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$alnum (parse-spec) function - Documentation for BMC AMI Command Center for Security 6.2
The text portion that contains alphanumeric characters (with punctuation removed) is returned and delimited by the first space character. If the parse-spec value does not return an alphanumeric text value, then the match specification is not matched.
The following examples show target strings, parse expressions, and return values:
| Target String | Parse expression | Return value |
|---|---|---|
| A B test123 | $alpha (3) | test123 |
| Test ABC123 value | $alnum ($2) | ABC123 |
| Test DEF456 value | $alnum (test *) | DEF456 |
| Test 009Strval999 value | $alnum (test *) | 009Strval999 |
| Test A1B1C1 | $alnum ($2) | A1B1C1 |
| This is a test V1:V2:V3 | $alnum (test *) | V1V2V3 |
| Test string 12345 | $alnum ($3) | 12345 |
| Test string AAA | $alnum ($4) | No match Explanation: There is no fourth word in the string. |
| Test String999 value | $alnum (xxx: *) | No match Explanation: There is no match for xxx: * in the target string. |
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