Match with reges excluding string tags

Question

I am trying to write a code in order to get the matches in a list but without the match tags, until now i have built the following code in WP7 application written on C#

public static MatchCollection MatchTags(string content, string string_start, string string_end)
{
    MatchCollection matches = Regex.Matches(content, string_start + "(.*?)" + string_end, RegexOptions.IgnoreCase);
    return matches;
}

So how to return matches without string_start, string_end (match tags) without use of replace function after the match extraction?

Answer 1

Use lookarounds..

String.Format("(?<={0}).*?(?={1})",string_start,string_end);

---

Though you can also use groups.ie in your regex (.*?) would capture the content within Group 1. No need of lookarounds then..

MatchTags(content,start,end).Cast<Match>()
                            .Select(x=>x.Groups[1].Value);

Answer 2

当我得到下一个代码的结果时，它起作用：

string my_string_no_tags = matches[number].Groups[1].Value;

Answer 3

Consider the following code...

MatchCollection matches = Regex.Matches(content, string.Format("(?<={0}).*?(?={1})", string_start, string_end), RegexOptions.IgnoreCase);
return matches;

Good Luck!