How to treat ASCII code as a string rather than it's character-CodePudding

When checking a string that contains an ASCII code e.g. ABC\x30XYZ, how can I read it as exactly that full string, rather than reading it as the string ABC0XYZ?

For example:

var value = "ABC\x30XYZ";
foreach(var c in value)
{
    Console.Write(c);
} 
// Desired output: ABC\x30XYZ
// Actual output: ABC0XYZ

I'm guessing I need to do something with Encoding but I'm struggling to find the solution. I feel like I'm missing something really obvious and am prepared to hang my head in shame when someone points this out.

CodePudding user response：

If you create the string yourself, you need to escape "\x30" ASCII notation for it to be treated as a string:

var value = "ABC\\x30XYZ";

If you want to parse ASCII codes out of an input string, you could use regex parsing like:

 var value = "ABC\\x30XYZ";
 var values = Regex.Matches(value, @"\\x[\d]{2}|.");
 foreach (var c in values)
 {
    Console.Write(c);
 }

Use an appropriate regex based on the input format you expect.