Binary condition for String pattern matching.
The value of the pattern MUST be a String which MAY contain one or more "*" characters. The expression yields true if the data value selected by the Variable Path matches the value, where "*" in the value matches zero or more characters. Thus, foo*.log matches foo23.log, *.log matches zebra.log, and foo*.* matches foobar.zebra. No characters other than "*" have any special meaning during matching.
If the character "*" needs to appear as part of the value without serving as a wildcard, it MUST be escaped with a backslash.
If the character "\" needs to appear as part of the value without serving as an escape character, it MUST be escaped with a backslash.