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- DictionaryRegular expression
noun
- 1. a sequence of symbols and characters expressing a string or pattern to be searched for within a longer piece of text.
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- Regular expression
Sequence of characters that forms a search pattern
A regular expression (shortened as regex or regexp), sometimes referred to as rational expression, is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation. Regular expression techniques are developed in theoretical computer science and formal lan... Wikipedia
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