kakoune/doc/manpages/commands.asciidoc
Frank LENORMAND 51ab59cd36 src: Implement a write! command
This commit allows "forced" writes to a write-protected file, by
attempting to temporarily grant the current user write permissions on
it. After the buffer has been written, the previous permissions are
restored if the file existed, or set to 0644 otherwise.
2017-04-20 17:13:42 +03:00

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KAKOUNE(1)
==========
NAME
----
commands - a
Primitives
----------
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).
*cd* [<directory>]::
change the current directory to *directory*, or the home directory if
unspecified
*doc* <topic>::
display documentation about a topic. The completion list displays the
available topics
*e[dit][!]* <filename> [<line> [<column>]]::
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
*w[rite][!]* [<filename>]::
write buffer to <filename> or use it's 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.
*w[rite]a[ll]*::
write all buffers that are associated to a file
*q[uit][!]*::
exit Kakoune, use quit! to force quitting even if there is some
unsaved buffers remaining
*kill*::
terminate the current session, all the clients as well as the server
*w[a]q[!]*::
write the current buffer (or all buffers when *waq* is used) and quit
*b[uffer]* <name>::
switch to buffer <name>
*b[uffer]n[ext]*::
switch to the next buffer
*b[uffer]p[rev]*::
switch to the previous buffer
*d[el]b[uf][!]* [<name>]::
delete the buffer <name>
*source* <filename>::
execute commands in <filename>
*colorscheme* <name>::
load named colorscheme
*rename-client* <name>::
set current client name
*rename-buffer* <name>::
set current buffer name
*rename-session* <name>::
set current session name
*echo* [options] <text>::
show *text* in status line, with the following *options*:
*-color* <face>:::
print the given text with *face*, most commonly *Error* or *Information*
*-markup*:::
expand the markup strings in *text* (c.f. the 'expansions' documentation page)
*-debug*:::
print the given text to the *\*debug** buffer
*nop*::
does nothing, but arguments will be evaluated (e.g. shell expansion)
*set* <scope> <name> <value>::
change the value of an option (c.f. the 'options' documentation page),
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
*unset* <scope> <name>::
unset the value of an option (c.f. the 'options' documentation page)
*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
*declare-option* [-hidden] <type> <name> [<value>]::
declare a new option, the -hidden hides the option in completion
suggestions (c.f. the 'options' documentation page)
*face* <name> <facespec>::
define a face (c.f. the 'faces' documentation page)
*exec* [<flags>] <key> ...::
execute a series of keys, as if they were hit (c.f. the 'execeval'
documentation page)
*eval* [<flags>] <command> ...::
execute commands, as if they were entered in the command prompt
(c.f. the 'execeval' documentation page)
*define-command* [<flags>] <name> <command>::
define a new command (c.f. the 'Declaring new commands' section below)
*map* <scope> <mode> <key> <keys>::
bind a list of keys to a combination (c.f. the 'mapping' documentation
page)
*unmap* <scope> <mode> <key> [<expected>]::
unbind a key combination (c.f. the 'mapping' documentation page)
*hook* [-group <group>] <scope> <hook_name> <filtering_regex> <command>::
execute a command whenever an event is triggered (c.f. the 'hooks'
documentation page)
*remove-hooks* <scope> <group>::
remove every hooks in *scope* that are part of the given *group*
(c.f. the 'hooks' documentation page)
*add-highlighter* [<flags>] <highlighter_name> <highlighter_parameters> ...::
add a highlighter to the current window (c.f. the 'highlighters'
documentation page)
*remove-highlighter* <highlighter_id>::
remove the highlighter whose id is *highlighter_id* (c.f. the
'highlighters' documentation page)
Helpers
-------
Kakoune provides some helper commands that can be used to define composite
commands:
*prompt* <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* <label1> <commands1> <label2> <commands2> ...::
display a menu using labels, the selected labels commands are
executed. menu 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* [options] <text>::
display text in an information box with the following *options*:
*-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 commands
execution, execute *on_error_commands* instead. If nothing is to be
done on error, the catch part can be omitted
*reg* <name> <content>::
set register *name* to *content*
*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}::
print some debug information in the *\*debug** buffer
Note that those commands are also available in the interactive mode, but
are not really useful in that context.
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* [flags] <command_name> <commands>::
*commands* is a string containing the commands to execute, and *flags*
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
*-shell-completion*:::
following string is a shell command which takes parameters as
positional params and output one completion candidate per 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 to define complex commands or to access Kakoune
state:
--------------------------------------------------------
def " print_selection %{ echo %sh{ ${kak_selection} } }"
--------------------------------------------------------