Cabletron Systems SSR-GLX19-02, User Manual

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Appendix C: Supported Regular Expressions
458 CoreWatch User’s Manual
• The following atoms:
– Regular expression within parentheses
– A . matches everything except \n
– Character classes [such as (abcd) and ranges (such as (a-z)]
You may include special backslashed characters within a character class (except for
back-references and boundaries).
To represent a backspace in a character class enter \b
– a ^ is a null token that matches the beginning of a string or line
– a $ is a null token that matches the end of a string or line
– The special backslashed characters described in the following table. Any other
backslashed character matches itself.
Table 86. Supported special (backslashed) characters
Character Description
\b Null token that matches a word boundary (\w on one side and \W on
the other)
\B Null token that matches a boundary that is not a word boundary
\A Match only at the beginning of string
\Z Match only at the end of string or before a new line at the end
\n New line
\r Carriage return
\t Tab
\f Formfeed
\d Digits from 0-9
\D Non-digits
\w Alphanumeric characters (0-9, a-z, and A-Z)
\W Nonalphanumeric characters (0-9, a-z, and A-Z)
\s The following white space characters: tab, new line, carriage return,
and formfeed
\S Characters other than the following white space characters: tab, new
line, carriage return, and formfeed
\xnn Hexadecimal representation of character