Check cursor options when a pane is created, not just when they are changed.

Add an option to set the character used for unused areas of the
terminal, GitHub issue 3110.

Add a cursor-style option, from Alexis Hildebrandt in GitHub issue 2960.

Add a cursor-colour option, from Alexis Hildebrandt in GitHub issue
2959.

Add popup-border-lines option to set popup line style, from Alexis
Hildebrandt, GitHub issue 2930.

Stop caring about empty commands, just treat as a null command.

Break the colour palette into a struct rather than just a single array
and use that to support the OSC palette-setting sequences in popups.
Also add a pane-colours array option to specify the defaults. GitHub
issue 2815.

Add split-window -Z to start the pane zoomed, GitHub issue 2591.

Hide some warnings on newer GCC versions, GitHUb issue 2525.

Allow colour to be spelt as color, from Boris Verkhovsky. GitHub issue
2317.

d and D keys to reset to default in customize mode.

Separate key flags and modifiers, log key flags, make the "xterm" flag
more explicit and fix M- keys with a leading escape.

Add a customize mode where keys and options may be browsed and changed,
includes adding a brief description of each option. Bound to "C" by
default.

Drop having a separate type for style options and make them all strings,
which allows formats to be expanded. Any styles without a '#{' are still
validated when they are set but any with a '#{' are not. Formats are not
expanded usefully in many cases yet, that will be changed later.

To make this work, a few other changes:

- set-option -a with a style option automatically appends a ",".

- OSC 10 and 11 don't set the window-style option anymore, instead the
fg and bg are stored in the pane struct and act as the defaults that
can be overridden by window-style.

- status-fg and -bg now override status-style instead of trying to keep
them in sync.

Style nits in function arguments.

Rewrite options_array_set to be clearer and remove a spurious warning
with newer GCC. From Ben Boeckel.

Memory leaks, from Igor Wong in GitHub issue 1934.

Do not always set scope for panes because the window check might fail,
GitHub issue 1810.

FIx return of options_scope_from_name on error.

Add a per-pane option set. Pane options inherit from window options (so
there should be no change to existing behaviour) and are set and shown
with set-option -p and show-options -p.

Change remain-on-exit and window-style/window-active-style to be pane
options (some others will be changed later).

This makes select-pane -P and -g unnecessary so no longer document them
(they still work) and no longer document set-window-option and
show-window-options in favour of set-option -w and show-options -w.

Add a helper function to work out option table from name.

Do not try to parse command when unsetting, GitHub issue 1788.

Remove a leftover abort and some fixes from cppcheck.

Break the argument escaping code into a separate function and use it to
escape key bindings in list-keys. Also escape ~ and ; and $ properly.

Replace the split parser code (cfg.c and cmd-string.c) with a single
parser using yacc(1). This is a major change but is clearer and simpler
and allows some edge cases to be made more consistent, as well as
tidying up how aliases are handled. It will also allow some further
improvements later.

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).

The only syntax change I am aware of is that #{} outside quotes or a
comment is now considered a format and not a comment, so #{ is now a
syntax error (notably, if it is at the start of a line).

This also adds two new sections to the man page documenting the syntax
and outlining how parsing and command execution works.

Thanks to everyone who sent me test configs (they still all parse
without errors - but this doesn't mean they still work as intended!).

Thanks to Avi Halachmi for testing and man page improvements, also to
jmc@ for reviewing the man page changes.

Fix some indentation and dead assignments.

Merge hooks into options and make each one an array option. This allows
multiple commands to be easily bound to one hook. set-hook and
show-hooks remain but they are now variants of set-option and
show-options. show-options now has a -H flag to show hooks (by default
they are not shown).

Make options_tostring allocate its result instead of using a stack
buffer (needed for something in the future).

Indicate an array option with a flag rather than a special type so that
in future will not have to be strings.

The individual -fg, -bg and -attr options have been deprecated (in
favour of -style), undocumented and hidden from show-options since
2014. Remove them, except for status-fg and status-bg.

Make array options a sparse tree instead of an array of char * and
remove the size limit.

Add a way to set individual defaults for an array option.

Add a wrapper (struct style) around styles rather than using the
grid_cell directly. There will be some non-cell members soon.

Fix filtering so it works after the change to only show windows if they
have multiple panes.

Style and spacing nits.

Memory leaks, from David CARLIER.

Handle empty options correctly.

When a flag option is used in a format, it should use the number form
not string.

If given an array option without an index either show or set all items,
and support -a for array options. Allow the separator for set to be
specified in the options table (will be used for backwards compatibility
later).

Do not reset idx, it has just been set.

options_match needs to explicitly check for user options.

Correctly handle -style options without all of a corresponding -fg/-bg/-attr.

getopt() has a struct option so just return to using options_entry.

Major tidy up and rework of options tree and set-option/show-options
commands this pushes more of the code into options.c and ties it more
closely to the options table rather than having an unnecessary
split. Also add support for array options (will be used later). Only
(intentional) user visible change is that show-options output is now
passed through vis(3) with VIS_DQ so quotes are escaped.

Append needs to go old,new not new,old...

options_get_style return const too.

Make options_get_string return const string.

Simplify appending to string options.

Some tidying and tweaks to options code.

Loads more static, except for cmd-*.c and window-*.c.

Support set -a (append) with user options, suggested by Xandor Schiefer.

I no longer use my SourceForge address so replace it.

We cannot do hooks_find and then hooks_remove because it might have come
from the parent (global) tree, instead make it remove by name like options.

While here, also tidy up a few bits of options and hooks handling (use
RB_FOREACH_SAFE, and a helper function for the free).

Spacing nits.

Sync the entire xmalloc.[ch] with the other users, but with the addition
of xrealloc, xvasprintf, xvsnprintf.

Log option names in fatal() for missing option.

Move struct options into options.c.

When given an invalid style, don't set the option to the default. Fix
from J Raynor. Also make style_parse not alter the grid_cell when it
fails.

Better format for printf format attributes.

Allow replacing each of the many sets of separate foo-{fg,bg,attr}
options with a single foo-style option. For example:

set -g status-fg yellow
set -g status-bg red
set -g status-attr blink

Becomes:

set -g status-style fg=yellow,bg=red,blink

The -a flag to set can be used to add to rather than replace a style. So:

set -g status-bg red

Becomes:

set -ag status-style bg=red

Currently this is fully backwards compatible (all *-{fg,bg,attr} options
remain) but the plan is to deprecate them over time.

From Tiago Cunha.

Style and comment fixes from Tiago Cunha.

xfree is not particularly helpful, remove it. From Thomas Adam.

Use RB trees not SPLAY.

Drop the ability to have a list of keys in the prefix in favour of two
separate options, prefix and prefix2. This simplifies the code and gets
rid the data options type which was only used for this one option.

Also add a -2 flag to send-prefix to send the secondary prefix key,
fixing a cause of minor irritation.

People who want three prefix keys are out of luck :-).

Permit multiple prefix keys to be defined, separated by commas, for example:

set -g prefix ^a,^b

Any key in the list acts as the prefix. The send-prefix command always sends
the first key in the list.

Use option print function for info messages as well.

Drop tiny union from option struct.

Make some functions which return unused values void (mostly found by lint) and
tweak a redundant expression in window_pane_set_mode.

Import tmux, a terminal multiplexor allowing (among other things) a single
terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti

Add an option to set the character used for unused areas of the
terminal, GitHub issue 3110.

Add a cursor-style option, from Alexis Hildebrandt in GitHub issue 2960.

Add a cursor-colour option, from Alexis Hildebrandt in GitHub issue
2959.

Add popup-border-lines option to set popup line style, from Alexis
Hildebrandt, GitHub issue 2930.

Stop caring about empty commands, just treat as a null command.

Break the colour palette into a struct rather than just a single array
and use that to support the OSC palette-setting sequences in popups.
Also add a pane-colours array option to specify the defaults. GitHub
issue 2815.

Add split-window -Z to start the pane zoomed, GitHub issue 2591.

Hide some warnings on newer GCC versions, GitHUb issue 2525.

Allow colour to be spelt as color, from Boris Verkhovsky. GitHub issue
2317.

d and D keys to reset to default in customize mode.

Separate key flags and modifiers, log key flags, make the "xterm" flag
more explicit and fix M- keys with a leading escape.

Add a customize mode where keys and options may be browsed and changed,
includes adding a brief description of each option. Bound to "C" by
default.

Drop having a separate type for style options and make them all strings,
which allows formats to be expanded. Any styles without a '#{' are still
validated when they are set but any with a '#{' are not. Formats are not
expanded usefully in many cases yet, that will be changed later.

To make this work, a few other changes:

- set-option -a with a style option automatically appends a ",".

- OSC 10 and 11 don't set the window-style option anymore, instead the
fg and bg are stored in the pane struct and act as the defaults that
can be overridden by window-style.

- status-fg and -bg now override status-style instead of trying to keep
them in sync.

Style nits in function arguments.

Rewrite options_array_set to be clearer and remove a spurious warning
with newer GCC. From Ben Boeckel.

Memory leaks, from Igor Wong in GitHub issue 1934.

Do not always set scope for panes because the window check might fail,
GitHub issue 1810.

FIx return of options_scope_from_name on error.

Add a per-pane option set. Pane options inherit from window options (so
there should be no change to existing behaviour) and are set and shown
with set-option -p and show-options -p.

Change remain-on-exit and window-style/window-active-style to be pane
options (some others will be changed later).

This makes select-pane -P and -g unnecessary so no longer document them
(they still work) and no longer document set-window-option and
show-window-options in favour of set-option -w and show-options -w.

Add a helper function to work out option table from name.

Do not try to parse command when unsetting, GitHub issue 1788.

Remove a leftover abort and some fixes from cppcheck.

Break the argument escaping code into a separate function and use it to
escape key bindings in list-keys. Also escape ~ and ; and $ properly.

Replace the split parser code (cfg.c and cmd-string.c) with a single
parser using yacc(1). This is a major change but is clearer and simpler
and allows some edge cases to be made more consistent, as well as
tidying up how aliases are handled. It will also allow some further
improvements later.

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).

The only syntax change I am aware of is that #{} outside quotes or a
comment is now considered a format and not a comment, so #{ is now a
syntax error (notably, if it is at the start of a line).

This also adds two new sections to the man page documenting the syntax
and outlining how parsing and command execution works.

Thanks to everyone who sent me test configs (they still all parse
without errors - but this doesn't mean they still work as intended!).

Thanks to Avi Halachmi for testing and man page improvements, also to
jmc@ for reviewing the man page changes.

Fix some indentation and dead assignments.

Merge hooks into options and make each one an array option. This allows
multiple commands to be easily bound to one hook. set-hook and
show-hooks remain but they are now variants of set-option and
show-options. show-options now has a -H flag to show hooks (by default
they are not shown).

Make options_tostring allocate its result instead of using a stack
buffer (needed for something in the future).

Indicate an array option with a flag rather than a special type so that
in future will not have to be strings.

The individual -fg, -bg and -attr options have been deprecated (in
favour of -style), undocumented and hidden from show-options since
2014. Remove them, except for status-fg and status-bg.

Make array options a sparse tree instead of an array of char * and
remove the size limit.

Add a way to set individual defaults for an array option.

Add a wrapper (struct style) around styles rather than using the
grid_cell directly. There will be some non-cell members soon.

Fix filtering so it works after the change to only show windows if they
have multiple panes.

Style and spacing nits.

Memory leaks, from David CARLIER.

Handle empty options correctly.

When a flag option is used in a format, it should use the number form
not string.

If given an array option without an index either show or set all items,
and support -a for array options. Allow the separator for set to be
specified in the options table (will be used for backwards compatibility
later).

Do not reset idx, it has just been set.

options_match needs to explicitly check for user options.

Correctly handle -style options without all of a corresponding -fg/-bg/-attr.

getopt() has a struct option so just return to using options_entry.

Major tidy up and rework of options tree and set-option/show-options
commands this pushes more of the code into options.c and ties it more
closely to the options table rather than having an unnecessary
split. Also add support for array options (will be used later). Only
(intentional) user visible change is that show-options output is now
passed through vis(3) with VIS_DQ so quotes are escaped.

Append needs to go old,new not new,old...

options_get_style return const too.

Make options_get_string return const string.

Simplify appending to string options.

Some tidying and tweaks to options code.

Loads more static, except for cmd-*.c and window-*.c.

Support set -a (append) with user options, suggested by Xandor Schiefer.

I no longer use my SourceForge address so replace it.

We cannot do hooks_find and then hooks_remove because it might have come
from the parent (global) tree, instead make it remove by name like options.

While here, also tidy up a few bits of options and hooks handling (use
RB_FOREACH_SAFE, and a helper function for the free).

Spacing nits.

Sync the entire xmalloc.[ch] with the other users, but with the addition
of xrealloc, xvasprintf, xvsnprintf.

Log option names in fatal() for missing option.

Move struct options into options.c.

When given an invalid style, don't set the option to the default. Fix
from J Raynor. Also make style_parse not alter the grid_cell when it
fails.

Better format for printf format attributes.

Allow replacing each of the many sets of separate foo-{fg,bg,attr}
options with a single foo-style option. For example:

set -g status-fg yellow
set -g status-bg red
set -g status-attr blink

Becomes:

set -g status-style fg=yellow,bg=red,blink

The -a flag to set can be used to add to rather than replace a style. So:

set -g status-bg red

Becomes:

set -ag status-style bg=red

Currently this is fully backwards compatible (all *-{fg,bg,attr} options
remain) but the plan is to deprecate them over time.

From Tiago Cunha.

Style and comment fixes from Tiago Cunha.

xfree is not particularly helpful, remove it. From Thomas Adam.

Use RB trees not SPLAY.

Drop the ability to have a list of keys in the prefix in favour of two
separate options, prefix and prefix2. This simplifies the code and gets
rid the data options type which was only used for this one option.

Also add a -2 flag to send-prefix to send the secondary prefix key,
fixing a cause of minor irritation.

People who want three prefix keys are out of luck :-).

Permit multiple prefix keys to be defined, separated by commas, for example:

set -g prefix ^a,^b

Any key in the list acts as the prefix. The send-prefix command always sends
the first key in the list.

Use option print function for info messages as well.

Drop tiny union from option struct.

Make some functions which return unused values void (mostly found by lint) and
tweak a redundant expression in window_pane_set_mode.

Import tmux, a terminal multiplexor allowing (among other things) a single
terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti

Add a cursor-style option, from Alexis Hildebrandt in GitHub issue 2960.

Add a cursor-colour option, from Alexis Hildebrandt in GitHub issue
2959.

Add popup-border-lines option to set popup line style, from Alexis
Hildebrandt, GitHub issue 2930.

Stop caring about empty commands, just treat as a null command.

Break the colour palette into a struct rather than just a single array
and use that to support the OSC palette-setting sequences in popups.
Also add a pane-colours array option to specify the defaults. GitHub
issue 2815.

Add split-window -Z to start the pane zoomed, GitHub issue 2591.

Hide some warnings on newer GCC versions, GitHUb issue 2525.

Allow colour to be spelt as color, from Boris Verkhovsky. GitHub issue
2317.

d and D keys to reset to default in customize mode.

Separate key flags and modifiers, log key flags, make the "xterm" flag
more explicit and fix M- keys with a leading escape.

Add a customize mode where keys and options may be browsed and changed,
includes adding a brief description of each option. Bound to "C" by
default.

Drop having a separate type for style options and make them all strings,
which allows formats to be expanded. Any styles without a '#{' are still
validated when they are set but any with a '#{' are not. Formats are not
expanded usefully in many cases yet, that will be changed later.

To make this work, a few other changes:

- set-option -a with a style option automatically appends a ",".

- OSC 10 and 11 don't set the window-style option anymore, instead the
fg and bg are stored in the pane struct and act as the defaults that
can be overridden by window-style.

- status-fg and -bg now override status-style instead of trying to keep
them in sync.

Style nits in function arguments.

Rewrite options_array_set to be clearer and remove a spurious warning
with newer GCC. From Ben Boeckel.

Memory leaks, from Igor Wong in GitHub issue 1934.

Do not always set scope for panes because the window check might fail,
GitHub issue 1810.

FIx return of options_scope_from_name on error.

Add a per-pane option set. Pane options inherit from window options (so
there should be no change to existing behaviour) and are set and shown
with set-option -p and show-options -p.

Change remain-on-exit and window-style/window-active-style to be pane
options (some others will be changed later).

This makes select-pane -P and -g unnecessary so no longer document them
(they still work) and no longer document set-window-option and
show-window-options in favour of set-option -w and show-options -w.

Add a helper function to work out option table from name.

Do not try to parse command when unsetting, GitHub issue 1788.

Remove a leftover abort and some fixes from cppcheck.

Break the argument escaping code into a separate function and use it to
escape key bindings in list-keys. Also escape ~ and ; and $ properly.

Replace the split parser code (cfg.c and cmd-string.c) with a single
parser using yacc(1). This is a major change but is clearer and simpler
and allows some edge cases to be made more consistent, as well as
tidying up how aliases are handled. It will also allow some further
improvements later.

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).

The only syntax change I am aware of is that #{} outside quotes or a
comment is now considered a format and not a comment, so #{ is now a
syntax error (notably, if it is at the start of a line).

This also adds two new sections to the man page documenting the syntax
and outlining how parsing and command execution works.

Thanks to everyone who sent me test configs (they still all parse
without errors - but this doesn't mean they still work as intended!).

Thanks to Avi Halachmi for testing and man page improvements, also to
jmc@ for reviewing the man page changes.

Fix some indentation and dead assignments.

Merge hooks into options and make each one an array option. This allows
multiple commands to be easily bound to one hook. set-hook and
show-hooks remain but they are now variants of set-option and
show-options. show-options now has a -H flag to show hooks (by default
they are not shown).

Make options_tostring allocate its result instead of using a stack
buffer (needed for something in the future).

Indicate an array option with a flag rather than a special type so that
in future will not have to be strings.

The individual -fg, -bg and -attr options have been deprecated (in
favour of -style), undocumented and hidden from show-options since
2014. Remove them, except for status-fg and status-bg.

Make array options a sparse tree instead of an array of char * and
remove the size limit.

Add a way to set individual defaults for an array option.

Add a wrapper (struct style) around styles rather than using the
grid_cell directly. There will be some non-cell members soon.

Fix filtering so it works after the change to only show windows if they
have multiple panes.

Style and spacing nits.

Memory leaks, from David CARLIER.

Handle empty options correctly.

When a flag option is used in a format, it should use the number form
not string.

If given an array option without an index either show or set all items,
and support -a for array options. Allow the separator for set to be
specified in the options table (will be used for backwards compatibility
later).

Do not reset idx, it has just been set.

options_match needs to explicitly check for user options.

Correctly handle -style options without all of a corresponding -fg/-bg/-attr.

getopt() has a struct option so just return to using options_entry.

Major tidy up and rework of options tree and set-option/show-options
commands this pushes more of the code into options.c and ties it more
closely to the options table rather than having an unnecessary
split. Also add support for array options (will be used later). Only
(intentional) user visible change is that show-options output is now
passed through vis(3) with VIS_DQ so quotes are escaped.

Append needs to go old,new not new,old...

options_get_style return const too.

Make options_get_string return const string.

Simplify appending to string options.

Some tidying and tweaks to options code.

Loads more static, except for cmd-*.c and window-*.c.

Support set -a (append) with user options, suggested by Xandor Schiefer.

I no longer use my SourceForge address so replace it.

We cannot do hooks_find and then hooks_remove because it might have come
from the parent (global) tree, instead make it remove by name like options.

While here, also tidy up a few bits of options and hooks handling (use
RB_FOREACH_SAFE, and a helper function for the free).

Spacing nits.

Sync the entire xmalloc.[ch] with the other users, but with the addition
of xrealloc, xvasprintf, xvsnprintf.

Log option names in fatal() for missing option.

Move struct options into options.c.

When given an invalid style, don't set the option to the default. Fix
from J Raynor. Also make style_parse not alter the grid_cell when it
fails.

Better format for printf format attributes.

Allow replacing each of the many sets of separate foo-{fg,bg,attr}
options with a single foo-style option. For example:

set -g status-fg yellow
set -g status-bg red
set -g status-attr blink

Becomes:

set -g status-style fg=yellow,bg=red,blink

The -a flag to set can be used to add to rather than replace a style. So:

set -g status-bg red

Becomes:

set -ag status-style bg=red

Currently this is fully backwards compatible (all *-{fg,bg,attr} options
remain) but the plan is to deprecate them over time.

From Tiago Cunha.

Style and comment fixes from Tiago Cunha.

xfree is not particularly helpful, remove it. From Thomas Adam.

Use RB trees not SPLAY.

Drop the ability to have a list of keys in the prefix in favour of two
separate options, prefix and prefix2. This simplifies the code and gets
rid the data options type which was only used for this one option.

Also add a -2 flag to send-prefix to send the secondary prefix key,
fixing a cause of minor irritation.

People who want three prefix keys are out of luck :-).

Permit multiple prefix keys to be defined, separated by commas, for example:

set -g prefix ^a,^b

Any key in the list acts as the prefix. The send-prefix command always sends
the first key in the list.

Use option print function for info messages as well.

Drop tiny union from option struct.

Make some functions which return unused values void (mostly found by lint) and
tweak a redundant expression in window_pane_set_mode.

Import tmux, a terminal multiplexor allowing (among other things) a single
terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti

Add a cursor-colour option, from Alexis Hildebrandt in GitHub issue
2959.

Add popup-border-lines option to set popup line style, from Alexis
Hildebrandt, GitHub issue 2930.

Stop caring about empty commands, just treat as a null command.

Break the colour palette into a struct rather than just a single array
and use that to support the OSC palette-setting sequences in popups.
Also add a pane-colours array option to specify the defaults. GitHub
issue 2815.

Add split-window -Z to start the pane zoomed, GitHub issue 2591.

Hide some warnings on newer GCC versions, GitHUb issue 2525.

Allow colour to be spelt as color, from Boris Verkhovsky. GitHub issue
2317.

d and D keys to reset to default in customize mode.

Separate key flags and modifiers, log key flags, make the "xterm" flag
more explicit and fix M- keys with a leading escape.

Add a customize mode where keys and options may be browsed and changed,
includes adding a brief description of each option. Bound to "C" by
default.

Drop having a separate type for style options and make them all strings,
which allows formats to be expanded. Any styles without a '#{' are still
validated when they are set but any with a '#{' are not. Formats are not
expanded usefully in many cases yet, that will be changed later.

To make this work, a few other changes:

- set-option -a with a style option automatically appends a ",".

- OSC 10 and 11 don't set the window-style option anymore, instead the
fg and bg are stored in the pane struct and act as the defaults that
can be overridden by window-style.

- status-fg and -bg now override status-style instead of trying to keep
them in sync.

Style nits in function arguments.

Rewrite options_array_set to be clearer and remove a spurious warning
with newer GCC. From Ben Boeckel.

Memory leaks, from Igor Wong in GitHub issue 1934.

Do not always set scope for panes because the window check might fail,
GitHub issue 1810.

FIx return of options_scope_from_name on error.

Add a per-pane option set. Pane options inherit from window options (so
there should be no change to existing behaviour) and are set and shown
with set-option -p and show-options -p.

Change remain-on-exit and window-style/window-active-style to be pane
options (some others will be changed later).

This makes select-pane -P and -g unnecessary so no longer document them
(they still work) and no longer document set-window-option and
show-window-options in favour of set-option -w and show-options -w.

Add a helper function to work out option table from name.

Do not try to parse command when unsetting, GitHub issue 1788.

Remove a leftover abort and some fixes from cppcheck.

Break the argument escaping code into a separate function and use it to
escape key bindings in list-keys. Also escape ~ and ; and $ properly.

Replace the split parser code (cfg.c and cmd-string.c) with a single
parser using yacc(1). This is a major change but is clearer and simpler
and allows some edge cases to be made more consistent, as well as
tidying up how aliases are handled. It will also allow some further
improvements later.

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).

The only syntax change I am aware of is that #{} outside quotes or a
comment is now considered a format and not a comment, so #{ is now a
syntax error (notably, if it is at the start of a line).

This also adds two new sections to the man page documenting the syntax
and outlining how parsing and command execution works.

Thanks to everyone who sent me test configs (they still all parse
without errors - but this doesn't mean they still work as intended!).

Thanks to Avi Halachmi for testing and man page improvements, also to
jmc@ for reviewing the man page changes.

Fix some indentation and dead assignments.

Merge hooks into options and make each one an array option. This allows
multiple commands to be easily bound to one hook. set-hook and
show-hooks remain but they are now variants of set-option and
show-options. show-options now has a -H flag to show hooks (by default
they are not shown).

Make options_tostring allocate its result instead of using a stack
buffer (needed for something in the future).

Indicate an array option with a flag rather than a special type so that
in future will not have to be strings.

The individual -fg, -bg and -attr options have been deprecated (in
favour of -style), undocumented and hidden from show-options since
2014. Remove them, except for status-fg and status-bg.

Make array options a sparse tree instead of an array of char * and
remove the size limit.

Add a way to set individual defaults for an array option.

Add a wrapper (struct style) around styles rather than using the
grid_cell directly. There will be some non-cell members soon.

Fix filtering so it works after the change to only show windows if they
have multiple panes.

Style and spacing nits.

Memory leaks, from David CARLIER.

Handle empty options correctly.

When a flag option is used in a format, it should use the number form
not string.

If given an array option without an index either show or set all items,
and support -a for array options. Allow the separator for set to be
specified in the options table (will be used for backwards compatibility
later).

Do not reset idx, it has just been set.

options_match needs to explicitly check for user options.

Correctly handle -style options without all of a corresponding -fg/-bg/-attr.

getopt() has a struct option so just return to using options_entry.

Major tidy up and rework of options tree and set-option/show-options
commands this pushes more of the code into options.c and ties it more
closely to the options table rather than having an unnecessary
split. Also add support for array options (will be used later). Only
(intentional) user visible change is that show-options output is now
passed through vis(3) with VIS_DQ so quotes are escaped.

Append needs to go old,new not new,old...

options_get_style return const too.

Make options_get_string return const string.

Simplify appending to string options.

Some tidying and tweaks to options code.

Loads more static, except for cmd-*.c and window-*.c.

Support set -a (append) with user options, suggested by Xandor Schiefer.

I no longer use my SourceForge address so replace it.

We cannot do hooks_find and then hooks_remove because it might have come
from the parent (global) tree, instead make it remove by name like options.

While here, also tidy up a few bits of options and hooks handling (use
RB_FOREACH_SAFE, and a helper function for the free).

Spacing nits.

Sync the entire xmalloc.[ch] with the other users, but with the addition
of xrealloc, xvasprintf, xvsnprintf.

Log option names in fatal() for missing option.

Move struct options into options.c.

When given an invalid style, don't set the option to the default. Fix
from J Raynor. Also make style_parse not alter the grid_cell when it
fails.

Better format for printf format attributes.

Allow replacing each of the many sets of separate foo-{fg,bg,attr}
options with a single foo-style option. For example:

set -g status-fg yellow
set -g status-bg red
set -g status-attr blink

Becomes:

set -g status-style fg=yellow,bg=red,blink

The -a flag to set can be used to add to rather than replace a style. So:

set -g status-bg red

Becomes:

set -ag status-style bg=red

Currently this is fully backwards compatible (all *-{fg,bg,attr} options
remain) but the plan is to deprecate them over time.

From Tiago Cunha.

Style and comment fixes from Tiago Cunha.

xfree is not particularly helpful, remove it. From Thomas Adam.

Use RB trees not SPLAY.

Drop the ability to have a list of keys in the prefix in favour of two
separate options, prefix and prefix2. This simplifies the code and gets
rid the data options type which was only used for this one option.

Also add a -2 flag to send-prefix to send the secondary prefix key,
fixing a cause of minor irritation.

People who want three prefix keys are out of luck :-).

Permit multiple prefix keys to be defined, separated by commas, for example:

set -g prefix ^a,^b

Any key in the list acts as the prefix. The send-prefix command always sends
the first key in the list.

Use option print function for info messages as well.

Drop tiny union from option struct.

Make some functions which return unused values void (mostly found by lint) and
tweak a redundant expression in window_pane_set_mode.

Import tmux, a terminal multiplexor allowing (among other things) a single
terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti

Add popup-border-lines option to set popup line style, from Alexis
Hildebrandt, GitHub issue 2930.

Stop caring about empty commands, just treat as a null command.

Break the colour palette into a struct rather than just a single array
and use that to support the OSC palette-setting sequences in popups.
Also add a pane-colours array option to specify the defaults. GitHub
issue 2815.

Add split-window -Z to start the pane zoomed, GitHub issue 2591.

Hide some warnings on newer GCC versions, GitHUb issue 2525.

Allow colour to be spelt as color, from Boris Verkhovsky. GitHub issue
2317.

d and D keys to reset to default in customize mode.

Separate key flags and modifiers, log key flags, make the "xterm" flag
more explicit and fix M- keys with a leading escape.

Add a customize mode where keys and options may be browsed and changed,
includes adding a brief description of each option. Bound to "C" by
default.

Drop having a separate type for style options and make them all strings,
which allows formats to be expanded. Any styles without a '#{' are still
validated when they are set but any with a '#{' are not. Formats are not
expanded usefully in many cases yet, that will be changed later.

To make this work, a few other changes:

- set-option -a with a style option automatically appends a ",".

- OSC 10 and 11 don't set the window-style option anymore, instead the
fg and bg are stored in the pane struct and act as the defaults that
can be overridden by window-style.

- status-fg and -bg now override status-style instead of trying to keep
them in sync.

Style nits in function arguments.

Rewrite options_array_set to be clearer and remove a spurious warning
with newer GCC. From Ben Boeckel.

Memory leaks, from Igor Wong in GitHub issue 1934.

Do not always set scope for panes because the window check might fail,
GitHub issue 1810.

FIx return of options_scope_from_name on error.

Add a per-pane option set. Pane options inherit from window options (so
there should be no change to existing behaviour) and are set and shown
with set-option -p and show-options -p.

Change remain-on-exit and window-style/window-active-style to be pane
options (some others will be changed later).

This makes select-pane -P and -g unnecessary so no longer document them
(they still work) and no longer document set-window-option and
show-window-options in favour of set-option -w and show-options -w.

Add a helper function to work out option table from name.

Do not try to parse command when unsetting, GitHub issue 1788.

Remove a leftover abort and some fixes from cppcheck.

Break the argument escaping code into a separate function and use it to
escape key bindings in list-keys. Also escape ~ and ; and $ properly.

Replace the split parser code (cfg.c and cmd-string.c) with a single
parser using yacc(1). This is a major change but is clearer and simpler
and allows some edge cases to be made more consistent, as well as
tidying up how aliases are handled. It will also allow some further
improvements later.

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).

The only syntax change I am aware of is that #{} outside quotes or a
comment is now considered a format and not a comment, so #{ is now a
syntax error (notably, if it is at the start of a line).

This also adds two new sections to the man page documenting the syntax
and outlining how parsing and command execution works.

Thanks to everyone who sent me test configs (they still all parse
without errors - but this doesn't mean they still work as intended!).

Thanks to Avi Halachmi for testing and man page improvements, also to
jmc@ for reviewing the man page changes.

Fix some indentation and dead assignments.

Merge hooks into options and make each one an array option. This allows
multiple commands to be easily bound to one hook. set-hook and
show-hooks remain but they are now variants of set-option and
show-options. show-options now has a -H flag to show hooks (by default
they are not shown).

Make options_tostring allocate its result instead of using a stack
buffer (needed for something in the future).

Indicate an array option with a flag rather than a special type so that
in future will not have to be strings.

The individual -fg, -bg and -attr options have been deprecated (in
favour of -style), undocumented and hidden from show-options since
2014. Remove them, except for status-fg and status-bg.

Make array options a sparse tree instead of an array of char * and
remove the size limit.

Add a way to set individual defaults for an array option.

Add a wrapper (struct style) around styles rather than using the
grid_cell directly. There will be some non-cell members soon.

Fix filtering so it works after the change to only show windows if they
have multiple panes.

Style and spacing nits.

Memory leaks, from David CARLIER.

Handle empty options correctly.

When a flag option is used in a format, it should use the number form
not string.

If given an array option without an index either show or set all items,
and support -a for array options. Allow the separator for set to be
specified in the options table (will be used for backwards compatibility
later).

Do not reset idx, it has just been set.

options_match needs to explicitly check for user options.

Correctly handle -style options without all of a corresponding -fg/-bg/-attr.

getopt() has a struct option so just return to using options_entry.

Major tidy up and rework of options tree and set-option/show-options
commands this pushes more of the code into options.c and ties it more
closely to the options table rather than having an unnecessary
split. Also add support for array options (will be used later). Only
(intentional) user visible change is that show-options output is now
passed through vis(3) with VIS_DQ so quotes are escaped.

Append needs to go old,new not new,old...

options_get_style return const too.

Make options_get_string return const string.

Simplify appending to string options.

Some tidying and tweaks to options code.

Loads more static, except for cmd-*.c and window-*.c.

Support set -a (append) with user options, suggested by Xandor Schiefer.

I no longer use my SourceForge address so replace it.

We cannot do hooks_find and then hooks_remove because it might have come
from the parent (global) tree, instead make it remove by name like options.

While here, also tidy up a few bits of options and hooks handling (use
RB_FOREACH_SAFE, and a helper function for the free).

Spacing nits.

Sync the entire xmalloc.[ch] with the other users, but with the addition
of xrealloc, xvasprintf, xvsnprintf.

Log option names in fatal() for missing option.

Move struct options into options.c.

When given an invalid style, don't set the option to the default. Fix
from J Raynor. Also make style_parse not alter the grid_cell when it
fails.

Better format for printf format attributes.

Allow replacing each of the many sets of separate foo-{fg,bg,attr}
options with a single foo-style option. For example:

set -g status-fg yellow
set -g status-bg red
set -g status-attr blink

Becomes:

set -g status-style fg=yellow,bg=red,blink

The -a flag to set can be used to add to rather than replace a style. So:

set -g status-bg red

Becomes:

set -ag status-style bg=red

Currently this is fully backwards compatible (all *-{fg,bg,attr} options
remain) but the plan is to deprecate them over time.

From Tiago Cunha.

Style and comment fixes from Tiago Cunha.

xfree is not particularly helpful, remove it. From Thomas Adam.

Use RB trees not SPLAY.

Drop the ability to have a list of keys in the prefix in favour of two
separate options, prefix and prefix2. This simplifies the code and gets
rid the data options type which was only used for this one option.

Also add a -2 flag to send-prefix to send the secondary prefix key,
fixing a cause of minor irritation.

People who want three prefix keys are out of luck :-).

Permit multiple prefix keys to be defined, separated by commas, for example:

set -g prefix ^a,^b

Any key in the list acts as the prefix. The send-prefix command always sends
the first key in the list.

Use option print function for info messages as well.

Drop tiny union from option struct.

Make some functions which return unused values void (mostly found by lint) and
tweak a redundant expression in window_pane_set_mode.

Import tmux, a terminal multiplexor allowing (among other things) a single
terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti

Stop caring about empty commands, just treat as a null command.

Break the colour palette into a struct rather than just a single array
and use that to support the OSC palette-setting sequences in popups.
Also add a pane-colours array option to specify the defaults. GitHub
issue 2815.

Add split-window -Z to start the pane zoomed, GitHub issue 2591.

Hide some warnings on newer GCC versions, GitHUb issue 2525.

Allow colour to be spelt as color, from Boris Verkhovsky. GitHub issue
2317.

d and D keys to reset to default in customize mode.

Separate key flags and modifiers, log key flags, make the "xterm" flag
more explicit and fix M- keys with a leading escape.

Add a customize mode where keys and options may be browsed and changed,
includes adding a brief description of each option. Bound to "C" by
default.

Drop having a separate type for style options and make them all strings,
which allows formats to be expanded. Any styles without a '#{' are still
validated when they are set but any with a '#{' are not. Formats are not
expanded usefully in many cases yet, that will be changed later.

To make this work, a few other changes:

- set-option -a with a style option automatically appends a ",".

- OSC 10 and 11 don't set the window-style option anymore, instead the
fg and bg are stored in the pane struct and act as the defaults that
can be overridden by window-style.

- status-fg and -bg now override status-style instead of trying to keep
them in sync.

Style nits in function arguments.

Rewrite options_array_set to be clearer and remove a spurious warning
with newer GCC. From Ben Boeckel.

Memory leaks, from Igor Wong in GitHub issue 1934.

Do not always set scope for panes because the window check might fail,
GitHub issue 1810.

FIx return of options_scope_from_name on error.

Add a per-pane option set. Pane options inherit from window options (so
there should be no change to existing behaviour) and are set and shown
with set-option -p and show-options -p.

Change remain-on-exit and window-style/window-active-style to be pane
options (some others will be changed later).

This makes select-pane -P and -g unnecessary so no longer document them
(they still work) and no longer document set-window-option and
show-window-options in favour of set-option -w and show-options -w.

Add a helper function to work out option table from name.

Do not try to parse command when unsetting, GitHub issue 1788.

Remove a leftover abort and some fixes from cppcheck.

Break the argument escaping code into a separate function and use it to
escape key bindings in list-keys. Also escape ~ and ; and $ properly.

Replace the split parser code (cfg.c and cmd-string.c) with a single
parser using yacc(1). This is a major change but is clearer and simpler
and allows some edge cases to be made more consistent, as well as
tidying up how aliases are handled. It will also allow some further
improvements later.

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).

The only syntax change I am aware of is that #{} outside quotes or a
comment is now considered a format and not a comment, so #{ is now a
syntax error (notably, if it is at the start of a line).

This also adds two new sections to the man page documenting the syntax
and outlining how parsing and command execution works.

Thanks to everyone who sent me test configs (they still all parse
without errors - but this doesn't mean they still work as intended!).

Thanks to Avi Halachmi for testing and man page improvements, also to
jmc@ for reviewing the man page changes.

Fix some indentation and dead assignments.

Merge hooks into options and make each one an array option. This allows
multiple commands to be easily bound to one hook. set-hook and
show-hooks remain but they are now variants of set-option and
show-options. show-options now has a -H flag to show hooks (by default
they are not shown).

Make options_tostring allocate its result instead of using a stack
buffer (needed for something in the future).

Indicate an array option with a flag rather than a special type so that
in future will not have to be strings.

The individual -fg, -bg and -attr options have been deprecated (in
favour of -style), undocumented and hidden from show-options since
2014. Remove them, except for status-fg and status-bg.

Make array options a sparse tree instead of an array of char * and
remove the size limit.

Add a way to set individual defaults for an array option.

Add a wrapper (struct style) around styles rather than using the
grid_cell directly. There will be some non-cell members soon.

Fix filtering so it works after the change to only show windows if they
have multiple panes.

Style and spacing nits.

Memory leaks, from David CARLIER.

Handle empty options correctly.

When a flag option is used in a format, it should use the number form
not string.

If given an array option without an index either show or set all items,
and support -a for array options. Allow the separator for set to be
specified in the options table (will be used for backwards compatibility
later).

Do not reset idx, it has just been set.

options_match needs to explicitly check for user options.

Correctly handle -style options without all of a corresponding -fg/-bg/-attr.

getopt() has a struct option so just return to using options_entry.

Major tidy up and rework of options tree and set-option/show-options
commands this pushes more of the code into options.c and ties it more
closely to the options table rather than having an unnecessary
split. Also add support for array options (will be used later). Only
(intentional) user visible change is that show-options output is now
passed through vis(3) with VIS_DQ so quotes are escaped.

Append needs to go old,new not new,old...

options_get_style return const too.

Make options_get_string return const string.

Simplify appending to string options.

Some tidying and tweaks to options code.

Loads more static, except for cmd-*.c and window-*.c.

Support set -a (append) with user options, suggested by Xandor Schiefer.

I no longer use my SourceForge address so replace it.

We cannot do hooks_find and then hooks_remove because it might have come
from the parent (global) tree, instead make it remove by name like options.

While here, also tidy up a few bits of options and hooks handling (use
RB_FOREACH_SAFE, and a helper function for the free).

Spacing nits.

Sync the entire xmalloc.[ch] with the other users, but with the addition
of xrealloc, xvasprintf, xvsnprintf.

Log option names in fatal() for missing option.

Move struct options into options.c.

When given an invalid style, don't set the option to the default. Fix
from J Raynor. Also make style_parse not alter the grid_cell when it
fails.

Better format for printf format attributes.

Allow replacing each of the many sets of separate foo-{fg,bg,attr}
options with a single foo-style option. For example:

set -g status-fg yellow
set -g status-bg red
set -g status-attr blink

Becomes:

set -g status-style fg=yellow,bg=red,blink

The -a flag to set can be used to add to rather than replace a style. So:

set -g status-bg red

Becomes:

set -ag status-style bg=red

Currently this is fully backwards compatible (all *-{fg,bg,attr} options
remain) but the plan is to deprecate them over time.

From Tiago Cunha.

Style and comment fixes from Tiago Cunha.

xfree is not particularly helpful, remove it. From Thomas Adam.

Use RB trees not SPLAY.

Drop the ability to have a list of keys in the prefix in favour of two
separate options, prefix and prefix2. This simplifies the code and gets
rid the data options type which was only used for this one option.

Also add a -2 flag to send-prefix to send the secondary prefix key,
fixing a cause of minor irritation.

People who want three prefix keys are out of luck :-).

Permit multiple prefix keys to be defined, separated by commas, for example:

set -g prefix ^a,^b

Any key in the list acts as the prefix. The send-prefix command always sends
the first key in the list.

Use option print function for info messages as well.

Drop tiny union from option struct.

Make some functions which return unused values void (mostly found by lint) and
tweak a redundant expression in window_pane_set_mode.

Import tmux, a terminal multiplexor allowing (among other things) a single
terminal to be switched between several different windows and programs
displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti

Break the colour palette into a struct rather than just a single array
and use that to support the OSC palette-setting sequences in popups.
Also add a pane-colours array option to specify the defaults. GitHub
issue 2815.

Add split-window -Z to start the pane zoomed, GitHub issue 2591.

Hide some warnings on newer GCC versions, GitHUb issue 2525.

Allow colour to be spelt as color, from Boris Verkhovsky. GitHub issue
2317.

d and D keys to reset to default in customize mode.

Separate key flags and modifiers, log key flags, make the "xterm" flag
more explicit and fix M- keys with a leading escape.

Add a customize mode where keys and options may be browsed and changed,
includes adding a brief description of each option. Bound to "C" by
default.

Drop having a separate type for style options and make them all strings,
which allows formats to be expanded. Any styles without a '#{' are still
validated when they are set but any with a '#{' are not. Formats are not
expanded usefully in many cases yet, that will be changed later.

To make this work, a few other changes:

- set-option -a with a style option automatically appends a ",".

- OSC 10 and 11 don't set the window-style option anymore, instead the
fg and bg are stored in the pane struct and act as the defaults that
can be overridden by window-style.

- status-fg and -bg now override status-style instead of trying to keep
them in sync.

Style nits in function arguments.

Rewrite options_array_set to be clearer and remove a spurious warning
with newer GCC. From Ben Boeckel.

Memory leaks, from Igor Wong in GitHub issue 1934.

Do not always set scope for panes because the window check might fail,
GitHub issue 1810.

FIx return of options_scope_from_name on error.

Add a per-pane option set. Pane options inherit from window options (so
there should be no change to existing behaviour) and are set and shown
with set-option -p and show-options -p.

Change remain-on-exit and window-style/window-active-style to be pane
options (some others will be changed later).

This makes select-pane -P and -g unnecessary so no longer document them
(they still work) and no longer document set-window-option and
show-window-options in favour of set-option -w and show-options -w.

Add a helper function to work out option table from name.

Do not try to parse command when unsetting, GitHub issue 1788.

Remove a leftover abort and some fixes from cppcheck.

Break the argument escaping code into a separate function and use it to
escape key bindings in list-keys. Also escape ~ and ; and $ properly.

Replace the split parser code (cfg.c and cmd-string.c) with a single
parser using yacc(1). This is a major change but is clearer and simpler
and allows some edge cases to be made more consistent, as well as
tidying up how aliases are handled. It will also allow some further
improvements later.

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).

The only syntax change I am aware of is that #{} outside quotes or a
comment is now considered a format and not a comment, so #{ is now a
syntax error (notably, if it is at the start of a line).

This also adds two new sections to the man page documenting the syntax
and outlining how parsing and command execution works.

Thanks to everyone who sent me test configs (they still all parse
without errors - but this doesn't mean they still work as intended!).

Thanks to Avi Halachmi for testing and man page improvements, also to
jmc@ for reviewing the man page changes.

Fix some indentation and dead assignments.

Merge hooks into options and make each one an array option. This allows
multiple commands to be easily bound to one hook. set-hook and
show-hooks remain but they are now variants of set-option and
show-options. show-options now has a -H flag to show hooks (by default
they are not shown).

Make options_tostring allocate its result instead of using a stack
buffer (needed for something in the future).

Indicate an array option with a flag rather than a special type so that
in future will not have to be strings.

The individual -fg, -bg and -attr options have been deprecated (in
favour of -style), undocumented and hidden from show-options since
2014. Remove them, except for status-fg and status-bg.

Make array options a sparse tree instead of an array of char * and
remove the size limit.

Add a way to set individual defaults for an array option.

Add a wrapper (struct style) around styles rather than using the
grid_cell directly. There will be some non-cell members soon.

Fix filtering so it works after the change to only show windows if they
have multiple panes.

Style and spacing nits.

Memory leaks, from David CARLIER.

Handle empty options correctly.

When a flag option is used in a format, it should use the number form
not string.

If given an array option without an index either show or set all items,
and support -a for array options. Allow the separator for set to be
specified in the options table (will be used for backwards compatibility
later).

Do not reset idx, it has just been set.

options_match needs to explicitly check for user options.

Correctly handle -style options without all of a corresponding -fg/-bg/-attr.

getopt() has a struct option so just return to using options_entry.

Major tidy up and rework of options tree and set-option/show-options
commands this pushes more of the code into options.c and ties it more
closely to the options table rather than having an unnecessary
split. Also add support for array options (will be used later). Only
(intentional) user visible change is that show-options output is now
passed through vis(3) with VIS_DQ so quotes are escaped.

Append needs to go old,new not new,old...

options_get_style return const too.

Make options_get_string return const string.

Simplify appending to string options.

Some tidying and tweaks to options code.

Loads more static, except for cmd-*.c and window-*.c.

Support set -a (append) with user options, suggested by Xandor Schiefer.

I no longer use my SourceForge address so replace it.

We cannot do hooks_find and then hooks_remove because it might have come
from the parent (global) tree, instead make it remove by name like options.

While here, also tidy up a few bits of options and hooks handling (use
RB_FOREACH_SAFE, and a helper function for the free).

Spacing nits.

Sync the entire xmalloc.[ch] with the other users, but with the addition
of xrealloc, xvasprintf, xvsnprintf.