using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^\d{1,3}(?:,\d{1,3}){0,3}(?: ; \d{1,3}(?:,\d{1,3}){0,3})*$";
string input = @"10
10,10 ; 5,5
10,11,12,13 ; 20,30 ; 50
10 ,
10,10,999 ; 10,10 ,;
10,10 ; , 10;10,10
10 ;; 10";
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