using System;
using System.Text.RegularExpressions;
namespace RegExApplication
{
public class Program
{
public static void Main(string[] args)
{
var pattern = "<<.*?FirstName.*?>>";
var template = "<<FirstName>> <<FirstName>>";
var replaceWith = "FOO";
var regex = new Regex(pattern);
Console.WriteLine(regex.Replace(template, replaceWith));
}
}
}
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