Regular Expressions match exactly 7 or 9 digits
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Is there a regex quantifier that says "either x or y repeats"?
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Regular expression to extract special number
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Formal Languages - Regular Expression
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using regex for math expressions in java?
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How to validate phone numbers using regex
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return only Digits 0-9 from a String
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How can I find all matches to a regular expression in Python?
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Math operations in regex
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Simple regular expression for a decimal with a precision of 2
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How do I match any character across multiple lines in a regular expression?
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Regular expression to split string and number
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Best way to get all digits from a string
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Regex to get NUMBER only from String
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How does this regular expression work?
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Regex for positive float numbers
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Need a regex to exclude certain strings
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regular expressions / pattern matching on ubuntu command line