| Language Reference |
Character String Matching Functions and Subroutines
| CALL RXCHANGE | changes one or more substrings that match a pattern |
| CALL RXFREE | frees memory allocated by other regular expression (RX) functions and CALL routines |
| RXMATCH | finds the beginning of a substring that matches a pattern |
| RXPARSE | parses a pattern |
| CALL RXSUBSTR | finds the position, length, and score of a substring that matches a pattern |
| CALL PRXCHANGE | performs a pattern matching substitution |
| CALL PRXDEBUG | enables Perl regular expressions in a DATA step to send debug output to the SAS log |
| CALL PRXFREE | frees unneeded memory that was allocated for a Perl regular expression |
| PRXMATCH | searches for a pattern match and returns the position at which the pattern is found |
| CALL PRXNEXT | returns the position and length of a substring that matches a pattern and iterates over multiple matches within one string |
| PRXPAREN | returns the last bracket match for which there is a match in a pattern |
| PRXPARSE | compiles a Perl regular expression that can be used for pattern matching of a character value |
| CALL PRXPOSN | returns the start position and length for a capture buffer |
| CALL PRXSUBSTR | returns the position and length of a substring that matches a pattern |
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