using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^(?!\s*$)\s*(?:(\d+)\s*h\s*)?(?:(\d+)\s*m\s*)?(?:(\d+)\s*s)?\s*$";
string input = @"11h22m33s
11h22m
11h33s
22m33s
11h
22m
33s
11 h22 m 33 s
11 h22 m
11 h 33 s
22 m 33 s";
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