Function findNthMatchIndex

src/renderer/src/hooks/useGlobalSearchHighlight.ts:168–183

(fullText: string, matchText: string, occurrenceIndex: number)

}

function findNthMatchIndex(fullText: string, matchText: string, occurrenceIndex: number): number {
  let currentIndex = 0
  let searchStartIndex = 0

  while (true) {
    const idx = fullText.indexOf(matchText, searchStartIndex)
    if (idx === -1) return -1

    if (currentIndex === occurrenceIndex) {
      return idx
    }

    currentIndex++
    searchStartIndex = idx + 1
  }
}

/**
 * 根据拼接文本的偏移量创建 Range