Regular Expressions 101

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Library entries

IP/MASK or IP/CIDR (accept 5.5.5.0/255.255.255.0 and 5.5.5.0/24)

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Regular Expression
javascript

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^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\/((((([0-9])|(?:[1-2][0-9])|(?:3[0-2]))|(([1-9]?\\d|1\\d\\d|25[0-5]|2[0-4]\\d)\.){3}([1-9]?\\d|1\\d\\d|25[0-5]|2[0-4]\\d)(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])))|(((255\.){3}(255|254|252|248|240|224|192|128|0+))|((255\.){2}(255|254|252|248|240|224|192|128|0+)\.0)|((255\.)(255|254|252|248|240|224|192|128|0+)(\.0+){2})|((255|254|252|248|240|224|192|128|0+)(\.0+){3})))$
/
mg

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Submitted by anonymous - 3 years ago