C#

JSON Escape and Unescape a String

Demonstrates how to JSON escape or unescape a string. C#

Chilkat.StringBuilder sb = new Chilkat.StringBuilder();

sb.Append("backslash: \\\\, A: \\u0041");
Debug.WriteLine(sb.GetAsString());

//  The output is:
//     backslash: \\, A: \u0041

//  The keyword "json" can be used
//  to escape and unescape.  To escape is to encode.  To unescape is to decode.

//  Unescape (decode) the string in sb.
sb.Decode("json","utf-8");
Debug.WriteLine(sb.GetAsString());

//  After JSON unescaping:
//     backslash: \, A: A

//  Now JSON escape the string.
sb.Encode("json","utf-8");
Debug.WriteLine(sb.GetAsString());

//  After JSON escaping:
//     backslash: \\, A: A

//  Note: The "A" is not escaped to "\u0041" because there is no need.
//  The "\uXXXX" format would be produced for non-printable control chars.