Question

i want to match coordinates from a Browsergame.
My Regex is:

        try
        {
            Regex r = new Regex("Mond ([1-9]) \x5B([1-9]):([1-9][0-9]{0,2}):([1-9][0-9]{0,2})\x5D");
            Match m = r.Match("Mond 1 [1:1:1]");
        }
        catch (ArgumentException ex)
        {
            Console.WriteLine(ex);
        }

And the error is:

System.ArgumentException: “Mond ([1-9]) [([1-9]):([1-9][0-9]{0,2}):([1-9][0-9]{0,2})]” wird analysiert – Zu viele )-Zeichen.
bei System.Text.RegularExpressions.RegexParser.ScanRegex()
bei System.Text.RegularExpressions.RegexParser.Parse(String re, RegexOptions op)
bei System.Text.RegularExpressions.Regex..ctor(String pattern, RegexOptions options, Boolean useCache)
bei WindowsFormsApplication7.Form2.comboBox1_SelectedIndexChanged(Object sender, EventArgs e) in C:\Users\Heavyfan\Documents\Visual Studio 2008\Projects\WindowsFormsApplication7\WindowsFormsApplication7\Form2.cs:Zeile 27.
Eine Ausnahme (erste Chance) des Typs “System.ArgumentException” ist in System.dll aufgetreten.

What is the problem on my regex?

Sorry for my bad english.
Thx for resolutions.

Answer 1

I didn’t understand the error message, but it seems like an escaping problem – you haven’t escaped your backslashes. Change the regex to one of the following:

//verbatim 
Regex r = new Regex(@"Mond ([1-9]) \x5B([1-9]):([1-9][0-9]{0,2}):([1-9][0-9]{0,2})\x5D");

//or escaped
Regex r = new Regex("Mond ([1-9]) \\x5B([1-9]):([1-9][0-9]{0,2}):([1-9][0-9]{0,2})\\x5D");