Regular Expressions 101

Community Patterns

RFC3986 URI-reference

1

Regular Expression
ECMAScript (JavaScript)

/
[a-z](?:[a-z]|\d|[+-.])*:(?:\/\/(?:(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|:)*@)?(?:\[(?:(?:[0-9a-f]{1,4}:){6}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|::(?:[0-9a-f]{1,4}:){5}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){4}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:)?[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){3}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:){0,2}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){2}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:){0,3}[0-9a-f]{1,4})?::[0-9a-f]{1,4}:(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:){0,4}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:){0,5}[0-9a-f]{1,4})?::[0-9a-f]{1,4}|(?:(?:[0-9a-f]{1,4}:){0,6}[0-9a-f]{1,4})?::|v(?:[0-9a-f])+\.(?:[a-z]|\d|[-._~]|[!$&'()*+,;=]|:)+)]|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)|(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=])*)(?::(?:\d)*)?(?:\/(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@])*)*|\/(?:(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@]){1,}(?:\/(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@])*)*)?|(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@]){1,}(?:\/(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@])*)*|)(?:\?(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@]|[/?])*)?(?:#(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@]|[/?])*)?|(?:\/\/(?:(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|:)*@)?(?:\[(?:(?:[0-9a-f]{1,4}:){6}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|::(?:[0-9a-f]{1,4}:){5}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){4}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:)?[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){3}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:){0,2}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){2}(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:){0,3}[0-9a-f]{1,4})?::[0-9a-f]{1,4}:(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:){0,4}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d))|(?:(?:[0-9a-f]{1,4}:){0,5}[0-9a-f]{1,4})?::[0-9a-f]{1,4}|(?:(?:[0-9a-f]{1,4}:){0,6}[0-9a-f]{1,4})?::|v(?:[0-9a-f])+\.(?:[a-z]|\d|[-._~]|[!$&'()*+,;=]|:)+)]|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)|(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=])*)(?::(?:\d)*)?(?:\/(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@])*)*|\/(?:(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@]){1,}(?:\/(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@])*)*)?|(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|@){1,}(?:\/(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@])*)*|)(?:\?(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@]|[/?])*)?(?:#(?:[a-z]|\d|[-._~]|%[0-9a-f]{2}|[!$&'()*+,;=]|[:@]|[/?])*)?
/
i

Description

Regexp to match URI-reference using syntax defined in RFC 3986 a.k.a. Uniform Resource Identifier (URI): Generic Syntax to create best URI-reference regexp there is (noone bothered to do so).

#URL #URI #RFC #3986 #RFC3986

Submitted by Niemiets - a month ago (Last modified 13 days ago)