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EMC Smarts Application Connectivity Monitor Configuration Guide 43
A
Wildcards Used By EMC
Smarts Software
This appendix describes the wildcards used by EMC Smarts software. The
wildcards can be used for pattern matching in noted instances.
A wildcard pattern is a series of characters that are matched against
incoming character strings. You can use these patterns when you define
pattern matching criteria.
Matching is done strictly from left to right, one character or basic wildcard
pattern at a time. Basic wildcard patterns are defined in Table 10.
Characters that are not part of match constructs match themselves. The
pattern and the incoming string must match completely. For example, the
pattern abcd does not match the input abcde or abc.
A compound wildcard pattern consists of one or more basic wildcard
patterns separated by ampersand (&) or tilde (~) characters. A compound
wildcard pattern is matched by attempting to match each of its component
basic wildcard patterns against the entire input string. For compound
wildcard patterns, see Table 11.
If the first character of a compound wildcard pattern is an ampersand (&) or
tilde (~) character, the compound is interpreted as if an asterisk (*)
appeared at the beginning of the pattern. For example, the pattern ~*[0-9]*
matches any string not containing any digits. A trailing instance of an
ampersand character (&) can only match the empty string. A trailing instance
of a tilde character (~) can be read as “except for the empty string.”