alexion/dev
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

chore(vendor): import pi 1.3.0

Browse Source 
Imported as a linear vendor commit so forge rebases do not replay the upstream root tree.

git-subtree-dir: third_party/pi

git-subtree-split: 71023aec1546d6d677a65669c5665c0927ce0dd0
This commit is contained in:
alexion
2026-10-15 17:58:48 -04:00
parent 719370c8f7
commit 6081e3e325
1743 changed files with 205460 additions and 131705 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
third_party/pi/packages/coding-agent/src/utils/ansi.ts vendored
View File

@@ -26,23 +26,45 @@
* SOFTWARE.
*/
function ansiRegex({ onlyFirst = false }: { onlyFirst?: boolean } = {}): RegExp {
// Valid string terminator sequences are BEL, ESC\, and 0x9c
const ST = "(?:\\u0007|\\u001B\\u005C|\\u009C)";
// Valid string terminator sequences are BEL, ESC\, and 0x9c
const ST = "(?:\\u0007|\\u001B\\u005C|\\u009C)";
// OSC sequences only: ESC ] ... ST (non-greedy until the first ST)
const osc = `(?:\\u001B\\][\\s\\S]*?${ST})`;
// OSC sequences: ESC ] ... ST
const OSC_START = "\\u001B\\]";
// CSI and related: ESC/C1, optional intermediates, optional params (supports ; and :) then final byte
const csi = "[\\u001B\\u009B][[\\]()#;?]*(?:\\d{1,4}(?:[;:]\\d{0,4})*)?[\\dA-PR-TZcf-nq-uy=><~]";
// CSI and related: ESC/C1, optional intermediates, optional params (supports ; and :), then final byte
const CSI_START = "[\\u001B\\u009B][[\\]()#;?]*(?:\\d{1,4}(?:[;:]\\d{0,4})*)?";
const CSI_FINAL = "[\\dA-PR-TZcf-nq-uy=><~]";
const pattern = `${osc}|${csi}`;
// Complete sequences. OSC is non-greedy until the first ST.
const ansiRegex = new RegExp(`(?:${OSC_START}[\\s\\S]*?${ST})|${CSI_START}${CSI_FINAL}`, "g");
return new RegExp(pattern, onlyFirst ? undefined : "g");
// Unfinished sequence at the end of the text: OSC without its ST (a trailing ESC may start ESC\),
// or CSI without its final byte.
const unfinishedAnsiAtEndRegex = new RegExp(
`(?:${OSC_START}(?:[^\\u0007\\u009C\\u001B]|\\u001B(?!\\\\))*|${CSI_START})$`,
);
// Longest unfinished sequence held back while streaming. Longer ones are processed as-is.
const MAX_PENDING_ANSI_LENGTH = 256;
/**
* Split streamed text into a part that is safe to pass to stripAnsi now and a trailing
* unfinished escape sequence that should be prepended to the next chunk.
*/
export function splitIncompleteAnsiSuffix(value: string): { complete: string; pending: string } {
if (!value.includes("\u001B") && !value.includes("\u009B")) {
return { complete: value, pending: "" };
}
const windowStart = Math.max(0, value.length - MAX_PENDING_ANSI_LENGTH);
const match = unfinishedAnsiAtEndRegex.exec(value.slice(windowStart));
if (!match) {
return { complete: value, pending: "" };
}
const splitAt = windowStart + match.index;
return { complete: value.slice(0, splitAt), pending: value.slice(splitAt) };
}
const regex = ansiRegex();
export function stripAnsi(value: string): string {
if (typeof value !== "string") {
throw new TypeError(`Expected a \`string\`, got \`${typeof value}\``);
@@ -56,5 +78,5 @@ export function stripAnsi(value: string): string {
// Even though the regex is global, we don't need to reset the `.lastIndex`
// because unlike `.exec()` and `.test()`, `.replace()` does it automatically
// and doing it manually has a performance penalty.
return value.replace(regex, "");
return value.replace(ansiRegex, "");
}