Function matching

telemetry-worker/src/index.ts:44–46

(re: RegExp, maxLen: number)

const matching =
  (re: RegExp, maxLen: number): Sanitize =>
  (v) =>
    typeof v === 'string' && v.length > 0 && v.length <= maxLen && re.test(v) ? v : undefined;

const token = (maxLen: number): Sanitize => matching(TOKEN_RE, maxLen);
const label = (maxLen: number): Sanitize => matching(LABEL_RE, maxLen);