public Tuple2 < ReadOnlyStyledDocument < PS , SEG , S > , ReadOnlyStyledDocument < PS , SEG , S > > split ( int paragraphIndex , int columnPosition ) { return tree . splitAt ( paragraphIndex ) . map ( ( l , p , r ) -> { Paragraph < PS , SEG , S > p1 = p . trim ( columnPosition ) ; Paragraph < PS , SEG , S > p2 = p . subSequence ( columnPosition ) ; ReadOnlyStyledDocument < PS , SEG , S > doc1 = new ReadOnlyStyledDocument <> ( l . append ( p1 ) ) ; ReadOnlyStyledDocument < PS , SEG , S > doc2 = new ReadOnlyStyledDocument <> ( r . prepend ( p2 ) ) ; return t ( doc1 , doc2 ) ; } ) ; }
Splits this document into two at the given paragraph s column position and returns both halves .