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kakoune/doc/pages/commands.asciidoc
Maxime Coste 57baad4afd Make FaceRegistry scoped
set-face now takes a scope argument, and faces can be overridden on
a buffer or window basis.

colorscheme apply on global scope, which should be good enough for
now.

Fixes #1411
2018-04-07 16:27:50 +10:00

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= Commands
Some commands take an exclamation mark (*!*), which can be used to force
the execution of the command (i.e. to quit a modified buffer, the
command *q!* has to be used). Aliases are mentionned below each commands.
*doc* <topic>::
*alias* help +
display documentation about a topic. The completion list displays the
available topics
== Files and Buffers
*change-directory* [<directory>]::
*alias* cd +
change the current directory to *directory*, or the home directory if
unspecified
*edit[!]* <filename> [<line> [<column>]]::
*alias* e +
open buffer on file, go to given line and column. If file is already
opened, just switch to this file. Use edit! to force reloading
*write[!]* [<filename>]::
*alias* w +
write buffer to <filename> or use its name if filename is not
given. If the file is write-protected, its permissions are temporarily
changed to allow saving the buffer and restored afterwards when
the write! command is used.
*write-all*::
*alias* wa +
write all buffers that are associated to a file
*quit!* [<exit status>]::
*alias* q +
exit Kakoune, use quit! to force quitting even if there is some
unsaved buffers remaining. If specified, the client exit status
will be set to <exit status>
*write-all-quit* [<exit status>]::
*alias* waq +
write all buffers and quit. If specified, the client exit status
will be set to <exit status>
*buffer* <name>::
*alias* b +
switch to buffer <name>
*buffer-next*::
*alias* bn +
switch to the next buffer
*buffer-prev*::
*alias* bp +
switch to the previous buffer
*delete-buffer[!]* [<name>]::
*alias* db +
delete the buffer <name>
*rename-buffer* <name>::
set current buffer name
*source* <filename>::
execute commands in <filename>
== Clients and Sessions
*rename-client* <name>::
*alias* nc +
set current client name
*rename-session* <name>::
set current session name
*kill[!]*::
terminate the current session, all the clients as well as the server
== Options
*declare-option* [<switches>] <type> <name> [<value>]::
*alias* decl +
declare a new option, the -hidden switch hides the option in completion
suggestions (See <<options#declare-option,`:doc options declare-option`>>)
*set-option* [<switches>] <scope> <name> <value>::
*alias* set +
change the value of an option
note that the name of a particular buffer can be specified when the
target *scope* is 'buffer', e.g. set buffer=/path/to/buffer foo "bar";
the scope can also take the `current` special value, which will automatically
point to the narrowest scope available in the current context
(See <<options#set-option,`:doc options set-option`>>)
*unset-option* <scope> <name>::
*alias* unset +
unset the value of an option (See <<options#unset-option,`:doc options unset-option`>>)
*update-option* <scope> <name>::
update the value of an option if its type supports that operation
(See <<options#update-option,`:doc options update-option`>>)
== Commands and Keys
*define-command* [<switches>] <name> <command>::
*alias* def +
define a new command (See <<declaring-new-commands,Declaring new commands>>)
*alias* <scope> <name> <command>::
define a new alias, within the context of a scope
*unalias* <scope> <name> [<command>]::
remove an alias if its current value is the same as the one passed
as an optional parameter, remove it unconditionally otherwise
*evaluate-commands* [<switches>] <command> ...::
*alias* eval +
evaluate commands, as if they were entered in the command prompt
(See <<execeval#,`:doc execeval`>>)
*execute-keys* [<switches>] <key> ...::
*alias* exec +
execute a series of keys, as if they were hit (See <<execeval#,`:doc execeval`>>)
*map* [<switches>] <scope> <mode> <key> <keys>::
bind a list of keys to a combination (See <<mapping#,`:doc mapping`>>)
*unmap* <scope> <mode> <key> [<expected>]::
unbind a key combination (See <<mapping#,`:doc mapping`>>)
*declare-user-mode* <name>::
declare a new user keymap mode
*enter-user-mode* [<switches>] <name>::
enable <name> keymap mode for next key
*-lock*:::
stay in mode until `<esc>` is pressed
== Hooks
*hook* [-group <group>] <scope> <hook_name> <filtering_regex> <command>::
execute a command whenever an event is triggered
(See <<hooks#,`:doc hooks`>>)
*remove-hooks* <scope> <group>::
*alias* rmhooks +
remove every hooks in *scope* that are part of the given *group*
(See <<hooks#,`:doc hooks`>>)
== Display
*echo* [<switches>] <text>::
show *text* in status line, with the following *switches*:
*-markup*:::
expand the markup strings in *text* (See
<<expansions#markup-strings,`:doc expansions markup-strings`>>)
*-debug*:::
print the given text to the *\*debug** buffer
*set-face* <scope> <name> <facespec>::
*alias* face +
define a face in *scope* (See <<faces#,`:doc faces`>>)
*unset-face* <scope> <name>::
Remove a face definition from *scope* (See <<faces#,`:doc faces`>>)
*colorscheme* <name>::
load named colorscheme
*add-highlighter* <highlighter_name> <highlighter_parameters> ...::
*alias* addhl +
add a highlighter to the current window
(See <<highlighters#,`:doc highlighters`>>)
*remove-highlighter* <highlighter_id>::
*alias* rmhl +
remove the highlighter whose id is *highlighter_id*
(See <<highlighters#,`:doc highlighters`>>)
== Helpers
Kakoune provides some helper commands that can be used to define composite
commands in scripts. They are also available in the interactive mode,
but not really useful in that context.
*prompt* [<switches>] <prompt> <command>::
prompt the user for a string, when the user validates, executes the
command. The entered text is available in the `text` value accessible
through `$kak_text` in shells or `%val{text}` in commands.
The *-init <str>* switch allows setting initial content, the
*-password* switch hides the entered text and clears the register
after command execution.
The *-on-change* and *-on-abort* switches, followed by a command
will have this command executed whenever the prompt content changes
or the prompt is aborted, respectively.
*on-key* <command>::
wait for next key from user, then execute <command>, the key is
available through the `key` value, accessible through `$kak_key`
in shells, or `%val{key}` in commands.
*menu* [<switches>] <label1> <commands1> <label2> <commands2> ...::
display a menu using labels, the selected labels commands are
executed. The *menu* command can take an *-auto-single* argument, to automatically
run commands when only one choice is provided, and a *-select-cmds*
argument, in which case menu takes three argument per item, the
last one being a command to execute when the item is selected (but
not validated)
*info* [<switches>] <text>::
display text in an information box with the following *switches*:
*-anchor* <line>.<column>:::
print the text at the given coordinates
*-placement* {above,below}:::
set the placement relative to the anchor
*-title* <text>:::
set the title of the message box
*try* <commands> catch <on_error_commands>::
prevent an error in *commands* from aborting the whole command
execution, execute *on_error_commands* instead. If nothing is to be
done on error, the catch part can be omitted
*nop*::
does nothing, but arguments will be evaluated (e.g. shell expansion)
*fail* <text>::
raise an error, uses <text> as its description
*set-register* <name> <content>::
*alias* reg +
set register *name* to *content* (See <<registers#,`:doc registers`>>)
*select* <anchor_line>.<anchor_column>,<cursor_line>.<cursor_column>:...::
replace the current selections with the one described in the argument
*debug* {info,buffers,options,memory,shared-strings,profile-hash-maps,faces,mappings}::
print some debug information in the *\*debug** buffer
== Multiple commands
Commands (c.f. previous sections) can be chained, by being separated either
by new lines or by semicolons, as such a semicolon must be escaped with a
backslash (\;) to be considered as a literal semicolon argument
== Declaring new commands
New commands can be defined using the *define-command* command:
*define-command* [<switches>] <command_name> <commands>::
*commands* is a string containing the commands to execute, and *switches*
can be any combination of the following parameters:
*-params* <num>:::
the command accepts a *num* parameter, which can be either a number,
or of the form <min>..<max>, with both <min> and <max> omittable
*-file-completion*:::
try file completion on any parameter passed to this command
*-client-completion*:::
try client name completion on any parameter passed to this command
*-buffer-completion*:::
try buffer name completion on any parameter passed to this command
*-command-completion*:::
try command completion on any parameter passed to this command
*-shell-completion*:::
following string is a shell command which takes parameters as
positional params and output one completion candidate per line.
The provided shell command will run after each keypress
during the executing of the shell command, the following env vars are
available:
- *kak_token_to_complete*::::
Index of the token being completed in the command line.
- *kak_pos_in_token*::::
Position of the cursor inside the token being completed, in bytes
from token start.
*-shell-candidates*:::
following string is a shell command which takes parameters as
positional params and output one completion candidate per line.
The provided shell command will run once at the beginning of each
completion session, candidates are cached and then used by kakoune
internal fuzzy engine
during the executing of the shell command, the following env vars are
available:
- *kak_token_to_complete*::::
Index of the token being completed in the command line.
*-allow-override*:::
allow the new command to replace an existing one with the same name
*-hidden*:::
do not show the command in command name completions
*-docstring*:::
define the documentation string for the command
Using shell expansion allows defining complex commands or accessing
Kakoune's state:
--------------------------------------------------------
def " print_selection %{ echo %sh{ ${kak_selection} } }"
--------------------------------------------------------