在JSON/数据库中保存文本的行号而不按行分解文本?

我有短信。根据一些正在印刷的书,文本有不同的行号。我的应用程序也需要这样显示。例如。:

1 This is a sentence. Here is another. The third sentence   1
2 stretches over multiple lines and is only completed in    2
3 line number 3. Then we have a fourth and fifth sentence,  3
4 but then that's it. That's it.                            4

文本需要保存在某个后端的某个地方。我可以逐行保存整个文本:

text = {
{
  line_no: 1,
  content: "This is a sentence. Here is another. The third sentence", 
}, 
{ 
  line_no: 2,
  content: "stretches over multiple lines and is only completed in", 
}, 
etc...};

一句话 而且几乎从不使用线条,除非我需要在屏幕上呈现文本。所以假设我需要保存一个特定句子的字数。将文本分成句子会容易得多:

{
  sentence_no: 1,
  content: "This is a sentence.",
  word_count: 3
},
{
  sentence_no: 2,
  content: "Here is another.",
  word_count: 3
},
{
  sentence_no: 3,
  content: "The third sentence stretches over multiple lines and is only completed in line number 3. ",
  word_count: 15
},
etc....

我正在努力理解如何使用后一种方法(或类似的方法),并且仍然在某处保存行号。我将非常感谢你的建议!