3.1c.

colon-separated SGR sequences contain empty arguments. Reported by Sergey
Nizovtsev.

.github/CONTRIBUTING.md

@@ -0,0 +1,78 @@
+## What should I do before opening an issue?
+
+Before opening an issue, please ensure that:
+
+- Your problem is a specific problem or question or suggestion, not a general
+  complaint.
+
+- `$TERM` inside tmux is screen, screen-256color, tmux or tmux-256color. Check
+  by running `echo $TERM` inside tmux.
+
+- You can reproduce the problem with the latest tmux release, or a build from
+  Git master.
+
+- Your question or issue is not covered [in the
+  manual](https://man.openbsd.org/tmux.1) (run `man tmux`).
+
+- Your problem is not mentioned in [the CHANGES
+  file](https://raw.githubusercontent.com/tmux/tmux/master/CHANGES).
+
+- Nobody else has opened the same issue recently.
+
+## What should I include in an issue?
+
+Please include the output of:
+
+~~~bash
+uname -sp && tmux -V && echo $TERM
+~~~
+
+Also include:
+
+- Your platform (Linux, OS X, or whatever).
+
+- A brief description of the problem with steps to reproduce.
+
+- A minimal tmux config, if you can't reproduce without a config.
+
+- Your terminal, and `$TERM` inside and outside of tmux.
+
+- Logs from tmux (see below).
+
+- At most one or two screenshots, if helpful.
+
+## How do I test without a .tmux.conf?
+
+Run a separate tmux server with `-f/dev/null` to skip loading `.tmux.conf`:
+
+~~~bash
+tmux -Ltest kill-server
+tmux -Ltest -f/dev/null new
+~~~
+
+## How do I get logs from tmux?
+
+Add `-vv` to tmux to create three log files in the current directory. If you can
+reproduce without a configuration file:
+
+~~~bash
+tmux -Ltest kill-server
+tmux -vv -Ltest -f/dev/null new
+~~~
+
+Or if you need your configuration:
+
+~~~base
+tmux kill-server
+tmux -vv new
+~~~
+
+The log files are:
+
+- `tmux-server*.log`: server log file.
+
+- `tmux-client*.log`: client log file.
+
+- `tmux-out*.log`: output log file.
+
+Please attach the log files to your issue.

.github/FUNDING.yml

@@ -0,0 +1,2 @@
+github: nicm
+liberapay: tmux

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,22 @@
+### Issue description
+
+Please read https://github.com/tmux/tmux/blob/master/.github/CONTRIBUTING.md
+before opening an issue.
+
+If you have upgraded, make sure your issue is not covered in the CHANGES file
+for your version: https://raw.githubusercontent.com/tmux/tmux/master/CHANGES
+
+Describe the problem and the steps to reproduce. Add a minimal tmux config if
+necessary. Screenshots can be helpful, but no more than one or two.
+
+Do not report bugs (crashes, incorrect behaviour) without reproducing on a tmux
+built from the latest code in Git.
+
+### Required information
+
+Please provide the following information:
+
+* tmux version (`tmux -V`).
+* Platform (`uname -sp`).
+* $TERM inside and outside of tmux (`echo $TERM`).
+* Logs from tmux (`tmux kill-server; tmux -vv new`).

.github/README.md

@@ -0,0 +1,83 @@
+# Welcome to tmux!
+
+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.
+
+## Dependencies
+
+tmux depends on [libevent](https://libevent.org) 2.x, available from [this
+page](https://github.com/libevent/libevent/releases/latest).
+
+It also depends on [ncurses](https://www.gnu.org/software/ncurses/), available
+from [this page](https://invisible-mirror.net/archives/ncurses/).
+
+## Installation
+
+### From release tarball
+
+To build and install tmux from a release tarball, use:
+
+~~~bash
+./configure && make
+sudo make install
+~~~
+
+tmux can use the utempter library to update utmp(5), if it is installed - run
+configure with `--enable-utempter` to enable this.
+
+### From version control
+
+To get and build the latest from version control - note that this requires
+`autoconf`, `automake` and `pkg-config`:
+
+~~~bash
+git clone https://github.com/tmux/tmux.git
+cd tmux
+sh autogen.sh
+./configure && make
+~~~
+
+## Contributing
+
+Bug reports, feature suggestions and especially code contributions are most
+welcome. Please send by email to:
+
+tmux-users@googlegroups.com
+
+Or open a GitHub issue or pull request. **Please read [this
+document](CONTRIBUTING.md) before opening an issue.**
+
+There is [a list of suggestions for contributions](https://github.com/tmux/tmux/wiki/Contributing).
+Please feel free to ask on the mailing list if you're thinking of working on something or need
+further information.
+
+## Documentation
+
+For documentation on using tmux, see the tmux.1 manpage. View it from the
+source tree with:
+
+~~~bash
+nroff -mdoc tmux.1|less
+~~~
+
+A small example configuration is in `example_tmux.conf`.
+
+And a bash(1) completion file at:
+
+https://github.com/imomaliev/tmux-bash-completion
+
+For debugging, run tmux with `-v` or `-vv` to generate server and client log 
+files in the current directory.
+
+## Support
+
+The tmux mailing list for general discussion and bug reports is:
+
+https://groups.google.com/forum/#!forum/tmux-users
+
+Subscribe by sending an email to:
+
+tmux-users+subscribe@googlegroups.com

.github/lock.yml

@@ -0,0 +1,10 @@
+daysUntilLock: 180
+skipCreatedBefore: false
+exemptLabels: []
+lockLabel: false
+lockComment: >
+  This thread has been automatically locked since there has not been
+  any recent activity after it was closed. Please open a new issue for
+  related bugs.
+setLockReason: false
+#only: issues

.gitignore

@@ -18,3 +18,4 @@ Makefile.in
 configure
 tmux.1.*
 *.dSYM
+cmd-parse.c

.travis.yml

@@ -1,10 +1,16 @@
 language: c
-matrix:
-    include:
-        - compiler: gcc
-        - compiler: clang
-          env: CFLAGS="-g -O2"
+
+os:
+    - linux
+    - osx
+
+compiler:
+    - gcc
+    - clang
+
 before_install:
-    - sudo apt-get update -qq
-    - sudo apt-get -y install debhelper autotools-dev dh-autoreconf file libncurses5-dev libevent-dev pkg-config libutempter-dev build-essential
-script: (CFLAGS= ./autogen.sh) && ./configure --enable-debug && make
+    - if [ "$TRAVIS_OS_NAME" = "linux" ]; then sudo apt-get update -qq; fi
+    - if [ "$TRAVIS_OS_NAME" = "linux" ]; then sudo apt-get -y install bison autotools-dev libncurses5-dev libevent-dev pkg-config libutempter-dev build-essential; fi
+
+script:
+    - ./autogen.sh && ./configure && make

CHANGES

@@ -1,8 +1,295 @@
-CHANGES FROM 2.9 to 2.9a
+CHANGED FROM 3.1b TO 3.1c
+
+* Fix a stack overflow on colon-separated CSI parsing.
+
+CHANGES FROM 3.1a TO 3.1b
+
+* Fix build on systems without sys/queue.h.
+
+* Fix crash when allow-rename is on and an empty name is set.
+
+CHANGES FROM 3.1 TO 3.1a
+
+* Do not close stdout prematurely in control mode since it is needed to print
+  exit messages. Prevents hanging when detaching with iTerm2.
+
+CHANGES FROM 3.0a TO 3.1
+
+* Only search the visible part of the history when marking (highlighting)
+  search terms. This is much faster than searching the whole history and solves
+  problems with large histories. The count of matches shown is now the visible
+  matches rather than all matches.
+
+* Search using regular expressions in copy mode. search-forward and
+  search-backward use regular expressions by default; the incremental versions
+  do not.
+
+* Turn off mouse mode 1003 as well as the rest when exiting.
+
+* Add selection_active format for when the selection is present but not moving
+  with the cursor.
+
+* Fix dragging with modifier keys, so binding keys such as C-MouseDrag1Pane and
+  C-MouseDragEnd1Pane now work.
+
+* Add -a to list-keys to also list keys without notes with -N.
+
+* Do not jump to next word end if already on a word end when selecting a word;
+  fixes select-word with single character words and vi(1) keys.
+
+* Fix top and bottom pane calculation with pane border status enabled.
+
+* Add support for adding a note to a key binding (with bind-key -N) and use
+  this to add descriptions to the default key bindings. A new -N flag to
+  list-keys shows key bindings with notes. Change the default ? binding to use
+  this to show a readable summary of keys. Also extend command-prompt to return
+  the name of the key pressed and add a default binding (/) to show the note
+  for the next key pressed.
+
+* Add support for the iTerm2 DSR 1337 sequence to get the terminal version.
+
+* Treat plausible but invalid keys (like C-BSpace) as literal like any other
+  unrecognised string passed to send-keys.
+
+* Detect iTerm2 and enable use of DECSLRM (much faster with horizontally split
+  windows).
+
+* Add -Z to default switch-client command in tree mode.
+
+* Add ~ to quoted characters for %%%.
+
+* Document client exit messages in the manual page.
+
+* Do not let read-only clients limit the size, unless all clients are
+  read-only.
+
+* Add a number of new formats to inspect what sessions and clients a window is
+  present or active in.
+
+* Change file reading and writing to go through the client if necessary. This
+  fixes commands like "tmux loadb /dev/fd/X". Also modify source-file to
+  support "-" for standard input, like load-buffer and save-buffer.
+
+* Add ~/.config/tmux/tmux.conf to the default search path for configuration
+  files.
+
+* Bump the escape sequence timeout to five seconds to allow for longer
+  legitimate sequences.
+
+* Make a best effort to set xpixel and ypixel for each pane and add formats for
+  them.
+
+* Add push-default to status-left and status-right in status-format[0].
+
+* Do not clear search marks on cursor movement with vi(1) keys.
+
+* Add p format modifier for padding to width and allow multiple substitutions
+  in a single format.
+
+* Add -f for full size to join-pane (like split-window).
+
+* Do not use bright when emulating 256 colours on an 8 colour terminal because
+  it is also bold on some terminals.
+
+* Make select-pane -P set window-active-style also to match previous behaviour.
+
+* Do not truncate list-keys output.
+
+* Turn automatic-rename back on if the \033k rename escape sequence is used
+  with an empty name.
+
+* Add support for percentage sizes for resize-pane ("-x 10%"). Also change
+  split-window and join-pane -l to accept similar percentages and deprecate the
+  -p flag.
+
+* Add -F flag to send-keys to expand formats in search-backward and forward
+  copy mode commands and copy_cursor_word and copy_cursor_line formats for word
+  and line at cursor in copy mode. Use for default # and * binding with vi(1)
+  keys.
+
+* Add formats for word and line at cursor position in copy mode.
+
+* Add formats for cursor and selection position in copy mode.
+
+* Support all the forms of RGB colour strings in OSC sequences rather than
+  requiring two digits.
+
+* Limit lazy resize to panes in attached sessions only.
+
+* Add an option to set the key sent by backspace for those whose system uses ^H
+  rather than ^?.
+
+* Change new-session -A without a session name (that is, no -s option also) to
+  attach to the best existing session like attach-session rather than a new
+  one.
+
+* Add a "latest" window-size option which tries to size windows based on the
+  most recently used client. This is now the default.
+
+* Add simple support for OSC 7 (result is available in the pane_path format).
+
+* Add push-default and pop-default for styles which change the colours and
+  attributes used for #[default]. These are used in status-format to restore
+  the behaviour of window-status-style being the default for
+  window-status-format.
+
+* Add window_marked_flag.
+
+* Add cursor-down-and-cancel in copy mode.
+
+* Default to previous search string for search-forward and search-backward.
+
+* Add -Z flag to rotate-window, select-pane, swap-pane, switch-client to
+  preserve zoomed state.
+
+* Add -N to capture-pane to preserve trailing spaces.
+
+* Add reverse sorting in tree, client and buffer modes.
+
+CHANGES FROM 3.0 TO 3.0a
+
+* Do not require REG_STARTEND.
+
+* Respawn panes or windows correctly if default-command is set.
+
+* Add missing option for after-kill-pane hook.
+
+* Fix for crash with a format variable that doesn't exist.
+
+* Do not truncate list-keys output on some platforms.
+
+* Do not crash when restoring a layout with only one pane.
+
+CHANGES FROM 2.9 TO 3.0
+
+* Workaround invalid layout strings generated by older tmux versions and add
+  some additional sanity checks
+
+* xterm 348 now disables margins when resized, so send DECLRMM again after
+  resize.
+
+* Add support for the SD (scroll down) escape sequence.
+
+* Expand arguments to C and s format modifiers to match the m modifier.
+
+* Add support for underscore colours (Setulc capability must be added with
+  terminal-overrides as described in tmux(1)).
+
+* Add a "fill" style attribute for the fill colour of the drawing area (where
+  appropriate).
+
+* New -H flag to send-keys to send literal keys.
+
+* Format variables for pane mouse modes (mouse_utf8_flag and mouse_sgr_flag)
+  and for origin mode (origin_flag).
+
+* Add -F to refresh-client for flags for control mode clients, only one flag
+  (no-output) supported at the moment.
+
+* Add a few vi(1) keys for menus.
+
+* Add pane options, set with set-option -p and displayed with show-options -p.
+  Pane options inherit from window options (so every pane option is also
+  a window option). The pane style is now configured by setting window-style
+  and window-active-style in the pane options; select-pane -P and -g now change
+  the option but are no longer documented.
+
+* Do not document set-window-option and show-window-options. set-option -w and
+  show-options -w should be used instead.
+
+* Add a -A flag to show-options to show parent options as well (they are marked
+  with a *).
+
+* Resize panes lazily - do not resize unless they are in an attached, active
+  window.
+
+* Add regular expression support for the format search, match and substitute
+  modifiers and make them able to ignore case. find-window now accepts -r to
+  use regular expressions.
+
+* Do not use $TMUX to find the session because for windows in multiple sessions
+  it is wrong as often as it is right, and for windows in one session it is
+  pointless. Instead use TMUX_PANE if it is present.
+
+* Do not always resize the window back to its original size after applying a
+  layout, keep it at the layout size until it must be resized (for example when
+  attached and window-size is not manual).
+
+* Add new-session -X and attach-session -x to send SIGHUP to parent when
+  detaching (like detach-client -P).
+
+* Support for octal escapes in strings (such as \007) and improve list-keys
+  output so it parses correctly if copied into a configuration file.
+
+* INCOMPATIBLE: Add a new {} syntax to the configuration file. This is a string
+  similar to single quotes but also includes newlines and allows commands that
+  take other commands as string arguments to be expressed more clearly and
+  without additional escaping.
+
+  A literal { and } or a string containing { or } must now be escaped or
+  quoted, for example '{' and '}' instead of { or }, or 'X#{foo}' instead of
+  X#{foo}.
+
+* New <, >, <= and >= comparison operators for formats.
+
+* Improve escaping of special characters in list-keys output.
+
+* INCOMPATIBLE: tmux's configuration parsing has changed to use yacc(1). There
+  is one incompatible change: a \ on its own must be escaped or quoted as
+  either \\ or '\' (the latter works on older tmux versions).
+
+  Entirely the same parser is now used for parsing the configuration file
+  and for string commands. This means that constructs previously only
+  available in .tmux.conf, such as %if, can now be used in string commands
+  (for example, those given to if-shell - not commands invoked from the
+  shell, they are still parsed by the shell itself).
+
+* Add support for the overline attribute (SGR 53). The Smol capability is
+  needed in terminal-overrides.
+
+* Add the ability to create simple menus. Introduces new command
+  display-menu. Default menus are bound to MouseDown3 on the status line;
+  MouseDown3 or M-MouseDown3 on panes; MouseDown3 in tree, client and
+  buffer modes; and C-b < and >.
+
+* Allow panes to be empty (no command). They can be created either by piping to
+  split-window -I, or by passing an empty command ('') to split-window. Output
+  can be sent to an existing empty window with display-message -I.
+
+* Add keys to jump between matching brackets (emacs C-M-f and C-M-b, vi %).
+
+* Add a -e flag to new-window, split-window, respawn-window, respawn-pane to
+  pass environment variables into the newly created process.
+
+* Hooks are now stored in the options tree as array options, allowing them to
+  have multiple separate commands. set-hook and show-hooks remain but
+  set-option and show-options can now also be used (show-options will only show
+  hooks if given the -H flag). Hooks with multiple commands are run in index
+  order.
+
+* Automatically scroll if dragging to create a selection with the mouse and the
+  cursor reaches the top or bottom line.
+
+* Add -no-clear variants of copy-selection and copy-pipe which do not clear the
+  selection after copying. Make copy-pipe clear the selection by default to be
+  consistent with copy-selection.
+
+* Add an argument to copy commands to set the prefix for the buffer name, this
+  (for example) allows buffers for different sessions to be named separately.
+
+* Update session activity on focus event.
+
+* Pass target from source-file into the config file parser so formats in %if
+  and %endif have access to more useful variables.
+
+* Add the ability to infer an option type (server, session, window) from its
+  name to show-options (it was already present in set-option).
+
+CHANGES FROM 2.9 TO 2.9a
 
 * Fix bugs in select-pane and the main-horizontal and main-vertical layouts.
 
-CHANGES FROM 2.8 to 2.9
+CHANGES FROM 2.8 TO 2.9
 
 * Attempt to preserve horizontal cursor position as well as vertical with
   reflow.
@@ -127,7 +414,7 @@ CHANGES FROM 2.8 to 2.9
   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
+CHANGES FROM 2.7 TO 2.8
 
 * Make display-panes block the client until a pane is chosen or it
   times out.

CONTRIBUTING

@@ -1,33 +0,0 @@
-When reporting issues:
-
-YOU MUST INCLUDE THE TMUX VERSION
-
-DO NOT OPEN AN ISSUE THAT DOES NOT MENTION THE TMUX VERSION
-
-Please also include:
-
-- your platform (Linux, OS X, or whatever);
-- a brief description of the problem with steps to reproduce;
-- a minimal tmux config, if you can't reproduce without a config;
-- your terminal, and $TERM inside and outside of tmux;
-- logs from tmux (see below);
-- at most one or two screenshots, if helpful.
-
-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 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
-case before opening an issue.
-
-To run tmux without a config and get logs, run:
-
-    tmux -Ltest kill-server
-    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.

COPYING

@@ -1,10 +1,7 @@
 THIS IS FOR INFORMATION ONLY, CODE IS UNDER THE LICENCE AT THE TOP OF ITS FILE.
 
-The README, CHANGES, FAQ and TODO files are licensed under the ISC
-license. Files under examples/ remain copyright their authors unless otherwise
-stated in the file but permission has been received to distribute them with
-tmux. All other files have a license and copyright notice at their start,
-typically:
+The README, CHANGES, FAQ and TODO files are licensed under the ISC license. All
+other files have a license and copyright notice at their start, typically:
 
 Copyright (c) <author>
 

ISSUE_TEMPLATE

@@ -1 +0,0 @@
-Please read https://raw.githubusercontent.com/tmux/tmux/master/CONTRIBUTING

Makefile.am

@@ -2,15 +2,18 @@
 
 # Obvious program stuff.
 bin_PROGRAMS = tmux
-CLEANFILES = tmux.1.mdoc tmux.1.man
+CLEANFILES = tmux.1.mdoc tmux.1.man cmd-parse.c
 
 # Distribution tarball options.
 EXTRA_DIST = \
-	CHANGES README README.ja COPYING example_tmux.conf compat/*.[ch] \
+	CHANGES README README.ja COPYING example_tmux.conf \
 	osdep-*.c mdoc2man.awk tmux.1
+dist_EXTRA_tmux_SOURCES = compat/*.[ch]
 
 # Preprocessor flags.
-AM_CPPFLAGS += @XOPEN_DEFINES@ -DTMUX_CONF="\"$(sysconfdir)/tmux.conf\""
+AM_CPPFLAGS += @XOPEN_DEFINES@ \
+	-DTMUX_VERSION="\"@VERSION@\"" \
+	-DTMUX_CONF="\"$(sysconfdir)/tmux.conf:~/.tmux.conf:~/.config/tmux/tmux.conf\""
 
 # Additional object files.
 LDADD = $(LIBOBJS)
@@ -71,6 +74,7 @@ dist_tmux_SOURCES = \
 	cmd-confirm-before.c \
 	cmd-copy-mode.c \
 	cmd-detach-client.c \
+	cmd-display-menu.c \
 	cmd-display-message.c \
 	cmd-display-panes.c \
 	cmd-find-window.c \
@@ -87,12 +91,12 @@ dist_tmux_SOURCES = \
 	cmd-list-panes.c \
 	cmd-list-sessions.c \
 	cmd-list-windows.c \
-	cmd-list.c \
 	cmd-load-buffer.c \
 	cmd-lock-server.c \
 	cmd-move-window.c \
 	cmd-new-session.c \
 	cmd-new-window.c \
+	cmd-parse.y \
 	cmd-paste-buffer.c \
 	cmd-pipe-pane.c \
 	cmd-queue.c \
@@ -112,14 +116,12 @@ dist_tmux_SOURCES = \
 	cmd-send-keys.c \
 	cmd-set-buffer.c \
 	cmd-set-environment.c \
-	cmd-set-hook.c \
 	cmd-set-option.c \
 	cmd-show-environment.c \
 	cmd-show-messages.c \
 	cmd-show-options.c \
 	cmd-source-file.c \
 	cmd-split-window.c \
-	cmd-string.c \
 	cmd-swap-pane.c \
 	cmd-swap-window.c \
 	cmd-switch-client.c \
@@ -131,11 +133,11 @@ dist_tmux_SOURCES = \
 	control-notify.c \
 	control.c \
 	environ.c \
+	file.c \
 	format.c \
 	format-draw.c \
 	grid-view.c \
 	grid.c \
-	hooks.c \
 	input-keys.c \
 	input.c \
 	job.c \
@@ -145,6 +147,7 @@ dist_tmux_SOURCES = \
 	layout-set.c \
 	layout.c \
 	log.c \
+	menu.c \
 	mode-tree.c \
 	names.c \
 	notify.c \
@@ -152,6 +155,7 @@ dist_tmux_SOURCES = \
 	options.c \
 	paste.c \
 	proc.c \
+	regsub.c \
 	resize.c \
 	screen-redraw.c \
 	screen-write.c \
@@ -160,6 +164,7 @@ dist_tmux_SOURCES = \
 	server-fn.c \
 	server.c \
 	session.c \
+	spawn.c \
 	status.c \
 	style.c \
 	tmux.c \

README

@@ -6,13 +6,17 @@ screen and continue running in the background, then later reattached.
 
 This release runs on OpenBSD, FreeBSD, NetBSD, Linux, OS X and Solaris.
 
-tmux depends on libevent 2.x. Download it from:
+* Dependencies
 
-	http://libevent.org
+tmux depends on libevent 2.x, available from:
+
+	https://github.com/libevent/libevent/releases/latest
 
 It also depends on ncurses, available from:
 
-	http://invisible-island.net/ncurses/
+	https://invisible-mirror.net/archives/ncurses/
+
+* Installation
 
 To build and install tmux from a release tarball, use:
 
@@ -22,50 +26,50 @@ To build and install tmux from a release tarball, use:
 tmux can use the utempter library to update utmp(5), if it is installed - run
 configure with --enable-utempter to enable this.
 
-To get and build the latest from version control:
+To get and build the latest from version control - note that this requires
+autoconf, automake and pkg-config:
 
 	$ git clone https://github.com/tmux/tmux.git
 	$ cd tmux
 	$ 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 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
-
-A small example configuration in example_tmux.conf.
-
-And a bash(1) completion file at:
-
-	https://github.com/imomaliev/tmux-bash-completion
-
-For debugging, running tmux with -v or -vv will generate server and client log
-files in the current directory.
-
-tmux mailing lists are available. For general discussion and bug reports:
-
-	https://groups.google.com/forum/#!forum/tmux-users
-
-And for Git commit emails:
-
-	https://groups.google.com/forum/#!forum/tmux-git
-
-Subscribe by sending an email to <tmux-users+subscribe@googlegroups.com>.
+* Contributing
 
 Bug reports, feature suggestions and especially code contributions are most
 welcome. Please send by email to:
 
 	tmux-users@googlegroups.com
 
-This file and the CHANGES, FAQ, SYNCING and TODO files are licensed under the
-ISC license. All other files have a license and copyright notice at their start.
+Or open a GitHub issue or pull request.
 
--- Nicholas Marriott <nicholas.marriott@gmail.com>
+* Documentation
+
+For documentation on using tmux, see the tmux.1 manpage. View it from the
+source tree with:
+
+	$ nroff -mdoc tmux.1|less
+
+A small example configuration is in example_tmux.conf.
+
+A bash(1) completion file is at:
+
+	https://github.com/imomaliev/tmux-bash-completion
+
+For debugging, run tmux with -v and -vv to generate server and client log files
+in the current directory.
+
+* Support
+
+The tmux mailing list for general discussion and bug reports is:
+
+	https://groups.google.com/forum/#!forum/tmux-users
+
+Subscribe by sending an email to:
+
+	tmux-users+subscribe@googlegroups.com
+
+* License
+
+This file and the CHANGES files are licensed under the ISC license. All other
+files have a license and copyright notice at their start.

TODO

@@ -1,161 +0,0 @@
-- command bits and pieces:
-	* allow multiple targets: fnmatch for -t/-c, for example detach all
-	  clients with -t*
-	* ' and " should be parsed the same (eg "\e" vs '\e') in config
-	  and command prompt
-	* last-pane across sessions
-	* resize-pane -p to match split-window -p
-	* flag to wait-for to have a timeout and/or to stop waiting when the
-	  client gets a signal
-
-- make command sequences more usable
-	* don't require space after ;
-	* options for error handling: && and ||?
-
-- options bits and pieces:
-	* way to set socket path from config file
-
-- format improvements:
-	* some way to pad # stuff with spaces
-	* formats to show if a window is linked into multiple sessions, into
-	  multiple attached sessions, and is the active window in multiple
-	  attached sessions?
-	* comparison operators like < and > (for #{version}?)
-
-- improve monitor-*:
-	* straighten out rules for multiple clients
-	* think about what happens across sessions
-	* monitor changes within a region
-	* perhaps monitor /all/ panes in the window not just one
-
-- improve mouse support:
-	* bind commands to mouse in different areas?
-	* commands executed when clicking on a pattern (URL)
-
-- warts on current naming:
-	* display-time but message-fg/bg/attr
-	* list-* vs show-*
-
-- copy/paste improvements:
-	* paste w/o trailing whitespace
-	* command to toggle selection not to move it in copy-mode
-	* regex searching
-	* searching in copy mode should unwrap lines, so if you search for "foobar"
-	  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)
-	* 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
-	* maybe keep last layout + size around and if size reverts just put it
-	  back
-	* revamp layouts: they are too complicated, should be more closely
-	  integrated, should support hints, layout sets should just be a
-	  special case of custom layouts, and we should support panes that are
-	  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
-	* 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
-	  options list with each option having a type (window or session), then
-	  options on window, on session, and global. for window options we look
-	  window->session->global, and for session we look session->global.
-	  problem: what about windows in multiple sessions? there are contexts
-	  where we do not know which session, or where multiple choices makes
-	  no sense... could at least have one global list for all types of
-	  global options and keep separate window,session lists
-	* the way pane, window, session destroy is handled is too complicated
-	  and the distinction between session.c, window.c and server-fn.c
-	  functions is not clear. could we just have kill_pane(),
-	  kill_window(), unlink_window(), kill_session() that fix up all data
-	  structures (flagging sessions as dead) and return a value to say
-	  whether clients need to be checked for dead sessions? sort of like
-	  session_detach now but more so. or some other scheme to make it
-	  simpler and clearer? also would be nice to remove/rename server-fn.c
-	* more readable way to work out the various things commands need to
-	  know about the client, notably:
-		- is this the config file? (cmdq->c == NULL)
-		- is this a command client? (cmdq->c != NULL &&
-		  cmdq->c->session == NULL)
-		- is this a control client?
-		- can i do stdin or stdout to this client?
-	  or even guarantee that cmdq->c != NULL and provide a better way to
-	  tell when in the config file - then we use cmdq->c if we need a
-	  client w/o a session else cmd_current_client
-
-- miscellaneous
-	* link panes into multiple windows
-	* live update: server started with -U connects to server, requests
-	  sessions and windows, receives file descriptors
-	* there are inconsistencies in what we get from old shell and what
-	  comes from config for new sessions and windows. likewise, panes and
-	  jobs and run-shell and lock command all start with slightly different
-	  environments
-	* multiline status line? separate command prompt and status line?
-	* automatic pane logging
-	* 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. 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
-
-- 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.

arguments.c

@@ -28,9 +28,16 @@
  * Manipulate command arguments.
  */
 
+struct args_value {
+	char			*value;
+	TAILQ_ENTRY(args_value)	 entry;
+};
+TAILQ_HEAD(args_values, args_value);
+
 struct args_entry {
 	u_char			 flag;
-	char			*value;
+	struct args_values	 values;
+	u_int			 count;
 	RB_ENTRY(args_entry)	 entry;
 };
 
@@ -67,6 +74,7 @@ args_parse(const char *template, int argc, char **argv)
 
 	optreset = 1;
 	optind = 1;
+	optarg = NULL;
 
 	while ((opt = getopt(argc, argv, template)) != -1) {
 		if (opt < 0)
@@ -76,6 +84,7 @@ args_parse(const char *template, int argc, char **argv)
 			return (NULL);
 		}
 		args_set(args, opt, optarg);
+		optarg = NULL;
 	}
 	argc -= optind;
 	argv += optind;
@@ -92,12 +101,18 @@ args_free(struct args *args)
 {
 	struct args_entry	*entry;
 	struct args_entry	*entry1;
+	struct args_value	*value;
+	struct args_value	*value1;
 
 	cmd_free_argv(args->argc, args->argv);
 
 	RB_FOREACH_SAFE(entry, args_tree, &args->tree, entry1) {
 		RB_REMOVE(args_tree, &args->tree, entry);
-		free(entry->value);
+		TAILQ_FOREACH_SAFE(value, &entry->values, entry, value1) {
+			TAILQ_REMOVE(&entry->values, value, entry);
+			free(value->value);
+			free(value);
+		}
 		free(entry);
 	}
 
@@ -123,94 +138,146 @@ args_print_add(char **buf, size_t *len, const char *fmt, ...)
 	free(s);
 }
 
+/* Add value to string. */
+static void
+args_print_add_value(char **buf, size_t *len, struct args_entry *entry,
+    struct args_value *value)
+{
+	char	*escaped;
+
+	if (**buf != '\0')
+		args_print_add(buf, len, " -%c ", entry->flag);
+	else
+		args_print_add(buf, len, "-%c ", entry->flag);
+
+	escaped = args_escape(value->value);
+	args_print_add(buf, len, "%s", escaped);
+	free(escaped);
+}
+
+/* Add argument to string. */
+static void
+args_print_add_argument(char **buf, size_t *len, const char *argument)
+{
+	char	*escaped;
+
+	if (**buf != '\0')
+		args_print_add(buf, len, " ");
+
+	escaped = args_escape(argument);
+	args_print_add(buf, len, "%s", escaped);
+	free(escaped);
+}
+
 /* Print a set of arguments. */
 char *
 args_print(struct args *args)
 {
 	size_t		 	 len;
-	char			*buf, *escaped;
-	int			 i, flags;
+	char			*buf;
+	int			 i;
+	u_int			 j;
 	struct args_entry	*entry;
-	static const char	 quoted[] = " #\"';$";
+	struct args_value	*value;
 
 	len = 1;
 	buf = xcalloc(1, len);
 
 	/* Process the flags first. */
 	RB_FOREACH(entry, args_tree, &args->tree) {
-		if (entry->value != NULL)
+		if (!TAILQ_EMPTY(&entry->values))
 			continue;
 
 		if (*buf == '\0')
 			args_print_add(&buf, &len, "-");
-		args_print_add(&buf, &len, "%c", entry->flag);
+		for (j = 0; j < entry->count; j++)
+			args_print_add(&buf, &len, "%c", entry->flag);
 	}
 
 	/* Then the flags with arguments. */
 	RB_FOREACH(entry, args_tree, &args->tree) {
-		if (entry->value == NULL)
-			continue;
-
-		if (*buf != '\0')
-			args_print_add(&buf, &len, " -%c ", entry->flag);
-		else
-			args_print_add(&buf, &len, "-%c ", entry->flag);
-
-		flags = VIS_OCTAL|VIS_TAB|VIS_NL;
-		if (entry->value[strcspn(entry->value, quoted)] != '\0')
-			flags |= VIS_DQ;
-		utf8_stravis(&escaped, entry->value, flags);
-		if (flags & VIS_DQ)
-			args_print_add(&buf, &len, "\"%s\"", escaped);
-		else
-			args_print_add(&buf, &len, "%s", escaped);
-		free(escaped);
+		TAILQ_FOREACH(value, &entry->values, entry)
+			args_print_add_value(&buf, &len, entry, value);
 	}
 
 	/* And finally the argument vector. */
-	for (i = 0; i < args->argc; i++) {
-		if (*buf != '\0')
-			args_print_add(&buf, &len, " ");
-
-		flags = VIS_OCTAL|VIS_TAB|VIS_NL;
-		if (args->argv[i][strcspn(args->argv[i], quoted)] != '\0')
-			flags |= VIS_DQ;
-		utf8_stravis(&escaped, args->argv[i], flags);
-		if (flags & VIS_DQ)
-			args_print_add(&buf, &len, "\"%s\"", escaped);
-		else
-			args_print_add(&buf, &len, "%s", escaped);
-		free(escaped);
-	}
+	for (i = 0; i < args->argc; i++)
+		args_print_add_argument(&buf, &len, args->argv[i]);
 
 	return (buf);
 }
 
+/* Escape an argument. */
+char *
+args_escape(const char *s)
+{
+	static const char	 quoted[] = " #\"';${}";
+	char			*escaped, *result;
+	int			 flags;
+
+	if (*s == '\0')
+		return (xstrdup(s));
+	if (s[0] != ' ' &&
+	    (strchr(quoted, s[0]) != NULL || s[0] == '~') &&
+	    s[1] == '\0') {
+		xasprintf(&escaped, "\\%c", s[0]);
+		return (escaped);
+	}
+
+	flags = VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL;
+	if (s[strcspn(s, quoted)] != '\0')
+		flags |= VIS_DQ;
+	utf8_stravis(&escaped, s, flags);
+
+	if (flags & VIS_DQ) {
+		if (*escaped == '~')
+			xasprintf(&result, "\"\\%s\"", escaped);
+		else
+			xasprintf(&result, "\"%s\"", escaped);
+	} else {
+		if (*escaped == '~')
+			xasprintf(&result, "\\%s", escaped);
+		else
+			result = xstrdup(escaped);
+	}
+	free(escaped);
+	return (result);
+}
+
 /* Return if an argument is present. */
 int
 args_has(struct args *args, u_char ch)
 {
-	return (args_find(args, ch) != NULL);
+	struct args_entry	*entry;
+
+	entry = args_find(args, ch);
+	if (entry == NULL)
+		return (0);
+	return (entry->count);
 }
 
 /* Set argument value in the arguments tree. */
 void
-args_set(struct args *args, u_char ch, const char *value)
+args_set(struct args *args, u_char ch, const char *s)
 {
 	struct args_entry	*entry;
+	struct args_value	*value;
 
-	/* Replace existing argument. */
-	if ((entry = args_find(args, ch)) != NULL) {
-		free(entry->value);
-		entry->value = NULL;
-	} else {
+	entry = args_find(args, ch);
+	if (entry == NULL) {
 		entry = xcalloc(1, sizeof *entry);
 		entry->flag = ch;
+		entry->count = 1;
+		TAILQ_INIT(&entry->values);
 		RB_INSERT(args_tree, &args->tree, entry);
-	}
+	} else
+		entry->count++;
 
-	if (value != NULL)
-		entry->value = xstrdup(value);
+	if (s != NULL) {
+		value = xcalloc(1, sizeof *value);
+		value->value = xstrdup(s);
+		TAILQ_INSERT_TAIL(&entry->values, value, entry);
+	}
 }
 
 /* Get argument value. Will be NULL if it isn't present. */
@@ -221,7 +288,34 @@ args_get(struct args *args, u_char ch)
 
 	if ((entry = args_find(args, ch)) == NULL)
 		return (NULL);
-	return (entry->value);
+	return (TAILQ_LAST(&entry->values, args_values)->value);
+}
+
+/* Get first value in argument. */
+const char *
+args_first_value(struct args *args, u_char ch, struct args_value **value)
+{
+	struct args_entry	*entry;
+
+	if ((entry = args_find(args, ch)) == NULL)
+		return (NULL);
+
+	*value = TAILQ_FIRST(&entry->values);
+	if (*value == NULL)
+		return (NULL);
+	return ((*value)->value);
+}
+
+/* Get next value in argument. */
+const char *
+args_next_value(struct args_value **value)
+{
+	if (*value == NULL)
+		return (NULL);
+	*value = TAILQ_NEXT(*value, entry);
+	if (*value == NULL)
+		return (NULL);
+	return ((*value)->value);
 }
 
 /* Convert an argument value to a number. */
@@ -232,13 +326,15 @@ args_strtonum(struct args *args, u_char ch, long long minval, long long maxval,
 	const char		*errstr;
 	long long 	 	 ll;
 	struct args_entry	*entry;
+	struct args_value	*value;
 
 	if ((entry = args_find(args, ch)) == NULL) {
 		*cause = xstrdup("missing");
 		return (0);
 	}
+	value = TAILQ_LAST(&entry->values, args_values);
 
-	ll = strtonum(entry->value, minval, maxval, &errstr);
+	ll = strtonum(value->value, minval, maxval, &errstr);
 	if (errstr != NULL) {
 		*cause = xstrdup(errstr);
 		return (0);

attributes.c

@@ -31,7 +31,7 @@ attributes_tostring(int attr)
 	if (attr == 0)
 		return ("none");
 
-	len = xsnprintf(buf, sizeof buf, "%s%s%s%s%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%s",
 	    (attr & GRID_ATTR_BRIGHT) ? "bright," : "",
 	    (attr & GRID_ATTR_DIM) ? "dim," : "",
 	    (attr & GRID_ATTR_UNDERSCORE) ? "underscore," : "",
@@ -43,7 +43,8 @@ attributes_tostring(int attr)
 	    (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," : "");
+	    (attr & GRID_ATTR_UNDERSCORE_5) ? "dashed-underscore," : "",
+	    (attr & GRID_ATTR_OVERLINE) ? "overline," : "");
 	if (len > 0)
 		buf[len - 1] = '\0';
 
@@ -58,8 +59,8 @@ attributes_fromstring(const char *str)
 	size_t		end;
 	u_int		i;
 	struct {
-		const char*	name;
-		int		attr;
+		const char	*name;
+		int		 attr;
 	} table[] = {
 		{ "bright", GRID_ATTR_BRIGHT },
 		{ "bold", GRID_ATTR_BRIGHT },
@@ -73,7 +74,8 @@ attributes_fromstring(const char *str)
 		{ "double-underscore", GRID_ATTR_UNDERSCORE_2 },
 		{ "curly-underscore", GRID_ATTR_UNDERSCORE_3 },
 		{ "dotted-underscore", GRID_ATTR_UNDERSCORE_4 },
-		{ "dashed-underscore", GRID_ATTR_UNDERSCORE_5 }
+		{ "dashed-underscore", GRID_ATTR_UNDERSCORE_5 },
+		{ "overline", GRID_ATTR_OVERLINE }
 	};
 
 	if (*str == '\0' || strcspn(str, delimiters) == 0)

cfg.c

@@ -26,17 +26,6 @@
 
 #include "tmux.h"
 
-/* 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;
@@ -63,7 +52,7 @@ cfg_done(__unused struct cmdq_item *item, __unused void *data)
 		cfg_show_causes(RB_MIN(sessions, &sessions));
 
 	if (cfg_item != NULL)
-		cfg_item->flags &= ~CMDQ_WAITING;
+		cmdq_continue(cfg_item);
 
 	status_prompt_load_history();
 
@@ -77,17 +66,49 @@ set_cfg_file(const char *path)
 	cfg_file = xstrdup(path);
 }
 
+static char *
+expand_cfg_file(const char *path, const char *home)
+{
+	char			*expanded, *name;
+	const char		*end;
+	struct environ_entry	*value;
+
+	if (strncmp(path, "~/", 2) == 0) {
+		if (home == NULL)
+			return (NULL);
+		xasprintf(&expanded, "%s%s", home, path + 1);
+		return (expanded);
+	}
+
+	if (*path == '$') {
+		end = strchr(path, '/');
+		if (end == NULL)
+			name = xstrdup(path + 1);
+		else
+			name = xstrndup(path + 1, end - path - 1);
+		value = environ_find(global_environ, name);
+		free(name);
+		if (value == NULL)
+			return (NULL);
+		if (end == NULL)
+			end = "";
+		xasprintf(&expanded, "%s%s", value->value, end);
+		return (expanded);
+	}
+
+	return (xstrdup(path));
+}
+
 void
 start_cfg(void)
 {
-	const char	*home;
-	int		 quiet = 0;
+	const char	*home = find_home();
 	struct client	*c;
+	char		*path, *copy, *next, *expanded;
 
 	/*
-	 * 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.
+	 * Configuration files are loaded without a client, so commands are 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.
@@ -101,210 +122,122 @@ start_cfg(void)
 		cmdq_append(c, cfg_item);
 	}
 
-	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, NULL, NULL, quiet);
+	if (cfg_file == NULL) {
+		path = copy = xstrdup(TMUX_CONF);
+		while ((next = strsep(&path, ":")) != NULL) {
+			expanded = expand_cfg_file(next, home);
+			if (expanded == NULL) {
+				log_debug("couldn't expand %s", next);
+				continue;
+			}
+			log_debug("expanded %s to %s", next, expanded);
+			load_cfg(expanded, c, NULL, CMD_PARSE_QUIET, NULL);
+			free(expanded);
+		}
+		free(copy);
+	} else
+		load_cfg(cfg_file, c, NULL, 0, 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
-load_cfg(const char *path, struct client *c, struct cmdq_item *item, int quiet)
+load_cfg(const char *path, struct client *c, struct cmdq_item *item, int flags,
+    struct cmdq_item **new_item)
 {
 	FILE			*f;
-	const char		 delim[3] = { '\\', '\\', '\0' };
-	u_int			 found = 0;
-	size_t			 line = 0;
-	char			*buf, *cause1, *p, *q;
-	struct cmd_list		*cmdlist;
-	struct cmdq_item	*new_item;
-	struct cfg_cond		*cond, *cond1;
-	struct cfg_conds	 conds;
+	struct cmd_parse_input	 pi;
+	struct cmd_parse_result	*pr;
+	struct cmdq_item	*new_item0;
 
-	TAILQ_INIT(&conds);
+	if (new_item != NULL)
+		*new_item = NULL;
 
 	log_debug("loading %s", path);
 	if ((f = fopen(path, "rb")) == NULL) {
-		if (errno == ENOENT && quiet)
+		if (errno == ENOENT && (flags & CMD_PARSE_QUIET))
 			return (0);
 		cfg_add_cause("%s: %s", path, strerror(errno));
 		return (-1);
 	}
 
-	while ((buf = fparseln(f, NULL, &line, delim, 0)) != NULL) {
-		log_debug("%s: %s", path, buf);
+	memset(&pi, 0, sizeof pi);
+	pi.flags = flags;
+	pi.file = path;
+	pi.line = 1;
+	pi.item = item;
+	pi.c = c;
 
-		p = buf;
-		while (isspace((u_char)*p))
-			p++;
-		if (*p == '\0') {
-			free(buf);
-			continue;
-		}
-		q = p + strlen(p) - 1;
-		while (q != p && isspace((u_char)*q))
-			*q-- = '\0';
-
-		if (*p == '%') {
-			cfg_handle_directive(p, path, line, &conds);
-			continue;
-		}
-		cond = TAILQ_FIRST(&conds);
-		if (cond != NULL && !cond->met)
-			continue;
-
-		cmdlist = cmd_string_parse(p, path, line, &cause1);
-		if (cmdlist == NULL) {
-			free(buf);
-			if (cause1 == NULL)
-				continue;
-			cfg_add_cause("%s:%zu: %s", path, line, cause1);
-			free(cause1);
-			continue;
-		}
-		free(buf);
-
-		new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
-		if (item != NULL)
-			cmdq_insert_after(item, new_item);
-		else
-			cmdq_append(c, new_item);
-		cmd_list_free(cmdlist);
-
-		found++;
-	}
+	pr = cmd_parse_from_file(f, &pi);
 	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);
+	if (pr->status == CMD_PARSE_EMPTY)
+		return (0);
+	if (pr->status == CMD_PARSE_ERROR) {
+		cfg_add_cause("%s", pr->error);
+		free(pr->error);
+		return (-1);
+	}
+	if (flags & CMD_PARSE_PARSEONLY) {
+		cmd_list_free(pr->cmdlist);
+		return (0);
 	}
 
-	return (found);
+	new_item0 = cmdq_get_command(pr->cmdlist, NULL, NULL, 0);
+	if (item != NULL)
+		new_item0 = cmdq_insert_after(item, new_item0);
+	else
+		new_item0 = cmdq_append(NULL, new_item0);
+	cmd_list_free(pr->cmdlist);
+
+	if (new_item != NULL)
+		*new_item = new_item0;
+	return (0);
+}
+
+int
+load_cfg_from_buffer(const void *buf, size_t len, const char *path,
+    struct client *c, struct cmdq_item *item, int flags,
+    struct cmdq_item **new_item)
+{
+	struct cmd_parse_input	 pi;
+	struct cmd_parse_result	*pr;
+	struct cmdq_item	*new_item0;
+
+	if (new_item != NULL)
+		*new_item = NULL;
+
+	log_debug("loading %s", path);
+
+	memset(&pi, 0, sizeof pi);
+	pi.flags = flags;
+	pi.file = path;
+	pi.line = 1;
+	pi.item = item;
+	pi.c = c;
+
+	pr = cmd_parse_from_buffer(buf, len, &pi);
+	if (pr->status == CMD_PARSE_EMPTY)
+		return (0);
+	if (pr->status == CMD_PARSE_ERROR) {
+		cfg_add_cause("%s", pr->error);
+		free(pr->error);
+		return (-1);
+	}
+	if (flags & CMD_PARSE_PARSEONLY) {
+		cmd_list_free(pr->cmdlist);
+		return (0);
+	}
+
+	new_item0 = cmdq_get_command(pr->cmdlist, NULL, NULL, 0);
+	if (item != NULL)
+		new_item0 = cmdq_insert_after(item, new_item0);
+	else
+		new_item0 = cmdq_append(NULL, new_item0);
+	cmd_list_free(pr->cmdlist);
+
+	if (new_item != NULL)
+		*new_item = new_item0;
+	return (0);
 }
 
 void

client.c

@@ -35,7 +35,6 @@
 static struct tmuxproc	*client_proc;
 static struct tmuxpeer	*client_peer;
 static int		 client_flags;
-static struct event	 client_stdin;
 static enum {
 	CLIENT_EXIT_NONE,
 	CLIENT_EXIT_DETACHED,
@@ -46,19 +45,19 @@ static enum {
 	CLIENT_EXIT_EXITED,
 	CLIENT_EXIT_SERVER_EXITED,
 } client_exitreason = CLIENT_EXIT_NONE;
+static int		 client_exitflag;
 static int		 client_exitval;
 static enum msgtype	 client_exittype;
 static const char	*client_exitsession;
 static const char	*client_execshell;
 static const char	*client_execcmd;
 static int		 client_attached;
+static struct client_files client_files = RB_INITIALIZER(&client_files);
 
 static __dead void	 client_exec(const char *,const char *);
 static int		 client_get_lock(char *);
 static int		 client_connect(struct event_base *, const char *, int);
 static void		 client_send_identify(const char *, const char *);
-static void		 client_stdin_callback(int, short, void *);
-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 *);
@@ -202,7 +201,7 @@ client_exit_message(void)
 	case CLIENT_EXIT_TERMINATED:
 		return ("terminated");
 	case CLIENT_EXIT_LOST_SERVER:
-		return ("lost server");
+		return ("server exited unexpectedly");
 	case CLIENT_EXIT_EXITED:
 		return ("exited");
 	case CLIENT_EXIT_SERVER_EXITED:
@@ -211,18 +210,38 @@ client_exit_message(void)
 	return ("unknown reason");
 }
 
+/* Exit if all streams flushed. */
+static void
+client_exit(void)
+{
+	struct client_file	*cf;
+	size_t 			 left;
+	int			 waiting = 0;
+
+	RB_FOREACH (cf, client_files, &client_files) {
+		if (cf->event == NULL)
+			continue;
+		left = EVBUFFER_LENGTH(cf->event->output);
+		if (left != 0) {
+			waiting++;
+			log_debug("file %u %zu bytes left", cf->stream, left);
+		}
+	}
+	if (waiting == 0)
+		proc_exit(client_proc);
+}
+
 /* Client main loop. */
 int
 client_main(struct event_base *base, int argc, char **argv, int flags)
 {
+	struct cmd_parse_result	*pr;
 	struct cmd		*cmd;
-	struct cmd_list		*cmdlist;
-	struct msg_command_data	*data;
+	struct msg_command	*data;
 	int			 cmdflags, fd, i;
 	const char		*ttynam, *cwd;
 	pid_t			 ppid;
 	enum msgtype		 msg;
-	char			*cause;
 	struct termios		 tio, saved_tio;
 	size_t			 size;
 
@@ -248,14 +267,15 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
 		 * later in server) but it is necessary to get the start server
 		 * flag.
 		 */
-		cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause);
-		if (cmdlist != NULL) {
-			TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
+		pr = cmd_parse_from_arguments(argc, argv, NULL);
+		if (pr->status == CMD_PARSE_SUCCESS) {
+			TAILQ_FOREACH(cmd, &pr->cmdlist->list, qentry) {
 				if (cmd->entry->flags & CMD_STARTSERVER)
 					cmdflags |= CMD_STARTSERVER;
 			}
-			cmd_list_free(cmdlist);
-		}
+			cmd_list_free(pr->cmdlist);
+		} else
+			free(pr->error);
 	}
 
 	/* Create client process structure (starts logging). */
@@ -291,7 +311,9 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
 	 *
 	 * "sendfd" is dropped later in client_dispatch_wait().
 	 */
-	if (pledge("stdio unix sendfd proc exec tty", NULL) != 0)
+	if (pledge(
+	    "stdio rpath wpath cpath unix sendfd proc exec tty",
+	    NULL) != 0)
 		fatal("pledge failed");
 
 	/* Free stuff that is not used in the client. */
@@ -302,10 +324,7 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
 	options_free(global_w_options);
 	environ_free(global_environ);
 
-	/* Create stdin handler. */
-	setblocking(STDIN_FILENO, 0);
-	event_set(&client_stdin, STDIN_FILENO, EV_READ|EV_PERSIST,
-	    client_stdin_callback, NULL);
+	/* Set up control mode. */
 	if (client_flags & CLIENT_CONTROLCONTROL) {
 		if (tcgetattr(STDIN_FILENO, &saved_tio) != 0) {
 			fprintf(stderr, "tcgetattr failed: %s\n",
@@ -428,39 +447,255 @@ client_send_identify(const char *ttynam, const char *cwd)
 	proc_send(client_peer, MSG_IDENTIFY_DONE, -1, NULL, 0);
 }
 
-/* Callback for client stdin read events. */
+/* File write error callback. */
 static void
-client_stdin_callback(__unused int fd, __unused short events,
-    __unused void *arg)
+client_write_error_callback(__unused struct bufferevent *bev,
+    __unused short what, void *arg)
 {
-	struct msg_stdin_data	data;
+	struct client_file	*cf = arg;
 
-	data.size = read(STDIN_FILENO, data.data, sizeof data.data);
-	if (data.size < 0 && (errno == EINTR || errno == EAGAIN))
-		return;
+	log_debug("write error file %d", cf->stream);
 
-	proc_send(client_peer, MSG_STDIN, -1, &data, sizeof data);
-	if (data.size <= 0)
-		event_del(&client_stdin);
+	bufferevent_free(cf->event);
+	cf->event = NULL;
+
+	close(cf->fd);
+	cf->fd = -1;
+
+	if (client_exitflag)
+		client_exit();
 }
 
-/* Force write to file descriptor. */
+/* File write callback. */
 static void
-client_write(int fd, const char *data, size_t size)
+client_write_callback(__unused struct bufferevent *bev, void *arg)
 {
-	ssize_t	used;
+	struct client_file	*cf = arg;
 
-	log_debug("%s: %.*s", __func__, (int)size, data);
-	while (size != 0) {
-		used = write(fd, data, size);
-		if (used == -1) {
-			if (errno == EINTR || errno == EAGAIN)
-				continue;
-			break;
-		}
-		data += used;
-		size -= used;
+	if (cf->closed && EVBUFFER_LENGTH(cf->event->output) == 0) {
+		bufferevent_free(cf->event);
+		close(cf->fd);
+		RB_REMOVE(client_files, &client_files, cf);
+		file_free(cf);
 	}
+
+	if (client_exitflag)
+		client_exit();
+}
+
+/* Open write file. */
+static void
+client_write_open(void *data, size_t datalen)
+{
+	struct msg_write_open	*msg = data;
+	const char		*path;
+	struct msg_write_ready	 reply;
+	struct client_file	 find, *cf;
+	const int		 flags = O_NONBLOCK|O_WRONLY|O_CREAT;
+	int			 error = 0;
+
+	if (datalen < sizeof *msg)
+		fatalx("bad MSG_WRITE_OPEN size");
+	if (datalen == sizeof *msg)
+		path = "-";
+	else
+		path = (const char *)(msg + 1);
+	log_debug("open write file %d %s", msg->stream, path);
+
+	find.stream = msg->stream;
+	if ((cf = RB_FIND(client_files, &client_files, &find)) == NULL) {
+		cf = file_create(NULL, msg->stream, NULL, NULL);
+		RB_INSERT(client_files, &client_files, cf);
+	} else {
+		error = EBADF;
+		goto reply;
+	}
+	if (cf->closed) {
+		error = EBADF;
+		goto reply;
+	}
+
+	cf->fd = -1;
+	if (msg->fd == -1)
+		cf->fd = open(path, msg->flags|flags, 0644);
+	else {
+		if (msg->fd != STDOUT_FILENO && msg->fd != STDERR_FILENO)
+			errno = EBADF;
+		else {
+			cf->fd = dup(msg->fd);
+			if (~client_flags & CLIENT_CONTROL)
+				close(msg->fd); /* can only be used once */
+		}
+	}
+	if (cf->fd == -1) {
+		error = errno;
+		goto reply;
+	}
+
+	cf->event = bufferevent_new(cf->fd, NULL, client_write_callback,
+	    client_write_error_callback, cf);
+	bufferevent_enable(cf->event, EV_WRITE);
+	goto reply;
+
+reply:
+	reply.stream = msg->stream;
+	reply.error = error;
+	proc_send(client_peer, MSG_WRITE_READY, -1, &reply, sizeof reply);
+}
+
+/* Write to client file. */
+static void
+client_write_data(void *data, size_t datalen)
+{
+	struct msg_write_data	*msg = data;
+	struct client_file	 find, *cf;
+	size_t			 size = datalen - sizeof *msg;
+
+	if (datalen < sizeof *msg)
+		fatalx("bad MSG_WRITE size");
+	find.stream = msg->stream;
+	if ((cf = RB_FIND(client_files, &client_files, &find)) == NULL)
+		fatalx("unknown stream number");
+	log_debug("write %zu to file %d", size, cf->stream);
+
+	if (cf->event != NULL)
+		bufferevent_write(cf->event, msg + 1, size);
+}
+
+/* Close client file. */
+static void
+client_write_close(void *data, size_t datalen)
+{
+	struct msg_write_close	*msg = data;
+	struct client_file	 find, *cf;
+
+	if (datalen != sizeof *msg)
+		fatalx("bad MSG_WRITE_CLOSE size");
+	find.stream = msg->stream;
+	if ((cf = RB_FIND(client_files, &client_files, &find)) == NULL)
+		fatalx("unknown stream number");
+	log_debug("close file %d", cf->stream);
+
+	if (cf->event == NULL || EVBUFFER_LENGTH(cf->event->output) == 0) {
+		if (cf->event != NULL)
+			bufferevent_free(cf->event);
+		if (cf->fd != -1)
+			close(cf->fd);
+		RB_REMOVE(client_files, &client_files, cf);
+		file_free(cf);
+	}
+}
+
+/* File read callback. */
+static void
+client_read_callback(__unused struct bufferevent *bev, void *arg)
+{
+	struct client_file	*cf = arg;
+	void			*bdata;
+	size_t			 bsize;
+	struct msg_read_data	*msg;
+	size_t			 msglen;
+
+	msg = xmalloc(sizeof *msg);
+	for (;;) {
+		bdata = EVBUFFER_DATA(cf->event->input);
+		bsize = EVBUFFER_LENGTH(cf->event->input);
+
+		if (bsize == 0)
+			break;
+		if (bsize > MAX_IMSGSIZE - IMSG_HEADER_SIZE - sizeof *msg)
+			bsize = MAX_IMSGSIZE - IMSG_HEADER_SIZE - sizeof *msg;
+		log_debug("read %zu from file %d", bsize, cf->stream);
+
+		msglen = (sizeof *msg) + bsize;
+		msg = xrealloc(msg, msglen);
+		msg->stream = cf->stream;
+		memcpy(msg + 1, bdata, bsize);
+		proc_send(client_peer, MSG_READ, -1, msg, msglen);
+
+		evbuffer_drain(cf->event->input, bsize);
+	}
+	free(msg);
+}
+
+/* File read error callback. */
+static void
+client_read_error_callback(__unused struct bufferevent *bev,
+    __unused short what, void *arg)
+{
+	struct client_file	*cf = arg;
+	struct msg_read_done	 msg;
+
+	log_debug("read error file %d", cf->stream);
+
+	msg.stream = cf->stream;
+	msg.error = 0;
+	proc_send(client_peer, MSG_READ_DONE, -1, &msg, sizeof msg);
+
+	bufferevent_free(cf->event);
+	close(cf->fd);
+	RB_REMOVE(client_files, &client_files, cf);
+	file_free(cf);
+}
+
+/* Open read file. */
+static void
+client_read_open(void *data, size_t datalen)
+{
+	struct msg_read_open	*msg = data;
+	const char		*path;
+	struct msg_read_done	 reply;
+	struct client_file	 find, *cf;
+	const int		 flags = O_NONBLOCK|O_RDONLY;
+	int			 error = 0;
+
+	if (datalen < sizeof *msg)
+		fatalx("bad MSG_READ_OPEN size");
+	if (datalen == sizeof *msg)
+		path = "-";
+	else
+		path = (const char *)(msg + 1);
+	log_debug("open read file %d %s", msg->stream, path);
+
+	find.stream = msg->stream;
+	if ((cf = RB_FIND(client_files, &client_files, &find)) == NULL) {
+		cf = file_create(NULL, msg->stream, NULL, NULL);
+		RB_INSERT(client_files, &client_files, cf);
+	} else {
+		error = EBADF;
+		goto reply;
+	}
+	if (cf->closed) {
+		error = EBADF;
+		goto reply;
+	}
+
+	cf->fd = -1;
+	if (msg->fd == -1)
+		cf->fd = open(path, flags);
+	else {
+		if (msg->fd != STDIN_FILENO)
+			errno = EBADF;
+		else {
+			cf->fd = dup(msg->fd);
+			if (~client_flags & CLIENT_CONTROL)
+				close(msg->fd); /* can only be used once */
+		}
+	}
+	if (cf->fd == -1) {
+		error = errno;
+		goto reply;
+	}
+
+	cf->event = bufferevent_new(cf->fd, client_read_callback, NULL,
+	    client_read_error_callback, cf);
+	bufferevent_enable(cf->event, EV_READ);
+	return;
+
+reply:
+	reply.stream = msg->stream;
+	reply.error = error;
+	proc_send(client_peer, MSG_READ_DONE, -1, &reply, sizeof reply);
 }
 
 /* Run command in shell; used for -c. */
@@ -555,12 +790,10 @@ client_dispatch(struct imsg *imsg, __unused void *arg)
 static void
 client_dispatch_wait(struct imsg *imsg)
 {
-	char			*data;
-	ssize_t			 datalen;
-	struct msg_stdout_data	 stdoutdata;
-	struct msg_stderr_data	 stderrdata;
-	int			 retval;
-	static int		 pledge_applied;
+	char		*data;
+	ssize_t		 datalen;
+	int		 retval;
+	static int	 pledge_applied;
 
 	/*
 	 * "sendfd" is no longer required once all of the identify messages
@@ -569,10 +802,12 @@ client_dispatch_wait(struct imsg *imsg)
 	 * get the first message from the server.
 	 */
 	if (!pledge_applied) {
-		if (pledge("stdio unix proc exec tty", NULL) != 0)
+		if (pledge(
+		    "stdio rpath wpath cpath unix proc exec tty",
+		    NULL) != 0)
 			fatal("pledge failed");
 		pledge_applied = 1;
-	};
+	}
 
 	data = imsg->data;
 	datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
@@ -586,38 +821,16 @@ client_dispatch_wait(struct imsg *imsg)
 			memcpy(&retval, data, sizeof retval);
 			client_exitval = retval;
 		}
-		proc_exit(client_proc);
+		client_exitflag = 1;
+		client_exit();
 		break;
 	case MSG_READY:
 		if (datalen != 0)
 			fatalx("bad MSG_READY size");
 
-		event_del(&client_stdin);
 		client_attached = 1;
 		proc_send(client_peer, MSG_RESIZE, -1, NULL, 0);
 		break;
-	case MSG_STDIN:
-		if (datalen != 0)
-			fatalx("bad MSG_STDIN size");
-
-		event_add(&client_stdin, NULL);
-		break;
-	case MSG_STDOUT:
-		if (datalen != sizeof stdoutdata)
-			fatalx("bad MSG_STDOUT size");
-		memcpy(&stdoutdata, data, sizeof stdoutdata);
-
-		client_write(STDOUT_FILENO, stdoutdata.data,
-		    stdoutdata.size);
-		break;
-	case MSG_STDERR:
-		if (datalen != sizeof stderrdata)
-			fatalx("bad MSG_STDERR size");
-		memcpy(&stderrdata, data, sizeof stderrdata);
-
-		client_write(STDERR_FILENO, stderrdata.data,
-		    stderrdata.size);
-		break;
 	case MSG_VERSION:
 		if (datalen != 0)
 			fatalx("bad MSG_VERSION size");
@@ -641,6 +854,24 @@ client_dispatch_wait(struct imsg *imsg)
 	case MSG_EXITED:
 		proc_exit(client_proc);
 		break;
+	case MSG_READ_OPEN:
+		client_read_open(data, datalen);
+		break;
+	case MSG_WRITE_OPEN:
+		client_write_open(data, datalen);
+		break;
+	case MSG_WRITE:
+		client_write_data(data, datalen);
+		break;
+	case MSG_WRITE_CLOSE:
+		client_write_close(data, datalen);
+		break;
+	case MSG_OLDSTDERR:
+	case MSG_OLDSTDIN:
+	case MSG_OLDSTDOUT:
+		fprintf(stderr, "server version is too old for client\n");
+		proc_exit(client_proc);
+		break;
 	}
 }
 

cmd-attach-session.c

@@ -37,8 +37,8 @@ const struct cmd_entry cmd_attach_session_entry = {
 	.name = "attach-session",
 	.alias = "attach",
 
-	.args = { "c:dErt:", 0, 0 },
-	.usage = "[-dEr] [-c working-directory] " CMD_TARGET_SESSION_USAGE,
+	.args = { "c:dErt:x", 0, 0 },
+	.usage = "[-dErx] [-c working-directory] " CMD_TARGET_SESSION_USAGE,
 
 	/* -t is special */
 
@@ -48,7 +48,7 @@ const struct cmd_entry cmd_attach_session_entry = {
 
 enum cmd_retval
 cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
-    int rflag, const char *cflag, int Eflag)
+    int xflag, int rflag, const char *cflag, int Eflag)
 {
 	struct cmd_find_state	*current = &item->shared->current;
 	enum cmd_find_type	 type;
@@ -58,6 +58,7 @@ cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
 	struct winlink		*wl;
 	struct window_pane	*wp;
 	char			*cause;
+	enum msgtype		 msgtype;
 
 	if (RB_EMPTY(&sessions)) {
 		cmdq_error(item, "no sessions");
@@ -87,7 +88,7 @@ cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
 
 	if (wl != NULL) {
 		if (wp != NULL)
-			window_set_active_pane(wp->window, wp);
+			window_set_active_pane(wp->window, wp, 1);
 		session_set_current(s, wl);
 		if (wp != NULL)
 			cmd_find_from_winlink_pane(current, wl, wp, 0);
@@ -102,11 +103,15 @@ cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
 
 	c->last_session = c->session;
 	if (c->session != NULL) {
-		if (dflag) {
+		if (dflag || xflag) {
+			if (xflag)
+				msgtype = MSG_DETACHKILL;
+			else
+				msgtype = MSG_DETACH;
 			TAILQ_FOREACH(c_loop, &clients, entry) {
 				if (c_loop->session != s || c == c_loop)
 					continue;
-				server_client_detach(c_loop, MSG_DETACH);
+				server_client_detach(c_loop, msgtype);
 			}
 		}
 		if (!Eflag)
@@ -122,6 +127,7 @@ cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
 		gettimeofday(&s->last_attached_time, NULL);
 		server_redraw_client(c);
 		s->curw->flags &= ~WINLINK_ALERTFLAGS;
+		s->curw->window->latest = c;
 	} else {
 		if (server_client_open(c, &cause) != 0) {
 			cmdq_error(item, "open terminal failed: %s", cause);
@@ -131,11 +137,15 @@ cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
 		if (rflag)
 			c->flags |= CLIENT_READONLY;
 
-		if (dflag) {
+		if (dflag || xflag) {
+			if (xflag)
+				msgtype = MSG_DETACHKILL;
+			else
+				msgtype = MSG_DETACH;
 			TAILQ_FOREACH(c_loop, &clients, entry) {
 				if (c_loop->session != s || c == c_loop)
 					continue;
-				server_client_detach(c_loop, MSG_DETACH);
+				server_client_detach(c_loop, msgtype);
 			}
 		}
 		if (!Eflag)
@@ -150,6 +160,7 @@ cmd_attach_session(struct cmdq_item *item, const char *tflag, int dflag,
 		gettimeofday(&s->last_attached_time, NULL);
 		server_redraw_client(c);
 		s->curw->flags &= ~WINLINK_ALERTFLAGS;
+		s->curw->window->latest = c;
 
 		if (~c->flags & CLIENT_CONTROL)
 			proc_send(c->peer, MSG_READY, -1, NULL, 0);
@@ -169,6 +180,6 @@ cmd_attach_session_exec(struct cmd *self, struct cmdq_item *item)
 	struct args	*args = self->args;
 
 	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')));
+	    args_has(args, 'd'), args_has(args, 'x'), args_has(args, 'r'),
+	    args_get(args, 'c'), args_has(args, 'E')));
 }

cmd-bind-key.c

@@ -33,8 +33,8 @@ const struct cmd_entry cmd_bind_key_entry = {
 	.name = "bind-key",
 	.alias = "bind",
 
-	.args = { "cnrT:", 2, -1 },
-	.usage = "[-cnr] [-T key-table] key "
+	.args = { "nrN:T:", 2, -1 },
+	.usage = "[-nr] [-T key-table] [-N note] key "
 	         "command [arguments]",
 
 	.flags = CMD_AFTERHOOK,
@@ -44,15 +44,16 @@ const struct cmd_entry cmd_bind_key_entry = {
 static enum cmd_retval
 cmd_bind_key_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct args	*args = self->args;
-	char		*cause;
-	struct cmd_list	*cmdlist;
-	key_code	 key;
-	const char	*tablename;
+	struct args		 *args = self->args;
+	key_code		  key;
+	const char		 *tablename, *note;
+	struct cmd_parse_result	 *pr;
+	char			**argv = args->argv;
+	int			  argc = args->argc, repeat;
 
-	key = key_string_lookup_string(args->argv[0]);
+	key = key_string_lookup_string(argv[0]);
 	if (key == KEYC_NONE || key == KEYC_UNKNOWN) {
-		cmdq_error(item, "unknown key: %s", args->argv[0]);
+		cmdq_error(item, "unknown key: %s", argv[0]);
 		return (CMD_RETURN_ERROR);
 	}
 
@@ -62,15 +63,24 @@ cmd_bind_key_exec(struct cmd *self, struct cmdq_item *item)
 		tablename = "root";
 	else
 		tablename = "prefix";
+	repeat = args_has(args, 'r');
 
-	cmdlist = cmd_list_parse(args->argc - 1, args->argv + 1, NULL, 0,
-	    &cause);
-	if (cmdlist == NULL) {
-		cmdq_error(item, "%s", cause);
-		free(cause);
+	if (argc == 2)
+		pr = cmd_parse_from_string(argv[1], NULL);
+	else
+		pr = cmd_parse_from_arguments(argc - 1, argv + 1, NULL);
+	switch (pr->status) {
+	case CMD_PARSE_EMPTY:
+		cmdq_error(item, "empty command");
 		return (CMD_RETURN_ERROR);
+	case CMD_PARSE_ERROR:
+		cmdq_error(item, "%s", pr->error);
+		free(pr->error);
+		return (CMD_RETURN_ERROR);
+	case CMD_PARSE_SUCCESS:
+		break;
 	}
-
-	key_bindings_add(tablename, key, args_has(args, 'r'), cmdlist);
+	note = args_get(args, 'N');
+	key_bindings_add(tablename, key, note, repeat, pr->cmdlist);
 	return (CMD_RETURN_NORMAL);
 }

cmd-break-pane.c

@@ -76,9 +76,12 @@ 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(w->sx, w->sy);
+	w = wp->window = window_create(w->sx, w->sy, w->xpixel, w->ypixel);
+	options_set_parent(wp->options, w->options);
+	wp->flags |= PANE_STYLECHANGED;
 	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
 	w->active = wp;
+	w->latest = c;
 
 	if (!args_has(args, 'n')) {
 		name = default_window_name(w);

cmd-capture-pane.c

@@ -39,8 +39,8 @@ const struct cmd_entry cmd_capture_pane_entry = {
 	.name = "capture-pane",
 	.alias = "capturep",
 
-	.args = { "ab:CeE:JpPqS:t:", 0, 0 },
-	.usage = "[-aCeJpPq] " CMD_BUFFER_USAGE " [-E end-line] "
+	.args = { "ab:CeE:JNpPqS:t:", 0, 0 },
+	.usage = "[-aCeJNpPq] " CMD_BUFFER_USAGE " [-E end-line] "
 		 "[-S start-line] " CMD_TARGET_PANE_USAGE,
 
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -110,7 +110,7 @@ cmd_capture_pane_history(struct args *args, struct cmdq_item *item,
 	struct grid		*gd;
 	const struct grid_line	*gl;
 	struct grid_cell	*gc = NULL;
-	int			 n, with_codes, escape_c0, join_lines;
+	int			 n, with_codes, escape_c0, join_lines, no_trim;
 	u_int			 i, sx, top, bottom, tmp;
 	char			*cause, *buf, *line;
 	const char		*Sflag, *Eflag;
@@ -170,11 +170,12 @@ cmd_capture_pane_history(struct args *args, struct cmdq_item *item,
 	with_codes = args_has(args, 'e');
 	escape_c0 = args_has(args, 'C');
 	join_lines = args_has(args, 'J');
+	no_trim = args_has(args, 'N');
 
 	buf = NULL;
 	for (i = top; i <= bottom; i++) {
 		line = grid_string_cells(gd, 0, i, sx, &gc, with_codes,
-		    escape_c0, !join_lines);
+		    escape_c0, !join_lines && !no_trim);
 		linelen = strlen(line);
 
 		buf = cmd_capture_pane_append(buf, len, line, linelen);
@@ -192,7 +193,7 @@ static enum cmd_retval
 cmd_capture_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
-	struct client		*c;
+	struct client		*c = item->client;
 	struct window_pane	*wp = item->target.wp;
 	char			*buf, *cause;
 	const char		*bufname;
@@ -213,18 +214,15 @@ cmd_capture_pane_exec(struct cmd *self, struct cmdq_item *item)
 		return (CMD_RETURN_ERROR);
 
 	if (args_has(args, 'p')) {
-		c = item->client;
-		if (c == NULL ||
-		    (c->session != NULL && !(c->flags & CLIENT_CONTROL))) {
-			cmdq_error(item, "can't write to stdout");
+		if (!file_can_print(c)) {
+			cmdq_error(item, "can't write output to client");
 			free(buf);
 			return (CMD_RETURN_ERROR);
 		}
-		evbuffer_add(c->stdout_data, buf, len);
-		free(buf);
+		file_print_buffer(c, buf, len);
 		if (args_has(args, 'P') && len > 0)
-		    evbuffer_add(c->stdout_data, "\n", 1);
-		server_client_push_stdout(c);
+			file_print(c, "\n");
+		free(buf);
 	} else {
 		bufname = NULL;
 		if (args_has(args, 'b'))

cmd-choose-tree.c

@@ -30,8 +30,8 @@ const struct cmd_entry cmd_choose_tree_entry = {
 	.name = "choose-tree",
 	.alias = NULL,
 
-	.args = { "F:Gf:NO:st:wZ", 0, 1 },
-	.usage = "[-GNsw] [-F format] [-f filter] [-O sort-order] "
+	.args = { "F:Gf:NO:rst:wZ", 0, 1 },
+	.usage = "[-GNrswZ] [-F format] [-f filter] [-O sort-order] "
 	         CMD_TARGET_PANE_USAGE " [template]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -44,8 +44,8 @@ const struct cmd_entry cmd_choose_client_entry = {
 	.name = "choose-client",
 	.alias = NULL,
 
-	.args = { "F:f:NO:t:Z", 0, 1 },
-	.usage = "[-N] [-F format] [-f filter] [-O sort-order] "
+	.args = { "F:f:NO:rt:Z", 0, 1 },
+	.usage = "[-NrZ] [-F format] [-f filter] [-O sort-order] "
 	         CMD_TARGET_PANE_USAGE " [template]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -58,8 +58,8 @@ const struct cmd_entry cmd_choose_buffer_entry = {
 	.name = "choose-buffer",
 	.alias = NULL,
 
-	.args = { "F:f:NO:t:Z", 0, 1 },
-	.usage = "[-N] [-F format] [-f filter] [-O sort-order] "
+	.args = { "F:f:NO:rt:Z", 0, 1 },
+	.usage = "[-NrZ] [-F format] [-f filter] [-O sort-order] "
 	         CMD_TARGET_PANE_USAGE " [template]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },

cmd-command-prompt.c

@@ -40,8 +40,8 @@ const struct cmd_entry cmd_command_prompt_entry = {
 	.name = "command-prompt",
 	.alias = NULL,
 
-	.args = { "1iI:Np:t:", 0, 1 },
-	.usage = "[-1Ni] [-I inputs] [-p prompts] " CMD_TARGET_CLIENT_USAGE " "
+	.args = { "1kiI:Np:t:", 0, 1 },
+	.usage = "[-1kiN] [-I inputs] [-p prompts] " CMD_TARGET_CLIENT_USAGE " "
 		 "[template]",
 
 	.flags = 0,
@@ -122,6 +122,8 @@ cmd_command_prompt_exec(struct cmd *self, struct cmdq_item *item)
 		cdata->flags |= PROMPT_NUMERIC;
 	else if (args_has(args, 'i'))
 		cdata->flags |= PROMPT_INCREMENTAL;
+	else if (args_has(args, 'k'))
+		cdata->flags |= PROMPT_KEY;
 	status_prompt_set(c, prompt, input, cmd_command_prompt_callback,
 	    cmd_command_prompt_free, cdata, cdata->flags);
 	free(prompt);
@@ -129,26 +131,15 @@ cmd_command_prompt_exec(struct cmd *self, struct cmdq_item *item)
 	return (CMD_RETURN_NORMAL);
 }
 
-static enum cmd_retval
-cmd_command_prompt_error(struct cmdq_item *item, void *data)
-{
-	char	*error = data;
-
-	cmdq_error(item, "%s", error);
-	free(error);
-
-	return (CMD_RETURN_NORMAL);
-}
-
 static int
 cmd_command_prompt_callback(struct client *c, void *data, const char *s,
     int done)
 {
 	struct cmd_command_prompt_cdata	*cdata = data;
-	struct cmd_list			*cmdlist;
 	struct cmdq_item		*new_item;
-	char				*cause, *new_template, *prompt, *ptr;
+	char				*new_template, *prompt, *ptr;
 	char				*input = NULL;
+	struct cmd_parse_result		*pr;
 
 	if (s == NULL)
 		return (0);
@@ -175,20 +166,22 @@ cmd_command_prompt_callback(struct client *c, void *data, const char *s,
 		return (1);
 	}
 
-	cmdlist = cmd_string_parse(new_template, NULL, 0, &cause);
-	if (cmdlist == NULL) {
-		if (cause != NULL) {
-			new_item = cmdq_get_callback(cmd_command_prompt_error,
-			    cause);
-		} else
-			new_item = NULL;
-	} else {
-		new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
-		cmd_list_free(cmdlist);
-	}
-
-	if (new_item != NULL)
+	pr = cmd_parse_from_string(new_template, NULL);
+	switch (pr->status) {
+	case CMD_PARSE_EMPTY:
+		new_item = NULL;
+		break;
+	case CMD_PARSE_ERROR:
+		new_item = cmdq_get_error(pr->error);
+		free(pr->error);
 		cmdq_append(c, new_item);
+		break;
+	case CMD_PARSE_SUCCESS:
+		new_item = cmdq_get_command(pr->cmdlist, NULL, NULL, 0);
+		cmd_list_free(pr->cmdlist);
+		cmdq_append(c, new_item);
+		break;
+	}
 
 	if (!done)
 		free(new_template);

cmd-confirm-before.c

@@ -82,48 +82,38 @@ cmd_confirm_before_exec(struct cmd *self, struct cmdq_item *item)
 	return (CMD_RETURN_NORMAL);
 }
 
-static enum cmd_retval
-cmd_confirm_before_error(struct cmdq_item *item, void *data)
-{
-	char	*error = data;
-
-	cmdq_error(item, "%s", error);
-	free(error);
-
-	return (CMD_RETURN_NORMAL);
-}
-
 static int
 cmd_confirm_before_callback(struct client *c, void *data, const char *s,
     __unused int done)
 {
 	struct cmd_confirm_before_data	*cdata = data;
-	struct cmd_list			*cmdlist;
 	struct cmdq_item		*new_item;
-	char				*cause;
+	struct cmd_parse_result		*pr;
 
 	if (c->flags & CLIENT_DEAD)
 		return (0);
 
 	if (s == NULL || *s == '\0')
 		return (0);
-	if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
+	if (tolower((u_char)s[0]) != 'y' || s[1] != '\0')
 		return (0);
 
-	cmdlist = cmd_string_parse(cdata->cmd, NULL, 0, &cause);
-	if (cmdlist == NULL) {
-		if (cause != NULL) {
-			new_item = cmdq_get_callback(cmd_confirm_before_error,
-			    cause);
-		} else
-			new_item = NULL;
-	} else {
-		new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
-		cmd_list_free(cmdlist);
-	}
-
-	if (new_item != NULL)
+	pr = cmd_parse_from_string(cdata->cmd, NULL);
+	switch (pr->status) {
+	case CMD_PARSE_EMPTY:
+		new_item = NULL;
+		break;
+	case CMD_PARSE_ERROR:
+		new_item = cmdq_get_error(pr->error);
+		free(pr->error);
 		cmdq_append(c, new_item);
+		break;
+	case CMD_PARSE_SUCCESS:
+		new_item = cmdq_get_command(pr->cmdlist, NULL, NULL, 0);
+		cmd_list_free(pr->cmdlist);
+		cmdq_append(c, new_item);
+		break;
+	}
 
 	return (0);
 }

cmd-copy-mode.c

@@ -30,8 +30,8 @@ const struct cmd_entry cmd_copy_mode_entry = {
 	.name = "copy-mode",
 	.alias = NULL,
 
-	.args = { "Met:u", 0, 0 },
-	.usage = "[-Mu] " CMD_TARGET_PANE_USAGE,
+	.args = { "eHMt:uq", 0, 0 },
+	.usage = "[-eHMuq] " CMD_TARGET_PANE_USAGE,
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -61,6 +61,11 @@ cmd_copy_mode_exec(struct cmd *self, struct cmdq_item *item)
 	struct session		*s;
 	struct window_pane	*wp = item->target.wp;
 
+	if (args_has(args, 'q')) {
+		window_pane_reset_mode_all(wp);
+		return (CMD_RETURN_NORMAL);
+	}
+
 	if (args_has(args, 'M')) {
 		if ((wp = cmd_mouse_pane(&shared->mouse, &s, NULL)) == NULL)
 			return (CMD_RETURN_NORMAL);
@@ -73,10 +78,10 @@ cmd_copy_mode_exec(struct cmd *self, struct cmdq_item *item)
 		return (CMD_RETURN_NORMAL);
 	}
 
-	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 (!window_pane_set_mode(wp, &window_copy_mode, NULL, args)) {
+		if (args_has(args, 'M'))
+			window_copy_start_drag(c, &shared->mouse);
+	}
 	if (args_has(self->args, 'u'))
 		window_copy_pageup(wp, 0);
 

cmd-display-menu.c

@@ -0,0 +1,178 @@
+/* $OpenBSD$ */
+
+/*
+ * 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"
+
+/*
+ * Display a menu on a client.
+ */
+
+static enum cmd_retval	cmd_display_menu_exec(struct cmd *,
+			    struct cmdq_item *);
+
+const struct cmd_entry cmd_display_menu_entry = {
+	.name = "display-menu",
+	.alias = "menu",
+
+	.args = { "c:t:T:x:y:", 1, -1 },
+	.usage = "[-c target-client] " CMD_TARGET_PANE_USAGE " [-T title] "
+		 "[-x position] [-y position] name key command ...",
+
+	.target = { 't', CMD_FIND_PANE, 0 },
+
+	.flags = CMD_AFTERHOOK,
+	.exec = cmd_display_menu_exec
+};
+
+static enum cmd_retval
+cmd_display_menu_exec(struct cmd *self, struct cmdq_item *item)
+{
+	struct args		*args = self->args;
+	struct client		*c;
+	struct session		*s = item->target.s;
+	struct winlink		*wl = item->target.wl;
+	struct window_pane	*wp = item->target.wp;
+	struct cmd_find_state	*fs = &item->target;
+	struct menu		*menu = NULL;
+	struct style_range	*sr;
+	struct menu_item	 menu_item;
+	const char		*xp, *yp, *key;
+	char			*title, *name;
+	int			 at, flags, i;
+	u_int			 px, py, ox, oy, sx, sy;
+
+	if ((c = cmd_find_client(item, args_get(args, 'c'), 0)) == NULL)
+		return (CMD_RETURN_ERROR);
+	if (c->overlay_draw != NULL)
+		return (CMD_RETURN_NORMAL);
+	at = status_at_line(c);
+
+	if (args_has(args, 'T'))
+		title = format_single(NULL, args_get(args, 'T'), c, s, wl, wp);
+	else
+		title = xstrdup("");
+
+	menu = menu_create(title);
+
+	for (i = 0; i != args->argc; /* nothing */) {
+		name = args->argv[i++];
+		if (*name == '\0') {
+			menu_add_item(menu, NULL, item, c, fs);
+			continue;
+		}
+
+		if (args->argc - i < 2) {
+			cmdq_error(item, "not enough arguments");
+			free(title);
+			menu_free(menu);
+			return (CMD_RETURN_ERROR);
+		}
+		key = args->argv[i++];
+
+		menu_item.name = name;
+		menu_item.key = key_string_lookup_string(key);
+		menu_item.command = args->argv[i++];
+
+		menu_add_item(menu, &menu_item, item, c, fs);
+	}
+	free(title);
+	if (menu == NULL) {
+		cmdq_error(item, "invalid menu arguments");
+		return (CMD_RETURN_ERROR);
+	}
+	if (menu->count == 0) {
+		menu_free(menu);
+		return (CMD_RETURN_NORMAL);
+	}
+
+	xp = args_get(args, 'x');
+	if (xp == NULL)
+		px = 0;
+	else if (strcmp(xp, "R") == 0)
+		px = c->tty.sx - 1;
+	else if (strcmp(xp, "P") == 0) {
+		tty_window_offset(&c->tty, &ox, &oy, &sx, &sy);
+		if (wp->xoff >= ox)
+			px = wp->xoff - ox;
+		else
+			px = 0;
+	} else if (strcmp(xp, "M") == 0 && item->shared->mouse.valid) {
+		if (item->shared->mouse.x > (menu->width + 4) / 2)
+			px = item->shared->mouse.x - (menu->width + 4) / 2;
+		else
+			px = 0;
+	}
+	else if (strcmp(xp, "W") == 0) {
+		if (at == -1)
+			px = 0;
+		else {
+			TAILQ_FOREACH(sr, &c->status.entries[0].ranges, entry) {
+				if (sr->type != STYLE_RANGE_WINDOW)
+					continue;
+				if (sr->argument == (u_int)wl->idx)
+					break;
+			}
+			if (sr != NULL)
+				px = sr->start;
+			else
+				px = 0;
+		}
+	} else
+		px = strtoul(xp, NULL, 10);
+	if (px + menu->width + 4 >= c->tty.sx)
+		px = c->tty.sx - menu->width - 4;
+
+	yp = args_get(args, 'y');
+	if (yp == NULL)
+		py = 0;
+	else if (strcmp(yp, "P") == 0) {
+		tty_window_offset(&c->tty, &ox, &oy, &sx, &sy);
+		if (wp->yoff + wp->sy >= oy)
+			py = wp->yoff + wp->sy - oy;
+		else
+			py = 0;
+	} else if (strcmp(yp, "M") == 0 && item->shared->mouse.valid)
+		py = item->shared->mouse.y + menu->count + 2;
+	else if (strcmp(yp, "S") == 0) {
+		if (at == -1)
+			py = c->tty.sy;
+		else if (at == 0)
+			py = status_line_size(c) + menu->count + 2;
+		else
+			py = at;
+	} else
+		py = strtoul(yp, NULL, 10);
+	if (py < menu->count + 2)
+		py = 0;
+	else
+		py -= menu->count + 2;
+	if (py + menu->count + 2 >= c->tty.sy)
+		py = c->tty.sy - menu->count - 2;
+
+	flags = 0;
+	if (!item->shared->mouse.valid)
+		flags |= MENU_NOMOUSE;
+	if (menu_display(menu, flags, item, px, py, c, fs, NULL, NULL) != 0)
+		return (CMD_RETURN_NORMAL);
+	return (CMD_RETURN_WAIT);
+}

cmd-display-message.c

@@ -39,8 +39,8 @@ const struct cmd_entry cmd_display_message_entry = {
 	.name = "display-message",
 	.alias = "display",
 
-	.args = { "ac:pt:F:v", 0, 1 },
-	.usage = "[-apv] [-c target-client] [-F format] "
+	.args = { "ac:Ipt:F:v", 0, 1 },
+	.usage = "[-aIpv] [-c target-client] [-F format] "
 		 CMD_TARGET_PANE_USAGE " [message]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -66,10 +66,19 @@ cmd_display_message_exec(struct cmd *self, struct cmdq_item *item)
 	struct winlink		*wl = item->target.wl;
 	struct window_pane	*wp = item->target.wp;
 	const char		*template;
-	char			*msg;
+	char			*msg, *cause;
 	struct format_tree	*ft;
 	int			 flags;
 
+	if (args_has(args, 'I')) {
+		if (window_pane_start_input(wp, item, &cause) != 0) {
+			cmdq_error(item, "%s", cause);
+			free(cause);
+			return (CMD_RETURN_ERROR);
+		}
+		return (CMD_RETURN_WAIT);
+	}
+
 	if (args_has(args, 'F') && args->argc != 0) {
 		cmdq_error(item, "only one of -F or argument must be given");
 		return (CMD_RETURN_ERROR);
@@ -100,8 +109,7 @@ cmd_display_message_exec(struct cmd *self, struct cmdq_item *item)
 	format_defaults(ft, target_c, s, wl, wp);
 
 	if (args_has(args, 'a')) {
-		if (item != NULL)
-			format_each(ft, cmd_display_message_each, item);
+		format_each(ft, cmd_display_message_each, item);
 		return (CMD_RETURN_NORMAL);
 	}
 

cmd-display-panes.c

@@ -18,8 +18,8 @@
 
 #include <sys/types.h>
 
-#include <ctype.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "tmux.h"
 
@@ -30,9 +30,6 @@
 static enum cmd_retval	cmd_display_panes_exec(struct cmd *,
 			    struct cmdq_item *);
 
-static void		cmd_display_panes_callback(struct client *,
-			    struct window_pane *);
-
 const struct cmd_entry cmd_display_panes_entry = {
 	.name = "display-panes",
 	.alias = "displayp",
@@ -44,32 +41,218 @@ const struct cmd_entry cmd_display_panes_entry = {
 	.exec = cmd_display_panes_exec
 };
 
+struct cmd_display_panes_data {
+	struct cmdq_item	*item;
+	char			*command;
+};
+
+static void
+cmd_display_panes_draw_pane(struct screen_redraw_ctx *ctx,
+    struct window_pane *wp)
+{
+	struct client		*c = ctx->c;
+	struct tty		*tty = &c->tty;
+	struct session		*s = c->session;
+	struct options		*oo = s->options;
+	struct window		*w = wp->window;
+	struct grid_cell	 gc;
+	u_int			 idx, px, py, i, j, xoff, yoff, sx, sy;
+	int			 colour, active_colour;
+	char			 buf[16], *ptr;
+	size_t			 len;
+
+	if (wp->xoff + wp->sx <= ctx->ox ||
+	    wp->xoff >= ctx->ox + ctx->sx ||
+	    wp->yoff + wp->sy <= ctx->oy ||
+	    wp->yoff >= ctx->oy + ctx->sy)
+		return;
+
+	if (wp->xoff >= ctx->ox && wp->xoff + wp->sx <= ctx->ox + ctx->sx) {
+		/* All visible. */
+		xoff = wp->xoff - ctx->ox;
+		sx = wp->sx;
+	} else if (wp->xoff < ctx->ox &&
+	    wp->xoff + wp->sx > ctx->ox + ctx->sx) {
+		/* Both left and right not visible. */
+		xoff = 0;
+		sx = ctx->sx;
+	} else if (wp->xoff < ctx->ox) {
+		/* Left not visible. */
+		xoff = 0;
+		sx = wp->sx - (ctx->ox - wp->xoff);
+	} else {
+		/* Right not visible. */
+		xoff = wp->xoff - ctx->ox;
+		sx = wp->sx - xoff;
+	}
+	if (wp->yoff >= ctx->oy && wp->yoff + wp->sy <= ctx->oy + ctx->sy) {
+		/* All visible. */
+		yoff = wp->yoff - ctx->oy;
+		sy = wp->sy;
+	} else if (wp->yoff < ctx->oy &&
+	    wp->yoff + wp->sy > ctx->oy + ctx->sy) {
+		/* Both top and bottom not visible. */
+		yoff = 0;
+		sy = ctx->sy;
+	} else if (wp->yoff < ctx->oy) {
+		/* Top not visible. */
+		yoff = 0;
+		sy = wp->sy - (ctx->oy - wp->yoff);
+	} else {
+		/* Bottom not visible. */
+		yoff = wp->yoff - ctx->oy;
+		sy = wp->sy - yoff;
+	}
+
+	if (ctx->statustop)
+		yoff += ctx->statuslines;
+	px = sx / 2;
+	py = sy / 2;
+
+	if (window_pane_index(wp, &idx) != 0)
+		fatalx("index not found");
+	len = xsnprintf(buf, sizeof buf, "%u", idx);
+
+	if (sx < len)
+		return;
+	colour = options_get_number(oo, "display-panes-colour");
+	active_colour = options_get_number(oo, "display-panes-active-colour");
+
+	if (sx < len * 6 || sy < 5) {
+		tty_cursor(tty, xoff + px - len / 2, yoff + py);
+		goto draw_text;
+	}
+
+	px -= len * 3;
+	py -= 2;
+
+	memcpy(&gc, &grid_default_cell, sizeof gc);
+	if (w->active == wp)
+		gc.bg = active_colour;
+	else
+		gc.bg = colour;
+	gc.flags |= GRID_FLAG_NOPALETTE;
+
+	tty_attributes(tty, &gc, wp);
+	for (ptr = buf; *ptr != '\0'; ptr++) {
+		if (*ptr < '0' || *ptr > '9')
+			continue;
+		idx = *ptr - '0';
+
+		for (j = 0; j < 5; j++) {
+			for (i = px; i < px + 5; i++) {
+				tty_cursor(tty, xoff + i, yoff + py + j);
+				if (window_clock_table[idx][j][i - px])
+					tty_putc(tty, ' ');
+			}
+		}
+		px += 6;
+	}
+
+	len = xsnprintf(buf, sizeof buf, "%ux%u", wp->sx, wp->sy);
+	if (sx < len || sy < 6)
+		return;
+	tty_cursor(tty, xoff + sx - len, yoff);
+
+draw_text:
+	memcpy(&gc, &grid_default_cell, sizeof gc);
+	if (w->active == wp)
+		gc.fg = active_colour;
+	else
+		gc.fg = colour;
+	gc.flags |= GRID_FLAG_NOPALETTE;
+
+	tty_attributes(tty, &gc, wp);
+	tty_puts(tty, buf);
+
+	tty_cursor(tty, 0, 0);
+}
+
+static void
+cmd_display_panes_draw(struct client *c, struct screen_redraw_ctx *ctx)
+{
+	struct window		*w = c->session->curw->window;
+	struct window_pane	*wp;
+
+	log_debug("%s: %s @%u", __func__, c->name, w->id);
+
+	TAILQ_FOREACH(wp, &w->panes, entry) {
+		if (window_pane_visible(wp))
+			cmd_display_panes_draw_pane(ctx, wp);
+	}
+}
+
+static void
+cmd_display_panes_free(struct client *c)
+{
+	struct cmd_display_panes_data	*cdata = c->overlay_data;
+
+	if (cdata->item != NULL)
+		cmdq_continue(cdata->item);
+	free(cdata->command);
+	free(cdata);
+}
+
+static int
+cmd_display_panes_key(struct client *c, struct key_event *event)
+{
+	struct cmd_display_panes_data	*cdata = c->overlay_data;
+	struct cmdq_item		*new_item;
+	char				*cmd, *expanded;
+	struct window			*w = c->session->curw->window;
+	struct window_pane		*wp;
+	struct cmd_parse_result		*pr;
+
+	if (event->key < '0' || event->key > '9')
+		return (-1);
+
+	wp = window_pane_at_index(w, event->key - '0');
+	if (wp == NULL)
+		return (1);
+	window_unzoom(w);
+
+	xasprintf(&expanded, "%%%u", wp->id);
+	cmd = cmd_template_replace(cdata->command, expanded, 1);
+
+	pr = cmd_parse_from_string(cmd, NULL);
+	switch (pr->status) {
+	case CMD_PARSE_EMPTY:
+		new_item = NULL;
+		break;
+	case CMD_PARSE_ERROR:
+		new_item = cmdq_get_error(pr->error);
+		free(pr->error);
+		cmdq_append(c, new_item);
+		break;
+	case CMD_PARSE_SUCCESS:
+		new_item = cmdq_get_command(pr->cmdlist, NULL, NULL, 0);
+		cmd_list_free(pr->cmdlist);
+		cmdq_append(c, new_item);
+		break;
+	}
+
+	free(cmd);
+	free(expanded);
+	return (1);
+}
+
 static enum cmd_retval
 cmd_display_panes_exec(struct cmd *self, struct cmdq_item *item)
 {
-	struct args	*args = self->args;
-	struct client	*c;
-	struct session	*s;
-	u_int		 delay;
-	char		*cause;
+	struct args			*args = self->args;
+	struct client			*c;
+	struct session			*s;
+	u_int		 		 delay;
+	char				*cause;
+	struct cmd_display_panes_data	*cdata;
 
 	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
 		return (CMD_RETURN_ERROR);
 	s = c->session;
 
-	if (c->identify_callback != NULL)
+	if (c->overlay_draw != NULL)
 		return (CMD_RETURN_NORMAL);
 
-	c->identify_callback = cmd_display_panes_callback;
-	if (args->argc != 0)
-		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;
-
 	if (args_has(args, 'd')) {
 		delay = args_strtonum(args, 'd', 0, UINT_MAX, &cause);
 		if (cause != NULL) {
@@ -79,65 +262,21 @@ cmd_display_panes_exec(struct cmd *self, struct cmdq_item *item)
 		}
 	} else
 		delay = options_get_number(s->options, "display-panes-time");
-	server_client_set_identify(c, delay);
+
+	cdata = xmalloc(sizeof *cdata);
+	if (args->argc != 0)
+		cdata->command = xstrdup(args->argv[0]);
+	else
+		cdata->command = xstrdup("select-pane -t '%%'");
+	if (args_has(args, 'b'))
+		cdata->item = NULL;
+	else
+		cdata->item = item;
+
+	server_client_set_overlay(c, delay, cmd_display_panes_draw,
+	    cmd_display_panes_key, cmd_display_panes_free, cdata);
 
 	if (args_has(args, 'b'))
 		return (CMD_RETURN_NORMAL);
 	return (CMD_RETURN_WAIT);
 }
-
-static enum cmd_retval
-cmd_display_panes_error(struct cmdq_item *item, void *data)
-{
-	char	*error = data;
-
-	cmdq_error(item, "%s", error);
-	free(error);
-
-	return (CMD_RETURN_NORMAL);
-}
-
-static void
-cmd_display_panes_callback(struct client *c, struct window_pane *wp)
-{
-	struct cmd_list		*cmdlist;
-	struct cmdq_item	*new_item;
-	char			*cmd, *expanded, *cause;
-
-	if (wp == NULL)
-		goto out;
-
-	xasprintf(&expanded, "%%%u", wp->id);
-	cmd = cmd_template_replace(c->identify_callback_data, expanded, 1);
-
-	cmdlist = cmd_string_parse(cmd, NULL, 0, &cause);
-	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) {
-		if (c->identify_callback_item != NULL)
-			cmdq_insert_after(c->identify_callback_item, new_item);
-		else
-			cmdq_append(c, new_item);
-	}
-
-	free(cmd);
-	free(expanded);
-
-out:
-	if (c->identify_callback_item != NULL) {
-		c->identify_callback_item->flags &= ~CMDQ_WAITING;
-		c->identify_callback_item = NULL;
-	}
-
-	free(c->identify_callback_data);
-	c->identify_callback_data = NULL;
-
-	c->identify_callback = NULL;
-}

cmd-find-window.c

@@ -32,8 +32,8 @@ const struct cmd_entry cmd_find_window_entry = {
 	.name = "find-window",
 	.alias = "findw",
 
-	.args = { "CNt:TZ", 1, 1 },
-	.usage = "[-CNTZ] " CMD_TARGET_PANE_USAGE " match-string",
+	.args = { "CNrt:TZ", 1, 1 },
+	.usage = "[-CNrTZ] " CMD_TARGET_PANE_USAGE " match-string",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -57,30 +57,59 @@ cmd_find_window_exec(struct cmd *self, struct cmdq_item *item)
 	if (!C && !N && !T)
 		C = N = T = 1;
 
-	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);
+	if (!args_has(args, 'r')) {
+		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);
+	} else {
+		if (C && N && T) {
+			xasprintf(&filter,
+			    "#{||:"
+			    "#{C/r:%s},#{||:#{m/r:%s,#{window_name}},"
+			    "#{m/r:%s,#{pane_title}}}}",
+			    s, s, s);
+		} else if (C && N) {
+			xasprintf(&filter,
+			    "#{||:#{C/r:%s},#{m/r:%s,#{window_name}}}",
+			    s, s);
+		} else if (C && T) {
+			xasprintf(&filter,
+			    "#{||:#{C/r:%s},#{m/r:%s,#{pane_title}}}",
+			    s, s);
+		} else if (N && T) {
+			xasprintf(&filter,
+			    "#{||:#{m/r:%s,#{window_name}},"
+			    "#{m/r:%s,#{pane_title}}}",
+			    s, s);
+		} else if (C)
+			xasprintf(&filter, "#{C/r:%s}", s);
+		else if (N)
+			xasprintf(&filter, "#{m/r:%s,#{window_name}}", s);
+		else
+			xasprintf(&filter, "#{m/r:%s,#{pane_title}}", s);
+	}
 
 	new_args = args_parse("", 1, &argv);
 	if (args_has(args, 'Z'))

cmd-find.c

@@ -75,38 +75,12 @@ static const char *cmd_find_pane_table[][2] = {
 	{ NULL, NULL }
 };
 
-/* Get session from TMUX if present. */
-static struct session *
-cmd_find_try_TMUX(struct client *c)
-{
-	struct environ_entry	*envent;
-	char			 tmp[256];
-	long long		 pid;
-	u_int			 session;
-	struct session		*s;
-
-	envent = environ_find(c->environ, "TMUX");
-	if (envent == NULL)
-		return (NULL);
-
-	if (sscanf(envent->value, "%255[^,],%lld,%d", tmp, &pid, &session) != 3)
-		return (NULL);
-	if (pid != getpid())
-		return (NULL);
-	log_debug("%s: client %p TMUX %s (session $%u)", __func__, c,
-	    envent->value, session);
-
-	s = session_find_by_id(session);
-	if (s != NULL)
-		log_debug("%s: session $%u still exists", __func__, s->id);
-	return (s);
-}
-
 /* Find pane containing client if any. */
 static struct window_pane *
 cmd_find_inside_pane(struct client *c)
 {
 	struct window_pane	*wp;
+	struct environ_entry	*envent;
 
 	if (c == NULL)
 		return (NULL);
@@ -115,6 +89,11 @@ cmd_find_inside_pane(struct client *c)
 		if (wp->fd != -1 && strcmp(wp->tty, c->ttyname) == 0)
 			break;
 	}
+	if (wp == NULL) {
+		envent = environ_find(c->environ, "TMUX_PANE");
+		if (envent != NULL)
+			wp = window_pane_find_by_id_str(envent->value);
+	}
 	if (wp != NULL)
 		log_debug("%s: got pane %%%u (%s)", __func__, wp->id, wp->tty);
 	return (wp);
@@ -879,8 +858,6 @@ cmd_find_from_mouse(struct cmd_find_state *fs, struct mouse_event *m, int flags)
 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. */
@@ -902,30 +879,6 @@ cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
 	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.
@@ -947,17 +900,7 @@ cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
 	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. */
+	/* We can't find the pane so need to guess. */
 	return (cmd_find_from_nothing(fs, flags));
 }
 
@@ -1005,6 +948,8 @@ cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
 		strlcat(tmp, "CANFAIL,", sizeof tmp);
 	if (*tmp != '\0')
 		tmp[strlen(tmp) - 1] = '\0';
+	else
+		strlcat(tmp, "NONE", sizeof tmp);
 	log_debug("%s: target %s, type %s, item %p, flags %s", __func__,
 	    target == NULL ? "none" : target, s, item, tmp);
 
@@ -1039,12 +984,16 @@ cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
 		switch (type) {
 		case CMD_FIND_PANE:
 			fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
-			if (fs->wp != NULL)
+			if (fs->wp != NULL) {
 				fs->w = fs->wl->window;
-			break;
+				break;
+			}
+			/* FALLTHROUGH */
 		case CMD_FIND_WINDOW:
 		case CMD_FIND_SESSION:
 			fs->wl = cmd_mouse_window(m, &fs->s);
+			if (fs->wl == NULL && fs->s != NULL)
+				fs->wl = fs->s->curw;
 			if (fs->wl != NULL) {
 				fs->w = fs->wl->window;
 				fs->wp = fs->w->active;

cmd-if-shell.c

@@ -49,8 +49,7 @@ const struct cmd_entry cmd_if_shell_entry = {
 };
 
 struct cmd_if_shell_data {
-	char			*file;
-	u_int			 line;
+	struct cmd_parse_input	 input;
 
 	char			*cmd_if;
 	char			*cmd_else;
@@ -64,53 +63,68 @@ 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 mouse_event		*m = &item->shared->mouse;
 	struct cmd_if_shell_data	*cdata;
-	char				*shellcmd, *cmd, *cause;
-	struct cmd_list			*cmdlist;
+	char				*shellcmd, *cmd;
 	struct cmdq_item		*new_item;
+	struct cmd_find_state		*fs = &item->target;
 	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 session			*s = fs->s;
+	struct winlink			*wl = fs->wl;
+	struct window_pane		*wp = fs->wp;
+	struct cmd_parse_input		 pi;
+	struct cmd_parse_result		*pr;
 
 	shellcmd = format_single(item, args->argv[0], c, s, wl, wp);
 	if (args_has(args, 'F')) {
-		cmd = NULL;
 		if (*shellcmd != '0' && *shellcmd != '\0')
 			cmd = args->argv[1];
 		else if (args->argc == 3)
 			cmd = args->argv[2];
+		else
+			cmd = NULL;
 		free(shellcmd);
 		if (cmd == NULL)
 			return (CMD_RETURN_NORMAL);
-		cmdlist = cmd_string_parse(cmd, NULL, 0, &cause);
-		if (cmdlist == NULL) {
-			if (cause != NULL) {
-				cmdq_error(item, "%s", cause);
-				free(cause);
-			}
+
+		memset(&pi, 0, sizeof pi);
+		if (self->file != NULL)
+			pi.file = self->file;
+		pi.line = self->line;
+		pi.item = item;
+		pi.c = c;
+		cmd_find_copy_state(&pi.fs, fs);
+
+		pr = cmd_parse_from_string(cmd, &pi);
+		switch (pr->status) {
+		case CMD_PARSE_EMPTY:
+			break;
+		case CMD_PARSE_ERROR:
+			cmdq_error(item, "%s", pr->error);
+			free(pr->error);
 			return (CMD_RETURN_ERROR);
+		case CMD_PARSE_SUCCESS:
+			new_item = cmdq_get_command(pr->cmdlist, fs, m, 0);
+			cmdq_insert_after(item, new_item);
+			cmd_list_free(pr->cmdlist);
+			break;
 		}
-		new_item = cmdq_get_command(cmdlist, NULL, &shared->mouse, 0);
-		cmdq_insert_after(item, new_item);
-		cmd_list_free(cmdlist);
 		return (CMD_RETURN_NORMAL);
 	}
 
 	cdata = xcalloc(1, sizeof *cdata);
-	if (self->file != NULL) {
-		cdata->file = xstrdup(self->file);
-		cdata->line = self->line;
-	}
 
 	cdata->cmd_if = xstrdup(args->argv[1]);
 	if (args->argc == 3)
 		cdata->cmd_else = xstrdup(args->argv[2]);
 	else
 		cdata->cmd_else = NULL;
+	memcpy(&cdata->mouse, m, sizeof cdata->mouse);
 
-	cdata->client = item->client;
+	if (!args_has(args, 'b'))
+		cdata->client = item->client;
+	else
+		cdata->client = c;
 	if (cdata->client != NULL)
 		cdata->client->references++;
 
@@ -118,7 +132,16 @@ cmd_if_shell_exec(struct cmd *self, struct cmdq_item *item)
 		cdata->item = item;
 	else
 		cdata->item = NULL;
-	memcpy(&cdata->mouse, &shared->mouse, sizeof cdata->mouse);
+
+	memset(&cdata->input, 0, sizeof cdata->input);
+	if (self->file != NULL)
+		cdata->input.file = xstrdup(self->file);
+	cdata->input.line = self->line;
+	cdata->input.item = cdata->item;
+	cdata->input.c = c;
+	if (cdata->input.c != NULL)
+		cdata->input.c->references++;
+	cmd_find_copy_state(&cdata->input.fs, fs);
 
 	if (job_run(shellcmd, s, server_client_get_cwd(item->client, s), NULL,
 	    cmd_if_shell_callback, cmd_if_shell_free, cdata, 0) == NULL) {
@@ -139,11 +162,11 @@ cmd_if_shell_callback(struct job *job)
 {
 	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;
+	struct mouse_event		*m = &cdata->mouse;
+	struct cmdq_item		*new_item = NULL;
+	char				*cmd;
 	int				 status;
+	struct cmd_parse_result		*pr;
 
 	status = job_get_status(job);
 	if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
@@ -153,17 +176,20 @@ cmd_if_shell_callback(struct job *job)
 	if (cmd == NULL)
 		goto out;
 
-	cmdlist = cmd_string_parse(cmd, file, line, &cause);
-	if (cmdlist == 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);
+	pr = cmd_parse_from_string(cmd, &cdata->input);
+	switch (pr->status) {
+	case CMD_PARSE_EMPTY:
+		break;
+	case CMD_PARSE_ERROR:
+		if (cdata->item != NULL)
+		       cmdq_error(cdata->item, "%s", pr->error);
+		free(pr->error);
+		break;
+	case CMD_PARSE_SUCCESS:
+		new_item = cmdq_get_command(pr->cmdlist, NULL, m, 0);
+		cmd_list_free(pr->cmdlist);
+		break;
 	}
-
 	if (new_item != NULL) {
 		if (cdata->item == NULL)
 			cmdq_append(c, new_item);
@@ -173,7 +199,7 @@ cmd_if_shell_callback(struct job *job)
 
 out:
 	if (cdata->item != NULL)
-		cdata->item->flags &= ~CMDQ_WAITING;
+		cmdq_continue(cdata->item);
 }
 
 static void
@@ -187,6 +213,9 @@ cmd_if_shell_free(void *data)
 	free(cdata->cmd_else);
 	free(cdata->cmd_if);
 
-	free(cdata->file);
+	if (cdata->input.c != NULL)
+		server_client_unref(cdata->input.c);
+	free((void *)cdata->input.file);
+
 	free(cdata);
 }

cmd-join-pane.c

@@ -20,6 +20,7 @@
 #include <sys/types.h>
 
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 
 #include "tmux.h"
@@ -34,8 +35,8 @@ const struct cmd_entry cmd_join_pane_entry = {
 	.name = "join-pane",
 	.alias = "joinp",
 
-	.args = { "bdhvp:l:s:t:", 0, 0 },
-	.usage = "[-bdhv] [-p percentage|-l size] " CMD_SRCDST_PANE_USAGE,
+	.args = { "bdfhvp:l:s:t:", 0, 0 },
+	.usage = "[-bdfhv] [-l size] " CMD_SRCDST_PANE_USAGE,
 
 	.source = { 's', CMD_FIND_PANE, CMD_FIND_DEFAULT_MARKED },
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -51,7 +52,7 @@ 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,
 
-	.source = { 's', CMD_FIND_PANE, 0 },
+	.source = { 's', CMD_FIND_PANE, CMD_FIND_DEFAULT_MARKED },
 	.target = { 't', CMD_FIND_PANE, 0 },
 
 	.flags = 0,
@@ -67,11 +68,13 @@ cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 	struct winlink		*src_wl, *dst_wl;
 	struct window		*src_w, *dst_w;
 	struct window_pane	*src_wp, *dst_wp;
-	char			*cause;
-	int			 size, percentage, dst_idx;
+	char			*cause, *copy;
+	const char		*errstr, *p;
+	size_t			 plen;
+	int			 size, percentage, dst_idx, not_same_window;
+	int			 flags;
 	enum layout_type	 type;
 	struct layout_cell	*lc;
-	int			 not_same_window;
 
 	if (self->entry == &cmd_join_pane_entry)
 		not_same_window = 1;
@@ -104,12 +107,28 @@ cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 		type = LAYOUT_LEFTRIGHT;
 
 	size = -1;
-	if (args_has(args, 'l')) {
-		size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
-		if (cause != NULL) {
-			cmdq_error(item, "size %s", cause);
-			free(cause);
-			return (CMD_RETURN_ERROR);
+	if ((p = args_get(args, 'l')) != NULL) {
+		plen = strlen(p);
+		if (p[plen - 1] == '%') {
+			copy = xstrdup(p);
+			copy[plen - 1] = '\0';
+			percentage = strtonum(copy, 0, INT_MAX, &errstr);
+			free(copy);
+			if (errstr != NULL) {
+				cmdq_error(item, "percentage %s", errstr);
+				return (CMD_RETURN_ERROR);
+			}
+			if (type == LAYOUT_TOPBOTTOM)
+				size = (dst_wp->sy * percentage) / 100;
+			else
+				size = (dst_wp->sx * percentage) / 100;
+		} else {
+			size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
+			if (cause != NULL) {
+				cmdq_error(item, "size %s", cause);
+				free(cause);
+				return (CMD_RETURN_ERROR);
+			}
 		}
 	} else if (args_has(args, 'p')) {
 		percentage = args_strtonum(args, 'p', 0, 100, &cause);
@@ -123,7 +142,14 @@ cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 		else
 			size = (dst_wp->sx * percentage) / 100;
 	}
-	lc = layout_split_pane(dst_wp, type, size, args_has(args, 'b'), 0);
+
+	flags = 0;
+	if (args_has(args, 'b'))
+		flags |= SPAWN_BEFORE;
+	if (args_has(args, 'f'))
+		flags |= SPAWN_FULLSIZE;
+
+	lc = layout_split_pane(dst_wp, type, size, flags);
 	if (lc == NULL) {
 		cmdq_error(item, "create pane failed: pane too small");
 		return (CMD_RETURN_ERROR);
@@ -135,6 +161,8 @@ cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 	TAILQ_REMOVE(&src_w->panes, src_wp, entry);
 
 	src_wp->window = dst_w;
+	options_set_parent(src_wp->options, dst_w->options);
+	src_wp->flags |= PANE_STYLECHANGED;
 	TAILQ_INSERT_AFTER(&dst_w->panes, dst_wp, src_wp, entry);
 	layout_assign_pane(lc, src_wp);
 
@@ -144,7 +172,7 @@ cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 	server_redraw_window(dst_w);
 
 	if (!args_has(args, 'd')) {
-		window_set_active_pane(dst_w, src_wp);
+		window_set_active_pane(dst_w, src_wp, 1);
 		session_select(dst_s, dst_idx);
 		cmd_find_from_session(current, dst_s, 0);
 		server_redraw_session(dst_s);

cmd-kill-pane.c

@@ -37,7 +37,7 @@ const struct cmd_entry cmd_kill_pane_entry = {
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
-	.flags = 0,
+	.flags = CMD_AFTERHOOK,
 	.exec = cmd_kill_pane_exec
 };
 

cmd-kill-session.c

@@ -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, __func__);
+				session_destroy(sloop, 1, __func__);
 			}
 		}
 	} else {
 		server_destroy_session(s);
-		session_destroy(s, __func__);
+		session_destroy(s, 1, __func__);
 	}
 	return (CMD_RETURN_NORMAL);
 }

cmd-list-keys.c

@@ -36,8 +36,8 @@ const struct cmd_entry cmd_list_keys_entry = {
 	.name = "list-keys",
 	.alias = "lsk",
 
-	.args = { "T:", 0, 0 },
-	.usage = "[-T key-table]",
+	.args = { "1aNP:T:", 0, 1 },
+	.usage = "[-1aN] [-P prefix-string] [-T key-table] [key]",
 
 	.flags = CMD_STARTSERVER|CMD_AFTERHOOK,
 	.exec = cmd_list_keys_exec
@@ -47,32 +47,164 @@ const struct cmd_entry cmd_list_commands_entry = {
 	.name = "list-commands",
 	.alias = "lscm",
 
-	.args = { "F:", 0, 0 },
-	.usage = "[-F format]",
+	.args = { "F:", 0, 1 },
+	.usage = "[-F format] [command]",
 
 	.flags = CMD_STARTSERVER|CMD_AFTERHOOK,
 	.exec = cmd_list_keys_exec
 };
 
+static u_int
+cmd_list_keys_get_width(const char *tablename, key_code only)
+{
+	struct key_table	*table;
+	struct key_binding	*bd;
+	u_int			 width, keywidth = 0;
+
+	table = key_bindings_get_table(tablename, 0);
+	if (table == NULL)
+		return (0);
+	bd = key_bindings_first(table);
+	while (bd != NULL) {
+		if ((only != KEYC_UNKNOWN && bd->key != only) ||
+		    KEYC_IS_MOUSE(bd->key) ||
+		    bd->note == NULL) {
+			bd = key_bindings_next(table, bd);
+			continue;
+		}
+		width = utf8_cstrwidth(key_string_lookup_key(bd->key));
+		if (width > keywidth)
+			keywidth = width;
+
+		bd = key_bindings_next(table, bd);
+	}
+	return (keywidth);
+}
+
+static int
+cmd_list_keys_print_notes(struct cmdq_item *item, struct args *args,
+    const char *tablename, u_int keywidth, key_code only, const char *prefix)
+{
+	struct client		*c = cmd_find_client(item, NULL, 1);
+	struct key_table	*table;
+	struct key_binding	*bd;
+	const char		*key;
+	char			*tmp, *note;
+	int	                 found = 0;
+
+	table = key_bindings_get_table(tablename, 0);
+	if (table == NULL)
+		return (0);
+	bd = key_bindings_first(table);
+	while (bd != NULL) {
+		if ((only != KEYC_UNKNOWN && bd->key != only) ||
+		    KEYC_IS_MOUSE(bd->key) ||
+		    (bd->note == NULL && !args_has(args, 'a'))) {
+			bd = key_bindings_next(table, bd);
+			continue;
+		}
+		found = 1;
+		key = key_string_lookup_key(bd->key);
+
+		if (bd->note == NULL)
+			note = cmd_list_print(bd->cmdlist, 1);
+		else
+			note = xstrdup(bd->note);
+		tmp = utf8_padcstr(key, keywidth + 1);
+		if (args_has(args, '1') && c != NULL)
+			status_message_set(c, "%s%s%s", prefix, tmp, note);
+		else
+			cmdq_print(item, "%s%s%s", prefix, tmp, note);
+		free(tmp);
+		free(note);
+
+		if (args_has(args, '1'))
+			break;
+		bd = key_bindings_next(table, bd);
+	}
+	return (found);
+}
+
+static char *
+cmd_list_keys_get_prefix(struct args *args, key_code *prefix)
+{
+	char	*s;
+
+	*prefix = options_get_number(global_s_options, "prefix");
+	if (!args_has(args, 'P')) {
+		if (*prefix != KEYC_NONE)
+			xasprintf(&s, "%s ", key_string_lookup_key(*prefix));
+		else
+			s = xstrdup("");
+	} else
+		s = xstrdup(args_get(args, 'P'));
+	return (s);
+}
+
 static enum cmd_retval
 cmd_list_keys_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
 	struct key_table	*table;
 	struct key_binding	*bd;
-	const char		*key, *tablename, *r;
-	char			*cp, tmp[BUFSIZ];
-	int			 repeat, width, tablewidth, keywidth;
+	const char		*tablename, *r;
+	char			*key, *cp, *tmp, *start, *empty;
+	key_code		 prefix, only = KEYC_UNKNOWN;
+	int			 repeat, width, tablewidth, keywidth, found = 0;
+	size_t			 tmpsize, tmpused, cplen;
 
 	if (self->entry == &cmd_list_commands_entry)
 		return (cmd_list_keys_commands(self, item));
 
+	if (args->argc != 0) {
+		only = key_string_lookup_string(args->argv[0]);
+		if (only == KEYC_UNKNOWN) {
+			cmdq_error(item, "invalid key: %s", args->argv[0]);
+			return (CMD_RETURN_ERROR);
+		}
+	}
+
 	tablename = args_get(args, 'T');
 	if (tablename != NULL && key_bindings_get_table(tablename, 0) == NULL) {
 		cmdq_error(item, "table %s doesn't exist", tablename);
 		return (CMD_RETURN_ERROR);
 	}
 
+	if (args_has(args, 'N')) {
+		if (tablename == NULL) {
+			start = cmd_list_keys_get_prefix(args, &prefix);
+			keywidth = cmd_list_keys_get_width("root", only);
+			if (prefix != KEYC_NONE) {
+				width = cmd_list_keys_get_width("prefix", only);
+				if (width == 0)
+					prefix = KEYC_NONE;
+				else if (width > keywidth)
+					keywidth = width;
+			}
+			empty = utf8_padcstr("", utf8_cstrwidth(start));
+
+			found = cmd_list_keys_print_notes(item, args, "root",
+			    keywidth, only, empty);
+			if (prefix != KEYC_NONE) {
+				if (cmd_list_keys_print_notes(item, args,
+				    "prefix", keywidth, only, start))
+					found = 1;
+			}
+			free(empty);
+		} else {
+			if (args_has(args, 'P'))
+				start = xstrdup(args_get(args, 'P'));
+			else
+				start = xstrdup("");
+			keywidth = cmd_list_keys_get_width(tablename, only);
+			found = cmd_list_keys_print_notes(item, args, tablename,
+			    keywidth, only, start);
+
+		}
+		free(start);
+		goto out;
+	}
+
 	repeat = 0;
 	tablewidth = keywidth = 0;
 	table = key_bindings_first_table ();
@@ -83,7 +215,11 @@ cmd_list_keys_exec(struct cmd *self, struct cmdq_item *item)
 		}
 		bd = key_bindings_first(table);
 		while (bd != NULL) {
-			key = key_string_lookup_key(bd->key);
+			if (only != KEYC_UNKNOWN && bd->key != only) {
+				bd = key_bindings_next(table, bd);
+				continue;
+			}
+			key = args_escape(key_string_lookup_key(bd->key));
 
 			if (bd->flags & KEY_BINDING_REPEAT)
 				repeat = 1;
@@ -95,11 +231,15 @@ cmd_list_keys_exec(struct cmd *self, struct cmdq_item *item)
 			if (width > keywidth)
 				keywidth = width;
 
+			free(key);
 			bd = key_bindings_next(table, bd);
 		}
 		table = key_bindings_next_table(table);
 	}
 
+	tmpsize = 256;
+	tmp = xmalloc(tmpsize);
+
 	table = key_bindings_first_table ();
 	while (table != NULL) {
 		if (tablename != NULL && strcmp(table->name, tablename) != 0) {
@@ -108,7 +248,12 @@ cmd_list_keys_exec(struct cmd *self, struct cmdq_item *item)
 		}
 		bd = key_bindings_first(table);
 		while (bd != NULL) {
-			key = key_string_lookup_key(bd->key);
+			if (only != KEYC_UNKNOWN && bd->key != only) {
+				bd = key_bindings_next(table, bd);
+				continue;
+			}
+			found = 1;
+			key = args_escape(key_string_lookup_key(bd->key));
 
 			if (!repeat)
 				r = "";
@@ -116,41 +261,68 @@ cmd_list_keys_exec(struct cmd *self, struct cmdq_item *item)
 				r = "-r ";
 			else
 				r = "   ";
-			xsnprintf(tmp, sizeof tmp, "%s-T ", r);
+			tmpused = xsnprintf(tmp, tmpsize, "%s-T ", r);
 
 			cp = utf8_padcstr(table->name, tablewidth);
-			strlcat(tmp, cp, sizeof tmp);
-			strlcat(tmp, " ", sizeof tmp);
+			cplen = strlen(cp) + 1;
+			while (tmpused + cplen + 1 >= tmpsize) {
+				tmpsize *= 2;
+				tmp = xrealloc(tmp, tmpsize);
+			}
+			tmpused = strlcat(tmp, cp, tmpsize);
+			tmpused = strlcat(tmp, " ", tmpsize);
 			free(cp);
 
 			cp = utf8_padcstr(key, keywidth);
-			strlcat(tmp, cp, sizeof tmp);
-			strlcat(tmp, " ", sizeof tmp);
+			cplen = strlen(cp) + 1;
+			while (tmpused + cplen + 1 >= tmpsize) {
+				tmpsize *= 2;
+				tmp = xrealloc(tmp, tmpsize);
+			}
+			tmpused = strlcat(tmp, cp, tmpsize);
+			tmpused = strlcat(tmp, " ", tmpsize);
 			free(cp);
 
-			cp = cmd_list_print(bd->cmdlist);
-			strlcat(tmp, cp, sizeof tmp);
+			cp = cmd_list_print(bd->cmdlist, 1);
+			cplen = strlen(cp);
+			while (tmpused + cplen + 1 >= tmpsize) {
+				tmpsize *= 2;
+				tmp = xrealloc(tmp, tmpsize);
+			}
+			strlcat(tmp, cp, tmpsize);
 			free(cp);
 
 			cmdq_print(item, "bind-key %s", tmp);
+
+			free(key);
 			bd = key_bindings_next(table, bd);
 		}
 		table = key_bindings_next_table(table);
 	}
 
+	free(tmp);
+
+out:
+	if (only != KEYC_UNKNOWN && !found) {
+		cmdq_error(item, "unknown key: %s", args->argv[0]);
+		return (CMD_RETURN_ERROR);
+	}
 	return (CMD_RETURN_NORMAL);
 }
 
 static enum cmd_retval
 cmd_list_keys_commands(struct cmd *self, struct cmdq_item *item)
 {
-	struct args		*args = self->args;
+	struct args		 *args = self->args;
 	const struct cmd_entry	**entryp;
 	const struct cmd_entry	 *entry;
 	struct format_tree	 *ft;
-	const char		 *template, *s;
+	const char		 *template, *s, *command = NULL;
 	char			 *line;
 
+	if (args->argc != 0)
+		command = args->argv[0];
+
 	if ((template = args_get(args, 'F')) == NULL) {
 		template = "#{command_list_name}"
 		    "#{?command_list_alias, (#{command_list_alias}),} "
@@ -162,6 +334,11 @@ cmd_list_keys_commands(struct cmd *self, struct cmdq_item *item)
 
 	for (entryp = cmd_table; *entryp != NULL; entryp++) {
 		entry = *entryp;
+		if (command != NULL &&
+		    (strcmp(entry->name, command) != 0 &&
+		    (entry->alias == NULL ||
+		    strcmp(entry->alias, command) != 0)))
+		    continue;
 
 		format_add(ft, "command_list_name", "%s", entry->name);
 		if (entry->alias != NULL)

cmd-list.c

@@ -1,126 +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 <stdlib.h>
-#include <string.h>
-
-#include "tmux.h"
-
-struct cmd_list *
-cmd_list_parse(int argc, char **argv, const char *file, u_int line,
-    char **cause)
-{
-	struct cmd_list	*cmdlist;
-	struct cmd	*cmd;
-	int		 i, lastsplit;
-	size_t		 arglen, new_argc;
-	char	       **copy_argv, **new_argv;
-
-	copy_argv = cmd_copy_argv(argc, argv);
-
-	cmdlist = xcalloc(1, sizeof *cmdlist);
-	cmdlist->references = 1;
-	TAILQ_INIT(&cmdlist->list);
-
-	lastsplit = 0;
-	for (i = 0; i < argc; i++) {
-		arglen = strlen(copy_argv[i]);
-		if (arglen == 0 || copy_argv[i][arglen - 1] != ';')
-			continue;
-		copy_argv[i][arglen - 1] = '\0';
-
-		if (arglen > 1 && copy_argv[i][arglen - 2] == '\\') {
-			copy_argv[i][arglen - 2] = ';';
-			continue;
-		}
-
-		new_argc = i - lastsplit;
-		new_argv = copy_argv + lastsplit;
-		if (arglen != 1)
-			new_argc++;
-
-		cmd = cmd_parse(new_argc, new_argv, file, line, cause);
-		if (cmd == NULL)
-			goto bad;
-		TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
-
-		lastsplit = i + 1;
-	}
-
-	if (lastsplit != argc) {
-		cmd = cmd_parse(argc - lastsplit, copy_argv + lastsplit,
-		    file, line, cause);
-		if (cmd == NULL)
-			goto bad;
-		TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
-	}
-
-	cmd_free_argv(argc, copy_argv);
-	return (cmdlist);
-
-bad:
-	cmd_list_free(cmdlist);
-	cmd_free_argv(argc, copy_argv);
-	return (NULL);
-}
-
-void
-cmd_list_free(struct cmd_list *cmdlist)
-{
-	struct cmd	*cmd, *cmd1;
-
-	if (--cmdlist->references != 0)
-		return;
-
-	TAILQ_FOREACH_SAFE(cmd, &cmdlist->list, qentry, cmd1) {
-		TAILQ_REMOVE(&cmdlist->list, cmd, qentry);
-		args_free(cmd->args);
-		free(cmd->file);
-		free(cmd);
-	}
-
-	free(cmdlist);
-}
-
-char *
-cmd_list_print(struct cmd_list *cmdlist)
-{
-	struct cmd	*cmd;
-	char		*buf, *this;
-	size_t		 len;
-
-	len = 1;
-	buf = xcalloc(1, len);
-
-	TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
-		this = cmd_print(cmd);
-
-		len += strlen(this) + 3;
-		buf = xrealloc(buf, len);
-
-		strlcat(buf, this, len);
-		if (TAILQ_NEXT(cmd, qentry) != NULL)
-			strlcat(buf, " ; ", len);
-
-		free(this);
-	}
-
-	return (buf);
-}

cmd-load-buffer.c

@@ -33,8 +33,6 @@
 
 static enum cmd_retval	cmd_load_buffer_exec(struct cmd *, struct cmdq_item *);
 
-static void		cmd_load_buffer_callback(struct client *, int, void *);
-
 const struct cmd_entry cmd_load_buffer_entry = {
 	.name = "load-buffer",
 	.alias = "loadb",
@@ -48,9 +46,40 @@ const struct cmd_entry cmd_load_buffer_entry = {
 
 struct cmd_load_buffer_data {
 	struct cmdq_item	*item;
-	char			*bufname;
+	char			*name;
 };
 
+static void
+cmd_load_buffer_done(__unused struct client *c, const char *path, int error,
+    int closed, struct evbuffer *buffer, void *data)
+{
+	struct cmd_load_buffer_data	*cdata = data;
+	struct cmdq_item		*item = cdata->item;
+	void				*bdata = EVBUFFER_DATA(buffer);
+	size_t				 bsize = EVBUFFER_LENGTH(buffer);
+	void				*copy;
+	char				*cause;
+
+	if (!closed)
+		return;
+
+	if (error != 0)
+		cmdq_error(item, "%s: %s", path, strerror(error));
+	else if (bsize != 0) {
+		copy = xmalloc(bsize);
+		memcpy(copy, bdata, bsize);
+		if (paste_set(copy, bsize, cdata->name, &cause) != 0) {
+			cmdq_error(item, "%s", cause);
+			free(cause);
+			free(copy);
+		}
+	}
+	cmdq_continue(item);
+
+	free(cdata->name);
+	free(cdata);
+}
+
 static enum cmd_retval
 cmd_load_buffer_exec(struct cmd *self, struct cmdq_item *item)
 {
@@ -60,124 +89,19 @@ cmd_load_buffer_exec(struct cmd *self, struct cmdq_item *item)
 	struct session			*s = item->target.s;
 	struct winlink			*wl = item->target.wl;
 	struct window_pane		*wp = item->target.wp;
-	FILE				*f;
-	const char			*bufname;
-	char				*pdata = NULL, *new_pdata, *cause;
-	char				*path, *file;
-	size_t				 psize;
-	int				 ch, error;
+	const char			*bufname = args_get(args, 'b');
+	char				*path;
 
-	bufname = NULL;
-	if (args_has(args, 'b'))
-		bufname = args_get(args, 'b');
+	cdata = xmalloc(sizeof *cdata);
+	cdata->item = item;
+	if (bufname != NULL)
+		cdata->name = xstrdup(bufname);
+	else
+		cdata->name = NULL;
 
 	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;
-
-		if (bufname != NULL)
-			cdata->bufname = xstrdup(bufname);
-
-		error = server_set_stdin_callback(c, cmd_load_buffer_callback,
-		    cdata, &cause);
-		if (error != 0) {
-			cmdq_error(item, "-: %s", cause);
-			free(cause);
-			free(cdata);
-			return (CMD_RETURN_ERROR);
-		}
-		return (CMD_RETURN_WAIT);
-	}
-
-	file = server_client_get_path(c, path);
+	file_read(item->client, path, cmd_load_buffer_done, cdata);
 	free(path);
 
-	f = fopen(file, "rb");
-	if (f == NULL) {
-		cmdq_error(item, "%s: %s", file, strerror(errno));
-		goto error;
-	}
-
-	pdata = NULL;
-	psize = 0;
-	while ((ch = getc(f)) != EOF) {
-		/* Do not let the server die due to memory exhaustion. */
-		if ((new_pdata = realloc(pdata, psize + 2)) == NULL) {
-			cmdq_error(item, "realloc error: %s", strerror(errno));
-			goto error;
-		}
-		pdata = new_pdata;
-		pdata[psize++] = ch;
-	}
-	if (ferror(f)) {
-		cmdq_error(item, "%s: read error", file);
-		goto error;
-	}
-	if (pdata != NULL)
-		pdata[psize] = '\0';
-
-	fclose(f);
-	free(file);
-
-	if (paste_set(pdata, psize, bufname, &cause) != 0) {
-		cmdq_error(item, "%s", cause);
-		free(pdata);
-		free(cause);
-		return (CMD_RETURN_ERROR);
-	}
-
-	return (CMD_RETURN_NORMAL);
-
-error:
-	free(pdata);
-	if (f != NULL)
-		fclose(f);
-	free(file);
-	return (CMD_RETURN_ERROR);
-}
-
-static void
-cmd_load_buffer_callback(struct client *c, int closed, void *data)
-{
-	struct cmd_load_buffer_data	*cdata = data;
-	char				*pdata, *cause, *saved;
-	size_t				 psize;
-
-	if (!closed)
-		return;
-	c->stdin_callback = NULL;
-
-	server_client_unref(c);
-	if (c->flags & CLIENT_DEAD)
-		goto out;
-
-	psize = EVBUFFER_LENGTH(c->stdin_data);
-	if (psize == 0 || (pdata = malloc(psize + 1)) == NULL)
-		goto out;
-
-	memcpy(pdata, EVBUFFER_DATA(c->stdin_data), psize);
-	pdata[psize] = '\0';
-	evbuffer_drain(c->stdin_data, psize);
-
-	if (paste_set(pdata, psize, cdata->bufname, &cause) != 0) {
-		/* No context so can't use server_client_msg_error. */
-		if (~c->flags & CLIENT_UTF8) {
-			saved = cause;
-			cause = utf8_sanitize(saved);
-			free(saved);
-		}
-		evbuffer_add_printf(c->stderr_data, "%s", cause);
-		server_client_push_stderr(c);
-		free(pdata);
-		free(cause);
-	}
-out:
-	cdata->item->flags &= ~CMDQ_WAITING;
-
-	free(cdata->bufname);
-	free(cdata);
+	return (CMD_RETURN_WAIT);
 }

cmd-new-session.c

@@ -39,8 +39,8 @@ const struct cmd_entry cmd_new_session_entry = {
 	.name = "new-session",
 	.alias = "new",
 
-	.args = { "Ac:dDEF:n:Ps:t:x:y:", 0, -1 },
-	.usage = "[-AdDEP] [-c start-directory] [-F format] [-n window-name] "
+	.args = { "Ac:dDEF:n:Ps:t:x:Xy:", 0, -1 },
+	.usage = "[-AdDEPX] [-c start-directory] [-F format] [-n window-name] "
 		 "[-s session-name] " CMD_TARGET_SESSION_USAGE " [-x width] "
 		 "[-y height] [command]",
 
@@ -69,20 +69,17 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 	struct args		*args = self->args;
 	struct client		*c = item->client;
 	struct session		*s, *as, *groupwith;
-	struct window		*w;
 	struct environ		*env;
 	struct options		*oo;
 	struct termios		 tio, *tiop;
 	struct session_group	*sg;
-	const char		*errstr, *template, *group, *prefix;
-	const char		*path, *cmd, *tmp, *value;
-	char		       **argv, *cause, *cp, *newname, *cwd = NULL;
-	int			 detached, already_attached, idx, argc;
-	int			 is_control = 0;
-	u_int			 sx, sy, dsx = 80, dsy = 24;
-	struct environ_entry	*envent;
-	struct cmd_find_state	 fs;
+	const char		*errstr, *template, *group, *prefix, *tmp;
+	char			*cause, *cwd = NULL, *cp, *newname = NULL;
+	int			 detached, already_attached, is_control = 0;
+	u_int			 sx, sy, dsx, dsy;
+	struct spawn_context	 sc;
 	enum cmd_retval		 retval;
+	struct cmd_find_state    fs;
 
 	if (self->entry == &cmd_has_session_entry) {
 		/*
@@ -97,26 +94,31 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		return (CMD_RETURN_ERROR);
 	}
 
-	newname = NULL;
-	if (args_has(args, 's')) {
-		newname = format_single(item, args_get(args, 's'), c, NULL,
-		    NULL, NULL);
+	tmp = args_get(args, 's');
+	if (tmp != NULL) {
+		newname = format_single(item, tmp, c, NULL, NULL, NULL);
 		if (!session_check_name(newname)) {
 			cmdq_error(item, "bad session name: %s", newname);
-			goto error;
+			goto fail;
 		}
-		if ((as = session_find(newname)) != NULL) {
-			if (args_has(args, 'A')) {
-				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);
-			goto error;
+	}
+	if (args_has(args, 'A')) {
+		if (newname != NULL)
+			as = session_find(newname);
+		else
+			as = item->target.s;
+		if (as != NULL) {
+			retval = cmd_attach_session(item, as->name,
+			    args_has(args, 'D'), args_has(args, 'X'), 0, NULL,
+			    args_has(args, 'E'));
+			free(newname);
+			return (retval);
 		}
 	}
+	if (newname != NULL && session_find(newname) != NULL) {
+		cmdq_error(item, "duplicate session: %s", newname);
+		goto fail;
+	}
 
 	/* Is this going to be part of a session group? */
 	group = args_get(args, 't');
@@ -125,7 +127,7 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		if (groupwith == NULL) {
 			if (!session_check_name(group)) {
 				cmdq_error(item, "bad group name: %s", group);
-				goto error;
+				goto fail;
 			}
 			sg = session_group_find(group);
 		} else
@@ -173,7 +175,7 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		if (server_client_check_nested(item->client)) {
 			cmdq_error(item, "sessions should be nested with care, "
 			    "unset $TMUX to force");
-			return (CMD_RETURN_ERROR);
+			goto fail;
 		}
 		if (tcgetattr(c->tty.fd, &tio) != 0)
 			fatal("tcgetattr failed");
@@ -186,7 +188,7 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		if (server_client_open(c, &cause) != 0) {
 			cmdq_error(item, "open terminal failed: %s", cause);
 			free(cause);
-			goto error;
+			goto fail;
 		}
 	}
 
@@ -196,11 +198,13 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		if (strcmp(tmp, "-") == 0) {
 			if (c != NULL)
 				dsx = c->tty.sx;
+			else
+				dsx = 80;
 		} else {
 			dsx = strtonum(tmp, 1, USHRT_MAX, &errstr);
 			if (errstr != NULL) {
 				cmdq_error(item, "width %s", errstr);
-				goto error;
+				goto fail;
 			}
 		}
 	}
@@ -209,11 +213,13 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		if (strcmp(tmp, "-") == 0) {
 			if (c != NULL)
 				dsy = c->tty.sy;
+			else
+				dsy = 24;
 		} else {
 			dsy = strtonum(tmp, 1, USHRT_MAX, &errstr);
 			if (errstr != NULL) {
 				cmdq_error(item, "height %s", errstr);
-				goto error;
+				goto fail;
 			}
 		}
 	}
@@ -225,8 +231,8 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 		if (sy > 0 && options_get_number(global_s_options, "status"))
 			sy--;
 	} else {
-		value = options_get_string(global_s_options, "default-size");
-		if (sscanf(value, "%ux%u", &sx, &sy) != 2) {
+		tmp = options_get_string(global_s_options, "default-size");
+		if (sscanf(tmp, "%ux%u", &sx, &sy) != 2) {
 			sx = 80;
 			sy = 24;
 		}
@@ -240,59 +246,40 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 	if (sy == 0)
 		sy = 1;
 
-	/* Figure out the command for the new window. */
-	argc = -1;
-	argv = NULL;
-	if (!args_has(args, 't') && args->argc != 0) {
-		argc = args->argc;
-		argv = args->argv;
-	} else if (sg == NULL && groupwith == NULL) {
-		cmd = options_get_string(global_s_options, "default-command");
-		if (cmd != NULL && *cmd != '\0') {
-			argc = 1;
-			argv = (char **)&cmd;
-		} else {
-			argc = 0;
-			argv = NULL;
-		}
+	/* Create the new session. */
+	oo = options_create(global_s_options);
+	if (args_has(args, 'x') || args_has(args, 'y')) {
+		if (!args_has(args, 'x'))
+			dsx = sx;
+		if (!args_has(args, 'y'))
+			dsy = sy;
+		options_set_string(oo, "default-size", 0, "%ux%u", dsx, dsy);
 	}
-
-	path = NULL;
-	if (c != NULL && c->session == NULL)
-		envent = environ_find(c->environ, "PATH");
-	else
-		envent = environ_find(global_environ, "PATH");
-	if (envent != NULL)
-		path = envent->value;
-
-	/* Construct the environment. */
 	env = environ_create();
 	if (c != NULL && !args_has(args, 'E'))
 		environ_update(global_s_options, c->environ, env);
+	s = session_create(prefix, newname, cwd, env, oo, tiop);
 
-	/* 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);
+	/* Spawn the initial window. */
+	memset(&sc, 0, sizeof sc);
+	sc.item = item;
+	sc.s = s;
+	sc.c = c;
 
-	/* Create the new session. */
-	idx = -1 - options_get_number(global_s_options, "base-index");
-	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);
+	sc.name = args_get(args, 'n');
+	sc.argc = args->argc;
+	sc.argv = args->argv;
+
+	sc.idx = -1;
+	sc.cwd = args_get(args, 'c');
+
+	sc.flags = 0;
+
+	if (spawn_window(&sc, &cause) == NULL) {
+		session_destroy(s, 0, __func__);
+		cmdq_error(item, "create window failed: %s", cause);
 		free(cause);
-		goto error;
-	}
-
-	/* Set the initial window name if one given. */
-	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, cp);
-		options_set_number(w->options, "automatic-rename", 0);
-		free(cp);
+		goto fail;
 	}
 
 	/*
@@ -347,7 +334,7 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(args, 'P')) {
 		if ((template = args_get(args, 'F')) == NULL)
 			template = NEW_SESSION_TEMPLATE;
-		cp = format_single(item, template, c, s, NULL, NULL);
+		cp = format_single(item, template, c, s, s->curw, NULL);
 		cmdq_print(item, "%s", cp);
 		free(cp);
 	}
@@ -358,13 +345,13 @@ cmd_new_session_exec(struct cmd *self, struct cmdq_item *item)
 	}
 
 	cmd_find_from_session(&fs, s, 0);
-	hooks_insert(s->hooks, item, &fs, "after-new-session");
+	cmdq_insert_hook(s, item, &fs, "after-new-session");
 
 	free(cwd);
 	free(newname);
 	return (CMD_RETURN_NORMAL);
 
-error:
+fail:
 	free(cwd);
 	free(newname);
 	return (CMD_RETURN_ERROR);

cmd-new-window.c

@@ -38,9 +38,9 @@ const struct cmd_entry cmd_new_window_entry = {
 	.name = "new-window",
 	.alias = "neww",
 
-	.args = { "ac:dF:kn:Pt:", 0, -1 },
-	.usage = "[-adkP] [-c start-directory] [-F format] [-n window-name] "
-		 CMD_TARGET_WINDOW_USAGE " [command]",
+	.args = { "ac:de:F:kn:Pt:", 0, -1 },
+	.usage = "[-adkP] [-c start-directory] [-e environment] [-F format] "
+		 "[-n window-name] " CMD_TARGET_WINDOW_USAGE " [command]",
 
 	.target = { 't', CMD_FIND_WINDOW, CMD_FIND_WINDOW_INDEX },
 
@@ -53,87 +53,54 @@ cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
 	struct cmd_find_state	*current = &item->shared->current;
+	struct spawn_context	 sc;
+	struct client		*c = cmd_find_client(item, NULL, 1);
 	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 winlink		*new_wl;
+	char			*cause = NULL, *cp;
+	const char		*template, *add;
 	struct cmd_find_state	 fs;
+	struct args_value	*value;
 
-	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);
-		}
-	}
-	detached = args_has(args, 'd');
-
-	if (args->argc == 0) {
-		cmd = options_get_string(s->options, "default-command");
-		if (cmd != NULL && *cmd != '\0') {
-			argc = 1;
-			argv = (char **)&cmd;
-		} else {
-			argc = 0;
-			argv = NULL;
-		}
-	} else {
-		argc = args->argc;
-		argv = args->argv;
+	if (args_has(args, 'a') && (idx = winlink_shuffle_up(s, wl)) == -1) {
+		cmdq_error(item, "couldn't get a window index");
+		return (CMD_RETURN_ERROR);
 	}
 
-	path = NULL;
-	if (item->client != NULL && item->client->session == NULL)
-		envent = environ_find(item->client->environ, "PATH");
-	else
-		envent = environ_find(s->environ, "PATH");
-	if (envent != NULL)
-		path = envent->value;
+	memset(&sc, 0, sizeof sc);
+	sc.item = item;
+	sc.s = s;
+	sc.c = c;
 
-	if ((tmp = args_get(args, 'c')) != NULL)
-		cwd = format_single(item, tmp, c, s, NULL, NULL);
-	else
-		cwd = xstrdup(server_client_get_cwd(item->client, s));
+	sc.name = args_get(args, 'n');
+	sc.argc = args->argc;
+	sc.argv = args->argv;
+	sc.environ = environ_create();
 
-	if ((tmp = args_get(args, 'n')) != NULL)
-		name = format_single(item, tmp, c, s, NULL, NULL);
-	else
-		name = NULL;
-
-	if (idx != -1)
-		wl = winlink_find_by_index(&s->windows, idx);
-	if (wl != NULL && args_has(args, 'k')) {
-		/*
-		 * Can't use session_detach as it will destroy session if this
-		 * makes it empty.
-		 */
-		notify_session_window("window-unlinked", s, wl->window);
-		wl->flags &= ~WINLINK_ALERTFLAGS;
-		winlink_stack_remove(&s->lastw, wl);
-		winlink_remove(&s->windows, wl);
-
-		/* Force select/redraw if current. */
-		if (wl == s->curw) {
-			detached = 0;
-			s->curw = NULL;
-		}
+	add = args_first_value(args, 'e', &value);
+	while (add != NULL) {
+		environ_put(sc.environ, add);
+		add = args_next_value(&value);
 	}
 
-	if (idx == -1)
-		idx = -1 - options_get_number(s->options, "base-index");
-	wl = session_new(s, name, argc, argv, path, cwd, idx,
-		&cause);
-	if (wl == NULL) {
+	sc.idx = idx;
+	sc.cwd = args_get(args, 'c');
+
+	sc.flags = 0;
+	if (args_has(args, 'd'))
+		sc.flags |= SPAWN_DETACHED;
+	if (args_has(args, 'k'))
+		sc.flags |= SPAWN_KILL;
+
+	if ((new_wl = spawn_window(&sc, &cause)) == NULL) {
 		cmdq_error(item, "create window failed: %s", cause);
 		free(cause);
-		goto error;
+		return (CMD_RETURN_ERROR);
 	}
-	if (!detached) {
-		session_select(s, wl->idx);
-		cmd_find_from_winlink(current, wl, 0);
+	if (!args_has(args, 'd') || new_wl == s->curw) {
+		cmd_find_from_winlink(current, new_wl, 0);
 		server_redraw_session_group(s);
 	} else
 		server_status_session_group(s);
@@ -141,20 +108,15 @@ cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
 	if (args_has(args, 'P')) {
 		if ((template = args_get(args, 'F')) == NULL)
 			template = NEW_WINDOW_TEMPLATE;
-		cp = format_single(item, template, c, s, wl, NULL);
+		cp = format_single(item, template, c, s, new_wl,
+		    new_wl->window->active);
 		cmdq_print(item, "%s", cp);
 		free(cp);
 	}
 
-	cmd_find_from_winlink(&fs, wl, 0);
-	hooks_insert(s->hooks, item, &fs, "after-new-window");
+	cmd_find_from_winlink(&fs, new_wl, 0);
+	cmdq_insert_hook(s, item, &fs, "after-new-window");
 
-	free(name);
-	free(cwd);
+	environ_free(sc.environ);
 	return (CMD_RETURN_NORMAL);
-
-error:
-	free(name);
-	free(cwd);
-	return (CMD_RETURN_ERROR);
 }

cmd-queue.c

@@ -32,11 +32,14 @@ static struct cmdq_list global_queue = TAILQ_HEAD_INITIALIZER(global_queue);
 static const char *
 cmdq_name(struct client *c)
 {
-	static char	s[32];
+	static char	s[256];
 
 	if (c == NULL)
 		return ("<global>");
-	xsnprintf(s, sizeof s, "<%p>", c);
+	if (c->name != NULL)
+		xsnprintf(s, sizeof s, "<%s>", c->name);
+	else
+		xsnprintf(s, sizeof s, "<%p>", c);
 	return (s);
 }
 
@@ -50,7 +53,7 @@ cmdq_get(struct client *c)
 }
 
 /* Append an item. */
-void
+struct cmdq_item *
 cmdq_append(struct client *c, struct cmdq_item *item)
 {
 	struct cmdq_list	*queue = cmdq_get(c);
@@ -66,13 +69,15 @@ cmdq_append(struct client *c, struct cmdq_item *item)
 
 		item->queue = queue;
 		TAILQ_INSERT_TAIL(queue, item, entry);
+		log_debug("%s %s: %s", __func__, cmdq_name(c), item->name);
 
 		item = next;
 	} while (item != NULL);
+	return (TAILQ_LAST(queue, cmdq_list));
 }
 
 /* Insert an item. */
-void
+struct cmdq_item *
 cmdq_insert_after(struct cmdq_item *after, struct cmdq_item *item)
 {
 	struct client		*c = after->client;
@@ -81,21 +86,81 @@ cmdq_insert_after(struct cmdq_item *after, struct cmdq_item *item)
 
 	do {
 		next = item->next;
-		item->next = NULL;
+		item->next = after->next;
+		after->next = item;
 
 		if (c != NULL)
 			c->references++;
 		item->client = c;
 
 		item->queue = queue;
-		if (after->next != NULL)
-			TAILQ_INSERT_AFTER(queue, after->next, item, entry);
-		else
-			TAILQ_INSERT_AFTER(queue, after, item, entry);
-		after->next = item;
+		TAILQ_INSERT_AFTER(queue, after, item, entry);
+		log_debug("%s %s: %s after %s", __func__, cmdq_name(c),
+		    item->name, after->name);
 
+		after = item;
 		item = next;
 	} while (item != NULL);
+	return (after);
+}
+
+/* Insert a hook. */
+void
+cmdq_insert_hook(struct session *s, struct cmdq_item *item,
+    struct cmd_find_state *fs, const char *fmt, ...)
+{
+	struct options			*oo;
+	va_list				 ap;
+	char				*name;
+	struct cmdq_item		*new_item;
+	struct options_entry		*o;
+	struct options_array_item	*a;
+	struct cmd_list			*cmdlist;
+
+	if (item->flags & CMDQ_NOHOOKS)
+		return;
+	if (s == NULL)
+		oo = global_s_options;
+	else
+		oo = s->options;
+
+	va_start(ap, fmt);
+	xvasprintf(&name, fmt, ap);
+	va_end(ap);
+
+	o = options_get(oo, name);
+	if (o == NULL) {
+		free(name);
+		return;
+	}
+	log_debug("running hook %s (parent %p)", name, item);
+
+	a = options_array_first(o);
+	while (a != NULL) {
+		cmdlist = options_array_item_value(a)->cmdlist;
+		if (cmdlist == NULL) {
+			a = options_array_next(a);
+			continue;
+		}
+
+		new_item = cmdq_get_command(cmdlist, fs, NULL, CMDQ_NOHOOKS);
+		cmdq_format(new_item, "hook", "%s", name);
+		if (item != NULL)
+			item = cmdq_insert_after(item, new_item);
+		else
+			item = cmdq_append(NULL, new_item);
+
+		a = options_array_next(a);
+	}
+
+	free(name);
+}
+
+/* Continue processing command queue. */
+void
+cmdq_continue(struct cmdq_item *item)
+{
+	item->flags &= ~CMDQ_WAITING;
 }
 
 /* Remove an item. */
@@ -111,30 +176,23 @@ cmdq_remove(struct cmdq_item *item)
 	if (item->client != NULL)
 		server_client_unref(item->client);
 
-	if (item->type == CMDQ_COMMAND)
+	if (item->cmdlist != NULL)
 		cmd_list_free(item->cmdlist);
 
 	TAILQ_REMOVE(item->queue, item, entry);
 
-	free((void *)item->name);
+	free(item->name);
 	free(item);
 }
 
-/* Set command group. */
-static u_int
-cmdq_next_group(void)
-{
-	static u_int	group;
-
-	return (++group);
-}
-
 /* Remove all subsequent items that match this item's group. */
 static void
 cmdq_remove_group(struct cmdq_item *item)
 {
 	struct cmdq_item	*this, *next;
 
+	if (item->group == 0)
+		return;
 	this = TAILQ_NEXT(item, entry);
 	while (this != NULL) {
 		next = TAILQ_NEXT(this, entry);
@@ -151,32 +209,34 @@ cmdq_get_command(struct cmd_list *cmdlist, struct cmd_find_state *current,
 {
 	struct cmdq_item	*item, *first = NULL, *last = NULL;
 	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);
+	struct cmdq_shared	*shared = NULL;
+	u_int			 group = 0;
 
 	TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
-		xasprintf(&tmp, "command[%s]", cmd->entry->name);
+		if (cmd->group != group) {
+			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);
+			group = cmd->group;
+		}
 
 		item = xcalloc(1, sizeof *item);
-		item->name = tmp;
+		xasprintf(&item->name, "[%s/%p]", cmd->entry->name, item);
 		item->type = CMDQ_COMMAND;
 
-		item->group = group;
+		item->group = cmd->group;
 		item->flags = flags;
 
 		item->shared = shared;
 		item->cmdlist = cmdlist;
 		item->cmd = cmd;
 
+		log_debug("%s: %s group %u", __func__, item->name, item->group);
+
 		shared->references++;
 		cmdlist->references++;
 
@@ -214,13 +274,22 @@ static enum cmd_retval
 cmdq_fire_command(struct cmdq_item *item)
 {
 	struct client		*c = item->client;
+	const char		*name = cmdq_name(c);
+	struct cmdq_shared	*shared = item->shared;
 	struct cmd		*cmd = item->cmd;
 	const struct cmd_entry	*entry = cmd->entry;
 	enum cmd_retval		 retval;
 	struct cmd_find_state	*fsp, fs;
 	int			 flags;
+	char			*tmp;
 
-	flags = !!(cmd->flags & CMD_CONTROL);
+	if (log_get_level() > 1) {
+		tmp = cmd_print(cmd);
+		log_debug("%s %s: (%u) %s", __func__, name, item->group, tmp);
+		free(tmp);
+	}
+
+	flags = !!(shared->flags & CMDQ_SHARED_CONTROL);
 	cmdq_guard(item, "begin", flags);
 
 	if (item->client == NULL)
@@ -245,7 +314,7 @@ cmdq_fire_command(struct cmdq_item *item)
 			fsp = &fs;
 		else
 			goto out;
-		hooks_insert(fsp->s->hooks, item, fsp, "after-%s", entry->name);
+		cmdq_insert_hook(fsp->s, item, fsp, "after-%s", entry->name);
 	}
 
 out:
@@ -262,12 +331,9 @@ struct cmdq_item *
 cmdq_get_callback1(const char *name, cmdq_cb cb, void *data)
 {
 	struct cmdq_item	*item;
-	char			*tmp;
-
-	xasprintf(&tmp, "callback[%s]", name);
 
 	item = xcalloc(1, sizeof *item);
-	item->name = tmp;
+	xasprintf(&item->name, "[%s/%p]", name, item);
 	item->type = CMDQ_CALLBACK;
 
 	item->group = 0;
@@ -279,6 +345,25 @@ cmdq_get_callback1(const char *name, cmdq_cb cb, void *data)
 	return (item);
 }
 
+/* Generic error callback. */
+static enum cmd_retval
+cmdq_error_callback(struct cmdq_item *item, void *data)
+{
+	char	*error = data;
+
+	cmdq_error(item, "%s", error);
+	free(error);
+
+	return (CMD_RETURN_NORMAL);
+}
+
+/* Get an error callback for the command queue. */
+struct cmdq_item *
+cmdq_get_error(const char *error)
+{
+	return (cmdq_get_callback(cmdq_error_callback, xstrdup(error)));
+}
+
 /* Fire callback on callback queue. */
 static enum cmd_retval
 cmdq_fire_callback(struct cmdq_item *item)
@@ -391,13 +476,11 @@ void
 cmdq_guard(struct cmdq_item *item, const char *guard, int flags)
 {
 	struct client	*c = item->client;
+	long		 t = item->time;
+	u_int		 number = item->number;
 
-	if (c == NULL || !(c->flags & CLIENT_CONTROL))
-		return;
-
-	evbuffer_add_printf(c->stdout_data, "%%%s %ld %u %d\n", guard,
-	    (long)item->time, item->number, flags);
-	server_client_push_stdout(c);
+	if (c != NULL && (c->flags & CLIENT_CONTROL))
+		file_print(c, "%%%s %ld %u %d\n", guard, t, number, flags);
 }
 
 /* Show message from command. */
@@ -411,29 +494,29 @@ cmdq_print(struct cmdq_item *item, const char *fmt, ...)
 	char				*tmp, *msg;
 
 	va_start(ap, fmt);
+	xvasprintf(&msg, fmt, ap);
+	va_end(ap);
+
+	log_debug("%s: %s", __func__, msg);
 
 	if (c == NULL)
 		/* nothing */;
 	else if (c->session == NULL || (c->flags & CLIENT_CONTROL)) {
 		if (~c->flags & CLIENT_UTF8) {
-			xvasprintf(&tmp, fmt, ap);
+			tmp = msg;
 			msg = utf8_sanitize(tmp);
 			free(tmp);
-			evbuffer_add(c->stdout_data, msg, strlen(msg));
-			free(msg);
-		} else
-			evbuffer_add_vprintf(c->stdout_data, fmt, ap);
-		evbuffer_add(c->stdout_data, "\n", 1);
-		server_client_push_stdout(c);
+		}
+		file_print(c, "%s\n", msg);
 	} else {
 		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);
+		window_copy_add(wp, "%s", msg);
 	}
 
-	va_end(ap);
+	free(msg);
 }
 
 /* Show error from command. */
@@ -444,11 +527,10 @@ cmdq_error(struct cmdq_item *item, const char *fmt, ...)
 	struct cmd	*cmd = item->cmd;
 	va_list		 ap;
 	char		*msg;
-	size_t		 msglen;
 	char		*tmp;
 
 	va_start(ap, fmt);
-	msglen = xvasprintf(&msg, fmt, ap);
+	xvasprintf(&msg, fmt, ap);
 	va_end(ap);
 
 	log_debug("%s: %s", __func__, msg);
@@ -460,11 +542,11 @@ cmdq_error(struct cmdq_item *item, const char *fmt, ...)
 			tmp = msg;
 			msg = utf8_sanitize(tmp);
 			free(tmp);
-			msglen = strlen(msg);
 		}
-		evbuffer_add(c->stderr_data, msg, msglen);
-		evbuffer_add(c->stderr_data, "\n", 1);
-		server_client_push_stderr(c);
+		if (c->flags & CLIENT_CONTROL)
+			file_print(c, "%s\n", msg);
+		else
+			file_error(c, "%s\n", msg);
 		c->retval = 1;
 	} else {
 		*msg = toupper((u_char) *msg);

cmd-refresh-client.c

@@ -19,6 +19,7 @@
 #include <sys/types.h>
 
 #include <stdlib.h>
+#include <string.h>
 
 #include "tmux.h"
 
@@ -33,8 +34,9 @@ const struct cmd_entry cmd_refresh_client_entry = {
 	.name = "refresh-client",
 	.alias = "refresh",
 
-	.args = { "cC:DlLRSt:U", 0, 1 },
-	.usage = "[-cDlLRSU] [-C size] " CMD_TARGET_CLIENT_USAGE " [adjustment]",
+	.args = { "cC:DF:lLRSt:U", 0, 1 },
+	.usage = "[-cDlLRSU] [-C XxY] [-F flags] " CMD_TARGET_CLIENT_USAGE
+		" [adjustment]",
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_refresh_client_exec
@@ -48,6 +50,7 @@ cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
 	struct tty	*tty;
 	struct window	*w;
 	const char	*size, *errstr;
+	char		*copy, *next, *s;
 	u_int		 x, y, adjust;
 
 	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
@@ -107,28 +110,43 @@ cmd_refresh_client_exec(struct cmd *self, struct cmdq_item *item)
 	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);
+		return (CMD_RETURN_NORMAL);
+	}
+
+	if (args_has(args, 'C') || args_has(args, 'F')) {
+		if (args_has(args, 'C')) {
+			if (!(c->flags & CLIENT_CONTROL)) {
+				cmdq_error(item, "not a control client");
+				return (CMD_RETURN_ERROR);
+			}
+			size = args_get(args, 'C');
+			if (sscanf(size, "%u,%u", &x, &y) != 2 &&
+			    sscanf(size, "%ux%u", &x, &y) != 2) {
+				cmdq_error(item, "bad size argument");
+				return (CMD_RETURN_ERROR);
+			}
+			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);
+			}
+			tty_set_size(&c->tty, x, y, 0, 0);
+			c->flags |= CLIENT_SIZECHANGED;
+			recalculate_sizes();
 		}
-		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 (args_has(args, 'F')) {
+			if (!(c->flags & CLIENT_CONTROL)) {
+				cmdq_error(item, "not a control client");
+				return (CMD_RETURN_ERROR);
+			}
+			s = copy = xstrdup(args_get(args, 'F'));
+			while ((next = strsep(&s, ",")) != NULL) {
+				/* Unknown flags are ignored. */
+				if (strcmp(next, "no-output") == 0)
+					c->flags |= CLIENT_CONTROL_NOOUTPUT;
+			}
+			free(copy);
 		}
-		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);
-		}
-		if (!(c->flags & CLIENT_CONTROL)) {
-			cmdq_error(item, "not a control client");
-			return (CMD_RETURN_ERROR);
-		}
-		tty_set_size(&c->tty, x, y);
-		c->flags |= CLIENT_SIZECHANGED;
-		recalculate_sizes();
 		return (CMD_RETURN_NORMAL);
 	}
 

cmd-resize-pane.c

@@ -19,6 +19,7 @@
 #include <sys/types.h>
 
 #include <stdlib.h>
+#include <string.h>
 
 #include "tmux.h"
 
@@ -55,10 +56,11 @@ cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
 	struct window		*w = wl->window;
 	struct client		*c = item->client;
 	struct session		*s = item->target.s;
-	const char	       	*errstr;
-	char			*cause;
+	const char	       	*errstr, *p;
+	char			*cause, *copy;
 	u_int			 adjust;
-	int			 x, y;
+	int			 x, y, percentage;
+	size_t			 plen;
 
 	if (args_has(args, 'M')) {
 		if (cmd_mouse_window(&shared->mouse, &s) == NULL)
@@ -91,21 +93,58 @@ cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
 		}
 	}
 
-	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);
-			return (CMD_RETURN_ERROR);
+	if ((p = args_get(args, 'x')) != NULL) {
+		plen = strlen(p);
+		if (p[plen - 1] == '%') {
+			copy = xstrdup(p);
+			copy[plen - 1] = '\0';
+			percentage = strtonum(copy, 0, INT_MAX, &errstr);
+			free(copy);
+			if (errstr != NULL) {
+				cmdq_error(item, "width %s", errstr);
+				return (CMD_RETURN_ERROR);
+			}
+			x = (w->sx * percentage) / 100;
+			if (x < PANE_MINIMUM)
+				x = PANE_MINIMUM;
+			if (x > INT_MAX)
+				x = INT_MAX;
+		} else {
+			x = args_strtonum(args, 'x', PANE_MINIMUM, INT_MAX,
+			    &cause);
+			if (cause != NULL) {
+				cmdq_error(item, "width %s", cause);
+				free(cause);
+				return (CMD_RETURN_ERROR);
+			}
 		}
 		layout_resize_pane_to(wp, LAYOUT_LEFTRIGHT, x);
 	}
-	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);
-			return (CMD_RETURN_ERROR);
+	if ((p = args_get(args, 'y')) != NULL) {
+		plen = strlen(p);
+		if (p[plen - 1] == '%') {
+			copy = xstrdup(p);
+			copy[plen - 1] = '\0';
+			percentage = strtonum(copy, 0, INT_MAX, &errstr);
+			free(copy);
+			if (errstr != NULL) {
+				cmdq_error(item, "height %s", errstr);
+				return (CMD_RETURN_ERROR);
+			}
+			y = (w->sy * percentage) / 100;
+			if (y < PANE_MINIMUM)
+				y = PANE_MINIMUM;
+			if (y > INT_MAX)
+				y = INT_MAX;
+		}
+		else {
+			y = args_strtonum(args, 'y', PANE_MINIMUM, INT_MAX,
+			    &cause);
+			if (cause != NULL) {
+				cmdq_error(item, "height %s", cause);
+				free(cause);
+				return (CMD_RETURN_ERROR);
+			}
 		}
 		layout_resize_pane_to(wp, LAYOUT_TOPBOTTOM, y);
 	}
@@ -143,14 +182,14 @@ cmd_resize_pane_mouse_update(struct client *c, struct mouse_event *m)
 	}
 	w = wl->window;
 
-	y = m->y; x = m->x;
-	if (m->statusat == 0 && y > 0)
-		y--;
+	y = m->y + m->oy; x = m->x + m->ox;
+	if (m->statusat == 0 && y >= m->statuslines)
+		y -= m->statuslines;
 	else if (m->statusat > 0 && y >= (u_int)m->statusat)
 		y = m->statusat - 1;
-	ly = m->ly; lx = m->lx;
-	if (m->statusat == 0 && ly > 0)
-		ly--;
+	ly = m->ly + m->oy; lx = m->lx + m->ox;
+	if (m->statusat == 0 && ly >= m->statuslines)
+		ly -= m->statuslines;
 	else if (m->statusat > 0 && ly >= (u_int)m->statusat)
 		ly = m->statusat - 1;
 

cmd-resize-window.c

@@ -53,6 +53,7 @@ cmd_resize_window_exec(struct cmd *self, struct cmdq_item *item)
 	const char	       	*errstr;
 	char			*cause;
 	u_int			 adjust, sx, sy;
+	int			 xpixel = -1, ypixel = -1;
 
 	if (args->argc == 0)
 		adjust = 1;
@@ -97,13 +98,16 @@ cmd_resize_window_exec(struct cmd *self, struct cmdq_item *item)
 	} 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);
+	if (args_has(args, 'A')) {
+		default_window_size(NULL, s, w, &sx, &sy, &xpixel, &ypixel,
+		    WINDOW_SIZE_LARGEST);
+	} else if (args_has(args, 'a')) {
+		default_window_size(NULL, s, w, &sx, &sy, &xpixel, &ypixel,
+		    WINDOW_SIZE_SMALLEST);
+	}
 
 	options_set_number(w->options, "window-size", WINDOW_SIZE_MANUAL);
-	resize_window(w, sx, sy);
+	resize_window(w, sx, sy, xpixel, ypixel);
 
 	return (CMD_RETURN_NORMAL);
 }

cmd-respawn-pane.c

@@ -20,7 +20,7 @@
 #include <sys/types.h>
 
 #include <stdlib.h>
-#include <unistd.h>
+#include <string.h>
 
 #include "tmux.h"
 
@@ -34,9 +34,9 @@ const struct cmd_entry cmd_respawn_pane_entry = {
 	.name = "respawn-pane",
 	.alias = "respawnp",
 
-	.args = { "c:kt:", 0, -1 },
-	.usage = "[-c start-directory] [-k] " CMD_TARGET_PANE_USAGE
-	         " [command]",
+	.args = { "c:e:kt:", 0, -1 },
+	.usage = "[-k] [-c start-directory] [-e environment] "
+		 CMD_TARGET_PANE_USAGE " [command]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -48,53 +48,49 @@ static enum cmd_retval
 cmd_respawn_pane_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 window_pane	*wp = item->target.wp;
-	struct client           *c = cmd_find_client(item, NULL, 1);
+	struct spawn_context	 sc;
 	struct session		*s = item->target.s;
-	struct environ		*env;
-	const char		*path = NULL, *cp;
-	char			*cause, *cwd = NULL;
-	u_int			 idx;
-	struct environ_entry	*envent;
+	struct winlink		*wl = item->target.wl;
+	struct window_pane	*wp = item->target.wp;
+	char			*cause = NULL;
+	const char		*add;
+	struct args_value	*value;
 
-	if (!args_has(self->args, 'k') && wp->fd != -1) {
-		if (window_pane_index(wp, &idx) != 0)
-			fatalx("index not found");
-		cmdq_error(item, "pane still active: %s:%d.%u",
-		    s->name, wl->idx, idx);
-		return (CMD_RETURN_ERROR);
+	memset(&sc, 0, sizeof sc);
+	sc.item = item;
+	sc.s = s;
+	sc.wl = wl;
+
+	sc.wp0 = wp;
+	sc.lc = NULL;
+
+	sc.name = NULL;
+	sc.argc = args->argc;
+	sc.argv = args->argv;
+	sc.environ = environ_create();
+
+	add = args_first_value(args, 'e', &value);
+	while (add != NULL) {
+		environ_put(sc.environ, add);
+		add = args_next_value(&value);
 	}
 
-	window_pane_reset_mode_all(wp);
-	screen_reinit(&wp->base);
-	input_init(wp);
+	sc.idx = -1;
+	sc.cwd = args_get(args, 'c');
 
-	if (item->client != NULL && item->client->session == NULL)
-		envent = environ_find(item->client->environ, "PATH");
-	else
-		envent = environ_find(s->environ, "PATH");
-	if (envent != NULL)
-		path = envent->value;
+	sc.flags = SPAWN_RESPAWN;
+	if (args_has(args, 'k'))
+		sc.flags |= SPAWN_KILL;
 
-	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) {
+	if (spawn_pane(&sc, &cause) == NULL) {
 		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);
+	server_status_window(wp->window);
 
+	environ_free(sc.environ);
 	return (CMD_RETURN_NORMAL);
 }

cmd-respawn-window.c

@@ -19,7 +19,7 @@
 #include <sys/types.h>
 
 #include <stdlib.h>
-#include <unistd.h>
+#include <string.h>
 
 #include "tmux.h"
 
@@ -34,9 +34,9 @@ const struct cmd_entry cmd_respawn_window_entry = {
 	.name = "respawn-window",
 	.alias = "respawnw",
 
-	.args = { "c:kt:", 0, -1 },
-	.usage = "[-c start-directory] [-k] " CMD_TARGET_WINDOW_USAGE
-	         " [command]",
+	.args = { "c:e:kt:", 0, -1 },
+	.usage = "[-k] [-c start-directory] [-e environment] "
+		 CMD_TARGET_WINDOW_USAGE " [command]",
 
 	.target = { 't', CMD_FIND_WINDOW, 0 },
 
@@ -48,64 +48,45 @@ static enum cmd_retval
 cmd_respawn_window_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = self->args;
+	struct spawn_context	 sc;
 	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 = NULL, *cp;
-	char		 	*cause, *cwd = NULL;
-	struct environ_entry	*envent;
+	char			*cause = NULL;
+	const char		*add;
+	struct args_value	*value;
 
-	if (!args_has(self->args, 'k')) {
-		TAILQ_FOREACH(wp, &w->panes, entry) {
-			if (wp->fd == -1)
-				continue;
-			cmdq_error(item, "window still active: %s:%d", s->name,
-			    wl->idx);
-			return (CMD_RETURN_ERROR);
-		}
+	memset(&sc, 0, sizeof sc);
+	sc.item = item;
+	sc.s = s;
+	sc.wl = wl;
+	sc.c = cmd_find_client(item, NULL, 1);
+
+	sc.name = NULL;
+	sc.argc = args->argc;
+	sc.argv = args->argv;
+	sc.environ = environ_create();
+
+	add = args_first_value(args, 'e', &value);
+	while (add != NULL) {
+		environ_put(sc.environ, add);
+		add = args_next_value(&value);
 	}
 
-	wp = TAILQ_FIRST(&w->panes);
-	TAILQ_REMOVE(&w->panes, wp, entry);
-	layout_free(w);
-	window_destroy_panes(w);
-	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
-	window_pane_resize(wp, w->sx, w->sy);
+	sc.idx = -1;
+	sc.cwd = args_get(args, 'c');
 
-	if (item->client != NULL && item->client->session == NULL)
-		envent = environ_find(item->client->environ, "PATH");
-	else
-		envent = environ_find(s->environ, "PATH");
-	if (envent != NULL)
-		path = envent->value;
+	sc.flags = SPAWN_RESPAWN;
+	if (args_has(args, 'k'))
+		sc.flags |= SPAWN_KILL;
 
-	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) {
+	if (spawn_window(&sc, &cause) == NULL) {
 		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_all(wp);
-	screen_reinit(&wp->base);
-	input_init(wp);
-	window_set_active_pane(w, wp);
-
-	recalculate_sizes();
-	server_redraw_window(w);
+	server_redraw_window(wl->window);
 
+	environ_free(sc.environ);
 	return (CMD_RETURN_NORMAL);
 }

cmd-rotate-window.c

@@ -31,8 +31,8 @@ const struct cmd_entry cmd_rotate_window_entry = {
 	.name = "rotate-window",
 	.alias = "rotatew",
 
-	.args = { "Dt:U", 0, 0 },
-	.usage = "[-DU] " CMD_TARGET_WINDOW_USAGE,
+	.args = { "Dt:UZ", 0, 0 },
+	.usage = "[-DUZ] " CMD_TARGET_WINDOW_USAGE,
 
 	.target = { 't', CMD_FIND_WINDOW, 0 },
 
@@ -50,7 +50,7 @@ cmd_rotate_window_exec(struct cmd *self, struct cmdq_item *item)
 	struct layout_cell	*lc;
 	u_int			 sx, sy, xoff, yoff;
 
-	server_unzoom_window(w);
+	window_push_zoom(w, args_has(self->args, 'Z'));
 
 	if (args_has(self->args, 'D')) {
 		wp = TAILQ_LAST(&w->panes, window_panes);
@@ -77,9 +77,6 @@ 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);
 		TAILQ_REMOVE(&w->panes, wp, entry);
@@ -105,10 +102,12 @@ 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);
 	}
 
+	window_set_active_pane(w, wp, 1);
+	cmd_find_from_winlink_pane(current, wl, wp, 0);
+	window_pop_zoom(w);
+	server_redraw_window(w);
+
 	return (CMD_RETURN_NORMAL);
 }

cmd-run-shell.c

@@ -155,7 +155,7 @@ cmd_run_shell_callback(struct job *job)
 	free(msg);
 
 	if (cdata->item != NULL)
-		cdata->item->flags &= ~CMDQ_WAITING;
+		cmdq_continue(cdata->item);
 }
 
 static void

cmd-save-buffer.c

@@ -55,6 +55,20 @@ const struct cmd_entry cmd_show_buffer_entry = {
 	.exec = cmd_save_buffer_exec
 };
 
+static void
+cmd_save_buffer_done(__unused struct client *c, const char *path, int error,
+    __unused int closed, __unused struct evbuffer *buffer, void *data)
+{
+	struct cmdq_item	*item = data;
+
+	if (!closed)
+		return;
+
+	if (error != 0)
+		cmdq_error(item, "%s: %s", path, strerror(error));
+	cmdq_continue(item);
+}
+
 static enum cmd_retval
 cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
 {
@@ -64,18 +78,17 @@ cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
 	struct winlink		*wl = item->target.wl;
 	struct window_pane	*wp = item->target.wp;
 	struct paste_buffer	*pb;
-	const char		*bufname, *bufdata, *start, *end, *flags;
-	char			*msg, *path, *file;
-	size_t			 size, used, msglen, bufsize;
-	FILE			*f;
+	int			 flags;
+	const char		*bufname = args_get(args, 'b'), *bufdata;
+	size_t			 bufsize;
+	char			*path;
 
-	if (!args_has(args, 'b')) {
+	if (bufname == NULL) {
 		if ((pb = paste_get_top(NULL)) == NULL) {
 			cmdq_error(item, "no buffers");
 			return (CMD_RETURN_ERROR);
 		}
 	} else {
-		bufname = args_get(args, 'b');
 		pb = paste_get_name(bufname);
 		if (pb == NULL) {
 			cmdq_error(item, "no buffer %s", bufname);
@@ -88,74 +101,13 @@ cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
 		path = xstrdup("-");
 	else
 		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);
-		}
-		if (c->session == NULL || (c->flags & CLIENT_CONTROL))
-			goto do_stdout;
-		goto do_print;
-	}
-
-	flags = "wb";
 	if (args_has(self->args, 'a'))
-		flags = "ab";
-
-	file = server_client_get_path(c, path);
+		flags = O_APPEND;
+	else
+		flags = 0;
+	file_write(item->client, path, flags, bufdata, bufsize,
+	    cmd_save_buffer_done, item);
 	free(path);
 
-	f = fopen(file, flags);
-	if (f == NULL) {
-		cmdq_error(item, "%s: %s", file, strerror(errno));
-		free(file);
-		return (CMD_RETURN_ERROR);
-	}
-
-	if (fwrite(bufdata, 1, bufsize, f) != bufsize) {
-		cmdq_error(item, "%s: write error", file);
-		fclose(f);
-		free(file);
-		return (CMD_RETURN_ERROR);
-	}
-
-	fclose(f);
-	free(file);
-
-	return (CMD_RETURN_NORMAL);
-
-do_stdout:
-	evbuffer_add(c->stdout_data, bufdata, bufsize);
-	server_client_push_stdout(c);
-	return (CMD_RETURN_NORMAL);
-
-do_print:
-	if (bufsize > (INT_MAX / 4) - 1) {
-		cmdq_error(item, "buffer too big");
-		return (CMD_RETURN_ERROR);
-	}
-	msg = NULL;
-
-	used = 0;
-	while (used != bufsize) {
-		start = bufdata + used;
-		end = memchr(start, '\n', bufsize - used);
-		if (end != NULL)
-			size = end - start;
-		else
-			size = bufsize - used;
-
-		msglen = size * 4 + 1;
-		msg = xrealloc(msg, msglen);
-
-		strvisx(msg, start, size, VIS_OCTAL|VIS_TAB);
-		cmdq_print(item, "%s", msg);
-
-		used += size + (end != NULL);
-	}
-
-	free(msg);
-	return (CMD_RETURN_NORMAL);
+	return (CMD_RETURN_WAIT);
 }

cmd-select-pane.c

@@ -33,8 +33,8 @@ const struct cmd_entry cmd_select_pane_entry = {
 	.name = "select-pane",
 	.alias = "selectp",
 
-	.args = { "DdegLlMmP:RT:t:U", 0, 0 },
-	.usage = "[-DdegLlMmRU] [-P style] [-T title] " CMD_TARGET_PANE_USAGE,
+	.args = { "DdegLlMmP:RT:t:UZ", 0, 0 }, /* -P and -g deprecated */
+	.usage = "[-DdeLlMmRUZ] [-T title] " CMD_TARGET_PANE_USAGE,
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -46,8 +46,8 @@ const struct cmd_entry cmd_last_pane_entry = {
 	.name = "last-pane",
 	.alias = "lastp",
 
-	.args = { "det:", 0, 0 },
-	.usage = "[-de] " CMD_TARGET_WINDOW_USAGE,
+	.args = { "det:Z", 0, 0 },
+	.usage = "[-deZ] " CMD_TARGET_WINDOW_USAGE,
 
 	.target = { 't', CMD_FIND_WINDOW, 0 },
 
@@ -90,9 +90,10 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 	struct window		*w = wl->window;
 	struct session		*s = item->target.s;
 	struct window_pane	*wp = item->target.wp, *lastwp, *markedwp;
-	struct style		*sy = &wp->style;
 	char			*pane_title;
 	const char		*style;
+	struct style		*sy;
+	struct options_entry	*o;
 
 	if (self->entry == &cmd_last_pane_entry || args_has(args, 'l')) {
 		lastwp = w->last;
@@ -110,12 +111,15 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 		else if (args_has(self->args, 'd'))
 			lastwp->flags |= PANE_INPUTOFF;
 		else {
-			server_unzoom_window(w);
+			if (window_push_zoom(w, args_has(self->args, 'Z')))
+				server_redraw_window(w);
 			window_redraw_active_switch(w, lastwp);
-			if (window_set_active_pane(w, lastwp)) {
+			if (window_set_active_pane(w, lastwp, 1)) {
 				cmd_find_from_winlink(current, wl, 0);
 				cmd_select_pane_redraw(w);
 			}
+			if (window_pop_zoom(w))
+				server_redraw_window(w);
 		}
 		return (CMD_RETURN_NORMAL);
 	}
@@ -144,30 +148,39 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 
 	if (args_has(self->args, 'P') || args_has(self->args, 'g')) {
 		if ((style = args_get(args, 'P')) != NULL) {
-			style_set(sy, &grid_default_cell);
-			if (style_parse(sy, &grid_default_cell, style) == -1) {
+			o = options_set_style(wp->options, "window-style", 0,
+			    style);
+			if (o == NULL) {
 				cmdq_error(item, "bad style: %s", style);
 				return (CMD_RETURN_ERROR);
 			}
-			wp->flags |= PANE_REDRAW;
+			options_set_style(wp->options, "window-active-style", 0,
+			    style);
+			wp->flags |= (PANE_REDRAW|PANE_STYLECHANGED);
 		}
-		if (args_has(self->args, 'g'))
+		if (args_has(self->args, 'g')) {
+			sy = options_get_style(wp->options, "window-style");
 			cmdq_print(item, "%s", style_tostring(sy));
+		}
 		return (CMD_RETURN_NORMAL);
 	}
 
 	if (args_has(self->args, 'L')) {
-		server_unzoom_window(wp->window);
+		window_push_zoom(w, 1);
 		wp = window_pane_find_left(wp);
+		window_pop_zoom(w);
 	} else if (args_has(self->args, 'R')) {
-		server_unzoom_window(wp->window);
+		window_push_zoom(w, 1);
 		wp = window_pane_find_right(wp);
+		window_pop_zoom(w);
 	} else if (args_has(self->args, 'U')) {
-		server_unzoom_window(wp->window);
+		window_push_zoom(w, 1);
 		wp = window_pane_find_up(wp);
+		window_pop_zoom(w);
 	} else if (args_has(self->args, 'D')) {
-		server_unzoom_window(wp->window);
+		window_push_zoom(w, 1);
 		wp = window_pane_find_down(wp);
+		window_pop_zoom(w);
 	}
 	if (wp == NULL)
 		return (CMD_RETURN_NORMAL);
@@ -184,21 +197,24 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 	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);
+		if (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_push_zoom(w, args_has(self->args, 'Z')))
+		server_redraw_window(w);
 	window_redraw_active_switch(w, wp);
-	if (window_set_active_pane(w, wp)) {
+	if (window_set_active_pane(w, wp, 1)) {
 		cmd_find_from_winlink_pane(current, wl, wp, 0);
-		hooks_insert(s->hooks, item, current, "after-select-pane");
+		cmdq_insert_hook(s, item, current, "after-select-pane");
 		cmd_select_pane_redraw(w);
 	}
+	if (window_pop_zoom(w))
+		server_redraw_window(w);
 
 	return (CMD_RETURN_NORMAL);
 }

cmd-select-window.c

@@ -119,7 +119,7 @@ cmd_select_window_exec(struct cmd *self, struct cmdq_item *item)
 		}
 		cmd_find_from_session(current, s, 0);
 		server_redraw_session(s);
-		hooks_insert(s->hooks, item, current, "after-select-window");
+		cmdq_insert_hook(s, item, current, "after-select-window");
 	} else {
 		/*
 		 * If -T and select-window is invoked on same window as
@@ -137,7 +137,7 @@ cmd_select_window_exec(struct cmd *self, struct cmdq_item *item)
 			cmd_find_from_session(current, s, 0);
 			server_redraw_session(s);
 		}
-		hooks_insert(s->hooks, item, current, "after-select-window");
+		cmdq_insert_hook(s, item, current, "after-select-window");
 	}
 	recalculate_sizes();
 

cmd-send-keys.c

@@ -33,8 +33,9 @@ const struct cmd_entry cmd_send_keys_entry = {
 	.name = "send-keys",
 	.alias = "send",
 
-	.args = { "lXRMN:t:", 0, -1 },
-	.usage = "[-lXRM] [-N repeat-count] " CMD_TARGET_PANE_USAGE " key ...",
+	.args = { "FHlMN:Rt:X", 0, -1 },
+	.usage = "[-FHlMRX] [-N repeat-count] " CMD_TARGET_PANE_USAGE
+	         " key ...",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -55,31 +56,76 @@ const struct cmd_entry cmd_send_prefix_entry = {
 	.exec = cmd_send_keys_exec
 };
 
-static void
-cmd_send_keys_inject(struct client *c, struct cmdq_item *item, key_code key)
+static struct cmdq_item *
+cmd_send_keys_inject_key(struct client *c, struct cmd_find_state *fs,
+    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 session			*s = fs->s;
+	struct winlink			*wl = fs->wl;
+	struct window_pane		*wp = fs->wp;
 	struct window_mode_entry	*wme;
 	struct key_table		*table;
 	struct key_binding		*bd;
 
-	wme = TAILQ_FIRST(&wp->modes);
+	wme = TAILQ_FIRST(&fs->wp->modes);
 	if (wme == NULL || wme->mode->key_table == NULL) {
-		if (options_get_number(wp->window->options, "xterm-keys"))
+		if (options_get_number(fs->wp->window->options, "xterm-keys"))
 			key |= KEYC_XTERM;
-		window_pane_key(wp, NULL, s, wl, key, NULL);
-		return;
+		if (window_pane_key(wp, item->client, s, wl, key, NULL) != 0)
+			return (NULL);
+		return (item);
 	}
 	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);
+		item = key_bindings_dispatch(bd, item, c, NULL, &item->target);
 		key_bindings_unref_table(table);
 	}
+	return (item);
+}
+
+static struct cmdq_item *
+cmd_send_keys_inject_string(struct client *c, struct cmd_find_state *fs,
+    struct cmdq_item *item, struct args *args, int i)
+{
+	const char		*s = args->argv[i];
+	struct cmdq_item	*new_item;
+	struct utf8_data	*ud, *uc;
+	wchar_t			 wc;
+	key_code		 key;
+	char			*endptr;
+	long			 n;
+	int			 literal;
+
+	if (args_has(args, 'H')) {
+		n = strtol(s, &endptr, 16);
+		if (*s =='\0' || n < 0 || n > 0xff || *endptr != '\0')
+			return (item);
+		return (cmd_send_keys_inject_key(c, fs, item, KEYC_LITERAL|n));
+	}
+
+	literal = args_has(args, 'l');
+	if (!literal) {
+		key = key_string_lookup_string(s);
+		if (key != KEYC_NONE && key != KEYC_UNKNOWN) {
+			new_item = cmd_send_keys_inject_key(c, fs, item, key);
+			if (new_item != NULL)
+				return (new_item);
+		}
+		literal = 1;
+	}
+	if (literal) {
+		ud = utf8_fromcstr(s);
+		for (uc = ud; uc->size != 0; uc++) {
+			if (utf8_combine(uc, &wc) != UTF8_DONE)
+				continue;
+			item = cmd_send_keys_inject_key(c, fs, item, wc);
+		}
+		free(ud);
+	}
+	return (item);
 }
 
 static enum cmd_retval
@@ -87,14 +133,13 @@ cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args			*args = self->args;
 	struct client			*c = cmd_find_client(item, NULL, 1);
+	struct cmd_find_state		*fs = &item->target;
 	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;
+	int				 i;
 	key_code			 key;
 	u_int				 np = 1;
 	char				*cause = NULL;
@@ -132,7 +177,7 @@ 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, wl, m->key, m);
+		window_pane_key(wp, item->client, s, wl, m->key, m);
 		return (CMD_RETURN_NORMAL);
 	}
 
@@ -141,7 +186,7 @@ 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");
-		cmd_send_keys_inject(c, item, key);
+		cmd_send_keys_inject_key(c, fs, item, key);
 		return (CMD_RETURN_NORMAL);
 	}
 
@@ -151,26 +196,8 @@ cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 	}
 
 	for (; np != 0; np--) {
-		for (i = 0; i < args->argc; i++) {
-			literal = args_has(args, 'l');
-			if (!literal) {
-				key = key_string_lookup_string(args->argv[i]);
-				if (key != KEYC_NONE && key != KEYC_UNKNOWN)
-					cmd_send_keys_inject(c, item, key);
-				else
-					literal = 1;
-			}
-			if (literal) {
-				ud = utf8_fromcstr(args->argv[i]);
-				for (uc = ud; uc->size != 0; uc++) {
-					if (utf8_combine(uc, &wc) != UTF8_DONE)
-						continue;
-					cmd_send_keys_inject(c, item, wc);
-				}
-				free(ud);
-			}
-		}
-
+		for (i = 0; i < args->argc; i++)
+			item = cmd_send_keys_inject_string(c, fs, item, args, i);
 	}
 
 	return (CMD_RETURN_NORMAL);

cmd-set-hook.c

@@ -1,133 +0,0 @@
-/* $OpenBSD$ */
-
-/*
- * Copyright (c) 2012 Thomas Adam <thomas@xteddy.org>
- *
- * 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"
-
-/*
- * Set or show global or session hooks.
- */
-
-static enum cmd_retval cmd_set_hook_exec(struct cmd *, struct cmdq_item *);
-
-const struct cmd_entry cmd_set_hook_entry = {
-	.name = "set-hook",
-	.alias = NULL,
-
-	.args = { "gRt:u", 1, 2 },
-	.usage = "[-gRu] " CMD_TARGET_SESSION_USAGE " hook-name [command]",
-
-	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
-
-	.flags = CMD_AFTERHOOK,
-	.exec = cmd_set_hook_exec
-};
-
-const struct cmd_entry cmd_show_hooks_entry = {
-	.name = "show-hooks",
-	.alias = NULL,
-
-	.args = { "gt:", 0, 1 },
-	.usage = "[-g] " CMD_TARGET_SESSION_USAGE,
-
-	.target = { 't', CMD_FIND_SESSION, 0 },
-
-	.flags = CMD_AFTERHOOK,
-	.exec = cmd_set_hook_exec
-};
-
-static enum cmd_retval
-cmd_set_hook_exec(struct cmd *self, struct cmdq_item *item)
-{
-	struct args	*args = self->args;
-	struct cmd_list	*cmdlist;
-	struct hooks	*hooks;
-	struct hook	*hook;
-	char		*cause, *tmp;
-	const char	*name, *cmd, *target;
-
-	if (args_has(args, 'g'))
-		hooks = global_hooks;
-	else {
-		if (item->target.s == NULL) {
-			target = args_get(args, 't');
-			if (target != NULL)
-				cmdq_error(item, "no such session: %s", target);
-			else
-				cmdq_error(item, "no current session");
-			return (CMD_RETURN_ERROR);
-		}
-		hooks = item->target.s->hooks;
-	}
-
-	if (self->entry == &cmd_show_hooks_entry) {
-		hook = hooks_first(hooks);
-		while (hook != NULL) {
-			tmp = cmd_list_print(hook->cmdlist);
-			cmdq_print(item, "%s -> %s", hook->name, tmp);
-			free(tmp);
-
-			hook = hooks_next(hook);
-		}
-		return (CMD_RETURN_NORMAL);
-	}
-
-	name = args->argv[0];
-	if (*name == '\0') {
-		cmdq_error(item, "invalid hook name");
-		return (CMD_RETURN_ERROR);
-	}
-	if (args->argc < 2)
-		cmd = NULL;
-	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')) {
-		hooks_remove(hooks, name);
-		return (CMD_RETURN_NORMAL);
-	}
-
-	if (cmd == NULL) {
-		cmdq_error(item, "no command given");
-		return (CMD_RETURN_ERROR);
-	}
-	cmdlist = cmd_string_parse(cmd, NULL, 0, &cause);
-	if (cmdlist == NULL) {
-		if (cause != NULL) {
-			cmdq_error(item, "%s", cause);
-			free(cause);
-		}
-		return (CMD_RETURN_ERROR);
-	}
-	hooks_add(hooks, name, cmdlist);
-	cmd_list_free(cmdlist);
-
-	return (CMD_RETURN_NORMAL);
-}

cmd-set-option.c

@@ -43,10 +43,10 @@ const struct cmd_entry cmd_set_option_entry = {
 	.name = "set-option",
 	.alias = "set",
 
-	.args = { "aFgoqst:uw", 1, 2 },
-	.usage = "[-aFgosquw] [-t target-window] option [value]",
+	.args = { "aFgopqst:uw", 1, 2 },
+	.usage = "[-aFgopqsuw] " CMD_TARGET_PANE_USAGE " option [value]",
 
-	.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
+	.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_set_option_exec
@@ -65,6 +65,19 @@ const struct cmd_entry cmd_set_window_option_entry = {
 	.exec = cmd_set_option_exec
 };
 
+const struct cmd_entry cmd_set_hook_entry = {
+	.name = "set-hook",
+	.alias = NULL,
+
+	.args = { "agRt:u", 1, 2 },
+	.usage = "[-agRu] " CMD_TARGET_SESSION_USAGE " hook [command]",
+
+	.target = { 't', CMD_FIND_SESSION, CMD_FIND_CANFAIL },
+
+	.flags = CMD_AFTERHOOK,
+	.exec = cmd_set_option_exec
+};
+
 static enum cmd_retval
 cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 {
@@ -75,18 +88,27 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 	struct session			*s = fs->s;
 	struct winlink			*wl = fs->wl;
 	struct window			*w;
-	enum options_table_scope	 scope;
+	struct window_pane		*wp;
 	struct options			*oo;
 	struct options_entry		*parent, *o;
 	char				*name, *argument, *value = NULL, *cause;
-	const char			*target;
 	int				 window, idx, already, error, ambiguous;
+	int				 scope;
 	struct style			*sy;
 
+	window = (self->entry == &cmd_set_window_option_entry);
+
 	/* Expand argument. */
 	c = cmd_find_client(item, NULL, 1);
 	argument = format_single(item, args->argv[0], c, s, wl, NULL);
 
+	/* If set-hook -R, fire the hook straight away. */
+	if (self->entry == &cmd_set_hook_entry && args_has(args, 'R')) {
+		notify_hook(item, argument);
+		free(argument);
+		return (CMD_RETURN_NORMAL);
+	}
+
 	/* Parse option name and index. */
 	name = options_match(argument, &idx, &ambiguous);
 	if (name == NULL) {
@@ -105,25 +127,8 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 	else
 		value = xstrdup(args->argv[1]);
 
-	/*
-	 * Figure out the scope: for user options it comes from the arguments,
-	 * otherwise from the option name.
-	 */
-	if (*name == '@') {
-		window = (self->entry == &cmd_set_window_option_entry);
-		scope = options_scope_from_flags(args, window, fs, &oo, &cause);
-	} else {
-		if (options_get_only(global_options, name) != NULL)
-			scope = OPTIONS_TABLE_SERVER;
-		else if (options_get_only(global_s_options, name) != NULL)
-			scope = OPTIONS_TABLE_SESSION;
-		else if (options_get_only(global_w_options, name) != NULL)
-			scope = OPTIONS_TABLE_WINDOW;
-		else {
-			scope = OPTIONS_TABLE_NONE;
-			xasprintf(&cause, "unknown option: %s", argument);
-		}
-	}
+	/* Get the scope and table for the option .*/
+	scope = options_scope_from_name(args, window, name, fs, &oo, &cause);
 	if (scope == OPTIONS_TABLE_NONE) {
 		if (args_has(args, 'q'))
 			goto out;
@@ -131,35 +136,6 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 		free(cause);
 		goto fail;
 	}
-
-	/* Which table should this option go into? */
-	if (scope == OPTIONS_TABLE_SERVER)
-		oo = global_options;
-	else if (scope == OPTIONS_TABLE_SESSION) {
-		if (args_has(self->args, 'g'))
-			oo = global_s_options;
-		else if (s == NULL) {
-			target = args_get(args, 't');
-			if (target != NULL)
-				cmdq_error(item, "no such session: %s", target);
-			else
-				cmdq_error(item, "no current session");
-			goto fail;
-		} else
-			oo = s->options;
-	} else if (scope == OPTIONS_TABLE_WINDOW) {
-		if (args_has(self->args, 'g'))
-			oo = global_w_options;
-		else if (wl == NULL) {
-			target = args_get(args, 't');
-			if (target != NULL)
-				cmdq_error(item, "no such window: %s", target);
-			else
-				cmdq_error(item, "no current window");
-			goto fail;
-		} else
-			oo = wl->window->options;
-	}
 	o = options_get_only(oo, name);
 	parent = options_get(oo, name);
 
@@ -200,8 +176,11 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 				options_default(oo, options_table_entry(o));
 			else
 				options_remove(o);
-		} else
-			options_array_set(o, idx, NULL, 0);
+		} else if (options_array_set(o, idx, NULL, 0, &cause) != 0) {
+			cmdq_error(item, "%s", cause);
+			free(cause);
+			goto fail;
+		}
 	} else if (*name == '@') {
 		if (value == NULL) {
 			cmdq_error(item, "empty value");
@@ -222,9 +201,15 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 		if (idx == -1) {
 			if (!append)
 				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", argument);
+			if (options_array_assign(o, value, &cause) != 0) {
+				cmdq_error(item, "%s", cause);
+				free(cause);
+				goto fail;
+			}
+		} else if (options_array_set(o, idx, value, append,
+		    &cause) != 0) {
+			cmdq_error(item, "%s", cause);
+			free(cause);
 			goto fail;
 		}
 	}
@@ -265,8 +250,8 @@ cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
 		alerts_reset_all();
 	if (strcmp(name, "window-style") == 0 ||
 	    strcmp(name, "window-active-style") == 0) {
-		RB_FOREACH(w, windows, &windows)
-			w->flags |= WINDOW_STYLECHANGED;
+		RB_FOREACH(wp, window_pane_tree, &all_window_panes)
+			wp->flags |= PANE_STYLECHANGED;
 	}
 	if (strcmp(name, "pane-border-status") == 0) {
 		RB_FOREACH(w, windows, &windows)
@@ -366,7 +351,7 @@ cmd_set_option_set(struct cmd *self, struct cmdq_item *item, struct options *oo,
 			return (-1);
 		}
 		return (0);
-	case OPTIONS_TABLE_ARRAY:
+	case OPTIONS_TABLE_COMMAND:
 		break;
 	}
 	return (-1);

cmd-show-options.c

@@ -29,19 +29,19 @@
 
 static enum cmd_retval	cmd_show_options_exec(struct cmd *, struct cmdq_item *);
 
-static enum cmd_retval	cmd_show_options_one(struct cmd *, struct cmdq_item *,
-			    struct options *);
+static void		cmd_show_options_print(struct cmd *, struct cmdq_item *,
+			    struct options_entry *, int, int);
 static enum cmd_retval	cmd_show_options_all(struct cmd *, struct cmdq_item *,
-		    	    struct options *);
+			    int, struct options *);
 
 const struct cmd_entry cmd_show_options_entry = {
 	.name = "show-options",
 	.alias = "show",
 
-	.args = { "gqst:vw", 0, 1 },
-	.usage = "[-gqsvw] [-t target-session|target-window] [option]",
+	.args = { "AgHpqst:vw", 0, 1 },
+	.usage = "[-AgHpqsvw] " CMD_TARGET_PANE_USAGE " [option]",
 
-	.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
+	.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
 
 	.flags = CMD_AFTERHOOK,
 	.exec = cmd_show_options_exec
@@ -60,129 +60,193 @@ const struct cmd_entry cmd_show_window_options_entry = {
 	.exec = cmd_show_options_exec
 };
 
+const struct cmd_entry cmd_show_hooks_entry = {
+	.name = "show-hooks",
+	.alias = NULL,
+
+	.args = { "gt:", 0, 1 },
+	.usage = "[-g] " CMD_TARGET_SESSION_USAGE,
+
+	.target = { 't', CMD_FIND_SESSION, 0 },
+
+	.flags = CMD_AFTERHOOK,
+	.exec = cmd_show_options_exec
+};
+
 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->target;
+	struct client			*c = cmd_find_client(item, NULL, 1);
+	struct session			*s = item->target.s;
+	struct winlink			*wl = item->target.wl;
 	struct options			*oo;
-	enum options_table_scope	 scope;
-	char				*cause;
-	int				 window;
+	char				*argument, *name = NULL, *cause;
+	int				 window, idx, ambiguous, parent, scope;
+	struct options_entry		*o;
 
 	window = (self->entry == &cmd_show_window_options_entry);
-	scope = options_scope_from_flags(args, window, fs, &oo, &cause);
+
+	if (args->argc == 0) {
+		scope = options_scope_from_flags(args, window, fs, &oo, &cause);
+		if (scope == OPTIONS_TABLE_NONE) {
+			if (args_has(args, 'q'))
+				return (CMD_RETURN_NORMAL);
+			cmdq_error(item, "%s", cause);
+			free(cause);
+			return (CMD_RETURN_ERROR);
+		}
+		return (cmd_show_options_all(self, item, scope, oo));
+	}
+	argument = format_single(item, args->argv[0], c, s, wl, NULL);
+
+	name = options_match(argument, &idx, &ambiguous);
+	if (name == NULL) {
+		if (args_has(args, 'q'))
+			goto fail;
+		if (ambiguous)
+			cmdq_error(item, "ambiguous option: %s", argument);
+		else
+			cmdq_error(item, "invalid option: %s", argument);
+		goto fail;
+	}
+	scope = options_scope_from_name(args, window, name, fs, &oo, &cause);
 	if (scope == OPTIONS_TABLE_NONE) {
+		if (args_has(args, 'q'))
+			goto fail;
 		cmdq_error(item, "%s", cause);
 		free(cause);
-		return (CMD_RETURN_ERROR);
+		goto fail;
 	}
+	o = options_get_only(oo, name);
+	if (args_has(args, 'A') && o == NULL) {
+		o = options_get(oo, name);
+		parent = 1;
+	} else
+		parent = 0;
+	if (o != NULL)
+		cmd_show_options_print(self, item, o, idx, parent);
 
-	if (args->argc == 0)
-		return (cmd_show_options_all(self, item, oo));
-	else
-		return (cmd_show_options_one(self, item, oo));
+	free(name);
+	free(argument);
+	return (CMD_RETURN_NORMAL);
+
+fail:
+	free(name);
+	free(argument);
+	return (CMD_RETURN_ERROR);
 }
 
 static void
 cmd_show_options_print(struct cmd *self, struct cmdq_item *item,
-    struct options_entry *o, int idx)
+    struct options_entry *o, int idx, int parent)
 {
 	struct options_array_item	*a;
-	const char			*name, *value;
-	char				*tmp, *escaped;
+	const char			*name = options_name(o);
+	char				*value, *tmp = NULL, *escaped;
 
 	if (idx != -1) {
-		xasprintf(&tmp, "%s[%d]", options_name(o), idx);
+		xasprintf(&tmp, "%s[%d]", name, idx);
 		name = tmp;
 	} else {
 		if (options_isarray(o)) {
 			a = options_array_first(o);
+			if (a == NULL) {
+				if (!args_has(self->args, 'v'))
+					cmdq_print(item, "%s", name);
+				return;
+			}
 			while (a != NULL) {
 				idx = options_array_item_index(a);
-				cmd_show_options_print(self, item, o, idx);
+				cmd_show_options_print(self, item, o, idx,
+				    parent);
 				a = options_array_next(a);
 			}
 			return;
 		}
-		tmp = NULL;
-		name = options_name(o);
 	}
 
 	value = options_tostring(o, idx, 0);
 	if (args_has(self->args, 'v'))
 		cmdq_print(item, "%s", value);
 	else if (options_isstring(o)) {
-		utf8_stravis(&escaped, value, VIS_OCTAL|VIS_TAB|VIS_NL|VIS_DQ);
-		cmdq_print(item, "%s \"%s\"", name, escaped);
+		escaped = args_escape(value);
+		if (parent)
+			cmdq_print(item, "%s* %s", name, escaped);
+		else
+			cmdq_print(item, "%s %s", name, escaped);
 		free(escaped);
-	} else
-		cmdq_print(item, "%s %s", name, value);
+	} else {
+		if (parent)
+			cmdq_print(item, "%s* %s", name, value);
+		else
+			cmdq_print(item, "%s %s", name, value);
+	}
+	free(value);
 
 	free(tmp);
 }
 
 static enum cmd_retval
-cmd_show_options_one(struct cmd *self, struct cmdq_item *item,
+cmd_show_options_all(struct cmd *self, struct cmdq_item *item, int scope,
     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;
-	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')) {
-			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) {
-			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);
-}
-
-static enum cmd_retval
-cmd_show_options_all(struct cmd *self, struct cmdq_item *item,
-    struct options *oo)
-{
-	struct options_entry			*o;
 	const struct options_table_entry	*oe;
+	struct options_entry			*o;
 	struct options_array_item		*a;
+	const char				*name;
 	u_int					 idx;
+	int					 parent;
 
 	o = options_first(oo);
 	while (o != NULL) {
-		oe = options_table_entry(o);
+		if (options_table_entry(o) == NULL)
+			cmd_show_options_print(self, item, o, -1, 0);
+		o = options_next(o);
+	}
+	for (oe = options_table; oe->name != NULL; oe++) {
+		if (~oe->scope & scope)
+			continue;
+
+		if ((self->entry != &cmd_show_hooks_entry &&
+		    !args_has(self->args, 'H') &&
+		    oe != NULL &&
+		    (oe->flags & OPTIONS_TABLE_IS_HOOK)) ||
+		    (self->entry == &cmd_show_hooks_entry &&
+		    (oe == NULL ||
+		    (~oe->flags & OPTIONS_TABLE_IS_HOOK))))
+			continue;
+
+		o = options_get_only(oo, oe->name);
+		if (o == NULL) {
+			if (!args_has(self->args, 'A'))
+				continue;
+			o = options_get(oo, oe->name);
+			if (o == NULL)
+				continue;
+			parent = 1;
+		} else
+			parent = 0;
+
 		if (!options_isarray(o))
-			cmd_show_options_print(self, item, o, -1);
-		else {
-			a = options_array_first(o);
+			cmd_show_options_print(self, item, o, -1, parent);
+		else if ((a = options_array_first(o)) == NULL) {
+			if (!args_has(self->args, 'v')) {
+				name = options_name(o);
+				if (parent)
+					cmdq_print(item, "%s*", name);
+				else
+					cmdq_print(item, "%s", name);
+			}
+		} else {
 			while (a != NULL) {
 				idx = options_array_item_index(a);
-				cmd_show_options_print(self, item, o, idx);
+				cmd_show_options_print(self, item, o, idx,
+				    parent);
 				a = options_array_next(a);
 			}
 		}
-		o = options_next(o);
 	}
 	return (CMD_RETURN_NORMAL);
 }

cmd-source-file.c

@@ -31,68 +31,162 @@
 
 static enum cmd_retval	cmd_source_file_exec(struct cmd *, struct cmdq_item *);
 
-static enum cmd_retval	cmd_source_file_done(struct cmdq_item *, void *);
-
 const struct cmd_entry cmd_source_file_entry = {
 	.name = "source-file",
 	.alias = "source",
 
-	.args = { "q", 1, 1 },
-	.usage = "[-q] path",
+	.args = { "nqv", 1, -1 },
+	.usage = "[-nqv] path ...",
 
 	.flags = 0,
 	.exec = cmd_source_file_exec
 };
 
-static enum cmd_retval
-cmd_source_file_exec(struct cmd *self, struct cmdq_item *item)
-{
-	struct args		*args = self->args;
-	int			 quiet = args_has(args, 'q');
-	struct client		*c = item->client;
-	struct cmdq_item	*new_item;
-	enum cmd_retval		 retval;
-	char			*pattern, *tmp;
-	const char		*path = args->argv[0];
-	glob_t			 g;
-	u_int			 i;
+struct cmd_source_file_data {
+	struct cmdq_item	 *item;
+	int			  flags;
 
-	if (*path == '/')
-		pattern = xstrdup(path);
-	else {
-		utf8_stravis(&tmp, server_client_get_cwd(c, NULL), VIS_GLOB);
-		xasprintf(&pattern, "%s/%s", tmp, path);
-		free(tmp);
-	}
-	log_debug("%s: %s", __func__, pattern);
+	struct cmdq_item	 *after;
+	enum cmd_retval		  retval;
 
-	retval = CMD_RETURN_NORMAL;
-	if (glob(pattern, 0, NULL, &g) != 0) {
-		if (!quiet || errno != ENOENT) {
-			cmdq_error(item, "%s: %s", path, strerror(errno));
-			retval = CMD_RETURN_ERROR;
-		}
-		free(pattern);
-		return (retval);
-	}
-	free(pattern);
-
-	for (i = 0; i < (u_int)g.gl_pathc; i++) {
-		if (load_cfg(g.gl_pathv[i], c, item, quiet) < 0)
-			retval = CMD_RETURN_ERROR;
-	}
-	if (cfg_finished) {
-		new_item = cmdq_get_callback(cmd_source_file_done, NULL);
-		cmdq_insert_after(item, new_item);
-	}
-
-	globfree(&g);
-	return (retval);
-}
+	u_int			  current;
+	char			**files;
+	u_int			  nfiles;
+};
 
 static enum cmd_retval
-cmd_source_file_done(struct cmdq_item *item, __unused void *data)
+cmd_source_file_complete_cb(struct cmdq_item *item, __unused void *data)
 {
 	cfg_print_causes(item);
 	return (CMD_RETURN_NORMAL);
 }
+
+static void
+cmd_source_file_complete(struct client *c, struct cmd_source_file_data *cdata)
+{
+	struct cmdq_item	*new_item;
+
+	if (cfg_finished) {
+		if (cdata->retval == CMD_RETURN_ERROR && c->session == NULL)
+			c->retval = 1;
+		new_item = cmdq_get_callback(cmd_source_file_complete_cb, NULL);
+		cmdq_insert_after(cdata->after, new_item);
+	}
+
+	free(cdata->files);
+	free(cdata);
+}
+
+static void
+cmd_source_file_done(struct client *c, const char *path, int error,
+    int closed, struct evbuffer *buffer, void *data)
+{
+	struct cmd_source_file_data	*cdata = data;
+	struct cmdq_item		*item = cdata->item;
+	void				*bdata = EVBUFFER_DATA(buffer);
+	size_t				 bsize = EVBUFFER_LENGTH(buffer);
+	u_int				 n;
+	struct cmdq_item		*new_item;
+
+	if (!closed)
+		return;
+
+	if (error != 0)
+		cmdq_error(item, "%s: %s", path, strerror(error));
+	else if (bsize != 0) {
+		if (load_cfg_from_buffer(bdata, bsize, path, c, cdata->after,
+		    cdata->flags, &new_item) < 0)
+			cdata->retval = CMD_RETURN_ERROR;
+		else if (new_item != NULL)
+			cdata->after = new_item;
+	}
+
+	n = ++cdata->current;
+	if (n < cdata->nfiles)
+		file_read(c, cdata->files[n], cmd_source_file_done, cdata);
+	else {
+		cmd_source_file_complete(c, cdata);
+		cmdq_continue(item);
+	}
+}
+
+static void
+cmd_source_file_add(struct cmd_source_file_data *cdata, const char *path)
+{
+	log_debug("%s: %s", __func__, path);
+	cdata->files = xreallocarray(cdata->files, cdata->nfiles + 1,
+	    sizeof *cdata->files);
+	cdata->files[cdata->nfiles++] = xstrdup(path);
+}
+
+static enum cmd_retval
+cmd_source_file_exec(struct cmd *self, struct cmdq_item *item)
+{
+	struct args			*args = self->args;
+	struct cmd_source_file_data	*cdata;
+	struct client			*c = item->client;
+	enum cmd_retval			 retval = CMD_RETURN_NORMAL;
+	char				*pattern, *cwd;
+	const char			*path, *error;
+	glob_t				 g;
+	int				 i, result;
+	u_int				 j;
+
+	cdata = xcalloc(1, sizeof *cdata);
+	cdata->item = item;
+
+	if (args_has(args, 'q'))
+		cdata->flags |= CMD_PARSE_QUIET;
+	if (args_has(args, 'n'))
+		cdata->flags |= CMD_PARSE_PARSEONLY;
+	if (args_has(args, 'v'))
+		cdata->flags |= CMD_PARSE_VERBOSE;
+
+	utf8_stravis(&cwd, server_client_get_cwd(c, NULL), VIS_GLOB);
+
+	for (i = 0; i < args->argc; i++) {
+		path = args->argv[i];
+		if (strcmp(path, "-") == 0) {
+			cmd_source_file_add(cdata, "-");
+			continue;
+		}
+
+		if (*path == '/')
+			pattern = xstrdup(path);
+		else
+			xasprintf(&pattern, "%s/%s", cwd, path);
+		log_debug("%s: %s", __func__, pattern);
+
+		if ((result = glob(pattern, 0, NULL, &g)) != 0) {
+			if (result != GLOB_NOMATCH ||
+			    (~cdata->flags & CMD_PARSE_QUIET)) {
+				if (result == GLOB_NOMATCH)
+					error = strerror(ENOENT);
+				else if (result == GLOB_NOSPACE)
+					error = strerror(ENOMEM);
+				else
+					error = strerror(EINVAL);
+				cmdq_error(item, "%s: %s", path, error);
+				retval = CMD_RETURN_ERROR;
+			}
+			free(pattern);
+			continue;
+		}
+		free(pattern);
+
+		for (j = 0; j < g.gl_pathc; j++)
+			cmd_source_file_add(cdata, g.gl_pathv[j]);
+	}
+
+	cdata->after = item;
+	cdata->retval = retval;
+
+	if (cdata->nfiles != 0) {
+		file_read(c, cdata->files[0], cmd_source_file_done, cdata);
+		retval = CMD_RETURN_WAIT;
+	} else
+		cmd_source_file_complete(c, cdata);
+
+	free(cwd);
+	return (retval);
+}

cmd-split-window.c

@@ -39,9 +39,9 @@ const struct cmd_entry cmd_split_window_entry = {
 	.name = "split-window",
 	.alias = "splitw",
 
-	.args = { "bc:dfF:l:hp:Pt:v", 0, -1 },
-	.usage = "[-bdfhvP] [-c start-directory] [-F format] "
-		 "[-p percentage|-l size] " CMD_TARGET_PANE_USAGE " [command]",
+	.args = { "bc:de:fF:hIl:p:Pt:v", 0, -1 },
+	.usage = "[-bdefhIPv] [-c start-directory] [-e environment] "
+		 "[-F format] [-l size] " CMD_TARGET_PANE_USAGE " [command]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
 
@@ -52,111 +52,122 @@ 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 cmd_find_state	*current = &item->shared->current;
+	struct spawn_context	 sc;
 	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->target.wp, *new_wp = NULL;
-	struct environ		*env;
-	const char		*cmd, *path, *shell, *template, *tmp;
-	char		       **argv, *cause, *new_cause, *cp, *cwd;
-	u_int			 hlimit;
-	int			 argc, size, percentage, before;
+	struct window_pane	*wp = item->target.wp, *new_wp;
 	enum layout_type	 type;
 	struct layout_cell	*lc;
-	struct environ_entry	*envent;
-	struct cmd_find_state    fs;
+	struct cmd_find_state	 fs;
+	int			 size, percentage, flags, input;
+	const char		*template, *add, *errstr, *p;
+	char			*cause, *cp, *copy;
+	size_t			 plen;
+	struct args_value	*value;
 
-	server_unzoom_window(w);
-
-	if (args->argc == 0) {
-		cmd = options_get_string(s->options, "default-command");
-		if (cmd != NULL && *cmd != '\0') {
-			argc = 1;
-			argv = (char **)&cmd;
-		} else {
-			argc = 0;
-			argv = NULL;
-		}
-	} else {
-		argc = args->argc;
-		argv = args->argv;
-	}
-
-	if ((tmp = args_get(args, 'c')) != NULL)
-		cwd = format_single(item, tmp, c, s, NULL, NULL);
-	else
-		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')) {
-		size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
-		if (cause != NULL) {
-			xasprintf(&new_cause, "size %s", cause);
-			free(cause);
-			cause = new_cause;
-			goto error;
+	else
+		type = LAYOUT_TOPBOTTOM;
+	if ((p = args_get(args, 'l')) != NULL) {
+		plen = strlen(p);
+		if (p[plen - 1] == '%') {
+			copy = xstrdup(p);
+			copy[plen - 1] = '\0';
+			percentage = strtonum(copy, 0, INT_MAX, &errstr);
+			free(copy);
+			if (errstr != NULL) {
+				cmdq_error(item, "percentage %s", errstr);
+				return (CMD_RETURN_ERROR);
+			}
+			if (type == LAYOUT_TOPBOTTOM)
+				size = (wp->sy * percentage) / 100;
+			else
+				size = (wp->sx * percentage) / 100;
+		} else {
+			size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
+			if (cause != NULL) {
+				cmdq_error(item, "lines %s", cause);
+				free(cause);
+				return (CMD_RETURN_ERROR);
+			}
 		}
 	} else if (args_has(args, 'p')) {
 		percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
 		if (cause != NULL) {
-			xasprintf(&new_cause, "percentage %s", cause);
+			cmdq_error(item, "create pane failed: -p %s", cause);
 			free(cause);
-			cause = new_cause;
-			goto error;
+			return (CMD_RETURN_ERROR);
 		}
 		if (type == LAYOUT_TOPBOTTOM)
 			size = (wp->sy * percentage) / 100;
 		else
 			size = (wp->sx * percentage) / 100;
-	}
-	hlimit = options_get_number(s->options, "history-limit");
-
-	shell = options_get_string(s->options, "default-shell");
-	if (*shell == '\0' || areshell(shell))
-		shell = _PATH_BSHELL;
-
-	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, before, args_has(args, 'f'), hlimit);
-	layout_make_leaf(lc, new_wp);
-
-	path = NULL;
-	if (item->client != NULL && item->client->session == NULL)
-		envent = environ_find(item->client->environ, "PATH");
-	else
-		envent = environ_find(s->environ, "PATH");
-	if (envent != NULL)
-		path = envent->value;
-
-	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);
-		goto error;
-	}
-	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);
+		size = -1;
+
+	server_unzoom_window(wp->window);
+	input = (args_has(args, 'I') && args->argc == 0);
+
+	flags = 0;
+	if (args_has(args, 'b'))
+		flags |= SPAWN_BEFORE;
+	if (args_has(args, 'f'))
+		flags |= SPAWN_FULLSIZE;
+	if (input || (args->argc == 1 && *args->argv[0] == '\0'))
+		flags |= SPAWN_EMPTY;
+
+	lc = layout_split_pane(wp, type, size, flags);
+	if (lc == NULL) {
+		cmdq_error(item, "no space for new pane");
+		return (CMD_RETURN_ERROR);
+	}
+
+	memset(&sc, 0, sizeof sc);
+	sc.item = item;
+	sc.s = s;
+	sc.wl = wl;
+
+	sc.wp0 = wp;
+	sc.lc = lc;
+
+	sc.name = NULL;
+	sc.argc = args->argc;
+	sc.argv = args->argv;
+	sc.environ = environ_create();
+
+	add = args_first_value(args, 'e', &value);
+	while (add != NULL) {
+		environ_put(sc.environ, add);
+		add = args_next_value(&value);
+	}
+
+	sc.idx = -1;
+	sc.cwd = args_get(args, 'c');
+
+	sc.flags = flags;
+	if (args_has(args, 'd'))
+		sc.flags |= SPAWN_DETACHED;
+
+	if ((new_wp = spawn_pane(&sc, &cause)) == NULL) {
+		cmdq_error(item, "create pane failed: %s", cause);
+		free(cause);
+		return (CMD_RETURN_ERROR);
+	}
+	if (input && window_pane_start_input(new_wp, item, &cause) != 0) {
+		layout_close_pane(new_wp);
+		window_remove_pane(wp->window, new_wp);
+		cmdq_error(item, "%s", cause);
+		free(cause);
+		return (CMD_RETURN_ERROR);
+	}
+	if (!args_has(args, 'd'))
+		cmd_find_from_winlink_pane(current, wl, new_wp, 0);
+	server_redraw_window(wp->window);
+	server_status_session(s);
 
 	if (args_has(args, 'P')) {
 		if ((template = args_get(args, 'F')) == NULL)
@@ -165,22 +176,12 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 		cmdq_print(item, "%s", cp);
 		free(cp);
 	}
-	notify_window("window-layout-changed", w);
 
 	cmd_find_from_winlink_pane(&fs, wl, new_wp, 0);
-	hooks_insert(s->hooks, item, &fs, "after-split-window");
+	cmdq_insert_hook(s, item, &fs, "after-split-window");
 
-	free(cwd);
+	environ_free(sc.environ);
+	if (input)
+		return (CMD_RETURN_WAIT);
 	return (CMD_RETURN_NORMAL);
-
-error:
-	if (new_wp != NULL) {
-		layout_close_pane(new_wp);
-		window_remove_pane(w, new_wp);
-	}
-	cmdq_error(item, "create pane failed: %s", cause);
-	free(cause);
-
-	free(cwd);
-	return (CMD_RETURN_ERROR);
 }

cmd-string.c

@@ -1,390 +0,0 @@
-/* $OpenBSD$ */
-
-/*
- * Copyright (c) 2008 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 <errno.h>
-#include <pwd.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "tmux.h"
-
-/*
- * Parse a command from a string.
- */
-
-static int	 cmd_string_getc(const char *, size_t *);
-static void	 cmd_string_ungetc(size_t *);
-static void	 cmd_string_copy(char **, char *, size_t *);
-static char	*cmd_string_string(const char *, size_t *, char, int);
-static char	*cmd_string_variable(const char *, size_t *);
-static char	*cmd_string_expand_tilde(const char *, size_t *);
-
-static int
-cmd_string_getc(const char *s, size_t *p)
-{
-	const u_char	*ucs = s;
-
-	if (ucs[*p] == '\0')
-		return (EOF);
-	return (ucs[(*p)++]);
-}
-
-static void
-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)
-{
-	size_t		p = 0;
-	int		ch, argc = 0, append = 0;
-	char	      **argv = NULL, *buf = NULL, *t;
-	const char     *whitespace, *equals;
-	size_t		len = 0;
-
-	for (;;) {
-		ch = cmd_string_getc(s, &p);
-		switch (ch) {
-		case '\'':
-			if ((t = cmd_string_string(s, &p, '\'', 0)) == NULL)
-				goto error;
-			cmd_string_copy(&buf, t, &len);
-			break;
-		case '"':
-			if ((t = cmd_string_string(s, &p, '"', 1)) == NULL)
-				goto error;
-			cmd_string_copy(&buf, t, &len);
-			break;
-		case '$':
-			if ((t = cmd_string_variable(s, &p)) == NULL)
-				goto error;
-			cmd_string_copy(&buf, t, &len);
-			break;
-		case '#':
-			/* Comment: discard rest of line. */
-			while ((ch = cmd_string_getc(s, &p)) != EOF)
-				;
-			/* FALLTHROUGH */
-		case EOF:
-		case ' ':
-		case '\t':
-			if (buf != NULL) {
-				buf = xrealloc(buf, len + 1);
-				buf[len] = '\0';
-
-				argv = xreallocarray(argv, argc + 1,
-				    sizeof *argv);
-				argv[argc++] = buf;
-
-				buf = NULL;
-				len = 0;
-			}
-
-			if (ch != EOF)
-				break;
-
-			while (argc != 0) {
-				equals = strchr(argv[0], '=');
-				whitespace = argv[0] + strcspn(argv[0], " \t");
-				if (equals == NULL || equals > whitespace)
-					break;
-				environ_put(global_environ, argv[0]);
-				argc--;
-				memmove(argv, argv + 1, argc * (sizeof *argv));
-			}
-			goto done;
-		case '~':
-			if (buf != NULL) {
-				append = 1;
-				break;
-			}
-			t = cmd_string_expand_tilde(s, &p);
-			if (t == NULL)
-				goto error;
-			cmd_string_copy(&buf, t, &len);
-			break;
-		default:
-			append = 1;
-			break;
-		}
-		if (append) {
-			if (len >= SIZE_MAX - 2)
-				goto error;
-			buf = xrealloc(buf, len + 1);
-			buf[len++] = ch;
-		}
-		append = 0;
-	}
-
-done:
-	*rargc = argc;
-	*rargv = argv;
-
-	free(buf);
-	return (0);
-
-error:
-	if (argv != NULL)
-		cmd_free_argv(argc, argv);
-	free(buf);
-	return (-1);
-}
-
-struct cmd_list *
-cmd_string_parse(const char *s, const char *file, u_int line, char **cause)
-{
-	struct cmd_list	 *cmdlist = NULL;
-	int		  argc;
-	char		**argv;
-
-	*cause = NULL;
-	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);
-			return (NULL);
-		}
-	}
-	cmd_free_argv(argc, argv);
-	return (cmdlist);
-}
-
-static void
-cmd_string_copy(char **dst, char *src, size_t *len)
-{
-	size_t srclen;
-
-	srclen = strlen(src);
-
-	*dst = xrealloc(*dst, *len + srclen + 1);
-	strlcpy(*dst + *len, src, srclen + 1);
-
-	*len += srclen;
-	free(src);
-}
-
-static char *
-cmd_string_string(const char *s, size_t *p, char endch, int esc)
-{
-	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) {
-		case EOF:
-			goto error;
-		case '\\':
-			if (!esc)
-				break;
-			switch (ch = cmd_string_getc(s, p)) {
-			case EOF:
-				goto error;
-			case 'e':
-				ch = '\033';
-				break;
-			case 'r':
-				ch = '\r';
-				break;
-			case 'n':
-				ch = '\n';
-				break;
-			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 '$':
-			if (!esc)
-				break;
-			if ((t = cmd_string_variable(s, p)) == NULL)
-				goto error;
-			cmd_string_copy(&buf, t, &len);
-			continue;
-		}
-
-		if (len >= SIZE_MAX - 2)
-			goto error;
-		buf = xrealloc(buf, len + 1);
-		buf[len++] = ch;
-	}
-
-	buf = xrealloc(buf, len + 1);
-	buf[len] = '\0';
-	return (buf);
-
-error:
-	free(buf);
-	return (NULL);
-}
-
-static char *
-cmd_string_variable(const char *s, size_t *p)
-{
-	int			ch, fch;
-	char		       *buf, *t;
-	size_t			len;
-	struct environ_entry   *envent;
-
-#define cmd_string_first(ch) ((ch) == '_' || \
-	((ch) >= 'a' && (ch) <= 'z') || ((ch) >= 'A' && (ch) <= 'Z'))
-#define cmd_string_other(ch) ((ch) == '_' || \
-	((ch) >= 'a' && (ch) <= 'z') || ((ch) >= 'A' && (ch) <= 'Z') || \
-	((ch) >= '0' && (ch) <= '9'))
-
-	buf = NULL;
-	len = 0;
-
-	fch = EOF;
-	switch (ch = cmd_string_getc(s, p)) {
-	case EOF:
-		goto error;
-	case '{':
-		fch = '{';
-
-		ch = cmd_string_getc(s, p);
-		if (!cmd_string_first(ch))
-			goto error;
-		/* FALLTHROUGH */
-	default:
-		if (!cmd_string_first(ch)) {
-			xasprintf(&t, "$%c", ch);
-			return (t);
-		}
-
-		buf = xrealloc(buf, len + 1);
-		buf[len++] = ch;
-
-		for (;;) {
-			ch = cmd_string_getc(s, p);
-			if (ch == EOF || !cmd_string_other(ch))
-				break;
-			else {
-				if (len >= SIZE_MAX - 3)
-					goto error;
-				buf = xrealloc(buf, len + 1);
-				buf[len++] = ch;
-			}
-		}
-	}
-
-	if (fch == '{' && ch != '}')
-		goto error;
-	if (ch != EOF && fch != '{')
-		cmd_string_ungetc(p); /* ch */
-
-	buf = xrealloc(buf, len + 1);
-	buf[len] = '\0';
-
-	envent = environ_find(global_environ, buf);
-	free(buf);
-	if (envent == NULL)
-		return (xstrdup(""));
-	return (xstrdup(envent->value));
-
-error:
-	free(buf);
-	return (NULL);
-}
-
-static char *
-cmd_string_expand_tilde(const char *s, size_t *p)
-{
-	struct passwd		*pw;
-	struct environ_entry	*envent;
-	char			*home, *path, *user, *cp;
-	int			 last;
-
-	home = NULL;
-
-	last = cmd_string_getc(s, p);
-	if (last == EOF || last == '/' || last == ' '|| last == '\t') {
-		envent = environ_find(global_environ, "HOME");
-		if (envent != NULL && *envent->value != '\0')
-			home = envent->value;
-		else if ((pw = getpwuid(getuid())) != NULL)
-			home = pw->pw_dir;
-	} else {
-		cmd_string_ungetc(p);
-
-		cp = user = xmalloc(strlen(s));
-		for (;;) {
-			last = cmd_string_getc(s, p);
-			if (last == EOF ||
-			    last == '/' ||
-			    last == ' '||
-			    last == '\t')
-				break;
-			*cp++ = last;
-		}
-		*cp = '\0';
-
-		if ((pw = getpwnam(user)) != NULL)
-			home = pw->pw_dir;
-		free(user);
-	}
-
-	if (home == NULL)
-		return (NULL);
-
-	if (last != EOF)
-		xasprintf(&path, "%s%c", home, last);
-	else
-		xasprintf(&path, "%s", home);
-	return (path);
-}

cmd-swap-pane.c

@@ -32,8 +32,8 @@ const struct cmd_entry cmd_swap_pane_entry = {
 	.name = "swap-pane",
 	.alias = "swapp",
 
-	.args = { "dDs:t:U", 0, 0 },
-	.usage = "[-dDU] " CMD_SRCDST_PANE_USAGE,
+	.args = { "dDs:t:UZ", 0, 0 },
+	.usage = "[-dDUZ] " CMD_SRCDST_PANE_USAGE,
 
 	.source = { 's', CMD_FIND_PANE, CMD_FIND_DEFAULT_MARKED },
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -45,6 +45,7 @@ const struct cmd_entry cmd_swap_pane_entry = {
 static enum cmd_retval
 cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
+	struct args		*args = self->args;
 	struct window		*src_w, *dst_w;
 	struct window_pane	*tmp_wp, *src_wp, *dst_wp;
 	struct layout_cell	*src_lc, *dst_lc;
@@ -54,23 +55,27 @@ cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
 	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')) {
+	if (window_push_zoom(dst_w, args_has(args, 'Z')))
+		server_redraw_window(dst_w);
+
+	if (args_has(args, 'D')) {
 		src_w = dst_w;
 		src_wp = TAILQ_NEXT(dst_wp, entry);
 		if (src_wp == NULL)
 			src_wp = TAILQ_FIRST(&dst_w->panes);
-	} else if (args_has(self->args, 'U')) {
+	} else if (args_has(args, 'U')) {
 		src_w = dst_w;
 		src_wp = TAILQ_PREV(dst_wp, window_panes, entry);
 		if (src_wp == NULL)
 			src_wp = TAILQ_LAST(&dst_w->panes, window_panes);
 	}
-	server_unzoom_window(src_w);
+
+	if (src_w != dst_w && window_push_zoom(src_w, args_has(args, 'Z')))
+		server_redraw_window(src_w);
 
 	if (src_wp == dst_wp)
-		return (CMD_RETURN_NORMAL);
+		goto out;
 
 	tmp_wp = TAILQ_PREV(dst_wp, window_panes, entry);
 	TAILQ_REMOVE(&dst_w->panes, dst_wp, entry);
@@ -90,7 +95,11 @@ cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
 	src_wp->layout_cell = dst_lc;
 
 	src_wp->window = dst_w;
+	options_set_parent(src_wp->options, dst_w->options);
+	src_wp->flags |= PANE_STYLECHANGED;
 	dst_wp->window = src_w;
+	options_set_parent(dst_wp->options, src_w->options);
+	dst_wp->flags |= PANE_STYLECHANGED;
 
 	sx = src_wp->sx; sy = src_wp->sy;
 	xoff = src_wp->xoff; yoff = src_wp->yoff;
@@ -99,19 +108,19 @@ cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
 	dst_wp->xoff = xoff; dst_wp->yoff = yoff;
 	window_pane_resize(dst_wp, sx, sy);
 
-	if (!args_has(self->args, 'd')) {
+	if (!args_has(args, 'd')) {
 		if (src_w != dst_w) {
-			window_set_active_pane(src_w, dst_wp);
-			window_set_active_pane(dst_w, src_wp);
+			window_set_active_pane(src_w, dst_wp, 1);
+			window_set_active_pane(dst_w, src_wp, 1);
 		} else {
 			tmp_wp = dst_wp;
-			window_set_active_pane(src_w, tmp_wp);
+			window_set_active_pane(src_w, tmp_wp, 1);
 		}
 	} else {
 		if (src_w->active == src_wp)
-			window_set_active_pane(src_w, dst_wp);
+			window_set_active_pane(src_w, dst_wp, 1);
 		if (dst_w->active == dst_wp)
-			window_set_active_pane(dst_w, src_wp);
+			window_set_active_pane(dst_w, src_wp, 1);
 	}
 	if (src_w != dst_w) {
 		if (src_w->last == src_wp)
@@ -122,5 +131,10 @@ cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
 	server_redraw_window(src_w);
 	server_redraw_window(dst_w);
 
+out:
+	if (window_pop_zoom(src_w))
+		server_redraw_window(src_w);
+	if (src_w != dst_w && window_pop_zoom(dst_w))
+		server_redraw_window(dst_w);
 	return (CMD_RETURN_NORMAL);
 }

cmd-swap-window.c

@@ -77,7 +77,7 @@ cmd_swap_window_exec(struct cmd *self, struct cmdq_item *item)
 	wl_src->window = w_dst;
 	TAILQ_INSERT_TAIL(&w_dst->winlinks, wl_src, wentry);
 
-	if (!args_has(self->args, 'd')) {
+	if (args_has(self->args, 'd')) {
 		session_select(dst, wl_dst->idx);
 		if (src != dst)
 			session_select(src, wl_src->idx);

cmd-switch-client.c

@@ -34,8 +34,8 @@ const struct cmd_entry cmd_switch_client_entry = {
 	.name = "switch-client",
 	.alias = "switchc",
 
-	.args = { "lc:Enpt:rT:", 0, 0 },
-	.usage = "[-Elnpr] [-c target-client] [-t target-session] "
+	.args = { "lc:Enpt:rT:Z", 0, 0 },
+	.usage = "[-ElnprZ] [-c target-client] [-t target-session] "
 		 "[-T key-table]",
 
 	/* -t is special */
@@ -54,6 +54,7 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 	struct client		*c;
 	struct session		*s;
 	struct winlink		*wl;
+	struct window		*w;
 	struct window_pane	*wp;
 	const char		*tablename;
 	struct key_table	*table;
@@ -61,7 +62,7 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 	if ((c = cmd_find_client(item, args_get(args, 'c'), 0)) == NULL)
 		return (CMD_RETURN_ERROR);
 
-	if (tflag != NULL && tflag[strcspn(tflag, ":.")] != '\0') {
+	if (tflag != NULL && tflag[strcspn(tflag, ":.%")] != '\0') {
 		type = CMD_FIND_PANE;
 		flags = 0;
 	} else {
@@ -72,6 +73,7 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 		return (CMD_RETURN_ERROR);
 	s = item->target.s;
 	wl = item->target.wl;
+	w = wl->window;
 	wp = item->target.wp;
 
 	if (args_has(args, 'r'))
@@ -112,12 +114,15 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 	} else {
 		if (item->client == NULL)
 			return (CMD_RETURN_NORMAL);
+		if (wl != NULL && wp != NULL) {
+			if (window_push_zoom(w, args_has(self->args, 'Z')))
+				server_redraw_window(w);
+			window_redraw_active_switch(w, wp);
+			window_set_active_pane(w, wp, 1);
+			if (window_pop_zoom(w))
+				server_redraw_window(w);
+		}
 		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, wl);
 			cmd_find_from_session(&item->shared->current, s, 0);
 		}
@@ -137,10 +142,11 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 	session_update_activity(s, NULL);
 	gettimeofday(&s->last_attached_time, NULL);
 
-	recalculate_sizes();
 	server_check_unattached();
 	server_redraw_client(c);
 	s->curw->flags &= ~WINLINK_ALERTFLAGS;
+	s->curw->window->latest = c;
+	recalculate_sizes();
 	alerts_check_session(s);
 
 	return (CMD_RETURN_NORMAL);

cmd-wait-for.c

@@ -153,7 +153,7 @@ cmd_wait_for_signal(__unused struct cmdq_item *item, const char *name,
 	log_debug("signal wait channel %s, with waiters", wc->name);
 
 	TAILQ_FOREACH_SAFE(wi, &wc->waiters, entry, wi1) {
-		wi->item->flags &= ~CMDQ_WAITING;
+		cmdq_continue(wi->item);
 
 		TAILQ_REMOVE(&wc->waiters, wi, entry);
 		free(wi);
@@ -229,7 +229,7 @@ cmd_wait_for_unlock(struct cmdq_item *item, const char *name,
 	}
 
 	if ((wi = TAILQ_FIRST(&wc->lockers)) != NULL) {
-		wi->item->flags &= ~CMDQ_WAITING;
+		cmdq_continue(wi->item);
 		TAILQ_REMOVE(&wc->lockers, wi, entry);
 		free(wi);
 	} else {
@@ -248,13 +248,13 @@ cmd_wait_for_flush(void)
 
 	RB_FOREACH_SAFE(wc, wait_channels, &wait_channels, wc1) {
 		TAILQ_FOREACH_SAFE(wi, &wc->waiters, entry, wi1) {
-			wi->item->flags &= ~CMDQ_WAITING;
+			cmdq_continue(wi->item);
 			TAILQ_REMOVE(&wc->waiters, wi, entry);
 			free(wi);
 		}
 		wc->woken = 1;
 		TAILQ_FOREACH_SAFE(wi, &wc->lockers, entry, wi1) {
-			wi->item->flags &= ~CMDQ_WAITING;
+			cmdq_continue(wi->item);
 			TAILQ_REMOVE(&wc->lockers, wi, entry);
 			free(wi);
 		}

cmd.c

@@ -41,6 +41,7 @@ extern const struct cmd_entry cmd_confirm_before_entry;
 extern const struct cmd_entry cmd_copy_mode_entry;
 extern const struct cmd_entry cmd_delete_buffer_entry;
 extern const struct cmd_entry cmd_detach_client_entry;
+extern const struct cmd_entry cmd_display_menu_entry;
 extern const struct cmd_entry cmd_display_message_entry;
 extern const struct cmd_entry cmd_display_panes_entry;
 extern const struct cmd_entry cmd_down_pane_entry;
@@ -129,6 +130,7 @@ const struct cmd_entry *cmd_table[] = {
 	&cmd_copy_mode_entry,
 	&cmd_delete_buffer_entry,
 	&cmd_detach_client_entry,
+	&cmd_display_menu_entry,
 	&cmd_display_message_entry,
 	&cmd_display_panes_entry,
 	&cmd_find_window_entry,
@@ -202,13 +204,45 @@ const struct cmd_entry *cmd_table[] = {
 	NULL
 };
 
-void
-cmd_log_argv(int argc, char **argv, const char *prefix)
+static u_int cmd_list_next_group = 1;
+
+void printflike(3, 4)
+cmd_log_argv(int argc, char **argv, const char *fmt, ...)
 {
-	int	i;
+	char	*prefix;
+	va_list	 ap;
+	int	 i;
+
+	va_start(ap, fmt);
+	xvasprintf(&prefix, fmt, ap);
+	va_end(ap);
 
 	for (i = 0; i < argc; i++)
 		log_debug("%s: argv[%d]=%s", prefix, i, argv[i]);
+	free(prefix);
+}
+
+void
+cmd_prepend_argv(int *argc, char ***argv, char *arg)
+{
+	char	**new_argv;
+	int	  i;
+
+	new_argv = xreallocarray(NULL, (*argc) + 1, sizeof *new_argv);
+	new_argv[0] = xstrdup(arg);
+	for (i = 0; i < *argc; i++)
+		new_argv[1 + i] = (*argv)[i];
+
+	free(*argv);
+	*argv = new_argv;
+	(*argc)++;
+}
+
+void
+cmd_append_argv(int *argc, char ***argv, char *arg)
+{
+	*argv = xreallocarray(*argv, (*argc) + 1, sizeof **argv);
+	(*argv)[(*argc)++] = xstrdup(arg);
 }
 
 int
@@ -219,7 +253,7 @@ cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
 
 	if (argc == 0)
 		return (0);
-	cmd_log_argv(argc, argv, __func__);
+	cmd_log_argv(argc, argv, "%s", __func__);
 
 	*buf = '\0';
 	for (i = 0; i < argc; i++) {
@@ -256,7 +290,7 @@ cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
 		buf += arglen;
 		len -= arglen;
 	}
-	cmd_log_argv(argc, *argv, __func__);
+	cmd_log_argv(argc, *argv, "%s", __func__);
 
 	return (0);
 }
@@ -315,107 +349,103 @@ cmd_stringify_argv(int argc, char **argv)
 	return (buf);
 }
 
-static int
-cmd_try_alias(int *argc, char ***argv)
+char *
+cmd_get_alias(const char *name)
 {
-	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;
+	struct options_entry		*o;
+	struct options_array_item	*a;
+	union options_value		*ov;
+	size_t				 wanted, n;
+	const char			*equals;
 
 	o = options_get_only(global_options, "command-alias");
 	if (o == NULL)
-		return (-1);
-	wanted = strlen(old_argv[0]);
+		return (NULL);
+	wanted = strlen(name);
 
 	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;
+		ov = options_array_item_value(a);
+
+		equals = strchr(ov->string, '=');
+		if (equals != NULL) {
+			n = equals - ov->string;
+			if (n == wanted && strncmp(name, ov->string, n) == 0)
+				return (xstrdup(equals + 1));
 		}
+
 		a = options_array_next(a);
 	}
-	if (a == NULL)
-		return (-1);
+	return (NULL);
+}
 
-	if (cmd_string_split(cp + 1, &new_argc, &new_argv) != 0)
-		return (-1);
+static const struct cmd_entry *
+cmd_find(const char *name, char **cause)
+{
+	const struct cmd_entry	**loop, *entry, *found = NULL;
+	int			  ambiguous;
+	char			  s[8192];
 
-	*argc = new_argc + old_argc - 1;
-	*argv = xcalloc((*argc) + 1, sizeof **argv);
+	ambiguous = 0;
+	for (loop = cmd_table; *loop != NULL; loop++) {
+		entry = *loop;
+		if (entry->alias != NULL && strcmp(entry->alias, name) == 0) {
+			ambiguous = 0;
+			found = entry;
+			break;
+		}
 
-	for (i = 0; i < new_argc; i++)
-		(*argv)[i] = xstrdup(new_argv[i]);
-	for (i = 1; i < old_argc; i++)
-		(*argv)[new_argc + i - 1] = xstrdup(old_argv[i]);
+		if (strncmp(entry->name, name, strlen(name)) != 0)
+			continue;
+		if (found != NULL)
+			ambiguous = 1;
+		found = entry;
 
-	log_debug("alias: %s=%s", old_argv[0], cp + 1);
-	for (i = 0; i < *argc; i++)
-		log_debug("alias: argv[%d] = %s", i, (*argv)[i]);
+		if (strcmp(entry->name, name) == 0)
+			break;
+	}
+	if (ambiguous)
+		goto ambiguous;
+	if (found == NULL) {
+		xasprintf(cause, "unknown command: %s", name);
+		return (NULL);
+	}
+	return (found);
 
-	cmd_free_argv(new_argc, new_argv);
-	return (0);
+ambiguous:
+	*s = '\0';
+	for (loop = cmd_table; *loop != NULL; loop++) {
+		entry = *loop;
+		if (strncmp(entry->name, name, strlen(name)) != 0)
+			continue;
+		if (strlcat(s, entry->name, sizeof s) >= sizeof s)
+			break;
+		if (strlcat(s, ", ", sizeof s) >= sizeof s)
+			break;
+	}
+	s[strlen(s) - 2] = '\0';
+	xasprintf(cause, "ambiguous command: %s, could be: %s", name, s);
+	return (NULL);
 }
 
 struct cmd *
 cmd_parse(int argc, char **argv, const char *file, u_int line, char **cause)
 {
+	const struct cmd_entry	*entry;
 	const char		*name;
-	const struct cmd_entry **entryp, *entry;
 	struct cmd		*cmd;
 	struct args		*args;
-	char			 s[BUFSIZ];
-	int			 ambiguous, allocated = 0;
 
-	*cause = NULL;
 	if (argc == 0) {
 		xasprintf(cause, "no command");
 		return (NULL);
 	}
 	name = argv[0];
 
-retry:
-	ambiguous = 0;
-	entry = NULL;
-	for (entryp = cmd_table; *entryp != NULL; entryp++) {
-		if ((*entryp)->alias != NULL &&
-		    strcmp((*entryp)->alias, argv[0]) == 0) {
-			ambiguous = 0;
-			entry = *entryp;
-			break;
-		}
-
-		if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
-			continue;
-		if (entry != NULL)
-			ambiguous = 1;
-		entry = *entryp;
-
-		/* Bail now if an exact match. */
-		if (strcmp(entry->name, argv[0]) == 0)
-			break;
-	}
-	if ((ambiguous || entry == NULL) &&
-	    server_proc != NULL &&
-	    !allocated &&
-	    cmd_try_alias(&argc, &argv) == 0) {
-		allocated = 1;
-		goto retry;
-	}
-	if (ambiguous)
-		goto ambiguous;
-	if (entry == NULL) {
-		xasprintf(cause, "unknown command: %s", name);
+	entry = cmd_find(name, cause);
+	if (entry == NULL)
 		return (NULL);
-	}
-	cmd_log_argv(argc, argv, entry->name);
+	cmd_log_argv(argc, argv, "%s: %s", __func__, entry->name);
 
 	args = args_parse(entry->args.template, argc, argv);
 	if (args == NULL)
@@ -433,23 +463,11 @@ retry:
 		cmd->file = xstrdup(file);
 	cmd->line = line;
 
-	if (allocated)
-		cmd_free_argv(argc, argv);
-	return (cmd);
+	cmd->alias = NULL;
+	cmd->argc = argc;
+	cmd->argv = cmd_copy_argv(argc, argv);
 
-ambiguous:
-	*s = '\0';
-	for (entryp = cmd_table; *entryp != NULL; entryp++) {
-		if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
-			continue;
-		if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
-			break;
-		if (strlcat(s, ", ", sizeof s) >= sizeof s)
-			break;
-	}
-	s[strlen(s) - 2] = '\0';
-	xasprintf(cause, "ambiguous command: %s, could be: %s", name, s);
-	return (NULL);
+	return (cmd);
 
 usage:
 	if (args != NULL)
@@ -458,6 +476,18 @@ usage:
 	return (NULL);
 }
 
+void
+cmd_free(struct cmd *cmd)
+{
+	free(cmd->alias);
+	cmd_free_argv(cmd->argc, cmd->argv);
+
+	free(cmd->file);
+
+	args_free(cmd->args);
+	free(cmd);
+}
+
 char *
 cmd_print(struct cmd *cmd)
 {
@@ -473,6 +503,83 @@ cmd_print(struct cmd *cmd)
 	return (out);
 }
 
+struct cmd_list *
+cmd_list_new(void)
+{
+	struct cmd_list	*cmdlist;
+
+	cmdlist = xcalloc(1, sizeof *cmdlist);
+	cmdlist->references = 1;
+	cmdlist->group = cmd_list_next_group++;
+	TAILQ_INIT(&cmdlist->list);
+	return (cmdlist);
+}
+
+void
+cmd_list_append(struct cmd_list *cmdlist, struct cmd *cmd)
+{
+	cmd->group = cmdlist->group;
+	TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
+}
+
+void
+cmd_list_move(struct cmd_list *cmdlist, struct cmd_list *from)
+{
+	struct cmd	*cmd, *cmd1;
+
+	TAILQ_FOREACH_SAFE(cmd, &from->list, qentry, cmd1) {
+		TAILQ_REMOVE(&from->list, cmd, qentry);
+		TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
+	}
+	cmdlist->group = cmd_list_next_group++;
+}
+
+void
+cmd_list_free(struct cmd_list *cmdlist)
+{
+	struct cmd	*cmd, *cmd1;
+
+	if (--cmdlist->references != 0)
+		return;
+
+	TAILQ_FOREACH_SAFE(cmd, &cmdlist->list, qentry, cmd1) {
+		TAILQ_REMOVE(&cmdlist->list, cmd, qentry);
+		cmd_free(cmd);
+	}
+
+	free(cmdlist);
+}
+
+char *
+cmd_list_print(struct cmd_list *cmdlist, int escaped)
+{
+	struct cmd	*cmd;
+	char		*buf, *this;
+	size_t		 len;
+
+	len = 1;
+	buf = xcalloc(1, len);
+
+	TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
+		this = cmd_print(cmd);
+
+		len += strlen(this) + 4;
+		buf = xrealloc(buf, len);
+
+		strlcat(buf, this, len);
+		if (TAILQ_NEXT(cmd, qentry) != NULL) {
+			if (escaped)
+				strlcat(buf, " \\; ", len);
+			else
+				strlcat(buf, " ; ", len);
+		}
+
+		free(this);
+	}
+
+	return (buf);
+}
+
 /* Adjust current mouse position for a pane. */
 int
 cmd_mouse_at(struct window_pane *wp, struct mouse_event *m, u_int *xp,
@@ -481,17 +588,16 @@ cmd_mouse_at(struct window_pane *wp, struct mouse_event *m, u_int *xp,
 	u_int	x, y;
 
 	if (last) {
-		x = m->lx;
-		y = m->ly;
+		x = m->lx + m->ox;
+		y = m->ly + m->oy;
 	} else {
-		x = m->x;
-		y = m->y;
+		x = m->x + m->ox;
+		y = m->y + m->oy;
 	}
+	log_debug("%s: x=%u, y=%u%s", __func__, x, y, last ? " (last)" : "");
 
-	if (m->statusat == 0 && y > 0)
-		y--;
-	else if (m->statusat > 0 && y >= (u_int)m->statusat)
-		y = m->statusat - 1;
+	if (m->statusat == 0 && y >= m->statuslines)
+		y -= m->statuslines;
 
 	if (x < wp->xoff || x >= wp->xoff + wp->sx)
 		return (-1);
@@ -511,17 +617,22 @@ cmd_mouse_window(struct mouse_event *m, struct session **sp)
 {
 	struct session	*s;
 	struct window	*w;
+	struct winlink	*wl;
 
-	if (!m->valid || m->s == -1 || m->w == -1)
+	if (!m->valid)
 		return (NULL);
-	if ((s = session_find_by_id(m->s)) == NULL)
+	if (m->s == -1 || (s = session_find_by_id(m->s)) == NULL)
 		return (NULL);
-	if ((w = window_find_by_id(m->w)) == NULL)
-		return (NULL);
-
+	if (m->w == -1)
+		wl = s->curw;
+	else {
+		if ((w = window_find_by_id(m->w)) == NULL)
+			return (NULL);
+		wl = winlink_find_by_window(&s->windows, w);
+	}
 	if (sp != NULL)
 		*sp = s;
-	return (winlink_find_by_window(&s->windows, w));
+	return (wl);
 }
 
 /* Get current mouse pane if any. */
@@ -549,7 +660,7 @@ char *
 cmd_template_replace(const char *template, const char *s, int idx)
 {
 	char		 ch, *buf;
-	const char	*ptr, *cp, quote[] = "\"\\$";
+	const char	*ptr, *cp, quote[] = "\"\\$;~";
 	int		 replaced, quoted;
 	size_t		 len;
 
@@ -580,10 +691,6 @@ cmd_template_replace(const char *template, const char *s, int idx)
 			for (cp = s; *cp != '\0'; cp++) {
 				if (quoted && strchr(quote, *cp) != NULL)
 					buf[len++] = '\\';
-				if (quoted && *cp == ';') {
-					buf[len++] = '\\';
-					buf[len++] = '\\';
-				}
 				buf[len++] = *cp;
 			}
 			buf[len] = '\0';

colour.c

@@ -230,11 +230,85 @@ colour_fromstring(const char *s)
 	return (-1);
 }
 
-/* Convert 256 colour palette to 16. */
-u_char
-colour_256to16(u_char c)
+/* Convert 256 colour to RGB colour. */
+int
+colour_256toRGB(int c)
 {
-	static const u_char table[256] = {
+	static const int table[256] = {
+		0x000000, 0x800000, 0x008000, 0x808000,
+		0x000080, 0x800080, 0x008080, 0xc0c0c0,
+		0x808080, 0xff0000, 0x00ff00, 0xffff00,
+		0x0000ff, 0xff00ff, 0x00ffff, 0xffffff,
+		0x000000, 0x00005f, 0x000087, 0x0000af,
+		0x0000d7, 0x0000ff, 0x005f00, 0x005f5f,
+		0x005f87, 0x005faf, 0x005fd7, 0x005fff,
+		0x008700, 0x00875f, 0x008787, 0x0087af,
+		0x0087d7, 0x0087ff, 0x00af00, 0x00af5f,
+		0x00af87, 0x00afaf, 0x00afd7, 0x00afff,
+		0x00d700, 0x00d75f, 0x00d787, 0x00d7af,
+		0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f,
+		0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff,
+		0x5f0000, 0x5f005f, 0x5f0087, 0x5f00af,
+		0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f,
+		0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff,
+		0x5f8700, 0x5f875f, 0x5f8787, 0x5f87af,
+		0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f,
+		0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff,
+		0x5fd700, 0x5fd75f, 0x5fd787, 0x5fd7af,
+		0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f,
+		0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff,
+		0x870000, 0x87005f, 0x870087, 0x8700af,
+		0x8700d7, 0x8700ff, 0x875f00, 0x875f5f,
+		0x875f87, 0x875faf, 0x875fd7, 0x875fff,
+		0x878700, 0x87875f, 0x878787, 0x8787af,
+		0x8787d7, 0x8787ff, 0x87af00, 0x87af5f,
+		0x87af87, 0x87afaf, 0x87afd7, 0x87afff,
+		0x87d700, 0x87d75f, 0x87d787, 0x87d7af,
+		0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f,
+		0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff,
+		0xaf0000, 0xaf005f, 0xaf0087, 0xaf00af,
+		0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f,
+		0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff,
+		0xaf8700, 0xaf875f, 0xaf8787, 0xaf87af,
+		0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f,
+		0xafaf87, 0xafafaf, 0xafafd7, 0xafafff,
+		0xafd700, 0xafd75f, 0xafd787, 0xafd7af,
+		0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f,
+		0xafff87, 0xafffaf, 0xafffd7, 0xafffff,
+		0xd70000, 0xd7005f, 0xd70087, 0xd700af,
+		0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f,
+		0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff,
+		0xd78700, 0xd7875f, 0xd78787, 0xd787af,
+		0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f,
+		0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff,
+		0xd7d700, 0xd7d75f, 0xd7d787, 0xd7d7af,
+		0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f,
+		0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff,
+		0xff0000, 0xff005f, 0xff0087, 0xff00af,
+		0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f,
+		0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff,
+		0xff8700, 0xff875f, 0xff8787, 0xff87af,
+		0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f,
+		0xffaf87, 0xffafaf, 0xffafd7, 0xffafff,
+		0xffd700, 0xffd75f, 0xffd787, 0xffd7af,
+		0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f,
+		0xffff87, 0xffffaf, 0xffffd7, 0xffffff,
+		0x080808, 0x121212, 0x1c1c1c, 0x262626,
+		0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e,
+		0x585858, 0x626262, 0x6c6c6c, 0x767676,
+		0x808080, 0x8a8a8a, 0x949494, 0x9e9e9e,
+		0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6,
+		0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee
+	};
+
+	return (table[c & 0xff] | COLOUR_FLAG_RGB);
+}
+
+/* Convert 256 colour to 16 colour. */
+int
+colour_256to16(int c)
+{
+	static const char table[256] = {
 		 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 		 0,  4,  4,  4, 12, 12,  2,  6,  4,  4, 12, 12,  2,  2,  6,  4,
 		12, 12,  2,  2,  2,  6, 12, 12, 10, 10, 10, 10, 14, 12, 10, 10,
@@ -253,5 +327,5 @@ colour_256to16(u_char c)
 		 8,  8,  8,  8,  7,  7,  7,  7,  7,  7, 15, 15, 15, 15, 15, 15
 	};
 
-	return (table[c]);
+	return (table[c & 0xff]);
 }

compat.h

@@ -21,6 +21,7 @@
 #include <sys/ioctl.h>
 #include <sys/uio.h>
 
+#include <fnmatch.h>
 #include <limits.h>
 #include <stdio.h>
 #include <termios.h>
@@ -61,14 +62,34 @@ void	warn(const char *, ...);
 void	warnx(const char *, ...);
 #endif
 
-#ifndef HAVE_PATHS_H
-#define	_PATH_BSHELL	"/bin/sh"
-#define	_PATH_TMP	"/tmp/"
+#ifdef HAVE_PATHS_H
+#include <paths.h>
+#endif
+
+#ifndef _PATH_BSHELL
+#define _PATH_BSHELL	"/bin/sh"
+#endif
+
+#ifndef _PATH_TMP
+#define _PATH_TMP	"/tmp/"
+#endif
+
+#ifndef _PATH_DEVNULL
 #define _PATH_DEVNULL	"/dev/null"
+#endif
+
+#ifndef _PATH_TTY
 #define _PATH_TTY	"/dev/tty"
+#endif
+
+#ifndef _PATH_DEV
 #define _PATH_DEV	"/dev/"
 #endif
 
+#ifndef _PATH_DEFPATH
+#define _PATH_DEFPATH	"/usr/bin:/bin"
+#endif
+
 #ifndef __OpenBSD__
 #define pledge(s, p) (0)
 #endif
@@ -97,10 +118,6 @@ void	warnx(const char *, ...);
 #include "compat/bitstring.h"
 #endif
 
-#ifdef HAVE_PATHS_H
-#include <paths.h>
-#endif
-
 #ifdef HAVE_LIBUTIL_H
 #include <libutil.h>
 #endif
@@ -153,6 +170,14 @@ void	warnx(const char *, ...);
 #define O_DIRECTORY 0
 #endif
 
+#ifndef FNM_CASEFOLD
+#ifdef FNM_IGNORECASE
+#define FNM_CASEFOLD FNM_IGNORECASE
+#else
+#define FNM_CASEFOLD 0
+#endif
+#endif
+
 #ifndef INFTIM
 #define INFTIM -1
 #endif
@@ -312,10 +337,6 @@ int		 vasprintf(char **, const char *, va_list);
 char		*fgetln(FILE *, size_t *);
 #endif
 
-#ifndef HAVE_FPARSELN
-char		*fparseln(FILE *, size_t *, size_t *, const char *, int);
-#endif
-
 #ifndef HAVE_SETENV
 /* setenv.c */
 int		 setenv(const char *, const char *, int);
@@ -349,7 +370,6 @@ int		 utf8proc_mbtowc(wchar_t *, const char *, size_t);
 int		 utf8proc_wctomb(char *, wchar_t);
 #endif
 
-#ifndef HAVE_GETOPT
 /* getopt.c */
 extern int	BSDopterr;
 extern int	BSDoptind;
@@ -363,6 +383,5 @@ int	BSDgetopt(int, char *const *, const char *);
 #define optopt             BSDoptopt
 #define optreset           BSDoptreset
 #define optarg             BSDoptarg
-#endif
 
 #endif /* COMPAT_H */

compat/asprintf.c

@@ -19,8 +19,10 @@
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
+#include <stdlib.h>
 
 #include "compat.h"
+#include "xmalloc.h"
 
 int
 asprintf(char **ret, const char *fmt, ...)

compat/fparseln.c

@@ -1,221 +0,0 @@
-/*	$OpenBSD: fparseln.c,v 1.6 2005/08/02 21:46:23 espie Exp $	*/
-/*	$NetBSD: fparseln.c,v 1.7 1999/07/02 15:49:12 simonb Exp $	*/
-
-/*
- * Copyright (c) 1997 Christos Zoulas.  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.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by Christos Zoulas.
- * 4. 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 ``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 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.
- */
-
-/* OPENBSD ORIGINAL: lib/libutil/fparseln.c */
-
-#include <sys/types.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "compat.h"
-
-/*
- * fparseln() specific operation flags.
- */
-#define FPARSELN_UNESCESC       0x01
-#define FPARSELN_UNESCCONT      0x02
-#define FPARSELN_UNESCCOMM      0x04
-#define FPARSELN_UNESCREST      0x08
-#define FPARSELN_UNESCALL       0x0f
-
-static int isescaped(const char *, const char *, int);
-
-/* isescaped():
- *	Return true if the character in *p that belongs to a string
- *	that starts in *sp, is escaped by the escape character esc.
- */
-static int
-isescaped(const char *sp, const char *p, int esc)
-{
-	const char     *cp;
-	size_t		ne;
-
-	/* No escape character */
-	if (esc == '\0')
-		return 1;
-
-	/* Count the number of escape characters that precede ours */
-	for (ne = 0, cp = p; --cp >= sp && *cp == esc; ne++)
-		continue;
-
-	/* Return true if odd number of escape characters */
-	return (ne & 1) != 0;
-}
-
-
-/* fparseln():
- *	Read a line from a file parsing continuations ending in \
- *	and eliminating trailing newlines, or comments starting with
- *	the comment char.
- */
-char *
-fparseln(FILE *fp, size_t *size, size_t *lineno, const char str[3],
-    int flags)
-{
-	static const char dstr[3] = { '\\', '\\', '#' };
-	char	*buf = NULL, *ptr, *cp, esc, con, nl, com;
-	size_t	s, len = 0;
-	int	cnt = 1;
-
-	if (str == NULL)
-		str = dstr;
-
-	esc = str[0];
-	con = str[1];
-	com = str[2];
-
-	/*
-	 * XXX: it would be cool to be able to specify the newline character,
-	 * but unfortunately, fgetln does not let us
-	 */
-	nl  = '\n';
-
-	while (cnt) {
-		cnt = 0;
-
-		if (lineno)
-			(*lineno)++;
-
-		if ((ptr = fgetln(fp, &s)) == NULL)
-			break;
-
-		if (s && com) {		/* Check and eliminate comments */
-			for (cp = ptr; cp < ptr + s; cp++)
-				if (*cp == com && !isescaped(ptr, cp, esc)) {
-					s = cp - ptr;
-					cnt = s == 0 && buf == NULL;
-					break;
-				}
-		}
-
-		if (s && nl) {		/* Check and eliminate newlines */
-			cp = &ptr[s - 1];
-
-			if (*cp == nl)
-				s--;	/* forget newline */
-		}
-
-		if (s && con) {		/* Check and eliminate continuations */
-			cp = &ptr[s - 1];
-
-			if (*cp == con && !isescaped(ptr, cp, esc)) {
-				s--;	/* forget escape */
-				cnt = 1;
-			}
-		}
-
-		if (s == 0 && buf != NULL)
-			continue;
-
-		if ((cp = realloc(buf, len + s + 1)) == NULL) {
-			free(buf);
-			return NULL;
-		}
-		buf = cp;
-
-		(void) memcpy(buf + len, ptr, s);
-		len += s;
-		buf[len] = '\0';
-	}
-
-	if ((flags & FPARSELN_UNESCALL) != 0 && esc && buf != NULL &&
-	    strchr(buf, esc) != NULL) {
-		ptr = cp = buf;
-		while (cp[0] != '\0') {
-			int skipesc;
-
-			while (cp[0] != '\0' && cp[0] != esc)
-				*ptr++ = *cp++;
-			if (cp[0] == '\0' || cp[1] == '\0')
-				break;
-
-			skipesc = 0;
-			if (cp[1] == com)
-				skipesc += (flags & FPARSELN_UNESCCOMM);
-			if (cp[1] == con)
-				skipesc += (flags & FPARSELN_UNESCCONT);
-			if (cp[1] == esc)
-				skipesc += (flags & FPARSELN_UNESCESC);
-			if (cp[1] != com && cp[1] != con && cp[1] != esc)
-				skipesc = (flags & FPARSELN_UNESCREST);
-
-			if (skipesc)
-				cp++;
-			else
-				*ptr++ = *cp++;
-			*ptr++ = *cp++;
-		}
-		*ptr = '\0';
-		len = strlen(buf);
-	}
-
-	if (size)
-		*size = len;
-	return buf;
-}
-
-#ifdef TEST
-
-int main(int, char **);
-
-int
-main(argc, argv)
-	int argc;
-	char **argv;
-{
-	char   *ptr;
-	size_t	size, line;
-
-	line = 0;
-	while ((ptr = fparseln(stdin, &size, &line, NULL,
-	    FPARSELN_UNESCALL)) != NULL)
-		printf("line %d (%d) |%s|\n", line, size, ptr);
-	return 0;
-}
-
-/*
-
-# This is a test
-line 1
-line 2 \
-line 3 # Comment
-line 4 \# Not comment \\\\
-
-# And a comment \
-line 5 \\\
-line 6
-
-*/
-
-#endif /* TEST */

configure.ac

@@ -1,6 +1,6 @@
 # configure.ac
 
-AC_INIT([tmux], 2.9a)
+AC_INIT([tmux], 3.1c)
 AC_PREREQ([2.60])
 
 AC_CONFIG_AUX_DIR(etc)
@@ -28,6 +28,7 @@ AC_PROG_CC_C99
 AC_PROG_CPP
 AC_PROG_EGREP
 AC_PROG_INSTALL
+AC_PROG_YACC
 PKG_PROG_PKG_CONFIG
 AC_USE_SYSTEM_EXTENSIONS
 
@@ -124,6 +125,12 @@ AC_FUNC_STRNLEN
 # Look for clock_gettime. Must come before event_init.
 AC_SEARCH_LIBS(clock_gettime, rt)
 
+# Always use our getopt because 1) glibc's doesn't enforce argument order 2)
+# musl does not set optarg to NULL for flags without arguments (although it is
+# not required to, but it is helpful) 3) there are probably other weird
+# implementations.
+AC_LIBOBJ(getopt)
+
 # Look for libevent.
 PKG_CHECK_MODULES(
 	LIBEVENT,
@@ -423,48 +430,6 @@ else
 	AC_LIBOBJ(unvis)
 fi
 
-# Look for getopt. glibc's getopt does not enforce argument order and the ways
-# of making it do so are stupid, so just use our own instead.
-AC_CHECK_FUNC(getopt, found_getopt=yes, found_getopt=no)
-if test "x$found_getopt" != xno; then
-	AC_MSG_CHECKING(if getopt is suitable)
-	AC_EGREP_CPP(
-		yes,
-		[
-			#include <features.h>
-			#ifdef __GLIBC__
-			yes
-			#endif
-		],
-		[
-			found_getopt=no
-			AC_MSG_RESULT(no)
-		],
-		AC_MSG_RESULT(yes))
-fi
-if test "x$found_getopt" != xno; then
-	AC_CHECK_DECLS(
-		[optarg, optind, optreset],
-		,
-		found_getopt=no,
-		[
-			#include <unistd.h>
-		])
-fi
-if test "x$found_getopt" != xno; then
-	AC_DEFINE(HAVE_GETOPT)
-else
-	AC_LIBOBJ(getopt)
-fi
-
-# Look for fparseln in libutil.
-AC_SEARCH_LIBS(fparseln, util, found_fparseln=yes, found_fparseln=no)
-if test "x$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

control-notify.c

@@ -28,18 +28,16 @@
 
 void
 control_notify_input(struct client *c, struct window_pane *wp,
-    struct evbuffer *input)
+    const u_char *buf, size_t len)
 {
-	u_char		*buf;
-	size_t		 len;
 	struct evbuffer *message;
 	u_int		 i;
 
 	if (c->session == NULL)
 	    return;
 
-	buf = EVBUFFER_DATA(input);
-	len = EVBUFFER_LENGTH(input);
+	if (c->flags & CLIENT_CONTROL_NOOUTPUT)
+		return;
 
 	/*
 	 * Only write input if the window pane is linked to a window belonging
@@ -56,7 +54,8 @@ control_notify_input(struct client *c, struct window_pane *wp,
 			else
 			    evbuffer_add_printf(message, "%c", buf[i]);
 		}
-		control_write_buffer(c, message);
+		evbuffer_add(message, "", 1);
+		control_write(c, "%s", EVBUFFER_DATA(message));
 		evbuffer_free(message);
 	}
 }

control.c

@@ -30,23 +30,12 @@
 void
 control_write(struct client *c, const char *fmt, ...)
 {
-	va_list		 ap;
+	va_list	ap;
 
 	va_start(ap, fmt);
-	evbuffer_add_vprintf(c->stdout_data, fmt, ap);
+	file_vprint(c, fmt, ap);
+	file_print(c, "\n");
 	va_end(ap);
-
-	evbuffer_add(c->stdout_data, "\n", 1);
-	server_client_push_stdout(c);
-}
-
-/* Write a buffer, adding a terminal newline. Empties buffer. */
-void
-control_write_buffer(struct client *c, struct evbuffer *buffer)
-{
-	evbuffer_add_buffer(c->stdout_data, buffer);
-	evbuffer_add(c->stdout_data, "\n", 1);
-	server_client_push_stdout(c);
 }
 
 /* Control error callback. */
@@ -65,38 +54,53 @@ control_error(struct cmdq_item *item, void *data)
 }
 
 /* Control input callback. Read lines and fire commands. */
-void
-control_callback(struct client *c, int closed, __unused void *data)
+static void
+control_callback(__unused struct client *c, __unused const char *path,
+    int error, int closed, struct evbuffer *buffer, __unused void *data)
 {
-	char			*line, *cause;
-	struct cmd_list		*cmdlist;
-	struct cmd		*cmd;
+	char			*line;
 	struct cmdq_item	*item;
+	struct cmd_parse_result	*pr;
 
-	if (closed)
+	if (closed || error != 0)
 		c->flags |= CLIENT_EXIT;
 
 	for (;;) {
-		line = evbuffer_readln(c->stdin_data, NULL, EVBUFFER_EOL_LF);
+		line = evbuffer_readln(buffer, NULL, EVBUFFER_EOL_LF);
 		if (line == NULL)
 			break;
+		log_debug("%s: %s", __func__, line);
 		if (*line == '\0') { /* empty line exit */
+			free(line);
 			c->flags |= CLIENT_EXIT;
 			break;
 		}
 
-		cmdlist = cmd_string_parse(line, NULL, 0, &cause);
-		if (cmdlist == NULL) {
-			item = cmdq_get_callback(control_error, cause);
+		pr = cmd_parse_from_string(line, NULL);
+		switch (pr->status) {
+		case CMD_PARSE_EMPTY:
+			break;
+		case CMD_PARSE_ERROR:
+			item = cmdq_get_callback(control_error, pr->error);
 			cmdq_append(c, item);
-		} else {
-			TAILQ_FOREACH(cmd, &cmdlist->list, qentry)
-				cmd->flags |= CMD_CONTROL;
-			item = cmdq_get_command(cmdlist, NULL, NULL, 0);
+			break;
+		case CMD_PARSE_SUCCESS:
+			item = cmdq_get_command(pr->cmdlist, NULL, NULL, 0);
+			item->shared->flags |= CMDQ_SHARED_CONTROL;
 			cmdq_append(c, item);
-			cmd_list_free(cmdlist);
+			cmd_list_free(pr->cmdlist);
+			break;
 		}
 
 		free(line);
 	}
 }
+
+void
+control_start(struct client *c)
+{
+	file_read(c, "-", control_callback, c);
+
+	if (c->flags & CLIENT_CONTROLCONTROL)
+		file_print(c, "\033P1000p");
+}

environ.c

@@ -177,20 +177,16 @@ environ_update(struct options *oo, struct environ *src, struct environ *dst)
 	struct environ_entry		*envent;
 	struct options_entry		*o;
 	struct options_array_item	*a;
-	const char			*value;
+	union options_value		*ov;
 
 	o = options_get(oo, "update-environment");
 	if (o == NULL)
 		return;
 	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);
+		ov = options_array_item_value(a);
+		if ((envent = environ_find(src, ov->string)) == NULL)
+			environ_clear(dst, ov->string);
 		else
 			environ_set(dst, envent->name, "%s", envent->value);
 		a = options_array_next(a);

example_tmux.conf

@@ -6,7 +6,7 @@
 
 # Some tweaks to the status line
 set -g status-right "%H:%M"
-set -g window-status-current-attr "underscore"
+set -g window-status-current-style "underscore"
 
 # If running inside tmux ($TMUX is set), then change the status line to red
 %if #{TMUX}

file.c

@@ -0,0 +1,413 @@
+/* $OpenBSD$ */
+
+/*
+ * 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 <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "tmux.h"
+
+static int	file_next_stream = 3;
+
+RB_GENERATE(client_files, client_file, entry, file_cmp);
+
+static char *
+file_get_path(struct client *c, const char *file)
+{
+	char	*path;
+
+	if (*file == '/')
+		path = xstrdup(file);
+	else
+		xasprintf(&path, "%s/%s", server_client_get_cwd(c, NULL), file);
+	return (path);
+}
+
+int
+file_cmp(struct client_file *cf1, struct client_file *cf2)
+{
+	if (cf1->stream < cf2->stream)
+		return (-1);
+	if (cf1->stream > cf2->stream)
+		return (1);
+	return (0);
+}
+
+struct client_file *
+file_create(struct client *c, int stream, client_file_cb cb, void *cbdata)
+{
+	struct client_file	*cf;
+
+	cf = xcalloc(1, sizeof *cf);
+	cf->c = c;
+	cf->references = 1;
+	cf->stream = stream;
+
+	cf->buffer = evbuffer_new();
+	if (cf->buffer == NULL)
+		fatalx("out of memory");
+
+	cf->cb = cb;
+	cf->data = cbdata;
+
+	if (cf->c != NULL) {
+		RB_INSERT(client_files, &cf->c->files, cf);
+		cf->c->references++;
+	}
+
+	return (cf);
+}
+
+void
+file_free(struct client_file *cf)
+{
+	if (--cf->references != 0)
+		return;
+
+	evbuffer_free(cf->buffer);
+	free(cf->path);
+
+	if (cf->c != NULL) {
+		RB_REMOVE(client_files, &cf->c->files, cf);
+		server_client_unref(cf->c);
+	}
+	free(cf);
+}
+
+static void
+file_fire_done_cb(__unused int fd, __unused short events, void *arg)
+{
+	struct client_file	*cf = arg;
+	struct client		*c = cf->c;
+
+	if (cf->cb != NULL && (c == NULL || (~c->flags & CLIENT_DEAD)))
+		cf->cb(c, cf->path, cf->error, 1, cf->buffer, cf->data);
+	file_free(cf);
+}
+
+void
+file_fire_done(struct client_file *cf)
+{
+	event_once(-1, EV_TIMEOUT, file_fire_done_cb, cf, NULL);
+}
+
+void
+file_fire_read(struct client_file *cf)
+{
+	struct client	*c = cf->c;
+
+	if (cf->cb != NULL)
+		cf->cb(c, cf->path, cf->error, 0, cf->buffer, cf->data);
+}
+
+int
+file_can_print(struct client *c)
+{
+	if (c == NULL)
+		return (0);
+	if (c->session != NULL && (~c->flags & CLIENT_CONTROL))
+		return (0);
+	return (1);
+}
+
+void
+file_print(struct client *c, const char *fmt, ...)
+{
+	va_list	ap;
+
+	va_start(ap, fmt);
+	file_vprint(c, fmt, ap);
+	va_end(ap);
+}
+
+void
+file_vprint(struct client *c, const char *fmt, va_list ap)
+{
+	struct client_file	 find, *cf;
+	struct msg_write_open	 msg;
+
+	if (!file_can_print(c))
+		return;
+
+	find.stream = 1;
+	if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL) {
+		cf = file_create(c, 1, NULL, NULL);
+		cf->path = xstrdup("-");
+
+		evbuffer_add_vprintf(cf->buffer, fmt, ap);
+
+		msg.stream = 1;
+		msg.fd = STDOUT_FILENO;
+		msg.flags = 0;
+		proc_send(c->peer, MSG_WRITE_OPEN, -1, &msg, sizeof msg);
+	} else {
+		evbuffer_add_vprintf(cf->buffer, fmt, ap);
+		file_push(cf);
+	}
+}
+
+void
+file_print_buffer(struct client *c, void *data, size_t size)
+{
+	struct client_file	 find, *cf;
+	struct msg_write_open	 msg;
+
+	if (!file_can_print(c))
+		return;
+
+	find.stream = 1;
+	if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL) {
+		cf = file_create(c, 1, NULL, NULL);
+		cf->path = xstrdup("-");
+
+		evbuffer_add(cf->buffer, data, size);
+
+		msg.stream = 1;
+		msg.fd = STDOUT_FILENO;
+		msg.flags = 0;
+		proc_send(c->peer, MSG_WRITE_OPEN, -1, &msg, sizeof msg);
+	} else {
+		evbuffer_add(cf->buffer, data, size);
+		file_push(cf);
+	}
+}
+
+void
+file_error(struct client *c, const char *fmt, ...)
+{
+	struct client_file	 find, *cf;
+	struct msg_write_open	 msg;
+	va_list			 ap;
+
+	if (!file_can_print(c))
+		return;
+
+	va_start(ap, fmt);
+
+	find.stream = 2;
+	if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL) {
+		cf = file_create(c, 2, NULL, NULL);
+		cf->path = xstrdup("-");
+
+		evbuffer_add_vprintf(cf->buffer, fmt, ap);
+
+		msg.stream = 2;
+		msg.fd = STDERR_FILENO;
+		msg.flags = 0;
+		proc_send(c->peer, MSG_WRITE_OPEN, -1, &msg, sizeof msg);
+	} else {
+		evbuffer_add_vprintf(cf->buffer, fmt, ap);
+		file_push(cf);
+	}
+
+	va_end(ap);
+}
+
+void
+file_write(struct client *c, const char *path, int flags, const void *bdata,
+    size_t bsize, client_file_cb cb, void *cbdata)
+{
+	struct client_file	*cf;
+	FILE			*f;
+	struct msg_write_open	*msg;
+	size_t			 msglen;
+	int			 fd = -1;
+	const char		*mode;
+
+	if (strcmp(path, "-") == 0) {
+		cf = file_create(c, file_next_stream++, cb, cbdata);
+		cf->path = xstrdup("-");
+
+		fd = STDOUT_FILENO;
+		if (c == NULL || c->flags & CLIENT_ATTACHED) {
+			cf->error = EBADF;
+			goto done;
+		}
+		goto skip;
+	}
+
+	cf = file_create(c, file_next_stream++, cb, cbdata);
+	cf->path = file_get_path(c, path);
+
+	if (c == NULL || c->flags & CLIENT_ATTACHED) {
+		if (flags & O_APPEND)
+			mode = "ab";
+		else
+			mode = "wb";
+		f = fopen(cf->path, mode);
+		if (f == NULL) {
+			cf->error = errno;
+			goto done;
+		}
+		if (fwrite(bdata, 1, bsize, f) != bsize) {
+			fclose(f);
+			cf->error = EIO;
+			goto done;
+		}
+		fclose(f);
+		goto done;
+	}
+
+skip:
+	evbuffer_add(cf->buffer, bdata, bsize);
+
+	msglen = strlen(cf->path) + 1 + sizeof *msg;
+	if (msglen > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
+		cf->error = E2BIG;
+		goto done;
+	}
+	msg = xmalloc(msglen);
+	msg->stream = cf->stream;
+	msg->fd = fd;
+	msg->flags = flags;
+	memcpy(msg + 1, cf->path, msglen - sizeof *msg);
+	if (proc_send(c->peer, MSG_WRITE_OPEN, -1, msg, msglen) != 0) {
+		free(msg);
+		cf->error = EINVAL;
+		goto done;
+	}
+	free(msg);
+	return;
+
+done:
+	file_fire_done(cf);
+}
+
+void
+file_read(struct client *c, const char *path, client_file_cb cb, void *cbdata)
+{
+	struct client_file	*cf;
+	FILE			*f;
+	struct msg_read_open	*msg;
+	size_t			 msglen, size;
+	int			 fd = -1;
+	char			 buffer[BUFSIZ];
+
+	if (strcmp(path, "-") == 0) {
+		cf = file_create(c, file_next_stream++, cb, cbdata);
+		cf->path = xstrdup("-");
+
+		fd = STDIN_FILENO;
+		if (c == NULL || c->flags & CLIENT_ATTACHED) {
+			cf->error = EBADF;
+			goto done;
+		}
+		goto skip;
+	}
+
+	cf = file_create(c, file_next_stream++, cb, cbdata);
+	cf->path = file_get_path(c, path);
+
+	if (c == NULL || c->flags & CLIENT_ATTACHED) {
+		f = fopen(cf->path, "rb");
+		if (f == NULL) {
+			cf->error = errno;
+			goto done;
+		}
+		for (;;) {
+			size = fread(buffer, 1, sizeof buffer, f);
+			if (evbuffer_add(cf->buffer, buffer, size) != 0) {
+				cf->error = ENOMEM;
+				goto done;
+			}
+			if (size != sizeof buffer)
+				break;
+		}
+		if (ferror(f)) {
+			cf->error = EIO;
+			goto done;
+		}
+		fclose(f);
+		goto done;
+	}
+
+skip:
+	msglen = strlen(cf->path) + 1 + sizeof *msg;
+	if (msglen > MAX_IMSGSIZE - IMSG_HEADER_SIZE) {
+		cf->error = E2BIG;
+		goto done;
+	}
+	msg = xmalloc(msglen);
+	msg->stream = cf->stream;
+	msg->fd = fd;
+	memcpy(msg + 1, cf->path, msglen - sizeof *msg);
+	if (proc_send(c->peer, MSG_READ_OPEN, -1, msg, msglen) != 0) {
+		free(msg);
+		cf->error = EINVAL;
+		goto done;
+	}
+	free(msg);
+	return;
+
+done:
+	file_fire_done(cf);
+}
+
+static void
+file_push_cb(__unused int fd, __unused short events, void *arg)
+{
+	struct client_file	*cf = arg;
+	struct client		*c = cf->c;
+
+	if (~c->flags & CLIENT_DEAD)
+		file_push(cf);
+	file_free(cf);
+}
+
+void
+file_push(struct client_file *cf)
+{
+	struct client		*c = cf->c;
+	struct msg_write_data	*msg;
+	size_t			 msglen, sent, left;
+	struct msg_write_close	 close;
+
+	msg = xmalloc(sizeof *msg);
+	left = EVBUFFER_LENGTH(cf->buffer);
+	while (left != 0) {
+		sent = left;
+		if (sent > MAX_IMSGSIZE - IMSG_HEADER_SIZE - sizeof *msg)
+			sent = MAX_IMSGSIZE - IMSG_HEADER_SIZE - sizeof *msg;
+
+		msglen = (sizeof *msg) + sent;
+		msg = xrealloc(msg, msglen);
+		msg->stream = cf->stream;
+		memcpy(msg + 1, EVBUFFER_DATA(cf->buffer), sent);
+		if (proc_send(c->peer, MSG_WRITE, -1, msg, msglen) != 0)
+			break;
+		evbuffer_drain(cf->buffer, sent);
+
+		left = EVBUFFER_LENGTH(cf->buffer);
+		log_debug("%s: file %d sent %zu, left %zu", c->name, cf->stream,
+		    sent, left);
+	}
+	if (left != 0) {
+		cf->references++;
+		event_once(-1, EV_TIMEOUT, file_push_cb, cf, NULL);
+	} else if (cf->stream > 2) {
+		close.stream = cf->stream;
+		proc_send(c->peer, MSG_WRITE_CLOSE, -1, &close, sizeof close);
+		file_fire_done(cf);
+	}
+	free(msg);
+}

format-draw.c

@@ -142,7 +142,8 @@ format_draw_put_list(struct screen_write_ctx *octx,
 		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_cursormove(octx, ocx + offset + width -
+		    list_right->cx, ocy, 0);
 		screen_write_fast_copy(octx, list_right, 0, 0, list_right->cx,
 		    1);
 		width -= list_right->cx;
@@ -345,12 +346,6 @@ format_draw_centre(struct screen_write_ctx *octx, u_int available, u_int ocx,
 	/* 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,
@@ -374,10 +369,10 @@ format_draw_centre(struct screen_write_ctx *octx, u_int available, u_int ocx,
 
 	/*
 	 * Write after at
-	 *     middle + width_list / 2 - width_centre.
+	 *     middle - width_list / 2 + width_list
 	 */
 	format_draw_put(octx, ocx, ocy, after, frs,
-	    middle + width_list / 2,
+	    middle - width_list / 2 + width_list,
 	    0,
 	    width_after);
 
@@ -517,9 +512,10 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 	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;
+	int			 list_state = -1, fill = -1;
 	enum style_align	 list_align = STYLE_ALIGN_DEFAULT;
-	struct style		 sy;
+	struct grid_cell	 gc, current_default;
+	struct style		 sy, saved_sy;
 	struct utf8_data	*ud = &sy.gc.data;
 	const char		*cp, *end;
 	enum utf8_state		 more;
@@ -528,7 +524,8 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 	struct format_ranges	 frs;
 	struct style_range	*sr;
 
-	style_set(&sy, base);
+	memcpy(&current_default, base, sizeof current_default);
+	style_set(&sy, &current_default);
 	TAILQ_INIT(&frs);
 	log_debug("%s: %s", __func__, expanded);
 
@@ -540,7 +537,7 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 	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);
+		screen_write_clearendofline(&ctx[i], current_default.bg);
 		width[i] = 0;
 	}
 
@@ -570,7 +567,7 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 				cp++;
 			}
 
-			/* Draw the cell to th current screen. */
+			/* Draw the cell to the current screen. */
 			screen_write_cell(&ctx[current], &sy.gc);
 			width[current] += ud->width;
 			continue;
@@ -586,7 +583,8 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 			goto out;
 		}
 		tmp = xstrndup(cp + 2, end - (cp + 2));
-		if (style_parse(&sy, base, tmp) != 0) {
+		style_copy(&saved_sy, &sy);
+		if (style_parse(&sy, &current_default, tmp) != 0) {
 			log_debug("%s: invalid style '%s'", __func__, tmp);
 			free(tmp);
 			cp = end + 1;
@@ -596,6 +594,19 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 		    style_tostring(&sy));
 		free(tmp);
 
+		/* If this style has a fill colour, store it for later. */
+		if (sy.fill != 8)
+			fill = sy.fill;
+
+		/* If this style pushed or popped the default, update it. */
+		if (sy.default_type == STYLE_DEFAULT_PUSH) {
+			memcpy(&current_default, &saved_sy.gc, sizeof current_default);
+			sy.default_type = STYLE_DEFAULT_BASE;
+		} else if (sy.default_type == STYLE_DEFAULT_POP) {
+			memcpy(&current_default, base, sizeof current_default);
+			sy.default_type = STYLE_DEFAULT_BASE;
+		}
+
 		/* Check the list state. */
 		switch (sy.list) {
 		case STYLE_LIST_ON:
@@ -717,6 +728,14 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 		    fr->argument, names[fr->index], fr->start, fr->end);
 	}
 
+	/* Clear the available area. */
+	if (fill != -1) {
+		memcpy(&gc, &grid_default_cell, sizeof gc);
+		gc.bg = fill;
+		for (i = 0; i < available; i++)
+			screen_write_putc(octx, &gc, ' ');
+	}
+
 	/*
 	 * Draw the screens. How they are arranged depends on where the list
 	 * appearsq.
@@ -797,7 +816,8 @@ format_width(const char *expanded)
 		} else if (*cp > 0x1f && *cp < 0x7f) {
 			width++;
 			cp++;
-		}
+		} else
+			cp++;
 	}
 	return (width);
 }
@@ -830,8 +850,10 @@ format_trim_left(const char *expanded, u_int limit)
 					out += ud.size;
 				}
 				width += ud.width;
-			} else
+			} else {
 				cp -= ud.have;
+				cp++;
+			}
 		} else if (*cp > 0x1f && *cp < 0x7f) {
 			if (width + 1 <= limit)
 				*out++ = *cp;
@@ -877,8 +899,10 @@ format_trim_right(const char *expanded, u_int limit)
 					out += ud.size;
 				}
 				width += ud.width;
-			} else
+			} else {
 				cp -= ud.have;
+				cp++;
+			}
 		} else if (*cp > 0x1f && *cp < 0x7f) {
 			if (width >= skip)
 				*out++ = *cp;

grid.c

@@ -37,12 +37,12 @@
 
 /* Default grid cell data. */
 const struct grid_cell grid_default_cell = {
-	0, 0, 8, 8, { { ' ' }, 0, 1, 1 }
+	{ { ' ' }, 0, 1, 1 }, 0, 0, 8, 8, 0
 };
 
 /* Cleared grid cell data. */
 const struct grid_cell grid_cleared_cell = {
-	GRID_FLAG_CLEARED, 0, 8, 8, { { ' ' }, 0, 1, 1 }
+	{ { ' ' }, 0, 1, 1 }, 0, GRID_FLAG_CLEARED, 8, 8, 0
 };
 static const struct grid_cell_entry grid_cleared_entry = {
 	GRID_FLAG_CLEARED, { .data = { 0, 8, 8, ' ' } }
@@ -82,6 +82,8 @@ grid_need_extended_cell(const struct grid_cell_entry *gce,
 		return (1);
 	if ((gc->fg & COLOUR_FLAG_RGB) || (gc->bg & COLOUR_FLAG_RGB))
 		return (1);
+	if (gc->us != 0) /* only supports 256 or RGB */
+		return (1);
 	return (0);
 }
 
@@ -184,23 +186,25 @@ grid_clear_cell(struct grid *gd, u_int px, u_int py, u_int bg)
 	struct grid_cell	*gc;
 
 	memcpy(gce, &grid_cleared_entry, sizeof *gce);
-	if (bg & COLOUR_FLAG_RGB) {
-		grid_get_extended_cell(gl, gce, gce->flags);
-		gl->flags |= GRID_LINE_EXTENDED;
+	if (bg != 8) {
+		if (bg & COLOUR_FLAG_RGB) {
+			grid_get_extended_cell(gl, gce, gce->flags);
+			gl->flags |= GRID_LINE_EXTENDED;
 
-		gc = &gl->extddata[gce->offset];
-		memcpy(gc, &grid_cleared_cell, sizeof *gc);
-		gc->bg = bg;
-	} else {
-		if (bg & COLOUR_FLAG_256)
-			gce->flags |= GRID_FLAG_BG256;
-		gce->data.bg = bg;
+			gc = &gl->extddata[gce->offset];
+			memcpy(gc, &grid_cleared_cell, sizeof *gc);
+			gc->bg = bg;
+		} else {
+			if (bg & COLOUR_FLAG_256)
+				gce->flags |= GRID_FLAG_BG256;
+			gce->data.bg = bg;
+		}
 	}
 }
 
 /* Check grid y position. */
 static int
-grid_check_y(struct grid *gd, const char* from, u_int py)
+grid_check_y(struct grid *gd, const char *from, u_int py)
 {
 	if (py >= gd->hsize + gd->sy) {
 		log_debug("%s: y out of range: %u", from, py);
@@ -473,6 +477,7 @@ grid_get_cell1(struct grid_line *gl, u_int px, struct grid_cell *gc)
 	gc->bg = gce->data.bg;
 	if (gce->flags & GRID_FLAG_BG256)
 		gc->bg |= COLOUR_FLAG_256;
+	gc->us = 0;
 	utf8_set(&gc->data, gce->data.data);
 }
 
@@ -544,7 +549,7 @@ void
 grid_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny, u_int bg)
 {
 	struct grid_line	*gl;
-	u_int			 xx, yy;
+	u_int			 xx, yy, ox, sx;
 
 	if (nx == 0 || ny == 0)
 		return;
@@ -561,16 +566,20 @@ grid_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny, u_int bg)
 
 	for (yy = py; yy < py + ny; yy++) {
 		gl = &gd->linedata[yy];
-		if (px + nx >= gd->sx && px < gl->cellused)
-			gl->cellused = px;
-		if (px > gl->cellsize && COLOUR_DEFAULT(bg))
-			continue;
-		if (px + nx >= gl->cellsize && COLOUR_DEFAULT(bg)) {
-			gl->cellsize = px;
-			continue;
+
+		sx = gd->sx;
+		if (sx > gl->cellsize)
+			sx = gl->cellsize;
+		ox = nx;
+		if (COLOUR_DEFAULT(bg)) {
+			if (px > sx)
+				continue;
+			if (px + nx > sx)
+				ox = sx - px;
 		}
-		grid_expand_line(gd, yy, px + nx, 8); /* default bg first */
-		for (xx = px; xx < px + nx; xx++)
+
+		grid_expand_line(gd, yy, px + ox, 8); /* default bg first */
+		for (xx = px; xx < px + ox; xx++)
 			grid_clear_cell(gd, xx, yy, bg);
 	}
 }
@@ -790,6 +799,7 @@ grid_string_cells_code(const struct grid_cell *lastgc,
 		{ GRID_ATTR_UNDERSCORE_3, 43 },
 		{ GRID_ATTR_UNDERSCORE_4, 44 },
 		{ GRID_ATTR_UNDERSCORE_5, 45 },
+		{ GRID_ATTR_OVERLINE, 53 },
 	};
 	n = 0;
 
@@ -1349,3 +1359,22 @@ grid_unwrap_position(struct grid *gd, u_int *px, u_int *py, u_int wx, u_int wy)
 	*px = wx;
 	*py = yy;
 }
+
+/* Get length of line. */
+u_int
+grid_line_length(struct grid *gd, u_int py)
+{
+	struct grid_cell	gc;
+	u_int			px;
+
+	px = grid_get_line(gd, py)->cellsize;
+	if (px > gd->sx)
+		px = gd->sx;
+	while (px > 0) {
+		grid_get_cell(gd, px - 1, py, &gc);
+		if (gc.data.size != 1 || *gc.data.data != ' ')
+			break;
+		px--;
+	}
+	return (px);
+}

hooks.c

@@ -1,173 +0,0 @@
-/* $OpenBSD$ */
-
-/*
- * Copyright (c) 2012 Thomas Adam <thomas@xteddy.org>
- *
- * 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"
-
-struct hooks {
-	RB_HEAD(hooks_tree, hook) tree;
-	struct hooks	*parent;
-};
-
-static int	hooks_cmp(struct hook *, struct hook *);
-RB_GENERATE_STATIC(hooks_tree, hook, entry, hooks_cmp);
-
-static struct hook	*hooks_find1(struct hooks *, const char *);
-static void		 hooks_free1(struct hooks *, struct hook *);
-
-static int
-hooks_cmp(struct hook *hook1, struct hook *hook2)
-{
-	return (strcmp(hook1->name, hook2->name));
-}
-
-struct hooks *
-hooks_get(struct session *s)
-{
-	if (s != NULL)
-		return (s->hooks);
-	return (global_hooks);
-}
-
-struct hooks *
-hooks_create(struct hooks *parent)
-{
-	struct hooks	*hooks;
-
-	hooks = xcalloc(1, sizeof *hooks);
-	RB_INIT(&hooks->tree);
-	hooks->parent = parent;
-	return (hooks);
-}
-
-static void
-hooks_free1(struct hooks *hooks, struct hook *hook)
-{
-	RB_REMOVE(hooks_tree, &hooks->tree, hook);
-	cmd_list_free(hook->cmdlist);
-	free((char *)hook->name);
-	free(hook);
-}
-
-void
-hooks_free(struct hooks *hooks)
-{
-	struct hook	*hook, *hook1;
-
-	RB_FOREACH_SAFE(hook, hooks_tree, &hooks->tree, hook1)
-		hooks_free1(hooks, hook);
-	free(hooks);
-}
-
-struct hook *
-hooks_first(struct hooks *hooks)
-{
-	return (RB_MIN(hooks_tree, &hooks->tree));
-}
-
-struct hook *
-hooks_next(struct hook *hook)
-{
-	return (RB_NEXT(hooks_tree, &hooks->tree, hook));
-}
-
-void
-hooks_add(struct hooks *hooks, const char *name, struct cmd_list *cmdlist)
-{
-	struct hook	*hook;
-
-	if ((hook = hooks_find1(hooks, name)) != NULL)
-		hooks_free1(hooks, hook);
-
-	hook = xcalloc(1, sizeof *hook);
-	hook->name = xstrdup(name);
-	hook->cmdlist = cmdlist;
-	hook->cmdlist->references++;
-	RB_INSERT(hooks_tree, &hooks->tree, hook);
-}
-
-void
-hooks_remove(struct hooks *hooks, const char *name)
-{
-	struct hook	*hook;
-
-	if ((hook = hooks_find1(hooks, name)) != NULL)
-		hooks_free1(hooks, hook);
-}
-
-static struct hook *
-hooks_find1(struct hooks *hooks, const char *name)
-{
-	struct hook	hook;
-
-	hook.name = name;
-	return (RB_FIND(hooks_tree, &hooks->tree, &hook));
-}
-
-struct hook *
-hooks_find(struct hooks *hooks, const char *name)
-{
-	struct hook	 hook0, *hook;
-
-	hook0.name = name;
-	hook = RB_FIND(hooks_tree, &hooks->tree, &hook0);
-	while (hook == NULL) {
-		hooks = hooks->parent;
-		if (hooks == NULL)
-			break;
-		hook = RB_FIND(hooks_tree, &hooks->tree, &hook0);
-	}
-	return (hook);
-}
-
-void
-hooks_insert(struct hooks *hooks, struct cmdq_item *item,
-    struct cmd_find_state *fs, const char *fmt, ...)
-{
-	struct hook		*hook;
-	va_list			 ap;
-	char			*name;
-	struct cmdq_item	*new_item;
-
-	if (item->flags & CMDQ_NOHOOKS)
-		return;
-
-	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 (parent %p)", name, item);
-
-	new_item = cmdq_get_command(hook->cmdlist, fs, NULL, CMDQ_NOHOOKS);
-	cmdq_format(new_item, "hook", "%s", name);
-	if (item != NULL)
-		cmdq_insert_after(item, new_item);
-	else
-		cmdq_append(NULL, new_item);
-
-	free(name);
-}

input-keys.c

@@ -42,9 +42,6 @@ struct input_key_ent {
 };
 
 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 },
@@ -152,14 +149,14 @@ input_split2(u_int c, u_char *dst)
 }
 
 /* Translate a key code into an output key sequence. */
-void
+int
 input_key(struct window_pane *wp, key_code key, struct mouse_event *m)
 {
 	const struct input_key_ent	*ike;
 	u_int				 i;
 	size_t				 dlen;
 	char				*out;
-	key_code			 justkey;
+	key_code			 justkey, newkey;
 	struct utf8_data		 ud;
 
 	log_debug("writing key 0x%llx (%s) to %%%u", key,
@@ -169,7 +166,22 @@ input_key(struct window_pane *wp, key_code key, struct mouse_event *m)
 	if (KEYC_IS_MOUSE(key)) {
 		if (m != NULL && m->wp != -1 && (u_int)m->wp == wp->id)
 			input_key_mouse(wp, m);
-		return;
+		return (0);
+	}
+
+	/* Literal keys go as themselves (can't be more than eight bits). */
+	if (key & KEYC_LITERAL) {
+		ud.data[0] = (u_char)key;
+		bufferevent_write(wp->event, &ud.data[0], 1);
+		return (0);
+	}
+
+	/* Is this backspace? */
+	if ((key & KEYC_MASK_KEY) == KEYC_BSPACE) {
+		newkey = options_get_number(global_options, "backspace");
+		if (newkey >= 0x7f)
+			newkey = '\177';
+		key = newkey|(key & KEYC_MASK_MOD);
 	}
 
 	/*
@@ -182,15 +194,15 @@ input_key(struct window_pane *wp, key_code key, struct mouse_event *m)
 			bufferevent_write(wp->event, "\033", 1);
 		ud.data[0] = justkey;
 		bufferevent_write(wp->event, &ud.data[0], 1);
-		return;
+		return (0);
 	}
 	if (justkey > 0x7f && justkey < KEYC_BASE) {
 		if (utf8_split(justkey, &ud) != UTF8_DONE)
-			return;
+			return (-1);
 		if (key & KEYC_ESCAPE)
 			bufferevent_write(wp->event, "\033", 1);
 		bufferevent_write(wp->event, ud.data, ud.size);
-		return;
+		return (0);
 	}
 
 	/*
@@ -201,7 +213,7 @@ input_key(struct window_pane *wp, key_code key, struct mouse_event *m)
 		if ((out = xterm_keys_lookup(key)) != NULL) {
 			bufferevent_write(wp->event, out, strlen(out));
 			free(out);
-			return;
+			return (0);
 		}
 	}
 	key &= ~KEYC_XTERM;
@@ -224,7 +236,7 @@ input_key(struct window_pane *wp, key_code key, struct mouse_event *m)
 	}
 	if (i == nitems(input_keys)) {
 		log_debug("key 0x%llx missing", key);
-		return;
+		return (-1);
 	}
 	dlen = strlen(ike->data);
 	log_debug("found key 0x%llx: \"%s\"", key, ike->data);
@@ -233,6 +245,7 @@ input_key(struct window_pane *wp, key_code key, struct mouse_event *m)
 	if (key & KEYC_ESCAPE)
 		bufferevent_write(wp->event, "\033", 1);
 	bufferevent_write(wp->event, ike->data, dlen);
+	return (0);
 }
 
 /* Translate mouse and output. */

input.c

@@ -20,6 +20,7 @@
 
 #include <netinet/in.h>
 
+#include <ctype.h>
 #include <resolv.h>
 #include <stdlib.h>
 #include <string.h>
@@ -244,6 +245,7 @@ enum input_csi_type {
 	INPUT_CSI_RM,
 	INPUT_CSI_RM_PRIVATE,
 	INPUT_CSI_SCP,
+	INPUT_CSI_SD,
 	INPUT_CSI_SGR,
 	INPUT_CSI_SM,
 	INPUT_CSI_SM_PRIVATE,
@@ -270,6 +272,7 @@ static const struct input_table_entry input_csi_table[] = {
 	{ 'M', "",  INPUT_CSI_DL },
 	{ 'P', "",  INPUT_CSI_DCH },
 	{ 'S', "",  INPUT_CSI_SU },
+	{ 'T', "",  INPUT_CSI_SD },
 	{ 'X', "",  INPUT_CSI_ECH },
 	{ 'Z', "",  INPUT_CSI_CBT },
 	{ '`', "",  INPUT_CSI_HPA },
@@ -738,7 +741,7 @@ input_timer_callback(__unused int fd, __unused short events, void *arg)
 static void
 input_start_timer(struct input_ctx *ictx)
 {
-	struct timeval	tv = { .tv_usec = 100000 };
+	struct timeval	tv = { .tv_sec = 5, .tv_usec = 0 };
 
 	event_del(&ictx->timer);
 	event_add(&ictx->timer, &tv);
@@ -770,6 +773,7 @@ input_save_state(struct input_ctx *ictx)
 	ictx->old_mode = s->mode;
 }
 
+/* Restore screen state. */
 static void
 input_restore_state(struct input_ctx *ictx)
 {
@@ -873,19 +877,29 @@ input_set_state(struct window_pane *wp, const struct input_transition *itr)
 /* Parse input. */
 void
 input_parse(struct window_pane *wp)
+{
+	struct evbuffer	*evb = wp->event->input;
+
+	input_parse_buffer(wp, EVBUFFER_DATA(evb), EVBUFFER_LENGTH(evb));
+	evbuffer_drain(evb, EVBUFFER_LENGTH(evb));
+}
+
+/* Parse given input. */
+void
+input_parse_buffer(struct window_pane *wp, u_char *buf, size_t len)
 {
 	struct input_ctx		*ictx = wp->ictx;
 	struct screen_write_ctx		*sctx = &ictx->ctx;
-	const struct input_transition	*itr;
-	struct evbuffer			*evb = wp->event->input;
-	u_char				*buf;
-	size_t				 len, off;
+	const struct input_state	*state = NULL;
+	const struct input_transition	*itr = NULL;
+	size_t				 off = 0;
 
-	if (EVBUFFER_LENGTH(evb) == 0)
+	if (len == 0)
 		return;
 
 	window_update_activity(wp->window);
 	wp->flags |= PANE_CHANGED;
+	notify_input(wp, buf, len);
 
 	/*
 	 * Open the screen. Use NULL wp if there is a mode set as don't want to
@@ -897,12 +911,6 @@ input_parse(struct window_pane *wp)
 		screen_write_start(sctx, NULL, &wp->base);
 	ictx->wp = wp;
 
-	buf = EVBUFFER_DATA(evb);
-	len = EVBUFFER_LENGTH(evb);
-	off = 0;
-
-	notify_input(wp, evb);
-
 	log_debug("%s: %%%u %s, %zu bytes: %.*s", __func__, wp->id,
 	    ictx->state->name, len, (int)len, buf);
 
@@ -911,16 +919,23 @@ input_parse(struct window_pane *wp)
 		ictx->ch = buf[off++];
 
 		/* Find the transition. */
-		itr = ictx->state->transitions;
-		while (itr->first != -1 && itr->last != -1) {
-			if (ictx->ch >= itr->first && ictx->ch <= itr->last)
-				break;
-			itr++;
-		}
-		if (itr->first == -1 || itr->last == -1) {
-			/* No transition? Eh? */
-			fatalx("no transition from state");
+		if (ictx->state != state ||
+		    itr == NULL ||
+		    ictx->ch < itr->first ||
+		    ictx->ch > itr->last) {
+			itr = ictx->state->transitions;
+			while (itr->first != -1 && itr->last != -1) {
+				if (ictx->ch >= itr->first &&
+				    ictx->ch <= itr->last)
+					break;
+				itr++;
+			}
+			if (itr->first == -1 || itr->last == -1) {
+				/* No transition? Eh? */
+				fatalx("no transition from state");
+			}
 		}
+		state = ictx->state;
 
 		/*
 		 * Any state except print stops the current collection. This is
@@ -950,8 +965,6 @@ input_parse(struct window_pane *wp)
 
 	/* Close the screen. */
 	screen_write_stop(sctx);
-
-	evbuffer_drain(evb, len);
 }
 
 /* Split the parameter list (if any). */
@@ -1185,6 +1198,8 @@ input_c0_dispatch(struct input_ctx *ictx)
 	case '\013':	/* VT */
 	case '\014':	/* FF */
 		screen_write_linefeed(sctx, 0, ictx->cell.cell.bg);
+		if (s->mode & MODE_CRLF)
+			screen_write_carriagereturn(sctx);
 		break;
 	case '\015':	/* CR */
 		screen_write_carriagereturn(sctx);
@@ -1288,6 +1303,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 	struct input_table_entry       *entry;
 	int				i, n, m;
 	u_int				cx, bg = ictx->cell.cell.bg;
+	char			       *copy, *cp;
 
 	if (ictx->flags & INPUT_DISCARD)
 		return (0);
@@ -1419,6 +1435,13 @@ input_csi_dispatch(struct input_ctx *ictx)
 		case 6:
 			input_reply(ictx, "\033[%u;%uR", s->cy + 1, s->cx + 1);
 			break;
+		case 1337: /* Terminal version, from iTerm2. */
+			copy = xstrdup(getversion());
+			for (cp = copy; *cp != '\0'; cp++)
+				*cp = toupper((u_char)*cp);
+			input_reply(ictx, "\033[TMUX %sn", copy);
+			free(copy);
+			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);
 			break;
@@ -1522,6 +1545,11 @@ input_csi_dispatch(struct input_ctx *ictx)
 		if (n != -1)
 			screen_write_scrollup(sctx, n, bg);
 		break;
+	case INPUT_CSI_SD:
+		n = input_get(ictx, 0, 1, 1);
+		if (n != -1)
+			screen_write_scrolldown(sctx, n, bg);
+		break;
 	case INPUT_CSI_TBC:
 		switch (input_get(ictx, 0, 0, 0)) {
 		case -1:
@@ -1826,6 +1854,8 @@ input_csi_dispatch_sgr_256_do(struct input_ctx *ictx, int fgbg, int c)
 			gc->fg = c | COLOUR_FLAG_256;
 		else if (fgbg == 48)
 			gc->bg = c | COLOUR_FLAG_256;
+		else if (fgbg == 58)
+			gc->us = c | COLOUR_FLAG_256;
 	}
 	return (1);
 }
@@ -1859,6 +1889,8 @@ input_csi_dispatch_sgr_rgb_do(struct input_ctx *ictx, int fgbg, int r, int g,
 		gc->fg = colour_join_rgb(r, g, b);
 	else if (fgbg == 48)
 		gc->bg = colour_join_rgb(r, g, b);
+	else if (fgbg == 58)
+		gc->us = colour_join_rgb(r, g, b);
 	return (1);
 }
 
@@ -1897,8 +1929,13 @@ input_csi_dispatch_sgr_colon(struct input_ctx *ictx, u_int i)
 				free(copy);
 				return;
 			}
-		} else
+		} else {
 			n++;
+			if (n == nitems(p)) {
+				free(copy);
+				return;
+			}
+		}
 		log_debug("%s: %u = %d", __func__, n - 1, p[n - 1]);
 	}
 	free(copy);
@@ -1935,23 +1972,25 @@ input_csi_dispatch_sgr_colon(struct input_ctx *ictx, u_int i)
 		}
 		return;
 	}
-	if (p[0] != 38 && p[0] != 48)
+	if (n < 2 || (p[0] != 38 && p[0] != 48 && p[0] != 58))
 		return;
-	if (p[1] == -1)
-		i = 2;
-	else
-		i = 1;
-	switch (p[i]) {
+	switch (p[1]) {
 	case 2:
-		if (n < i + 4)
+		if (n < 3)
 			break;
-		input_csi_dispatch_sgr_rgb_do(ictx, p[0], p[i + 1], p[i + 2],
-		    p[i + 3]);
+		if (n == 5)
+			i = 2;
+		else
+			i = 3;
+		if (n < i + 3)
+			break;
+		input_csi_dispatch_sgr_rgb_do(ictx, p[0], p[i], p[i + 1],
+		    p[i + 2]);
 		break;
 	case 5:
-		if (n < i + 2)
+		if (n < 3)
 			break;
-		input_csi_dispatch_sgr_256_do(ictx, p[0], p[i + 1]);
+		input_csi_dispatch_sgr_256_do(ictx, p[0], p[2]);
 		break;
 	}
 }
@@ -1978,7 +2017,7 @@ input_csi_dispatch_sgr(struct input_ctx *ictx)
 		if (n == -1)
 			continue;
 
-		if (n == 38 || n == 48) {
+		if (n == 38 || n == 48 || n == 58) {
 			i++;
 			switch (input_get(ictx, i, 0, -1)) {
 			case 2:
@@ -2067,6 +2106,15 @@ input_csi_dispatch_sgr(struct input_ctx *ictx)
 		case 49:
 			gc->bg = 8;
 			break;
+		case 53:
+			gc->attr |= GRID_ATTR_OVERLINE;
+			break;
+		case 55:
+			gc->attr &= ~GRID_ATTR_OVERLINE;
+			break;
+		case 59:
+			gc->us = 0;
+			break;
 		case 90:
 		case 91:
 		case 92:
@@ -2170,14 +2218,18 @@ input_exit_osc(struct input_ctx *ictx)
 	switch (option) {
 	case 0:
 	case 2:
-		if (utf8_isvalid(p)) {
-			screen_set_title(sctx->s, p);
+		if (screen_set_title(sctx->s, p))
 			server_status_window(ictx->wp->window);
-		}
 		break;
 	case 4:
 		input_osc_4(ictx, p);
 		break;
+	case 7:
+		if (utf8_isvalid(p)) {
+			screen_set_path(sctx->s, p);
+			server_status_window(ictx->wp->window);
+		}
+		break;
 	case 10:
 		input_osc_10(ictx, p);
 		break;
@@ -2225,10 +2277,8 @@ input_exit_apc(struct input_ctx *ictx)
 		return;
 	log_debug("%s: \"%s\"", __func__, ictx->input_buf);
 
-	if (!utf8_isvalid(ictx->input_buf))
-		return;
-	screen_set_title(sctx->s, ictx->input_buf);
-	server_status_window(ictx->wp->window);
+	if (screen_set_title(sctx->s, ictx->input_buf))
+		server_status_window(ictx->wp->window);
 }
 
 /* Rename string started. */
@@ -2246,14 +2296,24 @@ input_enter_rename(struct input_ctx *ictx)
 static void
 input_exit_rename(struct input_ctx *ictx)
 {
+	struct window_pane	*wp = ictx->wp;
+	struct options_entry	*oe;
+
 	if (ictx->flags & INPUT_DISCARD)
 		return;
-	if (!options_get_number(ictx->wp->window->options, "allow-rename"))
+	if (!options_get_number(ictx->wp->options, "allow-rename"))
 		return;
 	log_debug("%s: \"%s\"", __func__, ictx->input_buf);
 
 	if (!utf8_isvalid(ictx->input_buf))
 		return;
+
+	if (ictx->input_len == 0) {
+		oe = options_get_only(wp->window->options, "automatic-rename");
+		if (oe != NULL)
+			options_remove(oe);
+		return;
+	}
 	window_set_name(ictx->wp->window, ictx->input_buf);
 	options_set_number(ictx->wp->window->options, "automatic-rename", 0);
 	server_status_window(ictx->wp->window);
@@ -2295,6 +2355,54 @@ input_top_bit_set(struct input_ctx *ictx)
 	return (0);
 }
 
+/* Parse colour from OSC. */
+static int
+input_osc_parse_colour(const char *p, u_int *r, u_int *g, u_int *b)
+{
+	u_int		 rsize, gsize, bsize;
+	const char	*cp, *s = p;
+
+	if (sscanf(p, "rgb:%x/%x/%x", r, g, b) != 3)
+		return (0);
+	p += 4;
+
+	cp = strchr(p, '/');
+	rsize = cp - p;
+	if (rsize == 1)
+		(*r) = (*r) | ((*r) << 4);
+	else if (rsize == 3)
+		(*r) >>= 4;
+	else if (rsize == 4)
+		(*r) >>= 8;
+	else if (rsize != 2)
+		return (0);
+
+	p = cp + 1;
+	cp = strchr(p, '/');
+	gsize = cp - p;
+	if (gsize == 1)
+		(*g) = (*g) | ((*g) << 4);
+	else if (gsize == 3)
+		(*g) >>= 4;
+	else if (gsize == 4)
+		(*g) >>= 8;
+	else if (gsize != 2)
+		return (0);
+
+	bsize = strlen(cp + 1);
+	if (bsize == 1)
+		(*b) = (*b) | ((*b) << 4);
+	else if (bsize == 3)
+		(*b) >>= 4;
+	else if (bsize == 4)
+		(*b) >>= 8;
+	else if (bsize != 2)
+		return (0);
+
+	log_debug("%s: %s = %02x%02x%02x", __func__, s, *r, *g, *b);
+	return (1);
+}
+
 /* Handle the OSC 4 sequence for setting (multiple) palette entries. */
 static void
 input_osc_4(struct input_ctx *ictx, const char *p)
@@ -2313,7 +2421,7 @@ input_osc_4(struct input_ctx *ictx, const char *p)
 			goto bad;
 
 		s = strsep(&next, ";");
-		if (sscanf(s, "rgb:%2x/%2x/%2x", &r, &g, &b) != 3) {
+		if (!input_osc_parse_colour(s, &r, &g, &b)) {
 			s = next;
 			continue;
 		}
@@ -2336,12 +2444,17 @@ input_osc_10(struct input_ctx *ictx, const char *p)
 {
 	struct window_pane	*wp = ictx->wp;
 	u_int			 r, g, b;
+	char			 tmp[16];
 
-	if (sscanf(p, "rgb:%2x/%2x/%2x", &r, &g, &b) != 3)
-	    goto bad;
+	if (strcmp(p, "?") == 0)
+		return;
 
-	wp->style.gc.fg = colour_join_rgb(r, g, b);
-	wp->flags |= PANE_REDRAW;
+	if (!input_osc_parse_colour(p, &r, &g, &b))
+		goto bad;
+	xsnprintf(tmp, sizeof tmp, "fg=#%02x%02x%02x", r, g, b);
+	options_set_style(wp->options, "window-style", 1, tmp);
+	options_set_style(wp->options, "window-active-style", 1, tmp);
+	wp->flags |= (PANE_REDRAW|PANE_STYLECHANGED);
 
 	return;
 
@@ -2355,12 +2468,17 @@ input_osc_11(struct input_ctx *ictx, const char *p)
 {
 	struct window_pane	*wp = ictx->wp;
 	u_int			 r, g, b;
+	char			 tmp[16];
 
-	if (sscanf(p, "rgb:%2x/%2x/%2x", &r, &g, &b) != 3)
+	if (strcmp(p, "?") == 0)
+		return;
+
+	if (!input_osc_parse_colour(p, &r, &g, &b))
 	    goto bad;
-
-	wp->style.gc.bg = colour_join_rgb(r, g, b);
-	wp->flags |= PANE_REDRAW;
+	xsnprintf(tmp, sizeof tmp, "bg=#%02x%02x%02x", r, g, b);
+	options_set_style(wp->options, "window-style", 1, tmp);
+	options_set_style(wp->options, "window-active-style", 1, tmp);
+	wp->flags |= (PANE_REDRAW|PANE_STYLECHANGED);
 
 	return;
 
@@ -2398,7 +2516,6 @@ input_osc_52(struct input_ctx *ictx, const char *p)
 			outlen = 4 * ((len + 2) / 3) + 1;
 			out = xmalloc(outlen);
 			if ((outlen = b64_ntop(buf, len, out, outlen)) == -1) {
-				abort();
 				free(out);
 				return;
 			}
@@ -2432,7 +2549,7 @@ input_osc_52(struct input_ctx *ictx, const char *p)
 	screen_write_stop(&ctx);
 	notify_pane("pane-set-clipboard", wp);
 
-	paste_add(out, outlen);
+	paste_add(NULL, out, outlen);
 }
 
 /* Handle the OSC 104 sequence for unsetting (multiple) palette entries. */

job.c

@@ -117,7 +117,7 @@ job_run(const char *cmd, struct session *s, const char *cwd,
 		close(out[0]);
 
 		nullfd = open(_PATH_DEVNULL, O_RDWR, 0);
-		if (nullfd < 0)
+		if (nullfd == -1)
 			fatal("open failed");
 		if (dup2(nullfd, STDERR_FILENO) == -1)
 			fatal("dup2 failed");

key-bindings.c

@@ -24,6 +24,45 @@
 
 #include "tmux.h"
 
+#define DEFAULT_SESSION_MENU \
+	" 'Next' 'n' {switch-client -n}" \
+	" 'Previous' 'p' {switch-client -p}" \
+	" ''" \
+	" 'Renumber' 'N' {move-window -r}" \
+	" 'Rename' 'n' {command-prompt -I \"#S\" \"rename-session -- '%%'\"}" \
+	" ''" \
+	" 'New Session' 's' {new-session}" \
+	" 'New Window' 'w' {new-window}"
+#define DEFAULT_WINDOW_MENU \
+	" 'Swap Left' 'l' {swap-window -t:-1}" \
+	" 'Swap Right' 'r' {swap-window -t:+1}" \
+	" '#{?pane_marked_set,,-}Swap Marked' 's' {swap-window}" \
+	" ''" \
+	" 'Kill' 'X' {kill-window}" \
+	" 'Respawn' 'R' {respawn-window -k}" \
+	" '#{?pane_marked,Unmark,Mark}' 'm' {select-pane -m}" \
+	" 'Rename' 'n' {command-prompt -I \"#W\" \"rename-window -- '%%'\"}" \
+	" ''" \
+	" 'New After' 'w' {new-window -a}" \
+	" 'New At End' 'W' {new-window}"
+#define DEFAULT_PANE_MENU \
+	" '#{?mouse_word,Search For #[underscore]#{=/9/...:mouse_word},}' 'C-r' {copy-mode -t=; send -Xt= search-backward \"#{q:mouse_word}\"}" \
+	" '#{?mouse_word,Type #[underscore]#{=/9/...:mouse_word},}' 'C-y' {send-keys -l -- \"#{q:mouse_word}\"}" \
+	" '#{?mouse_word,Copy #[underscore]#{=/9/...:mouse_word},}' 'c' {set-buffer -- \"#{q:mouse_word}\"}" \
+	" '#{?mouse_line,Copy Line,}' 'l' {set-buffer -- \"#{q:mouse_line}\"}" \
+	" ''" \
+	" 'Horizontal Split' 'h' {split-window -h}" \
+	" 'Vertical Split' 'v' {split-window -v}" \
+	" ''" \
+	" 'Swap Up' 'u' {swap-pane -U}" \
+	" 'Swap Down' 'd' {swap-pane -D}" \
+	" '#{?pane_marked_set,,-}Swap Marked' 's' {swap-pane}" \
+	" ''" \
+	" 'Kill' 'X' {kill-pane}" \
+	" 'Respawn' 'R' {respawn-pane -k}" \
+	" '#{?pane_marked,Unmark,Mark}' 'm' {select-pane -m}" \
+	" '#{?window_zoomed_flag,Unzoom,Zoom}' 'z' {resize-pane -Z}"
+
 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 *);
@@ -46,6 +85,15 @@ key_bindings_cmp(struct key_binding *bd1, struct key_binding *bd2)
 	return (0);
 }
 
+static void
+key_bindings_free(struct key_table *table, struct key_binding *bd)
+{
+	RB_REMOVE(key_bindings, &table->key_bindings, bd);
+	cmd_list_free(bd->cmdlist);
+	free((void *)bd->note);
+	free(bd);
+}
+
 struct key_table *
 key_bindings_get_table(const char *name, int create)
 {
@@ -87,11 +135,8 @@ key_bindings_unref_table(struct key_table *table)
 	if (--table->references != 0)
 		return;
 
-	RB_FOREACH_SAFE(bd, key_bindings, &table->key_bindings, bd1) {
-		RB_REMOVE(key_bindings, &table->key_bindings, bd);
-		cmd_list_free(bd->cmdlist);
-		free(bd);
-	}
+	RB_FOREACH_SAFE(bd, key_bindings, &table->key_bindings, bd1)
+		key_bindings_free(table, bd);
 
 	free((void *)table->name);
 	free(table);
@@ -119,24 +164,22 @@ key_bindings_next(__unused struct key_table *table, struct key_binding *bd)
 }
 
 void
-key_bindings_add(const char *name, key_code key, int repeat,
+key_bindings_add(const char *name, key_code key, const char *note, int repeat,
     struct cmd_list *cmdlist)
 {
 	struct key_table	*table;
-	struct key_binding	 bd_find, *bd;
+	struct key_binding	*bd;
 
 	table = key_bindings_get_table(name, 1);
 
-	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);
-		cmd_list_free(bd->cmdlist);
-		free(bd);
-	}
+	bd = key_bindings_get(table, key & ~KEYC_XTERM);
+	if (bd != NULL)
+		key_bindings_free(table, bd);
 
 	bd = xcalloc(1, sizeof *bd);
 	bd->key = key;
+	if (note != NULL)
+		bd->note = xstrdup(note);
 	RB_INSERT(key_bindings, &table->key_bindings, bd);
 
 	if (repeat)
@@ -148,20 +191,16 @@ void
 key_bindings_remove(const char *name, key_code key)
 {
 	struct key_table	*table;
-	struct key_binding	 bd_find, *bd;
+	struct key_binding	*bd;
 
 	table = key_bindings_get_table(name, 0);
 	if (table == NULL)
 		return;
 
-	bd_find.key = (key & ~KEYC_XTERM);
-	bd = RB_FIND(key_bindings, &table->key_bindings, &bd_find);
+	bd = key_bindings_get(table, key & ~KEYC_XTERM);
 	if (bd == NULL)
 		return;
-
-	RB_REMOVE(key_bindings, &table->key_bindings, bd);
-	cmd_list_free(bd->cmdlist);
-	free(bd);
+	key_bindings_free(table, bd);
 
 	if (RB_EMPTY(&table->key_bindings)) {
 		RB_REMOVE(key_tables, &key_tables, table);
@@ -190,95 +229,103 @@ void
 key_bindings_init(void)
 {
 	static const char *defaults[] = {
-		"bind C-b send-prefix",
-		"bind C-o rotate-window",
-		"bind C-z suspend-client",
-		"bind Space next-layout",
-		"bind ! break-pane",
-		"bind '\"' split-window",
-		"bind '#' list-buffers",
-		"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 - delete-buffer",
-		"bind . command-prompt \"move-window -t '%%'\"",
-		"bind 0 select-window -t:=0",
-		"bind 1 select-window -t:=1",
-		"bind 2 select-window -t:=2",
-		"bind 3 select-window -t:=3",
-		"bind 4 select-window -t:=4",
-		"bind 5 select-window -t:=5",
-		"bind 6 select-window -t:=6",
-		"bind 7 select-window -t:=7",
-		"bind 8 select-window -t:=8",
-		"bind 9 select-window -t:=9",
-		"bind : command-prompt",
-		"bind \\; last-pane",
-		"bind = choose-buffer -Z",
-		"bind ? list-keys",
-		"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 -Z -- '%%'\"",
-		"bind i display-message",
-		"bind l last-window",
-		"bind m select-pane -m",
-		"bind n next-window",
-		"bind o select-pane -t:.+",
-		"bind p previous-window",
-		"bind q display-panes",
-		"bind r refresh-client",
-		"bind s choose-tree -Zs",
-		"bind t clock-mode",
-		"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",
-		"bind } swap-pane -D",
-		"bind '~' show-messages",
-		"bind PPage copy-mode -u",
-		"bind -r Up select-pane -U",
-		"bind -r Down select-pane -D",
-		"bind -r Left select-pane -L",
-		"bind -r Right select-pane -R",
-		"bind M-1 select-layout even-horizontal",
-		"bind M-2 select-layout even-vertical",
-		"bind M-3 select-layout main-horizontal",
-		"bind M-4 select-layout main-vertical",
-		"bind M-5 select-layout tiled",
-		"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",
-		"bind -r M-Right resize-pane -R 5",
-		"bind -r C-Up resize-pane -U",
-		"bind -r C-Down resize-pane -D",
-		"bind -r C-Left resize-pane -L",
-		"bind -r C-Right resize-pane -R",
+		"bind -N 'Send the prefix key' C-b send-prefix",
+		"bind -N 'Rotate through the panes' C-o rotate-window",
+		"bind -N 'Suspend the current client' C-z suspend-client",
+		"bind -N 'Select next layout' Space next-layout",
+		"bind -N 'Break pane to a new window' ! break-pane",
+		"bind -N 'Split window vertically' '\"' split-window",
+		"bind -N 'List all paste buffers' '#' list-buffers",
+		"bind -N 'Rename current session' '$' command-prompt -I'#S' \"rename-session -- '%%'\"",
+		"bind -N 'Split window horizontally' % split-window -h",
+		"bind -N 'Kill current window' & confirm-before -p\"kill-window #W? (y/n)\" kill-window",
+		"bind -N 'Prompt for window index to select' \"'\" command-prompt -pindex \"select-window -t ':%%'\"",
+		"bind -N 'Switch to previous client' ( switch-client -p",
+		"bind -N 'Switch to next client' ) switch-client -n",
+		"bind -N 'Rename current window' , command-prompt -I'#W' \"rename-window -- '%%'\"",
+		"bind -N 'Delete the most recent paste buffer' - delete-buffer",
+		"bind -N 'Move the current window' . command-prompt \"move-window -t '%%'\"",
+		"bind -N 'Describe key binding' '/' command-prompt -kpkey 'list-keys -1N \"%%%\"'",
+		"bind -N 'Select window 0' 0 select-window -t:=0",
+		"bind -N 'Select window 1' 1 select-window -t:=1",
+		"bind -N 'Select window 2' 2 select-window -t:=2",
+		"bind -N 'Select window 3' 3 select-window -t:=3",
+		"bind -N 'Select window 4' 4 select-window -t:=4",
+		"bind -N 'Select window 5' 5 select-window -t:=5",
+		"bind -N 'Select window 6' 6 select-window -t:=6",
+		"bind -N 'Select window 7' 7 select-window -t:=7",
+		"bind -N 'Select window 8' 8 select-window -t:=8",
+		"bind -N 'Select window 9' 9 select-window -t:=9",
+		"bind -N 'Prompt for a command' : command-prompt",
+		"bind -N 'Move to the previously active pane' \\; last-pane",
+		"bind -N 'Choose a paste buffer from a list' = choose-buffer -Z",
+		"bind -N 'List key bindings' ? list-keys -N",
+		"bind -N 'Choose a client from a list' D choose-client -Z",
+		"bind -N 'Spread panes out evenly' E select-layout -E",
+		"bind -N 'Switch to the last client' L switch-client -l",
+		"bind -N 'Clear the marked pane' M select-pane -M",
+		"bind -N 'Enter copy mode' [ copy-mode",
+		"bind -N 'Paste the most recent paste buffer' ] paste-buffer",
+		"bind -N 'Create a new window' c new-window",
+		"bind -N 'Detach the current client' d detach-client",
+		"bind -N 'Search for a pane' f command-prompt \"find-window -Z -- '%%'\"",
+		"bind -N 'Display window information' i display-message",
+		"bind -N 'Select the previously current window' l last-window",
+		"bind -N 'Toggle the marked pane' m select-pane -m",
+		"bind -N 'Select the next window' n next-window",
+		"bind -N 'Select the next pane' o select-pane -t:.+",
+		"bind -N 'Select the previous pane' p previous-window",
+		"bind -N 'Display pane numbers' q display-panes",
+		"bind -N 'Redraw the current client' r refresh-client",
+		"bind -N 'Choose a session from a list' s choose-tree -Zs",
+		"bind -N 'Show a clock' t clock-mode",
+		"bind -N 'Choose a window from a list' w choose-tree -Zw",
+		"bind -N 'Kill the active pane' x confirm-before -p\"kill-pane #P? (y/n)\" kill-pane",
+		"bind -N 'Zoom the active pane' z resize-pane -Z",
+		"bind -N 'Swap the active pane with the pane above' '{' swap-pane -U",
+		"bind -N 'Swap the active pane with the pane below' '}' swap-pane -D",
+		"bind -N 'Show messages' '~' show-messages",
+		"bind -N 'Enter copy mode and scroll up' PPage copy-mode -u",
+		"bind -N 'Select the pane above the active pane' -r Up select-pane -U",
+		"bind -N 'Select the pane below the active pane' -r Down select-pane -D",
+		"bind -N 'Select the pane to the left of the active pane' -r Left select-pane -L",
+		"bind -N 'Select the pane to the right of the active pane' -r Right select-pane -R",
+		"bind -N 'Set the even-horizontal layout' M-1 select-layout even-horizontal",
+		"bind -N 'Set the even-vertical layout' M-2 select-layout even-vertical",
+		"bind -N 'Set the main-horizontal layout' M-3 select-layout main-horizontal",
+		"bind -N 'Set the main-vertical layout' M-4 select-layout main-vertical",
+		"bind -N 'Select the tiled layout' M-5 select-layout tiled",
+		"bind -N 'Select the next window with an alert' M-n next-window -a",
+		"bind -N 'Rotate through the panes in reverse' M-o rotate-window -D",
+		"bind -N 'Select the previous window with an alert' M-p previous-window -a",
+		"bind -N 'Move the visible part of the window up' -r S-Up refresh-client -U 10",
+		"bind -N 'Move the visible part of the window down' -r S-Down refresh-client -D 10",
+		"bind -N 'Move the visible part of the window left' -r S-Left refresh-client -L 10",
+		"bind -N 'Move the visible part of the window right' -r S-Right refresh-client -R 10",
+		"bind -N 'Reset so the visible part of the window follows the cursor' -r DC refresh-client -c",
+		"bind -N 'Resize the pane up by 5' -r M-Up resize-pane -U 5",
+		"bind -N 'Resize the pane down by 5' -r M-Down resize-pane -D 5",
+		"bind -N 'Resize the pane left by 5' -r M-Left resize-pane -L 5",
+		"bind -N 'Resize the pane right by 5' -r M-Right resize-pane -R 5",
+		"bind -N 'Resize the pane up' -r C-Up resize-pane -U",
+		"bind -N 'Resize the pane down' -r C-Down resize-pane -D",
+		"bind -N 'Resize the pane left' -r C-Left resize-pane -L",
+		"bind -N 'Resize the pane right' -r C-Right resize-pane -R",
+
 		"bind -n MouseDown1Pane select-pane -t=\\; send-keys -M",
 		"bind -n MouseDrag1Border resize-pane -M",
 		"bind -n MouseDown1Status select-window -t=",
 		"bind -n WheelDownStatus next-window",
 		"bind -n WheelUpStatus previous-window",
 		"bind -n MouseDrag1Pane if -Ft= '#{mouse_any_flag}' 'if -Ft= \"#{pane_in_mode}\" \"copy-mode -M\" \"send-keys -M\"' 'copy-mode -M'",
-		"bind -n MouseDown3Pane if-shell -Ft= '#{mouse_any_flag}' 'select-pane -t=; send-keys -M' 'select-pane -mt='",
-		"bind -n WheelUpPane if-shell -Ft= '#{mouse_any_flag}' 'send-keys -M' 'if -Ft= \"#{pane_in_mode}\" \"send-keys -M\" \"copy-mode -et=\"'",
+		"bind -n WheelUpPane if -Ft= '#{mouse_any_flag}' 'send-keys -M' 'if -Ft= \"#{pane_in_mode}\" \"send-keys -M\" \"copy-mode -et=\"'",
+
+		"bind -n MouseDown3StatusLeft display-menu -t= -xM -yS -T \"#[align=centre]#{session_name}\" " DEFAULT_SESSION_MENU,
+		"bind -n MouseDown3Status display-menu -t= -xW -yS -T \"#[align=centre]#{window_index}:#{window_name}\" " DEFAULT_WINDOW_MENU,
+		"bind < display-menu -xW -yS -T \"#[align=centre]#{window_index}:#{window_name}\" " DEFAULT_WINDOW_MENU,
+		"bind -n MouseDown3Pane if -Ft= '#{||:#{mouse_any_flag},#{pane_in_mode}}' 'select-pane -t=; send-keys -M' {display-menu -t= -xM -yM -T \"#[align=centre]#{pane_index} (#{pane_id})\" " DEFAULT_PANE_MENU "}",
+		"bind -n M-MouseDown3Pane display-menu -t= -xM -yM -T \"#[align=centre]#{pane_index} (#{pane_id})\" " DEFAULT_PANE_MENU,
+		"bind > display-menu -xP -yP -T \"#[align=centre]#{pane_index} (#{pane_id})\" " DEFAULT_PANE_MENU,
 
 		"bind -Tcopy-mode C-Space send -X begin-selection",
 		"bind -Tcopy-mode C-a send -X start-of-line",
@@ -335,18 +382,22 @@ key_bindings_init(void)
 		"bind -Tcopy-mode M-> send -X history-bottom",
 		"bind -Tcopy-mode M-R send -X top-line",
 		"bind -Tcopy-mode M-b send -X previous-word",
+		"bind -Tcopy-mode C-M-b send -X previous-matching-bracket",
 		"bind -Tcopy-mode M-f send -X next-word-end",
+		"bind -Tcopy-mode C-M-f send -X next-matching-bracket",
 		"bind -Tcopy-mode M-m send -X back-to-indentation",
 		"bind -Tcopy-mode M-r send -X middle-line",
 		"bind -Tcopy-mode M-v send -X page-up",
 		"bind -Tcopy-mode M-w send -X copy-selection-and-cancel",
-		"bind -Tcopy-mode M-{ send -X previous-paragraph",
-		"bind -Tcopy-mode M-} send -X next-paragraph",
+		"bind -Tcopy-mode 'M-{' send -X previous-paragraph",
+		"bind -Tcopy-mode 'M-}' send -X next-paragraph",
 		"bind -Tcopy-mode M-Up send -X halfpage-up",
 		"bind -Tcopy-mode M-Down send -X halfpage-down",
 		"bind -Tcopy-mode C-Up send -X scroll-up",
 		"bind -Tcopy-mode C-Down send -X scroll-down",
 
+		"bind -Tcopy-mode-vi '#' send -FX search-backward '#{copy_cursor_word}'",
+		"bind -Tcopy-mode-vi * send -FX search-forward '#{copy_cursor_word}'",
 		"bind -Tcopy-mode-vi C-c send -X cancel",
 		"bind -Tcopy-mode-vi C-d send -X halfpage-down",
 		"bind -Tcopy-mode-vi C-e send -X scroll-down",
@@ -406,8 +457,9 @@ key_bindings_init(void)
 		"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",
-		"bind -Tcopy-mode-vi } send -X next-paragraph",
+		"bind -Tcopy-mode-vi '{' send -X previous-paragraph",
+		"bind -Tcopy-mode-vi '}' send -X next-paragraph",
+		"bind -Tcopy-mode-vi % send -X next-matching-bracket",
 		"bind -Tcopy-mode-vi MouseDown1Pane select-pane",
 		"bind -Tcopy-mode-vi MouseDrag1Pane select-pane\\; send -X begin-selection",
 		"bind -Tcopy-mode-vi MouseDragEnd1Pane send -X copy-selection-and-cancel",
@@ -425,16 +477,15 @@ key_bindings_init(void)
 		"bind -Tcopy-mode-vi C-Up send -X scroll-up",
 		"bind -Tcopy-mode-vi C-Down send -X scroll-down",
 	};
-	u_int		 i;
-	struct cmd_list	*cmdlist;
-	char		*cause;
+	u_int			 i;
+	struct cmd_parse_result	*pr;
 
 	for (i = 0; i < nitems(defaults); i++) {
-		cmdlist = cmd_string_parse(defaults[i], "<default>", i, &cause);
-		if (cmdlist == NULL)
+		pr = cmd_parse_from_string(defaults[i], NULL);
+		if (pr->status != CMD_PARSE_SUCCESS)
 			fatalx("bad default key: %s", defaults[i]);
-		cmdq_append(NULL, cmdq_get_command(cmdlist, NULL, NULL, 0));
-		cmd_list_free(cmdlist);
+		cmdq_append(NULL, cmdq_get_command(pr->cmdlist, NULL, NULL, 0));
+		cmd_list_free(pr->cmdlist);
 	}
 }
 
@@ -445,7 +496,7 @@ key_bindings_read_only(struct cmdq_item *item, __unused void *data)
 	return (CMD_RETURN_ERROR);
 }
 
-void
+struct cmdq_item *
 key_bindings_dispatch(struct key_binding *bd, struct cmdq_item *item,
     struct client *c, struct mouse_event *m, struct cmd_find_state *fs)
 {
@@ -453,12 +504,16 @@ key_bindings_dispatch(struct key_binding *bd, struct cmdq_item *item,
 	struct cmdq_item	*new_item;
 	int			 readonly;
 
-	readonly = 1;
-	TAILQ_FOREACH(cmd, &bd->cmdlist->list, qentry) {
-		if (!(cmd->entry->flags & CMD_READONLY))
-			readonly = 0;
+	if (c == NULL || (~c->flags & CLIENT_READONLY))
+		readonly = 1;
+	else {
+		readonly = 1;
+		TAILQ_FOREACH(cmd, &bd->cmdlist->list, qentry) {
+			if (~cmd->entry->flags & CMD_READONLY)
+				readonly = 0;
+		}
 	}
-	if (!readonly && (c->flags & CLIENT_READONLY))
+	if (!readonly)
 		new_item = cmdq_get_callback(key_bindings_read_only, NULL);
 	else {
 		new_item = cmdq_get_command(bd->cmdlist, fs, m, 0);
@@ -466,7 +521,8 @@ key_bindings_dispatch(struct key_binding *bd, struct cmdq_item *item,
 			new_item->shared->flags |= CMDQ_SHARED_REPEAT;
 	}
 	if (item != NULL)
-		cmdq_insert_after(item, new_item);
+		new_item = cmdq_insert_after(item, new_item);
 	else
-		cmdq_append(c, new_item);
+		new_item = cmdq_append(c, new_item);
+	return (new_item);
 }

key-string.c

@@ -159,7 +159,7 @@ key_string_get_modifiers(const char **string)
 key_code
 key_string_lookup_string(const char *string)
 {
-	static const char	*other = "!#()+,-.0123456789:;<=>?'\r\t";
+	static const char	*other = "!#()+,-.0123456789:;<=>'\r\t";
 	key_code		 key;
 	u_int			 u;
 	key_code		 modifiers;
@@ -196,7 +196,7 @@ key_string_lookup_string(const char *string)
 	/* Is this a standard ASCII key? */
 	if (string[1] == '\0' && (u_char)string[0] <= 127) {
 		key = (u_char)string[0];
-		if (key < 32 || key == 127)
+		if (key < 32)
 			return (KEYC_UNKNOWN);
 	} else {
 		/* Try as a UTF-8 key. */
@@ -226,6 +226,8 @@ key_string_lookup_string(const char *string)
 			key -= 64;
 		else if (key == 32)
 			key = 0;
+		else if (key == '?')
+			key = 127;
 		else if (key == 63)
 			key = KEYC_BSPACE;
 		else
@@ -240,58 +242,24 @@ key_string_lookup_string(const char *string)
 const char *
 key_string_lookup_key(key_code key)
 {
-	static char		out[32];
-	char			tmp[8];
-	u_int			i;
-	struct utf8_data	ud;
-	size_t			off;
+	static char		 out[32];
+	char			 tmp[8];
+	const char		*s;
+	u_int			 i;
+	struct utf8_data	 ud;
+	size_t			 off;
 
 	*out = '\0';
 
-	/* Handle no key. */
-	if (key == KEYC_NONE)
-		return ("None");
-
-	/* 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)
-		return ("Dragging");
-	if (key == KEYC_MOUSEMOVE_PANE)
-		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));
+	/* Literal keys are themselves. */
+	if (key & KEYC_LITERAL) {
+		snprintf(out, sizeof out, "%c", (int)(key & 0xff));
 		return (out);
 	}
 
-	/*
-	 * Special case: display C-@ as C-Space. Could do this below in
-	 * the (key >= 0 && key <= 32), but this way we let it be found
-	 * in key_string_table, for the unlikely chance that we might
-	 * change its name.
-	 */
+	/* Display C-@ as C-Space. */
 	if ((key & KEYC_MASK_KEY) == 0)
-	    key = ' ' | KEYC_CTRL | (key & KEYC_MASK_MOD);
+		key = ' ' | KEYC_CTRL | (key & KEYC_MASK_MOD);
 
 	/* Fill in the modifiers. */
 	if (key & KEYC_CTRL)
@@ -302,6 +270,69 @@ key_string_lookup_key(key_code key)
 		strlcat(out, "S-", sizeof out);
 	key &= KEYC_MASK_KEY;
 
+	/* Handle no key. */
+	if (key == KEYC_NONE)
+		return ("None");
+
+	/* Handle special keys. */
+	if (key == KEYC_UNKNOWN) {
+		s = "Unknown";
+		goto append;
+	}
+	if (key == KEYC_ANY) {
+		s = "Any";
+		goto append;
+	}
+	if (key == KEYC_FOCUS_IN) {
+		s = "FocusIn";
+		goto append;
+	}
+	if (key == KEYC_FOCUS_OUT) {
+		s = "FocusOut";
+		goto append;
+	}
+	if (key == KEYC_PASTE_START) {
+		s = "PasteStart";
+		goto append;
+	}
+	if (key == KEYC_PASTE_END) {
+		s = "PasteEnd";
+		goto append;
+	}
+	if (key == KEYC_MOUSE) {
+		s = "Mouse";
+		goto append;
+	}
+	if (key == KEYC_DRAGGING) {
+		s = "Dragging";
+		goto append;
+	}
+	if (key == KEYC_MOUSEMOVE_PANE) {
+		s = "MouseMovePane";
+		goto append;
+	}
+	if (key == KEYC_MOUSEMOVE_STATUS) {
+		s = "MouseMoveStatus";
+		goto append;
+	}
+	if (key == KEYC_MOUSEMOVE_STATUS_LEFT) {
+		s = "MouseMoveStatusLeft";
+		goto append;
+	}
+	if (key == KEYC_MOUSEMOVE_STATUS_RIGHT) {
+		s = "MouseMoveStatusRight";
+		goto append;
+	}
+	if (key == KEYC_MOUSEMOVE_BORDER) {
+		s = "MouseMoveBorder";
+		goto append;
+	}
+	if (key >= KEYC_USER && key < KEYC_USER + KEYC_NUSER) {
+		snprintf(tmp, sizeof tmp, "User%u", (u_int)(key - KEYC_USER));
+		strlcat(out, tmp, sizeof out);
+		return (out);
+	}
+
 	/* Try the key against the string table. */
 	for (i = 0; i < nitems(key_string_table); i++) {
 		if (key == key_string_table[i].key)
@@ -323,7 +354,7 @@ key_string_lookup_key(key_code key)
 	}
 
 	/* Invalid keys are errors. */
-	if (key == 127 || key > 255) {
+	if (key > 255) {
 		snprintf(out, sizeof out, "Invalid#%llx", key);
 		return (out);
 	}
@@ -337,9 +368,15 @@ key_string_lookup_key(key_code key)
 	} else if (key >= 32 && key <= 126) {
 		tmp[0] = key;
 		tmp[1] = '\0';
-	} else if (key >= 128)
+	} else if (key == 127)
+		xsnprintf(tmp, sizeof tmp, "C-?");
+	else if (key >= 128)
 		xsnprintf(tmp, sizeof tmp, "\\%llo", key);
 
 	strlcat(out, tmp, sizeof out);
 	return (out);
+
+append:
+	strlcat(out, s, sizeof out);
+	return (out);
 }

layout-custom.c

@@ -60,7 +60,7 @@ layout_checksum(const char *layout)
 char *
 layout_dump(struct layout_cell *root)
 {
-	char	layout[BUFSIZ], *out;
+	char	layout[8192], *out;
 
 	*layout = '\0';
 	if (layout_append(root, layout, sizeof layout) != 0)
@@ -116,13 +116,49 @@ layout_append(struct layout_cell *lc, char *buf, size_t len)
 	return (0);
 }
 
+/* Check layout sizes fit. */
+static int
+layout_check(struct layout_cell *lc)
+{
+	struct layout_cell	*lcchild;
+	u_int			 n = 0;
+
+	switch (lc->type) {
+	case LAYOUT_WINDOWPANE:
+		break;
+	case LAYOUT_LEFTRIGHT:
+		TAILQ_FOREACH(lcchild, &lc->cells, entry) {
+			if (lcchild->sy != lc->sy)
+				return (0);
+			if (!layout_check(lcchild))
+				return (0);
+			n += lcchild->sx + 1;
+		}
+		if (n - 1 != lc->sx)
+			return (0);
+		break;
+	case LAYOUT_TOPBOTTOM:
+		TAILQ_FOREACH(lcchild, &lc->cells, entry) {
+			if (lcchild->sx != lc->sx)
+				return (0);
+			if (!layout_check(lcchild))
+				return (0);
+			n += lcchild->sy + 1;
+		}
+		if (n - 1 != lc->sy)
+			return (0);
+		break;
+	}
+	return (1);
+}
+
 /* Parse a layout string and arrange window as layout. */
 int
 layout_parse(struct window *w, const char *layout)
 {
 	struct layout_cell	*lc, *lcchild;
 	struct window_pane	*wp;
-	u_int			 npanes, ncells, sx, sy;
+	u_int			 npanes, ncells, sx = 0, sy = 0;
 	u_short			 csum;
 
 	/* Check validity. */
@@ -153,9 +189,39 @@ layout_parse(struct window *w, const char *layout)
 		layout_destroy_cell(w, lcchild, &lc);
 	}
 
-	/* Save the old window size and resize to the layout size. */
-	sx = w->sx; sy = w->sy;
-	window_resize(w, lc->sx, lc->sy);
+	/*
+	 * It appears older versions of tmux were able to generate layouts with
+	 * an incorrect top cell size - if it is larger than the top child then
+	 * correct that (if this is still wrong the check code will catch it).
+	 */
+	switch (lc->type) {
+	case LAYOUT_WINDOWPANE:
+		break;
+	case LAYOUT_LEFTRIGHT:
+		TAILQ_FOREACH(lcchild, &lc->cells, entry) {
+			sy = lcchild->sy + 1;
+			sx += lcchild->sx + 1;
+		}
+		break;
+	case LAYOUT_TOPBOTTOM:
+		TAILQ_FOREACH(lcchild, &lc->cells, entry) {
+			sx = lcchild->sx + 1;
+			sy += lcchild->sy + 1;
+		}
+		break;
+	}
+	if (lc->type != LAYOUT_WINDOWPANE && (lc->sx != sx || lc->sy != sy)) {
+		log_debug("fix layout %u,%u to %u,%u", lc->sx, lc->sy, sx,sy);
+		layout_print_cell(lc, __func__, 0);
+		lc->sx = sx - 1; lc->sy = sy - 1;
+	}
+
+	/* Check the new layout. */
+	if (!layout_check(lc))
+		return (-1);
+
+	/* Resize to the layout size. */
+	window_resize(w, lc->sx, lc->sy, -1, -1);
 
 	/* Destroy the old layout and swap to the new. */
 	layout_free_cell(w->layout_root);
@@ -166,12 +232,9 @@ layout_parse(struct window *w, const char *layout)
 	layout_assign(&wp, lc);
 
 	/* Update pane offsets and sizes. */
-	layout_fix_offsets(lc);
+	layout_fix_offsets(w);
 	layout_fix_panes(w);
-
-	/* Then resize the layout back to the original window size. */
-	layout_resize(w, sx, sy);
-	window_resize(w, sx, sy);
+	recalculate_sizes();
 
 	layout_print_cell(lc, __func__, 0);
 

layout-set.c

@@ -158,12 +158,12 @@ layout_set_even(struct window *w, enum layout_type type)
 	layout_spread_cell(w, lc);
 
 	/* Fix cell offsets. */
-	layout_fix_offsets(lc);
+	layout_fix_offsets(w);
 	layout_fix_panes(w);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
-	window_resize(w, lc->sx, lc->sy);
+	window_resize(w, lc->sx, lc->sy, -1, -1);
 	notify_window("window-layout-changed", w);
 	server_redraw_window(w);
 }
@@ -185,7 +185,7 @@ layout_set_main_h(struct window *w)
 {
 	struct window_pane	*wp;
 	struct layout_cell	*lc, *lcmain, *lcother, *lcchild;
-	u_int			 n, mainh, otherh, sx;
+	u_int			 n, mainh, otherh, sx, sy;
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
@@ -195,22 +195,25 @@ layout_set_main_h(struct window *w)
 		return;
 	n--;	/* take off main pane */
 
+	/* Find available height - take off one line for the border. */
+	sy = w->sy - 1;
+
 	/* Get the main pane height and work out the other pane height. */
 	mainh = options_get_number(w->options, "main-pane-height");
-	if (mainh + PANE_MINIMUM + 1 >= w->sy) {
-		if (w->sy <= PANE_MINIMUM + 1 + PANE_MINIMUM)
+	if (mainh + PANE_MINIMUM >= sy) {
+		if (sy <= PANE_MINIMUM + PANE_MINIMUM)
 			mainh = PANE_MINIMUM;
 		else
-			mainh = w->sy - (PANE_MINIMUM + 1);
+			mainh = sy - PANE_MINIMUM;
 		otherh = PANE_MINIMUM;
 	} else {
 		otherh = options_get_number(w->options, "other-pane-height");
 		if (otherh == 0)
-			otherh = w->sy - mainh;
-		else if (otherh > w->sy || w->sy - otherh < mainh)
-			otherh = w->sy - mainh;
+			otherh = sy - mainh;
+		else if (otherh > sy || sy - otherh < mainh)
+			otherh = sy - mainh;
 		else
-			mainh = w->sy - otherh;
+			mainh = sy - otherh;
 	}
 
 	/* Work out what width is needed. */
@@ -221,7 +224,7 @@ layout_set_main_h(struct window *w)
 	/* Free old tree and create a new root. */
 	layout_free(w);
 	lc = w->layout_root = layout_create_cell(NULL);
-	layout_set_size(lc, sx, mainh + otherh, 0, 0);
+	layout_set_size(lc, sx, mainh + otherh + 1, 0, 0);
 	layout_make_node(lc, LAYOUT_TOPBOTTOM);
 
 	/* Create the main pane. */
@@ -254,12 +257,12 @@ layout_set_main_h(struct window *w)
 	}
 
 	/* Fix cell offsets. */
-	layout_fix_offsets(lc);
+	layout_fix_offsets(w);
 	layout_fix_panes(w);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
-	window_resize(w, lc->sx, lc->sy);
+	window_resize(w, lc->sx, lc->sy, -1, -1);
 	notify_window("window-layout-changed", w);
 	server_redraw_window(w);
 }
@@ -269,7 +272,7 @@ layout_set_main_v(struct window *w)
 {
 	struct window_pane	*wp;
 	struct layout_cell	*lc, *lcmain, *lcother, *lcchild;
-	u_int			 n, mainw, otherw, sy;
+	u_int			 n, mainw, otherw, sx, sy;
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
@@ -279,22 +282,25 @@ layout_set_main_v(struct window *w)
 		return;
 	n--;	/* take off main pane */
 
+	/* Find available width - take off one line for the border. */
+	sx = w->sx - 1;
+
 	/* Get the main pane width and work out the other pane width. */
 	mainw = options_get_number(w->options, "main-pane-width");
-	if (mainw + PANE_MINIMUM + 1 >= w->sx) {
-		if (w->sx <= PANE_MINIMUM + 1 + PANE_MINIMUM)
+	if (mainw + PANE_MINIMUM >= sx) {
+		if (sx <= PANE_MINIMUM + PANE_MINIMUM)
 			mainw = PANE_MINIMUM;
 		else
-			mainw = w->sx - (PANE_MINIMUM + 1);
+			mainw = sx - PANE_MINIMUM;
 		otherw = PANE_MINIMUM;
 	} else {
 		otherw = options_get_number(w->options, "other-pane-width");
 		if (otherw == 0)
-			otherw = w->sx - mainw;
-		else if (otherw > w->sx || w->sx - otherw < mainw)
-			otherw = w->sx - mainw;
+			otherw = sx - mainw;
+		else if (otherw > sx || sx - otherw < mainw)
+			otherw = sx - mainw;
 		else
-			mainw = w->sx - otherw;
+			mainw = sx - otherw;
 	}
 
 	/* Work out what height is needed. */
@@ -305,7 +311,7 @@ layout_set_main_v(struct window *w)
 	/* Free old tree and create a new root. */
 	layout_free(w);
 	lc = w->layout_root = layout_create_cell(NULL);
-	layout_set_size(lc, mainw + otherw, sy, 0, 0);
+	layout_set_size(lc, mainw + otherw + 1, sy, 0, 0);
 	layout_make_node(lc, LAYOUT_LEFTRIGHT);
 
 	/* Create the main pane. */
@@ -338,12 +344,12 @@ layout_set_main_v(struct window *w)
 	}
 
 	/* Fix cell offsets. */
-	layout_fix_offsets(lc);
+	layout_fix_offsets(w);
 	layout_fix_panes(w);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
-	window_resize(w, lc->sx, lc->sy);
+	window_resize(w, lc->sx, lc->sy, -1, -1);
 	notify_window("window-layout-changed", w);
 	server_redraw_window(w);
 }
@@ -447,12 +453,12 @@ layout_set_tiled(struct window *w)
 	}
 
 	/* Fix cell offsets. */
-	layout_fix_offsets(lc);
+	layout_fix_offsets(w);
 	layout_fix_panes(w);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
-	window_resize(w, lc->sx, lc->sy);
+	window_resize(w, lc->sx, lc->sy, -1, -1);
 	notify_window("window-layout-changed", w);
 	server_redraw_window(w);
 }

layout.c

@@ -39,7 +39,6 @@ static int	layout_resize_pane_grow(struct window *, struct layout_cell *,
 		    enum layout_type, int, int);
 static int	layout_resize_pane_shrink(struct window *, struct layout_cell *,
 		    enum layout_type, int);
-static int	layout_need_status(struct layout_cell *, int);
 static u_int	layout_new_pane_size(struct window *, u_int,
 		    struct layout_cell *, enum layout_type, u_int, u_int,
 		    u_int);
@@ -199,9 +198,9 @@ layout_make_node(struct layout_cell *lc, enum layout_type type)
 	lc->wp = NULL;
 }
 
-/* Fix cell offsets based on their sizes. */
-void
-layout_fix_offsets(struct layout_cell *lc)
+/* Fix cell offsets for a child cell. */
+static void
+layout_fix_offsets1(struct layout_cell *lc)
 {
 	struct layout_cell	*lcchild;
 	u_int			 xoff, yoff;
@@ -212,7 +211,7 @@ layout_fix_offsets(struct layout_cell *lc)
 			lcchild->xoff = xoff;
 			lcchild->yoff = lc->yoff;
 			if (lcchild->type != LAYOUT_WINDOWPANE)
-				layout_fix_offsets(lcchild);
+				layout_fix_offsets1(lcchild);
 			xoff += lcchild->sx + 1;
 		}
 	} else {
@@ -221,61 +220,92 @@ layout_fix_offsets(struct layout_cell *lc)
 			lcchild->xoff = lc->xoff;
 			lcchild->yoff = yoff;
 			if (lcchild->type != LAYOUT_WINDOWPANE)
-				layout_fix_offsets(lcchild);
+				layout_fix_offsets1(lcchild);
 			yoff += lcchild->sy + 1;
 		}
 	}
 }
 
-/*
- * Returns 1 if we need to reserve space for the pane status line. This is the
- * case for the most upper panes only.
- */
-static int
-layout_need_status(struct layout_cell *lc, int at_top)
+/* Update cell offsets based on their sizes. */
+void
+layout_fix_offsets(struct window *w)
 {
-	struct layout_cell	*first_lc;
+	struct layout_cell      *lc = w->layout_root;
 
-	if (lc->parent != NULL) {
-		if (lc->parent->type == LAYOUT_LEFTRIGHT)
-			return (layout_need_status(lc->parent, at_top));
+	lc->xoff = 0;
+	lc->yoff = 0;
 
-		if (at_top)
-			first_lc = TAILQ_FIRST(&lc->parent->cells);
-		else
-			first_lc = TAILQ_LAST(&lc->parent->cells,layout_cells);
-		if (lc == first_lc)
-			return (layout_need_status(lc->parent, at_top));
-		return (0);
+	layout_fix_offsets1(lc);
+}
+
+/* Is this a top cell? */
+static int
+layout_cell_is_top(struct window *w, struct layout_cell *lc)
+{
+	struct layout_cell	*next;
+
+	while (lc != w->layout_root) {
+		next = lc->parent;
+		if (next->type == LAYOUT_TOPBOTTOM &&
+		    lc != TAILQ_FIRST(&next->cells))
+			return (0);
+		lc = next;
 	}
 	return (1);
 }
 
+/* Is this a bottom cell? */
+static int
+layout_cell_is_bottom(struct window *w, struct layout_cell *lc)
+{
+	struct layout_cell	*next;
+
+	while (lc != w->layout_root) {
+		next = lc->parent;
+		if (next->type == LAYOUT_TOPBOTTOM &&
+		    lc != TAILQ_LAST(&next->cells, layout_cells))
+			return (0);
+		lc = next;
+	}
+	return (1);
+}
+
+/*
+ * Returns 1 if we need to add an extra line for the pane status line. This is
+ * the case for the most upper or lower panes only.
+ */
+static int
+layout_add_border(struct window *w, struct layout_cell *lc, int status)
+{
+	if (status == PANE_STATUS_TOP)
+		return (layout_cell_is_top(w, lc));
+	if (status == PANE_STATUS_BOTTOM)
+		return (layout_cell_is_bottom(w, lc));
+	return (0);
+}
+
 /* Update pane offsets and sizes based on their cells. */
 void
 layout_fix_panes(struct window *w)
 {
 	struct window_pane	*wp;
 	struct layout_cell	*lc;
-	int			 shift, status;
+	int			 status;
 
 	status = options_get_number(w->options, "pane-border-status");
 	TAILQ_FOREACH(wp, &w->panes, entry) {
 		if ((lc = wp->layout_cell) == NULL)
 			continue;
 
-		if (status != 0)
-			shift = layout_need_status(lc, status == 1);
-		else
-			shift = 0;
-
 		wp->xoff = lc->xoff;
 		wp->yoff = lc->yoff;
 
-		if (shift && status == 1)
-			wp->yoff += 1;
-
-		window_pane_resize(wp, lc->sx, lc->sy - shift);
+		if (layout_add_border(w, lc, status)) {
+			if (status == PANE_STATUS_TOP)
+				wp->yoff++;
+			window_pane_resize(wp, lc->sx, lc->sy - 1);
+		} else
+			window_pane_resize(wp, lc->sx, lc->sy);
 	}
 }
 
@@ -312,13 +342,15 @@ layout_resize_check(struct window *w, struct layout_cell *lc,
 	status = options_get_number(w->options, "pane-border-status");
 	if (lc->type == LAYOUT_WINDOWPANE) {
 		/* Space available in this cell only. */
-		minimum = PANE_MINIMUM;
-		if (type == LAYOUT_LEFTRIGHT)
+		if (type == LAYOUT_LEFTRIGHT) {
 			available = lc->sx;
-		else {
+			minimum = PANE_MINIMUM;
+		} else {
 			available = lc->sy;
-			if (status != 0)
-				minimum += layout_need_status(lc, status == 1);
+			if (layout_add_border(w, lc, status))
+				minimum = PANE_MINIMUM + 1;
+			else
+				minimum = PANE_MINIMUM;
 		}
 		if (available > minimum)
 			available -= minimum;
@@ -414,9 +446,9 @@ layout_destroy_cell(struct window *w, struct layout_cell *lc,
 		lcother = TAILQ_NEXT(lc, entry);
 	else
 		lcother = TAILQ_PREV(lc, layout_cells, entry);
-	if (lcparent->type == LAYOUT_LEFTRIGHT)
+	if (lcother != NULL && lcparent->type == LAYOUT_LEFTRIGHT)
 		layout_resize_adjust(w, lcother, lcparent->type, lc->sx + 1);
-	else
+	else if (lcother != NULL)
 		layout_resize_adjust(w, lcother, lcparent->type, lc->sy + 1);
 
 	/* Remove this from the parent's list. */
@@ -507,7 +539,7 @@ layout_resize(struct window *w, u_int sx, u_int sy)
 		layout_resize_adjust(w, lc, LAYOUT_TOPBOTTOM, ychange);
 
 	/* Fix cell offsets. */
-	layout_fix_offsets(lc);
+	layout_fix_offsets(w);
 	layout_fix_panes(w);
 }
 
@@ -567,7 +599,7 @@ layout_resize_layout(struct window *w, struct layout_cell *lc,
 	}
 
 	/* Fix cell offsets. */
-	layout_fix_offsets(w->layout_root);
+	layout_fix_offsets(w);
 	layout_fix_panes(w);
 	notify_window("window-layout-changed", w);
 }
@@ -831,12 +863,12 @@ layout_resize_child_cells(struct window *w, struct layout_cell *lc)
  */
 struct layout_cell *
 layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
-    int insert_before, int full_size)
+    int flags)
 {
 	struct layout_cell     *lc, *lcparent, *lcnew, *lc1, *lc2;
 	u_int			sx, sy, xoff, yoff, size1, size2, minimum;
 	u_int			new_size, saved_size, resize_first = 0;
-	int			status;
+	int			full_size = (flags & SPAWN_FULLSIZE), status;
 
 	/*
 	 * If full_size is specified, add a new cell at the top of the window
@@ -861,9 +893,10 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
 			return (NULL);
 		break;
 	case LAYOUT_TOPBOTTOM:
-		minimum = PANE_MINIMUM * 2 + 1;
-		if (status != 0)
-			minimum += layout_need_status(lc, status == 1);
+		if (layout_add_border(wp->window, lc, status))
+			minimum = PANE_MINIMUM * 2 + 2;
+		else
+			minimum = PANE_MINIMUM * 2 + 1;
 		if (sy < minimum)
 			return (NULL);
 		break;
@@ -881,7 +914,7 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
 		saved_size = sy;
 	if (size < 0)
 		size2 = ((saved_size + 1) / 2) - 1;
-	else if (insert_before)
+	else if (flags & SPAWN_BEFORE)
 		size2 = saved_size - size - 1;
 	else
 		size2 = size;
@@ -892,7 +925,7 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
 	size1 = saved_size - 1 - size2;
 
 	/* Which size are we using? */
-	if (insert_before)
+	if (flags & SPAWN_BEFORE)
 		new_size = size2;
 	else
 		new_size = size1;
@@ -908,7 +941,7 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
 		 */
 		lcparent = lc->parent;
 		lcnew = layout_create_cell(lcparent);
-		if (insert_before)
+		if (flags & SPAWN_BEFORE)
 			TAILQ_INSERT_BEFORE(lc, lcnew, entry);
 		else
 			TAILQ_INSERT_AFTER(&lcparent->cells, lc, lcnew, entry);
@@ -937,7 +970,7 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
 			layout_set_size(lcnew, size, sy, 0, 0);
 		else if (lc->type == LAYOUT_TOPBOTTOM)
 			layout_set_size(lcnew, sx, size, 0, 0);
-		if (insert_before)
+		if (flags & SPAWN_BEFORE)
 			TAILQ_INSERT_HEAD(&lc->cells, lcnew, entry);
 		else
 			TAILQ_INSERT_TAIL(&lc->cells, lcnew, entry);
@@ -961,12 +994,12 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
 
 		/* Create the new child cell. */
 		lcnew = layout_create_cell(lcparent);
-		if (insert_before)
+		if (flags & SPAWN_BEFORE)
 			TAILQ_INSERT_HEAD(&lcparent->cells, lcnew, entry);
 		else
 			TAILQ_INSERT_TAIL(&lcparent->cells, lcnew, entry);
 	}
-	if (insert_before) {
+	if (flags & SPAWN_BEFORE) {
 		lc1 = lcnew;
 		lc2 = lc;
 	} else {
@@ -988,7 +1021,7 @@ layout_split_pane(struct window_pane *wp, enum layout_type type, int size,
 	if (full_size) {
 		if (!resize_first)
 			layout_resize_child_cells(wp->window, lc);
-		layout_fix_offsets(wp->window->layout_root);
+		layout_fix_offsets(wp->window);
 	} else
 		layout_make_leaf(lc, wp);
 
@@ -1006,7 +1039,7 @@ layout_close_pane(struct window_pane *wp)
 
 	/* Fix pane offsets and sizes. */
 	if (w->layout_root != NULL) {
-		layout_fix_offsets(w->layout_root);
+		layout_fix_offsets(w);
 		layout_fix_panes(w);
 	}
 	notify_window("window-layout-changed", w);
@@ -1021,7 +1054,7 @@ layout_spread_cell(struct window *w, struct layout_cell *parent)
 
 	number = 0;
 	TAILQ_FOREACH (lc, &parent->cells, entry)
-	    number++;
+		number++;
 	if (number <= 1)
 		return (0);
 	status = options_get_number(w->options, "pane-border-status");
@@ -1029,9 +1062,10 @@ layout_spread_cell(struct window *w, struct layout_cell *parent)
 	if (parent->type == LAYOUT_LEFTRIGHT)
 		size = parent->sx;
 	else if (parent->type == LAYOUT_TOPBOTTOM) {
-		size = parent->sy;
-		if (status != 0)
-			size -= layout_need_status(parent, status == 1);
+		if (layout_add_border(w, parent, status))
+			size = parent->sy - 1;
+		else
+			size = parent->sy;
 	} else
 		return (0);
 	if (size < number - 1)
@@ -1049,9 +1083,10 @@ layout_spread_cell(struct window *w, struct layout_cell *parent)
 			change = each - (int)lc->sx;
 			layout_resize_adjust(w, lc, LAYOUT_LEFTRIGHT, change);
 		} else if (parent->type == LAYOUT_TOPBOTTOM) {
-			this = each;
-			if (status != 0)
-				this += layout_need_status(lc, status == 1);
+			if (layout_add_border(w, lc, status))
+				this = each + 1;
+			else
+				this = each;
 			change = this - (int)lc->sy;
 			layout_resize_adjust(w, lc, LAYOUT_TOPBOTTOM, change);
 		}
@@ -1073,7 +1108,7 @@ layout_spread_out(struct window_pane *wp)
 
 	do {
 		if (layout_spread_cell(w, parent)) {
-			layout_fix_offsets(parent);
+			layout_fix_offsets(w);
 			layout_fix_panes(w);
 			break;
 		}

log.c

@@ -130,6 +130,9 @@ log_debug(const char *msg, ...)
 {
 	va_list	ap;
 
+	if (log_file == NULL)
+		return;
+
 	va_start(ap, msg);
 	log_vwrite(msg, ap);
 	va_end(ap);

menu.c

@@ -0,0 +1,323 @@
+/* $OpenBSD$ */
+
+/*
+ * 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"
+
+struct menu_data {
+	struct cmdq_item	*item;
+	int			 flags;
+
+	struct cmd_find_state	 fs;
+	struct screen		 s;
+
+	u_int			 px;
+	u_int			 py;
+
+	struct menu		*menu;
+	int			 choice;
+
+	menu_choice_cb		 cb;
+	void			*data;
+};
+
+void
+menu_add_items(struct menu *menu, const struct menu_item *items,
+    struct cmdq_item *qitem, struct client *c, struct cmd_find_state *fs)
+{
+	const struct menu_item	*loop;
+
+	for (loop = items; loop->name != NULL; loop++)
+		menu_add_item(menu, loop, qitem, c, fs);
+}
+
+void
+menu_add_item(struct menu *menu, const struct menu_item *item,
+    struct cmdq_item *qitem, struct client *c, struct cmd_find_state *fs)
+{
+	struct menu_item	*new_item;
+	const char		*key, *cmd;
+	char			*s, *name;
+	u_int			 width;
+	int			 line;
+
+	line = (item == NULL || item->name == NULL || *item->name == '\0');
+	if (line && menu->count == 0)
+		return;
+
+	menu->items = xreallocarray(menu->items, menu->count + 1,
+	    sizeof *menu->items);
+	new_item = &menu->items[menu->count++];
+	memset(new_item, 0, sizeof *new_item);
+
+	if (line)
+		return;
+
+	if (fs != NULL)
+		s = format_single(qitem, item->name, c, fs->s, fs->wl, fs->wp);
+	else
+		s = format_single(qitem, item->name, c, NULL, NULL, NULL);
+	if (*s == '\0') { /* no item if empty after format expanded */
+		menu->count--;
+		return;
+	}
+	if (*s != '-' && item->key != KEYC_UNKNOWN && item->key != KEYC_NONE) {
+		key = key_string_lookup_key(item->key);
+		xasprintf(&name, "%s#[default] #[align=right](%s)", s, key);
+	} else
+		xasprintf(&name, "%s", s);
+	new_item->name = name;
+	free(s);
+
+	cmd = item->command;
+	if (cmd != NULL) {
+		if (fs != NULL)
+			s = format_single(qitem, cmd, c, fs->s, fs->wl, fs->wp);
+		else
+			s = format_single(qitem, cmd, c, NULL, NULL, NULL);
+	} else
+		s = NULL;
+	new_item->command = s;
+	new_item->key = item->key;
+
+	width = format_width(new_item->name);
+	if (width > menu->width)
+		menu->width = width;
+}
+
+struct menu *
+menu_create(const char *title)
+{
+	struct menu	*menu;
+
+	menu = xcalloc(1, sizeof *menu);
+	menu->title = xstrdup(title);
+
+	return (menu);
+}
+
+void
+menu_free(struct menu *menu)
+{
+	u_int	i;
+
+	for (i = 0; i < menu->count; i++) {
+		free((void *)menu->items[i].name);
+		free((void *)menu->items[i].command);
+	}
+	free(menu->items);
+
+	free((void *)menu->title);
+	free(menu);
+}
+
+static void
+menu_draw_cb(struct client *c, __unused struct screen_redraw_ctx *ctx0)
+{
+	struct menu_data	*md = c->overlay_data;
+	struct tty		*tty = &c->tty;
+	struct screen		*s = &md->s;
+	struct menu		*menu = md->menu;
+	struct screen_write_ctx	 ctx;
+	u_int			 i, px, py;
+
+	screen_write_start(&ctx, NULL, s);
+	screen_write_clearscreen(&ctx, 8);
+	screen_write_menu(&ctx, menu, md->choice);
+	screen_write_stop(&ctx);
+
+	px = md->px;
+	py = md->py;
+
+	for (i = 0; i < screen_size_y(&md->s); i++)
+		tty_draw_line(tty, NULL, s, 0, i, menu->width + 4, px, py + i);
+
+	if (~md->flags & MENU_NOMOUSE)
+		tty_update_mode(tty, MODE_MOUSE_ALL, NULL);
+}
+
+static void
+menu_free_cb(struct client *c)
+{
+	struct menu_data	*md = c->overlay_data;
+
+	if (md->item != NULL)
+		cmdq_continue(md->item);
+
+	if (md->cb != NULL)
+		md->cb(md->menu, UINT_MAX, KEYC_NONE, md->data);
+
+	screen_free(&md->s);
+	menu_free(md->menu);
+	free(md);
+}
+
+static int
+menu_key_cb(struct client *c, struct key_event *event)
+{
+	struct menu_data		*md = c->overlay_data;
+	struct menu			*menu = md->menu;
+	struct mouse_event		*m = &event->m;
+	u_int				 i;
+	int				 count = menu->count, old = md->choice;
+	const struct menu_item		*item;
+	struct cmdq_item		*new_item;
+	struct cmd_parse_result		*pr;
+	const char			*name;
+
+	if (KEYC_IS_MOUSE(event->key)) {
+		if (md->flags & MENU_NOMOUSE) {
+			if (MOUSE_BUTTONS(m->b) != 0)
+				return (1);
+			return (0);
+		}
+		if (m->x < md->px ||
+		    m->x > md->px + 4 + menu->width ||
+		    m->y < md->py + 1 ||
+		    m->y > md->py + 1 + count - 1) {
+			if (MOUSE_RELEASE(m->b))
+				return (1);
+			if (md->choice != -1) {
+				md->choice = -1;
+				c->flags |= CLIENT_REDRAWOVERLAY;
+			}
+			return (0);
+		}
+		if (MOUSE_RELEASE(m->b))
+			goto chosen;
+		md->choice = m->y - (md->py + 1);
+		if (md->choice != old)
+			c->flags |= CLIENT_REDRAWOVERLAY;
+		return (0);
+	}
+	for (i = 0; i < (u_int)count; i++) {
+		name = menu->items[i].name;
+		if (name == NULL || *name == '-')
+			continue;
+		if (event->key == menu->items[i].key) {
+			md->choice = i;
+			goto chosen;
+		}
+	}
+	switch (event->key) {
+	case KEYC_UP:
+	case 'k':
+		if (old == -1)
+			old = 0;
+		do {
+			if (md->choice == -1 || md->choice == 0)
+				md->choice = count - 1;
+			else
+				md->choice--;
+			name = menu->items[md->choice].name;
+		} while ((name == NULL || *name == '-') && md->choice != old);
+		c->flags |= CLIENT_REDRAWOVERLAY;
+		return (0);
+	case KEYC_DOWN:
+	case 'j':
+		if (old == -1)
+			old = 0;
+		do {
+			if (md->choice == -1 || md->choice == count - 1)
+				md->choice = 0;
+			else
+				md->choice++;
+			name = menu->items[md->choice].name;
+		} while ((name == NULL || *name == '-') && md->choice != old);
+		c->flags |= CLIENT_REDRAWOVERLAY;
+		return (0);
+	case '\r':
+		goto chosen;
+	case '\033': /* Escape */
+	case '\003': /* C-c */
+	case '\007': /* C-g */
+	case 'q':
+		return (1);
+	}
+	return (0);
+
+chosen:
+	if (md->choice == -1)
+		return (1);
+	item = &menu->items[md->choice];
+	if (item->name == NULL || *item->name == '-')
+		return (1);
+	if (md->cb != NULL) {
+	    md->cb(md->menu, md->choice, item->key, md->data);
+	    md->cb = NULL;
+	    return (1);
+	}
+
+	pr = cmd_parse_from_string(item->command, NULL);
+	switch (pr->status) {
+	case CMD_PARSE_EMPTY:
+		new_item = NULL;
+		break;
+	case CMD_PARSE_ERROR:
+		new_item = cmdq_get_error(pr->error);
+		free(pr->error);
+		cmdq_append(c, new_item);
+		break;
+	case CMD_PARSE_SUCCESS:
+		if (md->item != NULL)
+			m = &md->item->shared->mouse;
+		else
+			m = NULL;
+		new_item = cmdq_get_command(pr->cmdlist, &md->fs, m, 0);
+		cmd_list_free(pr->cmdlist);
+		cmdq_append(c, new_item);
+		break;
+	}
+	return (1);
+}
+
+int
+menu_display(struct menu *menu, int flags, struct cmdq_item *item, u_int px,
+    u_int py, struct client *c, struct cmd_find_state *fs, menu_choice_cb cb,
+    void *data)
+{
+	struct menu_data	*md;
+
+	if (c->tty.sx < menu->width + 4 || c->tty.sy < menu->count + 2)
+		return (-1);
+
+	md = xcalloc(1, sizeof *md);
+	md->item = item;
+	md->flags = flags;
+
+	if (fs != NULL)
+		cmd_find_copy_state(&md->fs, fs);
+	screen_init(&md->s, menu->width + 4, menu->count + 2, 0);
+
+	md->px = px;
+	md->py = py;
+
+	md->menu = menu;
+	md->choice = -1;
+
+	md->cb = cb;
+	md->data = data;
+
+	server_client_set_overlay(c, 0, menu_draw_cb, menu_key_cb, menu_free_cb,
+	    md);
+	return (0);
+}

mode-tree.c

@@ -35,14 +35,16 @@ struct mode_tree_data {
 
 	struct window_pane	 *wp;
 	void			 *modedata;
+	const struct menu_item	 *menu;
 
 	const char		**sort_list;
 	u_int			  sort_size;
-	u_int			  sort_type;
+	struct mode_tree_sort_criteria sort_crit;
 
 	mode_tree_build_cb        buildcb;
 	mode_tree_draw_cb         drawcb;
 	mode_tree_search_cb       searchcb;
+	mode_tree_menu_cb         menucb;
 
 	struct mode_tree_list	  children;
 	struct mode_tree_list	  saved;
@@ -89,8 +91,24 @@ struct mode_tree_line {
 	int				 flat;
 };
 
+struct mode_tree_menu {
+	struct mode_tree_data		*data;
+	struct client			*c;
+	u_int				 line;
+	void				*itemdata;
+};
+
 static void mode_tree_free_items(struct mode_tree_list *);
 
+static const struct menu_item mode_tree_menu_items[] = {
+	{ "Scroll Left", '<', NULL },
+	{ "Scroll Right", '>', NULL },
+	{ "", KEYC_NONE, NULL },
+	{ "Cancel", 'q', NULL },
+
+	{ NULL, KEYC_NONE, NULL }
+};
+
 static struct mode_tree_item *
 mode_tree_find_item(struct mode_tree_list *mtl, uint64_t tag)
 {
@@ -299,8 +317,9 @@ mode_tree_each_tagged(struct mode_tree_data *mtd, mode_tree_each_cb cb,
 struct mode_tree_data *
 mode_tree_start(struct window_pane *wp, struct args *args,
     mode_tree_build_cb buildcb, mode_tree_draw_cb drawcb,
-    mode_tree_search_cb searchcb, void *modedata, const char **sort_list,
-    u_int sort_size, struct screen **s)
+    mode_tree_search_cb searchcb, mode_tree_menu_cb menucb, void *modedata,
+    const struct menu_item *menu, const char **sort_list, u_int sort_size,
+    struct screen **s)
 {
 	struct mode_tree_data	*mtd;
 	const char		*sort;
@@ -311,10 +330,10 @@ mode_tree_start(struct window_pane *wp, struct args *args,
 
 	mtd->wp = wp;
 	mtd->modedata = modedata;
+	mtd->menu = menu;
 
 	mtd->sort_list = sort_list;
 	mtd->sort_size = sort_size;
-	mtd->sort_type = 0;
 
 	mtd->preview = !args_has(args, 'N');
 
@@ -322,9 +341,10 @@ mode_tree_start(struct window_pane *wp, struct args *args,
 	if (sort != NULL) {
 		for (i = 0; i < sort_size; i++) {
 			if (strcasecmp(sort, sort_list[i]) == 0)
-				mtd->sort_type = i;
+				mtd->sort_crit.field = i;
 		}
 	}
+	mtd->sort_crit.reversed = args_has(args, 'r');
 
 	if (args_has(args, 'f'))
 		mtd->filter = xstrdup(args_get(args, 'f'));
@@ -334,6 +354,7 @@ mode_tree_start(struct window_pane *wp, struct args *args,
 	mtd->buildcb = buildcb;
 	mtd->drawcb = drawcb;
 	mtd->searchcb = searchcb;
+	mtd->menucb = menucb;
 
 	TAILQ_INIT(&mtd->children);
 
@@ -366,15 +387,15 @@ mode_tree_build(struct mode_tree_data *mtd)
 	if (mtd->line_list != NULL)
 		tag = mtd->line_list[mtd->current].item->tag;
 	else
-		tag = 0;
+		tag = UINT64_MAX;
 
 	TAILQ_CONCAT(&mtd->saved, &mtd->children, entry);
 	TAILQ_INIT(&mtd->children);
 
-	mtd->buildcb(mtd->modedata, mtd->sort_type, &tag, mtd->filter);
+	mtd->buildcb(mtd->modedata, &mtd->sort_crit, &tag, mtd->filter);
 	mtd->no_matches = TAILQ_EMPTY(&mtd->children);
 	if (mtd->no_matches)
-		mtd->buildcb(mtd->modedata, mtd->sort_type, &tag, NULL);
+		mtd->buildcb(mtd->modedata, &mtd->sort_crit, &tag, NULL);
 
 	mode_tree_free_items(&mtd->saved);
 	TAILQ_INIT(&mtd->saved);
@@ -382,6 +403,8 @@ mode_tree_build(struct mode_tree_data *mtd)
 	mode_tree_clear_lines(mtd);
 	mode_tree_build_lines(mtd, &mtd->children, 0);
 
+	if (tag == UINT64_MAX)
+		tag = mtd->line_list[mtd->current].item->tag;
 	mode_tree_set_current(mtd, tag);
 
 	mtd->width = screen_size_x(s);
@@ -457,7 +480,7 @@ mode_tree_add(struct mode_tree_data *mtd, struct mode_tree_item *parent,
 
 	saved = mode_tree_find_item(&mtd->saved, tag);
 	if (saved != NULL) {
-		if (parent == NULL || (parent != NULL && parent->expanded))
+		if (parent == NULL || parent->expanded)
 			mti->tagged = saved->tagged;
 		mti->expanded = saved->expanded;
 	} else if (expanded == -1)
@@ -575,6 +598,8 @@ mode_tree_draw(struct mode_tree_data *mtd)
 		xasprintf(&text, "%-*s%s%s%s: ", keylen, key, start, mti->name,
 		    tag);
 		width = utf8_cstrwidth(text);
+		if (width > w)
+			width = w;
 		free(start);
 
 		if (mti->tagged) {
@@ -584,11 +609,11 @@ mode_tree_draw(struct mode_tree_data *mtd)
 
 		if (i != mtd->current) {
 			screen_write_clearendofline(&ctx, 8);
-			screen_write_puts(&ctx, &gc0, "%s", text);
+			screen_write_nputs(&ctx, w, &gc0, "%s", text);
 			format_draw(&ctx, &gc0, w - width, mti->text, NULL);
 		} else {
 			screen_write_clearendofline(&ctx, gc.bg);
-			screen_write_puts(&ctx, &gc, "%s", text);
+			screen_write_nputs(&ctx, w, &gc, "%s", text);
 			format_draw(&ctx, &gc, w - width, mti->text, NULL);
 		}
 		free(text);
@@ -611,8 +636,9 @@ mode_tree_draw(struct mode_tree_data *mtd)
 	screen_write_cursormove(&ctx, 0, h, 0);
 	screen_write_box(&ctx, w, sy - h);
 
-	xasprintf(&text, " %s (sort: %s)", mti->name,
-	    mtd->sort_list[mtd->sort_type]);
+	xasprintf(&text, " %s (sort: %s%s)", mti->name,
+	    mtd->sort_list[mtd->sort_crit.field],
+	    mtd->sort_crit.reversed ? ", reversed" : "");
 	if (w - 2 >= strlen(text)) {
 		screen_write_cursormove(&ctx, 1, h, 0);
 		screen_write_puts(&ctx, &gc0, "%s", text);
@@ -762,6 +788,70 @@ mode_tree_filter_free(void *data)
 	mode_tree_remove_ref(data);
 }
 
+static void
+mode_tree_menu_callback(__unused struct menu *menu, __unused u_int idx,
+    key_code key, void *data)
+{
+	struct mode_tree_menu		*mtm = data;
+	struct mode_tree_data		*mtd = mtm->data;
+	struct mode_tree_item		*mti;
+
+	if (mtd->dead || key == KEYC_NONE)
+		goto out;
+
+	if (mtm->line >= mtd->line_size)
+		goto out;
+	mti = mtd->line_list[mtm->line].item;
+	if (mti->itemdata != mtm->itemdata)
+		goto out;
+	mtd->current = mtm->line;
+	mtd->menucb (mtd->modedata, mtm->c, key);
+
+out:
+	mode_tree_remove_ref(mtd);
+	free(mtm);
+}
+
+static void
+mode_tree_display_menu(struct mode_tree_data *mtd, struct client *c, u_int x,
+    u_int y, int outside)
+{
+	struct mode_tree_item	*mti;
+	struct menu		*menu;
+	const struct menu_item	*items;
+	struct mode_tree_menu	*mtm;
+	char			*title;
+	u_int			 line;
+
+	if (mtd->offset + y > mtd->line_size - 1)
+		line = mtd->current;
+	else
+		line = mtd->offset + y;
+	mti = mtd->line_list[line].item;
+
+	if (!outside) {
+		items = mtd->menu;
+		xasprintf(&title, "#[align=centre]%s", mti->name);
+	} else {
+		items = mode_tree_menu_items;
+		title = xstrdup("");
+	}
+	menu = menu_create(title);
+	menu_add_items(menu, items, NULL, NULL, NULL);
+	free(title);
+
+	mtm = xmalloc(sizeof *mtm);
+	mtm->data = mtd;
+	mtm->c = c;
+	mtm->line = line;
+	mtm->itemdata = mti->itemdata;
+	mtd->references++;
+
+	if (menu_display(menu, 0, NULL, x, y, c, NULL, mode_tree_menu_callback,
+	    mtm) != 0)
+		menu_free(menu);
+}
+
 int
 mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
     struct mouse_event *m, u_int *xp, u_int *yp)
@@ -772,7 +862,7 @@ mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
 	int			 choice;
 	key_code		 tmp;
 
-	if (KEYC_IS_MOUSE(*key)) {
+	if (KEYC_IS_MOUSE(*key) && m != NULL) {
 		if (cmd_mouse_at(mtd->wp, m, &x, &y, 0) != 0) {
 			*key = KEYC_NONE;
 			return (0);
@@ -782,20 +872,29 @@ mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
 		if (yp != NULL)
 			*yp = y;
 		if (x > mtd->width || y > mtd->height) {
+			if (*key == KEYC_MOUSEDOWN3_PANE)
+				mode_tree_display_menu(mtd, c, x, y, 1);
 			if (!mtd->preview)
 				*key = KEYC_NONE;
 			return (0);
 		}
 		if (mtd->offset + y < mtd->line_size) {
 			if (*key == KEYC_MOUSEDOWN1_PANE ||
+			    *key == KEYC_MOUSEDOWN3_PANE ||
 			    *key == KEYC_DOUBLECLICK1_PANE)
 				mtd->current = mtd->offset + y;
 			if (*key == KEYC_DOUBLECLICK1_PANE)
 				*key = '\r';
-			else
+			else {
+				if (*key == KEYC_MOUSEDOWN3_PANE)
+					mode_tree_display_menu(mtd, c, x, y, 0);
 				*key = KEYC_NONE;
-		} else
+			}
+		} else {
+			if (*key == KEYC_MOUSEDOWN3_PANE)
+				mode_tree_display_menu(mtd, c, x, y, 0);
 			*key = KEYC_NONE;
+		}
 		return (0);
 	}
 
@@ -837,6 +936,7 @@ mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
 	case '\016': /* C-n */
 		mode_tree_down(mtd, 1);
 		break;
+	case 'g':
 	case KEYC_PPAGE:
 	case '\002': /* C-b */
 		for (i = 0; i < mtd->height; i++) {
@@ -845,6 +945,7 @@ mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
 			mode_tree_up(mtd, 1);
 		}
 		break;
+	case 'G':
 	case KEYC_NPAGE:
 	case '\006': /* C-f */
 		for (i = 0; i < mtd->height; i++) {
@@ -879,7 +980,8 @@ mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
 			current->tagged = 1;
 		} else
 			current->tagged = 0;
-		mode_tree_down(mtd, 0);
+		if (m != NULL)
+			mode_tree_down(mtd, 0);
 		break;
 	case 'T':
 		for (i = 0; i < mtd->line_size; i++)
@@ -894,9 +996,13 @@ mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
 		}
 		break;
 	case 'O':
-		mtd->sort_type++;
-		if (mtd->sort_type == mtd->sort_size)
-			mtd->sort_type = 0;
+		mtd->sort_crit.field++;
+		if (mtd->sort_crit.field == mtd->sort_size)
+			mtd->sort_crit.field = 0;
+		mode_tree_build(mtd);
+		break;
+	case 'r':
+		mtd->sort_crit.reversed = !mtd->sort_crit.reversed;
 		mode_tree_build(mtd);
 		break;
 	case KEYC_LEFT:
@@ -922,6 +1028,8 @@ mode_tree_key(struct mode_tree_data *mtd, struct client *c, key_code *key,
 			mode_tree_build(mtd);
 		}
 		break;
+	case '?':
+	case '/':
 	case '\023': /* C-s */
 		mtd->references++;
 		status_prompt_set(c, "(search) ", "",
@@ -952,8 +1060,8 @@ mode_tree_run_command(struct client *c, struct cmd_find_state *fs,
     const char *template, const char *name)
 {
 	struct cmdq_item	*new_item;
-	struct cmd_list		*cmdlist;
-	char			*command, *cause;
+	char			*command;
+	struct cmd_parse_result	*pr;
 
 	command = cmd_template_replace(template, name, 1);
 	if (command == NULL || *command == '\0') {
@@ -961,17 +1069,22 @@ mode_tree_run_command(struct client *c, struct cmd_find_state *fs,
 		return;
 	}
 
-	cmdlist = cmd_string_parse(command, NULL, 0, &cause);
-	if (cmdlist == NULL) {
-		if (cause != NULL && c != NULL) {
-			*cause = toupper((u_char)*cause);
-			status_message_set(c, "%s", cause);
+	pr = cmd_parse_from_string(command, NULL);
+	switch (pr->status) {
+	case CMD_PARSE_EMPTY:
+		break;
+	case CMD_PARSE_ERROR:
+		if (c != NULL) {
+			*pr->error = toupper((u_char)*pr->error);
+			status_message_set(c, "%s", pr->error);
 		}
-		free(cause);
-	} else {
-		new_item = cmdq_get_command(cmdlist, fs, NULL, 0);
+		free(pr->error);
+		break;
+	case CMD_PARSE_SUCCESS:
+		new_item = cmdq_get_command(pr->cmdlist, fs, NULL, 0);
 		cmdq_append(c, new_item);
-		cmd_list_free(cmdlist);
+		cmd_list_free(pr->cmdlist);
+		break;
 	}
 
 	free(command);

notify.c

@@ -35,13 +35,34 @@ struct notify_entry {
 };
 
 static void
-notify_hook1(struct cmdq_item *item, struct notify_entry *ne)
+notify_hook_formats(struct cmdq_item *item, struct session *s, struct window *w,
+    int pane)
 {
-	struct cmd_find_state	 fs;
-	struct hook		*hook;
-	struct cmdq_item	*new_item;
-	struct session		*s = ne->session;
-	struct window		*w = ne->window;
+	if (s != NULL) {
+		cmdq_format(item, "hook_session", "$%u", s->id);
+		cmdq_format(item, "hook_session_name", "%s", s->name);
+	}
+	if (w != NULL) {
+		cmdq_format(item, "hook_window", "@%u", w->id);
+		cmdq_format(item, "hook_window_name", "%s", w->name);
+	}
+	if (pane != -1)
+		cmdq_format(item, "hook_pane", "%%%d", pane);
+}
+
+static void
+notify_insert_hook(struct cmdq_item *item, struct notify_entry *ne)
+{
+	struct cmd_find_state		 fs;
+	struct options			*oo;
+	struct cmdq_item		*new_item;
+	struct session			*s = ne->session;
+	struct window			*w = ne->window;
+	struct options_entry		*o;
+	struct options_array_item	*a;
+	struct cmd_list			*cmdlist;
+
+	log_debug("%s: %s", __func__, ne->name);
 
 	cmd_find_clear_state(&fs, 0);
 	if (cmd_find_empty_state(&ne->fs) || !cmd_find_valid_state(&ne->fs))
@@ -49,26 +70,29 @@ notify_hook1(struct cmdq_item *item, struct notify_entry *ne)
 	else
 		cmd_find_copy_state(&fs, &ne->fs);
 
-	hook = hooks_find(hooks_get(fs.s), ne->name);
-	if (hook == NULL)
+	if (fs.s == NULL)
+		oo = global_s_options;
+	else
+		oo = fs.s->options;
+	o = options_get(oo, ne->name);
+	if (o == NULL)
 		return;
-	log_debug("notify hook %s", ne->name);
 
-	new_item = cmdq_get_command(hook->cmdlist, &fs, NULL, CMDQ_NOHOOKS);
-	cmdq_format(new_item, "hook", "%s", ne->name);
+	a = options_array_first(o);
+	while (a != NULL) {
+		cmdlist = options_array_item_value(a)->cmdlist;
+		if (cmdlist == NULL) {
+			a = options_array_next(a);
+			continue;
+		}
 
-	if (s != NULL) {
-		cmdq_format(new_item, "hook_session", "$%u", s->id);
-		cmdq_format(new_item, "hook_session_name", "%s", s->name);
+		new_item = cmdq_get_command(cmdlist, &fs, NULL, CMDQ_NOHOOKS);
+		cmdq_format(new_item, "hook", "%s", ne->name);
+		notify_hook_formats(new_item, s, w, ne->pane);
+		item = cmdq_insert_after(item, new_item);
+
+		a = options_array_next(a);
 	}
-	if (w != NULL) {
-		cmdq_format(new_item, "hook_window", "@%u", w->id);
-		cmdq_format(new_item, "hook_window_name", "%s", w->name);
-	}
-	if (ne->pane != -1)
-		cmdq_format(new_item, "hook_pane", "%%%d", ne->pane);
-
-	cmdq_insert_after(item, new_item);
 }
 
 static enum cmd_retval
@@ -101,7 +125,7 @@ notify_callback(struct cmdq_item *item, void *data)
 	if (strcmp(ne->name, "session-window-changed") == 0)
 		control_notify_session_window_changed(ne->session);
 
-	notify_hook1(item, ne);
+	notify_insert_hook(item, ne);
 
 	if (ne->client != NULL)
 		server_client_unref(ne->client);
@@ -168,17 +192,17 @@ notify_hook(struct cmdq_item *item, const char *name)
 	ne.window = item->target.w;
 	ne.pane = item->target.wp->id;
 
-	notify_hook1(item, &ne);
+	notify_insert_hook(item, &ne);
 }
 
 void
-notify_input(struct window_pane *wp, struct evbuffer *input)
+notify_input(struct window_pane *wp, const u_char *buf, size_t len)
 {
 	struct client	*c;
 
 	TAILQ_FOREACH(c, &clients, entry) {
 		if (c->flags & CLIENT_CONTROL)
-			control_notify_input(c, wp, input);
+			control_notify_input(c, wp, buf, len);
 	}
 }
 

options-table.c

@@ -63,13 +63,16 @@ static const char *options_table_set_clipboard_list[] = {
 	"off", "external", "on", NULL
 };
 static const char *options_table_window_size_list[] = {
-	"largest", "smallest", "manual", NULL
+	"largest", "smallest", "manual", "latest", NULL
 };
 
 /* Status line format. */
 #define OPTIONS_TABLE_STATUS_FORMAT1 \
 	"#[align=left range=left #{status-left-style}]" \
-	"#{T;=/#{status-left-length}:status-left}#[norange default]" \
+	"#[push-default]" \
+	"#{T;=/#{status-left-length}:status-left}" \
+	"#[pop-default]" \
+	"#[norange default]" \
 	"#[list=on align=#{status-justify}]" \
 	"#[list=left-marker]<#[list=right-marker]>#[list=on]" \
 	"#{W:" \
@@ -91,7 +94,9 @@ static const char *options_table_window_size_list[] = {
 				"}" \
 			"}" \
 		"]" \
+		"#[push-default]" \
 		"#{T:window-status-format}" \
+		"#[pop-default]" \
 		"#[norange default]" \
 		"#{?window_end_flag,,#{window-status-separator}}" \
 	"," \
@@ -116,12 +121,17 @@ static const char *options_table_window_size_list[] = {
 				"}" \
 			"}" \
 		"]" \
+		"#[push-default]" \
 		"#{T:window-status-current-format}" \
+		"#[pop-default]" \
 		"#[norange list=on default]" \
 		"#{?window_end_flag,,#{window-status-separator}}" \
 	"}" \
 	"#[nolist align=right range=right #{status-right-style}]" \
-	"#{T;=/#{status-right-length}:status-right}#[norange default]"
+	"#[push-default]" \
+	"#{T;=/#{status-right-length}:status-right}" \
+	"#[pop-default]" \
+	"#[norange default]"
 #define OPTIONS_TABLE_STATUS_FORMAT2 \
 	"#[align=centre]#{P:#{?pane_active,#[reverse],}" \
 	"#{pane_index}[#{pane_width}x#{pane_height}]#[default] }"
@@ -129,8 +139,25 @@ static const char *options_table_status_format_default[] = {
 	OPTIONS_TABLE_STATUS_FORMAT1, OPTIONS_TABLE_STATUS_FORMAT2, NULL
 };
 
+/* Helper for hook options. */
+#define OPTIONS_TABLE_HOOK(hook_name, default_value) \
+	{ .name = hook_name, \
+	  .type = OPTIONS_TABLE_COMMAND, \
+	  .scope = OPTIONS_TABLE_SESSION, \
+	  .flags = OPTIONS_TABLE_IS_ARRAY|OPTIONS_TABLE_IS_HOOK, \
+	  .default_str = default_value,	\
+	  .separator = "" \
+	}
+
 /* Top-level options. */
 const struct options_table_entry options_table[] = {
+	/* Server options. */
+	{ .name = "backspace",
+	  .type = OPTIONS_TABLE_KEY,
+	  .scope = OPTIONS_TABLE_SERVER,
+	  .default_num = '\177',
+	},
+
 	{ .name = "buffer-limit",
 	  .type = OPTIONS_TABLE_NUMBER,
 	  .scope = OPTIONS_TABLE_SERVER,
@@ -140,8 +167,9 @@ const struct options_table_entry options_table[] = {
 	},
 
 	{ .name = "command-alias",
-	  .type = OPTIONS_TABLE_ARRAY,
+	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_SERVER,
+	  .flags = OPTIONS_TABLE_IS_ARRAY,
 	  .default_str = "split-pane=split-window,"
 			 "splitp=split-window,"
 			 "server-info=show-messages -JT,"
@@ -205,8 +233,9 @@ const struct options_table_entry options_table[] = {
 	},
 
 	{ .name = "terminal-overrides",
-	  .type = OPTIONS_TABLE_ARRAY,
+	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_SERVER,
+	  .flags = OPTIONS_TABLE_IS_ARRAY,
 	  .default_str = "xterm*:XT:Ms=\\E]52;%p1%s;%p2%s\\007"
 			 ":Cs=\\E]12;%p1%s\\007:Cr=\\E]112\\007"
 			 ":Ss=\\E[%p1%d q:Se=\\E[2 q,screen*:XT",
@@ -214,12 +243,14 @@ const struct options_table_entry options_table[] = {
 	},
 
 	{ .name = "user-keys",
-	  .type = OPTIONS_TABLE_ARRAY,
+	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_SERVER,
+	  .flags = OPTIONS_TABLE_IS_ARRAY,
 	  .default_str = "",
 	  .separator = ","
 	},
 
+	/* Session options. */
 	{ .name = "activity-action",
 	  .type = OPTIONS_TABLE_CHOICE,
 	  .scope = OPTIONS_TABLE_SESSION,
@@ -420,8 +451,9 @@ const struct options_table_entry options_table[] = {
 	},
 
 	{ .name = "status-format",
-	  .type = OPTIONS_TABLE_ARRAY,
+	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_SESSION,
+	  .flags = OPTIONS_TABLE_IS_ARRAY,
 	  .default_arr = options_table_status_format_default,
 	},
 
@@ -503,8 +535,9 @@ const struct options_table_entry options_table[] = {
 	},
 
 	{ .name = "update-environment",
-	  .type = OPTIONS_TABLE_ARRAY,
+	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_SESSION,
+	  .flags = OPTIONS_TABLE_IS_ARRAY,
 	  .default_str = "DISPLAY KRB5CCNAME SSH_ASKPASS SSH_AUTH_SOCK "
 	  		 "SSH_AGENT_PID SSH_CONNECTION WINDOWID XAUTHORITY"
 	},
@@ -533,9 +566,10 @@ const struct options_table_entry options_table[] = {
 	{ .name = "word-separators",
 	  .type = OPTIONS_TABLE_STRING,
 	  .scope = OPTIONS_TABLE_SESSION,
-	  .default_str = " -_@"
+	  .default_str = " "
 	},
 
+	/* Window options. */
 	{ .name = "aggressive-resize",
 	  .type = OPTIONS_TABLE_FLAG,
 	  .scope = OPTIONS_TABLE_WINDOW,
@@ -544,13 +578,13 @@ const struct options_table_entry options_table[] = {
 
 	{ .name = "allow-rename",
 	  .type = OPTIONS_TABLE_FLAG,
-	  .scope = OPTIONS_TABLE_WINDOW,
+	  .scope = OPTIONS_TABLE_WINDOW|OPTIONS_TABLE_PANE,
 	  .default_num = 0
 	},
 
 	{ .name = "alternate-screen",
 	  .type = OPTIONS_TABLE_FLAG,
-	  .scope = OPTIONS_TABLE_WINDOW,
+	  .scope = OPTIONS_TABLE_WINDOW|OPTIONS_TABLE_PANE,
 	  .default_num = 1
 	},
 
@@ -670,7 +704,7 @@ const struct options_table_entry options_table[] = {
 	  .type = OPTIONS_TABLE_CHOICE,
 	  .scope = OPTIONS_TABLE_WINDOW,
 	  .choices = options_table_pane_status_list,
-	  .default_num = 0
+	  .default_num = PANE_STATUS_OFF
 	},
 
 	{ .name = "pane-border-style",
@@ -681,7 +715,7 @@ const struct options_table_entry options_table[] = {
 
 	{ .name = "remain-on-exit",
 	  .type = OPTIONS_TABLE_FLAG,
-	  .scope = OPTIONS_TABLE_WINDOW,
+	  .scope = OPTIONS_TABLE_WINDOW|OPTIONS_TABLE_PANE,
 	  .default_num = 0
 	},
 
@@ -693,7 +727,7 @@ const struct options_table_entry options_table[] = {
 
 	{ .name = "window-active-style",
 	  .type = OPTIONS_TABLE_STYLE,
-	  .scope = OPTIONS_TABLE_WINDOW,
+	  .scope = OPTIONS_TABLE_WINDOW|OPTIONS_TABLE_PANE,
 	  .default_str = "default"
 	},
 
@@ -701,12 +735,12 @@ const struct options_table_entry options_table[] = {
 	  .type = OPTIONS_TABLE_CHOICE,
 	  .scope = OPTIONS_TABLE_WINDOW,
 	  .choices = options_table_window_size_list,
-	  .default_num = WINDOW_SIZE_SMALLEST
+	  .default_num = WINDOW_SIZE_LATEST
 	},
 
 	{ .name = "window-style",
 	  .type = OPTIONS_TABLE_STYLE,
-	  .scope = OPTIONS_TABLE_WINDOW,
+	  .scope = OPTIONS_TABLE_WINDOW|OPTIONS_TABLE_PANE,
 	  .default_str = "default"
 	},
 
@@ -770,5 +804,67 @@ const struct options_table_entry options_table[] = {
 	  .default_num = 1
 	},
 
+	/* Hook options. */
+	OPTIONS_TABLE_HOOK("after-bind-key", ""),
+	OPTIONS_TABLE_HOOK("after-capture-pane", ""),
+	OPTIONS_TABLE_HOOK("after-copy-mode", ""),
+	OPTIONS_TABLE_HOOK("after-display-message", ""),
+	OPTIONS_TABLE_HOOK("after-display-panes", ""),
+	OPTIONS_TABLE_HOOK("after-kill-pane", ""),
+	OPTIONS_TABLE_HOOK("after-list-buffers", ""),
+	OPTIONS_TABLE_HOOK("after-list-clients", ""),
+	OPTIONS_TABLE_HOOK("after-list-keys", ""),
+	OPTIONS_TABLE_HOOK("after-list-panes", ""),
+	OPTIONS_TABLE_HOOK("after-list-sessions", ""),
+	OPTIONS_TABLE_HOOK("after-list-windows", ""),
+	OPTIONS_TABLE_HOOK("after-load-buffer", ""),
+	OPTIONS_TABLE_HOOK("after-lock-server", ""),
+	OPTIONS_TABLE_HOOK("after-new-session", ""),
+	OPTIONS_TABLE_HOOK("after-new-window", ""),
+	OPTIONS_TABLE_HOOK("after-paste-buffer", ""),
+	OPTIONS_TABLE_HOOK("after-pipe-pane", ""),
+	OPTIONS_TABLE_HOOK("after-queue", ""),
+	OPTIONS_TABLE_HOOK("after-refresh-client", ""),
+	OPTIONS_TABLE_HOOK("after-rename-session", ""),
+	OPTIONS_TABLE_HOOK("after-rename-window", ""),
+	OPTIONS_TABLE_HOOK("after-resize-pane", ""),
+	OPTIONS_TABLE_HOOK("after-resize-window", ""),
+	OPTIONS_TABLE_HOOK("after-save-buffer", ""),
+	OPTIONS_TABLE_HOOK("after-select-layout", ""),
+	OPTIONS_TABLE_HOOK("after-select-pane", ""),
+	OPTIONS_TABLE_HOOK("after-select-window", ""),
+	OPTIONS_TABLE_HOOK("after-send-keys", ""),
+	OPTIONS_TABLE_HOOK("after-set-buffer", ""),
+	OPTIONS_TABLE_HOOK("after-set-environment", ""),
+	OPTIONS_TABLE_HOOK("after-set-hook", ""),
+	OPTIONS_TABLE_HOOK("after-set-option", ""),
+	OPTIONS_TABLE_HOOK("after-show-environment", ""),
+	OPTIONS_TABLE_HOOK("after-show-messages", ""),
+	OPTIONS_TABLE_HOOK("after-show-options", ""),
+	OPTIONS_TABLE_HOOK("after-split-window", ""),
+	OPTIONS_TABLE_HOOK("after-unbind-key", ""),
+	OPTIONS_TABLE_HOOK("alert-activity", ""),
+	OPTIONS_TABLE_HOOK("alert-bell", ""),
+	OPTIONS_TABLE_HOOK("alert-silence", ""),
+	OPTIONS_TABLE_HOOK("client-attached", ""),
+	OPTIONS_TABLE_HOOK("client-detached", ""),
+	OPTIONS_TABLE_HOOK("client-resized", ""),
+	OPTIONS_TABLE_HOOK("client-session-changed", ""),
+	OPTIONS_TABLE_HOOK("pane-died", ""),
+	OPTIONS_TABLE_HOOK("pane-exited", ""),
+	OPTIONS_TABLE_HOOK("pane-focus-in", ""),
+	OPTIONS_TABLE_HOOK("pane-focus-out", ""),
+	OPTIONS_TABLE_HOOK("pane-mode-changed", ""),
+	OPTIONS_TABLE_HOOK("pane-set-clipboard", ""),
+	OPTIONS_TABLE_HOOK("session-closed", ""),
+	OPTIONS_TABLE_HOOK("session-created", ""),
+	OPTIONS_TABLE_HOOK("session-renamed", ""),
+	OPTIONS_TABLE_HOOK("session-window-changed", ""),
+	OPTIONS_TABLE_HOOK("window-layout-changed", ""),
+	OPTIONS_TABLE_HOOK("window-linked", ""),
+	OPTIONS_TABLE_HOOK("window-pane-changed", ""),
+	OPTIONS_TABLE_HOOK("window-renamed", ""),
+	OPTIONS_TABLE_HOOK("window-unlinked", ""),
+
 	{ .name = NULL }
 };

options.c

@@ -32,10 +32,9 @@
 
 struct options_array_item {
 	u_int				 index;
-	char				*value;
+	union options_value		 value;
 	RB_ENTRY(options_array_item)	 entry;
 };
-RB_HEAD(options_array, options_array_item);
 static int
 options_array_cmp(struct options_array_item *a1, struct options_array_item *a2)
 {
@@ -48,19 +47,13 @@ options_array_cmp(struct options_array_item *a1, struct options_array_item *a2)
 RB_GENERATE_STATIC(options_array, options_array_item, entry, options_array_cmp);
 
 struct options_entry {
-	struct options				 *owner;
+	struct options				*owner;
 
-	const char				 *name;
-	const struct options_table_entry	 *tableentry;
+	const char				*name;
+	const struct options_table_entry	*tableentry;
+	union options_value			 value;
 
-	union {
-		char				 *string;
-		long long			  number;
-		struct style			  style;
-		struct options_array		  array;
-	};
-
-	RB_ENTRY(options_entry)			  entry;
+	RB_ENTRY(options_entry)			 entry;
 };
 
 struct options {
@@ -83,9 +76,13 @@ static struct options_entry	*options_add(struct options *, const char *);
 #define OPTIONS_IS_STYLE(o) \
 	((o)->tableentry != NULL &&					\
 	    (o)->tableentry->type == OPTIONS_TABLE_STYLE)
-#define OPTIONS_IS_ARRAY(o) \
+#define OPTIONS_IS_COMMAND(o) \
 	((o)->tableentry != NULL &&					\
-	    (o)->tableentry->type == OPTIONS_TABLE_ARRAY)
+	    (o)->tableentry->type == OPTIONS_TABLE_COMMAND)
+
+#define OPTIONS_IS_ARRAY(o)						\
+	((o)->tableentry != NULL &&					\
+	    ((o)->tableentry->flags & OPTIONS_TABLE_IS_ARRAY))
 
 static int	options_cmp(struct options_entry *, struct options_entry *);
 RB_GENERATE_STATIC(options_tree, options_entry, entry, options_cmp);
@@ -103,12 +100,63 @@ options_parent_table_entry(struct options *oo, const char *s)
 
 	if (oo->parent == NULL)
 		fatalx("no parent options for %s", s);
-	o = options_get_only(oo->parent, s);
+	o = options_get(oo->parent, s);
 	if (o == NULL)
 		fatalx("%s not in parent options", s);
 	return (o->tableentry);
 }
 
+static void
+options_value_free(struct options_entry *o, union options_value *ov)
+{
+	if (OPTIONS_IS_STRING(o))
+		free(ov->string);
+	if (OPTIONS_IS_COMMAND(o) && ov->cmdlist != NULL)
+		cmd_list_free(ov->cmdlist);
+}
+
+static char *
+options_value_tostring(struct options_entry *o, union options_value *ov,
+    int numeric)
+{
+	char	*s;
+
+	if (OPTIONS_IS_COMMAND(o))
+		return (cmd_list_print(ov->cmdlist, 0));
+	if (OPTIONS_IS_STYLE(o))
+		return (xstrdup(style_tostring(&ov->style)));
+	if (OPTIONS_IS_NUMBER(o)) {
+		switch (o->tableentry->type) {
+		case OPTIONS_TABLE_NUMBER:
+			xasprintf(&s, "%lld", ov->number);
+			break;
+		case OPTIONS_TABLE_KEY:
+			s = xstrdup(key_string_lookup_key(ov->number));
+			break;
+		case OPTIONS_TABLE_COLOUR:
+			s = xstrdup(colour_tostring(ov->number));
+			break;
+		case OPTIONS_TABLE_FLAG:
+			if (numeric)
+				xasprintf(&s, "%lld", ov->number);
+			else
+				s = xstrdup(ov->number ? "on" : "off");
+			break;
+		case OPTIONS_TABLE_CHOICE:
+			s = xstrdup(o->tableentry->choices[ov->number]);
+			break;
+		case OPTIONS_TABLE_STRING:
+		case OPTIONS_TABLE_STYLE:
+		case OPTIONS_TABLE_COMMAND:
+			fatalx("not a number option type");
+		}
+		return (s);
+	}
+	if (OPTIONS_IS_STRING(o))
+		return (xstrdup(ov->string));
+	return (xstrdup(""));
+}
+
 struct options *
 options_create(struct options *parent)
 {
@@ -130,6 +178,12 @@ options_free(struct options *oo)
 	free(oo);
 }
 
+void
+options_set_parent(struct options *oo, struct options *parent)
+{
+	oo->parent = parent;
+}
+
 struct options_entry *
 options_first(struct options *oo)
 {
@@ -174,8 +228,8 @@ options_empty(struct options *oo, const struct options_table_entry *oe)
 	o = options_add(oo, oe->name);
 	o->tableentry = oe;
 
-	if (oe->type == OPTIONS_TABLE_ARRAY)
-		RB_INIT(&o->array);
+	if (oe->flags & OPTIONS_TABLE_IS_ARRAY)
+		RB_INIT(&o->value.array);
 
 	return (o);
 }
@@ -183,23 +237,35 @@ options_empty(struct options *oo, const struct options_table_entry *oe)
 struct options_entry *
 options_default(struct options *oo, const struct options_table_entry *oe)
 {
-	struct options_entry	 *o;
-	u_int			  i;
+	struct options_entry	*o;
+	union options_value	*ov;
+	u_int			 i;
 
 	o = options_empty(oo, oe);
-	if (oe->type == OPTIONS_TABLE_ARRAY) {
-		if (oe->default_arr != NULL) {
-			for (i = 0; oe->default_arr[i] != NULL; i++)
-				options_array_set(o, i, oe->default_arr[i], 0);
-		} else
-			options_array_assign(o, oe->default_str);
-	} else if (oe->type == OPTIONS_TABLE_STRING)
-		o->string = xstrdup(oe->default_str);
-	else if (oe->type == OPTIONS_TABLE_STYLE) {
-		style_set(&o->style, &grid_default_cell);
-		style_parse(&o->style, &grid_default_cell, oe->default_str);
-	} else
-		o->number = oe->default_num;
+	ov = &o->value;
+
+	if (oe->flags & OPTIONS_TABLE_IS_ARRAY) {
+		if (oe->default_arr == NULL) {
+			options_array_assign(o, oe->default_str, NULL);
+			return (o);
+		}
+		for (i = 0; oe->default_arr[i] != NULL; i++)
+			options_array_set(o, i, oe->default_arr[i], 0, NULL);
+		return (o);
+	}
+
+	switch (oe->type) {
+	case OPTIONS_TABLE_STRING:
+		ov->string = xstrdup(oe->default_str);
+		break;
+	case OPTIONS_TABLE_STYLE:
+		style_set(&ov->style, &grid_default_cell);
+		style_parse(&ov->style, &grid_default_cell, oe->default_str);
+		break;
+	default:
+		ov->number = oe->default_num;
+		break;
+	}
 	return (o);
 }
 
@@ -225,12 +291,12 @@ options_remove(struct options_entry *o)
 {
 	struct options	*oo = o->owner;
 
-	if (OPTIONS_IS_STRING(o))
-		free(o->string);
-	else if (OPTIONS_IS_ARRAY(o))
+	if (OPTIONS_IS_ARRAY(o))
 		options_array_clear(o);
-
+	else
+		options_value_free(o, &o->value);
 	RB_REMOVE(options_tree, &oo->tree, o);
+	free((void *)o->name);
 	free(o);
 }
 
@@ -252,14 +318,25 @@ options_array_item(struct options_entry *o, u_int idx)
 	struct options_array_item	a;
 
 	a.index = idx;
-	return (RB_FIND(options_array, &o->array, &a));
+	return (RB_FIND(options_array, &o->value.array, &a));
+}
+
+static struct options_array_item *
+options_array_new(struct options_entry *o, u_int idx)
+{
+	struct options_array_item	*a;
+
+	a = xcalloc(1, sizeof *a);
+	a->index = idx;
+	RB_INSERT(options_array, &o->value.array, a);
+	return (a);
 }
 
 static void
 options_array_free(struct options_entry *o, struct options_array_item *a)
 {
-	free(a->value);
-	RB_REMOVE(options_array, &o->array, a);
+	options_value_free(o, &a->value);
+	RB_REMOVE(options_array, &o->value.array, a);
 	free(a);
 }
 
@@ -271,11 +348,11 @@ options_array_clear(struct options_entry *o)
 	if (!OPTIONS_IS_ARRAY(o))
 		return;
 
-	RB_FOREACH_SAFE(a, options_array, &o->array, a1)
+	RB_FOREACH_SAFE(a, options_array, &o->value.array, a1)
 	    options_array_free(o, a);
 }
 
-const char *
+union options_value *
 options_array_get(struct options_entry *o, u_int idx)
 {
 	struct options_array_item	*a;
@@ -285,45 +362,77 @@ options_array_get(struct options_entry *o, u_int idx)
 	a = options_array_item(o, idx);
 	if (a == NULL)
 		return (NULL);
-	return (a->value);
+	return (&a->value);
 }
 
 int
 options_array_set(struct options_entry *o, u_int idx, const char *value,
-    int append)
+    int append, char **cause)
 {
 	struct options_array_item	*a;
 	char				*new;
+	struct cmd_parse_result		*pr;
 
-	if (!OPTIONS_IS_ARRAY(o))
+	if (!OPTIONS_IS_ARRAY(o)) {
+		if (cause != NULL)
+			*cause = xstrdup("not an array");
 		return (-1);
+	}
 
-	a = options_array_item(o, idx);
 	if (value == NULL) {
+		a = options_array_item(o, idx);
 		if (a != NULL)
 			options_array_free(o, a);
 		return (0);
 	}
 
-	if (a == NULL) {
-		a = xcalloc(1, sizeof *a);
-		a->index = idx;
-		a->value = xstrdup(value);
-		RB_INSERT(options_array, &o->array, a);
-	} else {
-		free(a->value);
-		if (a != NULL && append)
-			xasprintf(&new, "%s%s", a->value, value);
+	if (OPTIONS_IS_COMMAND(o)) {
+		pr = cmd_parse_from_string(value, NULL);
+		switch (pr->status) {
+		case CMD_PARSE_EMPTY:
+			if (cause != NULL)
+				*cause = xstrdup("empty command");
+			return (-1);
+		case CMD_PARSE_ERROR:
+			if (cause != NULL)
+				*cause = pr->error;
+			else
+				free(pr->error);
+			return (-1);
+		case CMD_PARSE_SUCCESS:
+			break;
+		}
+
+		a = options_array_item(o, idx);
+		if (a == NULL)
+			a = options_array_new(o, idx);
 		else
-			new = xstrdup(value);
-		a->value = new;
+			options_value_free(o, &a->value);
+		a->value.cmdlist = pr->cmdlist;
+		return (0);
 	}
 
-	return (0);
+	if (OPTIONS_IS_STRING(o)) {
+		a = options_array_item(o, idx);
+		if (a != NULL && append)
+			xasprintf(&new, "%s%s", a->value.string, value);
+		else
+			new = xstrdup(value);
+		if (a == NULL)
+			a = options_array_new(o, idx);
+		else
+			options_value_free(o, &a->value);
+		a->value.string = new;
+		return (0);
+	}
+
+	if (cause != NULL)
+		*cause = xstrdup("wrong array type");
+	return (-1);
 }
 
-void
-options_array_assign(struct options_entry *o, const char *s)
+int
+options_array_assign(struct options_entry *o, const char *s, char **cause)
 {
 	const char	*separator;
 	char		*copy, *next, *string;
@@ -332,7 +441,18 @@ options_array_assign(struct options_entry *o, const char *s)
 	separator = o->tableentry->separator;
 	if (separator == NULL)
 		separator = " ,";
+	if (*separator == '\0') {
+		if (*s == '\0')
+			return (0);
+		for (i = 0; i < UINT_MAX; i++) {
+			if (options_array_item(o, i) == NULL)
+				break;
+		}
+		return (options_array_set(o, i, s, 0, cause));
+	}
 
+	if (*s == '\0')
+		return (0);
 	copy = string = xstrdup(s);
 	while ((next = strsep(&string, separator)) != NULL) {
 		if (*next == '\0')
@@ -343,9 +463,13 @@ options_array_assign(struct options_entry *o, const char *s)
 		}
 		if (i == UINT_MAX)
 			break;
-		options_array_set(o, i, next, 0);
+		if (options_array_set(o, i, next, 0, cause) != 0) {
+			free(copy);
+			return (-1);
+		}
 	}
 	free(copy);
+	return (0);
 }
 
 struct options_array_item *
@@ -353,13 +477,13 @@ options_array_first(struct options_entry *o)
 {
 	if (!OPTIONS_IS_ARRAY(o))
 		return (NULL);
-	return (RB_MIN(options_array, &o->array));
+	return (RB_MIN(options_array, &o->value.array));
 }
 
 struct options_array_item *
 options_array_next(struct options_array_item *a)
 {
-	return (RB_NEXT(options_array, &o->array, a));
+	return (RB_NEXT(options_array, &o->value.array, a));
 }
 
 u_int
@@ -368,10 +492,10 @@ options_array_item_index(struct options_array_item *a)
 	return (a->index);
 }
 
-const char *
+union options_value *
 options_array_item_value(struct options_array_item *a)
 {
-	return (a->value);
+	return (&a->value);
 }
 
 int
@@ -383,59 +507,23 @@ options_isarray(struct options_entry *o)
 int
 options_isstring(struct options_entry *o)
 {
-	return (OPTIONS_IS_STRING(o) || OPTIONS_IS_ARRAY(o));
+	return (OPTIONS_IS_STRING(o));
 }
 
-const char *
+char *
 options_tostring(struct options_entry *o, int idx, int numeric)
 {
-	static char			 s[1024];
-	const char			*tmp;
 	struct options_array_item	*a;
 
 	if (OPTIONS_IS_ARRAY(o)) {
 		if (idx == -1)
-			return (NULL);
+			return (xstrdup(""));
 		a = options_array_item(o, idx);
 		if (a == NULL)
-			return ("");
-		return (a->value);
+			return (xstrdup(""));
+		return (options_value_tostring(o, &a->value, numeric));
 	}
-	if (OPTIONS_IS_STYLE(o))
-		return (style_tostring(&o->style));
-	if (OPTIONS_IS_NUMBER(o)) {
-		tmp = NULL;
-		switch (o->tableentry->type) {
-		case OPTIONS_TABLE_NUMBER:
-			xsnprintf(s, sizeof s, "%lld", o->number);
-			break;
-		case OPTIONS_TABLE_KEY:
-			tmp = key_string_lookup_key(o->number);
-			break;
-		case OPTIONS_TABLE_COLOUR:
-			tmp = colour_tostring(o->number);
-			break;
-		case OPTIONS_TABLE_FLAG:
-			if (numeric)
-				xsnprintf(s, sizeof s, "%lld", o->number);
-			else
-				tmp = (o->number ? "on" : "off");
-			break;
-		case OPTIONS_TABLE_CHOICE:
-			tmp = o->tableentry->choices[o->number];
-			break;
-		case OPTIONS_TABLE_STRING:
-		case OPTIONS_TABLE_STYLE:
-		case OPTIONS_TABLE_ARRAY:
-			break;
-		}
-		if (tmp != NULL)
-			xsnprintf(s, sizeof s, "%s", tmp);
-		return (s);
-	}
-	if (OPTIONS_IS_STRING(o))
-		return (o->string);
-	return (NULL);
+	return (options_value_tostring(o, &o->value, numeric));
 }
 
 char *
@@ -481,7 +569,7 @@ options_parse_get(struct options *oo, const char *s, int *idx, int only)
 }
 
 char *
-options_match(const char *s, int *idx, int* ambiguous)
+options_match(const char *s, int *idx, int *ambiguous)
 {
 	const struct options_table_entry	*oe, *found;
 	char					*name;
@@ -522,7 +610,7 @@ options_match(const char *s, int *idx, int* ambiguous)
 
 struct options_entry *
 options_match_get(struct options *oo, const char *s, int *idx, int only,
-    int* ambiguous)
+    int *ambiguous)
 {
 	char			*name;
 	struct options_entry	*o;
@@ -549,7 +637,7 @@ options_get_string(struct options *oo, const char *name)
 		fatalx("missing option %s", name);
 	if (!OPTIONS_IS_STRING(o))
 		fatalx("option %s is not a string", name);
-	return (o->string);
+	return (o->value.string);
 }
 
 long long
@@ -562,7 +650,7 @@ options_get_number(struct options *oo, const char *name)
 		fatalx("missing option %s", name);
 	if (!OPTIONS_IS_NUMBER(o))
 	    fatalx("option %s is not a number", name);
-	return (o->number);
+	return (o->value.number);
 }
 
 struct style *
@@ -575,7 +663,7 @@ options_get_style(struct options *oo, const char *name)
 		fatalx("missing option %s", name);
 	if (!OPTIONS_IS_STYLE(o))
 		fatalx("option %s is not a style", name);
-	return (&o->style);
+	return (&o->value.style);
 }
 
 struct options_entry *
@@ -592,7 +680,7 @@ options_set_string(struct options *oo, const char *name, int append,
 
 	o = options_get_only(oo, name);
 	if (o != NULL && append && OPTIONS_IS_STRING(o)) {
-		xasprintf(&value, "%s%s", o->string, s);
+		xasprintf(&value, "%s%s", o->value.string, s);
 		free(s);
 	} else
 		value = s;
@@ -606,8 +694,8 @@ options_set_string(struct options *oo, const char *name, int append,
 
 	if (!OPTIONS_IS_STRING(o))
 		fatalx("option %s is not a string", name);
-	free(o->string);
-	o->string = value;
+	free(o->value.string);
+	o->value.string = value;
 	return (o);
 }
 
@@ -628,7 +716,7 @@ options_set_number(struct options *oo, const char *name, long long value)
 
 	if (!OPTIONS_IS_NUMBER(o))
 		fatalx("option %s is not a number", name);
-	o->number = value;
+	o->value.number = value;
 	return (o);
 }
 
@@ -644,7 +732,7 @@ options_set_style(struct options *oo, const char *name, int append,
 
 	o = options_get_only(oo, name);
 	if (o != NULL && append && OPTIONS_IS_STYLE(o))
-		style_copy(&sy, &o->style);
+		style_copy(&sy, &o->value.style);
 	else
 		style_set(&sy, &grid_default_cell);
 	if (style_parse(&sy, &grid_default_cell, value) == -1)
@@ -657,24 +745,106 @@ options_set_style(struct options *oo, const char *name, int append,
 
 	if (!OPTIONS_IS_STYLE(o))
 		fatalx("option %s is not a style", name);
-	style_copy(&o->style, &sy);
+	style_copy(&o->value.style, &sy);
 	return (o);
 }
 
-enum options_table_scope
+int
+options_scope_from_name(struct args *args, int window,
+    const char *name, struct cmd_find_state *fs, struct options **oo,
+    char **cause)
+{
+	struct session				*s = fs->s;
+	struct winlink				*wl = fs->wl;
+	struct window_pane			*wp = fs->wp;
+	const char				*target = args_get(args, 't');
+	const struct options_table_entry	*oe;
+	int					 scope = OPTIONS_TABLE_NONE;
+
+	if (*name == '@')
+		return (options_scope_from_flags(args, window, fs, oo, cause));
+
+	for (oe = options_table; oe->name != NULL; oe++) {
+		if (strcmp(oe->name, name) == 0)
+			break;
+	}
+	if (oe->name == NULL) {
+		xasprintf(cause, "unknown option: %s", name);
+		return (OPTIONS_TABLE_NONE);
+	}
+	switch (oe->scope) {
+	case OPTIONS_TABLE_SERVER:
+		*oo = global_options;
+		scope = OPTIONS_TABLE_SERVER;
+		break;
+	case OPTIONS_TABLE_SESSION:
+		if (args_has(args, 'g')) {
+			*oo = global_s_options;
+			scope = OPTIONS_TABLE_SESSION;
+		} else if (s == NULL && target != NULL)
+			xasprintf(cause, "no such session: %s", target);
+		else if (s == NULL)
+			xasprintf(cause, "no current session");
+		else {
+			*oo = s->options;
+			scope = OPTIONS_TABLE_SESSION;
+		}
+		break;
+	case OPTIONS_TABLE_WINDOW|OPTIONS_TABLE_PANE:
+		if (args_has(args, 'p')) {
+			if (wp == NULL && target != NULL)
+				xasprintf(cause, "no such pane: %s", target);
+			else if (wp == NULL)
+				xasprintf(cause, "no current pane");
+			else {
+				*oo = wp->options;
+				scope = OPTIONS_TABLE_PANE;
+			}
+			break;
+		}
+		/* FALLTHROUGH */
+	case OPTIONS_TABLE_WINDOW:
+		if (args_has(args, 'g')) {
+			*oo = global_w_options;
+			scope = OPTIONS_TABLE_WINDOW;
+		} else if (wl == NULL && target != NULL)
+			xasprintf(cause, "no such window: %s", target);
+		else if (wl == NULL)
+			xasprintf(cause, "no current window");
+		else {
+			*oo = wl->window->options;
+			scope = OPTIONS_TABLE_WINDOW;
+		}
+		break;
+	}
+	return (scope);
+}
+
+int
 options_scope_from_flags(struct args *args, int window,
     struct cmd_find_state *fs, struct options **oo, char **cause)
 {
-	struct session	*s = fs->s;
-	struct winlink	*wl = fs->wl;
-	const char	*target= args_get(args, 't');
+	struct session		*s = fs->s;
+	struct winlink		*wl = fs->wl;
+	struct window_pane	*wp = fs->wp;
+	const char		*target = args_get(args, 't');
 
 	if (args_has(args, 's')) {
 		*oo = global_options;
 		return (OPTIONS_TABLE_SERVER);
 	}
 
-	if (window || args_has(args, 'w')) {
+	if (args_has(args, 'p')) {
+		if (wp == NULL) {
+			if (target != NULL)
+				xasprintf(cause, "no such pane: %s", target);
+			else
+				xasprintf(cause, "no current pane");
+			return (OPTIONS_TABLE_NONE);
+		}
+		*oo = wp->options;
+		return (OPTIONS_TABLE_PANE);
+	} else if (window || args_has(args, 'w')) {
 		if (args_has(args, 'g')) {
 			*oo = global_w_options;
 			return (OPTIONS_TABLE_WINDOW);

osdep-darwin.c

@@ -30,7 +30,9 @@ char			*osdep_get_name(int, char *);
 char			*osdep_get_cwd(int);
 struct event_base	*osdep_event_init(void);
 
+#ifndef __unused
 #define __unused __attribute__ ((__unused__))
+#endif
 
 char *
 osdep_get_name(int fd, __unused char *tty)
@@ -47,6 +49,7 @@ osdep_get_name(int fd, __unused char *tty)
 			&bsdinfo, sizeof bsdinfo);
 	if (ret == sizeof bsdinfo && *bsdinfo.pbsi_comm != '\0')
 		return (strdup(bsdinfo.pbsi_comm));
+	return (NULL);
 #else
 	int	mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, 0 };
 	size_t	size;

osdep-netbsd.c

@@ -133,13 +133,27 @@ char *
 osdep_get_cwd(int fd)
 {
 	static char	target[PATH_MAX + 1];
-	char		*path;
 	pid_t		pgrp;
+#ifdef KERN_PROC_CWD
+	int		mib[4];
+	size_t		len;
+#else
+	char		*path;
 	ssize_t		n;
+#endif
 
 	if ((pgrp = tcgetpgrp(fd)) == -1)
 		return (NULL);
 
+#ifdef KERN_PROC_CWD
+	mib[0] = CTL_KERN;
+	mib[1] = KERN_PROC_ARGS;
+	mib[2] = pgrp;
+	mib[3] = KERN_PROC_CWD;
+	len = sizeof(target);
+	if (sysctl(mib, __arraycount(mib), target, &len, NULL, 0) == 0)
+		return (target);
+#else
 	xasprintf(&path, "/proc/%lld/cwd", (long long) pgrp);
 	n = readlink(path, target, sizeof(target) - 1);
 	free(path);
@@ -147,6 +161,7 @@ osdep_get_cwd(int fd)
 		target[n] = '\0';
 		return (target);
 	}
+#endif
 
 	return (NULL);
 }

paste.c

@@ -157,11 +157,14 @@ paste_free(struct paste_buffer *pb)
  * that the caller is responsible for allocating data.
  */
 void
-paste_add(char *data, size_t size)
+paste_add(const char *prefix, char *data, size_t size)
 {
 	struct paste_buffer	*pb, *pb1;
 	u_int			 limit;
 
+	if (prefix == NULL)
+		prefix = "buffer";
+
 	if (size == 0) {
 		free(data);
 		return;
@@ -180,7 +183,7 @@ paste_add(char *data, size_t size)
 	pb->name = NULL;
 	do {
 		free(pb->name);
-		xasprintf(&pb->name, "buffer%04u", paste_next_index);
+		xasprintf(&pb->name, "%s%u", prefix, paste_next_index);
 		paste_next_index++;
 	} while (paste_get_name(pb->name) != NULL);
 
@@ -262,7 +265,7 @@ paste_set(char *data, size_t size, const char *name, char **cause)
 		return (0);
 	}
 	if (name == NULL) {
-		paste_add(data, size);
+		paste_add(NULL, data, size);
 		return (0);
 	}
 

proc.c

@@ -181,7 +181,7 @@ proc_start(const char *name)
 		memset(&u, 0, sizeof u);
 
 	log_debug("%s started (%ld): version %s, socket %s, protocol %d", name,
-	    (long)getpid(), VERSION, socket_path, PROTOCOL_VERSION);
+	    (long)getpid(), getversion(), socket_path, PROTOCOL_VERSION);
 	log_debug("on %s %s %s; libevent %s (%s)", u.sysname, u.release,
 	    u.version, event_get_version(), event_get_method());
 

regress/command-order.sh

@@ -0,0 +1,51 @@
+#!/bin/sh
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Ltest"
+$TMUX kill-server 2>/dev/null
+
+TMP=$(mktemp)
+trap "rm -f $TMP" 0 1 15
+
+cat <<EOF >$TMP
+new -sfoo -nfoo0; neww -nfoo1; neww -nfoo2
+new -sbar -nbar0; neww -nbar1; neww -nbar2
+EOF
+$TMUX -f$TMP start </dev/null || exit 1
+sleep 1
+$TMUX lsw -aF '#{session_name},#{window_name}'|sort >$TMP || exit 1
+$TMUX kill-server 2>/dev/null
+cat <<EOF|cmp -s $TMP - || exit 1
+bar,bar0
+bar,bar1
+bar,bar2
+foo,foo0
+foo,foo1
+foo,foo2
+EOF
+
+cat <<EOF >$TMP
+new -sfoo -nfoo0
+neww -nfoo1
+neww -nfoo2
+new -sbar -nbar0
+neww -nbar1
+neww -nbar2
+EOF
+$TMUX -f$TMP start </dev/null || exit 1
+sleep 1
+$TMUX lsw -aF '#{session_name},#{window_name}'|sort >$TMP || exit 1
+$TMUX kill-server 2>/dev/null
+cat <<EOF|cmp -s $TMP - || exit 1
+bar,bar0
+bar,bar1
+bar,bar2
+foo,foo0
+foo,foo1
+foo,foo2
+EOF
+
+exit 0

regress/conf-syntax.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Ltest"
+$TMUX kill-server 2>/dev/null
+
+for i in conf/*.conf; do
+	$TMUX -f/dev/null start \; source -n $i || exit 1
+done
+
+exit 0

regress/conf/21867280ff7e99631046f9cc669b80d2.conf

@@ -0,0 +1,8 @@
+%if #{l:1}
+set -g status-style fg=cyan,bg='#001040'
+%elif #{l:1}
+set -g status-style fg=white,bg='#400040'
+%else
+set -g status-style fg=white,bg='#800000'
+%endif
+bind ^X last-window

regress/conf/29813ff35544434e2e64dc879a8dd274.conf

@@ -0,0 +1,58 @@
+set -g prefix C-g
+# needed for e.g. mutt
+bind C-g send-prefix
+
+set -g set-titles on
+set -g status-position top
+set -g status-keys vi
+set -g mode-keys vi
+set -g base-index 1
+set -g pane-base-index 1
+set -g focus-events on
+
+set history-file ~/.tmux_SSH_history
+set focus-events on
+set -g history-limit 100000
+set -s set-clipboard on
+set -g display-time 3000
+set -g display-panes-time 3000
+
+set -g pane-border-status top
+
+setw -g window-status-current-style bg=colour240,fg=colour250
+setw -g window-status-separator "|"
+set -g status-bg colour235
+set -g status-fg colour245
+
+set -g window-status-format         " #I #{=+15:pane_title} #{=-2:?window_flags, #{window_flags},  }"
+set -g window-status-current-format " #I #{=+15:pane_title} #{=-2:?window_flags, #{window_flags},  }"
+set -g pane-border-format           " #P: #{s/ //:pane_title} "
+
+set -g renumber-windows on
+set -g status-right-length 0
+##############################################################
+
+# I prefer not to have a status for my tabbed term
+set -g status-right ""
+set -g status-right-length 0
+set -g status-left-length 0
+set -g status-left ""
+
+# some settings for "navigation"
+bind -n C-PageUp copy-mode -u
+unbind -n C-Left
+unbind -n C-Right
+bind -n C-Left  select-window -t :-
+bind -n C-Right select-window -t :+
+
+# I prefer a tiled layout and easy joining of current active pane via windows'
+# index
+bind F1 join-pane -s 1.\; select-layout tiled
+bind F2 join-pane -s 2.\; select-layout tiled
+bind F3 join-pane -s 3.\; select-layout tiled
+bind F4 join-pane -s 4.\; select-layout tiled
+bind F5 join-pane -s 5.\; select-layout tiled
+bind F6 join-pane -s 6.\; select-layout tiled
+bind F7 join-pane -s 7.\; select-layout tiled
+bind F8 join-pane -s 8.\; select-layout tiled
+bind F9 join-pane -s 9.\; select-layout tiled