From 18ea2ea759963a68a1a9f82d50aa9ed90b128df9 Mon Sep 17 00:00:00 2001
From: "Ondrej Zajicek (work)" <santiago@crfreenet.org>
Date: Wed, 13 Sep 2017 13:10:50 +0200
Subject: [PATCH] Doc: Document 'empty' operator

Thanks to Alexander Zubkov for the notification.
---
 doc/bird.sgml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/doc/bird.sgml b/doc/bird.sgml
index 03d37f46..c549e3c3 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -1196,6 +1196,8 @@ foot).
 
 	<cf><m/P/.len</cf> returns the length of path <m/P/.
 
+	<cf><m/P/.empty</cf> resets path <m/P/ to empty path.
+
 	<cf>prepend(<m/P/,<m/A/)</cf> prepends ASN <m/A/ to path <m/P/ and
 	returns the result.
 
@@ -1234,6 +1236,8 @@ foot).
 
 	<cf><m/C/.len</cf> returns the length of clist <m/C/.
 
+	<cf><m/C/.empty</cf> resets clist <m/C/ to empty clist.
+
 	<cf>add(<m/C/,<m/P/)</cf> adds pair (or quad) <m/P/ to clist <m/C/ and
 	returns the result. If item <m/P/ is already in clist <m/C/, it does
 	nothing. <m/P/ may also be a clist, in that case all its members are