Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Reference material
Regular expressions
Regular expressions can be used in conjunction with a number of VCS features such as alias
transformations, zone transformations, CPL policy and ENUM. The VCS uses POSIX format regular
expression syntax. The table below provides a list of commonly used special characters in regular
expression syntax. This is only a subset of the full range of expressions available. For a detailed
description of regular expression syntax see the publication Mastering Regular Expressions [
transformations, zone transformations, CPL policy and ENUM. The VCS uses POSIX format regular
expression syntax. The table below provides a list of commonly used special characters in regular
expression syntax. This is only a subset of the full range of expressions available. For a detailed
description of regular expression syntax see the publication Mastering Regular Expressions [
].
Character Description
Example
.
Matches any single character.
\d
Matches any decimal digit, i.e. 0-9.
*
Matches 0 or more repetitions of the
previous character or expression.
previous character or expression.
.*
matches against any sequence of
characters.
+
Matches 1 or more repetitions of the
previous character or expression.
previous character or expression.
?
Matches 0 or 1 repetitions of the
previous character or expression.
previous character or expression.
9?123
matches against 9123 and 123.
{n}
Matches n repetitions of the previous
character or expression
character or expression
\d{3}
matches 3 digits.
{n,m}
Matches n to m repetitions of the
previous character or expression
previous character or expression
\d{3,5}
matches 3, 4 or 5 digits.
[...]
Matches a set of specified
characters. Each character in the
set can be specified individually, or
a range can be specified by giving
the first character in the range
followed by the - character and then
the last character in the range.
characters. Each character in the
set can be specified individually, or
a range can be specified by giving
the first character in the range
followed by the - character and then
the last character in the range.
You cannot use special characters
within the [] - they will be taken
literally.
within the [] - they will be taken
literally.
[a-z]
matches any alphabetical character.
[0-9#*]
matches against any single E.164
character - the E.164 character set is made up
of the digits 0-9 plus the hash key (#) and the
asterisk key (*).
of the digits 0-9 plus the hash key (#) and the
asterisk key (*).
[^...]
Matches anything except the set of
specified characters. Each
character in the set can be specified
individually, or a range can be
specified by giving the first
character in the range followed by
the - character and then the last
character in the range.
specified characters. Each
character in the set can be specified
individually, or a range can be
specified by giving the first
character in the range followed by
the - character and then the last
character in the range.
You cannot use special characters
within the [] - they will be taken
literally.
within the [] - they will be taken
literally.
[^a-z]
matches any non-alphabetical
character.
[^0-9#*]
matches anything other than the
digits 0-9, the hash key (#) and the asterisk key
(*).
(*).
Cisco VCS Administrator Guide (X6.1)
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