从C＃中的字符串中提取文件路径或文件名

Question

Take following string as an input:

var input = @"The file is: ""c:\sampleDirectory\sample subdirectory\sampleFileName.txt\"" which is a text file";

How can I extract only the file path from the above string.
Using Regex or a similar approach is preferred.

Answer 1

Edited:

It can be done with LastIndexOf as answered by eocron.

But here is a regex solution :

Match match = Regex.Match(input, @"""(.*)\\(.*\..*)[\\]?""", RegexOptions.IgnoreCase);

if (match.Success)
{   
    string path = match.Groups[1].Value;
    string filename = match.Groups[2].value;
}

Answer 2

If your input patterns looks exactly like this, you could easily do this without Regex:

var magic1 = 14;//index of first quotation mark
var magic2 = 22;//suffix index of last quotation mark
var result = str.Substring(magic, str.Lenght-magic2-magic1);