+@node Reader Extensions
+@comment node-name, next, previous, up
+@section Reader Extensions
+@cindex Reader Extensions
+
+SBCL supports extended package prefix syntax, which allows specifying
+the package to read an arbitrary form in:
+
+@lisp
+<package-name>::<form-in-package>
+@end lisp
+
+Example:
+
+@lisp
+ 'foo::(bar quux zot) == '(foo::bar foo::quux foo::zot)
+@end lisp
+