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An Intro to Regular Expressions
by
edohnberg
on 2/11/14, 4:20 PM with 1 comments
by
Scaevolus
on 2/11/14, 5:28 PM
Russ Cox's regex pages are a good place to look for a more in depth treatment. Knowing the fundamental representations helps you separate the sugar from the syntax.
http://swtch.com/~rsc/regexp/regexp1.html