如何计算由ASP.Net MVC中的正则表达式捕获的匹配数？

Question

I'm having a problem counting the number of matches captured by the regex because it doesn't have a count function.

Here is my code:

 var pathRegex = new Regex(".+?\\:\\/\\/.+? (\\/.+?)(?:#|\\?|$)");
 var result = pathRegex.Match(url);
            if (!(result.Success))
            {
                pathRegex = new Regex("/\\/.*/");
                result = pathRegex.Match(url);

                if (result.Success && result.Length == 1)
                {
                    return result.Value;
                }else
                {
                    return "";
                } 
            }

I've tried result.Length but it only counts the length of the string that has a match. Do you have any suggestions or workaround on this?

Answer 1

MatchCollection matches = pathRegex.Matches(url);
var count = matches.Count;

Regex Class

Answer 2

Regex.Match only returns the first occurrence as a single Match object. Ref . Therefore, it Count is not available and if (result.Success) is sufficient for your case.

If you want multiple matches you need Regex.Matches which returns a MatchCollection.