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[[File:Regex Cheat Sheet.pdf]] | |||
Revision as of 09:01, 11 May 2017
Computational thinking, problem-solving and programming[1]
A regular expression, regex (sometimes called a rational expression) is, in theoretical computer science and formal language theory, a sequence of characters that define a search pattern. Usually this pattern is then used by string searching algorithms for "find" or "find and replace" operations on strings.[2]