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feat: add editor tabs

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Valdemar Lorenzen
2026-10-12 09:34:54 +02:00
parent b72a3e206f
commit fc382529c5
11 changed files with 1241 additions and 105 deletions
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docs/configuration.md
+6 -3
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@@ -57,15 +57,17 @@ For command-capable actions, canonical Ex names derive automatically from the ac
Key notation follows [Herdr's readable style](https://herdr.dev/docs/configuration/#keybindings). Literal non-control Unicode characters are case-sensitive (`n`, `J`, `+`); named keys and modifiers are case-insensitive:
- Named keys: `esc`, `enter`, `backspace`, `delete`, `left`, `right`, `up`, `down`, `home`, `end`, `tab`, `space`.
- Modifiers: `ctrl+a` through `ctrl+z`, `alt+a` through `alt+z` (`option+` is an alias for `alt+`), `shift+a` through `shift+z`, and `shift+tab`. `shift+j` and `J` address the same key.
- Modifiers: `ctrl+a` through `ctrl+z`, `alt+a` through `alt+z` (`option+` is an alias for `alt+`), `ctrl+alt+a` through `ctrl+alt+z` (either modifier order), `shift+a` through `shift+z`, and `shift+tab`. `shift+j` and `J` address the same key.
- Named punctuation: `minus`, `comma`, `ampersand`, `plus`, `backtick`. Each addresses the same binding as its literal character.
`ctrl+i` aliases `tab`, and `ctrl+m` aliases `enter`, including inside sequences. Ctrl+h and Ctrl+j are distinct control keys, not Backspace/Enter aliases. A single modifier on an ASCII letter is supported, plus Shift+Tab. Cmd/Super, combined modifiers, other modified special keys, and Vim-style angle-bracket notation are rejected rather than silently treated as another key.
`ctrl+i` aliases `tab`, and `ctrl+m` aliases `enter`, including inside sequences. Ctrl+h and Ctrl+j are distinct control keys, not Backspace/Enter aliases. ASCII letters support a single modifier or combined Ctrl+Alt/Option; Shift+Tab is also supported. Cmd/Super, other combined modifiers, other modified special keys, and Vim-style angle-bracket notation are rejected rather than silently treated as another key.
Normal mode binds `ctrl+o` to `config.core.jump_back` and `ctrl+i`/`tab` to `config.core.jump_forward`. Insert-mode Tab inserts literal text outside snippets; inside one it moves to the next argument. Override or disable these keys with the ordinary per-mode binding interface; jump actions also appear in the command palette.
Normal mode uses literal `_` and `|` for above/below and left/right splits, and `alt+h/j/k/l` for directional pane focus. Bind the produced punctuation rather than a physical Shift combination. Close actions have no default binding; for example, `config.bind "leader x", config.core.pane.close`. See [panes and splits](editing.md#panes-and-splits) for shared-buffer and unsaved-change policies.
Normal mode binds `ctrl+option+h/l` (`ctrl+alt+h/l`) to previous/next tab. Tab actions have no default open/close binding; for example, `config.bind "leader t", config.core.tab.new` and `config.bind "leader x", config.core.tab.close`. See [tabs](editing.md#tabs) for layout preservation and close guards.
The built-in `gt`/`gb` sequences move to the first/last line in Normal and Visual; `gf` follows Markdown file links in Normal only. Bind `config.core.document_start`, `config.core.document_end`, or `config.core.follow_link` to another key or sequence to add another route. A configured/disabled `g`, a configured sequence starting with `g`, or choosing `g` as the leader overrides the built-in prefix in that binding mode.
Normal `dd` and `cc` delete/change complete rows, with leading counts. Bind `config.core.delete_line` or `config.core.change_line` to another key or sequence for another route. A configured/disabled `d` or `c`, a configured sequence starting with that key, or choosing it as the leader overrides its built-in doubled sequence. These are dedicated line actions, not general operator–motion grammar.
@@ -87,6 +89,7 @@ Normal `dd` and `cc` delete/change complete rows, with leading counts. Bind `con
| Normal, Insert, Visual, Command, Search | `diff.close` |
| Normal, Insert, Visual, Command, Search | `word_wrap.toggle` |
| Normal | `pane.split_horizontal`, `pane.split_vertical`, `pane.focus_left`, `pane.focus_down`, `pane.focus_up`, `pane.focus_right`, `pane.close`, `pane.force_close` |
| Normal | `tab.new`, `tab.previous`, `tab.next`, `tab.close`, `tab.force_close` |
| Normal | `jump_back`, `jump_forward` |
| Normal | `lsp.definition`, `lsp.diagnostics`, `lsp.hover` |
| Insert | `lsp.completion`, `snippet.next`, `snippet.previous` |
@@ -111,7 +114,7 @@ Normal `dd` and `cc` delete/change complete rows, with leading counts. Bind `con
`core.select` (`v`) and `core.select_linewise` (`V`) select characterwise and whole-row Visual shapes. Switching selectors retains endpoints; pressing the active shape's selector again cancels. Both use `config.modes.visual`; there is no separate linewise binding mode. `core.select_lines` (Visual Ctrl+l) still splits touched rows into Normal carets.
`core.save` saves the current path; `core.save_and_quit` saves the active buffer and quits only if no buffer remains dirty. `core.quit` refuses unsaved changes in any buffer. `core.edit` and `core.buffer` open prefilled Ex prompts for their required path or buffer ID; deletion actions target the current buffer. Configured `core.force_quit`, `core.buffer_force_delete`, and `core.pane.force_close` keys act immediately, without confirmation.
`core.save` saves the current path; `core.save_and_quit` saves the active buffer and quits only if no buffer remains dirty. `core.quit` refuses unsaved changes in any buffer. `core.edit` and `core.buffer` open prefilled Ex prompts for their required path or buffer ID; deletion actions target the current buffer. Configured `core.force_quit`, `core.buffer_force_delete`, `core.pane.force_close`, and `core.tab.force_close` keys act immediately, without confirmation.
## Binding overrides and failures