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# Keymap
## Normal mode
### Movement
| Key | Description |
|-----|-----------|
| h | move left |
| j | move down |
| k | move up |
| l | move right |
| w | move next word start |
| b | move previous word start |
| e | move next word end |
| t | find 'till next char |
| f | find next char |
| T | find 'till previous char |
| F | find previous char |
| 0 | move to the start of the line |
| $ | move to the end of the line |
| m | Jump to matching bracket |
| PageUp | Move page up |
| PageDown | Move page down |
| ctrl-u | Move half page up |
| ctrl-d | Move half page down |
| Tab | Switch to next view |
| ctrl-i | Jump forward on the jumplist TODO: conflicts tab |
| ctrl-o | Jump backward on the jumplist |
| v | Enter select (extend) mode |
| g | Enter goto mode |
| : | Enter command mode |
| z | Enter view mode |
| space | Enter space mode |
| K | Show documentation for the item under the cursor |
### Changes
| Key | Description |
|-----|-----------|
| r | replace (single character change) |
| i | Insert before selection |
| a | Insert after selection (append) |
| I | Insert at the start of the line |
| A | Insert at the end of the line |
| o | Open new line below selection |
| o | Open new line above selection |
| u | Undo change |
| U | Redo change |
| y | Yank selection |
| p | Paste after selection |
| P | Paste before selection |
| > | Indent selection |
| < | Unindent selection |
| = | Format selection |
| d | Delete selection |
| c | Change selection (delete and enter insert mode) |
### Selection manipulation
| Key | Description |
|-----|-----------|
| s | Select all regex matches inside selections |
| S | Split selection into subselections on regex matches |
| alt-s | Split selection on newlines |
| ; | Collapse selection onto a single cursor |
| alt-; | Flip selection cursor and anchor |
| % | Select entire file |
| x | Select current line |
| X | Extend to next line |
| [ | Expand selection to parent syntax node TODO: pick a key |
| J | join lines inside selection |
| K | keep selections matching the regex TODO: overlapped by hover help |
| space | keep only the primary selection TODO: overlapped by space mode |
| ctrl-c | Comment/uncomment the selections |
### Search
> TODO: The search implementation isn't ideal yet -- we don't support searching
in reverse, or searching via smartcase.
| Key | Description |
|-----|-----------|
| / | Search for regex pattern |
| n | Select next search match |
| N | Add next search match to selection |
| * | Use current selection as the search pattern |
## Select / extend mode
I'm still pondering whether to keep this mode or not. It changes movement
commands to extend the existing selection instead of replacing it.
> NOTE: It's a bit confusing at the moment because extend hasn't been
> implemented for all movement commands yet.
## View mode
View mode is intended for scrolling and manipulating the view without changing
the selection.
| Key | Description |
|-----|-----------|
| z , c | Vertically center the line |
| t | Align the line to the top of the screen |
| b | Align the line to the bottom of the screen |
| m | Align the line to the middle of the screen (horizontally) |
| j | Scroll the view downwards |
| k | Scroll the view upwards |
## Goto mode
Jumps to various locations.
> NOTE: Some of these features are only available with the LSP present.
| Key | Description |
|-----|-----------|
| g | Go to the start of the file |
| e | Go to the end of the file |
| e | Go to definition |
| t | Go to type definition |
| r | Go to references |
| i | Go to implementation |
## Object mode
TODO: Mappings for selecting syntax nodes (a superset of `[`).
## Space mode
This layer is a kludge of mappings I had under leader key in neovim.
| Key | Description |
|-----|-----------|
| f | Open file picker |
| b | Open buffer picker |
| v | Open a new vertical split into the current file |
| w | Save changes to file |
| c | Close the current split |
| space | Keep primary selection TODO: it's here because space mode replaced it |
|
