using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^interface\b.*(?:\r?\n(?!=).*)*";
string input = @"======
interface And
public void and(int, int);
public void nand(int, int);
======
interface Or
public void or(int, int); public void nor(int, int);
======
interface Xor
public void xor(int, int); public void xnor(int, int);
======
interface Not
public void not(int);
======
class BitWise extends And, Or, Xor, Not
// Implementation of the Interfaces goes here
======
";
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