Replacing bad characters of a String with bad characters

Question

I just wondered what\'s the easiest way to replace a string characters that must be replaced subsequently.

For example:

var str = \"[Hello World]\";         


        

Answer 1

I had the exact same problem, so I made a helper function to do just that

    protected string ReplaceUsingDictionary(string subject, Dictionary pairs)
    {
        StringBuilder sb = new StringBuilder(subject);

        sb.Replace("{", "{{").Replace("}", "}}");

        int i=0;
        foreach (string key in pairs.Keys.ToArray())
        {
            sb.Replace(
                key.Replace("{", "{{").Replace("}", "}}"), 
                "{" + i + "}"
            );

            i++;
        }

        return string.Format(sb.ToString(), pairs.Values.ToArray());
    }

// usage
Dictionary replacements = new Dictionary();
replacements["["] = "[[]";
replacements["]"] = "[]]";

string mystr = ReplaceWithDictionary("[HelloWorld]", replacements); // returns [[]HelloWorld[]]