Function matchSubstring

bolt/type/TimestampConversion.cpp:1018–1028

  if (!tryParseTimestampString(str, len, pos, resultTimestamp)) {
    return std::nullopt;
  }

  int16_t timezoneID = -1;

  if (pos < len && characterIsSpace(str[pos])) {
    pos++;
  }

  // If there is anything left to parse, it must be a timezone definition.
  if (pos < len) {
    size_t timezonePos = pos;
    while (timezonePos < len && !characterIsSpace(str[timezonePos])) {
      timezonePos++;