using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?<=\n|\A)(?:public\s)?(class|interface|enum)\s([^\n\s]*)";
string input = @"/**
*
* @author XXXX
* Introduction: A common interface that judges all kinds of algorithm tags.
* some other comment
*/
public class TagMatchingInterface
{
// content
public class InnerClazz{
// content
}
}";
RegexOptions options = RegexOptions.Singleline | RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace;
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