Basic HTML version of Foils prepared
March 30 97
Foil 38 Predefined Character Classes in Regular Expressions
(Chapter 7 of the Llama Book)
From
PERL4 Tutorial for CPS616 Computational Science for Information Age Course CPS616 --
February 1995
.
by
Geoffrey C. Fox
\d digits [0-9]
\D NOT digits [^0-9]
\w word characters [a-zA-Z0-9_]
Really anything legal in a PERL variable name after $ % @ indicators of a variable
Note \b indicates break between \w and \W
\W NOT word characters [^a-zA-Z0-9_]
\s White Space [ \r\t\n\f]
\S NOT white space [^ \r\t\n\f]
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Basic HTML version of Foils prepared March 30 97
