265-29: An Introduction to Perl Regular Expressions in SAS 9

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Everything else is a standard Perl regular expression. In this example, we are 1 SUGI 29 Tutorials. using the forward slashes (/) as the default Perl delimiters. The letters 'cat' inside the slashes specify an exact match to the characters "cat". Each time you compile a regular expression, SAS assigns sequential numbers to the resulting

  Example, Expression, Regular, Perl, Regular expression, Perl regular expressions