public static JsonToken Parse(JsonReaderBuffer buffer, JsonTokenType textOrProperty)
{
char character;
bool escaped = false;
int start = buffer.Offset + 1;
int length = 0;
Action forward = () =>
{
ForwardOrThrow(buffer, true);
length++;
};
ForwardOrThrow(buffer, true);
while (buffer.Data[buffer.Offset] != '"')
{
if (buffer.Data[buffer.Offset] != '\\')
{
forward();
continue;
}
escaped = true;
forward();
character = buffer.Data[buffer.Offset];
switch (character)
{
case 'n':
case 't':
case 'r':
case 'b':
case 'f':
case '/':
case '\\':
case '\"':
forward();
continue;
}
if (character != 'u')
throw new JsonReaderSyntaxException();
for (int i = 0; i < 4; i++)
{
forward();
character = buffer.Data[buffer.Offset];
if ('0' <= character && character <= '9')
continue;
if ('a' <= character && character <= 'f')
continue;
throw new JsonReaderSyntaxException();
}
forward();
continue;
}
buffer.Forward(true);
if (escaped)
return new EscapingToken(textOrProperty, buffer.Data, start, length);
return new DataToken(textOrProperty, buffer.Data, start, length);
}
private static void ForwardOrThrow(JsonReaderBuffer buffer, bool consistent)
{
if (buffer.Forward(consistent) == false)
throw new JsonReaderStreamException();
}
public static JsonToken Parse(JsonReaderBuffer buffer)
{
bool isReal = false;
bool isNegative = false;
bool isScientific = false;
int start = buffer.Offset;
int length = 0;
Action forward = () =>
{
if (buffer.Forward(true) == false)
throw new JsonReaderStreamException();
length++;
};
Func<bool> tryForward = () =>
{
length++;
return buffer.Forward(true);
};
if (buffer.Data[buffer.Offset] == '-')
{
isNegative = true;
forward();
}
if (buffer.Data[buffer.Offset] == '0')
{
tryForward();
}
else if (Char.IsDigit(buffer.Data[buffer.Offset]))
{
while (Char.IsDigit(buffer.Data[buffer.Offset]))
if (tryForward() == false)
break;
}
else
throw new JsonReaderSyntaxException();
if (buffer.Ensure(true))
{
if (buffer.Data[buffer.Offset] == '.')
{
forward();
isReal = true;
if (Char.IsDigit(buffer.Data[buffer.Offset]) == false)
throw new JsonReaderSyntaxException();
while (Char.IsDigit(buffer.Data[buffer.Offset]))
if (tryForward() == false)
break;
}
if (buffer.Ensure(true))
{
if (buffer.Data[buffer.Offset] == 'e' ||
buffer.Data[buffer.Offset] == 'E')
{
forward();
isScientific = true;
if (buffer.Data[buffer.Offset] == '-' ||
buffer.Data[buffer.Offset] == '+')
{
forward();
}
while (Char.IsDigit(buffer.Data[buffer.Offset]))
if (tryForward() == false)
break;
}
}
}
if (length == 0)
throw new JsonReaderSyntaxException();
return new DataToken(JsonTokenType.Number, buffer.Data, start, length);
}
