Validate a URL using regular expressions

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Validate a URL using regular expressions(madskristensen.dk)

submitted by madskristensen(8565) 5 years, 3 months ago

Today, I had to build web form that took user input from standard ASP.NET input controls. In one of the text boxes the user must to enter a valid URL, so I had to make some validation logic. But first of all, I had to find out what kind of URL’s we would accept as being valid. Based on those rules, I wrote these regular expressions

1 comment |category: C# |Views: 12
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posted by phayman(3550) 5 years, 3 months ago 0

Another one :
string pattern = @"((https?|ftp|gopher|telnet|file|notes|ms-help):((//)|(\\\\))+[\w\d:#@%/;$()~_?\+-=\\\.&]*)"

Source : http://www.geekzilla.co.uk/View2D3B0109-C1B2-4B4E-BFFD-E8088CBC85FD.htm

Also, Mail and News :
string pattern = @"(?<ignore>(^|\s|\W)[\W*])?(?<uri>((mailto|news){1}:[^(//\s,)][\w\d:#@%/;$()~_?\+-=\\\.&]+))"

Source : http://www.geekzilla.co.uk/View4FE04F67-31D8-4A4C-A627-EB6EB5A3519C.htm

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