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Add arrow key mappings for tree-sitter parent/child/sibling nav (heli…
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…x-editor#1724)

* Add arrow key mappings for tree-sitter parent/child/sibling nav

This helps my use case, where I use a non-qwerty layout with a
programmable mechanical keyboard, and use a layer switching key (think
fn) to send left down up right from the traditional hjkl positions.

* Add new bindings to docs
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@EpocSquadron
EpocSquadron authored Mar 8, 2022
1 parent bde0307 commit 24352b2
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56 changes: 28 additions & 28 deletions book/src/keymap.md
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Expand Up @@ -95,34 +95,34 @@

### 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` |
| `&` | Align selection in columns | `align_selections` |
| `_` | Trim whitespace from the selection | `trim_selections` |
| `;` | Collapse selection onto a single cursor | `collapse_selection` |
| `Alt-;` | Flip selection cursor and anchor | `flip_selections` |
| `,` | Keep only the primary selection | `keep_primary_selection` |
| `Alt-,` | Remove the primary selection | `remove_primary_selection` |
| `C` | Copy selection onto the next line (Add cursor below) | `copy_selection_on_next_line` |
| `Alt-C` | Copy selection onto the previous line (Add cursor above) | `copy_selection_on_prev_line` |
| `(` | Rotate main selection backward | `rotate_selections_backward` |
| `)` | Rotate main selection forward | `rotate_selections_forward` |
| `Alt-(` | Rotate selection contents backward | `rotate_selection_contents_backward` |
| `Alt-)` | Rotate selection contents forward | `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` |
| `J` | Join lines inside selection | `join_selections` |
| `K` | Keep selections matching the regex | `keep_selections` |
| `Alt-K` | Remove selections matching the regex | `remove_selections` |
| `Ctrl-c` | Comment/uncomment the selections | `toggle_comments` |
| `Alt-k` | Expand selection to parent syntax node (**TS**) | `expand_selection` |
| `Alt-j` | Shrink syntax tree object selection (**TS**) | `shrink_selection` |
| `Alt-h` | Select previous sibling node in syntax tree (**TS**) | `select_prev_sibling` |
| `Alt-l` | Select next sibling node in syntax tree (**TS**) | `select_next_sibling` |
| 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` |
| `&` | Align selection in columns | `align_selections` |
| `_` | Trim whitespace from the selection | `trim_selections` |
| `;` | Collapse selection onto a single cursor | `collapse_selection` |
| `Alt-;` | Flip selection cursor and anchor | `flip_selections` |
| `,` | Keep only the primary selection | `keep_primary_selection` |
| `Alt-,` | Remove the primary selection | `remove_primary_selection` |
| `C` | Copy selection onto the next line (Add cursor below) | `copy_selection_on_next_line` |
| `Alt-C` | Copy selection onto the previous line (Add cursor above) | `copy_selection_on_prev_line` |
| `(` | Rotate main selection backward | `rotate_selections_backward` |
| `)` | Rotate main selection forward | `rotate_selections_forward` |
| `Alt-(` | Rotate selection contents backward | `rotate_selection_contents_backward` |
| `Alt-)` | Rotate selection contents forward | `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` |
| `J` | Join lines inside selection | `join_selections` |
| `K` | Keep selections matching the regex | `keep_selections` |
| `Alt-K` | Remove selections matching the regex | `remove_selections` |
| `Ctrl-c` | Comment/uncomment the selections | `toggle_comments` |
| `Alt-k`/`Alt-up` | Expand selection to parent syntax node (**TS**) | `expand_selection` |
| `Alt-j`/`Alt-down` | Shrink syntax tree object selection (**TS**) | `shrink_selection` |
| `Alt-h`/`Alt-left` | Select previous sibling node in syntax tree (**TS**) | `select_prev_sibling` |
| `Alt-l`/`Alt-right` | Select next sibling node in syntax tree (**TS**) | `select_next_sibling` |

### Search

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8 changes: 4 additions & 4 deletions helix-term/src/keymap.rs
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Expand Up @@ -584,10 +584,10 @@ impl Default for Keymaps {
"S" => split_selection,
";" => collapse_selection,
"A-;" => flip_selections,
"A-k" => expand_selection,
"A-j" => shrink_selection,
"A-h" => select_prev_sibling,
"A-l" => select_next_sibling,
"A-k" | "A-up" => expand_selection,
"A-j" | "A-down" => shrink_selection,
"A-h" | "A-left" => select_prev_sibling,
"A-l" | "A-right" => select_next_sibling,

"%" => select_all,
"x" => extend_line,
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