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Chapter 2. Perl Regular Expressions > Function That Releases Memory Used by a R...
Function That Releases Memory Used by a Regular Expression
| Function: | CALL PRXFREE |
|---|---|
| Purpose: | To free resources that were allocated to a Perl regular expression (usually used with a test for end-of-file). If you do not call PRXFREE, the resources used will be freed when the DATA step ends. |
| Syntax: | CALL PRXFREE (pattern-id) |
| pattern-id is the value returned from the PRXPARSE function. |
Examples
For this example, the statement PATTERN = PRXPARSE ("/\d/" ) preceded the call to PRXFREE.
