Question

I have regular expression like this:

“error 1|error 2|error 3|error 4|error 5”
about 80 (can be more) miscelanous error messages

Now I check if in my text error message exists:

Regex errorRegex = new Regex("error 1|error 2|error 3|error 4|error 5");
if (errorRegex.Match(content).Success)
          return "ERROR";

But now I need return which message was in content for example “error 4” Can I do this in one match? What is the best way (optimized for performance) to do this?

Answer 1

Try this by keep a temporary variable of type Match:

Regex errorRegex = new Regex("error 1|error 2|error 3|error 4|error 5");
Match match = errorRegex.Match(content);
if (match.Success)
          return match.Value;