What is the name of the function, which does the opposite to HttpUtility.JavaScriptStringEncode?

Question

I need to evaluate escape sequences on the string. To escape the string, HttpUtility.JavaScriptStringEncode or something similar was used. How do I do the opposite transformation?

Here's an example:

        var s = @"otehu""oeuhnoa
        oaehu
        oatehu
        oeu";
        var t = HttpUtility.JavaScriptStringEncode(s);
        var n = Decode(t);

i need such function Decode, which would make n == s;

Answer 1

I found this function posted on another forum:

public static string JavaScriptStringDecode(string source)
{
    // Replace some chars.
    var decoded = source.Replace(@"\'", "'")
                .Replace(@"\""", @"""")
                .Replace(@"\/", "/")
                .Replace(@"\\", @"\")
                .Replace(@"\t", "\t")
                .Replace(@"\n", "\n");

    // Replace unicode escaped text.
    var rx = new Regex(@"\\[uU]([0-9A-F]{4})");

    decoded = rx.Replace(decoded, match => ((char)Int32.Parse(match.Value.Substring(2), NumberStyles.HexNumber))
                                            .ToString(CultureInfo.InvariantCulture));

    return decoded;
}

And it worked for me