Unescape JavaScript's escape() using C#

Question

Are the any functions in C# that handle escape/unescape like JavaScript?

I have a JSON string like this:

{\"Feeds\":[{\"Url\":\"www.test.com\",\"FeedTy

Answer 1

HttpUtility.UrlDecode should do the trick.

Answer 2

To unescape without having to reference System.Web in order to use HttpUtility, try this:

Str = Str.Replace("+", " ");
Str = Regex.Replace(Str, "%([A-Fa-f\\d]{2})", a => "" + Convert.ToChar(Convert.ToInt32(a.Groups[1].Value, 16)));

Also, when I tried HttpUtility.UrlDecode, it didn't work for special characters áéíóúñ.

Answer 3

    internal static string UnJavascriptEscape(string s)
    {
        // undo the effects of JavaScript's escape function
        return HttpUtility.UrlDecode(s.Replace("+", "%2b"), Encoding.Default);
    }

Answer 4

escape() is equivalent to

HttpUtility.UrlDecode(str, System.Text.Encoding.Default);

---

By default the UrlDecode uses UTF8 while escape() don't.

Answer 5

This is the best way I found to work with these:

Encode in C#:

System.Uri.EscapeDataString("<string>");

Decode in JavaScript:

decodeURI("<string>");

Encode in JavaScript:

encodeURI("<string>");

Decode in C#:

System.Uri.UnescapeDataString("<string>");

Update 27-Jan-2016: Just found what seems do be a more compatible way to do it, which also encodes the URI protocol (http://) using javascript:

Encode in JavaScript:

encodeURIComponent("<string>");

Decode in JavaScript:

decodeURIComponent("<string>");

Answer 6

Aw man, why do we over-think stuff so much sometimes. When an API function is being silly, send a karma cuss at the library developer, then work-around it...

HttpUtility.UrlEncode(editext, System.Text.Encoding.Default).Replace("+","%20");