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"Be careful when opening or creating files by using Scripting File System Object. If the filename is based on the user's input, the user might attempt to open a serial port or printer."

Matches HTML image leaf filenames.

Just a simple regExp to parse the stack trace. Developed when using the exception block from MS, coz they only showed the stack all bunched together. Could be used as follows: [C#] string regExParams = @"(at\s)(?<fullClassName>.+)(\.)(?<methodName>[^\.]*)(\()(?<parameters>[^\)]*)(\))((\sin\s)(?<fileName>.+)(:line )(?<lineNumber>[\d]*))?"; Regex re = new System.Text.RegularExpressions.Regex(regExParams,RegexOptions.Compiled); MatchCollection mtc; mtc = re.Matches(System.Environment.StackTrace); foreach(Match mt in mtc) { MessageBox.Show(mt.Result("${fullClassName}")); MessageBox.Show(mt.Result("${methodName}")); MessageBox.Show(mt.Result("${parameters}")); MessageBox.Show(mt.Result("${fileName}")); MessageBox.Show(mt.Result("${lineNumber}")); } Seems to work well, but use at your own peril!! Feel free to use and enhance (there's probably a lot that could be done, like getting parameters individually(?), etc)

Matches filenames. UPDATED on 1st Jan 2004.

this is a very little regex for use within a content management software. links within textfields has not to be written in html. the editor of the cms is instructed to use it like this: 1. mention spaces in front and behind the url 2. start url with http://, mailto://, ftp:// ... 3. use optional linktext within #linktext# (separated with single space) 4. if there is no linktext the url/email will show up as linktext 5. avoid url with spaces in filename (use %20 urldecode) replace pattern (space in front): <a href="\\1\\3\\4" target="_blank">\\3\\6</a>

This RegEx can be used to varify (esp. when receiving data from forms) filenames. No Path is allowed. German Special Characters are allowed.

Validates a long filename using Windows' rules. Requires one valid filename character other than "." for the first character and then any number of valid filename characters up to a total length of 255 characters. Unresolved is how to prevent the last character from being a "." while still meeting all the features that this regex does now.

Used to match windows filenames. Fails if there is leading or trailing spaces. Fails if the input contains /\:*?"<>| . Fails if the input begins or ends with '.'

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

WINDOWS ONLY Useful to get the filename whenever you get it from anysource, recommended for non-critical filename-dependant applications.

Matches a file name to be either a .wma or .mp3 file. This can be used to check file uploads to make sure they are of a certain type. Substitute letters where appropriate for specific file types. This is a better solution (I think) than #343. Works in Javascript and C#.

Nice for checking local filesystem relative pathing. I used it for testing in php scripts that work with images.

a simplistic path/filename for windows (more restrictive than for Mac OS or *nix). Updated escaping, end of string.

Will match a Windows filename containing alphanumerics, hyphens (-) and underscores (_). There is no length limit on the first part of the filename, but the extension must be between 1 and 3 characters.

Matches valid Windows filenames using local, network and UNC formats.

matches all rapidshare.com links /files / 8 numbers / filename

Matches URI's! "filename.ext" is part of path. ER can't differ file name from directory name. only domain is required. scheme://usern:passw@domain:port/path/file.ext?querystring#fragment

This expression was written for C#, and as such you should just be able to drop it in. It matches Windows paths, be they the drive letter version or the UNC version. It was not written to specifically match filenames, but it will in most cases anyway. Be aware that Windows has a maximum path+filename length (260 chars on XP) and this regular expression does not check for this. This has been tested against large datasets.

This was written for C# and so you should just be able to drop it into your C# program. Although you can create files with leading and trailing spaces through non-GUI means, the Windows GUI itself eats those spaces if you try to rename the file. For this reason I made the decision to consider file names with leading and trailing spaces invalid. This has been tested against large data sets.

Validate Filename,PageName,ImageName etc such as filename.doc filename.xls pagename.aspx pagename.asp pagename.htm pagename.html Extensions etc ...