using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(1234[\w ]+(Word \w+))((?:(?!1234).)*)";
string input = @"1234_This is a text Word AB
Protocol Address ping
Internet 1.1.1.1 -
Internet 1.1.1.2 25
Internet 1.1.1.3 8
Internet 1.1.1.4 -
1234_This is a text Word BCD
Protocol Address ping
Internet 2.2.2.1 10
Internet 2.2.2.2 - ";
RegexOptions options = RegexOptions.Singleline;
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