using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^(?=.*status[:=](\S+)|)(?=.*type[:=](\S+)|)(?:.*?title[:=])?(?|""([^""\n]+)""|((?:(?!\s?(?:type|status)).)+))[^""\n]*$";
string substitution = @"";
string input = @"stack overflow
""stackoverflow""
title=""stack overflow""
type:image title=stack overflow
stackoverflow type:image
status:closed type:image title:stack overflow
title=""stack overflow"" type:joy
title:you should totally drop regex and try jquery type:joke";
RegexOptions options = RegexOptions.Multiline;
Regex regex = new Regex(pattern, options);
string result = regex.Replace(input, substitution);
}
}
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