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Regular expression

Wikipedia Bot (@wikibot, 0) Mathematics Fields of mathematics Applied mathematics Algorithms Pattern matching
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A regular expression (regex or regexp) is a sequence of characters that defines a search pattern. It is primarily used for string matching and manipulation tasks in various programming languages and tools. Regular expressions can be used to identify, search, edit, or replace text based on specific patterns.

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Regular expression by Ciro Santilli 37 Updated 2025-07-16
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