clock.c \
 	window-copy.c \
+	window-tree.c \
 	window.c \
 	xmalloc.c \
 	xmalloc.h \
@@ -198,7 +197,7 @@ install-exec-hook:
 			>$(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)
-to be accessed and controlled from a single terminal. tmux is intended to be a
-simple, modern, BSD-licensed alternative to programs such as GNU screen.
+tmux is a terminal multiplexer: it enables a number of terminals to be created,
+accessed, and controlled from a single screen. tmux may be detached from a
+screen and continue running in the background, then later reattached.
 
 This release runs on OpenBSD, FreeBSD, NetBSD, Linux, OS X and Solaris.
 
@@ -29,21 +29,19 @@ To get and build the latest from version control:
 	$ sh autogen.sh
 	$ ./configure && make
 
+(Note that this requires at least a working C compiler, make, autoconf,
+automake, pkg-config as well as libevent and ncurses libraries and headers.)
+
 For more information see http://git-scm.com. Patches should be sent by email to
-the mailing list at tmux-users@googlegroups.com.
+the mailing list at tmux-users@googlegroups.com or submitted through GitHub at
+https://github.com/tmux/tmux/issues.
 
 For documentation on using tmux, see the tmux.1 manpage. It can be viewed from
 the source tree with:
 
 	$ nroff -mdoc tmux.1|less
 
-Some common questions are answered in the FAQ file, a rough todo list is in the
-TODO file and an example configuration in example_tmux.conf.
-
-A vim(1) syntax file is available at:
-
-	https://github.com/ericpruitt/tmux.vim
-	https://raw.githubusercontent.com/ericpruitt/tmux.vim/master/vim/syntax/tmux.vim
+A small example configuration in example_tmux.conf.
 
 And a bash(1) completion file at:
 

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>

SYNCING

@@ -140,15 +140,13 @@ to compat/ as and when appropriate.
 Release tmux for next version
 =============================
 
-1. Comment the "enable_debug=yes" line in configure.ac, since releases
-   don't have debugging enabled, otherwise make(1) aborts when
-   preparing the distribution.
-
-2. Update and commit README and CHANGES.  The former should be checked for
+1. Update and commit README and CHANGES.  The former should be checked for
    anything outdated and updated with a list of things that might break
    upgrades and the latter should mention all the major changes since
    the last version.
 
+2. Make sure configure.ac has the new version number.
+
 3. Tag with:
 
    % git tag -a 2.X
@@ -157,7 +155,7 @@ Release tmux for next version
 
    Push the tag out with:
 
-   % git push 2.X
+   % git push --tags
 
 4. Build the tarball with 'make dist'.
 
@@ -168,9 +166,8 @@ Release tmux for next version
    Click the "Add release notes", upload the tarball and add a link in the
    description field to the CHANGES file.
 
-7. Clone the tmux.github.io repository, and change the RELEASE version in
-   the Makefile.  Commit it, and run 'make' to replace %%VERSION%%.  Push
-   the result out.
+6. Clone the tmux.github.io repository, and change the RELEASE version in the
+   Makefile.  Commit it, and run 'make' to replace %%RELEASE%%.  Push the
+   result out.
 
-8. Bump version in tmux/tmux.git configure.ac and uncomment "enable_debug=yes" to
-   create a debug build by default.
+7. Change version back to master in configure.ac.

TODO

@@ -1,7 +1,6 @@
 - command bits and pieces:
 	* allow multiple targets: fnmatch for -t/-c, for example detach all
 	  clients with -t*
-	* add -c for new-session like new-window
 	* ' and " should be parsed the same (eg "\e" vs '\e') in config
 	  and command prompt
 	* last-pane across sessions
@@ -17,19 +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?
-
-- choose mode improvements:
-	* choose-pane command (augment choose-tree to do this?)
-	* flag to choose-* for sort order
-	* two choices (first one then second, for swap-pane and join-pane)
-	* choose modes should ditch the key bindings and just have fixed keys, and
-	  be more customized to their purpose (d to delete a buffer for choose-buffer,
-	  a preview of buffer contents, etc)
+	* comparison operators like < and > (for #{version}?)
 
 - improve monitor-*:
 	* straighten out rules for multiple clients
@@ -38,7 +29,7 @@
 	* perhaps monitor /all/ panes in the window not just one
 
 - improve mouse support:
-	* bind commands to mouse in different areas? 
+	* bind commands to mouse in different areas?
 	* commands executed when clicking on a pattern (URL)
 
 - warts on current naming:
@@ -53,8 +44,15 @@
 	  then it should be found even if it is now "foo\nbar" (if the WRAP flag
 	  is set on the line)
 	* capture-pane option to preserve spaces but not join lines
-	* improve word and line selection in copy mode (for example when dragging
-	  it should select by word. compare how xterm works. GitHub issue 682)
+	* improve word and line selection in copy mode (for example when
+	  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
@@ -66,10 +64,11 @@
 	  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
+	* way to choose where the freed space goes when a pane is killed:
+	  option to kill-pane? GitHub issue 918
 
 - code cleanup
 	* instead of separate window and session options, just one master
@@ -100,7 +99,6 @@
 	  client w/o a session else cmd_current_client
 
 - miscellaneous
-	* way to keep a job running just read its last line of output for #()
 	* link panes into multiple windows
 	* live update: server started with -U connects to server, requests
 	  sessions and windows, receives file descriptors
@@ -113,10 +111,51 @@
 	* 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
+	* 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
-	* finish after hooks for special commands
+	* finish after hooks for special commands. these do not have a hook at
+	  the moment:
+		 attach-session detach-client kill-server respawn-window
+		 swap-window break-pane find-window kill-session rotate-window
+		 switch-client choose-tree if-shell kill-window run-shell
+		 wait-for command-prompt join-pane move-window source-file
+		 confirm-before kill-pane respawn-pane swap-pane
+	  at the moment AFTERHOOK uses current only if target is not valid,
+	  but target is ALWAYS valid - it should use current if no -t flag?
+	  then select-* could use AFTERHOOK
 	* multiple hooks with the same name?
 	* finish hooks for notifys
-	* for session_closed, if no sessions at all, perhaps fake up a temporary one
+	* 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.

alerts.c

@@ -30,13 +30,13 @@ static int	alerts_enabled(struct window *, int);
 static void	alerts_callback(int, short, void *);
 static void	alerts_reset(struct window *);
 
+static int	alerts_action_applies(struct winlink *, const char *);
 static int	alerts_check_all(struct window *);
 static int	alerts_check_bell(struct window *);
 static int	alerts_check_activity(struct window *);
 static int	alerts_check_silence(struct window *);
-static void printflike(2, 3) alerts_set_message(struct session *, const char *,
-		    ...);
-static void	alerts_ring_bell(struct session *);
+static void	alerts_set_message(struct winlink *, const char *,
+		    const char *);
 
 static TAILQ_HEAD(, window) alerts_list = TAILQ_HEAD_INITIALIZER(alerts_list);
 
@@ -46,7 +46,6 @@ alerts_timer(__unused int fd, __unused short events, void *arg)
 	struct window	*w = arg;
 
 	log_debug("@%u alerts timer expired", w->id);
-	alerts_reset(w);
 	alerts_queue(w, WINDOW_SILENCE);
 }
 
@@ -64,17 +63,38 @@ alerts_callback(__unused int fd, __unused short events, __unused void *arg)
 		TAILQ_REMOVE(&alerts_list, w, alerts_entry);
 
 		w->flags &= ~WINDOW_ALERTFLAGS;
-		window_remove_ref(w);
+		window_remove_ref(w, __func__);
 	}
 	alerts_fired = 0;
 }
 
+static int
+alerts_action_applies(struct winlink *wl, const char *name)
+{
+	int	action;
+
+	/*
+	 * {bell,activity,silence}-action determines when to alert: none means
+	 * nothing happens, current means only do something for the current
+	 * window and other means only for windows other than the current.
+	 */
+
+	action = options_get_number(wl->session->options, name);
+	if (action == ALERT_ANY)
+		return (1);
+	if (action == ALERT_CURRENT)
+		return (wl == wl->session->curw);
+	if (action == ALERT_OTHER)
+		return (wl != wl->session->curw);
+	return (0);
+}
+
 static int
 alerts_check_all(struct window *w)
 {
 	int	alerts;
 
-	alerts  = alerts_check_bell(w);
+	alerts	= alerts_check_bell(w);
 	alerts |= alerts_check_activity(w);
 	alerts |= alerts_check_silence(w);
 	return (alerts);
@@ -92,8 +112,10 @@ alerts_check_session(struct session *s)
 static int
 alerts_enabled(struct window *w, int flags)
 {
-	if (flags & WINDOW_BELL)
-		return (1);
+	if (flags & WINDOW_BELL) {
+		if (options_get_number(w->options, "monitor-bell"))
+			return (1);
+	}
 	if (flags & WINDOW_ACTIVITY) {
 		if (options_get_number(w->options, "monitor-activity"))
 			return (1);
@@ -119,6 +141,9 @@ alerts_reset(struct window *w)
 {
 	struct timeval	tv;
 
+	if (!event_initialized(&w->alerts_timer))
+		evtimer_set(&w->alerts_timer, alerts_timer, w);
+
 	w->flags &= ~WINDOW_SILENCE;
 	event_del(&w->alerts_timer);
 
@@ -133,85 +158,61 @@ alerts_reset(struct window *w)
 void
 alerts_queue(struct window *w, int flags)
 {
-	if (w->flags & WINDOW_ACTIVITY)
-		alerts_reset(w);
-
-	if (!event_initialized(&w->alerts_timer))
-		evtimer_set(&w->alerts_timer, alerts_timer, w);
+	alerts_reset(w);
 
 	if ((w->flags & flags) != flags) {
 		w->flags |= flags;
 		log_debug("@%u alerts flags added %#x", w->id, flags);
 	}
 
-	if (!w->alerts_queued) {
-		w->alerts_queued = 1;
-		TAILQ_INSERT_TAIL(&alerts_list, w, alerts_entry);
-		w->references++;
-	}
+	if (alerts_enabled(w, flags)) {
+		if (!w->alerts_queued) {
+			w->alerts_queued = 1;
+			TAILQ_INSERT_TAIL(&alerts_list, w, alerts_entry);
+			window_add_ref(w, __func__);
+		}
 
-	if (!alerts_fired && alerts_enabled(w, flags)) {
-		log_debug("alerts check queued (by @%u)", w->id);
-		event_once(-1, EV_TIMEOUT, alerts_callback, NULL, NULL);
-		alerts_fired = 1;
+		if (!alerts_fired) {
+			log_debug("alerts check queued (by @%u)", w->id);
+			event_once(-1, EV_TIMEOUT, alerts_callback, NULL, NULL);
+			alerts_fired = 1;
+		}
 	}
 }
 
 static int
 alerts_check_bell(struct window *w)
 {
-	struct window	*ws;
 	struct winlink	*wl;
 	struct session	*s;
-	struct client	*c;
-	int		 action, visual;
 
 	if (~w->flags & WINDOW_BELL)
 		return (0);
+	if (!options_get_number(w->options, "monitor-bell"))
+		return (0);
 
 	TAILQ_FOREACH(wl, &w->winlinks, wentry)
 		wl->session->flags &= ~SESSION_ALERTED;
 
 	TAILQ_FOREACH(wl, &w->winlinks, wentry) {
-		if (wl->flags & WINLINK_BELL)
-			continue;
+		/*
+		 * Bells are allowed even if there is an existing bell (so do
+		 * not check WINLINK_BELL).
+		 */
 		s = wl->session;
 		if (s->curw != wl) {
 			wl->flags |= WINLINK_BELL;
-			notify_winlink("alert-bell", s, wl);
+			server_status_session(s);
 		}
+		if (!alerts_action_applies(wl, "bell-action"))
+			continue;
+		notify_winlink("alert-bell", wl);
 
 		if (s->flags & SESSION_ALERTED)
 			continue;
 		s->flags |= SESSION_ALERTED;
 
-		action = options_get_number(s->options, "bell-action");
-		if (action == BELL_NONE)
-			return (0);
-
-		visual = options_get_number(s->options, "visual-bell");
-		TAILQ_FOREACH(c, &clients, entry) {
-			if (c->session != s || c->flags & CLIENT_CONTROL)
-				continue;
-			ws = c->session->curw->window;
-
-			if (action == BELL_CURRENT && ws != w)
-				action = BELL_NONE;
-			if (action == BELL_OTHER && ws != w)
-				action = BELL_NONE;
-
-			if (!visual) {
-				if (action != BELL_NONE)
-					tty_putcode(&c->tty, TTYC_BEL);
-				continue;
-			}
-			if (action == BELL_CURRENT)
-				status_message_set(c, "Bell in current window");
-			else if (action != BELL_NONE) {
-				status_message_set(c, "Bell in window %d",
-				    wl->idx);
-			}
-		}
+		alerts_set_message(wl, "Bell", "visual-bell");
 	}
 
 	return (WINDOW_BELL);
@@ -235,20 +236,19 @@ alerts_check_activity(struct window *w)
 		if (wl->flags & WINLINK_ACTIVITY)
 			continue;
 		s = wl->session;
-		if (s->curw == wl)
+		if (s->curw != wl) {
+			wl->flags |= WINLINK_ACTIVITY;
+			server_status_session(s);
+		}
+		if (!alerts_action_applies(wl, "activity-action"))
 			continue;
-
-		wl->flags |= WINLINK_ACTIVITY;
-		notify_winlink("alert-activity", s, wl);
+		notify_winlink("alert-activity", wl);
 
 		if (s->flags & SESSION_ALERTED)
 			continue;
 		s->flags |= SESSION_ALERTED;
 
-		if (options_get_number(s->options, "bell-on-alert"))
-			alerts_ring_bell(s);
-		if (options_get_number(s->options, "visual-activity"))
-			alerts_set_message(s, "Activity in window %d", wl->idx);
+		alerts_set_message(wl, "Activity", "visual-activity");
 	}
 
 	return (WINDOW_ACTIVITY);
@@ -262,7 +262,7 @@ alerts_check_silence(struct window *w)
 
 	if (~w->flags & WINDOW_SILENCE)
 		return (0);
-	if (!options_get_number(w->options, "monitor-silence"))
+	if (options_get_number(w->options, "monitor-silence") == 0)
 		return (0);
 
 	TAILQ_FOREACH(wl, &w->winlinks, wentry)
@@ -272,51 +272,52 @@ alerts_check_silence(struct window *w)
 		if (wl->flags & WINLINK_SILENCE)
 			continue;
 		s = wl->session;
-		if (s->curw == wl)
+		if (s->curw != wl) {
+			wl->flags |= WINLINK_SILENCE;
+			server_status_session(s);
+		}
+		if (!alerts_action_applies(wl, "silence-action"))
 			continue;
-		wl->flags |= WINLINK_SILENCE;
-		notify_winlink("alert-silence", s, wl);
+		notify_winlink("alert-silence", wl);
 
 		if (s->flags & SESSION_ALERTED)
 			continue;
 		s->flags |= SESSION_ALERTED;
 
-		if (options_get_number(s->options, "bell-on-alert"))
-			alerts_ring_bell(s);
-
-		if (!options_get_number(s->options, "visual-silence"))
-			alerts_set_message(s, "Silence in window %d", wl->idx);
+		alerts_set_message(wl, "Silence", "visual-silence");
 	}
 
 	return (WINDOW_SILENCE);
 }
 
 static void
-alerts_set_message(struct session *s, const char *fmt, ...)
+alerts_set_message(struct winlink *wl, const char *type, const char *option)
 {
 	struct client	*c;
-	va_list		 ap;
-	char		*message;
+	int		 visual;
 
-	va_start(ap, fmt);
-	xvasprintf(&message, fmt, ap);
-	va_end(ap);
+	/*
+	 * We have found an alert (bell, activity or silence), so we need to
+	 * pass it on to the user. For each client attached to this session,
+	 * decide whether a bell, message or both is needed.
+	 *
+	 * If visual-{bell,activity,silence} is on, then a message is
+	 * substituted for a bell; if it is off, a bell is sent as normal; both
+	 * mean both a bell and message is sent.
+	 */
 
+	visual = options_get_number(wl->session->options, option);
 	TAILQ_FOREACH(c, &clients, entry) {
-		if (c->session == s)
-			status_message_set(c, "%s", message);
-	}
+		if (c->session != wl->session || c->flags & CLIENT_CONTROL)
+			continue;
 
-	free(message);
-}
-
-static void
-alerts_ring_bell(struct session *s)
-{
-	struct client	*c;
-
-	TAILQ_FOREACH(c, &clients, entry) {
-		if (c->session == s && !(c->flags & CLIENT_CONTROL))
+		if (visual == VISUAL_OFF || visual == VISUAL_BOTH)
 			tty_putcode(&c->tty, TTYC_BEL);
+		if (visual == VISUAL_OFF)
+			continue;
+		if (c->session->curw == wl)
+			status_message_set(c, "%s in current window", type);
+		else
+			status_message_set(c, "%s in window %d", type, wl->idx);
 	}
 }

arguments.c

@@ -34,7 +34,6 @@ struct args_entry {
 	RB_ENTRY(args_entry)	 entry;
 };
 
-static void			 args_set(struct args *, u_char, const char *);
 static struct args_entry	*args_find(struct args *, u_char);
 
 static int	args_cmp(struct args_entry *, struct args_entry *);
@@ -191,11 +190,11 @@ args_print(struct args *args)
 int
 args_has(struct args *args, u_char ch)
 {
-	return (args_find(args, ch) == NULL ? 0 : 1);
+	return (args_find(args, ch) != NULL);
 }
 
 /* Set argument value in the arguments tree. */
-static void
+void
 args_set(struct args *args, u_char ch, const char *value)
 {
 	struct args_entry	*entry;

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) ||
-		    (end == 4 && strncasecmp(str, "bold", end) == 0))
-			attr |= GRID_ATTR_BRIGHT;
-		else if (end == 3 && strncasecmp(str, "dim", end) == 0)
-			attr |= GRID_ATTR_DIM;
-		else if (end == 10 && strncasecmp(str, "underscore", end) == 0)
-			attr |= GRID_ATTR_UNDERSCORE;
-		else if (end == 5 && strncasecmp(str, "blink", end) == 0)
-			attr |= GRID_ATTR_BLINK;
-		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
+		for (i = 0; i < nitems(table); i++) {
+			if (end != strlen(table[i].name))
+				continue;
+			if (strncasecmp(str, table[i].name, end) == 0) {
+				attr |= table[i].attr;
+				break;
+			}
+		}
+		if (i == nitems(table))
 			return (-1);
 		str += end + strspn(str + end, delimiters);
 	} while (*str != '\0');

cfg.c

@@ -23,15 +23,34 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 
 #include "tmux.h"
 
-static char	 *cfg_file;
-int		  cfg_finished;
-static char	**cfg_causes;
-static u_int	  cfg_ncauses;
-struct client	 *cfg_client;
+/* Condition for %if, %elif, %else and %endif. */
+struct cfg_cond {
+	size_t			line;		/* line number of %if */
+	int			met;		/* condition was met */
+	int			skip;		/* skip later %elif/%else */
+	int			saw_else;	/* saw a %else */
+
+	TAILQ_ENTRY(cfg_cond)	entry;
+};
+TAILQ_HEAD(cfg_conds, cfg_cond);
+
+struct client		 *cfg_client;
+static char		 *cfg_file;
+int			  cfg_finished;
+static char		**cfg_causes;
+static u_int		  cfg_ncauses;
+static struct cmdq_item	 *cfg_item;
+
+static enum cmd_retval
+cfg_client_done(__unused struct cmdq_item *item, __unused void *data)
+{
+	if (!cfg_finished)
+		return (CMD_RETURN_WAIT);
+	return (CMD_RETURN_NORMAL);
+}
 
 static enum cmd_retval
 cfg_done(__unused struct cmdq_item *item, __unused void *data)
@@ -43,8 +62,11 @@ cfg_done(__unused struct cmdq_item *item, __unused void *data)
 	if (!RB_EMPTY(&sessions))
 		cfg_show_causes(RB_MIN(sessions, &sessions));
 
-	if (cfg_client != NULL)
-		server_client_unref(cfg_client);
+	if (cfg_item != NULL)
+		cfg_item->flags &= ~CMDQ_WAITING;
+
+	status_prompt_load_history();
+
 	return (CMD_RETURN_NORMAL);
 }
 
@@ -60,21 +82,153 @@ start_cfg(void)
 {
 	const char	*home;
 	int		 quiet = 0;
+	struct client	*c;
 
-	cfg_client = TAILQ_FIRST(&clients);
-	if (cfg_client != NULL)
-		cfg_client->references++;
+	/*
+	 * Configuration files are loaded without a client, so NULL is passed
+	 * into load_cfg() and commands run in the global queue with
+	 * item->client NULL.
+	 *
+	 * However, we must block the initial client (but just the initial
+	 * client) so that its command runs after the configuration is loaded.
+	 * Because start_cfg() is called so early, we can be sure the client's
+	 * command queue is currently empty and our callback will be at the
+	 * front - we need to get in before MSG_COMMAND.
+	 */
+	cfg_client = c = TAILQ_FIRST(&clients);
+	if (c != NULL) {
+		cfg_item = cmdq_get_callback(cfg_client_done, NULL);
+		cmdq_append(c, cfg_item);
+	}
 
-	load_cfg(TMUX_CONF, cfg_client, NULL, 1);
+	load_cfg(TMUX_CONF, NULL, NULL, 1);
 
 	if (cfg_file == NULL && (home = find_home()) != NULL) {
 		xasprintf(&cfg_file, "%s/.tmux.conf", home);
 		quiet = 1;
 	}
 	if (cfg_file != NULL)
-		load_cfg(cfg_file, cfg_client, NULL, quiet);
+		load_cfg(cfg_file, NULL, NULL, quiet);
 
-	cmdq_append(cfg_client, cmdq_get_callback(cfg_done, NULL));
+	cmdq_append(NULL, cmdq_get_callback(cfg_done, NULL));
+}
+
+static int
+cfg_check_condition(const char *path, size_t line, const char *p, int *skip)
+{
+	struct format_tree	*ft;
+	char			*s;
+	int			 result;
+
+	while (isspace((u_char)*p))
+		p++;
+	if (p[0] == '\0') {
+		cfg_add_cause("%s:%zu: invalid condition", path, line);
+		*skip = 1;
+		return (0);
+	}
+
+	ft = format_create(NULL, NULL, FORMAT_NONE, FORMAT_NOJOBS);
+	s = format_expand(ft, p);
+	result = format_true(s);
+	free(s);
+	format_free(ft);
+
+	*skip = result;
+	return (result);
+}
+
+static void
+cfg_handle_if(const char *path, size_t line, struct cfg_conds *conds,
+    const char *p)
+{
+	struct cfg_cond	*cond;
+	struct cfg_cond	*parent = TAILQ_FIRST(conds);
+
+	/*
+	 * Add a new condition. If a previous condition exists and isn't
+	 * currently met, this new one also can't be met.
+	 */
+	cond = xcalloc(1, sizeof *cond);
+	cond->line = line;
+	if (parent == NULL || parent->met)
+		cond->met = cfg_check_condition(path, line, p, &cond->skip);
+	else
+		cond->skip = 1;
+	cond->saw_else = 0;
+	TAILQ_INSERT_HEAD(conds, cond, entry);
+}
+
+static void
+cfg_handle_elif(const char *path, size_t line, struct cfg_conds *conds,
+    const char *p)
+{
+	struct cfg_cond	*cond = TAILQ_FIRST(conds);
+
+	/*
+	 * If a previous condition exists and wasn't met, check this
+	 * one instead and change the state.
+	 */
+	if (cond == NULL || cond->saw_else)
+		cfg_add_cause("%s:%zu: unexpected %%elif", path, line);
+	else if (!cond->skip)
+		cond->met = cfg_check_condition(path, line, p, &cond->skip);
+	else
+		cond->met = 0;
+}
+
+static void
+cfg_handle_else(const char *path, size_t line, struct cfg_conds *conds)
+{
+	struct cfg_cond	*cond = TAILQ_FIRST(conds);
+
+	/*
+	 * If a previous condition exists and wasn't met and wasn't already
+	 * %else, use this one instead.
+	 */
+	if (cond == NULL || cond->saw_else) {
+		cfg_add_cause("%s:%zu: unexpected %%else", path, line);
+		return;
+	}
+	cond->saw_else = 1;
+	cond->met = !cond->skip;
+	cond->skip = 1;
+}
+
+static void
+cfg_handle_endif(const char *path, size_t line, struct cfg_conds *conds)
+{
+	struct cfg_cond	*cond = TAILQ_FIRST(conds);
+
+	/*
+	 * Remove previous condition if one exists.
+	 */
+	if (cond == NULL) {
+		cfg_add_cause("%s:%zu: unexpected %%endif", path, line);
+		return;
+	}
+	TAILQ_REMOVE(conds, cond, entry);
+	free(cond);
+}
+
+static void
+cfg_handle_directive(const char *p, const char *path, size_t line,
+    struct cfg_conds *conds)
+{
+	int	n = 0;
+
+	while (p[n] != '\0' && !isspace((u_char)p[n]))
+		n++;
+	if (strncmp(p, "%if", n) == 0)
+		cfg_handle_if(path, line, conds, p + n);
+	else if (strncmp(p, "%elif", n) == 0)
+		cfg_handle_elif(path, line, conds, p + n);
+	else if (strcmp(p, "%else") == 0)
+		cfg_handle_else(path, line, conds);
+	else if (strcmp(p, "%endif") == 0)
+		cfg_handle_endif(path, line, conds);
+	else
+		cfg_add_cause("%s:%zu: invalid directive: %s", path, line, p);
 }
 
 int
@@ -84,11 +238,13 @@ load_cfg(const char *path, struct client *c, struct cmdq_item *item, int quiet)
 	const char		 delim[3] = { '\\', '\\', '\0' };
 	u_int			 found = 0;
 	size_t			 line = 0;
-	char			*buf, *cause1, *p, *q, *s;
+	char			*buf, *cause1, *p, *q;
 	struct cmd_list		*cmdlist;
 	struct cmdq_item	*new_item;
-	int			 condition = 0;
-	struct format_tree	*ft;
+	struct cfg_cond		*cond, *cond1;
+	struct cfg_conds	 conds;
+
+	TAILQ_INIT(&conds);
 
 	log_debug("loading %s", path);
 	if ((f = fopen(path, "rb")) == NULL) {
@@ -112,32 +268,12 @@ load_cfg(const char *path, struct client *c, struct cmdq_item *item, int quiet)
 		while (q != p && isspace((u_char)*q))
 			*q-- = '\0';
 
-		if (condition != 0 && strcmp(p, "%endif") == 0) {
-			condition = 0;
+		if (*p == '%') {
+			cfg_handle_directive(p, path, line, &conds);
 			continue;
 		}
-		if (strncmp(p, "%if ", 4) == 0) {
-			if (condition != 0) {
-				cfg_add_cause("%s:%zu: nested %%if", path,
-				    line);
-				continue;
-			}
-			ft = format_create(NULL, FORMAT_NONE, FORMAT_NOJOBS);
-
-			s = p + 3;
-			while (isspace((u_char)*s))
-				s++;
-			s = format_expand(ft, s);
-			if (*s != '\0' && (s[0] != '0' || s[1] != '\0'))
-				condition = 1;
-			else
-				condition = -1;
-			free(s);
-
-			format_free(ft);
-			continue;
-		}
-		if (condition == -1)
+		cond = TAILQ_FIRST(&conds);
+		if (cond != NULL && !cond->met)
 			continue;
 
 		cmdlist = cmd_string_parse(p, path, line, &cause1);
@@ -151,8 +287,6 @@ load_cfg(const char *path, struct client *c, struct cmdq_item *item, int quiet)
 		}
 		free(buf);
 
-		if (cmdlist == NULL)
-			continue;
 		new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
 		if (item != NULL)
 			cmdq_insert_after(item, new_item);
@@ -164,6 +298,12 @@ load_cfg(const char *path, struct client *c, struct cmdq_item *item, int quiet)
 	}
 	fclose(f);
 
+	TAILQ_FOREACH_REVERSE_SAFE(cond, &conds, cfg_conds, entry, cond1) {
+		cfg_add_cause("%s:%zu: unterminated %%if", path, cond->line);
+		TAILQ_REMOVE(&conds, cond, entry);
+		free(cond);
+	}
+
 	return (found);
 }
 
@@ -200,15 +340,17 @@ cfg_print_causes(struct cmdq_item *item)
 void
 cfg_show_causes(struct session *s)
 {
-	struct window_pane	*wp;
-	u_int			 i;
+	struct window_pane		*wp;
+	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);
-	window_copy_init_for_output(wp);
+	wme = TAILQ_FIRST(&wp->modes);
+	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>
@@ -63,7 +62,7 @@ static void		 client_write(int, const char *, size_t);
 static void		 client_signal(int);
 static void		 client_dispatch(struct imsg *, void *);
 static void		 client_dispatch_attached(struct imsg *);
-static void		 client_dispatch_wait(struct imsg *, const char *);
+static void		 client_dispatch_wait(struct imsg *);
 static const char	*client_exit_message(void);
 
 /*
@@ -156,7 +155,7 @@ retry:
 			close(lockfd);
 			return (-1);
 		}
-		fd = server_start(base, lockfd, lockfile);
+		fd = server_start(client_proc, base, lockfd, lockfile);
 	}
 
 	if (locked && lockfd >= 0) {
@@ -214,8 +213,7 @@ client_exit_message(void)
 
 /* Client main loop. */
 int
-client_main(struct event_base *base, int argc, char **argv, int flags,
-    const char *shellcmd)
+client_main(struct event_base *base, int argc, char **argv, int flags)
 {
 	struct cmd		*cmd;
 	struct cmd_list		*cmdlist;
@@ -224,7 +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;
 
@@ -236,7 +234,7 @@ client_main(struct event_base *base, int argc, char **argv, int flags,
 
 	/* Set up the initial command. */
 	cmdflags = 0;
-	if (shellcmd != NULL) {
+	if (shell_command != NULL) {
 		msg = MSG_SHELL;
 		cmdflags = CMD_STARTSERVER;
 	} else if (argc == 0) {
@@ -261,7 +259,8 @@ client_main(struct event_base *base, int argc, char **argv, int flags,
 	}
 
 	/* Create client process structure (starts logging). */
-	client_proc = proc_start("client", base, 0, client_signal);
+	client_proc = proc_start("client");
+	proc_set_signals(client_proc, client_signal);
 
 	/* Initialize the client socket and start the server. */
 	fd = client_connect(base, socket_path, cmdflags & CMD_STARTSERVER);
@@ -275,14 +274,11 @@ client_main(struct event_base *base, int argc, char **argv, int flags,
 		}
 		return (1);
 	}
-	client_peer = proc_add_peer(client_proc, fd, client_dispatch,
-	    (void *)shellcmd);
+	client_peer = proc_add_peer(client_proc, fd, client_dispatch, NULL);
 
 	/* Save these before pledge(). */
-	if ((cwd = getcwd(path, sizeof path)) == NULL) {
-		if ((cwd = find_home()) == NULL)
-			cwd = "/";
-	}
+	if ((cwd = find_cwd()) == NULL && (cwd = find_home()) == NULL)
+		cwd = "/";
 	if ((ttynam = ttyname(STDIN_FILENO)) == NULL)
 		ttynam = "";
 
@@ -339,6 +335,10 @@ client_main(struct event_base *base, int argc, char **argv, int flags,
 		size = 0;
 		for (i = 0; i < argc; i++)
 			size += strlen(argv[i]) + 1;
+		if (size > MAX_IMSGSIZE - (sizeof *data)) {
+			fprintf(stderr, "command too long\n");
+			return (1);
+		}
 		data = xmalloc((sizeof *data) + size);
 
 		/* Prepare command for server. */
@@ -367,7 +367,6 @@ client_main(struct event_base *base, int argc, char **argv, int flags,
 	if (client_exittype == MSG_EXEC) {
 		if (client_flags & CLIENT_CONTROLCONTROL)
 			tcsetattr(STDOUT_FILENO, TCSAFLUSH, &saved_tio);
-		clear_signals(0);
 		client_exec(client_execshell, client_execcmd);
 	}
 
@@ -451,6 +450,7 @@ client_write(int fd, const char *data, size_t size)
 {
 	ssize_t	used;
 
+	log_debug("%s: %.*s", __func__, (int)size, data);
 	while (size != 0) {
 		used = write(fd, data, size);
 		if (used == -1) {
@@ -483,6 +483,8 @@ client_exec(const char *shell, const char *shellcmd)
 		xasprintf(&argv0, "%s", name);
 	setenv("SHELL", shell, 1);
 
+	proc_clear_signals(client_proc, 1);
+
 	setblocking(STDIN_FILENO, 1);
 	setblocking(STDOUT_FILENO, 1);
 	setblocking(STDERR_FILENO, 1);
@@ -534,7 +536,7 @@ client_signal(int sig)
 
 /* Callback for client read events. */
 static void
-client_dispatch(struct imsg *imsg, void *arg)
+client_dispatch(struct imsg *imsg, __unused void *arg)
 {
 	if (imsg == NULL) {
 		client_exitreason = CLIENT_EXIT_LOST_SERVER;
@@ -546,12 +548,12 @@ client_dispatch(struct imsg *imsg, void *arg)
 	if (client_attached)
 		client_dispatch_attached(imsg);
 	else
-		client_dispatch_wait(imsg, arg);
+		client_dispatch_wait(imsg);
 }
 
 /* Dispatch imsgs when in wait state (before MSG_READY). */
 static void
-client_dispatch_wait(struct imsg *imsg, const char *shellcmd)
+client_dispatch_wait(struct imsg *imsg)
 {
 	char			*data;
 	ssize_t			 datalen;
@@ -630,8 +632,7 @@ client_dispatch_wait(struct imsg *imsg, const char *shellcmd)
 		if (datalen == 0 || data[datalen - 1] != '\0')
 			fatalx("bad MSG_SHELL string");
 
-		clear_signals(0);
-		client_exec(data, shellcmd);
+		client_exec(data, shell_command);
 		/* NOTREACHED */
 	case MSG_DETACH:
 	case MSG_DETACHKILL:

cmd-attach-session.c

@@ -40,20 +40,23 @@ const struct cmd_entry cmd_attach_session_entry = {
 	.args = { "c:dErt:", 0, 0 },
 	.usage = "[-dEr] [-c working-directory] " CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION_WITHPANE,
+	/* -t is special */
 
 	.flags = CMD_STARTSERVER,
 	.exec = cmd_attach_session_exec
 };
 
 enum cmd_retval
-cmd_attach_session(struct cmdq_item *item, int dflag, int rflag,
-    const char *cflag, int Eflag)
+cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
+    int rflag, const char *cflag, int Eflag)
 {
-	struct session		*s = item->state.tflag.s;
+	struct cmd_find_state	*current = &item->shared->current;
+	enum cmd_find_type	 type;
+	int			 flags;
 	struct client		*c = item->client, *c_loop;
-	struct winlink		*wl = item->state.tflag.wl;
-	struct window_pane	*wp = item->state.tflag.wp;
+	struct session		*s;
+	struct winlink		*wl;
+	struct window_pane	*wp;
 	char			*cause;
 
 	if (RB_EMPTY(&sessions)) {
@@ -69,10 +72,27 @@ cmd_attach_session(struct cmdq_item *item, int dflag, int rflag,
 		return (CMD_RETURN_ERROR);
 	}
 
+	if (tflag != NULL && tflag[strcspn(tflag, ":.")] != '\0') {
+		type = CMD_FIND_PANE;
+		flags = 0;
+	} else {
+		type = CMD_FIND_SESSION;
+		flags = CMD_FIND_PREFER_UNATTACHED;
+	}
+	if (cmd_find_target(&item->target, item, tflag, type, flags) != 0)
+		return (CMD_RETURN_ERROR);
+	s = item->target.s;
+	wl = item->target.wl;
+	wp = item->target.wp;
+
 	if (wl != NULL) {
 		if (wp != NULL)
 			window_set_active_pane(wp->window, wp);
 		session_set_current(s, wl);
+		if (wp != NULL)
+			cmd_find_from_winlink_pane(current, wl, wp, 0);
+		else
+			cmd_find_from_winlink(current, wl, 0);
 	}
 
 	if (cflag != NULL) {
@@ -80,6 +100,7 @@ cmd_attach_session(struct cmdq_item *item, int dflag, int rflag,
 		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) {
@@ -92,8 +113,9 @@ cmd_attach_session(struct cmdq_item *item, int dflag, int rflag,
 			environ_update(s->options, c->environ, s->environ);
 
 		c->session = s;
-		if (!item->repeat)
+		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);
@@ -121,6 +143,7 @@ cmd_attach_session(struct cmdq_item *item, int dflag, int rflag,
 
 		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);
@@ -145,6 +168,7 @@ cmd_attach_session_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args	*args = self->args;
 
-	return (cmd_attach_session(item, args_has(args, 'd'),
-	    args_has(args, 'r'), args_get(args, 'c'), args_has(args, 'E')));
+	return (cmd_attach_session(item, args_get(args, 't'),
+	    args_has(args, 'd'), args_has(args, 'r'), args_get(args, 'c'),
+	    args_has(args, 'E')));
 }

cmd-break-pane.c

@@ -35,10 +35,11 @@ const struct cmd_entry cmd_break_pane_entry = {
 	.alias = "breakp",
 
 	.args = { "dPF:n:s:t:", 0, 0 },
-	.usage = "[-dP] [-F format] [-n window-name] [-s src-pane] [-t dst-window]",
+	.usage = "[-dP] [-F format] [-n window-name] [-s src-pane] "
+		 "[-t dst-window]",
 
-	.sflag = CMD_PANE,
-	.tflag = CMD_WINDOW_INDEX,
+	.source = { 's', CMD_FIND_PANE, 0 },
+	.target = { 't', CMD_FIND_WINDOW, CMD_FIND_WINDOW_INDEX },
 
 	.flags = 0,
 	.exec = cmd_break_pane_exec
@@ -48,14 +49,15 @@ static enum cmd_retval
 cmd_break_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct client		*c = item->state.c;
-	struct winlink		*wl = item->state.sflag.wl;
-	struct session		*src_s = item->state.sflag.s;
-	struct session		*dst_s = item->state.tflag.s;
-	struct window_pane	*wp = item->state.sflag.wp;
+	struct cmd_find_state	*current = &item->shared->current;
+	struct client		*c = cmd_find_client(item, NULL, 1);
+	struct winlink		*wl = item->source.wl;
+	struct session		*src_s = item->source.s;
+	struct session		*dst_s = item->target.s;
+	struct window_pane	*wp = item->source.wp;
 	struct window		*w = wl->window;
 	char			*name, *cause;
-	int			 idx = item->state.tflag.idx;
+	int			 idx = item->target.idx;
 	const char		*template;
 	char			*cp;
 
@@ -74,7 +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;
 
@@ -93,8 +95,10 @@ cmd_break_pane_exec(struct cmd *self, struct cmdq_item *item)
 	if (idx == -1)
 		idx = -1 - options_get_number(dst_s->options, "base-index");
 	wl = session_attach(dst_s, w, idx, &cause); /* can't fail */
-	if (!args_has(self->args, 'd'))
+	if (!args_has(self->args, 'd')) {
 		session_select(dst_s, wl->idx);
+		cmd_find_from_session(current, dst_s, 0);
+	}
 
 	server_redraw_session(src_s);
 	if (src_s != dst_s)

cmd-capture-pane.c

@@ -41,9 +41,9 @@ 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,
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_capture_pane_exec
@@ -56,7 +56,7 @@ const struct cmd_entry cmd_clear_history_entry = {
 	.args = { "t:", 0, 0 },
 	.usage = CMD_TARGET_PANE_USAGE,
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_capture_pane_exec
@@ -193,14 +193,13 @@ cmd_capture_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
 	struct client		*c;
-	struct window_pane	*wp = item->state.tflag.wp;
+	struct window_pane	*wp = item->target.wp;
 	char			*buf, *cause;
 	const char		*bufname;
 	size_t			 len;
 
 	if (self->entry == &cmd_clear_history_entry) {
-		if (wp->mode == &window_copy_mode)
-			window_pane_reset_mode(wp);
+		window_pane_reset_mode_all(wp);
 		grid_clear_history(wp->base.grid);
 		return (CMD_RETURN_NORMAL);
 	}

cmd-choose-buffer.c

@@ -1,101 +0,0 @@
-/* $OpenBSD$ */
-
-/*
- * Copyright (c) 2010 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 <ctype.h>
-#include <stdlib.h>
-
-#include "tmux.h"
-
-/*
- * Enter choice mode to choose a buffer.
- */
-
-#define CHOOSE_BUFFER_TEMPLATE						\
-	"#{buffer_name}: #{buffer_size} bytes: #{buffer_sample}"
-
-static enum cmd_retval	cmd_choose_buffer_exec(struct cmd *,
-			    struct cmdq_item *);
-
-const struct cmd_entry cmd_choose_buffer_entry = {
-	.name = "choose-buffer",
-	.alias = NULL,
-
-	.args = { "F:t:", 0, 1 },
-	.usage = CMD_TARGET_WINDOW_USAGE " [-F format] [template]",
-
-	.tflag = CMD_WINDOW,
-
-	.flags = 0,
-	.exec = cmd_choose_buffer_exec
-};
-
-static enum cmd_retval
-cmd_choose_buffer_exec(struct cmd *self, struct cmdq_item *item)
-{
-	struct args			*args = self->args;
-	struct client			*c = item->state.c;
-	struct winlink			*wl = item->state.tflag.wl;
-	struct window_choose_data	*cdata;
-	struct paste_buffer		*pb;
-	char				*action, *action_data;
-	const char			*template;
-	u_int				 idx;
-
-	if (c == NULL) {
-		cmdq_error(item, "no client available");
-		return (CMD_RETURN_ERROR);
-	}
-
-	if ((template = args_get(args, 'F')) == NULL)
-		template = CHOOSE_BUFFER_TEMPLATE;
-
-	if (paste_get_top(NULL) == NULL)
-		return (CMD_RETURN_NORMAL);
-
-	if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
-		return (CMD_RETURN_NORMAL);
-
-	if (args->argc != 0)
-		action = xstrdup(args->argv[0]);
-	else
-		action = xstrdup("paste-buffer -b '%%'");
-
-	idx = 0;
-	pb = NULL;
-	while ((pb = paste_walk(pb)) != NULL) {
-		cdata = window_choose_data_create(TREE_OTHER, c, c->session);
-		cdata->idx = idx;
-
-		cdata->ft_template = xstrdup(template);
-		format_defaults_paste_buffer(cdata->ft, pb);
-
-		xasprintf(&action_data, "%s", paste_buffer_name(pb));
-		cdata->command = cmd_template_replace(action, action_data, 1);
-		free(action_data);
-
-		window_choose_add(wl->window->active, cdata);
-		idx++;
-	}
-	free(action);
-
-	window_choose_ready(wl->window->active, 0, NULL);
-
-	return (CMD_RETURN_NORMAL);
-}

cmd-choose-client.c

@@ -1,135 +0,0 @@
-/* $OpenBSD$ */
-
-/*
- * Copyright (c) 2009 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 <ctype.h>
-#include <stdlib.h>
-
-#include "tmux.h"
-
-/*
- * Enter choice mode to choose a client.
- */
-
-#define CHOOSE_CLIENT_TEMPLATE					\
-	"#{client_name}: #{session_name} "			\
-	"[#{client_width}x#{client_height} #{client_termname}]"	\
-	"#{?client_utf8, (utf8),}#{?client_readonly, (ro),} "	\
-	"(last used #{t:client_activity})"
-
-static enum cmd_retval	cmd_choose_client_exec(struct cmd *,
-			    struct cmdq_item *);
-
-static void	cmd_choose_client_callback(struct window_choose_data *);
-
-const struct cmd_entry cmd_choose_client_entry = {
-	.name = "choose-client",
-	.alias = NULL,
-
-	.args = { "F:t:", 0, 1 },
-	.usage = CMD_TARGET_WINDOW_USAGE " [-F format] [template]",
-
-	.tflag = CMD_WINDOW,
-
-	.flags = 0,
-	.exec = cmd_choose_client_exec
-};
-
-struct cmd_choose_client_data {
-	struct client	*client;
-};
-
-static enum cmd_retval
-cmd_choose_client_exec(struct cmd *self, struct cmdq_item *item)
-{
-	struct args			*args = self->args;
-	struct client			*c = item->state.c;
-	struct client			*c1;
-	struct window_choose_data	*cdata;
-	struct winlink			*wl = item->state.tflag.wl;
-	const char			*template;
-	char				*action;
-	u_int			 	 idx, cur;
-
-	if (c == NULL) {
-		cmdq_error(item, "no client available");
-		return (CMD_RETURN_ERROR);
-	}
-
-	if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
-		return (CMD_RETURN_NORMAL);
-
-	if ((template = args_get(args, 'F')) == NULL)
-		template = CHOOSE_CLIENT_TEMPLATE;
-
-	if (args->argc != 0)
-		action = xstrdup(args->argv[0]);
-	else
-		action = xstrdup("detach-client -t '%%'");
-
-	cur = idx = 0;
-	TAILQ_FOREACH(c1, &clients, entry) {
-		if (c1->session == NULL)
-			continue;
-		if (c1 == item->client)
-			cur = idx;
-
-		cdata = window_choose_data_create(TREE_OTHER, c, c->session);
-		cdata->idx = idx;
-
-		cdata->ft_template = xstrdup(template);
-		format_add(cdata->ft, "line", "%u", idx);
-		format_defaults(cdata->ft, c1, NULL, NULL, NULL);
-
-		cdata->command = cmd_template_replace(action, c1->name, 1);
-
-		window_choose_add(wl->window->active, cdata);
-
-		idx++;
-	}
-	free(action);
-
-	window_choose_ready(wl->window->active, cur,
-	    cmd_choose_client_callback);
-
-	return (CMD_RETURN_NORMAL);
-}
-
-static void
-cmd_choose_client_callback(struct window_choose_data *cdata)
-{
-	struct client  	*c;
-	u_int		 idx;
-
-	if (cdata == NULL)
-		return;
-	if (cdata->start_client->flags & CLIENT_DEAD)
-		return;
-
-	idx = 0;
-	TAILQ_FOREACH(c, &clients, entry) {
-		if (idx == cdata->idx)
-			break;
-		idx++;
-	}
-	if (c == NULL || c->session == NULL)
-		return;
-
-	window_choose_data_run(cdata);
-}

cmd-choose-tree.c

@@ -18,66 +18,51 @@
 
 #include <sys/types.h>
 
-#include <ctype.h>
-#include <stdlib.h>
-
-#include <string.h>
-
 #include "tmux.h"
 
-#define CMD_CHOOSE_TREE_WINDOW_ACTION "select-window -t '%%'"
-#define CMD_CHOOSE_TREE_SESSION_ACTION "switch-client -t '%%'"
-
 /*
- * Enter choice mode to choose a session and/or window.
+ * Enter a mode.
  */
 
-#define CHOOSE_TREE_SESSION_TEMPLATE				\
-	"#{session_name}: #{session_windows} windows"		\
-	"#{?session_grouped, (group ,}"				\
-	"#{session_group}#{?session_grouped,),}"		\
-	"#{?session_attached, (attached),}"
-#define CHOOSE_TREE_WINDOW_TEMPLATE				\
-	"#{window_index}: #{window_name}#{window_flags} "	\
-	"\"#{pane_title}\""
-
 static enum cmd_retval	cmd_choose_tree_exec(struct cmd *, struct cmdq_item *);
 
 const struct cmd_entry cmd_choose_tree_entry = {
 	.name = "choose-tree",
 	.alias = NULL,
 
-	.args = { "S:W:swub:c:t:", 0, 1 },
-	.usage = "[-suw] [-b session-template] [-c window template] "
-		 "[-S format] [-W format] " CMD_TARGET_WINDOW_USAGE,
+	.args = { "F:Gf:NO:st:wZ", 0, 1 },
+	.usage = "[-GNsw] [-F format] [-f filter] [-O sort-order] "
+	         CMD_TARGET_PANE_USAGE " [template]",
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_choose_tree_exec
 };
 
-const struct cmd_entry cmd_choose_session_entry = {
-	.name = "choose-session",
+const struct cmd_entry cmd_choose_client_entry = {
+	.name = "choose-client",
 	.alias = NULL,
 
-	.args = { "F:t:", 0, 1 },
-	.usage = CMD_TARGET_WINDOW_USAGE " [-F format] [template]",
+	.args = { "F:f:NO:t:Z", 0, 1 },
+	.usage = "[-N] [-F format] [-f filter] [-O sort-order] "
+	         CMD_TARGET_PANE_USAGE " [template]",
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_choose_tree_exec
 };
 
-const struct cmd_entry cmd_choose_window_entry = {
-	.name = "choose-window",
+const struct cmd_entry cmd_choose_buffer_entry = {
+	.name = "choose-buffer",
 	.alias = NULL,
 
-	.args = { "F:t:", 0, 1 },
-	.usage = CMD_TARGET_WINDOW_USAGE "[-F format] [template]",
+	.args = { "F:f:NO:t:Z", 0, 1 },
+	.usage = "[-N] [-F format] [-f filter] [-O sort-order] "
+	         CMD_TARGET_PANE_USAGE " [template]",
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_choose_tree_exec
@@ -87,167 +72,20 @@ static enum cmd_retval
 cmd_choose_tree_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args			*args = self->args;
-	struct client			*c = item->state.c;
-	struct winlink			*wl = item->state.tflag.wl, *wm;
-	struct session			*s = item->state.tflag.s, *s2;
-	struct window_choose_data	*wcd = NULL;
-	const char			*ses_template, *win_template;
-	char				*final_win_action, *cur_win_template;
-	char				*final_win_template_middle;
-	char				*final_win_template_last;
-	const char			*ses_action, *win_action;
-	u_int				 cur_win, idx_ses, win_ses, win_max;
-	u_int				 wflag, sflag;
+	struct window_pane		*wp = item->target.wp;
+	const struct window_mode	*mode;
 
-	ses_template = win_template = NULL;
-	ses_action = win_action = NULL;
-
-	if (c == NULL) {
-		cmdq_error(item, "no client available");
-		return (CMD_RETURN_ERROR);
-	}
-
-	if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
-		return (CMD_RETURN_NORMAL);
-
-	/* Sort out which command this is. */
-	wflag = sflag = 0;
-	if (self->entry == &cmd_choose_session_entry) {
-		sflag = 1;
-		if ((ses_template = args_get(args, 'F')) == NULL)
-			ses_template = CHOOSE_TREE_SESSION_TEMPLATE;
-
-		if (args->argc != 0)
-			ses_action = args->argv[0];
-		else
-			ses_action = CMD_CHOOSE_TREE_SESSION_ACTION;
-	} else if (self->entry == &cmd_choose_window_entry) {
-		wflag = 1;
-		if ((win_template = args_get(args, 'F')) == NULL)
-			win_template = CHOOSE_TREE_WINDOW_TEMPLATE;
-
-		if (args->argc != 0)
-			win_action = args->argv[0];
-		else
-			win_action = CMD_CHOOSE_TREE_WINDOW_ACTION;
-	} else {
-		wflag = args_has(args, 'w');
-		sflag = args_has(args, 's');
-
-		if ((ses_action = args_get(args, 'b')) == NULL)
-			ses_action = CMD_CHOOSE_TREE_SESSION_ACTION;
-
-		if ((win_action = args_get(args, 'c')) == NULL)
-			win_action = CMD_CHOOSE_TREE_WINDOW_ACTION;
-
-		if ((ses_template = args_get(args, 'S')) == NULL)
-			ses_template = CHOOSE_TREE_SESSION_TEMPLATE;
-
-		if ((win_template = args_get(args, 'W')) == NULL)
-			win_template = CHOOSE_TREE_WINDOW_TEMPLATE;
-	}
-
-	/*
-	 * If not asking for windows and sessions, assume no "-ws" given and
-	 * hence display the entire tree outright.
-	 */
-	if (!wflag && !sflag)
-		wflag = sflag = 1;
-
-	/*
-	 * If we're drawing in tree mode, including sessions, then pad the
-	 * window template, otherwise just render the windows as a flat list
-	 * without any padding.
-	 */
-	if (wflag && sflag) {
-		xasprintf(&final_win_template_middle,
-		    " \001tq\001> %s", win_template);
-		xasprintf(&final_win_template_last,
-		    " \001mq\001> %s", win_template);
-	} else if (wflag) {
-		final_win_template_middle = xstrdup(win_template);
-		final_win_template_last = xstrdup(win_template);
+	if (self->entry == &cmd_choose_buffer_entry) {
+		if (paste_get_top(NULL) == NULL)
+			return (CMD_RETURN_NORMAL);
+		mode = &window_buffer_mode;
+	} else if (self->entry == &cmd_choose_client_entry) {
+		if (server_client_how_many() == 0)
+			return (CMD_RETURN_NORMAL);
+		mode = &window_client_mode;
 	} else
-		final_win_template_middle = final_win_template_last = NULL;
-
-	idx_ses = cur_win = -1;
-	RB_FOREACH(s2, sessions, &sessions) {
-		idx_ses++;
-
-		/*
-		 * If we're just choosing windows, jump straight there. Note
-		 * that this implies the current session, so only choose
-		 * windows when the session matches this one.
-		 */
-		if (wflag && !sflag) {
-			if (s != s2)
-				continue;
-			goto windows_only;
-		}
-
-		wcd = window_choose_add_session(wl->window->active,
-		    c, s2, ses_template, ses_action, idx_ses);
-
-		/* If we're just choosing sessions, skip choosing windows. */
-		if (sflag && !wflag) {
-			if (s == s2)
-				cur_win = idx_ses;
-			continue;
-		}
-windows_only:
-		win_ses = win_max = -1;
-		RB_FOREACH(wm, winlinks, &s2->windows)
-			win_max++;
-		RB_FOREACH(wm, winlinks, &s2->windows) {
-			win_ses++;
-			if (sflag && wflag)
-				idx_ses++;
-
-			if (wm == s2->curw && s == s2) {
-				if (wflag && !sflag) {
-					/*
-					 * Then we're only counting windows.
-					 * So remember which is the current
-					 * window in the list.
-					 */
-					cur_win = win_ses;
-				} else
-					cur_win = idx_ses;
-			}
-
-			xasprintf(&final_win_action, "%s %s %s",
-			    wcd != NULL ? wcd->command : "",
-			    wcd != NULL ? ";" : "", win_action);
-
-			if (win_ses != win_max)
-				cur_win_template = final_win_template_middle;
-			else
-				cur_win_template = final_win_template_last;
-
-			window_choose_add_window(wl->window->active,
-			    c, s2, wm, cur_win_template,
-			    final_win_action,
-			    (wflag && !sflag) ? win_ses : idx_ses);
-
-			free(final_win_action);
-		}
-
-		/*
-		 * If we're just drawing windows, don't consider moving on to
-		 * other sessions as we only list windows in this session.
-		 */
-		if (wflag && !sflag)
-			break;
-	}
-	free(final_win_template_middle);
-	free(final_win_template_last);
-
-	window_choose_ready(wl->window->active, cur_win, NULL);
-
-	if (args_has(args, 'u')) {
-		window_choose_expand_all(wl->window->active);
-		window_choose_set_current(wl->window->active, cur_win);
-	}
+		mode = &window_tree_mode;
 
+	window_pane_set_mode(wp, mode, &item->target, args);
 	return (CMD_RETURN_NORMAL);
 }

cmd-command-prompt.c

@@ -32,7 +32,8 @@
 static enum cmd_retval	cmd_command_prompt_exec(struct cmd *,
 			    struct cmdq_item *);
 
-static int	cmd_command_prompt_callback(void *, const char *, int);
+static int	cmd_command_prompt_callback(struct client *, void *,
+		    const char *, int);
 static void	cmd_command_prompt_free(void *);
 
 const struct cmd_entry cmd_command_prompt_entry = {
@@ -43,24 +44,21 @@ const struct cmd_entry cmd_command_prompt_entry = {
 	.usage = "[-1Ni] [-I inputs] [-p prompts] " CMD_TARGET_CLIENT_USAGE " "
 		 "[template]",
 
-	.tflag = CMD_CLIENT,
-
 	.flags = 0,
 	.exec = cmd_command_prompt_exec
 };
 
 struct cmd_command_prompt_cdata {
-	struct client	*c;
-	int		 flags;
+	int	 flags;
 
-	char		*inputs;
-	char		*next_input;
+	char	*inputs;
+	char	*next_input;
 
-	char		*prompts;
-	char		*next_prompt;
+	char	*prompts;
+	char	*next_prompt;
 
-	char		*template;
-	int		 idx;
+	char	*template;
+	int	 idx;
 };
 
 static enum cmd_retval
@@ -69,15 +67,17 @@ cmd_command_prompt_exec(struct cmd *self, struct cmdq_item *item)
 	struct args			*args = self->args;
 	const char			*inputs, *prompts;
 	struct cmd_command_prompt_cdata	*cdata;
-	struct client			*c = item->state.c;
+	struct client			*c;
 	char				*prompt, *ptr, *input = NULL;
 	size_t				 n;
 
+	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
+		return (CMD_RETURN_ERROR);
+
 	if (c->prompt_string != NULL)
 		return (CMD_RETURN_NORMAL);
 
 	cdata = xcalloc(1, sizeof *cdata);
-	cdata->c = c;
 
 	cdata->inputs = NULL;
 	cdata->next_input = NULL;
@@ -141,10 +141,10 @@ cmd_command_prompt_error(struct cmdq_item *item, void *data)
 }
 
 static int
-cmd_command_prompt_callback(void *data, const char *s, int done)
+cmd_command_prompt_callback(struct client *c, void *data, const char *s,
+    int done)
 {
 	struct cmd_command_prompt_cdata	*cdata = data;
-	struct client			*c = cdata->c;
 	struct cmd_list			*cmdlist;
 	struct cmdq_item		*new_item;
 	char				*cause, *new_template, *prompt, *ptr;
@@ -192,7 +192,7 @@ cmd_command_prompt_callback(void *data, const char *s, int done)
 
 	if (!done)
 		free(new_template);
-	if (c->prompt_callbackfn != (void *)&cmd_command_prompt_callback)
+	if (c->prompt_inputcb != cmd_command_prompt_callback)
 		return (1);
 	return (0);
 }

cmd-confirm-before.c

@@ -31,7 +31,8 @@
 static enum cmd_retval	cmd_confirm_before_exec(struct cmd *,
 			    struct cmdq_item *);
 
-static int	cmd_confirm_before_callback(void *, const char *, int);
+static int	cmd_confirm_before_callback(struct client *, void *,
+		    const char *, int);
 static void	cmd_confirm_before_free(void *);
 
 const struct cmd_entry cmd_confirm_before_entry = {
@@ -41,15 +42,12 @@ const struct cmd_entry cmd_confirm_before_entry = {
 	.args = { "p:t:", 1, 1 },
 	.usage = "[-p prompt] " CMD_TARGET_CLIENT_USAGE " command",
 
-	.tflag = CMD_CLIENT,
-
 	.flags = 0,
 	.exec = cmd_confirm_before_exec
 };
 
 struct cmd_confirm_before_data {
-	char		*cmd;
-	struct client	*client;
+	char	*cmd;
 };
 
 static enum cmd_retval
@@ -57,10 +55,13 @@ cmd_confirm_before_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args			*args = self->args;
 	struct cmd_confirm_before_data	*cdata;
-	struct client			*c = item->state.c;
+	struct client			*c;
 	char				*cmd, *copy, *new_prompt, *ptr;
 	const char			*prompt;
 
+	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
+		return (CMD_RETURN_ERROR);
+
 	if ((prompt = args_get(args, 'p')) != NULL)
 		xasprintf(&new_prompt, "%s ", prompt);
 	else {
@@ -73,9 +74,6 @@ cmd_confirm_before_exec(struct cmd *self, struct cmdq_item *item)
 	cdata = xmalloc(sizeof *cdata);
 	cdata->cmd = xstrdup(args->argv[0]);
 
-	cdata->client = c;
-	cdata->client->references++;
-
 	status_prompt_set(c, new_prompt, NULL,
 	    cmd_confirm_before_callback, cmd_confirm_before_free, cdata,
 	    PROMPT_SINGLE);
@@ -96,10 +94,10 @@ cmd_confirm_before_error(struct cmdq_item *item, void *data)
 }
 
 static int
-cmd_confirm_before_callback(void *data, const char *s, __unused int done)
+cmd_confirm_before_callback(struct client *c, void *data, const char *s,
+    __unused int done)
 {
 	struct cmd_confirm_before_data	*cdata = data;
-	struct client			*c = cdata->client;
 	struct cmd_list			*cmdlist;
 	struct cmdq_item		*new_item;
 	char				*cause;
@@ -134,9 +132,6 @@ static void
 cmd_confirm_before_free(void *data)
 {
 	struct cmd_confirm_before_data	*cdata = data;
-	struct client			*c = cdata->client;
-
-	server_client_unref(c);
 
 	free(cdata->cmd);
 	free(cdata);

cmd-copy-mode.c

@@ -33,7 +33,7 @@ const struct cmd_entry cmd_copy_mode_entry = {
 	.args = { "Met:u", 0, 0 },
 	.usage = "[-Mu] " CMD_TARGET_PANE_USAGE,
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_copy_mode_exec
@@ -46,7 +46,7 @@ const struct cmd_entry cmd_clock_mode_entry = {
 	.args = { "t:", 0, 0 },
 	.usage = CMD_TARGET_PANE_USAGE,
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_copy_mode_exec
@@ -56,33 +56,28 @@ static enum cmd_retval
 cmd_copy_mode_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
+	struct cmdq_shared	*shared = item->shared;
 	struct client		*c = item->client;
 	struct session		*s;
-	struct window_pane	*wp = item->state.tflag.wp;
+	struct window_pane	*wp = item->target.wp;
 
 	if (args_has(args, 'M')) {
-		if ((wp = cmd_mouse_pane(&item->mouse, &s, NULL)) == NULL)
+		if ((wp = cmd_mouse_pane(&shared->mouse, &s, NULL)) == NULL)
 			return (CMD_RETURN_NORMAL);
 		if (c == NULL || c->session != s)
 			return (CMD_RETURN_NORMAL);
 	}
 
 	if (self->entry == &cmd_clock_mode_entry) {
-		window_pane_set_mode(wp, &window_clock_mode);
+		window_pane_set_mode(wp, &window_clock_mode, NULL, NULL);
 		return (CMD_RETURN_NORMAL);
 	}
 
-	if (wp->mode != &window_copy_mode) {
-		if (window_pane_set_mode(wp, &window_copy_mode) != 0)
-			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, &item->mouse);
-	}
-	if (wp->mode == &window_copy_mode && args_has(self->args, 'u'))
+	if (window_pane_set_mode(wp, &window_copy_mode, NULL, args) != 0)
+		return (CMD_RETURN_NORMAL);
+	if (args_has(args, 'M'))
+		window_copy_start_drag(c, &shared->mouse);
+	if (args_has(self->args, 'u'))
 		window_copy_pageup(wp, 0);
 
 	return (CMD_RETURN_NORMAL);

cmd-detach-client.c

@@ -37,8 +37,7 @@ const struct cmd_entry cmd_detach_client_entry = {
 	.usage = "[-aP] [-E shell-command] "
 	         "[-s target-session] " CMD_TARGET_CLIENT_USAGE,
 
-	.sflag = CMD_SESSION,
-	.tflag = CMD_CLIENT,
+	.source = { 's', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
 
 	.flags = CMD_READONLY,
 	.exec = cmd_detach_client_exec
@@ -51,8 +50,6 @@ const struct cmd_entry cmd_suspend_client_entry = {
 	.args = { "t:", 0, 0 },
 	.usage = CMD_TARGET_CLIENT_USAGE,
 
-	.tflag = CMD_CLIENT,
-
 	.flags = 0,
 	.exec = cmd_detach_client_exec
 };
@@ -61,15 +58,16 @@ static enum cmd_retval
 cmd_detach_client_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args	*args = self->args;
-	struct client	*c = item->state.c, *cloop;
+	struct client	*c, *cloop;
 	struct session	*s;
 	enum msgtype	 msgtype;
 	const char	*cmd = args_get(args, 'E');
 
+	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
+		return (CMD_RETURN_ERROR);
+
 	if (self->entry == &cmd_suspend_client_entry) {
-		tty_stop_tty(&c->tty);
-		c->flags |= CLIENT_SUSPENDED;
-		proc_send(c->peer, MSG_SUSPEND, -1, NULL, 0);
+		server_client_suspend(c);
 		return (CMD_RETURN_NORMAL);
 	}
 
@@ -79,7 +77,9 @@ cmd_detach_client_exec(struct cmd *self, struct cmdq_item *item)
 		msgtype = MSG_DETACH;
 
 	if (args_has(args, 's')) {
-		s = item->state.sflag.s;
+		s = item->source.s;
+		if (s == NULL)
+			return (CMD_RETURN_NORMAL);
 		TAILQ_FOREACH(cloop, &clients, entry) {
 			if (cloop->session == s) {
 				if (cmd != NULL)

cmd-display-message.c

@@ -39,28 +39,36 @@ const struct cmd_entry cmd_display_message_entry = {
 	.name = "display-message",
 	.alias = "display",
 
-	.args = { "c:pt:F:", 0, 1 },
-	.usage = "[-p] [-c target-client] [-F format] "
+	.args = { "ac:pt:F:v", 0, 1 },
+	.usage = "[-apv] [-c target-client] [-F format] "
 		 CMD_TARGET_PANE_USAGE " [message]",
 
-	.cflag = CMD_CLIENT_CANFAIL,
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.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 = item->state.c;
-	struct session		*s = item->state.tflag.s;
-	struct winlink		*wl = item->state.tflag.wl;
-	struct window_pane	*wp = item->state.tflag.wp;
+	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");
@@ -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, 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

@@ -37,10 +37,8 @@ const struct cmd_entry cmd_display_panes_entry = {
 	.name = "display-panes",
 	.alias = "displayp",
 
-	.args = { "t:", 0, 1 },
-	.usage = CMD_TARGET_CLIENT_USAGE,
-
-	.tflag = CMD_CLIENT,
+	.args = { "bd:t:", 0, 1 },
+	.usage = "[-b] [-d duration] " CMD_TARGET_CLIENT_USAGE " [template]",
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_display_panes_exec
@@ -50,7 +48,14 @@ static enum cmd_retval
 cmd_display_panes_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args	*args = self->args;
-	struct client	*c = item->state.c;
+	struct client	*c;
+	struct session	*s;
+	u_int		 delay;
+	char		*cause;
+
+	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);
@@ -60,10 +65,25 @@ 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 '%%'");
+	if (args_has(args, 'b'))
+		c->identify_callback_item = NULL;
+	else
+		c->identify_callback_item = item;
 
-	server_client_set_identify(c);
+	if (args_has(args, 'd')) {
+		delay = args_strtonum(args, 'd', 0, UINT_MAX, &cause);
+		if (cause != NULL) {
+			cmdq_error(item, "delay %s", cause);
+			free(cause);
+			return (CMD_RETURN_ERROR);
+		}
+	} else
+		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
@@ -82,34 +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 (cause != NULL) {
-			new_item = cmdq_get_callback(cmd_display_panes_error,
-			    cause);
-		} else
-			new_item = NULL;
-	} else {
+	if (cmdlist == NULL && cause != NULL)
+		new_item = cmdq_get_callback(cmd_display_panes_error, cause);
+	else if (cmdlist == NULL)
+		new_item = NULL;
+	else {
 		new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
 		cmd_list_free(cmdlist);
 	}
 
-	if (new_item != NULL)
-		cmdq_append(c, new_item);
+	if (new_item != NULL) {
+		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

@@ -18,9 +18,7 @@
 
 #include <sys/types.h>
 
-#include <fnmatch.h>
 #include <stdlib.h>
-#include <string.h>
 
 #include "tmux.h"
 
@@ -28,213 +26,71 @@
  * Find window containing text.
  */
 
-#define FIND_WINDOW_TEMPLATE					\
-	"#{window_index}: #{window_name} "			\
-	"[#{window_width}x#{window_height}] "			\
-	"(#{window_panes} panes) #{window_find_matches}"
-
 static enum cmd_retval	cmd_find_window_exec(struct cmd *, struct cmdq_item *);
 
-static void		cmd_find_window_callback(struct window_choose_data *);
-
-/* Flags for determining matching behavior. */
-#define CMD_FIND_WINDOW_BY_TITLE   0x1
-#define CMD_FIND_WINDOW_BY_CONTENT 0x2
-#define CMD_FIND_WINDOW_BY_NAME    0x4
-
-#define CMD_FIND_WINDOW_ALL		\
-	(CMD_FIND_WINDOW_BY_TITLE |	\
-	 CMD_FIND_WINDOW_BY_CONTENT |	\
-	 CMD_FIND_WINDOW_BY_NAME)
-
 const struct cmd_entry cmd_find_window_entry = {
 	.name = "find-window",
 	.alias = "findw",
 
-	.args = { "F:CNt:T", 1, 4 },
-	.usage = "[-CNT] [-F format] " CMD_TARGET_WINDOW_USAGE " match-string",
+	.args = { "CNt:TZ", 1, 1 },
+	.usage = "[-CNTZ] " CMD_TARGET_PANE_USAGE " match-string",
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_find_window_exec
 };
 
-struct cmd_find_window_data {
-	struct winlink	*wl;
-	char		*list_ctx;
-	u_int		 pane_id;
-	TAILQ_ENTRY(cmd_find_window_data) entry;
-};
-TAILQ_HEAD(cmd_find_window_list, cmd_find_window_data);
-
-static u_int	cmd_find_window_match_flags(struct args *);
-static void	cmd_find_window_match(struct cmd_find_window_list *, int,
-		    struct winlink *, const char *, const char *);
-
-static u_int
-cmd_find_window_match_flags(struct args *args)
-{
-	u_int	match_flags = 0;
-
-	/* Turn on flags based on the options. */
-	if (args_has(args, 'T'))
-		match_flags |= CMD_FIND_WINDOW_BY_TITLE;
-	if (args_has(args, 'C'))
-		match_flags |= CMD_FIND_WINDOW_BY_CONTENT;
-	if (args_has(args, 'N'))
-		match_flags |= CMD_FIND_WINDOW_BY_NAME;
-
-	/* If none of the flags were set, default to matching anything. */
-	if (match_flags == 0)
-		match_flags = CMD_FIND_WINDOW_ALL;
-
-	return (match_flags);
-}
-
-static void
-cmd_find_window_match(struct cmd_find_window_list *find_list,
-    int match_flags, struct winlink *wl, const char *str,
-    const char *searchstr)
-{
-	struct cmd_find_window_data	*find_data;
-	struct window_pane		*wp;
-	u_int				 i, line;
-	char				*sres;
-
-	find_data = xcalloc(1, sizeof *find_data);
-
-	i = 0;
-	TAILQ_FOREACH(wp, &wl->window->panes, entry) {
-		i++;
-
-		if ((match_flags & CMD_FIND_WINDOW_BY_NAME) &&
-		    fnmatch(searchstr, wl->window->name, 0) == 0) {
-			find_data->list_ctx = xstrdup("");
-			break;
-		}
-
-		if ((match_flags & CMD_FIND_WINDOW_BY_TITLE) &&
-		    fnmatch(searchstr, wp->base.title, 0) == 0) {
-			xasprintf(&find_data->list_ctx,
-			    "pane %u title: \"%s\"", i - 1, wp->base.title);
-			break;
-		}
-
-		if (match_flags & CMD_FIND_WINDOW_BY_CONTENT &&
-		    (sres = window_pane_search(wp, str, &line)) != NULL) {
-			xasprintf(&find_data->list_ctx,
-			    "pane %u line %u: \"%s\"", i - 1, line + 1, sres);
-			free(sres);
-			break;
-		}
-	}
-
-	if (find_data->list_ctx != NULL) {
-		find_data->wl = wl;
-		find_data->pane_id = i - 1;
-		TAILQ_INSERT_TAIL(find_list, find_data, entry);
-	} else
-		free(find_data);
-}
-
 static enum cmd_retval
 cmd_find_window_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct args			*args = self->args;
-	struct client			*c = item->state.c;
-	struct window_choose_data	*cdata;
-	struct session			*s = item->state.tflag.s;
-	struct winlink			*wl = item->state.tflag.wl, *wm;
-	struct cmd_find_window_list	 find_list;
-	struct cmd_find_window_data	*find_data;
-	struct cmd_find_window_data	*find_data1;
-	char				*str, *searchstr;
-	const char			*template;
-	u_int				 i, match_flags;
+	struct args		*args = self->args, *new_args;
+	struct window_pane	*wp = item->target.wp;
+	const char		*s = args->argv[0];
+	char			*filter, *argv = { NULL };
+	int			 C, N, T;
 
-	if (c == NULL) {
-		cmdq_error(item, "no client available");
-		return (CMD_RETURN_ERROR);
-	}
+	C = args_has(args, 'C');
+	N = args_has(args, 'N');
+	T = args_has(args, 'T');
 
-	if ((template = args_get(args, 'F')) == NULL)
-		template = FIND_WINDOW_TEMPLATE;
+	if (!C && !N && !T)
+		C = N = T = 1;
 
-	match_flags = cmd_find_window_match_flags(args);
-	str = args->argv[0];
+	if (C && N && T) {
+		xasprintf(&filter,
+		    "#{||:"
+		    "#{C:%s},#{||:#{m:*%s*,#{window_name}},"
+		    "#{m:*%s*,#{pane_title}}}}",
+		    s, s, s);
+	} else if (C && N) {
+		xasprintf(&filter,
+		    "#{||:#{C:%s},#{m:*%s*,#{window_name}}}",
+		    s, s);
+	} else if (C && T) {
+		xasprintf(&filter,
+		    "#{||:#{C:%s},#{m:*%s*,#{pane_title}}}",
+		    s, s);
+	} else if (N && T) {
+		xasprintf(&filter,
+		    "#{||:#{m:*%s*,#{window_name}},#{m:*%s*,#{pane_title}}}",
+		    s, s);
+	} else if (C)
+		xasprintf(&filter, "#{C:%s}", s);
+	else if (N)
+		xasprintf(&filter, "#{m:*%s*,#{window_name}}", s);
+	else
+		xasprintf(&filter, "#{m:*%s*,#{pane_title}}", s);
 
-	TAILQ_INIT(&find_list);
+	new_args = args_parse("", 1, &argv);
+	if (args_has(args, 'Z'))
+		args_set(new_args, 'Z', NULL);
+	args_set(new_args, 'f', filter);
 
-	xasprintf(&searchstr, "*%s*", str);
-	RB_FOREACH(wm, winlinks, &s->windows)
-	    cmd_find_window_match(&find_list, match_flags, wm, str, searchstr);
-	free(searchstr);
+	window_pane_set_mode(wp, &window_tree_mode, &item->target, new_args);
 
-	if (TAILQ_EMPTY(&find_list)) {
-		cmdq_error(item, "no windows matching: %s", str);
-		return (CMD_RETURN_ERROR);
-	}
+	args_free(new_args);
+	free(filter);
 
-	if (TAILQ_NEXT(TAILQ_FIRST(&find_list), entry) == NULL) {
-		if (session_select(s, TAILQ_FIRST(&find_list)->wl->idx) == 0)
-			server_redraw_session(s);
-		recalculate_sizes();
-		goto out;
-	}
-
-	if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
-		goto out;
-
-	i = 0;
-	TAILQ_FOREACH(find_data, &find_list, entry) {
-		cdata = window_choose_data_create(TREE_OTHER, c, c->session);
-		cdata->idx = find_data->wl->idx;
-		cdata->wl = find_data->wl;
-
-		cdata->ft_template = xstrdup(template);
-		cdata->pane_id = find_data->pane_id;
-
-		format_add(cdata->ft, "line", "%u", i);
-		format_add(cdata->ft, "window_find_matches", "%s",
-		    find_data->list_ctx);
-		format_defaults(cdata->ft, NULL, s, find_data->wl, NULL);
-
-		window_choose_add(wl->window->active, cdata);
-
-		i++;
-	}
-
-	window_choose_ready(wl->window->active, 0, cmd_find_window_callback);
-
-out:
-	TAILQ_FOREACH_SAFE(find_data, &find_list, entry, find_data1) {
-		free(find_data->list_ctx);
-		TAILQ_REMOVE(&find_list, find_data, entry);
-		free(find_data);
-	}
 	return (CMD_RETURN_NORMAL);
 }
-
-static void
-cmd_find_window_callback(struct window_choose_data *cdata)
-{
-	struct session		*s;
-	struct window_pane	*wp;
-
-	if (cdata == NULL)
-		return;
-
-	s = cdata->start_session;
-	if (!session_alive(s))
-		return;
-
-	wp = window_pane_at_index(cdata->wl->window, cdata->pane_id);
-	if (wp != NULL && window_pane_visible(wp))
-		window_set_active_pane(cdata->wl->window, wp);
-
-	if (session_select(s, cdata->idx) == 0) {
-		server_redraw_session(s);
-		recalculate_sizes();
-	}
-}

cmd-find.c

@@ -26,21 +26,15 @@
 
 #include "tmux.h"
 
-static struct session *cmd_find_try_TMUX(struct client *, struct window *);
-static int	cmd_find_client_better(struct client *, struct client *);
-static struct client *cmd_find_best_client(struct client **, u_int);
 static int	cmd_find_session_better(struct session *, struct session *,
 		    int);
 static struct session *cmd_find_best_session(struct session **, u_int, int);
 static int	cmd_find_best_session_with_window(struct cmd_find_state *);
 static int	cmd_find_best_winlink_with_window(struct cmd_find_state *);
 
-static int	cmd_find_current_session_with_client(struct cmd_find_state *);
-static int	cmd_find_current_session(struct cmd_find_state *);
-static struct client *cmd_find_current_client(struct cmdq_item *);
-
 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 *,
@@ -83,7 +77,7 @@ static const char *cmd_find_pane_table[][2] = {
 
 /* Get session from TMUX if present. */
 static struct session *
-cmd_find_try_TMUX(struct client *c, struct window *w)
+cmd_find_try_TMUX(struct client *c)
 {
 	struct environ_entry	*envent;
 	char			 tmp[256];
@@ -99,15 +93,33 @@ cmd_find_try_TMUX(struct client *c, struct window *w)
 		return (NULL);
 	if (pid != getpid())
 		return (NULL);
-	log_debug("client %p TMUX is %s (session @%u)", c, envent->value,
-	    session);
+	log_debug("%s: client %p TMUX %s (session $%u)", __func__, c,
+	    envent->value, session);
 
 	s = session_find_by_id(session);
-	if (s == NULL || (w != NULL && !session_has(s, w)))
-		return (NULL);
+	if (s != NULL)
+		log_debug("%s: session $%u still exists", __func__, s->id);
 	return (s);
 }
 
+/* Find pane containing client if any. */
+static struct window_pane *
+cmd_find_inside_pane(struct client *c)
+{
+	struct window_pane	*wp;
+
+	if (c == NULL)
+		return (NULL);
+
+	RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
+		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);
+}
+
 /* Is this client better? */
 static int
 cmd_find_client_better(struct client *c, struct client *than)
@@ -117,28 +129,23 @@ cmd_find_client_better(struct client *c, struct client *than)
 	return (timercmp(&c->activity_time, &than->activity_time, >));
 }
 
-/* Find best client from a list, or all if list is NULL. */
-static struct client *
-cmd_find_best_client(struct client **clist, u_int csize)
+/* Find best client for session. */
+struct client *
+cmd_find_best_client(struct session *s)
 {
 	struct client	*c_loop, *c;
-	u_int		 i;
+
+	if (s->attached == 0)
+		s = NULL;
 
 	c = NULL;
-	if (clist != NULL) {
-		for (i = 0; i < csize; i++) {
-			if (clist[i]->session == NULL)
-				continue;
-			if (cmd_find_client_better(clist[i], c))
-				c = clist[i];
-		}
-	} else {
-		TAILQ_FOREACH(c_loop, &clients, entry) {
-			if (c_loop->session == NULL)
-				continue;
-			if (cmd_find_client_better(c_loop, c))
-				c = c_loop;
-		}
+	TAILQ_FOREACH(c_loop, &clients, entry) {
+		if (c_loop->session == NULL)
+			continue;
+		if (s != NULL && c_loop->session != s)
+			continue;
+		if (cmd_find_client_better(c_loop, c))
+			c = c_loop;
 	}
 	return (c);
 }
@@ -152,10 +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);
-		if (attached && (s->flags & SESSION_UNATTACHED))
+		attached = (than->attached != 0);
+		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, >));
@@ -168,6 +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++) {
@@ -191,11 +200,7 @@ cmd_find_best_session_with_window(struct cmd_find_state *fs)
 	u_int		  ssize;
 	struct session	 *s;
 
-	if (fs->item != NULL && fs->item->client != NULL) {
-		fs->s = cmd_find_try_TMUX(fs->item->client, fs->w);
-		if (fs->s != NULL)
-			return (cmd_find_best_winlink_with_window(fs));
-	}
+	log_debug("%s: window is @%u", __func__, fs->w->id);
 
 	ssize = 0;
 	RB_FOREACH(s, sessions, &sessions) {
@@ -218,7 +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
@@ -226,6 +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;
@@ -244,146 +251,6 @@ cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
 	return (0);
 }
 
-/* Find current session when we have an unattached client. */
-static int
-cmd_find_current_session_with_client(struct cmd_find_state *fs)
-{
-	struct window_pane	*wp;
-
-	/*
-	 * If this is running in a pane, we can use that to limit the list of
-	 * sessions to those containing that pane (we still use the current
-	 * window in the best session).
-	 */
-	if (fs->item != NULL) {
-		RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
-			if (strcmp(wp->tty, fs->item->client->ttyname) == 0)
-				break;
-		}
-	} else
-		wp = NULL;
-
-	/* Not running in a pane. We know nothing. Find the best session. */
-	if (wp == NULL)
-		goto unknown_pane;
-
-	/* Find the best session and winlink containing this pane. */
-	fs->w = wp->window;
-	if (cmd_find_best_session_with_window(fs) != 0) {
-		if (wp != NULL) {
-			/*
-			 * The window may have been destroyed but the pane
-			 * still on all_window_panes due to something else
-			 * holding a reference.
-			 */
-			goto unknown_pane;
-		}
-		return (-1);
-	}
-
-	/* Use the current window and pane from this session. */
-	fs->wl = fs->s->curw;
-	fs->idx = fs->wl->idx;
-	fs->w = fs->wl->window;
-	fs->wp = fs->w->active;
-
-	return (0);
-
-unknown_pane:
-	fs->s = NULL;
-	if (fs->item != NULL)
-		fs->s = cmd_find_try_TMUX(fs->item->client, NULL);
-	if (fs->s == NULL)
-		fs->s = cmd_find_best_session(NULL, 0, fs->flags);
-	if (fs->s == NULL)
-		return (-1);
-	fs->wl = fs->s->curw;
-	fs->idx = fs->wl->idx;
-	fs->w = fs->wl->window;
-	fs->wp = fs->w->active;
-
-	return (0);
-}
-
-/*
- * Work out the best current state. If this function succeeds, the state is
- * guaranteed to be completely filled in.
- */
-static int
-cmd_find_current_session(struct cmd_find_state *fs)
-{
-	/* If we know the current client, use it. */
-	if (fs->item != NULL && fs->item->client != NULL) {
-		log_debug("%s: have client %p%s", __func__, fs->item->client,
-		    fs->item->client->session == NULL ? "" : " (with session)");
-		if (fs->item->client->session == NULL)
-			return (cmd_find_current_session_with_client(fs));
-		fs->s = fs->item->client->session;
-		fs->wl = fs->s->curw;
-		fs->idx = fs->wl->idx;
-		fs->w = fs->wl->window;
-		fs->wp = fs->w->active;
-		return (0);
-	}
-
-	/* We know nothing, find the best session and client. */
-	fs->s = cmd_find_best_session(NULL, 0, fs->flags);
-	if (fs->s == NULL)
-		return (-1);
-	fs->wl = fs->s->curw;
-	fs->idx = fs->wl->idx;
-	fs->w = fs->wl->window;
-	fs->wp = fs->w->active;
-
-	return (0);
-}
-
-/* Work out the best current client. */
-static struct client *
-cmd_find_current_client(struct cmdq_item *item)
-{
-	struct cmd_find_state	 current;
-	struct session		*s;
-	struct client		*c, **clist = NULL;
-	u_int		 	 csize;
-
-	/* If the queue client has a session, use it. */
-	if (item->client != NULL && item->client->session != NULL) {
-		log_debug("%s: using item %p client %p", __func__, item,
-		    item->client);
-		return (item->client);
-	}
-
-	/* Otherwise find the current session. */
-	cmd_find_clear_state(&current, item, 0);
-	if (cmd_find_current_session(&current) != 0)
-		return (NULL);
-
-	/* If it is attached, find the best of it's clients. */
-	s = current.s;
-	log_debug("%s: current session $%u %s", __func__, s->id, s->name);
-	if (~s->flags & SESSION_UNATTACHED) {
-		csize = 0;
-		TAILQ_FOREACH(c, &clients, entry) {
-			if (c->session != s)
-				continue;
-			clist = xreallocarray(clist, csize + 1, sizeof *clist);
-			clist[csize++] = c;
-		}
-		if (csize != 0) {
-			c = cmd_find_best_client(clist, csize);
-			if (c != NULL) {
-				free(clist);
-				return (c);
-			}
-		}
-		free(clist);
-	}
-
-	/* Otherwise pick best of all clients. */
-	return (cmd_find_best_client(NULL, 0));
-}
-
 /* Maps string in table. */
 static const char *
 cmd_find_map_table(const char *table[][2], const char *s)
@@ -537,7 +404,7 @@ cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
 					return (-1);
 				fs->idx = s->curw->idx + n;
 			} else {
-				if (n < s->curw->idx)
+				if (n > s->curw->idx)
 					return (-1);
 				fs->idx = s->curw->idx - n;
 			}
@@ -584,15 +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);
+			}
 		}
 	}
 
@@ -657,7 +525,7 @@ cmd_find_get_pane(struct cmd_find_state *fs, const char *pane, int only)
 	/* Check for pane ids starting with %. */
 	if (*pane == '%') {
 		fs->wp = window_pane_find_by_id_str(pane);
-		if (fs->wp == NULL || window_pane_outside(fs->wp))
+		if (fs->wp == NULL)
 			return (-1);
 		fs->w = fs->wp->window;
 		return (cmd_find_best_session_with_window(fs));
@@ -694,7 +562,7 @@ cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
 	/* Check for pane ids starting with %. */
 	if (*pane == '%') {
 		fs->wp = window_pane_find_by_id_str(pane);
-		if (fs->wp == NULL || window_pane_outside(fs->wp))
+		if (fs->wp == NULL)
 			return (-1);
 		fs->w = fs->wp->window;
 		return (cmd_find_best_winlink_with_window(fs));
@@ -726,7 +594,7 @@ cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
 	/* Check for pane ids starting with %. */
 	if (*pane == '%') {
 		fs->wp = window_pane_find_by_id_str(pane);
-		if (fs->wp == NULL || window_pane_outside(fs->wp))
+		if (fs->wp == NULL)
 			return (-1);
 		if (fs->wp->window != fs->w)
 			return (-1);
@@ -735,30 +603,28 @@ cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
 
 	/* Try special characters. */
 	if (strcmp(pane, "!") == 0) {
-		if (fs->w->last == NULL)
-			return (-1);
 		fs->wp = fs->w->last;
-		if (fs->wp == NULL || window_pane_outside(fs->wp))
+		if (fs->wp == NULL)
 			return (-1);
 		return (0);
 	} else if (strcmp(pane, "{up-of}") == 0) {
 		fs->wp = window_pane_find_up(fs->w->active);
-		if (fs->wp == NULL || window_pane_outside(fs->wp))
+		if (fs->wp == NULL)
 			return (-1);
 		return (0);
 	} else if (strcmp(pane, "{down-of}") == 0) {
 		fs->wp = window_pane_find_down(fs->w->active);
-		if (fs->wp == NULL || window_pane_outside(fs->wp))
+		if (fs->wp == NULL)
 			return (-1);
 		return (0);
 	} else if (strcmp(pane, "{left-of}") == 0) {
 		fs->wp = window_pane_find_left(fs->w->active);
-		if (fs->wp == NULL || window_pane_outside(fs->wp))
+		if (fs->wp == NULL)
 			return (-1);
 		return (0);
 	} else if (strcmp(pane, "{right-of}") == 0) {
 		fs->wp = window_pane_find_right(fs->w->active);
-		if (fs->wp == NULL || window_pane_outside(fs->wp))
+		if (fs->wp == NULL)
 			return (-1);
 		return (0);
 	}
@@ -774,7 +640,7 @@ cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
 			fs->wp = window_pane_next_by_number(fs->w, wp, n);
 		else
 			fs->wp = window_pane_previous_by_number(fs->w, wp, n);
-		if (fs->wp != NULL && !window_pane_outside(fs->wp))
+		if (fs->wp != NULL)
 			return (0);
 	}
 
@@ -782,13 +648,13 @@ cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
 	idx = strtonum(pane, 0, INT_MAX, &errstr);
 	if (errstr == NULL) {
 		fs->wp = window_pane_at_index(fs->w, idx);
-		if (fs->wp != NULL && !window_pane_outside(fs->wp))
+		if (fs->wp != NULL)
 			return (0);
 	}
 
 	/* Try as a description. */
 	fs->wp = window_find_string(fs->w, pane);
-	if (fs->wp != NULL && !window_pane_outside(fs->wp))
+	if (fs->wp != NULL)
 		return (0);
 
 	return (-1);
@@ -796,18 +662,16 @@ cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
 
 /* Clear state. */
 void
-cmd_find_clear_state(struct cmd_find_state *fs, struct cmdq_item *item,
-    int flags)
+cmd_find_clear_state(struct cmd_find_state *fs, int flags)
 {
 	memset(fs, 0, sizeof *fs);
 
-	fs->item = item;
 	fs->flags = flags;
 
 	fs->idx = -1;
 }
 
-/* Check if state is empty/ */
+/* Check if state is empty. */
 int
 cmd_find_empty_state(struct cmd_find_state *fs)
 {
@@ -838,9 +702,7 @@ cmd_find_valid_state(struct cmd_find_state *fs)
 	if (fs->w != fs->wl->window)
 		return (0);
 
-	if (!window_has_pane(fs->w, fs->wp))
-		return (0);
-	return (!window_pane_outside(fs->wp));
+	return (window_has_pane(fs->w, fs->wp));
 }
 
 /* Copy a state. */
@@ -855,11 +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) {
@@ -878,10 +740,10 @@ cmd_find_log_state(const char *prefix, struct cmd_find_state *fs)
 }
 
 /* Find state from a session. */
-int
-cmd_find_from_session(struct cmd_find_state *fs, struct session *s)
+void
+cmd_find_from_session(struct cmd_find_state *fs, struct session *s, int flags)
 {
-	cmd_find_clear_state(fs, NULL, 0);
+	cmd_find_clear_state(fs, flags);
 
 	fs->s = s;
 	fs->wl = fs->s->curw;
@@ -889,36 +751,35 @@ cmd_find_from_session(struct cmd_find_state *fs, struct session *s)
 	fs->wp = fs->w->active;
 
 	cmd_find_log_state(__func__, fs);
-	return (0);
 }
 
 /* Find state from a winlink. */
-int
-cmd_find_from_winlink(struct cmd_find_state *fs, struct session *s,
-    struct winlink *wl)
+void
+cmd_find_from_winlink(struct cmd_find_state *fs, struct winlink *wl, int flags)
 {
-	cmd_find_clear_state(fs, NULL, 0);
+	cmd_find_clear_state(fs, flags);
 
-	fs->s = s;
+	fs->s = wl->session;
 	fs->wl = wl;
 	fs->w = wl->window;
 	fs->wp = wl->window->active;
 
 	cmd_find_log_state(__func__, fs);
-	return (0);
 }
 
 /* Find state from a session and window. */
 int
 cmd_find_from_session_window(struct cmd_find_state *fs, struct session *s,
-    struct window *w)
+    struct window *w, int flags)
 {
-	cmd_find_clear_state(fs, NULL, 0);
+	cmd_find_clear_state(fs, flags);
 
 	fs->s = s;
 	fs->w = w;
-	if (cmd_find_best_winlink_with_window(fs) != 0)
+	if (cmd_find_best_winlink_with_window(fs) != 0) {
+		cmd_find_clear_state(fs, flags);
 		return (-1);
+	}
 	fs->wp = fs->w->active;
 
 	cmd_find_log_state(__func__, fs);
@@ -927,28 +788,46 @@ cmd_find_from_session_window(struct cmd_find_state *fs, struct session *s,
 
 /* Find state from a window. */
 int
-cmd_find_from_window(struct cmd_find_state *fs, struct window *w)
+cmd_find_from_window(struct cmd_find_state *fs, struct window *w, int flags)
 {
-	cmd_find_clear_state(fs, NULL, 0);
+	cmd_find_clear_state(fs, flags);
 
 	fs->w = w;
-	if (cmd_find_best_session_with_window(fs) != 0)
+	if (cmd_find_best_session_with_window(fs) != 0) {
+		cmd_find_clear_state(fs, flags);
 		return (-1);
-	if (cmd_find_best_winlink_with_window(fs) != 0)
+	}
+	if (cmd_find_best_winlink_with_window(fs) != 0) {
+		cmd_find_clear_state(fs, flags);
 		return (-1);
+	}
 	fs->wp = fs->w->active;
 
 	cmd_find_log_state(__func__, fs);
 	return (0);
 }
 
+/* Find state from a winlink and pane. */
+void
+cmd_find_from_winlink_pane(struct cmd_find_state *fs, struct winlink *wl,
+    struct window_pane *wp, int flags)
+{
+	cmd_find_clear_state(fs, flags);
+
+	fs->s = wl->session;
+	fs->wl = wl;
+	fs->idx = fs->wl->idx;
+	fs->w = fs->wl->window;
+	fs->wp = wp;
+
+	cmd_find_log_state(__func__, fs);
+}
+
 /* Find state from a pane. */
 int
-cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp)
+cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp, int flags)
 {
-	if (cmd_find_from_window(fs, wp->window) != 0)
-		return (-1);
-	if (window_pane_outside(wp))
+	if (cmd_find_from_window(fs, wp->window, flags) != 0)
 		return (-1);
 	fs->wp = wp;
 
@@ -956,56 +835,198 @@ cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp)
 	return (0);
 }
 
-/* Find current state. */
+/* Find state from nothing. */
 int
-cmd_find_current(struct cmd_find_state *fs, struct cmdq_item *item, int flags)
+cmd_find_from_nothing(struct cmd_find_state *fs, int flags)
 {
-	cmd_find_clear_state(fs, item, flags);
-	if (cmd_find_current_session(fs) != 0) {
-		if (~flags & CMD_FIND_QUIET)
-			cmdq_error(item, "no current session");
+	cmd_find_clear_state(fs, flags);
+
+	fs->s = cmd_find_best_session(NULL, 0, flags);
+	if (fs->s == NULL) {
+		cmd_find_clear_state(fs, flags);
 		return (-1);
 	}
+	fs->wl = fs->s->curw;
+	fs->idx = fs->wl->idx;
+	fs->w = fs->wl->window;
+	fs->wp = fs->w->active;
+
+	cmd_find_log_state(__func__, fs);
 	return (0);
 }
 
+/* Find state from mouse. */
+int
+cmd_find_from_mouse(struct cmd_find_state *fs, struct mouse_event *m, int flags)
+{
+	cmd_find_clear_state(fs, flags);
+
+	if (!m->valid)
+		return (-1);
+
+	fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
+	if (fs->wp == NULL) {
+		cmd_find_clear_state(fs, flags);
+		return (-1);
+	}
+	fs->w = fs->wl->window;
+
+	cmd_find_log_state(__func__, fs);
+	return (0);
+}
+
+/* Find state from client. */
+int
+cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
+{
+	struct session		*s;
+	struct winlink		*wl;
+	struct window_pane	*wp;
+
+	/* If no client, treat as from nothing. */
+	if (c == NULL)
+		return (cmd_find_from_nothing(fs, flags));
+
+	/* If this is an attached client, all done. */
+	if (c->session != NULL) {
+		cmd_find_from_session(fs, c->session, flags);
+		return (0);
+	}
+	cmd_find_clear_state(fs, flags);
+
+	/*
+	 * If this is an unattached client running in a pane, we can use that
+	 * to limit the list of sessions to those containing that pane.
+	 */
+	wp = cmd_find_inside_pane(c);
+	if (wp == NULL)
+		goto unknown_pane;
+
+	/* If we have a session in TMUX, see if it has this pane. */
+	s = cmd_find_try_TMUX(c);
+	if (s != NULL) {
+		RB_FOREACH(wl, winlinks, &s->windows) {
+			if (window_has_pane(wl->window, wp))
+				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;
+			fs->wp = fs->w->active; /* use active pane */
+
+			cmd_find_log_state(__func__, fs);
+			return (0);
+		} else {
+			log_debug("%s: session $%u does not have pane %%%u",
+			    __func__, s->id, wp->id);
+		}
+	}
+
+	/*
+	 * Don't have a session, or it doesn't have this pane. Try all
+	 * sessions.
+	 */
+	fs->w = wp->window;
+	if (cmd_find_best_session_with_window(fs) != 0) {
+		/*
+		 * The window may have been destroyed but the pane
+		 * still on all_window_panes due to something else
+		 * holding a reference.
+		 */
+		goto unknown_pane;
+	}
+	fs->wl = fs->s->curw;
+	fs->w = fs->wl->window;
+	fs->wp = fs->w->active; /* use active pane */
+
+	cmd_find_log_state(__func__, fs);
+	return (0);
+
+unknown_pane:
+	/*
+	 * We're not running in a known pane, but maybe this client has TMUX
+	 * in the environment. That'd give us a session.
+	 */
+	s = cmd_find_try_TMUX(c);
+	if (s != NULL) {
+		cmd_find_from_session(fs, s, flags);
+		return (0);
+	}
+
+	/* Otherwise we need to guess. */
+	return (cmd_find_from_nothing(fs, flags));
+}
+
 /*
  * Split target into pieces and resolve for the given type. Fills in the given
  * state. Returns 0 on success or -1 on error.
  */
 int
-cmd_find_target(struct cmd_find_state *fs, struct cmd_find_state *current,
-    struct cmdq_item *item, const char *target, enum cmd_find_type type,
-    int flags)
+cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
+    const char *target, enum cmd_find_type type, int flags)
 {
 	struct mouse_event	*m;
-	char			*colon, *period, *copy = NULL;
-	const char		*session, *window, *pane;
+	struct cmd_find_state	 current;
+	char			*colon, *period, *copy = NULL, tmp[256];
+	const char		*session, *window, *pane, *s;
 	int			 window_only = 0, pane_only = 0;
 
+	/* Can fail flag implies quiet. */
+	if (flags & CMD_FIND_CANFAIL)
+		flags |= CMD_FIND_QUIET;
+
 	/* Log the arguments. */
-	if (target == NULL)
-		log_debug("%s: target none, type %d", __func__, type);
+	if (type == CMD_FIND_PANE)
+		s = "pane";
+	else if (type == CMD_FIND_WINDOW)
+		s = "window";
+	else if (type == CMD_FIND_SESSION)
+		s = "session";
 	else
-		log_debug("%s: target %s, type %d", __func__, target, type);
-	log_debug("%s: item %p, flags %#x", __func__, item, flags);
+		s = "unknown";
+	*tmp = '\0';
+	if (flags & CMD_FIND_PREFER_UNATTACHED)
+		strlcat(tmp, "PREFER_UNATTACHED,", sizeof tmp);
+	if (flags & CMD_FIND_QUIET)
+		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, item, flags);
+	cmd_find_clear_state(fs, flags);
 
 	/* Find current state. */
 	if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED)) {
 		fs->current = &marked_pane;
 		log_debug("%s: current is marked pane", __func__);
-	} else if (cmd_find_valid_state(&item->current)) {
-		fs->current = &item->current;
+	} else if (cmd_find_valid_state(&item->shared->current)) {
+		fs->current = &item->shared->current;
 		log_debug("%s: current is from queue", __func__);
+	} else if (cmd_find_from_client(&current, item->client, flags) == 0) {
+		fs->current = &current;
+		log_debug("%s: current is from client", __func__);
 	} else {
-		fs->current = current;
-		log_debug("%s: current is from argument", __func__);
+		if (~flags & CMD_FIND_QUIET)
+			cmdq_error(item, "no current target");
+		goto error;
 	}
-	if (!cmd_find_empty_state(fs->current) &&
-	    !cmd_find_valid_state(fs->current))
+	if (!cmd_find_valid_state(fs->current))
 		fatalx("invalid current find state");
 
 	/* An empty or NULL target is the current. */
@@ -1014,11 +1035,11 @@ cmd_find_target(struct cmd_find_state *fs, struct cmd_find_state *current,
 
 	/* Mouse target is a plain = or {mouse}. */
 	if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
-		m = &item->mouse;
+		m = &item->shared->mouse;
 		switch (type) {
 		case CMD_FIND_PANE:
 			fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
-			if (fs->wp != NULL && !window_pane_outside(fs->wp))
+			if (fs->wp != NULL)
 				fs->w = fs->wl->window;
 			break;
 		case CMD_FIND_WINDOW:
@@ -1125,9 +1146,16 @@ cmd_find_target(struct cmd_find_state *fs, struct cmd_find_state *current,
 	if (pane != NULL)
 		pane = cmd_find_map_table(cmd_find_pane_table, pane);
 
-	log_debug("target %s (flags %#x): session=%s, window=%s, pane=%s",
-	    target, flags, session == NULL ? "none" : session,
-	    window == NULL ? "none" : window, pane == NULL ? "none" : pane);
+	if (session != NULL || window != NULL || pane != NULL) {
+		log_debug("%s: target %s is %s%s%s%s%s%s",
+		    __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)) {
@@ -1156,7 +1184,8 @@ cmd_find_target(struct cmd_find_state *fs, struct cmd_find_state *current,
 			/* 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;
 		}
 
@@ -1196,7 +1225,8 @@ cmd_find_target(struct cmd_find_state *fs, struct cmd_find_state *current,
 		/* 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;
 	}
 
@@ -1220,6 +1250,8 @@ error:
 	log_debug("%s: error", __func__);
 
 	free(copy);
+	if (flags & CMD_FIND_CANFAIL)
+		return (0);
 	return (-1);
 
 found:
@@ -1231,20 +1263,49 @@ 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;
 }
 
+/* Find the current client. */
+static struct client *
+cmd_find_current_client(struct cmdq_item *item, int quiet)
+{
+	struct client		*c;
+	struct session		*s;
+	struct window_pane	*wp;
+	struct cmd_find_state	 fs;
+
+	if (item->client != NULL && item->client->session != NULL)
+		return (item->client);
+
+	c = NULL;
+	if ((wp = cmd_find_inside_pane(item->client)) != NULL) {
+		cmd_find_clear_state(&fs, CMD_FIND_QUIET);
+		fs.w = wp->window;
+		if (cmd_find_best_session_with_window(&fs) == 0)
+			c = cmd_find_best_client(fs.s);
+	} else {
+		s = cmd_find_best_session(NULL, 0, CMD_FIND_QUIET);
+		if (s != NULL)
+			c = cmd_find_best_client(s);
+	}
+	if (c == NULL && !quiet)
+		cmdq_error(item, "no current client");
+	log_debug("%s: no target, return %p", __func__, c);
+	return (c);
+}
+
 /* Find the target client or report an error and return NULL. */
 struct client *
 cmd_find_client(struct cmdq_item *item, const char *target, int quiet)
@@ -1254,13 +1315,8 @@ cmd_find_client(struct cmdq_item *item, const char *target, int quiet)
 	size_t		 size;
 
 	/* A NULL argument means the current client. */
-	if (item != NULL && target == NULL) {
-		c = cmd_find_current_client(item);
-		if (c == NULL && !quiet)
-			cmdq_error(item, "no current client");
-		log_debug("%s: no target, return %p", __func__, c);
-		return (c);
-	}
+	if (target == NULL)
+		return (cmd_find_current_client(item, quiet));
 	copy = xstrdup(target);
 
 	/* Trim a single trailing colon if any. */
@@ -1287,7 +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

@@ -31,7 +31,6 @@
 
 static enum cmd_retval	cmd_if_shell_exec(struct cmd *, struct cmdq_item *);
 
-static enum cmd_retval	cmd_if_shell_error(struct cmdq_item *, void *);
 static void		cmd_if_shell_callback(struct job *);
 static void		cmd_if_shell_free(void *);
 
@@ -43,7 +42,7 @@ const struct cmd_entry cmd_if_shell_entry = {
 	.usage = "[-bF] " CMD_TARGET_PANE_USAGE " shell-command command "
 		 "[command]",
 
-	.tflag = CMD_PANE_CANFAIL,
+	.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
 
 	.flags = 0,
 	.exec = cmd_if_shell_exec
@@ -65,22 +64,15 @@ static enum cmd_retval
 cmd_if_shell_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args			*args = self->args;
+	struct cmdq_shared		*shared = item->shared;
 	struct cmd_if_shell_data	*cdata;
 	char				*shellcmd, *cmd, *cause;
 	struct cmd_list			*cmdlist;
 	struct cmdq_item		*new_item;
-	struct client			*c = item->state.c;
-	struct session			*s = item->state.tflag.s;
-	struct winlink			*wl = item->state.tflag.wl;
-	struct window_pane		*wp = item->state.tflag.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;
+	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;
 
 	shellcmd = format_single(item, args->argv[0], c, s, wl, wp);
 	if (args_has(args, 'F')) {
@@ -100,7 +92,7 @@ cmd_if_shell_exec(struct cmd *self, struct cmdq_item *item)
 			}
 			return (CMD_RETURN_ERROR);
 		}
-		new_item = cmdq_get_command(cmdlist, NULL, &item->mouse, 0);
+		new_item = cmdq_get_command(cmdlist, NULL, &shared->mouse, 0);
 		cmdq_insert_after(item, new_item);
 		cmd_list_free(cmdlist);
 		return (CMD_RETURN_NORMAL);
@@ -119,16 +111,22 @@ cmd_if_shell_exec(struct cmd *self, struct cmdq_item *item)
 		cdata->cmd_else = NULL;
 
 	cdata->client = item->client;
-	cdata->client->references++;
+	if (cdata->client != NULL)
+		cdata->client->references++;
 
 	if (!args_has(args, 'b'))
 		cdata->item = item;
 	else
 		cdata->item = NULL;
-	memcpy(&cdata->mouse, &item->mouse, sizeof cdata->mouse);
+	memcpy(&cdata->mouse, &shared->mouse, sizeof cdata->mouse);
 
-	job_run(shellcmd, s, cwd, cmd_if_shell_callback, cmd_if_shell_free,
-	    cdata);
+	if (job_run(shellcmd, s, server_client_get_cwd(item->client, s), NULL,
+	    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'))
@@ -136,28 +134,19 @@ cmd_if_shell_exec(struct cmd *self, struct cmdq_item *item)
 	return (CMD_RETURN_WAIT);
 }
 
-static enum cmd_retval
-cmd_if_shell_error(struct cmdq_item *item, void *data)
-{
-	char	*error = data;
-
-	cmdq_error(item, "%s", error);
-	free(error);
-
-	return (CMD_RETURN_NORMAL);
-}
-
 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;
@@ -166,10 +155,10 @@ cmd_if_shell_callback(struct job *job)
 
 	cmdlist = cmd_string_parse(cmd, file, line, &cause);
 	if (cmdlist == NULL) {
-		if (cause != NULL)
-			new_item = cmdq_get_callback(cmd_if_shell_error, cause);
-		else
-			new_item = NULL;
+		if (cause != NULL && cdata->item != NULL)
+			cmdq_error(cdata->item, "%s", cause);
+		free(cause);
+		new_item = NULL;
 	} else {
 		new_item = cmdq_get_command(cmdlist, NULL, &cdata->mouse, 0);
 		cmd_list_free(cmdlist);
@@ -192,7 +181,8 @@ cmd_if_shell_free(void *data)
 {
 	struct cmd_if_shell_data	*cdata = data;
 
-	server_client_unref(cdata->client);
+	if (cdata->client != NULL)
+		server_client_unref(cdata->client);
 
 	free(cdata->cmd_else);
 	free(cdata->cmd_if);

cmd-join-pane.c

@@ -37,8 +37,8 @@ const struct cmd_entry cmd_join_pane_entry = {
 	.args = { "bdhvp:l:s:t:", 0, 0 },
 	.usage = "[-bdhv] [-p percentage|-l size] " CMD_SRCDST_PANE_USAGE,
 
-	.sflag = CMD_PANE_MARKED,
-	.tflag = CMD_PANE,
+	.source = { 's', CMD_FIND_PANE, CMD_FIND_DEFAULT_MARKED },
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_join_pane_exec
@@ -51,8 +51,8 @@ const struct cmd_entry cmd_move_pane_entry = {
 	.args = { "bdhvp:l:s:t:", 0, 0 },
 	.usage = "[-bdhv] [-p percentage|-l size] " CMD_SRCDST_PANE_USAGE,
 
-	.sflag = CMD_PANE,
-	.tflag = CMD_PANE,
+	.source = { 's', CMD_FIND_PANE, 0 },
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_join_pane_exec
@@ -62,6 +62,7 @@ static enum cmd_retval
 cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
+	struct cmd_find_state	*current = &item->shared->current;
 	struct session		*dst_s;
 	struct winlink		*src_wl, *dst_wl;
 	struct window		*src_w, *dst_w;
@@ -77,15 +78,15 @@ cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 	else
 		not_same_window = 0;
 
-	dst_s = item->state.tflag.s;
-	dst_wl = item->state.tflag.wl;
-	dst_wp = item->state.tflag.wp;
+	dst_s = item->target.s;
+	dst_wl = item->target.wl;
+	dst_wp = item->target.wp;
 	dst_w = dst_wl->window;
 	dst_idx = dst_wl->idx;
 	server_unzoom_window(dst_w);
 
-	src_wl = item->state.sflag.wl;
-	src_wp = item->state.sflag.wp;
+	src_wl = item->source.wl;
+	src_wp = item->source.wp;
 	src_w = src_wl->window;
 	server_unzoom_window(src_w);
 
@@ -145,6 +146,7 @@ cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 	if (!args_has(args, 'd')) {
 		window_set_active_pane(dst_w, src_wp);
 		session_select(dst_s, dst_idx);
+		cmd_find_from_session(current, dst_s, 0);
 		server_redraw_session(dst_s);
 	} else
 		server_status_session(dst_s);

cmd-kill-pane.c

@@ -35,7 +35,7 @@ const struct cmd_entry cmd_kill_pane_entry = {
 	.args = { "at:", 0, 0 },
 	.usage = "[-a] " CMD_TARGET_PANE_USAGE,
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_kill_pane_exec
@@ -44,12 +44,11 @@ const struct cmd_entry cmd_kill_pane_entry = {
 static enum cmd_retval
 cmd_kill_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct winlink		*wl = item->state.tflag.wl;
-	struct window_pane	*loopwp, *tmpwp, *wp = item->state.tflag.wp;
-
-	server_unzoom_window(wl->window);
+	struct winlink		*wl = item->target.wl;
+	struct window_pane	*loopwp, *tmpwp, *wp = item->target.wp;
 
 	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_window(wl->window);
-		recalculate_sizes();
-	} else {
-		layout_close_pane(wp);
-		window_remove_pane(wl->window, wp);
-		server_redraw_window(wl->window);
-	}
+	server_kill_pane(wp);
 	return (CMD_RETURN_NORMAL);
 }

cmd-kill-session.c

@@ -36,7 +36,7 @@ const struct cmd_entry cmd_kill_session_entry = {
 	.args = { "aCt:", 0, 0 },
 	.usage = "[-aC] " CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = 0,
 	.exec = cmd_kill_session_exec
@@ -49,7 +49,7 @@ cmd_kill_session_exec(struct cmd *self, struct cmdq_item *item)
 	struct session	*s, *sloop, *stmp;
 	struct winlink	*wl;
 
-	s = item->state.tflag.s;
+	s = item->target.s;
 
 	if (args_has(args, 'C')) {
 		RB_FOREACH(wl, winlinks, &s->windows) {
@@ -61,12 +61,12 @@ cmd_kill_session_exec(struct cmd *self, struct cmdq_item *item)
 		RB_FOREACH_SAFE(sloop, sessions, &sessions, stmp) {
 			if (sloop != s) {
 				server_destroy_session(sloop);
-				session_destroy(sloop);
+				session_destroy(sloop, __func__);
 			}
 		}
 	} else {
 		server_destroy_session(s);
-		session_destroy(s);
+		session_destroy(s, __func__);
 	}
 	return (CMD_RETURN_NORMAL);
 }

cmd-kill-window.c

@@ -33,7 +33,7 @@ const struct cmd_entry cmd_kill_window_entry = {
 	.args = { "at:", 0, 0 },
 	.usage = "[-a] " CMD_TARGET_WINDOW_USAGE,
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = 0,
 	.exec = cmd_kill_window_exec
@@ -46,7 +46,7 @@ const struct cmd_entry cmd_unlink_window_entry = {
 	.args = { "kt:", 0, 0 },
 	.usage = "[-k] " CMD_TARGET_WINDOW_USAGE,
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = 0,
 	.exec = cmd_kill_window_exec
@@ -56,9 +56,9 @@ static enum cmd_retval
 cmd_kill_window_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct winlink		*wl = item->state.tflag.wl, *wl2, *wl3;
+	struct winlink		*wl = item->target.wl, *wl2, *wl3;
 	struct window		*w = wl->window;
-	struct session		*s = item->state.tflag.s;
+	struct session		*s = item->target.s;
 
 	if (self->entry == &cmd_unlink_window_entry) {
 		if (!args_has(self->args, 'k') && !session_is_linked(s, w)) {

cmd-list-buffers.c

@@ -57,7 +57,7 @@ cmd_list_buffers_exec(struct cmd *self, struct cmdq_item *item)
 
 	pb = NULL;
 	while ((pb = paste_walk(pb)) != NULL) {
-		ft = format_create(item, FORMAT_NONE, 0);
+		ft = format_create(item->client, item, FORMAT_NONE, 0);
 		format_defaults_paste_buffer(ft, pb);
 
 		line = format_expand(ft, template);

cmd-list-clients.c

@@ -42,7 +42,7 @@ const struct cmd_entry cmd_list_clients_entry = {
 	.args = { "F:t:", 0, 0 },
 	.usage = "[-F format] " CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = CMD_READONLY|CMD_AFTERHOOK,
 	.exec = cmd_list_clients_exec
@@ -60,7 +60,7 @@ cmd_list_clients_exec(struct cmd *self, struct cmdq_item *item)
 	char			*line;
 
 	if (args_has(args, 't'))
-		s = item->state.tflag.s;
+		s = item->target.s;
 	else
 		s = NULL;
 
@@ -72,7 +72,7 @@ cmd_list_clients_exec(struct cmd *self, struct cmdq_item *item)
 		if (c->session == NULL || (s != NULL && s != c->session))
 			continue;
 
-		ft = format_create(item, FORMAT_NONE, 0);
+		ft = format_create(item->client, item, FORMAT_NONE, 0);
 		format_add(ft, "line", "%u", idx);
 		format_defaults(ft, c, NULL, NULL, NULL);
 

cmd-list-keys.c

@@ -75,13 +75,17 @@ cmd_list_keys_exec(struct cmd *self, struct cmdq_item *item)
 
 	repeat = 0;
 	tablewidth = keywidth = 0;
-	RB_FOREACH(table, key_tables, &key_tables) {
-		if (tablename != NULL && strcmp(table->name, tablename) != 0)
+	table = key_bindings_first_table ();
+	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->can_repeat)
+			if (bd->flags & KEY_BINDING_REPEAT)
 				repeat = 1;
 
 			width = utf8_cstrwidth(table->name);
@@ -90,18 +94,25 @@ 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) {
-		if (tablename != NULL && strcmp(table->name, tablename) != 0)
+	table = key_bindings_first_table ();
+	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)
 				r = "";
-			else if (bd->can_repeat)
+			else if (bd->flags & KEY_BINDING_REPEAT)
 				r = "-r ";
 			else
 				r = "   ";
@@ -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);
@@ -144,7 +157,7 @@ cmd_list_keys_commands(struct cmd *self, struct cmdq_item *item)
 		    "#{command_list_usage}";
 	}
 
-	ft = format_create(item, FORMAT_NONE, 0);
+	ft = format_create(item->client, item, FORMAT_NONE, 0);
 	format_defaults(ft, NULL, NULL, NULL, NULL);
 
 	for (entryp = cmd_table; *entryp != NULL; entryp++) {

cmd-list-panes.c

@@ -41,7 +41,7 @@ const struct cmd_entry cmd_list_panes_entry = {
 	.args = { "asF:t:", 0, 0 },
 	.usage = "[-as] [-F format] " CMD_TARGET_WINDOW_USAGE,
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_list_panes_exec
@@ -51,8 +51,8 @@ static enum cmd_retval
 cmd_list_panes_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args	*args = self->args;
-	struct session	*s = item->state.tflag.s;
-	struct winlink	*wl = item->state.tflag.wl;
+	struct session	*s = item->target.s;
+	struct winlink	*wl = item->target.wl;
 
 	if (args_has(args, 'a'))
 		cmd_list_panes_server(self, item);
@@ -123,7 +123,7 @@ cmd_list_panes_window(struct cmd *self, struct session *s, struct winlink *wl,
 
 	n = 0;
 	TAILQ_FOREACH(wp, &wl->window->panes, entry) {
-		ft = format_create(item, FORMAT_NONE, 0);
+		ft = format_create(item->client, item, FORMAT_NONE, 0);
 		format_add(ft, "line", "%u", n);
 		format_defaults(ft, NULL, s, wl, wp);
 

cmd-list-sessions.c

@@ -30,8 +30,7 @@
 
 #define LIST_SESSIONS_TEMPLATE				\
 	"#{session_name}: #{session_windows} windows "	\
-	"(created #{t:session_created}) "		\
-	"[#{session_width}x#{session_height}]"		\
+	"(created #{t:session_created})"		\
 	"#{?session_grouped, (group ,}"			\
 	"#{session_group}#{?session_grouped,),}"	\
 	"#{?session_attached, (attached),}"
@@ -65,7 +64,7 @@ cmd_list_sessions_exec(struct cmd *self, struct cmdq_item *item)
 
 	n = 0;
 	RB_FOREACH(s, sessions, &sessions) {
-		ft = format_create(item, FORMAT_NONE, 0);
+		ft = format_create(item->client, item, FORMAT_NONE, 0);
 		format_add(ft, "line", "%u", n);
 		format_defaults(ft, NULL, s, NULL, NULL);
 

cmd-list-windows.c

@@ -52,7 +52,7 @@ const struct cmd_entry cmd_list_windows_entry = {
 	.args = { "F:at:", 0, 0 },
 	.usage = "[-a] [-F format] " CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_list_windows_exec
@@ -66,7 +66,7 @@ cmd_list_windows_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(args, 'a'))
 		cmd_list_windows_server(self, item);
 	else
-		cmd_list_windows_session(self, item->state.tflag.s, item, 0);
+		cmd_list_windows_session(self, item->target.s, item, 0);
 
 	return (CMD_RETURN_NORMAL);
 }
@@ -86,7 +86,7 @@ cmd_list_windows_session(struct cmd *self, struct session *s,
 {
 	struct args		*args = self->args;
 	struct winlink		*wl;
-	u_int			n;
+	u_int			 n;
 	struct format_tree	*ft;
 	const char		*template;
 	char			*line;
@@ -105,7 +105,7 @@ cmd_list_windows_session(struct cmd *self, struct session *s,
 
 	n = 0;
 	RB_FOREACH(wl, winlinks, &s->windows) {
-		ft = format_create(item, FORMAT_NONE, 0);
+		ft = format_create(item->client, item, FORMAT_NONE, 0);
 		format_add(ft, "line", "%u", n);
 		format_defaults(ft, NULL, s, wl, NULL);
 

cmd-load-buffer.c

@@ -56,10 +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;
-	char				*pdata, *new_pdata, *cause, *file;
+	const char			*bufname;
+	char				*pdata = NULL, *new_pdata, *cause;
+	char				*path, *file;
 	size_t				 psize;
 	int				 ch, error;
 
@@ -67,8 +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;
 
@@ -78,19 +85,21 @@ 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));
-		free(file);
-		return (CMD_RETURN_ERROR);
+		goto error;
 	}
 
 	pdata = NULL;
@@ -127,6 +136,7 @@ error:
 	free(pdata);
 	if (f != NULL)
 		fclose(f);
+	free(file);
 	return (CMD_RETURN_ERROR);
 }
 

cmd-lock-server.c

@@ -44,7 +44,7 @@ const struct cmd_entry cmd_lock_session_entry = {
 	.args = { "t:", 0, 0 },
 	.usage = CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_lock_server_exec
@@ -57,22 +57,25 @@ const struct cmd_entry cmd_lock_client_entry = {
 	.args = { "t:", 0, 0 },
 	.usage = CMD_TARGET_CLIENT_USAGE,
 
-	.tflag = CMD_CLIENT,
-
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_lock_server_exec
 };
 
 static enum cmd_retval
-cmd_lock_server_exec(struct cmd *self, __unused struct cmdq_item *item)
+cmd_lock_server_exec(struct cmd *self, struct cmdq_item *item)
 {
+	struct args	*args = self->args;
+	struct client	*c;
+
 	if (self->entry == &cmd_lock_server_entry)
 		server_lock();
 	else if (self->entry == &cmd_lock_session_entry)
-		server_lock_session(item->state.tflag.s);
-	else
-		server_lock_client(item->state.c);
-
+		server_lock_session(item->target.s);
+	else {
+		if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
+			return (CMD_RETURN_ERROR);
+		server_lock_client(c);
+	}
 	recalculate_sizes();
 
 	return (CMD_RETURN_NORMAL);

cmd-move-window.c

@@ -35,8 +35,8 @@ const struct cmd_entry cmd_move_window_entry = {
 	.args = { "adkrs:t:", 0, 0 },
 	.usage = "[-dkr] " CMD_SRCDST_WINDOW_USAGE,
 
-	.sflag = CMD_WINDOW,
-	.tflag = CMD_MOVEW_R,
+	.source = { 's', CMD_FIND_WINDOW, 0 },
+	/* -t is special */
 
 	.flags = 0,
 	.exec = cmd_move_window_exec
@@ -49,8 +49,8 @@ const struct cmd_entry cmd_link_window_entry = {
 	.args = { "adks:t:", 0, 0 },
 	.usage = "[-dk] " CMD_SRCDST_WINDOW_USAGE,
 
-	.sflag = CMD_WINDOW,
-	.tflag = CMD_WINDOW_INDEX,
+	.source = { 's', CMD_FIND_WINDOW, 0 },
+	/* -t is special */
 
 	.flags = 0,
 	.exec = cmd_move_window_exec
@@ -60,18 +60,31 @@ static enum cmd_retval
 cmd_move_window_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args	*args = self->args;
-	struct session	*src = item->state.sflag.s;
-	struct session	*dst = item->state.tflag.s;
-	struct winlink	*wl = item->state.sflag.wl;
+	const char	*tflag = args_get(args, 't');
+	struct session	*src;
+	struct session	*dst;
+	struct winlink	*wl;
 	char		*cause;
-	int		 idx = item->state.tflag.idx, kflag, dflag, sflag;
+	int		 idx, kflag, dflag, sflag;
 
 	if (args_has(args, 'r')) {
-		session_renumber_windows(dst);
+		if (cmd_find_target(&item->target, item, tflag,
+		    CMD_FIND_SESSION, CMD_FIND_QUIET) != 0)
+			return (CMD_RETURN_ERROR);
+
+		session_renumber_windows(item->target.s);
 		recalculate_sizes();
+		server_status_session(item->target.s);
 
 		return (CMD_RETURN_NORMAL);
 	}
+	if (cmd_find_target(&item->target, item, tflag, CMD_FIND_WINDOW,
+	    CMD_FIND_WINDOW_INDEX) != 0)
+		return (CMD_RETURN_ERROR);
+	src = item->source.s;
+	dst = item->target.s;
+	wl = item->source.wl;
+	idx = item->target.idx;
 
 	kflag = args_has(self->args, 'k');
 	dflag = args_has(self->args, 'd');

cmd-new-session.c

@@ -44,7 +44,7 @@ const struct cmd_entry cmd_new_session_entry = {
 		 "[-s session-name] " CMD_TARGET_SESSION_USAGE " [-x width] "
 		 "[-y height] [command]",
 
-	.tflag = CMD_SESSION_CANFAIL,
+	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
 
 	.flags = CMD_STARTSERVER,
 	.exec = cmd_new_session_exec
@@ -57,7 +57,7 @@ const struct cmd_entry cmd_has_session_entry = {
 	.args = { "t:", 0, 0 },
 	.usage = CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = 0,
 	.exec = cmd_new_session_exec
@@ -71,20 +71,23 @@ 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		*newname, *errstr, *template, *group, *prefix;
-	const char		*path, *cmd, *cwd, *to_free = NULL;
-	char		       **argv, *cause, *cp;
+	const char		*errstr, *template, *group, *prefix;
+	const char		*path, *cmd, *tmp, *value;
+	char		       **argv, *cause, *cp, *newname, *cwd = NULL;
 	int			 detached, already_attached, idx, argc;
-	u_int			 sx, sy;
+	int			 is_control = 0;
+	u_int			 sx, sy, dsx = 80, dsy = 24;
 	struct environ_entry	*envent;
 	struct cmd_find_state	 fs;
+	enum cmd_retval		 retval;
 
 	if (self->entry == &cmd_has_session_entry) {
 		/*
-		 * cmd_prepare() will fail if the session cannot be found,
-		 * hence always return success here.
+		 * cmd_find_target() will fail if the session cannot be found,
+		 * so always return success here.
 		 */
 		return (CMD_RETURN_NORMAL);
 	}
@@ -94,34 +97,31 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		return (CMD_RETURN_ERROR);
 	}
 
-	newname = args_get(args, 's');
-	if (newname != NULL) {
+	newname = NULL;
+	if (args_has(args, 's')) {
+		newname = format_single(item, args_get(args, 's'), c, NULL,
+		    NULL, NULL);
 		if (!session_check_name(newname)) {
 			cmdq_error(item, "bad session name: %s", newname);
-			return (CMD_RETURN_ERROR);
+			goto error;
 		}
 		if ((as = session_find(newname)) != NULL) {
 			if (args_has(args, 'A')) {
-				/*
-				 * This item is now destined for
-				 * attach-session. Because attach-session will
-				 * have already been prepared, copy this
-				 * session into its tflag so it can be used.
-				 */
-				cmd_find_from_session(&item->state.tflag, as);
-				return (cmd_attach_session(item,
-				    args_has(args, 'D'), 0, NULL,
-				    args_has(args, 'E')));
+				retval = cmd_attach_session(item,
+				    newname, args_has(args, 'D'),
+				    0, NULL, args_has(args, 'E'));
+				free(newname);
+				return (retval);
 			}
 			cmdq_error(item, "duplicate session: %s", newname);
-			return (CMD_RETURN_ERROR);
+			goto error;
 		}
 	}
 
 	/* Is this going to be part of a session group? */
 	group = args_get(args, 't');
 	if (group != NULL) {
-		groupwith = item->state.tflag.s;
+		groupwith = item->target.s;
 		if (groupwith == NULL) {
 			if (!session_check_name(group)) {
 				cmdq_error(item, "bad group name: %s", group);
@@ -146,6 +146,8 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 	detached = args_has(args, 'd');
 	if (c == NULL)
 		detached = 1;
+	else if (c->flags & CLIENT_CONTROL)
+		is_control = 1;
 
 	/* Is this client already attached? */
 	already_attached = 0;
@@ -153,13 +155,10 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		already_attached = 1;
 
 	/* Get the new session working directory. */
-	if (args_has(args, 'c')) {
-		cwd = args_get(args, 'c');
-		to_free = cwd = format_single(item, cwd, c, NULL, NULL, NULL);
-	} else if (c != NULL && c->session == NULL && c->cwd != NULL)
-		cwd = c->cwd;
+	if ((tmp = args_get(args, 'c')) != NULL)
+		cwd = format_single(item, tmp, c, NULL, NULL, NULL);
 	else
-		cwd = ".";
+		cwd = xstrdup(server_client_get_cwd(c, NULL));
 
 	/*
 	 * If this is a new client, check for nesting and save the termios
@@ -191,30 +190,51 @@ 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 (c != NULL) {
+	if (!detached && !is_control) {
 		sx = c->tty.sx;
 		sy = c->tty.sy;
+		if (sy > 0 && options_get_number(global_s_options, "status"))
+			sy--;
 	} else {
-		sx = 80;
-		sy = 24;
-	}
-	if (detached && args_has(args, 'x')) {
-		sx = strtonum(args_get(args, 'x'), 1, USHRT_MAX, &errstr);
-		if (errstr != NULL) {
-			cmdq_error(item, "width %s", errstr);
-			goto error;
+		value = options_get_string(global_s_options, "default-size");
+		if (sscanf(value, "%ux%u", &sx, &sy) != 2) {
+			sx = 80;
+			sy = 24;
 		}
+		if (args_has(args, 'x'))
+			sx = dsx;
+		if (args_has(args, 'y'))
+			sy = dsy;
 	}
-	if (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 (sy > 0 && options_get_number(global_s_options, "status"))
-		sy--;
 	if (sx == 0)
 		sx = 1;
 	if (sy == 0)
@@ -250,10 +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,
-	    idx, sx, sy, &cause);
+	s = session_create(prefix, newname, argc, argv, path, cwd, env, oo,
+	    tiop, idx, &cause);
 	environ_free(env);
 	if (s == NULL) {
 		cmdq_error(item, "create session failed: %s", cause);
@@ -262,10 +287,12 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 	}
 
 	/* Set the initial window name if one given. */
-	if (argc >= 0 && args_has(args, 'n')) {
+	if (argc >= 0 && (tmp = args_get(args, 'n')) != NULL) {
+		cp = format_single(item, tmp, c, s, NULL, NULL);
 		w = s->curw->window;
-		window_set_name(w, args_get(args, 'n'));
+		window_set_name(w, cp);
 		options_set_number(w->options, "automatic-rename", 0);
+		free(cp);
 	}
 
 	/*
@@ -297,8 +324,9 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		} else if (c->session != NULL)
 			c->last_session = c->session;
 		c->session = s;
-		if (!item->repeat)
+		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);
@@ -324,19 +352,20 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		free(cp);
 	}
 
-	if (!detached)
+	if (!detached) {
 		c->flags |= CLIENT_ATTACHED;
+		cmd_find_from_session(&item->shared->current, s, 0);
+	}
 
-	if (to_free != NULL)
-		free((void *)to_free);
-
-	cmd_find_from_session(&fs, s);
+	cmd_find_from_session(&fs, s, 0);
 	hooks_insert(s->hooks, item, &fs, "after-new-session");
 
+	free(cwd);
+	free(newname);
 	return (CMD_RETURN_NORMAL);
 
 error:
-	if (to_free != NULL)
-		free((void *)to_free);
+	free(cwd);
+	free(newname);
 	return (CMD_RETURN_ERROR);
 }

cmd-new-window.c

@@ -42,7 +42,7 @@ const struct cmd_entry cmd_new_window_entry = {
 	.usage = "[-adkP] [-c start-directory] [-F format] [-n window-name] "
 		 CMD_TARGET_WINDOW_USAGE " [command]",
 
-	.tflag = CMD_WINDOW_INDEX,
+	.target = { 't', CMD_FIND_WINDOW, CMD_FIND_WINDOW_INDEX },
 
 	.flags = 0,
 	.exec = cmd_new_window_exec
@@ -52,17 +52,18 @@ static enum cmd_retval
 cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct session		*s = item->state.tflag.s;
-	struct winlink		*wl = item->state.tflag.wl;
-	struct client		*c = item->state.c;
-	int			 idx = item->state.tflag.idx;
-	const char		*cmd, *path, *template, *cwd, *to_free;
-	char		       **argv, *cause, *cp;
+	struct cmd_find_state	*current = &item->shared->current;
+	struct session		*s = item->target.s;
+	struct winlink		*wl = item->target.wl;
+	struct client		*c = cmd_find_client(item, NULL, 1);
+	int			 idx = item->target.idx;
+	const char		*cmd, *path, *template, *tmp;
+	char		       **argv, *cause, *cp, *cwd, *name;
 	int			 argc, detached;
 	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);
@@ -92,16 +93,16 @@ cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
 	if (envent != NULL)
 		path = envent->value;
 
-	to_free = NULL;
-	if (args_has(args, 'c')) {
-		cwd = args_get(args, 'c');
-		to_free = cwd = format_single(item, cwd, c, s, NULL, NULL);
-	} else if (item->client != NULL && item->client->session == NULL)
-		cwd = item->client->cwd;
+	if ((tmp = args_get(args, 'c')) != NULL)
+		cwd = format_single(item, tmp, c, s, NULL, NULL);
 	else
-		cwd = 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')) {
@@ -123,7 +124,7 @@ cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
 
 	if (idx == -1)
 		idx = -1 - options_get_number(s->options, "base-index");
-	wl = session_new(s, args_get(args, 'n'), argc, argv, path, cwd, idx,
+	wl = session_new(s, name, argc, argv, path, cwd, idx,
 		&cause);
 	if (wl == NULL) {
 		cmdq_error(item, "create window failed: %s", cause);
@@ -132,6 +133,7 @@ cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
 	}
 	if (!detached) {
 		session_select(s, wl->idx);
+		cmd_find_from_winlink(current, wl, 0);
 		server_redraw_session_group(s);
 	} else
 		server_status_session_group(s);
@@ -144,16 +146,15 @@ cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
 		free(cp);
 	}
 
-	if (to_free != NULL)
-		free((void *)to_free);
-
-	cmd_find_from_winlink(&fs, s, wl);
+	cmd_find_from_winlink(&fs, wl, 0);
 	hooks_insert(s->hooks, item, &fs, "after-new-window");
 
+	free(name);
+	free(cwd);
 	return (CMD_RETURN_NORMAL);
 
 error:
-	if (to_free != NULL)
-		free((void *)to_free);
+	free(name);
+	free(cwd);
 	return (CMD_RETURN_ERROR);
 }

cmd-paste-buffer.c

@@ -37,7 +37,7 @@ const struct cmd_entry cmd_paste_buffer_entry = {
 	.usage = "[-dpr] [-s separator] " CMD_BUFFER_USAGE " "
 		 CMD_TARGET_PANE_USAGE,
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_paste_buffer_exec
@@ -47,7 +47,7 @@ static enum cmd_retval
 cmd_paste_buffer_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct window_pane	*wp = item->state.tflag.wp;
+	struct window_pane	*wp = item->target.wp;
 	struct paste_buffer	*pb;
 	const char		*sepstr, *bufname, *bufdata, *bufend, *line;
 	size_t			 seplen, bufsize;

cmd-pipe-pane.c

@@ -21,6 +21,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <signal.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
@@ -34,16 +35,18 @@
 
 static enum cmd_retval	cmd_pipe_pane_exec(struct cmd *, struct cmdq_item *);
 
+static void cmd_pipe_pane_read_callback(struct bufferevent *, void *);
+static void cmd_pipe_pane_write_callback(struct bufferevent *, void *);
 static void cmd_pipe_pane_error_callback(struct bufferevent *, short, void *);
 
 const struct cmd_entry cmd_pipe_pane_entry = {
 	.name = "pipe-pane",
 	.alias = "pipep",
 
-	.args = { "ot:", 0, 1 },
-	.usage = "[-o] " CMD_TARGET_PANE_USAGE " [command]",
+	.args = { "IOot:", 0, 1 },
+	.usage = "[-IOo] " CMD_TARGET_PANE_USAGE " [command]",
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_pipe_pane_exec
@@ -53,13 +56,14 @@ static enum cmd_retval
 cmd_pipe_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct client		*c = item->state.c;
-	struct window_pane	*wp = item->state.tflag.wp;
-	struct session		*s = item->state.tflag.s;
-	struct winlink		*wl = item->state.tflag.wl;
+	struct client		*c = cmd_find_client(item, NULL, 1);
+	struct window_pane	*wp = item->target.wp;
+	struct session		*s = item->target.s;
+	struct winlink		*wl = item->target.wl;
 	char			*cmd;
-	int			 old_fd, pipe_fd[2], null_fd;
+	int			 old_fd, pipe_fd[2], null_fd, in, out;
 	struct format_tree	*ft;
+	sigset_t		 set, oldset;
 
 	/* Destroy the old pipe. */
 	old_fd = wp->pipe_fd;
@@ -67,6 +71,11 @@ cmd_pipe_pane_exec(struct cmd *self, struct cmdq_item *item)
 		bufferevent_free(wp->pipe_event);
 		close(wp->pipe_fd);
 		wp->pipe_fd = -1;
+
+		if (window_pane_destroy_ready(wp)) {
+			server_destroy_pane(wp, 1);
+			return (CMD_RETURN_NORMAL);
+		}
 	}
 
 	/* If no pipe command, that is enough. */
@@ -82,6 +91,15 @@ cmd_pipe_pane_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(self->args, 'o') && old_fd != -1)
 		return (CMD_RETURN_NORMAL);
 
+	/* What do we want to do? Neither -I or -O is -O. */
+	if (args_has(self->args, 'I')) {
+		in = 1;
+		out = args_has(self->args, 'O');
+	} else {
+		in = 0;
+		out = 1;
+	}
+
 	/* Open the new pipe. */
 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, pipe_fd) != 0) {
 		cmdq_error(item, "socketpair error: %s", strerror(errno));
@@ -89,65 +107,119 @@ cmd_pipe_pane_exec(struct cmd *self, struct cmdq_item *item)
 	}
 
 	/* Expand the command. */
-	ft = format_create(item, FORMAT_NONE, 0);
+	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. */
+	sigfillset(&set);
+	sigprocmask(SIG_BLOCK, &set, &oldset);
 	switch (fork()) {
 	case -1:
+		sigprocmask(SIG_SETMASK, &oldset, NULL);
 		cmdq_error(item, "fork error: %s", strerror(errno));
 
 		free(cmd);
 		return (CMD_RETURN_ERROR);
 	case 0:
 		/* Child process. */
+		proc_clear_signals(server_proc, 1);
+		sigprocmask(SIG_SETMASK, &oldset, NULL);
 		close(pipe_fd[0]);
-		clear_signals(1);
-
-		if (dup2(pipe_fd[1], STDIN_FILENO) == -1)
-			_exit(1);
-		if (pipe_fd[1] != STDIN_FILENO)
-			close(pipe_fd[1]);
 
 		null_fd = open(_PATH_DEVNULL, O_WRONLY, 0);
-		if (dup2(null_fd, STDOUT_FILENO) == -1)
-			_exit(1);
+		if (out) {
+			if (dup2(pipe_fd[1], STDIN_FILENO) == -1)
+				_exit(1);
+		} else {
+			if (dup2(null_fd, STDIN_FILENO) == -1)
+				_exit(1);
+		}
+		if (in) {
+			if (dup2(pipe_fd[1], STDOUT_FILENO) == -1)
+				_exit(1);
+			if (pipe_fd[1] != STDOUT_FILENO)
+				close(pipe_fd[1]);
+		} else {
+			if (dup2(null_fd, STDOUT_FILENO) == -1)
+				_exit(1);
+		}
 		if (dup2(null_fd, STDERR_FILENO) == -1)
 			_exit(1);
-		if (null_fd != STDOUT_FILENO && null_fd != STDERR_FILENO)
-			close(null_fd);
-
 		closefrom(STDERR_FILENO + 1);
 
 		execl(_PATH_BSHELL, "sh", "-c", cmd, (char *) NULL);
 		_exit(1);
 	default:
 		/* Parent process. */
+		sigprocmask(SIG_SETMASK, &oldset, NULL);
 		close(pipe_fd[1]);
 
 		wp->pipe_fd = pipe_fd[0];
-		wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
-
-		wp->pipe_event = bufferevent_new(wp->pipe_fd,
-		    NULL, NULL, cmd_pipe_pane_error_callback, wp);
-		bufferevent_enable(wp->pipe_event, EV_WRITE);
+		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,
+		    cmd_pipe_pane_read_callback,
+		    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)
+			bufferevent_enable(wp->pipe_event, EV_READ);
 
 		free(cmd);
 		return (CMD_RETURN_NORMAL);
 	}
 }
 
+static void
+cmd_pipe_pane_read_callback(__unused struct bufferevent *bufev, void *data)
+{
+	struct window_pane	*wp = data;
+	struct evbuffer		*evb = wp->pipe_event->input;
+	size_t			 available;
+
+	available = EVBUFFER_LENGTH(evb);
+	log_debug("%%%u pipe read %zu", wp->id, available);
+
+	bufferevent_write(wp->event, EVBUFFER_DATA(evb), available);
+	evbuffer_drain(evb, available);
+
+	if (window_pane_destroy_ready(wp))
+		server_destroy_pane(wp, 1);
+}
+
+static void
+cmd_pipe_pane_write_callback(__unused struct bufferevent *bufev, void *data)
+{
+	struct window_pane	*wp = data;
+
+	log_debug("%%%u pipe empty", wp->id);
+
+	if (window_pane_destroy_ready(wp))
+		server_destroy_pane(wp, 1);
+}
+
 static void
 cmd_pipe_pane_error_callback(__unused struct bufferevent *bufev,
     __unused short what, void *data)
 {
 	struct window_pane	*wp = data;
 
+	log_debug("%%%u pipe error", wp->id);
+
 	bufferevent_free(wp->pipe_event);
 	close(wp->pipe_fd);
 	wp->pipe_fd = -1;
+
+	if (window_pane_destroy_ready(wp))
+		server_destroy_pane(wp, 1);
 }

cmd-queue.c

@@ -102,8 +102,11 @@ cmdq_insert_after(struct cmdq_item *after, struct cmdq_item *item)
 static void
 cmdq_remove(struct cmdq_item *item)
 {
-	if (item->formats != NULL)
-		format_free(item->formats);
+	if (item->shared != NULL && --item->shared->references == 0) {
+		if (item->shared->formats != NULL)
+			format_free(item->shared->formats);
+		free(item->shared);
+	}
 
 	if (item->client != NULL)
 		server_client_unref(item->client);
@@ -150,6 +153,15 @@ cmdq_get_command(struct cmd_list *cmdlist, struct cmd_find_state *current,
 	struct cmd		*cmd;
 	u_int			 group = cmdq_next_group();
 	char			*tmp;
+	struct cmdq_shared	*shared;
+
+	shared = xcalloc(1, sizeof *shared);
+	if (current != NULL)
+		cmd_find_copy_state(&shared->current, current);
+	else
+		cmd_find_clear_state(&shared->current, 0);
+	if (m != NULL)
+		memcpy(&shared->mouse, m, sizeof shared->mouse);
 
 	TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
 		xasprintf(&tmp, "command[%s]", cmd->entry->name);
@@ -161,13 +173,11 @@ cmdq_get_command(struct cmd_list *cmdlist, struct cmd_find_state *current,
 		item->group = group;
 		item->flags = flags;
 
+		item->shared = shared;
 		item->cmdlist = cmdlist;
 		item->cmd = cmd;
 
-		if (current != NULL)
-			cmd_find_copy_state(&item->current, current);
-		if (m != NULL)
-			memcpy(&item->mouse, m, sizeof item->mouse);
+		shared->references++;
 		cmdlist->references++;
 
 		if (first == NULL)
@@ -179,41 +189,63 @@ cmdq_get_command(struct cmd_list *cmdlist, struct cmd_find_state *current,
 	return (first);
 }
 
+/* Fill in flag for a command. */
+static enum cmd_retval
+cmdq_find_flag(struct cmdq_item *item, struct cmd_find_state *fs,
+    const struct cmd_entry_flag *flag)
+{
+	const char	*value;
+
+	if (flag->flag == 0) {
+		cmd_find_clear_state(fs, 0);
+		return (CMD_RETURN_NORMAL);
+	}
+
+	value = args_get(item->cmd->args, flag->flag);
+	if (cmd_find_target(fs, item, value, flag->type, flag->flags) != 0) {
+		cmd_find_clear_state(fs, 0);
+		return (CMD_RETURN_ERROR);
+	}
+	return (CMD_RETURN_NORMAL);
+}
+
 /* Fire command on command queue. */
 static enum cmd_retval
 cmdq_fire_command(struct cmdq_item *item)
 {
 	struct client		*c = item->client;
 	struct cmd		*cmd = item->cmd;
+	const struct cmd_entry	*entry = cmd->entry;
 	enum cmd_retval		 retval;
-	const char		*name;
 	struct cmd_find_state	*fsp, fs;
 	int			 flags;
 
 	flags = !!(cmd->flags & CMD_CONTROL);
 	cmdq_guard(item, "begin", flags);
 
-	if (cmd_prepare_state(cmd, item) != 0) {
-		retval = CMD_RETURN_ERROR;
-		goto out;
-	}
 	if (item->client == NULL)
-		item->client = cmd_find_client(item, NULL, CMD_FIND_QUIET);
-
-	retval = cmd->entry->exec(cmd, item);
+		item->client = cmd_find_client(item, NULL, 1);
+	retval = cmdq_find_flag(item, &item->source, &entry->source);
+	if (retval == CMD_RETURN_ERROR)
+		goto out;
+	retval = cmdq_find_flag(item, &item->target, &entry->target);
 	if (retval == CMD_RETURN_ERROR)
 		goto out;
 
-	if (cmd->entry->flags & CMD_AFTERHOOK) {
-		name = cmd->entry->name;
-		if (cmd_find_valid_state(&item->state.tflag))
-			fsp = &item->state.tflag;
-		else {
-			if (cmd_find_current(&fs, item, CMD_FIND_QUIET) != 0)
-				goto out;
+	retval = entry->exec(cmd, item);
+	if (retval == CMD_RETURN_ERROR)
+		goto out;
+
+	if (entry->flags & CMD_AFTERHOOK) {
+		if (cmd_find_valid_state(&item->target))
+			fsp = &item->target;
+		else if (cmd_find_valid_state(&item->shared->current))
+			fsp = &item->shared->current;
+		else if (cmd_find_from_client(&fs, item->client, 0) == 0)
 			fsp = &fs;
-		}
-		hooks_insert(fsp->s->hooks, item, fsp, "after-%s", name);
+		else
+			goto out;
+		hooks_insert(fsp->s->hooks, item, fsp, "after-%s", entry->name);
 	}
 
 out:
@@ -258,19 +290,17 @@ cmdq_fire_callback(struct cmdq_item *item)
 void
 cmdq_format(struct cmdq_item *item, const char *key, const char *fmt, ...)
 {
+	struct cmdq_shared	*shared = item->shared;
 	va_list			 ap;
-	struct cmdq_item	*loop;
 	char			*value;
 
 	va_start(ap, fmt);
 	xvasprintf(&value, fmt, ap);
 	va_end(ap);
 
-	for (loop = item; loop != NULL; loop = item->next) {
-		if (loop->formats == NULL)
-			loop->formats = format_create(NULL, FORMAT_NONE, 0);
-		format_add(loop->formats, key, "%s", value);
-	}
+	if (shared->formats == NULL)
+		shared->formats = format_create(NULL, NULL, FORMAT_NONE, 0);
+	format_add(shared->formats, key, "%s", value);
 
 	free(value);
 }
@@ -319,8 +349,7 @@ cmdq_next(struct client *c)
 			item->time = time(NULL);
 			item->number = ++number;
 
-			switch (item->type)
-			{
+			switch (item->type) {
 			case CMDQ_COMMAND:
 				retval = cmdq_fire_command(item);
 
@@ -375,10 +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 window	*w;
-	va_list		 ap;
-	char		*tmp, *msg;
+	struct client			*c = item->client;
+	struct window_pane		*wp;
+	struct window_mode_entry	*wme;
+	va_list				 ap;
+	char				*tmp, *msg;
 
 	va_start(ap, fmt);
 
@@ -396,13 +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;
-		if (w->active->mode != &window_copy_mode) {
-			window_pane_reset_mode(w->active);
-			window_pane_set_mode(w->active, &window_copy_mode);
-			window_copy_init_for_output(w->active);
-		}
-		window_copy_vadd(w->active, fmt, ap);
+		wp = c->session->curw->window->active;
+		wme = TAILQ_FIRST(&wp->modes);
+		if (wme == NULL || wme->mode != &window_view_mode)
+			window_pane_set_mode(wp, &window_view_mode, NULL, NULL);
+		window_copy_vadd(wp, fmt, ap);
 	}
 
 	va_end(ap);
@@ -423,6 +451,8 @@ cmdq_error(struct cmdq_item *item, const char *fmt, ...)
 	msglen = xvasprintf(&msg, fmt, ap);
 	va_end(ap);
 
+	log_debug("%s: %s", __func__, msg);
+
 	if (c == NULL)
 		cfg_add_cause("%s:%u: %s", cmd->file, cmd->line, msg);
 	else if (c->session == NULL || (c->flags & CLIENT_CONTROL)) {

cmd-refresh-client.c

@@ -18,6 +18,8 @@
 
 #include <sys/types.h>
 
+#include <stdlib.h>
+
 #include "tmux.h"
 
 /*
@@ -31,10 +33,8 @@ const struct cmd_entry cmd_refresh_client_entry = {
 	.name = "refresh-client",
 	.alias = "refresh",
 
-	.args = { "C:St:", 0, 0 },
-	.usage = "[-S] [-C size] " CMD_TARGET_CLIENT_USAGE,
-
-	.tflag = CMD_CLIENT,
+	.args = { "cC:DlLRSt:U", 0, 1 },
+	.usage = "[-cDlLRSU] [-C size] " CMD_TARGET_CLIENT_USAGE " [adjustment]",
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_refresh_client_exec
@@ -44,21 +44,81 @@ static enum cmd_retval
 cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args	*args = self->args;
-	struct client	*c = item->state.c;
-	const char	*size;
-	u_int		 w, h;
+	struct client	*c;
+	struct tty	*tty;
+	struct window	*w;
+	const char	*size, *errstr;
+	u_int		 x, y, adjust;
 
-	if (args_has(args, 'C')) {
+	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
+		return (CMD_RETURN_ERROR);
+	tty = &c->tty;
+
+	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 ||
-		    h < PANE_MINIMUM || h > 5000) {
+		if (x < WINDOW_MINIMUM || x > WINDOW_MAXIMUM ||
+		    y < WINDOW_MINIMUM || y > WINDOW_MAXIMUM) {
 			cmdq_error(item, "size too small or too big");
 			return (CMD_RETURN_ERROR);
 		}
@@ -66,15 +126,18 @@ cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
 			cmdq_error(item, "not a control client");
 			return (CMD_RETURN_ERROR);
 		}
-		if (tty_set_size(&c->tty, w, h))
-			recalculate_sizes();
-	} else if (args_has(args, 'S')) {
+		tty_set_size(&c->tty, x, y);
+		c->flags |= CLIENT_SIZECHANGED;
+		recalculate_sizes();
+		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

@@ -37,7 +37,7 @@ const struct cmd_entry cmd_rename_session_entry = {
 	.args = { "t:", 1, 1 },
 	.usage = CMD_TARGET_SESSION_USAGE " new-name",
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_rename_session_exec
@@ -46,26 +46,31 @@ const struct cmd_entry cmd_rename_session_entry = {
 static enum cmd_retval
 cmd_rename_session_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct args	*args = self->args;
-	struct session	*s = item->state.tflag.s;
-	const char	*newname;
+	struct args		*args = self->args;
+	struct client		*c = cmd_find_client(item, NULL, 1);
+	struct session		*s = item->target.s;
+	char			*newname;
 
-	newname = args->argv[0];
-	if (strcmp(newname, s->name) == 0)
+	newname = format_single(item, args->argv[0], c, s, NULL, NULL);
+	if (strcmp(newname, s->name) == 0) {
+		free(newname);
 		return (CMD_RETURN_NORMAL);
+	}
 
 	if (!session_check_name(newname)) {
 		cmdq_error(item, "bad session name: %s", newname);
+		free(newname);
 		return (CMD_RETURN_ERROR);
 	}
 	if (session_find(newname) != NULL) {
 		cmdq_error(item, "duplicate session: %s", newname);
+		free(newname);
 		return (CMD_RETURN_ERROR);
 	}
 
 	RB_REMOVE(sessions, &sessions, s);
 	free(s->name);
-	s->name = xstrdup(newname);
+	s->name = newname;
 	RB_INSERT(sessions, &sessions, s);
 
 	server_status_session(s);

cmd-rename-window.c

@@ -36,7 +36,7 @@ const struct cmd_entry cmd_rename_window_entry = {
 	.args = { "t:", 1, 1 },
 	.usage = CMD_TARGET_WINDOW_USAGE " new-name",
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_rename_window_exec
@@ -46,12 +46,17 @@ static enum cmd_retval
 cmd_rename_window_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args	*args = self->args;
-	struct winlink	*wl = item->state.tflag.wl;
+	struct client	*c = cmd_find_client(item, NULL, 1);
+	struct session	*s = item->target.s;
+	struct winlink	*wl = item->target.wl;
+	char		*newname;
 
-	window_set_name(wl->window, args->argv[0]);
+	newname = format_single(item, args->argv[0], c, s, wl, NULL);
+	window_set_name(wl->window, newname);
 	options_set_number(wl->window->options, "automatic-rename", 0);
 
 	server_status_window(wl->window);
+	free(newname);
 
 	return (CMD_RETURN_NORMAL);
 }

cmd-resize-pane.c

@@ -39,7 +39,7 @@ const struct cmd_entry cmd_resize_pane_entry = {
 	.usage = "[-DLMRUZ] [-x width] [-y height] " CMD_TARGET_PANE_USAGE " "
 		 "[adjustment]",
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_resize_pane_exec
@@ -49,23 +49,24 @@ static enum cmd_retval
 cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct window_pane	*wp = item->state.tflag.wp;
-	struct winlink		*wl = item->state.tflag.wl;
+	struct cmdq_shared	*shared = item->shared;
+	struct window_pane	*wp = item->target.wp;
+	struct winlink		*wl = item->target.wl;
 	struct window		*w = wl->window;
 	struct client		*c = item->client;
-	struct session		*s = item->state.tflag.s;
+	struct session		*s = item->target.s;
 	const char	       	*errstr;
 	char			*cause;
 	u_int			 adjust;
 	int			 x, y;
 
 	if (args_has(args, 'M')) {
-		if (cmd_mouse_window(&item->mouse, &s) == NULL)
+		if (cmd_mouse_window(&shared->mouse, &s) == NULL)
 			return (CMD_RETURN_NORMAL);
 		if (c == NULL || c->session != s)
 			return (CMD_RETURN_NORMAL);
 		c->tty.mouse_drag_update = cmd_resize_pane_mouse_update;
-		cmd_resize_pane_mouse_update(c, &item->mouse);
+		cmd_resize_pane_mouse_update(c, &shared->mouse);
 		return (CMD_RETURN_NORMAL);
 	}
 
@@ -90,9 +91,8 @@ cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
 		}
 	}
 
-	if (args_has(self->args, 'x')) {
-		x = args_strtonum(self->args, 'x', PANE_MINIMUM, INT_MAX,
-		    &cause);
+	if (args_has(args, 'x')) {
+		x = args_strtonum(args, 'x', PANE_MINIMUM, INT_MAX, &cause);
 		if (cause != NULL) {
 			cmdq_error(item, "width %s", cause);
 			free(cause);
@@ -100,9 +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')) {
-		y = args_strtonum(self->args, 'y', PANE_MINIMUM, INT_MAX,
-		    &cause);
+	if (args_has(args, 'y')) {
+		y = args_strtonum(args, 'y', PANE_MINIMUM, INT_MAX, &cause);
 		if (cause != NULL) {
 			cmdq_error(item, "height %s", cause);
 			free(cause);
@@ -111,13 +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);
 
@@ -128,47 +127,64 @@ static void
 cmd_resize_pane_mouse_update(struct client *c, struct mouse_event *m)
 {
 	struct winlink		*wl;
-	struct window_pane	*wp;
-	int			 found;
-	u_int			 y, ly;
+	struct window		*w;
+	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;
+	y = m->y; x = m->x;
 	if (m->statusat == 0 && y > 0)
 		y--;
 	else if (m->statusat > 0 && y >= (u_int)m->statusat)
 		y = m->statusat - 1;
-	ly = m->ly;
+	ly = m->ly; lx = m->lx;
 	if (m->statusat == 0 && ly > 0)
 		ly--;
 	else if (m->statusat > 0 && ly >= (u_int)m->statusat)
 		ly = m->statusat - 1;
 
-	found = 0;
-	TAILQ_FOREACH(wp, &wl->window->panes, entry) {
-		if (!window_pane_visible(wp))
+	for (i = 0; i < nitems(cells); i++) {
+		lc = layout_search_by_border(w->layout_root, lx + offsets[i][0],
+		    ly + offsets[i][1]);
+		if (lc == NULL)
 			continue;
 
-		if (wp->xoff + wp->sx == m->lx &&
-		    wp->yoff <= 1 + ly &&
-		    wp->yoff + wp->sy >= ly) {
-			layout_resize_pane(wp, LAYOUT_LEFTRIGHT, m->x - m->lx, 0);
-			found = 1;
+		for (j = 0; j < ncells; j++) {
+			if (cells[j] == lc) {
+				lc = NULL;
+				break;
+			}
 		}
-		if (wp->yoff + wp->sy == ly &&
-		    wp->xoff <= 1 + m->lx &&
-		    wp->xoff + wp->sx >= m->lx) {
-			layout_resize_pane(wp, LAYOUT_TOPBOTTOM, y - ly, 0);
-			found = 1;
+		if (lc == NULL)
+			continue;
+
+		cells[ncells] = lc;
+		ncells++;
+	}
+	if (ncells == 0)
+		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 (found)
-		server_redraw_window(wl->window);
-	else
-		c->tty.mouse_drag_update = NULL;
+	if (resizes != 0)
+		server_redraw_window(w);
 }

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

@@ -34,10 +34,11 @@ const struct cmd_entry cmd_respawn_pane_entry = {
 	.name = "respawn-pane",
 	.alias = "respawnp",
 
-	.args = { "kt:", 0, -1 },
-	.usage = "[-k] " CMD_TARGET_PANE_USAGE " [command]",
+	.args = { "c:kt:", 0, -1 },
+	.usage = "[-c start-directory] [-k] " CMD_TARGET_PANE_USAGE
+	         " [command]",
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_respawn_pane_exec
@@ -47,13 +48,14 @@ static enum cmd_retval
 cmd_respawn_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct winlink		*wl = item->state.tflag.wl;
+	struct winlink		*wl = item->target.wl;
 	struct window		*w = wl->window;
-	struct window_pane	*wp = item->state.tflag.wp;
-	struct session		*s = item->state.tflag.s;
+	struct window_pane	*wp = item->target.wp;
+	struct client           *c = cmd_find_client(item, NULL, 1);
+	struct session		*s = item->target.s;
 	struct environ		*env;
-	const char		*path;
-	char			*cause;
+	const char		*path = NULL, *cp;
+	char			*cause, *cwd = NULL;
 	u_int			 idx;
 	struct environ_entry	*envent;
 
@@ -65,11 +67,10 @@ 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);
 
-	path = NULL;
 	if (item->client != NULL && item->client->session == NULL)
 		envent = environ_find(item->client->environ, "PATH");
 	else
@@ -77,15 +78,20 @@ cmd_respawn_pane_exec(struct cmd *self, struct cmdq_item *item)
 	if (envent != NULL)
 		path = envent->value;
 
-	env = environ_for_session(s);
-	if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, NULL, env,
+	if ((cp = args_get(args, 'c')) != NULL)
+		cwd = format_single(item, cp, c, s, NULL, NULL);
+
+	env = environ_for_session(s, 0);
+	if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, cwd, env,
 	    s->tio, &cause) != 0) {
 		cmdq_error(item, "respawn pane failed: %s", cause);
 		free(cause);
 		environ_free(env);
+		free(cwd);
 		return (CMD_RETURN_ERROR);
 	}
 	environ_free(env);
+	free(cwd);
 
 	wp->flags |= PANE_REDRAW;
 	server_status_window(w);

cmd-respawn-window.c

@@ -34,10 +34,11 @@ const struct cmd_entry cmd_respawn_window_entry = {
 	.name = "respawn-window",
 	.alias = "respawnw",
 
-	.args = { "kt:", 0, -1 },
-	.usage = "[-k] " CMD_TARGET_WINDOW_USAGE " [command]",
+	.args = { "c:kt:", 0, -1 },
+	.usage = "[-c start-directory] [-k] " CMD_TARGET_WINDOW_USAGE
+	         " [command]",
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = 0,
 	.exec = cmd_respawn_window_exec
@@ -47,13 +48,14 @@ static enum cmd_retval
 cmd_respawn_window_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct session		*s = item->state.tflag.s;
-	struct winlink		*wl = item->state.tflag.wl;
+	struct session		*s = item->target.s;
+	struct winlink		*wl = item->target.wl;
 	struct window		*w = wl->window;
 	struct window_pane	*wp;
+	struct client           *c = cmd_find_client(item, NULL, 1);
 	struct environ		*env;
-	const char		*path;
-	char		 	*cause;
+	const char		*path = NULL, *cp;
+	char		 	*cause, *cwd = NULL;
 	struct environ_entry	*envent;
 
 	if (!args_has(self->args, 'k')) {
@@ -73,7 +75,6 @@ cmd_respawn_window_exec(struct cmd *self, struct cmdq_item *item)
 	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
 	window_pane_resize(wp, w->sx, w->sy);
 
-	path = NULL;
 	if (item->client != NULL && item->client->session == NULL)
 		envent = environ_find(item->client->environ, "PATH");
 	else
@@ -81,18 +82,24 @@ cmd_respawn_window_exec(struct cmd *self, struct cmdq_item *item)
 	if (envent != NULL)
 		path = envent->value;
 
-	env = environ_for_session(s);
-	if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, NULL, env,
+	if ((cp = args_get(args, 'c')) != NULL)
+		cwd = format_single(item, cp, c, s, NULL, NULL);
+
+	env = environ_for_session(s, 0);
+	if (window_pane_spawn(wp, args->argc, args->argv, path, NULL, cwd, env,
 	    s->tio, &cause) != 0) {
 		cmdq_error(item, "respawn window failed: %s", cause);
 		free(cause);
 		environ_free(env);
+		free(cwd);
 		server_destroy_pane(wp, 0);
 		return (CMD_RETURN_ERROR);
 	}
 	environ_free(env);
+	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-rotate-window.c

@@ -34,7 +34,7 @@ const struct cmd_entry cmd_rotate_window_entry = {
 	.args = { "Dt:U", 0, 0 },
 	.usage = "[-DU] " CMD_TARGET_WINDOW_USAGE,
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = 0,
 	.exec = cmd_rotate_window_exec
@@ -43,7 +43,8 @@ const struct cmd_entry cmd_rotate_window_entry = {
 static enum cmd_retval
 cmd_rotate_window_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct winlink		*wl = item->state.tflag.wl;
+	struct cmd_find_state	*current = &item->shared->current;
+	struct winlink		*wl = item->target.wl;
 	struct window		*w = wl->window;
 	struct window_pane	*wp, *wp2;
 	struct layout_cell	*lc;
@@ -77,6 +78,7 @@ cmd_rotate_window_exec(struct cmd *self, struct cmdq_item *item)
 		if ((wp = TAILQ_PREV(w->active, window_panes, entry)) == NULL)
 			wp = TAILQ_LAST(&w->panes, window_panes);
 		window_set_active_pane(w, wp);
+		cmd_find_from_winlink_pane(current, wl, wp, 0);
 		server_redraw_window(w);
 	} else {
 		wp = TAILQ_FIRST(&w->panes);
@@ -104,6 +106,7 @@ cmd_rotate_window_exec(struct cmd *self, struct cmdq_item *item)
 		if ((wp = TAILQ_NEXT(w->active, entry)) == NULL)
 			wp = TAILQ_FIRST(&w->panes);
 		window_set_active_pane(w, wp);
+		cmd_find_from_winlink_pane(current, wl, wp, 0);
 		server_redraw_window(w);
 	}
 

cmd-run-shell.c

@@ -42,7 +42,7 @@ const struct cmd_entry cmd_run_shell_entry = {
 	.args = { "bt:", 1, 1 },
 	.usage = "[-b] " CMD_TARGET_PANE_USAGE " shell-command",
 
-	.tflag = CMD_PANE_CANFAIL,
+	.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
 
 	.flags = 0,
 	.exec = cmd_run_shell_exec
@@ -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);
@@ -68,17 +69,17 @@ cmd_run_shell_print(struct job *job, const char *msg)
 			cmdq_print(cdata->item, "%s", msg);
 			return;
 		}
-		if (cmd_find_current (&fs, NULL, CMD_FIND_QUIET) != 0)
+		if (cmd_find_from_nothing(&fs, 0) != 0)
 			return;
 		wp = fs.wp;
 		if (wp == NULL)
 			return;
 	}
 
-	if (window_pane_set_mode(wp, &window_copy_mode) == 0)
-		window_copy_init_for_output(wp);
-	if (wp->mode == &window_copy_mode)
-		window_copy_add(wp, "%s", msg);
+	wme = TAILQ_FIRST(&wp->modes);
+	if (wme == NULL || wme->mode != &window_view_mode)
+		window_pane_set_mode(wp, &window_view_mode, NULL, NULL);
+	window_copy_add(wp, "%s", msg);
 }
 
 static enum cmd_retval
@@ -86,18 +87,10 @@ cmd_run_shell_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args			*args = self->args;
 	struct cmd_run_shell_data	*cdata;
-	struct client			*c = item->state.c;
-	struct session			*s = item->state.tflag.s;
-	struct winlink			*wl = item->state.tflag.wl;
-	struct window_pane		*wp = item->state.tflag.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;
+	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;
 
 	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, cmd_run_shell_callback, cmd_run_shell_free,
-	    cdata);
+	if (job_run(cdata->cmd, s, server_client_get_cwd(item->client, s), NULL,
+	    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;
-	char				*cmd = cdata->cmd, *msg, *line;
+	struct cmd_run_shell_data	*cdata = job_get_data(job);
+	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;
-	if (WIFEXITED(job->status)) {
-		if ((retcode = WEXITSTATUS(job->status)) != 0)
+	status = job_get_status(job);
+	if (WIFEXITED(status)) {
+		if ((retcode = WEXITSTATUS(status)) != 0)
 			xasprintf(&msg, "'%s' returned %d", cmd, retcode);
-	} else if (WIFSIGNALED(job->status)) {
-		retcode = WTERMSIG(job->status);
+	} else if (WIFSIGNALED(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		*flags;
-	char			*msg, *file;
+	const char		*bufname, *bufdata, *start, *end, *flags;
+	char			*msg, *path, *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));
@@ -111,6 +117,7 @@ cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
 	if (fwrite(bufdata, 1, bufsize, f) != bufsize) {
 		cmdq_error(item, "%s: write error", file);
 		fclose(f);
+		free(file);
 		return (CMD_RETURN_ERROR);
 	}
 

cmd-select-layout.c

@@ -33,10 +33,10 @@ const struct cmd_entry cmd_select_layout_entry = {
 	.name = "select-layout",
 	.alias = "selectl",
 
-	.args = { "nopt:", 0, 1 },
-	.usage = "[-nop] " CMD_TARGET_WINDOW_USAGE " [layout-name]",
+	.args = { "Enopt:", 0, 1 },
+	.usage = "[-Enop] " CMD_TARGET_PANE_USAGE " [layout-name]",
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_select_layout_exec
@@ -49,7 +49,7 @@ const struct cmd_entry cmd_next_layout_entry = {
 	.args = { "t:", 0, 0 },
 	.usage = CMD_TARGET_WINDOW_USAGE,
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_select_layout_exec
@@ -62,7 +62,7 @@ const struct cmd_entry cmd_previous_layout_entry = {
 	.args = { "t:", 0, 0 },
 	.usage = CMD_TARGET_WINDOW_USAGE,
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_select_layout_exec
@@ -71,14 +71,14 @@ const struct cmd_entry cmd_previous_layout_entry = {
 static enum cmd_retval
 cmd_select_layout_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct args	*args = self->args;
-	struct winlink	*wl = item->state.tflag.wl;
-	struct window	*w;
-	const char	*layoutname;
-	char		*oldlayout;
-	int		 next, previous, layout;
+	struct args		*args = self->args;
+	struct winlink		*wl = item->target.wl;
+	struct window		*w = wl->window;
+	struct window_pane	*wp = item->target.wp;
+	const char		*layoutname;
+	char			*oldlayout;
+	int			 next, previous, layout;
 
-	w = wl->window;
 	server_unzoom_window(w);
 
 	next = self->entry == &cmd_next_layout_entry;
@@ -99,6 +99,11 @@ cmd_select_layout_exec(struct cmd *self, struct cmdq_item *item)
 		goto changed;
 	}
 
+	if (args_has(args, 'E')) {
+		layout_spread_out(wp);
+		goto changed;
+	}
+
 	if (!args_has(args, 'o')) {
 		if (args->argc == 0)
 			layout = w->lastlayout;
@@ -130,7 +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

@@ -18,6 +18,9 @@
 
 #include <sys/types.h>
 
+#include <stdlib.h>
+#include <string.h>
+
 #include "tmux.h"
 
 /*
@@ -30,10 +33,10 @@ const struct cmd_entry cmd_select_pane_entry = {
 	.name = "select-pane",
 	.alias = "selectp",
 
-	.args = { "DdegLlMmP:Rt:U", 0, 0 },
-	.usage = "[-DdegLlMmRU] [-P style] " CMD_TARGET_PANE_USAGE,
+	.args = { "DdegLlMmP:RT:t:U", 0, 0 },
+	.usage = "[-DdegLlMmRU] [-P style] [-T title] " CMD_TARGET_PANE_USAGE,
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_select_pane_exec
@@ -46,41 +49,74 @@ const struct cmd_entry cmd_last_pane_entry = {
 	.args = { "det:", 0, 0 },
 	.usage = "[-de] " CMD_TARGET_WINDOW_USAGE,
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = 0,
 	.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)
 {
 	struct args		*args = self->args;
-	struct winlink		*wl = item->state.tflag.wl;
+	struct cmd_find_state	*current = &item->shared->current;
+	struct client		*c = cmd_find_client(item, NULL, 1);
+	struct winlink		*wl = item->target.wl;
 	struct window		*w = wl->window;
-	struct session		*s = item->state.tflag.s;
-	struct window_pane	*wp = item->state.tflag.wp, *lastwp, *markedwp;
+	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')) {
-		if (wl->window->last == NULL) {
+		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);
 		}
-
 		if (args_has(self->args, 'e'))
-			w->last->flags &= ~PANE_INPUTOFF;
+			lastwp->flags &= ~PANE_INPUTOFF;
 		else if (args_has(self->args, 'd'))
-			w->last->flags |= PANE_INPUTOFF;
+			lastwp->flags |= PANE_INPUTOFF;
 		else {
 			server_unzoom_window(w);
-			window_redraw_active_switch(w, w->last);
-			if (window_set_active_pane(w, w->last)) {
-				server_status_window(w);
-				server_redraw_window_borders(w);
+			window_redraw_active_switch(w, lastwp);
+			if (window_set_active_pane(w, lastwp)) {
+				cmd_find_from_winlink(current, wl, 0);
+				cmd_select_pane_redraw(w);
 			}
 		}
-
 		return (CMD_RETURN_NORMAL);
 	}
 
@@ -107,17 +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')) {
-			style = args_get(args, 'P');
-			if (style_parse(&grid_default_cell, &wp->colgc,
-			    style) == -1) {
+		if ((style = args_get(args, 'P')) != NULL) {
+			style_set(sy, &grid_default_cell);
+			if (style_parse(sy, &grid_default_cell, 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);
 	}
 
@@ -146,17 +181,23 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 		return (CMD_RETURN_NORMAL);
 	}
 
+	if (args_has(self->args, 'T')) {
+		pane_title = format_single(item, args_get(self->args, 'T'),
+		    c, s, wl, wp);
+		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)) {
-		server_status_window(w);
-		server_redraw_window_borders(w);
+		cmd_find_from_winlink_pane(current, wl, wp, 0);
+		hooks_insert(s->hooks, item, current, "after-select-pane");
+		cmd_select_pane_redraw(w);
 	}
 
 	return (CMD_RETURN_NORMAL);

cmd-select-window.c

@@ -36,7 +36,7 @@ const struct cmd_entry cmd_select_window_entry = {
 	.args = { "lnpTt:", 0, 0 },
 	.usage = "[-lnpT] " CMD_TARGET_WINDOW_USAGE,
 
-	.tflag = CMD_WINDOW,
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = 0,
 	.exec = cmd_select_window_exec
@@ -49,7 +49,7 @@ const struct cmd_entry cmd_next_window_entry = {
 	.args = { "at:", 0, 0 },
 	.usage = "[-a] " CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = 0,
 	.exec = cmd_select_window_exec
@@ -62,7 +62,7 @@ const struct cmd_entry cmd_previous_window_entry = {
 	.args = { "at:", 0, 0 },
 	.usage = "[-a] " CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = 0,
 	.exec = cmd_select_window_exec
@@ -75,7 +75,7 @@ const struct cmd_entry cmd_last_window_entry = {
 	.args = { "t:", 0, 0 },
 	.usage = CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = 0,
 	.exec = cmd_select_window_exec
@@ -84,9 +84,10 @@ const struct cmd_entry cmd_last_window_entry = {
 static enum cmd_retval
 cmd_select_window_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct winlink	*wl = item->state.tflag.wl;
-	struct session	*s = item->state.tflag.s;
-	int		 next, previous, last, activity;
+	struct cmd_find_state	*current = &item->shared->current;
+	struct winlink		*wl = item->target.wl;
+	struct session		*s = item->target.s;
+	int			 next, previous, last, activity;
 
 	next = self->entry == &cmd_next_window_entry;
 	if (args_has(self->args, 'n'))
@@ -116,8 +117,9 @@ cmd_select_window_exec(struct cmd *self, struct cmdq_item *item)
 				return (CMD_RETURN_ERROR);
 			}
 		}
-
+		cmd_find_from_session(current, s, 0);
 		server_redraw_session(s);
+		hooks_insert(s->hooks, item, current, "after-select-window");
 	} else {
 		/*
 		 * If -T and select-window is invoked on same window as
@@ -128,9 +130,14 @@ cmd_select_window_exec(struct cmd *self, struct cmdq_item *item)
 				cmdq_error(item, "no last window");
 				return (-1);
 			}
+			if (current->s == s)
+				cmd_find_from_session(current, s, 0);
 			server_redraw_session(s);
-		} else if (session_select(s, wl->idx) == 0)
+		} else if (session_select(s, wl->idx) == 0) {
+			cmd_find_from_session(current, s, 0);
 			server_redraw_session(s);
+		}
+		hooks_insert(s->hooks, item, current, "after-select-window");
 	}
 	recalculate_sizes();
 

cmd-send-keys.c

@@ -36,7 +36,7 @@ const struct cmd_entry cmd_send_keys_entry = {
 	.args = { "lXRMN:t:", 0, -1 },
 	.usage = "[-lXRM] [-N repeat-count] " CMD_TARGET_PANE_USAGE " key ...",
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_send_keys_exec
@@ -49,26 +49,55 @@ const struct cmd_entry cmd_send_prefix_entry = {
 	.args = { "2t:", 0, 0 },
 	.usage = "[-2] " CMD_TARGET_PANE_USAGE,
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_send_keys_exec
 };
 
+static void
+cmd_send_keys_inject(struct client *c, struct cmdq_item *item, key_code key)
+{
+	struct window_pane		*wp = item->target.wp;
+	struct session			*s = item->target.s;
+	struct winlink			*wl = item->target.wl;
+	struct window_mode_entry	*wme;
+	struct key_table		*table;
+	struct key_binding		*bd;
+
+	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, wl, key, NULL);
+		return;
+	}
+	table = key_bindings_get_table(wme->mode->key_table(wme), 1);
+
+	bd = key_bindings_get(table, key & ~KEYC_XTERM);
+	if (bd != NULL) {
+		table->references++;
+		key_bindings_dispatch(bd, item, c, NULL, &item->target);
+		key_bindings_unref_table(table);
+	}
+}
+
 static enum cmd_retval
 cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct args		*args = self->args;
-	struct client		*c = item->state.c;
-	struct window_pane	*wp = item->state.tflag.wp;
-	struct session		*s = item->state.tflag.s;
-	struct mouse_event	*m = &item->mouse;
-	struct utf8_data	*ud, *uc;
-	wchar_t			 wc;
-	int			 i, literal;
-	key_code		 key;
-	u_int			 np = 1;
-	char			*cause = NULL;
+	struct args			*args = self->args;
+	struct client			*c = cmd_find_client(item, NULL, 1);
+	struct window_pane		*wp = item->target.wp;
+	struct session			*s = item->target.s;
+	struct winlink			*wl = item->target.wl;
+	struct mouse_event		*m = &item->shared->mouse;
+	struct window_mode_entry	*wme = TAILQ_FIRST(&wp->modes);
+	struct utf8_data		*ud, *uc;
+	wchar_t				 wc;
+	int				 i, literal;
+	key_code			 key;
+	u_int				 np = 1;
+	char				*cause = NULL;
 
 	if (args_has(args, 'N')) {
 		np = args_strtonum(args, 'N', 1, UINT_MAX, &cause);
@@ -77,19 +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)
-			wp->modeprefix = np;
+		if (wme != NULL && (args_has(args, 'X') || args->argc == 0)) {
+			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);
-		else
-			wp->mode->command(wp, c, s, args, m);
+			m = NULL;
+		wme->mode->command(wme, c, s, wl, args, m);
 		return (CMD_RETURN_NORMAL);
 	}
 
@@ -99,7 +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);
 	}
 
@@ -108,7 +141,7 @@ cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 			key = options_get_number(s->options, "prefix2");
 		else
 			key = options_get_number(s->options, "prefix");
-		window_pane_key(wp, NULL, s, key, NULL);
+		cmd_send_keys_inject(c, item, key);
 		return (CMD_RETURN_NORMAL);
 	}
 
@@ -123,7 +156,7 @@ cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 			if (!literal) {
 				key = key_string_lookup_string(args->argv[i]);
 				if (key != KEYC_NONE && key != KEYC_UNKNOWN)
-					window_pane_key(wp, NULL, s, key, NULL);
+					cmd_send_keys_inject(c, item, key);
 				else
 					literal = 1;
 			}
@@ -132,7 +165,7 @@ cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 				for (uc = ud; uc->size != 0; uc++) {
 					if (utf8_combine(uc, &wc) != UTF8_DONE)
 						continue;
-					window_pane_key(wp, NULL, s, wc, NULL);
+					cmd_send_keys_inject(c, item, wc);
 				}
 				free(ud);
 			}

cmd-set-environment.c

@@ -37,7 +37,7 @@ const struct cmd_entry cmd_set_environment_entry = {
 	.args = { "grt:u", 1, 2 },
 	.usage = "[-gru] " CMD_TARGET_SESSION_USAGE " name [value]",
 
-	.tflag = CMD_SESSION_CANFAIL,
+	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_set_environment_exec
@@ -68,7 +68,7 @@ cmd_set_environment_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(self->args, 'g'))
 		env = global_environ;
 	else {
-		if (item->state.tflag.s == NULL) {
+		if (item->target.s == NULL) {
 			target = args_get(args, 't');
 			if (target != NULL)
 				cmdq_error(item, "no such session: %s", target);
@@ -76,7 +76,7 @@ cmd_set_environment_exec(struct cmd *self, struct cmdq_item *item)
 				cmdq_error(item, "no current session");
 			return (CMD_RETURN_ERROR);
 		}
-		env = item->state.tflag.s->environ;
+		env = item->target.s->environ;
 	}
 
 	if (args_has(self->args, 'u')) {

cmd-set-hook.c

@@ -33,10 +33,10 @@ const struct cmd_entry cmd_set_hook_entry = {
 	.name = "set-hook",
 	.alias = NULL,
 
-	.args = { "gt:u", 1, 2 },
-	.usage = "[-gu] " CMD_TARGET_SESSION_USAGE " hook-name [command]",
+	.args = { "gRt:u", 1, 2 },
+	.usage = "[-gRu] " CMD_TARGET_SESSION_USAGE " hook-name [command]",
 
-	.tflag = CMD_SESSION_CANFAIL,
+	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_set_hook_exec
@@ -49,7 +49,7 @@ const struct cmd_entry cmd_show_hooks_entry = {
 	.args = { "gt:", 0, 1 },
 	.usage = "[-g] " CMD_TARGET_SESSION_USAGE,
 
-	.tflag = CMD_SESSION,
+	.target = { 't', CMD_FIND_SESSION, 0 },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_set_hook_exec
@@ -68,7 +68,7 @@ cmd_set_hook_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(args, 'g'))
 		hooks = global_hooks;
 	else {
-		if (item->state.tflag.s == NULL) {
+		if (item->target.s == NULL) {
 			target = args_get(args, 't');
 			if (target != NULL)
 				cmdq_error(item, "no such session: %s", target);
@@ -76,7 +76,7 @@ cmd_set_hook_exec(struct cmd *self, struct cmdq_item *item)
 				cmdq_error(item, "no current session");
 			return (CMD_RETURN_ERROR);
 		}
-		hooks = item->state.tflag.s->hooks;
+		hooks = item->target.s->hooks;
 	}
 
 	if (self->entry == &cmd_show_hooks_entry) {
@@ -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>
 
@@ -42,10 +43,10 @@ const struct cmd_entry cmd_set_option_entry = {
 	.name = "set-option",
 	.alias = "set",
 
-	.args = { "agoqst:uw", 1, 2 },
-	.usage = "[-agosquw] [-t target-window] option [value]",
+	.args = { "aFgoqst:uw", 1, 2 },
+	.usage = "[-aFgosquw] [-t target-window] option [value]",
 
-	.tflag = CMD_WINDOW_CANFAIL,
+	.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_set_option_exec
@@ -55,10 +56,10 @@ const struct cmd_entry cmd_set_window_option_entry = {
 	.name = "set-window-option",
 	.alias = "setw",
 
-	.args = { "agoqt:u", 1, 2 },
-	.usage = "[-agoqu] " CMD_TARGET_WINDOW_USAGE " option [value]",
+	.args = { "aFgoqt:u", 1, 2 },
+	.usage = "[-aFgoqu] " CMD_TARGET_WINDOW_USAGE " option [value]",
 
-	.tflag = CMD_WINDOW_CANFAIL,
+	.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_set_option_exec
@@ -69,33 +70,40 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args			*args = self->args;
 	int				 append = args_has(args, 'a');
-	struct cmd_find_state		*fs = &item->state.tflag;
+	struct cmd_find_state		*fs = &item->target;
+	struct client			*c, *loop;
 	struct session			*s = fs->s;
 	struct winlink			*wl = fs->wl;
 	struct window			*w;
-	struct client			*c;
 	enum options_table_scope	 scope;
 	struct options			*oo;
 	struct options_entry		*parent, *o;
-	const char			*name, *value, *target;
+	char				*name, *argument, *value = NULL, *cause;
+	const char			*target;
 	int				 window, idx, already, error, ambiguous;
-	char				*cause;
+	struct style			*sy;
+
+	/* Expand argument. */
+	c = cmd_find_client(item, NULL, 1);
+	argument = format_single(item, args->argv[0], c, s, wl, NULL);
 
 	/* Parse option name and index. */
-	name = options_match(args->argv[0], &idx, &ambiguous);
+	name = options_match(argument, &idx, &ambiguous);
 	if (name == NULL) {
 		if (args_has(args, 'q'))
-			return (CMD_RETURN_NORMAL);
+			goto out;
 		if (ambiguous)
-			cmdq_error(item, "ambiguous option: %s", args->argv[0]);
+			cmdq_error(item, "ambiguous option: %s", argument);
 		else
-			cmdq_error(item, "invalid option: %s", args->argv[0]);
-		return (CMD_RETURN_ERROR);
+			cmdq_error(item, "invalid option: %s", argument);
+		goto fail;
 	}
 	if (args->argc < 2)
 		value = NULL;
+	else if (args_has(args, 'F'))
+		value = format_single(item, args->argv[1], c, s, wl, NULL);
 	else
-		value = args->argv[1];
+		value = xstrdup(args->argv[1]);
 
 	/*
 	 * Figure out the scope: for user options it comes from the arguments,
@@ -113,15 +121,15 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 			scope = OPTIONS_TABLE_WINDOW;
 		else {
 			scope = OPTIONS_TABLE_NONE;
-			xasprintf(&cause, "unknown option: %s", args->argv[0]);
+			xasprintf(&cause, "unknown option: %s", argument);
 		}
 	}
 	if (scope == OPTIONS_TABLE_NONE) {
 		if (args_has(args, 'q'))
-			return (CMD_RETURN_NORMAL);
+			goto out;
 		cmdq_error(item, "%s", cause);
 		free(cause);
-		return (CMD_RETURN_ERROR);
+		goto fail;
 	}
 
 	/* Which table should this option go into? */
@@ -136,7 +144,7 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 				cmdq_error(item, "no such session: %s", target);
 			else
 				cmdq_error(item, "no current session");
-			return (CMD_RETURN_ERROR);
+			goto fail;
 		} else
 			oo = s->options;
 	} else if (scope == OPTIONS_TABLE_WINDOW) {
@@ -148,7 +156,7 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 				cmdq_error(item, "no such window: %s", target);
 			else
 				cmdq_error(item, "no current window");
-			return (CMD_RETURN_ERROR);
+			goto fail;
 		} else
 			oo = wl->window->options;
 	}
@@ -156,11 +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 (*name == '@' || options_array_size(parent, NULL) == -1) {
-			cmdq_error(item, "not an array: %s", args->argv[0]);
-			return (CMD_RETURN_ERROR);
-		}
+	if (idx != -1 && (*name == '@' || !options_isarray(parent))) {
+		cmdq_error(item, "not an array: %s", argument);
+		goto fail;
 	}
 
 	/* With -o, check this option is not already set. */
@@ -175,18 +181,20 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 		}
 		if (already) {
 			if (args_has(args, 'q'))
-				return (CMD_RETURN_NORMAL);
-			cmdq_error(item, "already set: %s", args->argv[0]);
-			return (CMD_RETURN_ERROR);
+				goto out;
+			cmdq_error(item, "already set: %s", argument);
+			goto fail;
 		}
 	}
 
 	/* Change the option. */
 	if (args_has(args, 'u')) {
 		if (o == NULL)
-			return (CMD_RETURN_NORMAL);
+			goto out;
 		if (idx == -1) {
-			if (oo == global_options ||
+			if (*name == '@')
+				options_remove(o);
+			else if (oo == global_options ||
 			    oo == global_s_options ||
 			    oo == global_w_options)
 				options_default(oo, options_table_entry(o));
@@ -197,17 +205,17 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 	} else if (*name == '@') {
 		if (value == NULL) {
 			cmdq_error(item, "empty value");
-			return (CMD_RETURN_ERROR);
+			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)
-			return (CMD_RETURN_ERROR);
+			goto fail;
 	} else {
 		if (value == NULL) {
 			cmdq_error(item, "empty value");
-			return (CMD_RETURN_ERROR);
+			goto fail;
 		}
 		if (o == NULL)
 			o = options_empty(oo, options_table_entry(parent));
@@ -216,8 +224,8 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 				options_array_clear(o);
 			options_array_assign(o, value);
 		} else if (options_array_set(o, idx, value, append) != 0) {
-			cmdq_error(item, "invalid index: %s", args->argv[0]);
-			return (CMD_RETURN_ERROR);
+			cmdq_error(item, "invalid index: %s", argument);
+			goto fail;
 		}
 	}
 
@@ -231,8 +239,24 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 		}
 	}
 	if (strcmp(name, "key-table") == 0) {
-		TAILQ_FOREACH(c, &clients, entry)
-			server_client_set_key_table(c, NULL);
+		TAILQ_FOREACH(loop, &clients, entry)
+			server_client_set_key_table(loop, NULL);
+	}
+	if (strcmp(name, "user-keys") == 0) {
+		TAILQ_FOREACH(loop, &clients, entry) {
+			if (loop->tty.flags & TTY_OPENED)
+				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)
@@ -246,22 +270,32 @@ 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);
+	RB_FOREACH(s, sessions, &sessions)
+		status_update_cache(s);
 
 	/*
 	 * Update sizes and redraw. May not always be necessary but do it
 	 * anyway.
 	 */
 	recalculate_sizes();
-	TAILQ_FOREACH(c, &clients, entry) {
-		if (c->session != NULL)
-			server_redraw_client(c);
+	TAILQ_FOREACH(loop, &clients, entry) {
+		if (loop->session != NULL)
+			server_redraw_client(loop);
 	}
 
+out:
+	free(argument);
+	free(value);
+	free(name);
 	return (CMD_RETURN_NORMAL);
+
+fail:
+	free(argument);
+	free(value);
+	free(name);
+	return (CMD_RETURN_ERROR);
 }
 
 static int
@@ -273,7 +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);
@@ -286,7 +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);
@@ -309,16 +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_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);
+		options_set_number(oo, oe->name, number);
 		return (0);
 	case OPTIONS_TABLE_FLAG:
 		return (cmd_set_option_flag(item, oe, oo, value));
@@ -330,7 +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-environment.c

@@ -41,7 +41,7 @@ const struct cmd_entry cmd_show_environment_entry = {
 	.args = { "gst:", 0, 1 },
 	.usage = "[-gs] " CMD_TARGET_SESSION_USAGE " [name]",
 
-	.tflag = CMD_SESSION_CANFAIL,
+	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_show_environment_exec
@@ -97,7 +97,7 @@ cmd_show_environment_exec(struct cmd *self, struct cmdq_item *item)
 	const char		*target;
 
 	if ((target = args_get(args, 't')) != NULL) {
-		if (item->state.tflag.s == NULL) {
+		if (item->target.s == NULL) {
 			cmdq_error(item, "no such session: %s", target);
 			return (CMD_RETURN_ERROR);
 		}
@@ -106,7 +106,7 @@ cmd_show_environment_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(self->args, 'g'))
 		env = global_environ;
 	else {
-		if (item->state.tflag.s == NULL) {
+		if (item->target.s == NULL) {
 			target = args_get(args, 't');
 			if (target != NULL)
 				cmdq_error(item, "no such session: %s", target);
@@ -114,7 +114,7 @@ cmd_show_environment_exec(struct cmd *self, struct cmdq_item *item)
 				cmdq_error(item, "no current session");
 			return (CMD_RETURN_ERROR);
 		}
-		env = item->state.tflag.s->environ;
+		env = item->target.s->environ;
 	}
 
 	if (args->argc != 0) {

cmd-show-messages.c

@@ -38,14 +38,11 @@ const struct cmd_entry cmd_show_messages_entry = {
 	.args = { "JTt:", 0, 0 },
 	.usage = "[-JT] " CMD_TARGET_CLIENT_USAGE,
 
-	.tflag = CMD_CLIENT,
-
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_show_messages_exec
 };
 
 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)
@@ -68,41 +65,25 @@ 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, lentry) {
-		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)
 {
 	struct args		*args = self->args;
-	struct client		*c = item->state.c;
+	struct client		*c;
 	struct message_entry	*msg;
 	char			*tim;
 	int			 done, blank;
 
+	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
+		return (CMD_RETURN_ERROR);
+
 	done = blank = 0;
 	if (args_has(args, 'T')) {
 		blank = cmd_show_messages_terminals(item, blank);
 		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

@@ -41,7 +41,7 @@ const struct cmd_entry cmd_show_options_entry = {
 	.args = { "gqst:vw", 0, 1 },
 	.usage = "[-gqsvw] [-t target-session|target-window] [option]",
 
-	.tflag = CMD_WINDOW_CANFAIL,
+	.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_show_options_exec
@@ -54,7 +54,7 @@ const struct cmd_entry cmd_show_window_options_entry = {
 	.args = { "gvt:", 0, 1 },
 	.usage = "[-gv] " CMD_TARGET_WINDOW_USAGE " [option]",
 
-	.tflag = CMD_WINDOW_CANFAIL,
+	.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_show_options_exec
@@ -64,7 +64,7 @@ static enum cmd_retval
 cmd_show_options_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args			*args = self->args;
-	struct cmd_find_state		*fs = &item->state.tflag;
+	struct cmd_find_state		*fs = &item->target;
 	struct options			*oo;
 	enum options_table_scope	 scope;
 	char				*cause;
@@ -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;
-	const char	*value;
-	char		*tmp, *escaped;
-	u_int		 size, i;
+	struct options_array_item	*a;
+	const char			*name, *value;
+	char				*tmp, *escaped;
 
 	if (idx != -1) {
 		xasprintf(&tmp, "%s[%d]", options_name(o), idx);
 		name = tmp;
 	} else {
-		if (options_array_size(o, &size) != -1) {
-			for (i = 0; i < size; i++) {
-				if (options_array_get(o, i) == NULL)
-					continue;
-				cmd_show_options_print(self, item, o, i);
+		if (options_isarray(o)) {
+			a = options_array_first(o);
+			while (a != NULL) {
+				idx = options_array_item_index(a);
+				cmd_show_options_print(self, item, o, idx);
+				a = options_array_next(a);
 			}
 			return;
 		}
@@ -127,25 +127,36 @@ cmd_show_options_one(struct cmd *self, struct cmdq_item *item,
     struct options *oo)
 {
 	struct args		*args = self->args;
+	struct client		*c = cmd_find_client(item, NULL, 1);
+	struct session		*s = item->target.s;
+	struct winlink		*wl = item->target.wl;
 	struct options_entry	*o;
 	int			 idx, ambiguous;
-	const char		*name = args->argv[0];
+	char			*name;
 
+	name = format_single(item, args->argv[0], c, s, wl, NULL);
 	o = options_match_get(oo, name, &idx, 1, &ambiguous);
 	if (o == NULL) {
-		if (args_has(args, 'q'))
+		if (args_has(args, 'q')) {
+			free(name);
 			return (CMD_RETURN_NORMAL);
+		}
 		if (ambiguous) {
 			cmdq_error(item, "ambiguous option: %s", name);
+			free(name);
 			return (CMD_RETURN_ERROR);
 		}
 		if (*name != '@' &&
-		    options_match_get(oo, name, &idx, 0, &ambiguous) != NULL)
+		    options_match_get(oo, name, &idx, 0, &ambiguous) != NULL) {
+			free(name);
 			return (CMD_RETURN_NORMAL);
+		}
 		cmdq_error(item, "unknown option: %s", name);
+		free(name);
 		return (CMD_RETURN_ERROR);
 	}
 	cmd_show_options_print(self, item, o, idx);
+	free(name);
 	return (CMD_RETURN_NORMAL);
 }
 
@@ -153,24 +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) {
-			o = options_next(o);
-			continue;
-		}
-		if (options_array_size(o, &size) == -1)
+		if (!options_isarray(o))
 			cmd_show_options_print(self, item, o, -1);
 		else {
-			for (idx = 0; idx < size; idx++) {
-				if (options_array_get(o, idx) == NULL)
-					continue;
+			a = options_array_first(o);
+			while (a != NULL) {
+				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

@@ -43,7 +43,7 @@ const struct cmd_entry cmd_split_window_entry = {
 	.usage = "[-bdfhvP] [-c start-directory] [-F format] "
 		 "[-p percentage|-l size] " CMD_TARGET_PANE_USAGE " [command]",
 
-	.tflag = CMD_PANE,
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_split_window_exec
@@ -52,17 +52,18 @@ const struct cmd_entry cmd_split_window_entry = {
 static enum cmd_retval
 cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 {
+	struct cmd_find_state	*current = &item->shared->current;
 	struct args		*args = self->args;
-	struct client		*c = item->state.c;
-	struct session		*s = item->state.tflag.s;
-	struct winlink		*wl = item->state.tflag.wl;
+	struct client		*c = cmd_find_client(item, NULL, 1);
+	struct session		*s = item->target.s;
+	struct winlink		*wl = item->target.wl;
 	struct window		*w = wl->window;
-	struct window_pane	*wp = item->state.tflag.wp, *new_wp = NULL;
+	struct window_pane	*wp = item->target.wp, *new_wp = NULL;
 	struct environ		*env;
-	const char		*cmd, *path, *shell, *template, *cwd, *to_free;
-	char		       **argv, *cause, *new_cause, *cp;
+	const char		*cmd, *path, *shell, *template, *tmp;
+	char		       **argv, *cause, *new_cause, *cp, *cwd;
 	u_int			 hlimit;
-	int			 argc, size, percentage;
+	int			 argc, size, percentage, before;
 	enum layout_type	 type;
 	struct layout_cell	*lc;
 	struct environ_entry	*envent;
@@ -84,18 +85,15 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 		argv = args->argv;
 	}
 
-	to_free = NULL;
-	if (args_has(args, 'c')) {
-		cwd = args_get(args, 'c');
-		to_free = cwd = format_single(item, cwd, c, s, NULL, NULL);
-	} else if (item->client != NULL && item->client->session == NULL)
-		cwd = item->client->cwd;
+	if ((tmp = args_get(args, 'c')) != NULL)
+		cwd = format_single(item, tmp, c, s, NULL, NULL);
 	else
-		cwd = s->cwd;
+		cwd = xstrdup(server_client_get_cwd(item->client, s));
 
 	type = LAYOUT_TOPBOTTOM;
 	if (args_has(args, 'h'))
 		type = LAYOUT_LEFTRIGHT;
+	before = args_has(args, 'b');
 
 	size = -1;
 	if (args_has(args, 'l')) {
@@ -125,14 +123,13 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 	if (*shell == '\0' || areshell(shell))
 		shell = _PATH_BSHELL;
 
-	lc = layout_split_pane(wp, type, size, args_has(args, 'b'),
-	    args_has(args, 'f'));
+	lc = layout_split_pane(wp, type, size, before, args_has(args, 'f'));
 	if (lc == NULL) {
 		cause = xstrdup("pane too small");
 		goto error;
 	}
-	new_wp = window_add_pane(w, wp, args_has(args, 'b'), hlimit);
-	layout_assign_pane(lc, new_wp);
+	new_wp = window_add_pane(w, wp, before, args_has(args, 'f'), hlimit);
+	layout_make_leaf(lc, new_wp);
 
 	path = NULL;
 	if (item->client != NULL && item->client->session == NULL)
@@ -142,7 +139,7 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 	if (envent != NULL)
 		path = envent->value;
 
-	env = environ_for_session(s);
+	env = environ_for_session(s, 0);
 	if (window_pane_spawn(new_wp, argc, argv, path, shell, cwd, env,
 	    s->tio, &cause) != 0) {
 		environ_free(env);
@@ -150,11 +147,13 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 	}
 	environ_free(env);
 
+	layout_fix_panes(w);
 	server_redraw_window(w);
 
 	if (!args_has(args, 'd')) {
 		window_set_active_pane(w, new_wp);
 		session_select(s, wl->idx);
+		cmd_find_from_session(current, s, 0);
 		server_redraw_session(s);
 	} else
 		server_status_session(s);
@@ -168,17 +167,10 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 	}
 	notify_window("window-layout-changed", w);
 
-	if (to_free != NULL)
-		free((void *)to_free);
-
-	cmd_find_clear_state(&fs, NULL, 0);
-	fs.s = s;
-	fs.wl = wl;
-	fs.w = w;
-	fs.wp = new_wp;
-	cmd_find_log_state(__func__, &fs);
+	cmd_find_from_winlink_pane(&fs, wl, new_wp, 0);
 	hooks_insert(s->hooks, item, &fs, "after-split-window");
 
+	free(cwd);
 	return (CMD_RETURN_NORMAL);
 
 error:
@@ -189,7 +181,6 @@ error:
 	cmdq_error(item, "create pane failed: %s", cause);
 	free(cause);
 
-	if (to_free != NULL)
-		free((void *)to_free);
+	free(cwd);
 	return (CMD_RETURN_ERROR);
 }

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)
 {
@@ -159,21 +175,19 @@ cmd_string_parse(const char *s, const char *file, u_int line, char **cause)
 	char		**argv;
 
 	*cause = NULL;
-	if (cmd_string_split(s, &argc, &argv) != 0)
-		goto error;
+	if (cmd_string_split(s, &argc, &argv) != 0) {
+		xasprintf(cause, "invalid or unknown command: %s", s);
+		return (NULL);
+	}
 	if (argc != 0) {
 		cmdlist = cmd_list_parse(argc, argv, file, line, cause);
 		if (cmdlist == NULL) {
 			cmd_free_argv(argc, argv);
-			goto error;
+			return (NULL);
 		}
 	}
 	cmd_free_argv(argc, argv);
 	return (cmdlist);
-
-error:
-	xasprintf(cause, "invalid or unknown command: %s", s);
-	return (NULL);
 }
 
 static void
@@ -193,12 +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;
-	char   *buf, *t;
-	size_t	len;
-
-	buf = NULL;
-	len = 0;
+	int			ch;
+	wchar_t			wc;
+	struct utf8_data	ud;
+	char		       *buf = NULL, *t;
+	size_t			len = 0;
 
 	while ((ch = cmd_string_getc(s, p)) != endch) {
 		switch (ch) {
@@ -222,6 +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

@@ -35,8 +35,8 @@ const struct cmd_entry cmd_swap_pane_entry = {
 	.args = { "dDs:t:U", 0, 0 },
 	.usage = "[-dDU] " CMD_SRCDST_PANE_USAGE,
 
-	.sflag = CMD_PANE_MARKED,
-	.tflag = CMD_PANE,
+	.source = { 's', CMD_FIND_PANE, CMD_FIND_DEFAULT_MARKED },
+	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
 	.exec = cmd_swap_pane_exec
@@ -50,10 +50,10 @@ cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
 	struct layout_cell	*src_lc, *dst_lc;
 	u_int			 sx, sy, xoff, yoff;
 
-	dst_w = item->state.tflag.wl->window;
-	dst_wp = item->state.tflag.wp;
-	src_w = item->state.sflag.wl->window;
-	src_wp = item->state.sflag.wp;
+	dst_w = item->target.wl->window;
+	dst_wp = item->target.wp;
+	src_w = item->source.wl->window;
+	src_wp = item->source.wp;
 	server_unzoom_window(dst_w);
 
 	if (args_has(self->args, 'D')) {
@@ -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-swap-window.c

@@ -35,8 +35,8 @@ const struct cmd_entry cmd_swap_window_entry = {
 	.args = { "ds:t:", 0, 0 },
 	.usage = "[-d] " CMD_SRCDST_WINDOW_USAGE,
 
-	.sflag = CMD_WINDOW_MARKED,
-	.tflag = CMD_WINDOW,
+	.source = { 's', CMD_FIND_WINDOW, CMD_FIND_DEFAULT_MARKED },
+	.target = { 't', CMD_FIND_WINDOW, 0 },
 
 	.flags = 0,
 	.exec = cmd_swap_window_exec
@@ -50,12 +50,12 @@ cmd_swap_window_exec(struct cmd *self, struct cmdq_item *item)
 	struct winlink		*wl_src, *wl_dst;
 	struct window		*w_src, *w_dst;
 
-	wl_src = item->state.sflag.wl;
-	src = item->state.sflag.s;
+	wl_src = item->source.wl;
+	src = item->source.s;
 	sg_src = session_group_contains(src);
 
-	wl_dst = item->state.tflag.wl;
-	dst = item->state.tflag.s;
+	wl_dst = item->target.wl;
+	dst = item->target.s;
 	sg_dst = session_group_contains(dst);
 
 	if (src != dst && sg_src != NULL && sg_dst != NULL &&

cmd-switch-client.c

@@ -38,8 +38,7 @@ const struct cmd_entry cmd_switch_client_entry = {
 	.usage = "[-Elnpr] [-c target-client] [-t target-session] "
 		 "[-T key-table]",
 
-	.cflag = CMD_CLIENT,
-	.tflag = CMD_SESSION_WITHPANE,
+	/* -t is special */
 
 	.flags = CMD_READONLY,
 	.exec = cmd_switch_client_exec
@@ -49,13 +48,32 @@ static enum cmd_retval
 cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct cmd_state	*state = &item->state;
-	struct client		*c = state->c;
-	struct session		*s = item->state.tflag.s;
+	const char		*tflag = args_get(args, 't');
+	enum cmd_find_type	 type;
+	int			 flags;
+	struct client		*c;
+	struct session		*s;
+	struct winlink		*wl;
 	struct window_pane	*wp;
 	const char		*tablename;
 	struct key_table	*table;
 
+	if ((c = cmd_find_client(item, args_get(args, 'c'), 0)) == NULL)
+		return (CMD_RETURN_ERROR);
+
+	if (tflag != NULL && tflag[strcspn(tflag, ":.")] != '\0') {
+		type = CMD_FIND_PANE;
+		flags = 0;
+	} else {
+		type = CMD_FIND_SESSION;
+		flags = CMD_FIND_PREFER_UNATTACHED;
+	}
+	if (cmd_find_target(&item->target, item, tflag, type, flags) != 0)
+		return (CMD_RETURN_ERROR);
+	s = item->target.s;
+	wl = item->target.wl;
+	wp = item->target.wp;
+
 	if (args_has(args, 'r'))
 		c->flags ^= CLIENT_READONLY;
 
@@ -94,11 +112,14 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 	} else {
 		if (item->client == NULL)
 			return (CMD_RETURN_NORMAL);
-		if (state->tflag.wl != NULL) {
-			wp = state->tflag.wp;
-			if (wp != NULL)
+		if (wl != 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, state->tflag.wl);
+			}
+			session_set_current(s, wl);
+			cmd_find_from_session(&item->shared->current, s, 0);
 		}
 	}
 
@@ -108,9 +129,11 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 	if (c->session != NULL && c->session != s)
 		c->last_session = c->session;
 	c->session = s;
-	if (!item->repeat)
+	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);
 	gettimeofday(&s->last_attached_time, 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

@@ -33,9 +33,7 @@ extern const struct cmd_entry cmd_break_pane_entry;
 extern const struct cmd_entry cmd_capture_pane_entry;
 extern const struct cmd_entry cmd_choose_buffer_entry;
 extern const struct cmd_entry cmd_choose_client_entry;
-extern const struct cmd_entry cmd_choose_session_entry;
 extern const struct cmd_entry cmd_choose_tree_entry;
-extern const struct cmd_entry cmd_choose_window_entry;
 extern const struct cmd_entry cmd_clear_history_entry;
 extern const struct cmd_entry cmd_clock_mode_entry;
 extern const struct cmd_entry cmd_command_prompt_entry;
@@ -82,6 +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;
@@ -122,9 +121,7 @@ const struct cmd_entry *cmd_table[] = {
 	&cmd_capture_pane_entry,
 	&cmd_choose_buffer_entry,
 	&cmd_choose_client_entry,
-	&cmd_choose_session_entry,
 	&cmd_choose_tree_entry,
-	&cmd_choose_window_entry,
 	&cmd_clear_history_entry,
 	&cmd_clock_mode_entry,
 	&cmd_command_prompt_entry,
@@ -170,6 +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,
@@ -204,6 +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)
 {
@@ -212,6 +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++) {
@@ -244,9 +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);
 }
@@ -308,31 +318,31 @@ cmd_stringify_argv(int argc, char **argv)
 static int
 cmd_try_alias(int *argc, char ***argv)
 {
-	struct options_entry	 *o;
-	int			  old_argc = *argc, new_argc;
-	char			**old_argv = *argv, **new_argv;
-	u_int			  size, idx;
-	int			  i;
-	size_t			  wanted;
-	const char		 *s, *cp = NULL;
+	struct options_entry		 *o;
+	struct options_array_item	 *a;
+	int				  old_argc = *argc, new_argc, i;
+	char				**old_argv = *argv, **new_argv;
+	size_t				  wanted;
+	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, '=');
-		if (cp == NULL || (size_t)(cp - s) != wanted)
-			continue;
-		if (strncmp(old_argv[0], s, wanted) == 0)
-			break;
+	a = options_array_first(o);
+	while (a != NULL) {
+		s = options_array_item_value(a);
+		if (s != NULL) {
+			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)
@@ -405,6 +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)
@@ -447,190 +458,6 @@ usage:
 	return (NULL);
 }
 
-static int
-cmd_prepare_state_flag(char c, const char *target, enum cmd_entry_flag flag,
-    struct cmdq_item *item)
-{
-	int			 targetflags, error;
-	struct cmd_find_state	*fs = NULL;
-	struct cmd_find_state	 current;
-
-	if (flag == CMD_NONE ||
-	    flag == CMD_CLIENT ||
-	    flag == CMD_CLIENT_CANFAIL)
-		return (0);
-
-	if (c == 't')
-		fs = &item->state.tflag;
-	else if (c == 's')
-		fs = &item->state.sflag;
-
-	if (flag == CMD_SESSION_WITHPANE) {
-		if (target != NULL && target[strcspn(target, ":.")] != '\0')
-			flag = CMD_PANE;
-		else
-			flag = CMD_SESSION_PREFERUNATTACHED;
-	}
-
-	targetflags = 0;
-	switch (flag) {
-	case CMD_SESSION:
-	case CMD_SESSION_CANFAIL:
-	case CMD_SESSION_PREFERUNATTACHED:
-	case CMD_SESSION_WITHPANE:
-		if (flag == CMD_SESSION_CANFAIL)
-			targetflags |= CMD_FIND_QUIET;
-		if (flag == CMD_SESSION_PREFERUNATTACHED)
-			targetflags |= CMD_FIND_PREFER_UNATTACHED;
-		break;
-	case CMD_MOVEW_R:
-		flag = CMD_WINDOW_INDEX;
-		/* FALLTHROUGH */
-	case CMD_WINDOW:
-	case CMD_WINDOW_CANFAIL:
-	case CMD_WINDOW_MARKED:
-	case CMD_WINDOW_INDEX:
-		if (flag == CMD_WINDOW_CANFAIL)
-			targetflags |= CMD_FIND_QUIET;
-		if (flag == CMD_WINDOW_MARKED)
-			targetflags |= CMD_FIND_DEFAULT_MARKED;
-		if (flag == CMD_WINDOW_INDEX)
-			targetflags |= CMD_FIND_WINDOW_INDEX;
-		break;
-	case CMD_PANE:
-	case CMD_PANE_CANFAIL:
-	case CMD_PANE_MARKED:
-		if (flag == CMD_PANE_CANFAIL)
-			targetflags |= CMD_FIND_QUIET;
-		if (flag == CMD_PANE_MARKED)
-			targetflags |= CMD_FIND_DEFAULT_MARKED;
-		break;
-	default:
-		fatalx("unknown %cflag %d", c, flag);
-	}
-	log_debug("%s: flag %c %d %#x", __func__, c, flag, targetflags);
-
-	error = cmd_find_current(&current, item, targetflags);
-	if (error != 0) {
-		if (~targetflags & CMD_FIND_QUIET)
-			return (-1);
-		cmd_find_clear_state(&current, NULL, 0);
-	}
-	if (!cmd_find_empty_state(&current) && !cmd_find_valid_state(&current))
-		fatalx("invalid current state");
-
-	switch (flag) {
-	case CMD_NONE:
-	case CMD_CLIENT:
-	case CMD_CLIENT_CANFAIL:
-		return (0);
-	case CMD_SESSION:
-	case CMD_SESSION_CANFAIL:
-	case CMD_SESSION_PREFERUNATTACHED:
-	case CMD_SESSION_WITHPANE:
-		error = cmd_find_target(fs, &current, item, target,
-		    CMD_FIND_SESSION, targetflags);
-		if (error != 0)
-			goto error;
-		break;
-	case CMD_MOVEW_R:
-		error = cmd_find_target(fs, &current, item, target,
-		    CMD_FIND_SESSION, CMD_FIND_QUIET);
-		if (error == 0)
-			break;
-		/* FALLTHROUGH */
-	case CMD_WINDOW:
-	case CMD_WINDOW_CANFAIL:
-	case CMD_WINDOW_MARKED:
-	case CMD_WINDOW_INDEX:
-		error = cmd_find_target(fs, &current, item, target,
-		    CMD_FIND_WINDOW, targetflags);
-		if (error != 0)
-			goto error;
-		break;
-	case CMD_PANE:
-	case CMD_PANE_CANFAIL:
-	case CMD_PANE_MARKED:
-		error = cmd_find_target(fs, &current, item, target,
-		    CMD_FIND_PANE, targetflags);
-		if (error != 0)
-			goto error;
-		break;
-	default:
-		fatalx("unknown %cflag %d", c, flag);
-	}
-	return (0);
-
-error:
-	if (~targetflags & CMD_FIND_QUIET)
-		return (-1);
-	cmd_find_clear_state(fs, NULL, 0);
-	return (0);
-}
-
-int
-cmd_prepare_state(struct cmd *cmd, struct cmdq_item *item)
-{
-	const struct cmd_entry	*entry = cmd->entry;
-	struct cmd_state	*state = &item->state;
-	char			*tmp;
-	enum cmd_entry_flag	 flag;
-	const char		*s;
-	int			 error;
-
-	tmp = cmd_print(cmd);
-	log_debug("preparing state for %s (client %p)", tmp, item->client);
-	free(tmp);
-
-	state->c = NULL;
-	cmd_find_clear_state(&state->tflag, NULL, 0);
-	cmd_find_clear_state(&state->sflag, NULL, 0);
-
-	flag = cmd->entry->cflag;
-	if (flag == CMD_NONE) {
-		flag = cmd->entry->tflag;
-		if (flag == CMD_CLIENT || flag == CMD_CLIENT_CANFAIL)
-			s = args_get(cmd->args, 't');
-		else
-			s = NULL;
-	} else
-		s = args_get(cmd->args, 'c');
-	switch (flag) {
-	case CMD_CLIENT:
-		state->c = cmd_find_client(item, s, 0);
-		if (state->c == NULL)
-			return (-1);
-		break;
-	default:
-		state->c = cmd_find_client(item, s, 1);
-		break;
-	}
-	log_debug("using client %p", state->c);
-
-	s = args_get(cmd->args, 't');
-	log_debug("preparing -t state: target %s", s == NULL ? "none" : s);
-
-	error = cmd_prepare_state_flag('t', s, entry->tflag, item);
-	if (error != 0)
-		return (error);
-
-	s = args_get(cmd->args, 's');
-	log_debug("preparing -s state: target %s", s == NULL ? "none" : s);
-
-	error = cmd_prepare_state_flag('s', s, entry->sflag, item);
-	if (error != 0)
-		return (error);
-
-	if (!cmd_find_empty_state(&state->tflag) &&
-	    !cmd_find_valid_state(&state->tflag))
-		fatalx("invalid -t state");
-	if (!cmd_find_empty_state(&state->sflag) &&
-	    !cmd_find_valid_state(&state->sflag))
-		fatalx("invalid -s state");
-
-	return (0);
-}
-
 char *
 cmd_print(struct cmd *cmd)
 {

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.h

@@ -18,6 +18,7 @@
 #define COMPAT_H
 
 #include <sys/types.h>
+#include <sys/ioctl.h>
 #include <sys/uio.h>
 
 #include <limits.h>
@@ -100,17 +101,17 @@ void	warnx(const char *, ...);
 #include <paths.h>
 #endif
 
-#ifdef HAVE_FORKPTY
 #ifdef HAVE_LIBUTIL_H
 #include <libutil.h>
 #endif
+
 #ifdef HAVE_PTY_H
 #include <pty.h>
 #endif
+
 #ifdef HAVE_UTIL_H
 #include <util.h>
 #endif
-#endif
 
 #ifdef HAVE_VIS
 #include <vis.h>
@@ -260,6 +261,11 @@ size_t		 strnlen(const char *, size_t);
 char		*strndup(const char *, size_t);
 #endif
 
+#ifndef HAVE_MEMMEM
+/* memmem.c */
+void		*memmem(const void *, size_t, const void *, size_t);
+#endif
+
 #ifndef HAVE_DAEMON
 /* daemon.c */
 int	 	 daemon(int, int);
@@ -283,9 +289,15 @@ int		 b64_ntop(const char *, size_t, char *, size_t);
 int		 b64_pton(const char *, u_char *, size_t);
 #endif
 
+#ifndef HAVE_FDFORKPTY
+/* fdforkpty.c */
+int		 getptmfd(void);
+pid_t		 fdforkpty(int, int *, char *, struct termios *,
+		     struct winsize *);
+#endif
+
 #ifndef HAVE_FORKPTY
 /* forkpty.c */
-#include <sys/ioctl.h>
 pid_t		 forkpty(int *, char *, struct termios *, struct winsize *);
 #endif
 
@@ -337,9 +349,7 @@ int		 utf8proc_mbtowc(wchar_t *, const char *, size_t);
 int		 utf8proc_wctomb(char *, wchar_t);
 #endif
 
-#ifdef HAVE_GETOPT
-#include <getopt.h>
-#else
+#ifndef HAVE_GETOPT
 /* getopt.c */
 extern int	BSDopterr;
 extern int	BSDoptind;

compat/daemon-darwin.c

@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2017 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.
+ */
+
+/*
+ * Copyright (c) 2011-2013, Chris Johnsen <chris_johnsen@pobox.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *     1. Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *     2. Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <sys/types.h>
+
+#include <mach/mach.h>
+
+#include <Availability.h>
+#include <unistd.h>
+
+void daemon_darwin(void);
+
+#ifdef __MAC_10_10
+
+extern kern_return_t	bootstrap_look_up_per_user(mach_port_t, const char *,
+			    uid_t, mach_port_t *);
+extern kern_return_t	bootstrap_get_root(mach_port_t, mach_port_t *);
+
+void
+daemon_darwin(void)
+{
+	mach_port_t	root = MACH_PORT_NULL;
+	mach_port_t	s = MACH_PORT_NULL;
+	uid_t		uid;
+
+	uid = getuid();
+	if (bootstrap_get_root(bootstrap_port, &root) == KERN_SUCCESS &&
+	    bootstrap_look_up_per_user(root, NULL, uid, &s) == KERN_SUCCESS &&
+	    task_set_bootstrap_port(mach_task_self(), s) == KERN_SUCCESS &&
+	    mach_port_deallocate(mach_task_self(), bootstrap_port) == KERN_SUCCESS)
+		bootstrap_port = s;
+}
+
+#else
+
+void
+daemon_darwin(void)
+{
+}
+
+#endif

compat/daemon.c

@@ -28,12 +28,18 @@
  * SUCH DAMAGE.
  */
 
+#include <sys/types.h>
+
 #include <fcntl.h>
 #include <unistd.h>
 #include <stdlib.h>
 
 #include "compat.h"
 
+#ifdef __APPLE__
+extern void daemon_darwin(void);
+#endif
+
 int
 daemon(int nochdir, int noclose)
 {
@@ -61,5 +67,9 @@ daemon(int nochdir, int noclose)
 		if (fd > 2)
 			(void)close (fd);
 	}
+
+#ifdef __APPLE__
+	daemon_darwin();
+#endif
 	return (0);
 }

compat/fdforkpty.c

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2017 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 <limits.h>
+
+#include "compat.h"
+
+int
+getptmfd(void)
+{
+	return (INT_MAX);
+}
+
+pid_t
+fdforkpty(__unused int ptmfd, int *master, char *name, struct termios *tio,
+    struct winsize *ws)
+{
+	return (forkpty(master, name, tio, ws));
+}

compat/forkpty-aix.c

@@ -29,7 +29,8 @@ void fatal(const char *, ...);
 void fatalx(const char *, ...);
 
 pid_t
-forkpty(int *master, unused char *name, struct termios *tio, struct winsize *ws)
+forkpty(int *master, __unused char *name, struct termios *tio,
+    struct winsize *ws)
 {
 	int	slave = -1, fd, pipe_fd[2];
 	char   *path, dummy;

compat/getdtablecount.c

@@ -30,19 +30,12 @@ getdtablecount(void)
 {
 	char	path[PATH_MAX];
 	glob_t	g;
-	int	n;
+	int	n = 0;
 
 	if (snprintf(path, sizeof path, "/proc/%ld/fd/*", (long)getpid()) < 0)
 		fatal("snprintf overflow");
-	switch (glob(path, 0, NULL, &g)) {
-	case GLOB_NOMATCH:
-		return (0);
-	case 0:
-		break;
-	default:
-		fatal("glob(\"%s\") failed", path);
-	}
-	n = g.gl_pathc;
+	if (glob(path, 0, NULL, &g) == 0)
+		n = g.gl_pathc;
 	globfree(&g);
 	return (n);
 }

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);
-void	ibuf_enqueue(struct msgbuf *, struct ibuf *);
-void	ibuf_dequeue(struct msgbuf *, struct ibuf *);
+static int	ibuf_realloc(struct ibuf *, size_t);
+static void	ibuf_enqueue(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;

compat/memmem.c

@@ -0,0 +1,65 @@
+/*	$OpenBSD: memmem.c,v 1.4 2015/08/31 02:53:57 guenther Exp $ */
+/*-
+ * Copyright (c) 2005 Pascal Gloor <pascal.gloor@spale.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+#include "compat.h"
+
+/*
+ * Find the first occurrence of the byte string s in byte string l.
+ */
+
+void *
+memmem(const void *l, size_t l_len, const void *s, size_t s_len)
+{
+	const char *cur, *last;
+	const char *cl = l;
+	const char *cs = s;
+
+	/* a zero length needle should just return the haystack */
+	if (s_len == 0)
+		return (void *)cl;
+
+	/* "s" must be smaller or equal to "l" */
+	if (l_len < s_len)
+		return NULL;
+
+	/* special case where s_len == 1 */
+	if (s_len == 1)
+		return memchr(l, *cs, l_len);
+
+	/* the last position where its possible to find "s" in "l" */
+	last = cl + l_len - s_len;
+
+	for (cur = cl; cur <= last; cur++)
+		if (cur[0] == cs[0] && memcmp(cur, cs, s_len) == 0)
+			return (void *)cur;
+
+	return NULL;
+}

compat/setenv.c

@@ -15,13 +15,15 @@
  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#include <sys/types.h>
+
 #include <stdlib.h>
 #include <string.h>
 
 #include "compat.h"
 
 int
-setenv(const char *name, const char *value, unused int overwrite)
+setenv(const char *name, const char *value, __unused int overwrite)
 {
 	char	*newval;
 

configure.ac

@@ -1,6 +1,6 @@
 # configure.ac
 
-AC_INIT(tmux, 2.4)
+AC_INIT([tmux], 2.9)
 AC_PREREQ([2.60])
 
 AC_CONFIG_AUX_DIR(etc)
@@ -35,6 +35,7 @@ AC_USE_SYSTEM_EXTENSIONS
 test "$sysconfdir" = '${prefix}/etc' && sysconfdir=/etc
 
 # Is this --enable-debug?
+case "x$VERSION" in xnext*) enable_debug=yes;; esac
 AC_ARG_ENABLE(
 	debug,
 	AC_HELP_STRING(--enable-debug, enable debug build flags),
@@ -103,10 +104,10 @@ AC_REPLACE_FUNCS([ \
 	closefrom \
 	explicit_bzero \
 	fgetln \
-	fparseln \
 	freezero \
 	getdtablecount \
 	getprogname \
+	memmem \
 	recallocarray \
 	reallocarray \
 	setenv \
@@ -175,7 +176,8 @@ if test "x$found_ncurses" = xno; then
 	)
 fi
 if test "x$found_ncurses" = xyes; then
-	CPPFLAGS="$LIBNCURSES_CFLAGS $LIBTINFO_CFLAGS $CPPFLAGS"
+	AM_CFLAGS="$LIBNCURSES_CFLAGS $LIBTINFO_CFLAGS $AM_CFLAGS"
+	CFLAGS="$LIBNCURSES_CFLAGS $LIBTINFO_CFLAGS $CFLAGS"
 	LIBS="$LIBNCURSES_LIBS $LIBTINFO_LIBS $LIBS"
 else
 	# pkg-config didn't work, try ncurses.
@@ -283,6 +285,7 @@ if test "x$found_b64_ntop" = xno; then
 	AC_MSG_RESULT(no)
 
 	AC_MSG_CHECKING(for b64_ntop with -lresolv)
+	OLD_LIBS="$LIBS"
 	LIBS="$LIBS -lresolv"
 	AC_TRY_LINK(
 		[
@@ -295,6 +298,7 @@ if test "x$found_b64_ntop" = xno; then
 		found_b64_ntop=no
 	)
 	if test "x$found_b64_ntop" = xno; then
+		LIBS="$OLD_LIBS"
 		AC_MSG_RESULT(no)
 	fi
 fi
@@ -453,13 +457,30 @@ else
 	AC_LIBOBJ(getopt)
 fi
 
-# Look for forkpty in libutil. compat/forkpty-*.c is linked if not found.
+# Look for fparseln in libutil.
+AC_SEARCH_LIBS(fparseln, util, found_fparseln=yes, found_fparseln=no)
+if test "x$found_fparseln" = xyes; then
+	AC_DEFINE(HAVE_FPARSELN)
+else
+	AC_LIBOBJ(fparseln)
+fi
+
+# Look for fdforkpty and forkpty in libutil.
+AC_SEARCH_LIBS(fdforkpty, util, found_fdforkpty=yes, found_fdforkpty=no)
+if test "x$found_fdforkpty" = xyes; then
+	AC_DEFINE(HAVE_FDFORKPTY)
+else
+	AC_LIBOBJ(fdforkpty)
+fi
 AC_SEARCH_LIBS(forkpty, util, found_forkpty=yes, found_forkpty=no)
 if test "x$found_forkpty" = xyes; then
 	AC_DEFINE(HAVE_FORKPTY)
 fi
 AM_CONDITIONAL(NEED_FORKPTY, test "x$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,
@@ -555,8 +576,15 @@ case "$host_os" in
 		;;
 	*darwin*)
 		AC_MSG_RESULT(darwin)
-		AC_DEFINE(BROKEN_CMSG_FIRSTHDR)
 		PLATFORM=darwin
+		#
+		# OS X CMSG_FIRSTHDR is broken, so redefine it with a working
+		# one. daemon works but has some stupid side effects, so use
+		# our internal version which has a workaround.
+		#
+		AC_DEFINE(BROKEN_CMSG_FIRSTHDR)
+		AC_LIBOBJ(daemon)
+		AC_LIBOBJ(daemon-darwin)
 		;;
 	*dragonfly*)
 		AC_MSG_RESULT(dragonfly)
@@ -585,13 +613,22 @@ case "$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)
 		PLATFORM=hpux
 		;;
-	*cygwin*)
+	*cygwin*|*msys*)
 		AC_MSG_RESULT(cygwin)
 		PLATFORM=cygwin
 		;;

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] == '\\')
@@ -59,14 +61,27 @@ control_notify_input(struct client *c, struct window_pane *wp,
 	}
 }
 
+void
+control_notify_pane_mode_changed(int pane)
+{
+	struct client	*c;
+
+	TAILQ_FOREACH(c, &clients, entry) {
+		if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))
+			continue;
+
+		control_write(c, "%%pane-mode-changed %%%u", pane);
+	}
+}
+
 void
 control_notify_window_layout_changed(struct window *w)
 {
-	struct client		*c;
-	struct session		*s;
-	struct winlink		*wl;
-	const char		*template;
-	char			*cp;
+	struct client	*c;
+	struct session	*s;
+	struct winlink	*wl;
+	const char	*template;
+	char		*cp;
 
 	template = "%layout-change #{window_id} #{window_layout} "
 	    "#{window_visible_layout} #{window_flags}";
@@ -96,6 +111,20 @@ control_notify_window_layout_changed(struct window *w)
 	}
 }
 
+void
+control_notify_window_pane_changed(struct window *w)
+{
+	struct client	*c;
+
+	TAILQ_FOREACH(c, &clients, entry) {
+		if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))
+			continue;
+
+		control_write(c, "%%window-pane-changed @%u %%%u", w->id,
+		    w->active->id);
+	}
+}
+
 void
 control_notify_window_unlinked(__unused struct session *s, struct window *w)
 {
@@ -154,15 +183,27 @@ control_notify_window_renamed(struct window *w)
 }
 
 void
-control_notify_client_session_changed(struct client *c)
+control_notify_client_session_changed(struct client *cc)
 {
+	struct client	*c;
 	struct session	*s;
 
-	if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
+	if (cc->session == NULL)
 		return;
-	s = c->session;
+	s = cc->session;
 
-	control_write(c, "%%session-changed $%u %s", s->id, s->name);
+	TAILQ_FOREACH(c, &clients, entry) {
+		if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
+			continue;
+
+		if (cc == c) {
+			control_write(c, "%%session-changed $%u %s", s->id,
+			    s->name);
+		} else {
+			control_write(c, "%%client-session-changed %s $%u %s",
+			    cc->name, s->id, s->name);
+		}
+	}
 }
 
 void
@@ -203,3 +244,17 @@ control_notify_session_closed(__unused struct session *s)
 		control_write(c, "%%sessions-changed");
 	}
 }
+
+void
+control_notify_session_window_changed(struct session *s)
+{
+	struct client	*c;
+
+	TAILQ_FOREACH(c, &clients, entry) {
+		if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))
+			continue;
+
+		control_write(c, "%%session-window-changed $%u @%u", s->id,
+		    s->curw->window->id);
+	}
+}

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 options_entry	*o;
-	u_int			 size, idx;
-	const char		*value;
+	struct environ_entry		*envent;
+	struct options_entry		*o;
+	struct options_array_item	*a;
+	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++) {
-		value = options_array_get(o, idx);
-		if (value == NULL)
+	a = options_array_first(o);
+	while (a != 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);
 	}
 }
 
@@ -208,9 +212,15 @@ environ_push(struct environ *env)
 
 /* Log the environment. */
 void
-environ_log(struct environ *env, const char *prefix)
+environ_log(struct environ *env, const char *fmt, ...)
 {
 	struct environ_entry	*envent;
+	va_list			 ap;
+	char			*prefix;
+
+	va_start(ap, fmt);
+	vasprintf(&prefix, fmt, ap);
+	va_end(ap);
 
 	RB_FOREACH(envent, environ, env) {
 		if (envent->value != NULL && *envent->name != '\0') {
@@ -218,11 +228,13 @@ environ_log(struct environ *env, const char *prefix)
 			    envent->value);
 		}
 	}
+
+	free(prefix);
 }
 
 /* Create initial environment for new child. */
 struct environ *
-environ_for_session(struct session *s)
+environ_for_session(struct session *s, int no_TERM)
 {
 	struct environ	*env;
 	const char	*value;
@@ -233,8 +245,10 @@ environ_for_session(struct session *s)
 	if (s != NULL)
 		environ_copy(s->environ, env);
 
-	value = options_get_string(global_options, "default-terminal");
-	environ_set(env, "TERM", "%s", value);
+	if (!no_TERM) {
+		value = options_get_string(global_options, "default-terminal");
+		environ_set(env, "TERM", "%s", value);
+	}
 
 	if (s != NULL)
 		idx = s->id;

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;
 	}
@@ -75,7 +75,7 @@ grid_view_clear_history(struct grid *gd, u_int bg)
 
 	/* Scroll the lines into the history. */
 	for (yy = 0; yy < last; yy++) {
-		grid_collect_history(gd, bg);
+		grid_collect_history(gd);
 		grid_scroll_history(gd, bg);
 	}
 	if (last < gd->sy)
@@ -96,32 +96,34 @@ grid_view_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny,
 
 /* Scroll region up. */
 void
-grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower)
+grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower,
+    u_int bg)
 {
 	if (gd->flags & GRID_HISTORY) {
-		grid_collect_history(gd, 8);
+		grid_collect_history(gd);
 		if (rupper == 0 && rlower == gd->sy - 1)
-			grid_scroll_history(gd, 8);
+			grid_scroll_history(gd, bg);
 		else {
 			rupper = grid_view_y(gd, rupper);
 			rlower = grid_view_y(gd, rlower);
-			grid_scroll_history_region(gd, rupper, rlower);
+			grid_scroll_history_region(gd, rupper, rlower, bg);
 		}
 	} else {
 		rupper = grid_view_y(gd, rupper);
 		rlower = grid_view_y(gd, rlower);
-		grid_move_lines(gd, rupper, rupper + 1, rlower - rupper, 8);
+		grid_move_lines(gd, rupper, rupper + 1, rlower - rupper, bg);
 	}
 }
 
 /* Scroll region down. */
 void
-grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower)
+grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower,
+    u_int bg)
 {
 	rupper = grid_view_y(gd, rupper);
 	rlower = grid_view_y(gd, rlower);
 
-	grid_move_lines(gd, rupper + 1, rupper, rlower - rupper, 8);
+	grid_move_lines(gd, rupper + 1, rupper, rlower - rupper, bg);
 }
 
 /* Insert lines. */

hooks.c

@@ -139,33 +139,6 @@ hooks_find(struct hooks *hooks, const char *name)
 	return (hook);
 }
 
-void
-hooks_run(struct hooks *hooks, struct client *c, struct cmd_find_state *fs,
-    const char *fmt, ...)
-{
-	struct hook		*hook;
-	va_list			 ap;
-	char			*name;
-	struct cmdq_item	*new_item;
-
-	va_start(ap, fmt);
-	xvasprintf(&name, fmt, ap);
-	va_end(ap);
-
-	hook = hooks_find(hooks, name);
-	if (hook == NULL) {
-		free(name);
-		return;
-	}
-	log_debug("running hook %s", name);
-
-	new_item = cmdq_get_command(hook->cmdlist, fs, NULL, CMDQ_NOHOOKS);
-	cmdq_format(new_item, "hook", "%s", name);
-	cmdq_append(c, new_item);
-
-	free(name);
-}
-
 void
 hooks_insert(struct hooks *hooks, struct cmdq_item *item,
     struct cmd_find_state *fs, const char *fmt, ...)

input-keys.c

@@ -45,6 +45,10 @@ static const struct input_key_ent input_keys[] = {
 	/* Backspace key. */
 	{ KEYC_BSPACE,		"\177",		0 },
 
+	/* Paste keys. */
+	{ KEYC_PASTE_START,	"\033[200~",	0 },
+	{ KEYC_PASTE_END,	"\033[201~",	0 },
+
 	/* Function keys. */
 	{ KEYC_F1,		"\033OP",	0 },
 	{ KEYC_F2,		"\033OQ",	0 },
@@ -172,7 +176,7 @@ input_key(struct window_pane *wp, key_code key, struct mouse_event *m)
 	 * If this is a normal 7-bit key, just send it, with a leading escape
 	 * if necessary. If it is a UTF-8 key, split it and send it.
 	 */
-	justkey = (key & ~KEYC_ESCAPE);
+	justkey = (key & ~(KEYC_XTERM|KEYC_ESCAPE));
 	if (justkey <= 0x7f) {
 		if (key & KEYC_ESCAPE)
 			bufferevent_write(wp->event, "\033", 1);
@@ -200,6 +204,7 @@ input_key(struct window_pane *wp, key_code key, struct mouse_event *m)
 			return;
 		}
 	}
+	key &= ~KEYC_XTERM;
 
 	/* Otherwise look the key up in the table. */
 	for (i = 0; i < nitems(input_keys); i++) {
@@ -242,10 +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) &&

job.c

@@ -32,35 +32,73 @@
  * output.
  */
 
-static void	job_callback(struct bufferevent *, short, void *);
+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 *
 job_run(const char *cmd, struct session *s, const char *cwd,
-    void (*callbackfn)(struct job *), void (*freefn)(void *), void *data)
+    job_update_cb updatecb, job_complete_cb completecb, job_free_cb freecb,
+    void *data, int flags)
 {
 	struct job	*job;
 	struct environ	*env;
 	pid_t		 pid;
 	int		 nullfd, out[2];
 	const char	*home;
+	sigset_t	 set, oldset;
 
 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, out) != 0)
 		return (NULL);
+	log_debug("%s: cmd=%s, cwd=%s", __func__, cmd, cwd == NULL ? "" : cwd);
 
-	env = environ_for_session(s);
+	/*
+	 * Do not set TERM during .tmux.conf, it is nice to be able to use
+	 * if-shell to decide on default-terminal based on outside TERM.
+	 */
+	env = environ_for_session(s, !cfg_finished);
+
+	sigfillset(&set);
+	sigprocmask(SIG_BLOCK, &set, &oldset);
 	switch (pid = fork()) {
 	case -1:
+		sigprocmask(SIG_SETMASK, &oldset, NULL);
 		environ_free(env);
 		close(out[0]);
 		close(out[1]);
 		return (NULL);
-	case 0:		/* child */
-		clear_signals(1);
+	case 0:
+		proc_clear_signals(server_proc, 1);
+		sigprocmask(SIG_SETMASK, &oldset, NULL);
 
 		if (cwd == NULL || chdir(cwd) != 0) {
 			if ((home = find_home()) == NULL || chdir(home) != 0)
@@ -92,28 +130,32 @@ job_run(const char *cmd, struct session *s, const char *cwd,
 		fatal("execl failed");
 	}
 
-	/* parent */
+	sigprocmask(SIG_SETMASK, &oldset, NULL);
 	environ_free(env);
 	close(out[1]);
 
 	job = xmalloc(sizeof *job);
 	job->state = JOB_RUNNING;
+	job->flags = flags;
 
 	job->cmd = xstrdup(cmd);
 	job->pid = pid;
 	job->status = 0;
 
-	LIST_INSERT_HEAD(&all_jobs, job, lentry);
+	LIST_INSERT_HEAD(&all_jobs, job, entry);
 
-	job->callbackfn = callbackfn;
-	job->freefn = freefn;
+	job->updatecb = updatecb;
+	job->completecb = completecb;
+	job->freecb = freecb;
 	job->data = data;
 
 	job->fd = out[0];
 	setblocking(job->fd, 0);
 
-	job->event = bufferevent_new(job->fd, NULL, job_write_callback,
-	    job_callback, job);
+	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);
@@ -126,11 +168,11 @@ job_free(struct job *job)
 {
 	log_debug("free job %p: %s", job, job->cmd);
 
-	LIST_REMOVE(job, lentry);
+	LIST_REMOVE(job, entry);
 	free(job->cmd);
 
-	if (job->freefn != NULL && job->data != NULL)
-		job->freefn(job->data);
+	if (job->freecb != NULL && job->data != NULL)
+		job->freecb(job->data);
 
 	if (job->pid != -1)
 		kill(job->pid, SIGTERM);
@@ -142,7 +184,21 @@ job_free(struct job *job)
 	free(job);
 }
 
-/* Called when output buffer falls below low watermark (default is 0). */
+/* Job buffer read callback. */
+static void
+job_read_callback(__unused struct bufferevent *bufev, void *data)
+{
+	struct job	*job = data;
+
+	if (job->updatecb != NULL)
+		job->updatecb(job);
+}
+
+/*
+ * Job buffer write callback. Fired when the buffer falls below watermark
+ * (default is empty). If all the data has been written, disable the write
+ * event.
+ */
 static void
 job_write_callback(__unused struct bufferevent *bufev, void *data)
 {
@@ -160,7 +216,7 @@ job_write_callback(__unused struct bufferevent *bufev, void *data)
 
 /* Job buffer error callback. */
 static void
-job_callback(__unused struct bufferevent *bufev, __unused short events,
+job_error_callback(__unused struct bufferevent *bufev, __unused short events,
     void *data)
 {
 	struct job	*job = data;
@@ -168,8 +224,8 @@ job_callback(__unused struct bufferevent *bufev, __unused short events,
 	log_debug("job error %p: %s, pid %ld", job, job->cmd, (long) job->pid);
 
 	if (job->state == JOB_DEAD) {
-		if (job->callbackfn != NULL)
-			job->callbackfn(job);
+		if (job->completecb != NULL)
+			job->completecb(job);
 		job_free(job);
 	} else {
 		bufferevent_disable(job->event, EV_READ);
@@ -179,18 +235,90 @@ job_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;
 
 	if (job->state == JOB_CLOSED) {
-		if (job->callbackfn != NULL)
-			job->callbackfn(job);
+		if (job->completecb != NULL)
+			job->completecb(job);
 		job_free(job);
 	} else {
 		job->pid = -1;
 		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);
-RB_GENERATE(key_tables, key_table, entry, key_table_cmp);
-struct key_tables key_tables = RB_INITIALIZER(&key_tables);
+static int key_bindings_cmp(struct key_binding *, struct key_binding *);
+RB_GENERATE_STATIC(key_bindings, key_binding, entry, key_bindings_cmp);
+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
-key_table_cmp(struct key_table *e1, struct key_table *e2)
+static int
+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)
 {
@@ -83,8 +97,29 @@ 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 can_repeat,
+key_bindings_add(const char *name, key_code key, int repeat,
     struct cmd_list *cmdlist)
 {
 	struct key_table	*table;
@@ -92,7 +127,7 @@ key_bindings_add(const char *name, key_code key, int can_repeat,
 
 	table = key_bindings_get_table(name, 1);
 
-	bd_find.key = key;
+	bd_find.key = (key & ~KEYC_XTERM);
 	bd = RB_FIND(key_bindings, &table->key_bindings, &bd_find);
 	if (bd != NULL) {
 		RB_REMOVE(key_bindings, &table->key_bindings, bd);
@@ -100,11 +135,12 @@ key_bindings_add(const char *name, key_code key, int can_repeat,
 		free(bd);
 	}
 
-	bd = xmalloc(sizeof *bd);
+	bd = xcalloc(1, sizeof *bd);
 	bd->key = key;
 	RB_INSERT(key_bindings, &table->key_bindings, bd);
 
-	bd->can_repeat = can_repeat;
+	if (repeat)
+		bd->flags |= KEY_BINDING_REPEAT;
 	bd->cmdlist = cmdlist;
 }
 
@@ -118,7 +154,7 @@ key_bindings_remove(const char *name, key_code key)
 	if (table == NULL)
 		return;
 
-	bd_find.key = key;
+	bd_find.key = (key & ~KEYC_XTERM);
 	bd = RB_FIND(key_bindings, &table->key_bindings, &bd_find);
 	if (bd == NULL)
 		return;
@@ -137,12 +173,17 @@ void
 key_bindings_remove_table(const char *name)
 {
 	struct key_table	*table;
+	struct client		*c;
 
 	table = key_bindings_get_table(name, 0);
 	if (table != NULL) {
 		RB_REMOVE(key_tables, &key_tables, table);
 		key_bindings_unref_table(table);
 	}
+	TAILQ_FOREACH(c, &clients, entry) {
+		if (c->keytable == table)
+			server_client_set_key_table(c, NULL);
+	}
 }
 
 void
@@ -156,13 +197,13 @@ key_bindings_init(void)
 		"bind ! break-pane",
 		"bind '\"' split-window",
 		"bind '#' list-buffers",
-		"bind '$' command-prompt -I'#S' \"rename-session '%%'\"",
+		"bind '$' command-prompt -I'#S' \"rename-session -- '%%'\"",
 		"bind % split-window -h",
 		"bind & confirm-before -p\"kill-window #W? (y/n)\" kill-window",
 		"bind \"'\" command-prompt -pindex \"select-window -t ':%%'\"",
 		"bind ( switch-client -p",
 		"bind ) switch-client -n",
-		"bind , command-prompt -I'#W' \"rename-window '%%'\"",
+		"bind , command-prompt -I'#W' \"rename-window -- '%%'\"",
 		"bind - delete-buffer",
 		"bind . command-prompt \"move-window -t '%%'\"",
 		"bind 0 select-window -t:=0",
@@ -177,16 +218,17 @@ key_bindings_init(void)
 		"bind 9 select-window -t:=9",
 		"bind : command-prompt",
 		"bind \\; last-pane",
-		"bind = choose-buffer",
+		"bind = choose-buffer -Z",
 		"bind ? list-keys",
-		"bind D choose-client",
+		"bind D choose-client -Z",
+		"bind E select-layout -E",
 		"bind L switch-client -l",
 		"bind M select-pane -M",
 		"bind [ copy-mode",
 		"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",
@@ -195,9 +237,9 @@ key_bindings_init(void)
 		"bind p previous-window",
 		"bind q display-panes",
 		"bind r refresh-client",
-		"bind s choose-tree",
+		"bind s choose-tree -Zs",
 		"bind t clock-mode",
-		"bind w choose-window",
+		"bind w choose-tree -Zw",
 		"bind x confirm-before -p\"kill-pane #P? (y/n)\" kill-pane",
 		"bind z resize-pane -Z",
 		"bind { swap-pane -U",
@@ -216,6 +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",
@@ -243,23 +290,23 @@ key_bindings_init(void)
 		"bind -Tcopy-mode C-k send -X copy-end-of-line",
 		"bind -Tcopy-mode C-n send -X cursor-down",
 		"bind -Tcopy-mode C-p send -X cursor-up",
-		"bind -Tcopy-mode C-r command-prompt -ip'search up' 'send -X search-backward-incremental \"%%%\"'",
-		"bind -Tcopy-mode C-s command-prompt -ip'search down' 'send -X search-forward-incremental \"%%%\"'",
+		"bind -Tcopy-mode C-r command-prompt -ip'(search up)' -I'#{pane_search_string}' 'send -X search-backward-incremental \"%%%\"'",
+		"bind -Tcopy-mode C-s command-prompt -ip'(search down)' -I'#{pane_search_string}' 'send -X search-forward-incremental \"%%%\"'",
 		"bind -Tcopy-mode C-v send -X page-down",
 		"bind -Tcopy-mode C-w send -X copy-selection-and-cancel",
 		"bind -Tcopy-mode Escape send -X cancel",
 		"bind -Tcopy-mode Space send -X page-down",
 		"bind -Tcopy-mode , send -X jump-reverse",
 		"bind -Tcopy-mode \\; send -X jump-again",
-		"bind -Tcopy-mode F command-prompt -1p'jump backward' 'send -X jump-backward \"%%%\"'",
+		"bind -Tcopy-mode F command-prompt -1p'(jump backward)' 'send -X jump-backward \"%%%\"'",
 		"bind -Tcopy-mode N send -X search-reverse",
 		"bind -Tcopy-mode R send -X rectangle-toggle",
-		"bind -Tcopy-mode T command-prompt -1p'jump to backward' 'send -X jump-to-backward \"%%%\"'",
-		"bind -Tcopy-mode f command-prompt -1p'jump forward' 'send -X jump-forward \"%%%\"'",
-		"bind -Tcopy-mode g command-prompt -p'goto line' 'send -X goto-line \"%%%\"'",
+		"bind -Tcopy-mode T command-prompt -1p'(jump to backward)' 'send -X jump-to-backward \"%%%\"'",
+		"bind -Tcopy-mode f command-prompt -1p'(jump forward)' 'send -X jump-forward \"%%%\"'",
+		"bind -Tcopy-mode g command-prompt -p'(goto line)' 'send -X goto-line \"%%%\"'",
 		"bind -Tcopy-mode n send -X search-again",
 		"bind -Tcopy-mode q send -X cancel",
-		"bind -Tcopy-mode t command-prompt -1p'jump to forward' 'send -X jump-to-forward \"%%%\"'",
+		"bind -Tcopy-mode t command-prompt -1p'(jump to forward)' 'send -X jump-to-forward \"%%%\"'",
 		"bind -Tcopy-mode Home send -X start-of-line",
 		"bind -Tcopy-mode End send -X end-of-line",
 		"bind -Tcopy-mode MouseDown1Pane select-pane",
@@ -275,15 +322,15 @@ key_bindings_init(void)
 		"bind -Tcopy-mode Down send -X cursor-down",
 		"bind -Tcopy-mode Left send -X cursor-left",
 		"bind -Tcopy-mode Right send -X cursor-right",
-		"bind -Tcopy-mode M-1 command-prompt -Np'repeat' -I1 'send -N \"%%%\"'",
-		"bind -Tcopy-mode M-2 command-prompt -Np'repeat' -I2 'send -N \"%%%\"'",
-		"bind -Tcopy-mode M-3 command-prompt -Np'repeat' -I3 'send -N \"%%%\"'",
-		"bind -Tcopy-mode M-4 command-prompt -Np'repeat' -I4 'send -N \"%%%\"'",
-		"bind -Tcopy-mode M-5 command-prompt -Np'repeat' -I5 'send -N \"%%%\"'",
-		"bind -Tcopy-mode M-6 command-prompt -Np'repeat' -I6 'send -N \"%%%\"'",
-		"bind -Tcopy-mode M-7 command-prompt -Np'repeat' -I7 'send -N \"%%%\"'",
-		"bind -Tcopy-mode M-8 command-prompt -Np'repeat' -I8 'send -N \"%%%\"'",
-		"bind -Tcopy-mode M-9 command-prompt -Np'repeat' -I9 'send -N \"%%%\"'",
+		"bind -Tcopy-mode M-1 command-prompt -Np'(repeat)' -I1 'send -N \"%%%\"'",
+		"bind -Tcopy-mode M-2 command-prompt -Np'(repeat)' -I2 'send -N \"%%%\"'",
+		"bind -Tcopy-mode M-3 command-prompt -Np'(repeat)' -I3 'send -N \"%%%\"'",
+		"bind -Tcopy-mode M-4 command-prompt -Np'(repeat)' -I4 'send -N \"%%%\"'",
+		"bind -Tcopy-mode M-5 command-prompt -Np'(repeat)' -I5 'send -N \"%%%\"'",
+		"bind -Tcopy-mode M-6 command-prompt -Np'(repeat)' -I6 'send -N \"%%%\"'",
+		"bind -Tcopy-mode M-7 command-prompt -Np'(repeat)' -I7 'send -N \"%%%\"'",
+		"bind -Tcopy-mode M-8 command-prompt -Np'(repeat)' -I8 'send -N \"%%%\"'",
+		"bind -Tcopy-mode M-9 command-prompt -Np'(repeat)' -I9 'send -N \"%%%\"'",
 		"bind -Tcopy-mode M-< send -X history-top",
 		"bind -Tcopy-mode M-> send -X history-bottom",
 		"bind -Tcopy-mode M-R send -X top-line",
@@ -315,25 +362,25 @@ key_bindings_init(void)
 		"bind -Tcopy-mode-vi Space send -X begin-selection",
 		"bind -Tcopy-mode-vi '$' send -X end-of-line",
 		"bind -Tcopy-mode-vi , send -X jump-reverse",
-		"bind -Tcopy-mode-vi / command-prompt -p'search down' 'send -X search-forward \"%%%\"'",
+		"bind -Tcopy-mode-vi / command-prompt -p'(search down)' 'send -X search-forward \"%%%\"'",
 		"bind -Tcopy-mode-vi 0 send -X start-of-line",
-		"bind -Tcopy-mode-vi 1 command-prompt -Np'repeat' -I1 'send -N \"%%%\"'",
-		"bind -Tcopy-mode-vi 2 command-prompt -Np'repeat' -I2 'send -N \"%%%\"'",
-		"bind -Tcopy-mode-vi 3 command-prompt -Np'repeat' -I3 'send -N \"%%%\"'",
-		"bind -Tcopy-mode-vi 4 command-prompt -Np'repeat' -I4 'send -N \"%%%\"'",
-		"bind -Tcopy-mode-vi 5 command-prompt -Np'repeat' -I5 'send -N \"%%%\"'",
-		"bind -Tcopy-mode-vi 6 command-prompt -Np'repeat' -I6 'send -N \"%%%\"'",
-		"bind -Tcopy-mode-vi 7 command-prompt -Np'repeat' -I7 'send -N \"%%%\"'",
-		"bind -Tcopy-mode-vi 8 command-prompt -Np'repeat' -I8 'send -N \"%%%\"'",
-		"bind -Tcopy-mode-vi 9 command-prompt -Np'repeat' -I9 'send -N \"%%%\"'",
-		"bind -Tcopy-mode-vi : command-prompt -p'goto line' 'send -X goto-line \"%%%\"'",
+		"bind -Tcopy-mode-vi 1 command-prompt -Np'(repeat)' -I1 'send -N \"%%%\"'",
+		"bind -Tcopy-mode-vi 2 command-prompt -Np'(repeat)' -I2 'send -N \"%%%\"'",
+		"bind -Tcopy-mode-vi 3 command-prompt -Np'(repeat)' -I3 'send -N \"%%%\"'",
+		"bind -Tcopy-mode-vi 4 command-prompt -Np'(repeat)' -I4 'send -N \"%%%\"'",
+		"bind -Tcopy-mode-vi 5 command-prompt -Np'(repeat)' -I5 'send -N \"%%%\"'",
+		"bind -Tcopy-mode-vi 6 command-prompt -Np'(repeat)' -I6 'send -N \"%%%\"'",
+		"bind -Tcopy-mode-vi 7 command-prompt -Np'(repeat)' -I7 'send -N \"%%%\"'",
+		"bind -Tcopy-mode-vi 8 command-prompt -Np'(repeat)' -I8 'send -N \"%%%\"'",
+		"bind -Tcopy-mode-vi 9 command-prompt -Np'(repeat)' -I9 'send -N \"%%%\"'",
+		"bind -Tcopy-mode-vi : command-prompt -p'(goto line)' 'send -X goto-line \"%%%\"'",
 		"bind -Tcopy-mode-vi \\; send -X jump-again",
-		"bind -Tcopy-mode-vi ? command-prompt -p'search up' 'send -X search-backward \"%%%\"'",
+		"bind -Tcopy-mode-vi ? command-prompt -p'(search up)' 'send -X search-backward \"%%%\"'",
 		"bind -Tcopy-mode-vi A send -X append-selection-and-cancel",
 		"bind -Tcopy-mode-vi B send -X previous-space",
 		"bind -Tcopy-mode-vi D send -X copy-end-of-line",
 		"bind -Tcopy-mode-vi E send -X next-space-end",
-		"bind -Tcopy-mode-vi F command-prompt -1p'jump backward' 'send -X jump-backward \"%%%\"'",
+		"bind -Tcopy-mode-vi F command-prompt -1p'(jump backward)' 'send -X jump-backward \"%%%\"'",
 		"bind -Tcopy-mode-vi G send -X history-bottom",
 		"bind -Tcopy-mode-vi H send -X top-line",
 		"bind -Tcopy-mode-vi J send -X scroll-down",
@@ -341,13 +388,13 @@ key_bindings_init(void)
 		"bind -Tcopy-mode-vi L send -X bottom-line",
 		"bind -Tcopy-mode-vi M send -X middle-line",
 		"bind -Tcopy-mode-vi N send -X search-reverse",
-		"bind -Tcopy-mode-vi T command-prompt -1p'jump to backward' 'send -X jump-to-backward \"%%%\"'",
+		"bind -Tcopy-mode-vi T command-prompt -1p'(jump to backward)' 'send -X jump-to-backward \"%%%\"'",
 		"bind -Tcopy-mode-vi V send -X select-line",
 		"bind -Tcopy-mode-vi W send -X next-space",
 		"bind -Tcopy-mode-vi ^ send -X back-to-indentation",
 		"bind -Tcopy-mode-vi b send -X previous-word",
 		"bind -Tcopy-mode-vi e send -X next-word-end",
-		"bind -Tcopy-mode-vi f command-prompt -1p'jump forward' 'send -X jump-forward \"%%%\"'",
+		"bind -Tcopy-mode-vi f command-prompt -1p'(jump forward)' 'send -X jump-forward \"%%%\"'",
 		"bind -Tcopy-mode-vi g send -X history-top",
 		"bind -Tcopy-mode-vi h send -X cursor-left",
 		"bind -Tcopy-mode-vi j send -X cursor-down",
@@ -356,7 +403,7 @@ key_bindings_init(void)
 		"bind -Tcopy-mode-vi n send -X search-again",
 		"bind -Tcopy-mode-vi o send -X other-end",
 		"bind -Tcopy-mode-vi q send -X cancel",
-		"bind -Tcopy-mode-vi t command-prompt -1p'jump to forward' 'send -X jump-to-forward \"%%%\"'",
+		"bind -Tcopy-mode-vi t command-prompt -1p'(jump to forward)' 'send -X jump-to-forward \"%%%\"'",
 		"bind -Tcopy-mode-vi v send -X rectangle-toggle",
 		"bind -Tcopy-mode-vi w send -X next-word",
 		"bind -Tcopy-mode-vi { send -X previous-paragraph",
@@ -399,11 +446,11 @@ key_bindings_read_only(struct cmdq_item *item, __unused void *data)
 }
 
 void
-key_bindings_dispatch(struct key_binding *bd, struct client *c,
-    struct mouse_event *m, struct cmd_find_state *fs)
+key_bindings_dispatch(struct key_binding *bd, struct cmdq_item *item,
+    struct client *c, struct mouse_event *m, struct cmd_find_state *fs)
 {
 	struct cmd		*cmd;
-	struct cmdq_item	*item;
+	struct cmdq_item	*new_item;
 	int			 readonly;
 
 	readonly = 1;
@@ -412,10 +459,14 @@ key_bindings_dispatch(struct key_binding *bd, struct client *c,
 			readonly = 0;
 	}
 	if (!readonly && (c->flags & CLIENT_READONLY))
-		cmdq_append(c, cmdq_get_callback(key_bindings_read_only, NULL));
+		new_item = cmdq_get_callback(key_bindings_read_only, NULL);
 	else {
-		item = cmdq_get_command(bd->cmdlist, fs, m, 0);
-		item->repeat = bd->can_repeat;
-		cmdq_append(c, item);
+		new_item = cmdq_get_command(bd->cmdlist, fs, m, 0);
+		if (bd->flags & KEY_BINDING_REPEAT)
+			new_item->shared->flags |= CMDQ_SHARED_REPEAT;
 	}
+	if (item != NULL)
+		cmdq_insert_after(item, new_item);
+	else
+		cmdq_append(c, new_item);
 }

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 },
@@ -110,12 +112,16 @@ static const struct {
 static key_code
 key_string_search_table(const char *string)
 {
-	u_int	i;
+	u_int	i, user;
 
 	for (i = 0; i < nitems(key_string_table); i++) {
 		if (strcasecmp(string, key_string_table[i].string) == 0)
 			return (key_string_table[i].key);
 	}
+
+	if (sscanf(string, "User%u", &user) == 1 && user < KEYC_NUSER)
+		return (KEYC_USER + user);
+
 	return (KEYC_UNKNOWN);
 }
 
@@ -162,9 +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') {
@@ -247,10 +255,16 @@ 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)
 		return ("FocusOut");
+	if (key == KEYC_PASTE_START)
+		return ("PasteStart");
+	if (key == KEYC_PASTE_END)
+		return ("PasteEnd");
 	if (key == KEYC_MOUSE)
 		return ("Mouse");
 	if (key == KEYC_DRAGGING)
@@ -259,8 +273,16 @@ 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) {
+		snprintf(out, sizeof out, "User%u", (u_int)(key - KEYC_USER));
+		return (out);
+	}
 
 	/*
 	 * Special case: display C-@ as C-Space. Could do this below in

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);