192 lines
5.3 KiB
Plaintext
192 lines
5.3 KiB
Plaintext
kakoune(k)
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==========
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NAME
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----
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hooks - a
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Description
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-----------
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Commands can be registered to be executed when certain events arise. To
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register a hook use the following command:
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----------------------------------------------------------------------
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hook [-group <group>] <scope> <hook_name> <filtering_regex> <commands>
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----------------------------------------------------------------------
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*scope* can be one of *global*, *buffer* or *window* (See
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<<scopes#,`:doc scopes`>>).
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*command* is a string containing the commands to execute when the hook
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is called.
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For example to automatically use line numbering with .cc files, use the
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following command:
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----------------------------------------------------
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hook global WinCreate .*\.cc %{ add-highlighter number_lines }
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----------------------------------------------------
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If *group* is given, make this hook part of the named group. Groups are used
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for removing hooks with the following command:
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-----------------------
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remove-hooks <scope> <group>
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-----------------------
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A call to the command above will remove every hooks in *scope* that are part
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of the given *group*.
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Default hooks
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-------------
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*NormalIdle*::
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a certain duration has passed since last key was pressed in normal mode
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*NormalBegin*::
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entering normal mode
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*NormalEnd*::
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leaving normal mode
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*NormalKey*::
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a key is received in normal mode, the key is used for filtering
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*InsertIdle*::
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a certain duration has passed since last key was pressed in insert mode
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*InsertBegin*::
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entering insert mode
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*InsertEnd*::
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leaving insert mode
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*InsertKey*::
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a key is received in insert mode, the key is used for filtering
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*InsertChar*::
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a character is received in insert mode, the character is used for
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filtering
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*InsertDelete*::
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a character is deleted in insert mode, the character deleted by
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the main selection is used for filtering
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*InsertMove*::
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the cursor moved (without inserting) in insert mode, the key that
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triggered the move is used for filtering
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*PromptIdle*::
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a certain duration has passed since last key was pressed in prompt mode
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*WinCreate*::
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a window was created, the filtering text is the buffer name
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*WinClose*::
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a window was destroyed, the filtering text is the buffer name
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*WinResize*::
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a window resized, the filtering text is *<line>.<column>*
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*WinDisplay*::
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a window was bound a client, the filtering text is the buffer name
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*WinSetOption*::
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an option was set in a window context, the filtering text is
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*<option_name>=<new_value>*
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*BufSetOption*::
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an option was set in a buffer context, the filtering text is
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*<option_name>=<new_value>*
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*BufNewFile*::
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a buffer for a new file has been created, filename is used for
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filtering
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*BufOpenFile*::
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a buffer for an existing file has been created, filename is used
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for filtering
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*BufCreate*::
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a buffer has been created, filename is used for filtering
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*BufWritePre*::
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executed just before a buffer is written, filename is used for
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filtering
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*BufWritePost*::
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executed just after a buffer is written, filename is used for filtering
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*BufClose*::
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executed when a buffer is deleted, while it is still valid
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*BufOpenFifo*::
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executed when a buffer opens a fifo
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*BufReadFifo*::
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executed after some data has been read from a fifo and inserted in
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the buffer
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*BufCloseFifo*::
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executed when a fifo buffer closes its fifo file descriptor either
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because the buffer is being deleted,
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or because the writing end has been closed
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*RuntimeError*::
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an error was encountered while executing a user command the error
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message is used for filtering
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*KakBegin*::
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kakoune has started, this hook is called just after reading the user
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configuration files
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*KakEnd*::
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kakoune is quitting
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*FocusIn*::
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on supported clients, triggered when the client gets focused. The
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filtering text is the client name
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*FocusOut*::
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on supported clients, triggered when the client gets unfocused. The
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filtering text is the client name
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*InsertCompletionShow*::
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Triggered when the insert completion menu gets displayed
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*InsertCompletionHide*::
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Triggered when the insert completion menu gets hidden
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*RawKey*::
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Triggered whenever a key is pressed by the user, the key is
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used for filtering.
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When not specified, the filtering text is an empty string. Note that
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some hooks will not consider underlying scopes depending on what context
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they are bound to be run into, e.g. the `BufWritePost` hook is a buffer
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hook, and will not consider the `window` scope.
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While defining hook commands with a `%sh{}` block, you have access to
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the following expansions:
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* `kak_hook_param`: filtering text passed to the currently executing hook
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* `kak_hook_param_capture_N`: text captured by the hook filter regex capture N
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Disabling Hooks
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---------------
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Any normal mode command can be prefixed with `\` which will disable hook
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execution for the duration for the command (including the duration of modes
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the command could move to, so `\i` will disable hooks for the whole insert
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session).
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As autoindentation is implemented in terms of hooks, this can be used to
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disable it when pasting text.
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A less temporary alternative is to set the `disabled_hooks` option which
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accepts a regex describing which hooks won't be executed.
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For example indentation hooks can be disabled with '.*-indent'.
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Finally, hook execution can be disabled while using the `exec` or `eval`
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commands by using the `-no-hooks` switch.
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