Method cursor_char_idx

src/editor/buffer.rs:373–376

(&self)

    }

    fn cursor_char_idx(&self) -> usize {
        self.document
            .position_to_char(self.cursor.line, self.cursor.column)
    }

    fn push_undo(&mut self, record: UndoRecord) {
        if record.inserted.is_empty() && record.deleted.is_empty() {