C# Regex; Double Quote Issue

Question

I'm a little stumped here. I had this method, which was working fine until just recently:

internal static bool IsZplFormat(string szString)
{
    var regex = new Regex(@"\^XA.*\^XZ\\r\\n");
    return regex.IsMatch(szString);
}

That would work fine given the following string (taken from my unit test):

const string zplSample = "^XA blah blah blah ^XZ\r\n";

What appears to be happening now, is that I'm getting something like this:

const string zplSample = "^XA blah blah \"blah ^XZ\r\n";

And now my regex doesn't match anymore.

I thought the .* should match all characters, but it seems to be getting tripped up on that double quote. Any ideas on how I can get this working again?

Answer 1

Testing here...

string zplSample  = "^XA blah blah blah ^XZ\r\n";
string zplSample1 = "^XA blah blah \"blah ^XZ\r\n";

Console.WriteLine(new Regex(@"\^XA.*\^XZ\r\n").IsMatch(zplSample));
Console.WriteLine(new Regex(@"\^XA.*\^XZ\r\n").IsMatch(zplSample1));

Console.ReadKey();

Output

True
True

What did I change? The regex pattern to @"\^XA.*\^XZ\r\n". (From two backslashes to one) (\\r\\n)