toTextData

Splits the receiver into segments of normal text and furigana pairs.

The parser looks for the marker [漢字[かんじ]] :

• The first bracketed chunk (漢字) becomes TextData.text.

• The nested chunk (かんじ) becomes TextData.reading.

• All text outside the marker is returned unchanged with reading = null.

The original order is preserved. If the string contains no markers, the whole string is returned as a single TextData with reading = null.

val parts = "これは[漢字[かんじ]]です".toTextData()
// [
//   TextData(text = "これは"),
//   TextData(text = "漢字", reading = "かんじ"),
//   TextData(text = "です")
// ]