codePoint: Int,
    sink: BufferedSink,
  ): Boolean {
    val sectionsIndex = findSectionsIndex(codePoint)

    val rangesPosition = sections.read14BitInt(sectionsIndex + 2)

    val rangesLimit =
      when {
        sectionsIndex + 4 < sections.length -> sections.read14BitInt(sectionsIndex + 6)
        else -> ranges.length / 4
      }

    val rangesIndex = findRangesOffset(codePoint, rangesPosition, rangesLimit)