Right Associative Matching Example (for Docs)

Use right associative matching when working with tabular data and you
want to match columns near the end of the line. For example, parsing a
CSV file with /(?i:":*:email:".+?"([[:print:]]+?)".+?\n)/ matches the
column after :email: while /(?ir:":*:email:".+?"([[:print:]]+?)".+?\n)/
matches the last column on the line. 

Chris




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