hextream-0.3.0.0: test/sgml.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE sgml [
  <!ELEMENT sgml ANY>
  <!ENTITY % std       "standard SGML">
  <!ENTITY % signature " &#x2014; &author;.">
  <!ENTITY % question  "Why couldn&#x2019;t I publish my books directly in %std;?">
  <!ENTITY % author    "William Shakespeare">
]>
<sgml>&question;&signature;</sgml>