public JsonTextReader(TextReader reader)
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
this._reader = new BufferedCharReader(reader);
this.Push(this.ParseMethod);
}
protected override JsonToken ReadTokenImpl()
{
if (this._stack == null)
{
return JsonToken.EOF();
}
if (this._stack.Count == 0)
{
this._stack = null;
this._reader = null;
return JsonToken.EOF();
}
return this.Pop()();
}
internal static StringBuilder Dequote(BufferedCharReader input, char quote, StringBuilder output)
{
char ch;
if (output == null)
{
output = new StringBuilder();
}
char[] hexDigits = null;
Label_000C:
ch = input.Next();
switch (ch)
{
case '\0':
case '\n':
case '\r':
throw new FormatException("Unterminated string.");
default:
if (ch != '\\')
{
if (ch == quote)
{
return output;
}
output.Append(ch);
goto Label_000C;
}
ch = input.Next();
switch (ch)
{
case 'r':
output.Append('\r');
goto Label_000C;
case 't':
output.Append('\t');
goto Label_000C;
case 'u':
if (hexDigits == null)
{
hexDigits = new char[4];
}
output.Append(ParseHex(input, hexDigits));
goto Label_000C;
case 'n':
output.Append('\n');
goto Label_000C;
case 'b':
output.Append('\b');
goto Label_000C;
case 'f':
output.Append('\f');
goto Label_000C;
}
break;
}
output.Append(ch);
goto Label_000C;
}
private static char ParseHex(BufferedCharReader input, char[] hexDigits)
{
hexDigits[0] = input.Next();
hexDigits[1] = input.Next();
hexDigits[2] = input.Next();
hexDigits[3] = input.Next();
return (char) ushort.Parse(new string(hexDigits), NumberStyles.HexNumber);
}
internal static string Dequote(BufferedCharReader input, char quote)
{
return Dequote(input, quote, null).ToString();
}
