/// <summary>
/// Encodes a URL, like System.Web.HttpUtility.UrlEncode
/// </summary>
/// <returns>The decoded URL</returns>
/// <param name="url">The URL fragment to decode</param>
/// <param name="encoding">The encoding to use</param>
public static string UrlDecode(string value, System.Text.Encoding encoding = null)
{
if (value == null)
throw new ArgumentNullException("value");
encoding = encoding ?? System.Text.Encoding.UTF8;
var decoder = encoding.GetDecoder();
var inbuf = new byte[2];
var outbuf = new char[1];
return RE_NUMBER.Replace(value, (m) => {
if (m.Value == "+")
return " ";
try
{
var hex = m.Groups["number"].Value;
Utility.HexStringAsByteArray(hex, inbuf);
decoder.GetChars(inbuf, 0, hex.Length / 2, outbuf, 0);
return outbuf[0].ToString();
}
catch
{
}
//Fallback
return m.Value;
});
}
private static string ConvertEncoding(string value, System.Text.Encoding src, System.Text.Encoding trg)
{
System.Text.Decoder decoder = src.GetDecoder();
byte[] bytes = trg.GetBytes(value);
char[] chars = new char[decoder.GetCharCount(bytes, 0, bytes.Length)];
decoder.GetChars(bytes, 0, bytes.Length, chars, 0);
return new string(chars);
}
