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helix-plus/book/src/keymap.md

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# Keymap
## Normal mode
### Movement
> NOTE: Unlike vim, `f`, `F`, `t` and `T` are not confined to the current line.
| Key | Description | Command |
| ----- | ----------- | ------- |
| `h`, `Left` | Move left | `move_char_left` |
| `j`, `Down` | Move down | `move_char_right` |
| `k`, `Up` | Move up | `move_line_up` |
| `l`, `Right` | Move right | `move_line_down` |
| `w` | Move next word start | `move_next_word_start` |
| `b` | Move previous word start | `move_prev_word_start` |
| `e` | Move next word end | `move_next_word_end` |
| `W` | Move next WORD start | `move_next_long_word_start` |
| `B` | Move previous WORD start | `move_prev_long_word_start` |
| `E` | Move next WORD end | `move_next_long_word_end` |
| `t` | Find 'till next char | `find_till_char` |
| `f` | Find next char | `find_next_char` |
| `T` | Find 'till previous char | `till_prev_char` |
| `F` | Find previous char | `find_prev_char` |
| `Home` | Move to the start of the line | `goto_line_start` |
| `End` | Move to the end of the line | `goto_line_end` |
| `PageUp` | Move page up | `page_up` |
| `PageDown` | Move page down | `page_down` |
| `Ctrl-u` | Move half page up | `half_page_up` |
| `Ctrl-d` | Move half page down | `half_page_down` |
| `Ctrl-i` | Jump forward on the jumplist | `jump_forward` |
| `Ctrl-o` | Jump backward on the jumplist | `jump_backward` |
| `v` | Enter [select (extend) mode](#select--extend-mode) | `select_mode` |
| `g` | Enter [goto mode](#goto-mode) | N/A |
| `m` | Enter [match mode](#match-mode) | N/A |
| `:` | Enter command mode | `command_mode` |
| `z` | Enter [view mode](#view-mode) | N/A |
| `Z` | Enter sticky [view mode](#view-mode) | N/A |
| `Ctrl-w` | Enter [window mode](#window-mode) | N/A |
| `Space` | Enter [space mode](#space-mode) | N/A |
| `K` | Show documentation for the item under the cursor | `hover` |
### Changes
| Key | Description | Command |
| ----- | ----------- | ------- |
| `r` | Replace with a character | `replace` |
| `R` | Replace with yanked text | `replace_with_yanked` |
| `~` | Switch case of the selected text | `switch_case` |
| `` ` `` | Set the selected text to lower case | `switch_to_lowercase` |
| `` Alt-` `` | Set the selected text to upper case | `switch_to_uppercase` |
| `i` | Insert before selection | `insert_mode` |
| `a` | Insert after selection (append) | `append_mode` |
| `I` | Insert at the start of the line | `prepend_to_line` |
| `A` | Insert at the end of the line | `append_to_line` |
| `o` | Open new line below selection | `open_below` |
| `O` | Open new line above selection | `open_above` |
| `u` | Undo change | `undo` |
| `U` | Redo change | `redo` |
| `y` | Yank selection | `yank` |
| `p` | Paste after selection | `paste_after` |
| `P` | Paste before selection | `paste_before` |
| `"` `<reg>` | Select a register to yank to or paste from | `select_register` |
| `>` | Indent selection | `indent` |
| `<` | Unindent selection | `unindent` |
| `=` | Format selection | `format_selections` |
| `d` | Delete selection | `delete_selection` |
| `c` | Change selection (delete and enter insert mode) | `change_selection` |
#### Shell
| Key | Description | Command |
| ------ | ----------- | ------- |
| <code>&#124;</code> | Pipe each selection through shell command, replacing with output | `shell_pipe` |
| <code>A-&#124;</code> | Pipe each selection into shell command, ignoring output | `shell_pipe_to` |
| `!` | Run shell command, inserting output before each selection | `shell_insert_output` |
| `A-!` | Run shell command, appending output after each selection | `shell_append_output` |
### Selection manipulation
| Key | Description | Command |
| ----- | ----------- | ------- |
| `s` | Select all regex matches inside selections | `select_regex` |
| `S` | Split selection into subselections on regex matches | `split_selection` |
| `Alt-s` | Split selection on newlines | `split_selection_on_newline` |
| `;` | Collapse selection onto a single cursor | `collapse_selection` |
| `Alt-;` | Flip selection cursor and anchor | `flip_selections` |
| `C` | Copy selection onto the next line | `copy_selection_on_next_line` |
| `Alt-C` | Copy selection onto the previous line | `copy_selection_on_prev_line` |
| `(` | Rotate main selection forward | `rotate_selections_backward` |
| `)` | Rotate main selection backward | `rotate_selections_forward` |
| `Alt-(` | Rotate selection contents forward | `rotate_selection_contents_backward` |
| `Alt-)` | Rotate selection contents backward | `rotate_selection_contents_forward` |
| `%` | Select entire file | `select_all` |
| `x` | Select current line, if already selected, extend to next line | `extend_line` |
| `X` | Extend selection to line bounds (line-wise selection) | `extend_to_line_bounds` |
| | Expand selection to parent syntax node TODO: pick a key | `expand_selection` |
| `J` | Join lines inside selection | `join_selections` |
| `K` | Keep selections matching the regex TODO: overlapped by hover help | `keep_selections` |
| `$` | Pipe each selection into shell command, keep selections where command returned 0 | `shell_keep_pipe` |
| `Space` | Keep only the primary selection TODO: overlapped by space mode | `keep_primary_selection` |
| `Ctrl-c` | Comment/uncomment the selections | `toggle_comments` |
### Search
> TODO: The search implementation isn't ideal yet -- we don't support searching in reverse.
| Key | Description | Command |
| ----- | ----------- | ------- |
| `/` | Search for regex pattern | `search` |
| `n` | Select next search match | `search_next` |
| `N` | Add next search match to selection | `extend_search_next` |
| `*` | Use current selection as the search pattern | `search_selection` |
### Minor modes
These sub-modes are accessible from normal mode and typically switch back to normal mode after a command.
#### View mode
View mode is intended for scrolling and manipulating the view without changing
the selection. The "sticky" variant of this mode is persistent; use the Escape
key to return to normal mode after usage (useful when you're simply looking
over text and not actively editing it).
| Key | Description | Command |
| ----- | ----------- | ------- |
| `z` , `c` | Vertically center the line | `align_view_center` |
| `t` | Align the line to the top of the screen | `align_view_top` |
| `b` | Align the line to the bottom of the screen | `align_view_bottom` |
| `m` | Align the line to the middle of the screen (horizontally) | `align_view_middle` |
| `j` | Scroll the view downwards | `scroll_down` |
| `k` | Scroll the view upwards | `scroll_up` |
| `f` | Move page down | `page_down` |
| `b` | Move page up | `page_up` |
| `d` | Move half page down | `half_page_down` |
| `u` | Move half page up | `half_page_up` |
#### Goto mode
Jumps to various locations.
> NOTE: Some of these features are only available with the LSP present.
| Key | Description | Command |
| ----- | ----------- | ------- |
| `g` | Go to the start of the file | `goto_file_start` |
| `e` | Go to the end of the file | `goto_last_line` |
| `h` | Go to the start of the line | `goto_line_start` |
| `l` | Go to the end of the line | `goto_line_end` |
| `s` | Go to first non-whitespace character of the line | `goto_first_nonwhitespace` |
| `t` | Go to the top of the screen | `goto_window_top` |
| `m` | Go to the middle of the screen | `goto_window_middle` |
| `b` | Go to the bottom of the screen | `goto_window_bottom` |
| `d` | Go to definition | `goto_definition` |
| `y` | Go to type definition | `goto_type_definition` |
| `r` | Go to references | `goto_reference` |
| `i` | Go to implementation | `goto_implementation` |
| `a` | Go to the last accessed/alternate file | `goto_last_accessed_file` |
#### Match mode
Enter this mode using `m` from normal mode. See the relavant section
in [Usage](./usage.md) for an explanation about [surround](./usage.md#surround)
and [textobject](./usage.md#textobject) usage.
| Key | Description | Command |
| ----- | ----------- | ------- |
| `m` | Goto matching bracket | `match_brackets` |
| `s` `<char>` | Surround current selection with `<char>` | `surround_add` |
| `r` `<from><to>` | Replace surround character `<from>` with `<to>` | `surround_replace` |
| `d` `<char>` | Delete surround character `<char>` | `surround_delete` |
| `a` `<object>` | Select around textobject | `select_textobject_around` |
| `i` `<object>` | Select inside textobject | `select_textobject_inner` |
TODO: Mappings for selecting syntax nodes (a superset of `[`).
#### Window mode
This layer is similar to vim keybindings as kakoune does not support window.
| Key | Description | Command |
| ----- | ------------- | ------- |
| `w`, `Ctrl-w` | Switch to next window | `rotate_view` |
| `v`, `Ctrl-v` | Vertical right split | `vsplit` |
| `h`, `Ctrl-h` | Horizontal bottom split | `hsplit` |
| `q`, `Ctrl-q` | Close current window | `wclose` |
#### Space mode
This layer is a kludge of mappings, mostly pickers.
| Key | Description | Command |
| ----- | ----------- | ------- |
| `f` | Open file picker | `file_picker` |
| `b` | Open buffer picker | `buffer_picker` |
| `s` | Open symbol picker (current document) | `symbol_picker` |
| `a` | Apply code action | `code_action` |
| `'` | Open last fuzzy picker | `last_picker` |
| `w` | Enter [window mode](#window-mode) | N/A |
| `space` | Keep primary selection TODO: it's here because space mode replaced it | `keep_primary_selection` |
| `p` | Paste system clipboard after selections | `paste_clipboard_after` |
| `P` | Paste system clipboard before selections | `paste_clipboard_before` |
| `y` | Join and yank selections to clipboard | `yank_joined_to_clipboard` |
| `Y` | Yank main selection to clipboard | `yank_main_selection_to_clipboard` |
| `R` | Replace selections by clipboard contents | `replace_selections_with_clipboard` |
#### Unimpaired
Mappings in the style of [vim-unimpaired](https://github.com/tpope/vim-unimpaired).
| Key | Description | Command |
| ----- | ----------- | ------- |
| `[d` | Go to previous diagnostic | `goto_prev_diag` |
| `]d` | Go to next diagnostic | `goto_next_diag` |
| `[D` | Go to first diagnostic in document | `goto_first_diag` |
| `]D` | Go to last diagnostic in document | `goto_last_diag` |
| `[space` | Add newline above | `add_newline_above` |
| `]space` | Add newline below | `add_newline_below` |
## Insert Mode
| Key | Description | Command |
| ----- | ----------- | ------- |
| `Escape` | Switch to normal mode | `normal_mode` |
| `Ctrl-x` | Autocomplete | `completion` |
| `Ctrl-w` | Delete previous word | `delete_word_backward` |
## Select / extend mode
I'm still pondering whether to keep this mode or not. It changes movement
commands (including goto) 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.
# Picker
Keys to use within picker. Remapping currently not supported.
| Key | Description |
| ----- | ------------- |
| `Up`, `Ctrl-p` | Previous entry |
| `Down`, `Ctrl-n` | Next entry |
| `Ctrl-space` | Filter options |
| `Enter` | Open selected |
| `Ctrl-h` | Open horizontally |
| `Ctrl-v` | Open vertically |
| `Escape`, `Ctrl-c` | Close picker |