Functions and CALL Routines

CALL PRXFREE Routine

Frees unneeded memory that was allocated for a Perl regular expression

Category:	Character String Matching
Restriction:	Use with the PRXPARSE function

Syntax
Arguments
Details
Comparisons
See Also

Syntax

CALL PRXFREE (regular-expression-id);

Arguments

regular-expression-id: specifies a numeric identification number that is returned by the PRXPARSE function. regular-expression-id is set to missing if the call to the PRXFREE routine occurs without error.

Details

The CALL PRXFREE routine frees unneeded resources that were allocated for a Perl regular expression.

For more information about pattern matching, see Pattern Matching Using SAS Regular Expressions (RX) and Perl Regular Expressions (PRX).

Comparisons

The Perl regular expression (PRX) functions and CALL routines work together to manipulate strings that match patterns. To see a list and short description of these functions and CALL routines, see the Character String Matching category in Functions and CALL Routines by Category.

See Also

Functions and CALL routines:

	CALL PRXCHANGE Routine
	CALL PRXDEBUG Routine
	CALL PRXNEXT Routine
	CALL PRXPOSN Routine
	CALL PRXSUBSTR Routine
	CALL PRXCHANGE Routine
	PRXCHANGE Function
	PRXPAREN Function
	PRXPAREN Function
	PRXPARSE Function
	PRXPOSN Function

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