Foundry
!AS | Matches any AS number except the given one. |
AS1 | Is a range of ASs. It matches all AS numbers between AS1 and AS2 inclusive. |
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!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 |
| 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 |
| |
( 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. |
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13 - 2 | © 2004 Foundry Networks, Inc. | June 2004 |
