1. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Learning SAS’s Perl Regular Expression Matching the Easy Way: By Doing Author: Paul Genovesi, Henry Jackson Foundation

2. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Presentation Topics Review of prxmatch() and prxchange() functions. regex_learning_tool contents. Perl-regular-expression (PRX) processing. Substitution-PRX processing. Commenting out a match record. Running an ordered list or a program. Obtaining a copy of the project and Excel file. 2

3. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 SAS’s prxmatch() function is used for matching only Syntax: prxmatch(perl-regular-expression, source) Example: data _null_; position = prxmatch(‘/world/’, 'Hello world!'); put position=; run; SAS log output: position=7 3

4. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 SAS’s prxchange() function is used for matching and substitution Syntax: prxchange(substitution-perl-regular-expression, times, source) Example: data _null_; name = 'Jones, Fred'; name = prxchange('s/(\w+), (\w+)/$2 $1/', -1, name); put name=; run; SAS log output: name=Fred Jones 4

5. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 regex_learning_tool contents regex_learning_tool.egp input_file.xlsx 5

6. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 The Excel file contains two types of match records / / perl-regular-expression s/ / / substitution-perl-regular-expression 6

7. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Processing perl-regular-expression (PRX) match records prxmatch(regex, source) 7

8. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 PRX match record output (SAS dataset) The Excel file’s original 4 fields are high- lighted. 8

9. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Processing substitution-PRX match records prxchange(regex, times, source) 9

10. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Substitution-PRX match record output Only substitution-PRX match records will have output in these two fields. 10

11. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 prxchange() functions create output for substitution-PRX match records prxchange(s/ / /, 1, source) prxchange(s/ / /, -1, source) 11

12. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Commenting out a match record in the Excel file Prepend an asterisk within the regex field… 12 …and Output will indicate it was not processed.

13. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Ordered List versus Program Every ordered list has a corresponding program with the same name. 13

14. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Ordered List versus Program Running an ordered list does two things: 1. Imports Excel file data. 2. Runs the same-named program. Running a program does not import Excel file data. 14

15. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Running an Ordered List Right-click on an ordered list and then click run. 15

16. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Running a Program Right-click on a program and then click Run. 16

17. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 A list of all ordered lists 17

18. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Common pop-up message If you receive the following pop-up message when attempting to either run an ordered list or save the project, then just click ‘ok.’ Every ordered list contains a call to the 2 mentioned items and you are being made aware of that. 18

19. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Worth mentioning Output comes in the form of a SAS dataset or SAS report. 19

20. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Obtaining a copy of the project and Excel file Obtaining a copy of regex_learning_tool will be discussed at the conference. 20

21. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Questions? Please ask… 21

22. Distribution A: Approved for public release; distribution is unlimited. Case Number: 88ABW-2014-4183, 4 Sep 2014 Contact Information Paul Genovesi Henry Jackson Foundation for the Advancement of Military Medicine Inc. Wright-Patterson AFB, Ohio pcg7285g@gmail.com 22