Regex: how to match all character classes and not just one or more
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Regular Expressions: Is there an AND operator?
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Regex to remove letters, symbols except numbers
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How to match hyphens with Regular Expression?
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Regular expression matching a multiline block of text
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Python regular expressions - how to capture multiple groups from a wildcard expression?
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RegEx to make sure that the string contains at least one lower case char, upper case char, digit and symbol
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How to find overlapping matches with a regexp?
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Regular Expression for alphanumeric and underscores
82797
Regex to match any character including new lines
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Non greedy (reluctant) regex matching in sed?
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Regex Pattern to Match, Excluding when... / Except between
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Can regular expressions be used to match nested patterns?
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Regex: match everything but specific pattern
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JavaScript regular expressions and sub-matches
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Learning Regular Expressions
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How to check if a given Regex is valid?
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regular expressions / pattern matching on ubuntu command line