Thanks for the clarification Art. I'll research the PRX functions and get back to you. ... View more

We only document these expressions in the Functions and Call Routines document. Years ago SAS decided not to include all of the expressions, only commonly used expressions that are included in the Tables of Perl Regular Expression (PRX) Metacharacters table. We also give more information in the Using Perl Regular Expressions in the DATA Step section. I will contact R&D and have them review the PRX table. I'll update the table with missing expressions. Thanks for the messages. ... View more

We will add this information to the next release, 9.4M5 of the SAS 9.4 Functions and CALL Routines: Reference document. ... View more