apps.apple.com/shared/logger/node_modules/@sentry/utils/esm/tracing.js

const TRACEPARENT_REGEXP = new RegExp(
  '^[ \\t]*' + // whitespace
    '([0-9a-f]{32})?' + // trace_id
    '-?([0-9a-f]{16})?' + // span_id
    '-?([01])?' + // sampled
    '[ \\t]*$', // whitespace
);

/**
 * Extract transaction context data from a `sentry-trace` header.
 *
 * @param traceparent Traceparent string
 *
 * @returns Object containing data from the header, or undefined if traceparent string is malformed
 */
function extractTraceparentData(traceparent) {
  const matches = traceparent.match(TRACEPARENT_REGEXP);

  if (!traceparent || !matches) {
    // empty string or no matches is invalid traceparent data
    return undefined;
  }

  let parentSampled;
  if (matches[3] === '1') {
    parentSampled = true;
  } else if (matches[3] === '0') {
    parentSampled = false;
  }

  return {
    traceId: matches[1],
    parentSampled,
    parentSpanId: matches[2],
  };
}

export { TRACEPARENT_REGEXP, extractTraceparentData };
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