==================
Single term index
==================

={ democracy }

---

(document
  (book_index
    (index_content)))

==================
Multiple terms
==================

={ democracy ; freedom of speech ; public domain }

---

(document
  (book_index
    (index_content)))

==================
Term with sub-term
==================

={ copyright law : duration of }

---

(document
  (book_index
    (index_content)))

==================
Term with span
==================

={ animated cartoons +15 }

---

(document
  (book_index
    (index_content)))

==================
Multiple sub-terms with pipe
==================

={ public domain : defined | traditional contours of }

---

(document
  (book_index
    (index_content)))

==================
Complex multi-line index
==================

={ animated cartoons +15 ;
   Steamboat Willie +9
}

---

(document
  (book_index
    (index_content)))