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Use in a .net Regex.Split() to pull the protocol out of a url into the first array entry.

I needed a regular expression to break urls into labled parts. This is what I came up with. Got a few ideas from regexlib.com and from this msdn article. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/reconbackreferences.asp http://www.domain.com/folder does return a match but will not grab the folder name unless there is "/" at the end. http://www.domain.com/folder/

A simple url search pattern that works against the most generic cases. A little better in terms of matches than the other URL expressions listed.

will match free floating valid protocol + urls in text ... will not touch the ones wrapped in a tag, so that you can auto-link the ones that aren't :) couple of things to know : 1. if the url is next to a tag this won't work (eg : <br>http://www.acme.com), the url must either start with a \s, \n or any character other than >. 2. the pattern will match the preceding \s and \n too, so when you replace put them back in place $1 will either be \s or \n, $2 will be the exact match vb usage : set re = New RegExp re.Pattern ="(\s|\n|^)(\w+://[^\s\n]+)" strResult = re.Replace(strText, "$1<a href='$2' target='_new'>$2</a>")

Cheap and cheerful URL checker. Requires a http/https/ftp at the start and will then allow anything starting with at least a <something>.<something>.<something> then valid characters separated by dots and slashes

Matches URLS that start with numbers and any TLD that is 2 to 6 characters long. Matches most URLs. Thanks to eveyone for suggesting modifications! UPDATES::[Nov. 11, 2005] Now it matches uppercase and lower case protocols. Updates::December 3, 2005 Added restriction to ports since they will only go up to 65535. (Thanks lorello) Keep the suggestions coming! Thanks for the heads up!!

Simple URL Validator -- allows http, https, ftp, ftps, 2-6 letter TLD, ports, any path. Sorry, no IP addresses. Not too fussy, but then, it's not too long either ;-)

This expression matches valid image URLs. The main use for this would be in UBBC tags. Written by RyanJ and Jick for FWD (http://flexwebdev.thenamesdan.com/)

Suitable for extraction of all hyperlinks in the format: <a ... href="..." ...> some text </a> from a text document. Separates in groups the components of the links (url and body).

I wrote this after I couldn't find an expression that would search for valid URLs, whether they had HTTP in front or not. This will find those that don't have hyphens anywhere in them (except for after the domain).

This pattern can be used for validating a string as a valid element name (e.g. variable or class name) in Microsoft .NET. See also http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcn7/html/vbconelementnames.asp

v2 A general purpose expresion to find url's (improved). Add heads to first part, example: ((imap:|(ht|f)tp(s?):\/\/)|(www\. to find url's like imap://www.com/, so ip's. No ipv6 (yet)

This will find URLs in plain text. With or without protocol. It matches against all toplevel domains to find the URL in the text.

finds the url and url description for all links in a given text.

Url matching

Hopefully an all-encompassing expression to validate a URL. Supports an optional protocol, either a domain or IP address, an optional port number and an optional path.

this regex eleminates all parameters from a html querry e.g. param1=hans&param2=5&badparam=5 so bad param will be deleted from the params given. its usefull to clean up urls from unwanted params you not allow befor using the query string for further issues.

You can use this regular expression in your PHP scripts to convert entered URL in text to URL link. Example: $text=ereg_replace("(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&%_\./-~-]*)?","<a href=\"./redir.php?url=\\0\" target=\"_blank\">\\0</a>",$text);

a simple url validation

Matches a URL string by: protocol,subdomain,domain,ip address,port number,path and/or filename