T-206. A pure motion/edit engine (vim_edit_ops.dart) operates on
(text, selection, register) and returns the new value plus an
insert-mode request — hjkl/w/b/e/0/^/$/gg/G motions, x/dd/D/dw/yy/p/P/
cc/cw/o/O edits, i/a/I/A insert entries, and d/y/c over a visual range.
It's headless, so the whole grammar is unit-tested in isolation.
The editor wires it in: in normal/visual mode bare keys feed the
SequenceMatcher (modified chords bubble to the global handler for the
palette etc.), a fired editor.vim.* intent applies the op count times
and persists through the existing edit path, and vim.mode.* intents go
to the registry. Crucially the EditableText is read-only in command
mode — on desktop printable keys arrive over the TextInput channel
separately from KeyEvents, so swallowing the key event alone wouldn't
stop them typing; read-only does, while our edits still drive the
controller directly.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.8
caca816233