Regular expressions are powerful searching tools and take various syntax delimiters to aid in searching.
|
Expression |
Description |
|
^ |
Specifies the start of a path. Used as the first item within brackets, specifies any AS number except the set specified. |
|
$ |
Specifies the end of a path. |
|
{ |
Specifies the start of an AS_SET. |
|
} |
Specifies the end of an AS_SET. |
|
( |
Specifies the start of an AS_CONFED_SET or AS_CONFED_SEQ. |
|
) |
Specifies the end of an AS_CONFED_SET or AS_CONFED_SEQ. |
|
. |
Matches any single character. |
|
.* |
Matches 0 or more of any characters. |
|
.+ |
Matches 1 or more of any characters. |
|
_ |
Matches 0 or 1 instance of any punctuation character. |
|
[] |
Specifies a set of characters. |
|
- |
Specifies a wide range of AS numbers. |