using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(\/([0-9]+)?|([a-z]+)?\.jpg|jpeg|png|gif)";
string input = @"http://site234.com/folder/ar.txt
http://jtem.com/folder/s.zip
http://site.com/folder/ddr
http://sit23e1.ru/folder/eff.jpg
http://spbrecommender.com/folder/karo.gif
http://site.eu/folder/spb.pdf
http://site.com/folder/lego.jpeg
http://sir.fr/folder/some.jpg
http://site.com/folder/erro.exe
http://personel.com/folder/1.png";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx