using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^[^\d]*?(\+?\d\d)?(?:[^\d]*?0)?(?:[^\d]*?([1-9]))((?:[^\d]*?\d\d){4})$";
string input = @"0674420606
06 74 42 06 06
06/74/42/06/06
06-74-42-06-06
06.74.42.06.06
+33674420606
+330674420606
+33 6 74 42 06 06
(+33)674420606
(+33) 674420606
+33 0674420606
// ^[^\d]*?(\+?\d\d)?(?:[^\d]*?0)?(?:[^\d]*?([1-9]))((?:[^\d]*?\d\d){4})$
// [^\d+]
// ^[^\d]?(\+?\d\d)?0?([1-9])((?:\d\d){4})$
// ^\+?\+?\d\d?0?[1-9](?:\d\d){4}$";
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