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< h1 id = "installation" > < a class = "header" href = "#installation" > Installation< / a > < / h1 >
< p > We provide pre-built binaries on the < a href = "https://github.com/helix-editor/helix/releases" > GitHub Releases page< / a > .< / p >
< h2 id = "osx" > < a class = "header" href = "#osx" > OSX< / a > < / h2 >
< p > TODO: brew tap< / p >
< pre > < code > $ brew tap helix-editor/helix
$ brew install helix
< / code > < / pre >
< h2 id = "linux" > < a class = "header" href = "#linux" > Linux< / a > < / h2 >
< h3 id = "nixos" > < a class = "header" href = "#nixos" > NixOS< / a > < / h3 >
< p > A < a href = "https://nixos.wiki/wiki/Flakes" > flake< / a > containing the package is available in
the project root. The flake can also be used to spin up a reproducible development
shell for working on Helix.< / p >
< h3 id = "arch-linux" > < a class = "header" href = "#arch-linux" > Arch Linux< / a > < / h3 >
< p > A binary package is available on AUR as < a href = "https://aur.archlinux.org/packages/helix-bin/" > helix-bin< / a > .< / p >
< h2 id = "build-from-source" > < a class = "header" href = "#build-from-source" > Build from source< / a > < / h2 >
< pre > < code > git clone --recurse-submodules --shallow-submodules -j8 https://github.com/helix-editor/helix
cd helix
cargo install --path helix-term
< / code > < / pre >
< p > This will install the < code > hx< / code > binary to < code > $HOME/.cargo/bin< / code > .< / p >
< p > Now copy the < code > runtime/< / code > directory somewhere. Helix will by default look for the
runtime inside the same folder as the executable, but that can be overriden via
the < code > HELIX_RUNTIME< / code > environment variable.< / p >
< div id = "chapter_begin" style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "usage" > < a class = "header" href = "#usage" > Usage< / a > < / h1 >
< div id = "chapter_begin" style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "configuration" > < a class = "header" href = "#configuration" > Configuration< / a > < / h1 >
< div id = "chapter_begin" style = "break-before: page; page-break-before: always;" > < / div > < h1 id = "keymap" > < a class = "header" href = "#keymap" > Keymap< / a > < / h1 >
< h2 id = "normal-mode" > < a class = "header" href = "#normal-mode" > Normal mode< / a > < / h2 >
< h3 id = "movement" > < a class = "header" href = "#movement" > Movement< / a > < / h3 >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < / tr > < / thead > < tbody >
< tr > < td > h< / td > < td > move left< / td > < / tr >
< tr > < td > j< / td > < td > move down< / td > < / tr >
< tr > < td > k< / td > < td > move up< / td > < / tr >
< tr > < td > l< / td > < td > move right< / td > < / tr >
< tr > < td > w< / td > < td > move next word start< / td > < / tr >
< tr > < td > b< / td > < td > move previous word start< / td > < / tr >
< tr > < td > e< / td > < td > move next word end< / td > < / tr >
< tr > < td > t< / td > < td > find 'till next char< / td > < / tr >
< tr > < td > f< / td > < td > find next char< / td > < / tr >
< tr > < td > T< / td > < td > find 'till previous char< / td > < / tr >
< tr > < td > F< / td > < td > find previous char< / td > < / tr >
< tr > < td > ^< / td > < td > move to the start of the line< / td > < / tr >
< tr > < td > $< / td > < td > move to the end of the line< / td > < / tr >
< tr > < td > m< / td > < td > Jump to matching bracket< / td > < / tr >
< tr > < td > PageUp< / td > < td > Move page up< / td > < / tr >
< tr > < td > PageDown< / td > < td > Move page down< / td > < / tr >
< tr > < td > ctrl-u< / td > < td > Move half page up< / td > < / tr >
< tr > < td > ctrl-d< / td > < td > Move half page down< / td > < / tr >
< tr > < td > Tab< / td > < td > Switch to next view< / td > < / tr >
< tr > < td > ctrl-i< / td > < td > Jump forward on the jumplist TODO: conflicts tab< / td > < / tr >
< tr > < td > ctrl-o< / td > < td > Jump backward on the jumplist< / td > < / tr >
< tr > < td > v< / td > < td > Enter select (extend) mode< / td > < / tr >
< tr > < td > g< / td > < td > Enter goto mode< / td > < / tr >
< tr > < td > :< / td > < td > Enter command mode< / td > < / tr >
< tr > < td > z< / td > < td > Enter view mode< / td > < / tr >
< tr > < td > space< / td > < td > Enter space mode< / td > < / tr >
< tr > < td > K< / td > < td > Show documentation for the item under the cursor< / td > < / tr >
< / tbody > < / table >
< h3 id = "changes" > < a class = "header" href = "#changes" > Changes< / a > < / h3 >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < / tr > < / thead > < tbody >
< tr > < td > r< / td > < td > replace (single character change)< / td > < / tr >
< tr > < td > i< / td > < td > Insert before selection< / td > < / tr >
< tr > < td > a< / td > < td > Insert after selection (append)< / td > < / tr >
< tr > < td > I< / td > < td > Insert at the start of the line< / td > < / tr >
< tr > < td > A< / td > < td > Insert at the end of the line< / td > < / tr >
< tr > < td > o< / td > < td > Open new line below selection< / td > < / tr >
< tr > < td > o< / td > < td > Open new line above selection< / td > < / tr >
< tr > < td > u< / td > < td > Undo change< / td > < / tr >
< tr > < td > U< / td > < td > Redo change< / td > < / tr >
< tr > < td > y< / td > < td > Yank selection< / td > < / tr >
< tr > < td > p< / td > < td > Paste after selection< / td > < / tr >
< tr > < td > P< / td > < td > Paste before selection< / td > < / tr >
< tr > < td > > < / td > < td > Indent selection< / td > < / tr >
< tr > < td > < < / td > < td > Unindent selection< / td > < / tr >
< tr > < td > =< / td > < td > Format selection< / td > < / tr >
< tr > < td > d< / td > < td > Delete selection< / td > < / tr >
< tr > < td > c< / td > < td > Change selection (delete and enter insert mode)< / td > < / tr >
< / tbody > < / table >
< h3 id = "selection-manipulation" > < a class = "header" href = "#selection-manipulation" > Selection manipulation< / a > < / h3 >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < / tr > < / thead > < tbody >
< tr > < td > s< / td > < td > Select all regex matches inside selections< / td > < / tr >
< tr > < td > S< / td > < td > Split selection into subselections on regex matches< / td > < / tr >
< tr > < td > alt-s< / td > < td > Split selection on newlines< / td > < / tr >
< tr > < td > ;< / td > < td > Collapse selection onto a single cursor< / td > < / tr >
< tr > < td > alt-;< / td > < td > Flip selection cursor and anchor< / td > < / tr >
< tr > < td > %< / td > < td > Select entire file< / td > < / tr >
< tr > < td > x< / td > < td > Select current line< / td > < / tr >
< tr > < td > X< / td > < td > Extend to next line< / td > < / tr >
< tr > < td > [< / td > < td > Expand selection to parent syntax node TODO: pick a key< / td > < / tr >
< tr > < td > J< / td > < td > join lines inside selection< / td > < / tr >
< tr > < td > K< / td > < td > keep selections matching the regex TODO: overlapped by hover help< / td > < / tr >
< tr > < td > space< / td > < td > keep only the primary selection TODO: overlapped by space mode< / td > < / tr >
< tr > < td > ctrl-c< / td > < td > Comment/uncomment the selections< / td > < / tr >
< / tbody > < / table >
< h3 id = "search" > < a class = "header" href = "#search" > Search< / a > < / h3 >
< blockquote >
< p > TODO: The search implementation isn't ideal yet -- we don't support searching
in reverse, or searching via smartcase.< / p >
< / blockquote >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < / tr > < / thead > < tbody >
< tr > < td > /< / td > < td > Search for regex pattern< / td > < / tr >
< tr > < td > n< / td > < td > Select next search match< / td > < / tr >
< tr > < td > N< / td > < td > Add next search match to selection< / td > < / tr >
< tr > < td > *< / td > < td > Use current selection as the search pattern< / td > < / tr >
< / tbody > < / table >
< h2 id = "select--extend-mode" > < a class = "header" href = "#select--extend-mode" > Select / extend mode< / a > < / h2 >
< p > I'm still pondering whether to keep this mode or not. It changes movement
commands to extend the existing selection instead of replacing it.< / p >
< blockquote >
< p > NOTE: It's a bit confusing at the moment because extend hasn't been
implemented for all movement commands yet.< / p >
< / blockquote >
< h2 id = "view-mode" > < a class = "header" href = "#view-mode" > View mode< / a > < / h2 >
< p > View mode is intended for scrolling and manipulating the view without changing
the selection.< / p >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < / tr > < / thead > < tbody >
< tr > < td > z , c< / td > < td > Vertically center the line< / td > < / tr >
< tr > < td > t< / td > < td > Align the line to the top of the screen< / td > < / tr >
< tr > < td > b< / td > < td > Align the line to the bottom of the screen< / td > < / tr >
< tr > < td > m< / td > < td > Align the line to the middle of the screen (horizontally)< / td > < / tr >
< tr > < td > j< / td > < td > Scroll the view downwards< / td > < / tr >
< tr > < td > k< / td > < td > Scroll the view upwards< / td > < / tr >
< / tbody > < / table >
< h2 id = "goto-mode" > < a class = "header" href = "#goto-mode" > Goto mode< / a > < / h2 >
< p > Jumps to various locations.< / p >
< blockquote >
< p > NOTE: Some of these features are only available with the LSP present.< / p >
< / blockquote >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < / tr > < / thead > < tbody >
< tr > < td > g< / td > < td > Go to the start of the file< / td > < / tr >
< tr > < td > e< / td > < td > Go to the end of the file< / td > < / tr >
< tr > < td > e< / td > < td > Go to definition< / td > < / tr >
< tr > < td > t< / td > < td > Go to type definition< / td > < / tr >
< tr > < td > r< / td > < td > Go to references< / td > < / tr >
< tr > < td > i< / td > < td > Go to implementation< / td > < / tr >
< / tbody > < / table >
< h2 id = "object-mode" > < a class = "header" href = "#object-mode" > Object mode< / a > < / h2 >
< p > TODO: Mappings for selecting syntax nodes (a superset of < code > [< / code > ).< / p >
< h2 id = "space-mode" > < a class = "header" href = "#space-mode" > Space mode< / a > < / h2 >
< p > This layer is a kludge of mappings I had under leader key in neovim.< / p >
< table > < thead > < tr > < th > Key< / th > < th > Description< / th > < / tr > < / thead > < tbody >
< tr > < td > f< / td > < td > Open file picker< / td > < / tr >
< tr > < td > b< / td > < td > Open buffer picker< / td > < / tr >
< tr > < td > v< / td > < td > Open a new vertical split into the current file< / td > < / tr >
< tr > < td > w< / td > < td > Save changes to file< / td > < / tr >
< tr > < td > c< / td > < td > Close the current split< / td > < / tr >
< tr > < td > space< / td > < td > Keep primary selection TODO: it's here because space mode replaced it< / td > < / tr >
< / tbody > < / table >
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