using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^(.*;{1})";
string input = @"17:25:31;http://example1.com/viewtopic.php?f=8&t=189;example1.com;127.0.0.1 2013-10-19
17:22:32;http://example2.com;example2.com;127.0.0.1 2013-10-19
20:18:28;http://example3.com/threads/example-text-in-url.27304/;example3.com;127.0.0.1 2013-10-19";
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