using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?(DEFINE)(?<Digit>one|two|three|four|five|six|seven|eight|nine))(?(DEFINE)(?<Teen>twenty|thirty|forty|fifty|sixty|seventy|eighty|ninety))(?(DEFINE)(?<TwoDigits>((?&Teen)-)?(?&Digit)|ten|eleven|twelve|thirteen|fourteen|fifteen|sixteen|seventeen|eighteen|nineteen|(?&Teen)))(?(DEFINE)(?<ThreeDigits>((?&Digit) hundred (and )?)?(?&TwoDigits)|(?&Digit) hundred))(?(DEFINE)(?<SixDigits>((?&ThreeDigits) thousand (and )?)?(?&ThreeDigits)|(?&ThreeDigits) thousand))(?(DEFINE)(?<TwelveDigits>((?&SixDigits) million (and )?)?(?&SixDigits)|(?&SixDigits) million))(?&TwelveDigits)";
string input = @"three
eleven
eighty-two
four hundred sixty-nine
";
foreach (Match m in Regex.Matches(input, pattern))
{
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