Function pickDepthOneUuidCandidate

src/utils/sessionStorage.ts:3276–3305

* Disambiguate multiple `"uuid":"<36>","timestamp":"` matches in one line by * finding the one at JSON nesting depth 1. String-aware brace counter: * `{`/`}` inside string values don't count; `\"` and `\\` inside strings are * handled. Candidates is sorted ascending (the scan loop produces them i

(
  buf: Buffer,
  lineStart: number,
  candidates: number[],
)

 * first depth-1 hit.
 */
function pickDepthOneUuidCandidate(
  buf: Buffer,
  lineStart: number,
  candidates: number[],
): number {
  const QUOTE = 0x22
  const BACKSLASH = 0x5c
  const OPEN_BRACE = 0x7b
  const CLOSE_BRACE = 0x7d
  let depth = 0
  let inString = false
  let escapeNext = false
  let ci = 0
  for (let i = lineStart; ci < candidates.length; i++) {
    if (i === candidates[ci]) {
      if (depth === 1 && !inString) return candidates[ci]!
      ci++
    }
    const b = buf[i]!
    if (escapeNext) {
      escapeNext = false
    } else if (inString) {
      if (b === BACKSLASH) escapeNext = true
      else if (b === QUOTE) inString = false
    } else if (b === QUOTE) inString = true
    else if (b === OPEN_BRACE) depth++
    else if (b === CLOSE_BRACE) depth--
  }
  return candidates.at(-1)!
}

function walkChainBeforeParse(buf: Buffer): Buffer {
  const NEWLINE = 0x0a