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In theoretical computer science and formal language theory, a regular expression (abbreviated regex or regexp) is a sequence of characters that forms a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations.
Added 6/1/2014 12:12:05 AM
This answer has been confirmed as correct and helpful.
Confirmed by
Janet17 [6/17/2014 5:37:32 AM]
