using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^([^0-9]*\b(([1-9]|1[0-9]|22|2[4-9]|[3-9][0-9]|1[0-2][0-9]|13[0-6]|1[4-9][0-9]|[2-9][0-9][0-8]|[1-9][0-9]{3}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5])\b[^0-9]*)*$)";
string input = @"56;45;5623;67;21;68
45;568;56564;68;254;136
8080;8958;368;65;80;443;22
8080;22;140
139;852;21;80
65;80;135
65;139
54;98;35;65;2 ;45
";
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