C# razor regex replace some occurrences of dot with 1/6 emspace

Question

in a string whenever the following occurs

~A.~ ( tilde, then any single upper case letter, then dot, then tilde)

I want to replace the 'dot' with a 1/6 em space. I have tried several things including this but its not doing what I want

text = Regex.Replace(text, @"/(~)([A-Z])(.~)/g", "$1$2&8198;~");

Answer 1

Just use

~([A-Z])\.~

And replace this with

~$1\u2006~

The unicode spaces can be found here , the appropriate replacement is sth. like \ሴ567889 .

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As a whole snippet:

 using System; using System.Text.RegularExpressions; public class Test { public static void Main() { string txt = "~A.~ ( tilde, then any single upper case letter, then dot, then tilde)"; string pattern = "~([AZ])\\\\.~"; string replacement = "~$1\ ~"; Regex rx = new Regex(pattern); string result = rx.Replace(txt, replacement); Console.WriteLine("Replacement String: {0}", result); } } 

See a demo on ideone.com .