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< h2 id = "key-remapping" > < a class = "header" href = "#key-remapping" > Key remapping< / a > < / h2 >
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< p > Helix currently supports one-way key remapping through a simple TOML configuration
file. (More powerful solutions such as rebinding via commands will be
available in the future).< / p >
< p > To remap keys, create a < code > config.toml< / code > file in your < code > helix< / code > configuration
directory (default < code > ~/.config/helix< / code > on Linux systems) with a structure like
this:< / p >
< pre > < code class = "language-toml" > # At most one section each of 'keys.normal', 'keys.insert' and 'keys.select'
[keys.normal]
C-s = ":w" # Maps Ctrl-s to the typable command :w which is an alias for :write (save file)
C-o = ":open ~/.config/helix/config.toml" # Maps Ctrl-o to opening of the helix config file
a = "move_char_left" # Maps the 'a' key to the move_char_left command
w = "move_line_up" # Maps the 'w' key move_line_up
"C-S-esc" = "extend_line" # Maps Ctrl-Shift-Escape to extend_line
g = { a = "code_action" } # Maps `ga` to show possible code actions
"ret" = ["open_below", "normal_mode"] # Maps the enter key to open_below then re-enter normal mode
[keys.insert]
"A-x" = "normal_mode" # Maps Alt-X to enter normal mode
j = { k = "normal_mode" } # Maps `jk` to exit insert mode
< / code > < / pre >
< h2 id = "minor-modes" > < a class = "header" href = "#minor-modes" > Minor modes< / a > < / h2 >
< p > Minor modes are accessed by pressing a key (usually from normal mode), giving access to dedicated bindings. Bindings
can be modified or added by nesting definitions.< / p >
< pre > < code class = "language-toml" > [keys.insert.j]
k = "normal_mode" # Maps `jk` to exit insert mode
[keys.normal.g]
a = "code_action" # Maps `ga` to show possible code actions
# invert `j` and `k` in view mode
[keys.normal.z]
j = "scroll_up"
k = "scroll_down"
# create a new minor mode bound to `+`
[keys.normal."+"]
m = ":run-shell-command make"
c = ":run-shell-command cargo build"
t = ":run-shell-command cargo test"
< / code > < / pre >
< h2 id = "special-keys-and-modifiers" > < a class = "header" href = "#special-keys-and-modifiers" > Special keys and modifiers< / a > < / h2 >
< p > Ctrl, Shift and Alt modifiers are encoded respectively with the prefixes
< code > C-< / code > , < code > S-< / code > and < code > A-< / code > . Special keys are encoded as follows:< / p >
< div class = "table-wrapper" > < table > < thead > < tr > < th > Key name< / th > < th > Representation< / th > < / tr > < / thead > < tbody >
< tr > < td > Backspace< / td > < td > < code > "backspace"< / code > < / td > < / tr >
< tr > < td > Space< / td > < td > < code > "space"< / code > < / td > < / tr >
< tr > < td > Return/Enter< / td > < td > < code > "ret"< / code > < / td > < / tr >
< tr > < td > -< / td > < td > < code > "minus"< / code > < / td > < / tr >
< tr > < td > Left< / td > < td > < code > "left"< / code > < / td > < / tr >
< tr > < td > Right< / td > < td > < code > "right"< / code > < / td > < / tr >
< tr > < td > Up< / td > < td > < code > "up"< / code > < / td > < / tr >
< tr > < td > Down< / td > < td > < code > "down"< / code > < / td > < / tr >
< tr > < td > Home< / td > < td > < code > "home"< / code > < / td > < / tr >
< tr > < td > End< / td > < td > < code > "end"< / code > < / td > < / tr >
< tr > < td > Page Up< / td > < td > < code > "pageup"< / code > < / td > < / tr >
< tr > < td > Page Down< / td > < td > < code > "pagedown"< / code > < / td > < / tr >
< tr > < td > Tab< / td > < td > < code > "tab"< / code > < / td > < / tr >
< tr > < td > Delete< / td > < td > < code > "del"< / code > < / td > < / tr >
< tr > < td > Insert< / td > < td > < code > "ins"< / code > < / td > < / tr >
< tr > < td > Null< / td > < td > < code > "null"< / code > < / td > < / tr >
< tr > < td > Escape< / td > < td > < code > "esc"< / code > < / td > < / tr >
< / tbody > < / table >
< / div >
< p > Keys can be disabled by binding them to the < code > no_op< / code > command.< / p >
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< h2 id = "commands" > < a class = "header" href = "#commands" > Commands< / a > < / h2 >
< p > There are three kinds of commands that can be used in keymaps:< / p >
< ul >
< li > Static commands: commands like < code > move_char_right< / code > which are usually bound to
keys and used for movement and editing. A list of static commands is
available in the < a href = "./keymap.html" > Keymap< / a > documentation and in the source code
in < a href = "https://github.com/helix-editor/helix/blob/master/helix-term/src/commands.rs" > < code > helix-term/src/commands.rs< / code > < / a >
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at the invocation of < code > static_commands!< / code > macro.< / li >
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< li > Typable commands: commands that can be executed from command mode (< code > :< / code > ), for
example < code > :write!< / code > . See the < a href = "./commands.html" > Commands< / a > documentation for a
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list of available typeable commands or the < code > TypableCommandList< / code > declaration in
the source code at < a href = "https://github.com/helix-editor/helix/blob/master/helix-term/src/commands/typed.rs" > < code > helix-term/src/commands/typed.rs< / code > < / a > .< / li >
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< li > Macros: sequences of keys that are executed in order. These keybindings
start with < code > @< / code > and then list any number of keys to be executed. For example
< code > @miw< / code > can be used to select the surrounding word. For now, macro keybindings
are not allowed in keybinding sequences due to limitations in the way that
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command sequences are executed. Modifier keys (e.g. Alt+o) can be used
like < code > "< A-o> "< / code > , e.g. < code > "@miw< A-o> "< / code > < / li >
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