Foundry Networks AR3202-CL - Manual (Page 217)

Foundry AR-Series Router User Guide
13 - 2 © 2004 Foundry Networks, Inc. June 2004
!AS Matches any AS number except the given one.
AS1 -AS2 Is a range of ASs. It matches all AS numbers between AS1 and AS2 inclusive.
!AS1 - AS2 This matches all numbers except the given one.
. Matches any number.
null Matches an empty (0 length) string, e.g., (AS1 empty AS2) is equivalent to
(AS1 AS2).
term {m, n} A term followed by {m, n} (where m and n are both non-negative integers and
m <= n) means at least m and at most n repetitions.
term {m} A term followed by {m} (where m is a positive integer) matches m or more
repetitions of term.
term {m,} A term followed by {m,} (where m is a positive integer) matches m or more
repetitions of term
term * A term followed by * matches zero or more repetitions of term. This is
shorthand for {0,}.
term + A term followed by + matches one or more repetitions of term. This is
shorthand for {1,}.
term ? A term followed by ? matches zero or one repetition of term. This is shorthand
for {0,1}.
[ as_range_list
] Brackets union the items of an as_range_list. An item of this list can be either
an AS or a range. For example, {AS1 AS2 - AS3 AS4] is equivalent to (AS1 |
AS2-AS3 | AS4).
( regex ) Parentheses group expressions to make a term out of any regex. An operator,
such as * or ?, works on a regular expression enclosed in parentheses as it
would any term.