using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^([0-3]($|\.)|4.(0|[0-9]($|\.))|4\.10\.190[0-3])";
string input = @"4.10.19041401
4.10.190
4.9
4.0.
4.9.
3
3.
30
^([0-3]|4.(0|([0-9]\.))|4\.10\.190[0-3])
";
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