BSM Connector Reference > Pattern Matching in Policy Rules > Pattern Matching for Variables

Pattern Matching for Variables

You can test a string or variable against a pattern, and define an output string that is conditional on the result. You can do this using $MATCH, which has the following syntax:

$MATCH(string, pattern, true, [false])

Specify the parameters as follows:

string
Specify a literal string (for example, TEST STRING) or a policy variable (for example <$LOGPATH>).
pattern
Specify a pattern, using HP Operations Agent pattern matching syntax. You can create user-defined variables in the pattern to use in the parameters true and false. The pattern is case sensitive.
true
Specify a string to return if the string and pattern match. You can specify a literal string, or a user-defined variable, or a policy variable.
false
Optional. Specify a string to return if the string and pattern do not match. You can specify a literal string, or a user-defined variable, or a policy variable.

Separate each parameter with a comma (,). To specify a comma within a parameter, you must precede it with two backslashes (\\).

You can use $MATCH within your policies in the following event attributes:

Note: You can use $MATCH only once in each message attribute. You cannot use $MATCH recursively.