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fix(tui): dedupe ASCII backspace events

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This commit is contained in:
Scott Hanselman
2026-04-27 23:20:20 -07:00
parent 4e6c0965cb
commit 8f02f48acd
2 changed files with 9 additions and 1 deletions
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8
src/tui/tui.test.ts
View File

@@ -210,6 +210,14 @@ describe("createBackspaceDeduper", () => {
expect(dedupe("\x7f")).toBe("\x7f");
});
it("treats ASCII BS as backspace when it is the first event", () => {
const { dedupe, advance } = createTimedDedupe();
expect(dedupe("\x08")).toBe("\x08");
advance(1);
expect(dedupe("\x7f")).toBe("");
});
it("never suppresses non-backspace keys", () => {
const dedupe = createBackspaceDeduper();
expect(dedupe("a")).toBe("a");

2
src/tui/tui.ts
View File

@@ -209,7 +209,7 @@ export function createBackspaceDeduper(params?: { dedupeWindowMs?: number; now?:
let lastBackspaceAt = -1;
return (data: string): string => {
if (!matchesKey(data, Key.backspace)) {
if (data !== "\x08" && !matchesKey(data, Key.backspace)) {
return data;
}
const ts = now();