https://communities.sas.com/t5/SAS-Programming/About-metacharacter/m-p/677912#M204554 <P>This is a PERL Regular Expression.</P> <P>\b means a word boundary (the end or start of a word).</P> <P>There are countless tutorials on the web.&nbsp;</P> Wed, 19 Aug 2020 22:14:52 GMT ChrisNZ 2020-08-19T22:14:52Z https://communities.sas.com/t5/SAS-Programming/About-metacharacter/m-p/677643#M204433 <P>I am currently taking advanced programming course now. I am super confused about the usage of metacharacter. When I did the level 2 practice for course 2, I cannot makes sense the answer, and I don't know how to comprehend and create this metacharacter. Can you please help me figure it out? Thanks so much!</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Jianan_luna_0-1597784461080.png" style="width: 400px;"><img src="https://communities.sas.com/t5/image/serverpage/image-id/48398i96021F3C6D6F6BFB/image-size/medium?v=v2&amp;px=400" role="button" title="Jianan_luna_0-1597784461080.png" alt="Jianan_luna_0-1597784461080.png" /></span></P> <P>&nbsp;</P> Tue, 18 Aug 2020 21:01:09 GMT https://communities.sas.com/t5/SAS-Programming/About-metacharacter/m-p/677643#M204433 Jianan_luna 2020-08-18T21:01:09Z https://communities.sas.com/t5/SAS-Programming/About-metacharacter/m-p/677912#M204554 <P>This is a PERL Regular Expression.</P> <P>\b means a word boundary (the end or start of a word).</P> <P>There are countless tutorials on the web.&nbsp;</P> Wed, 19 Aug 2020 22:14:52 GMT https://communities.sas.com/t5/SAS-Programming/About-metacharacter/m-p/677912#M204554 ChrisNZ 2020-08-19T22:14:52Z