https://communities.sas.com/t5/SAS-Programming/Should-I-use-SAS-Regular-Expressions-or-Perl-Regular-Expressions/m-p/56924#M12195 Base SAS contains two classes of regular expression functions; the older SAS Regular Expressions and the newer (added version 9) Perl Regular Expressions. I'm going to need to do some work with regexps, and I'm wondering which set SAS offers a higher level of support for. I don't want to invest in learning one, just to have it deprecated. Wed, 28 Jul 2010 16:59:27 GMT TomKari 2010-07-28T16:59:27Z https://communities.sas.com/t5/SAS-Programming/Should-I-use-SAS-Regular-Expressions-or-Perl-Regular-Expressions/m-p/56924#M12195 Base SAS contains two classes of regular expression functions; the older SAS Regular Expressions and the newer (added version 9) Perl Regular Expressions. I'm going to need to do some work with regexps, and I'm wondering which set SAS offers a higher level of support for. I don't want to invest in learning one, just to have it deprecated. Wed, 28 Jul 2010 16:59:27 GMT https://communities.sas.com/t5/SAS-Programming/Should-I-use-SAS-Regular-Expressions-or-Perl-Regular-Expressions/m-p/56924#M12195 TomKari 2010-07-28T16:59:27Z https://communities.sas.com/t5/SAS-Programming/Should-I-use-SAS-Regular-Expressions-or-Perl-Regular-Expressions/m-p/56925#M12196 I would use Perl RegEx as they follow a broader standard and will more likely be the ones which will be extended and prevail. Thu, 29 Jul 2010 05:54:52 GMT https://communities.sas.com/t5/SAS-Programming/Should-I-use-SAS-Regular-Expressions-or-Perl-Regular-Expressions/m-p/56925#M12196 Patrick 2010-07-29T05:54:52Z https://communities.sas.com/t5/SAS-Programming/Should-I-use-SAS-Regular-Expressions-or-Perl-Regular-Expressions/m-p/56926#M12197 I suggest that you should use Perl Regular Expressions. Thu, 29 Jul 2010 07:19:57 GMT https://communities.sas.com/t5/SAS-Programming/Should-I-use-SAS-Regular-Expressions-or-Perl-Regular-Expressions/m-p/56926#M12197 KevinQin 2010-07-29T07:19:57Z