C# Regular Expression excluding a string

Question

I got a collection of string and all i want for regex is to collect all started with http..

href=\"http://www.test.com/cat/1-one_piece_episodes/\"href

Answer 1

Your input doesn't look like a valid string (unless you escape the quotes in them) but you can do it without regex too:

string input = "href=\"http://www.test.com/cat/1-one_piece_episodes/\"href=\"http://www.test.com/cat/2-movies_english_subbed/\"href=\"http://www.test.com/cat/3-english_dubbed/\"href=\"http://www.exclude.com\"";

List matches = new List();

foreach(var match in input.split(new string[]{"href"})) {
   if(!match.Contains("exclude.com"))
      matches.Add("href" + match);
}