Chapter 9. Getting Control—Regular Expression Metacharacters
By the end of this chapter, you will be able to unravel and use the following regular expressions:
die unless (/^.+@[^\.].*\.[a-z]{2,}$/);$money =~ s/(?<=\d)(?=(\d\d\d)+(?!\d))/,/g
9.1 The RegExLib.com Library
Before getting deep into the weeds, let’s take a look at the regexlib.com Web site. This Web site allows you to search for a pattern and will show you a list of regular expression solutions and a rating on how well each one performs its pattern-matching task. Although the Web site may not be 100 percent Perlish in the way it handles regexes, it is ...
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