C# Regex to match any character next to a specified substring but ignoring newline/tab character

Question

I want to match the character next to the word "Test" but if that next character is a newline \\n character I need to get the character next to the newline charactger instead. In the following input string my desired output is character C and w . But I'm getting \\n and w instead:

string str = "This abcTest\nCde and qrvTestwest is an input";
foreach (Match mt in Regex.Matches(str, @"(?<=Test)(.)",RegexOptions.Singleline))
    Console.WriteLine(mt.Groups[1].Value);

Answer 1

Try this:

Test[\n]*(.)

It will skip over any number of newlines.

Answer 2

The regex for what you're asking is:

Test[\n](.)|Test(.)

You need to check both cases Test\\n and Test(.).

Check a working regex of this: https://regex101.com/r/mI2tE5/1

For the comments this works better:

Test[\n]*(.)