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Regex for a HTML tag
Regex for a HTML tag <.[^>]*> This can proove invaluable when you're wanting to replace keywords in HTML without spoiling the tags themselves. Particularly useful in SEO.
Paul Hayman - 2,948 viewsDate Regular Expression (dd/MMM/yyyy)
Date Regular Expression (dd/MMM/yyyy) The following matches: 01/JAN/2007 22/Feb/2006 But doesn't match: 01/01/2007 22/02/2007 01 Jan 2007 ^(([0-9])|([0-2][0-9])|([3][0-1]))\/(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\/\d{4
Paul Hayman - 30,980 viewsHex code Regular Expression (#F0F0F0)
Hex code Regular Expression (#F0F0F0) The following matches valid HTML hexadecimal color codes. The # symbol is optional. It will except either the 3 digit form for the 216 Web safe colors, or the full 6 digit form. ^#?([a-f]|[A-F]|[0-9]){3}(([a-f]|[A-F]|[0-9]){3})?$
Paul Hayman - 16,749 viewsEmail Regex Pattern
Email Regex Pattern ^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$
Paul Hayman - 5,629 viewsTime Regular Expression
Time Regular Expression ^([0-1][0-9]|[2][0-3]):([0-5][0-9])$
Paul Hayman - 5,021 viewsISBN Number regular expression
ISBN Number regular expression string pattern = @"ISBN\x20(?=.{13}$)\d{1,5}([- ])\d{1,7}\1\d{1,6}\1(\d|X)$"; Examples // Valid Console.WriteLine(Regex.IsMatch(@"ISBN 0 93028 923 4", @"ISBN\x20(?=.{13}$)\d{1,5}([- ])\d{1,7}\1\d{1,6}\1(\d|X)$
Paul Hayman - 11,639 viewsIP Address regular expression
IP Address regular expression string pattern = @"\b(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]?)\b"
Paul Hayman - 83,552 viewsEmail Address Regular Expression
Email Address Regular Expression string pattern = @"([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)"
Paul Hayman - 4,563 viewsMail and News Regular Expression
Mail and News Regular Expression string pattern = @"(?<ignore>(^|\s|\W)[\W*])?(?<uri>((mailto|news){1}:[^(//\s,)][\w\d:#@%/;$()~_?\+-=\\\.&]+))"
Paul Hayman - 3,717 viewsURL Regular Expression
URL Regular Expression string pattern = @"((https?|ftp|gopher|telnet|file|notes|ms-help):((//)|(\\\\))+[\w\d:#@%/;$()~_?\+-=\\\.&]*)"
Paul Hayman - 153,540 viewsIsGuid() (Regular Expression Guid Match)
IsGuid() (Regular Expression Guid Match) A regular expression for validating a string as being a Guid is.. @"^(\{{0,1}([0-9a-fA-F]){8}-([0-9a-fA-F]){4}-([0-9a-fA-F]){4}-([0-9a-fA-F]){4}-([0-9a-fA-F]){12}\}{0,1})$" Example usage Below is a function I try to keep handy which t
Paul Hayman - 99,012 views