public static string PercentDecode(this string me)
{
Text.Builder result = null;
if (me.NotNull())
{
Generic.IEnumerator <char> enumerator = me.GetEnumerator();
while (enumerator.MoveNext())
{
if (enumerator.Current == '%')
{
char[] characters = new char[] { enumerator.Next(), enumerator.Next() };
byte value;
if (byte.TryParse(new string(characters), System.Globalization.NumberStyles.HexNumber, System.Globalization.NumberFormatInfo.InvariantInfo, out value))
{
result += System.Text.Encoding.ASCII.GetChars(new byte[] { value });
}
else
{
result += "%" + characters;
}
}
else
{
result += enumerator.Current;
}
}
}
return(result);
}
public static IAsyncEnumerator <T> Create <T>(Generic.IEnumerator <T> enumerator)
{
return(enumerator.NotNull() ? AsyncEnumerator.Create(() => Tasks.Task.FromResult(enumerator.Next()), enumerator) : AsyncEnumerator.Empty <T>());
}
public static Generic.IEnumerator <T> Create <T>(Generic.IEnumerator <T> enumerator)
{
return(enumerator.NotNull() ? Enumerator.Create(() => enumerator.Next(), enumerator.Reset, enumerator.Dispose) : Enumerator.Empty <T>());
}