C# regex to remove non - printable characters, and control characters, in a text that has a mix of many different languages, unicode letters

Question

i would appreciate your help on this, since i do not know which range of characters to use, or if there is a character class like [[:cntrl:]] that i have found in ruby?

Answer 1

You can try with :

string s = "Täkörgåsmrgås";
s = Regex.Replace(s, @"[^\u0000-\u007F]+", string.Empty);

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Updated answer after comments:

Documentation about non-printable character: https://en.wikipedia.org/wiki/Control_character

Char.IsControl Method:

https://msdn.microsoft.com/en-us/library/system.char.iscontrol.aspx

Maybe you can try:

string input; // this is your input string
string output = new string(input.Where(c => !char.IsControl(c)).ToArray());