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fix(coding-agent): strip private-parameter CSI sequences in stripAnsi

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triagent 2026-10-24 16:40:46 +00:00
parent f321e5bdd2
commit 37436b1266
2 changed files with 11 additions and 2 deletions
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5
packages/coding-agent/src/utils/ansi.ts
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@ -32,8 +32,9 @@ const ST = "(?:\\u0007|\\u001B\\u005C|\\u009C)";
// OSC sequences: ESC ] ... ST
const OSC_START = "\\u001B\\]";
// CSI and related: ESC/C1, optional intermediates, optional params (supports ; and :), then final byte
const CSI_START = "[\\u001B\\u009B][[\\]()#;?]*(?:\\d{1,4}(?:[;:]\\d{0,4})*)?";
// CSI and related: ESC/C1, optional intermediates, optional private prefix (<, =, >), optional params
// (supports ; and :), then final byte
const CSI_START = "[\\u001B\\u009B][[\\]()#;?]*[<=>]?(?:\\d{1,4}(?:[;:]\\d{0,4})*)?";
const CSI_FINAL = "[\\dA-PR-TZcf-nq-uy=><~]";
// Complete sequences. OSC is non-greedy until the first ST.

8
packages/coding-agent/test/ansi-utils.test.ts
View file

@ -107,4 +107,12 @@ describe("stripAnsi", () => {
const input = "a\x1b[31mred\x1b[0m\x1b]8;;https://example.com\x07link\x1b]8;;\x07z";
expect(stripAnsi(input)).toBe("aredlinkz");
});
it("strips private-parameter CSI sequences with their parameters", () => {
expect(stripAnsi("\x1b[<35;59;1Mstep 1")).toBe("step 1");
expect(stripAnsi("a\x1b[<0;10;20mb")).toBe("ab");
expect(stripAnsi("a\x1b[>0;276;0cb")).toBe("ab");
expect(stripAnsi("a\x1b[=5hb")).toBe("ab");
expect(stripAnsi("a\x9b<35;59;1Mb")).toBe("ab");
});
});