[RFC PATCH 20/20] add typed documentation

[Asbjørn Sloth Tønnesen]

---
 doc/bird.sgml | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/doc/bird.sgml b/doc/bird.sgml
index 8548c9c6..b9e5c45d 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -1229,6 +1229,16 @@ bird> show route filter { if 127.0.0.5 ˜ net then accept; }
 bird>
 </code>
 
+<p>Constants, functions and filters can also be declared for a specific table type context.
+
+<code>
+define default_route:ipv4 = 0.0.0.0/0;
+define default_route:ipv6 = ::/0;
+
+function is_default_route()
+	return net = default_route;
+}
+</code>
 
 <sect>Data types
 <label id="data-types">
-- 
2.24.0