.cindex router variables
This option may be used multiple times on a router;
because of this the list aspect is mostly irrelevant.
-The list separator is a colon but can be changed in the
+The list separator is a semicolon but can be changed in the
usual way.
Each list-element given must be of the form $"name = value"$
and the names used must start with the string &"r_"&.
-Values containing colons should either have them doubled, or
-the entire list should be prefixed with a list-separator change.
+Values containing a list-separator should have them doubled.
When a router runs, the strings are evaluated in order,
to create variables which are added to the set associated with
the address.