45c01c2109
Sometimes we get people asking why <c-c> can't be mapped. It should be mentioned in the `:help mapping` documentation, along with any other unmappable keys.
165 lines
4.6 KiB
Plaintext
165 lines
4.6 KiB
Plaintext
= Mapping
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== Description
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Creating and removing shortcuts boils down to the following commands,
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respectively:
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---------------------------------------
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map [switches] <scope> <mode> <key> <keys>
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unmap <scope> <mode> <key> [<expected>]
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---------------------------------------
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The *map* command makes *key* behave as if the *keys* sequence was typed.
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*mode* dictates in what context the mapping will be available:
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*insert*::
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insert mode
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*normal*::
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normal mode
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*prompt*::
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prompts, such as when entering a command through *:*, or a regex through */*
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*menu*::
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mode entered when a menu is displayed with the 'menu' command
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*user*::
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mode entered when the user prefix is hit (default: ',')
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*goto*::
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mode entered when the goto key is hit (default: 'g')
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*view*::
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mode entered when the view key is hit (default: 'v')
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*object*::
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mode entered when an object selection is triggered (e.g. '<a-i>')
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The context of execution of the above modes is always the current one at the
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time of execution of the mapping, except for *user* mode (always executed
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in a 'normal' context). Refer to <<modes#,`:doc modes`>> for more details.
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An optional *-docstring* switch followed by a string can be used
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to describe what the mapping does. This docstring will be used
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in autoinfo boxes.
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The *unmap* command removes a mapping of *key* in the given *scope* and
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*mode*. If *expected* is specified, the mapping is removed only if it is
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set to the same sequence of keys passed using the *expected* argument.
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For more information about the values of the *scope* parameter, refer to
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<<scopes#,`:doc scopes`>>.
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== Mapping commands
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It's common to use a normal-mode or user-mode mapping to trigger a command,
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like this:
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----
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map global user n :make-next-error<ret>
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----
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If you make a normal-mode mapping, you can prefix it with a count or a register
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name like any other normal-mode key. You can forward this information to the
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command you invoke with the `%val{count}` and `%val{register}` expansions
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(See <<expansions#`:doc expansions`>>). For example:
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----
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map global normal = ':echo Got count %val{count} and reg %val{register}<ret>'
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----
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== Mappable keys
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See <<keys#,`:doc keys`>> to discover the list of default bindings.
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For *key* and *keys* in the *map* command, the following key names can
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be used:
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*x*, *<x>*::
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Most keys, especially alphabetic keys, represent themselves.
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Keys can also be wrapped in angle-brackets for consistency
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with the non-alphabetic keys below.
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*<c-x>*::
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Holding down Control while pressing the *x* key.
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*<a-x>*::
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Holding down Alt while pressing the *x* key.
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*<s-x>*, *X*, *<X>*, *<s-X>*::
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Holding down Shift while pressing the *x* key.
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*<s-x>*, *<s-X>* and *<X>* are treated as the same key. The *s-* modifier
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only works with ASCII letters and cannot be used with other printable keys
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(non-ASCII letters, digits, punctuation) because their shift behaviour
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depends on your keyboard layout. The *s-* modifier _can_ be used with
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special keys like *<up>* and *<tab>*.
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*<c-a-x>*::
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Holding down Control and Alt while pressing the *x* key.
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*<lt>*, *<gt>*::
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The *<* and *>* characters.
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*<plus>*, *<minus>*::
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The *+* and *-* characters.
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*<ret>*::
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The Return or Enter key.
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*<space>*::
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The space bar.
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*<tab>*::
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The Tab key.
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*<backspace>*::
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The Backspace (delete to the left) key.
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*<del>*::
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The Delete (to the right) key.
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*<esc>*::
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The Escape key.
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*<up>*, *<down>*, *<left>*, *<right>*::
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*<pageup>*, *<pagedown>*, *<home>*, *<end>*::
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The usual cursor-movement keys.
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*<ins>*::
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The Insert key.
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*<F1>*, *<F2>*, ...*<F12>*::
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Function keys.
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*<semicolon>*, *<percent>*::
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The *;* and *%* characters, these keys allow reducing the amount of
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backslash escaping in scripts (for example, `exec \%` becomes `exec
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<percent>`)
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NOTE: Although Kakoune allows many key combinations to be mapped, not every
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possible combination can be triggered. For example, due to limitations in
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the way terminals handle control characters, mappings like *<c-s-a>* are
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unlikely to work in Kakoune's terminal UI.
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Some keys, like `<c-c>` and `<c-g>`, cannot be remapped because they are
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used to cancel operations. See <<keys#cancelling-operations,`:doc keys cancelling-operations`>>.
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== Default mappings
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Some mappings exist by default in the global scope:
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In normal mode:
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* `<left>` maps to `h`
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* `<right>` maps to `l`
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* `<up>` maps to `k`
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* `<down>` maps to `j`
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* `<home>` maps to `<a-h>`
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* `<end>` maps to `<a-l>`
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Shift version of those mappings exist as well
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(for example `<s-left>` maps to `H`).
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