using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @",(?:\s*#\d+)?\s*([^\s,][^,]*)(?=\W+[A-Z]{2}\W*\d{4,}\s*$)";
string input = @"6301 Stonewood Dr Apt-728, Plano TX-75024
13323 Maham Road, Apt # 1621, Dallas, TX 75240
17040 Carlson Drive, #1027 Parker, CO 80134";
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