private void SkipWhitespace()
{
while (Utf8String.IsWhiteSpace(_values[_valuesIndex]))
{
_valuesIndex++;
}
}
private void SkipEmpty()
{
var nextByte = (byte)_str[_index];
while (Utf8String.IsWhiteSpace(nextByte))
{
_index++;
nextByte = (byte)_str[_index];
}
}
public JsonDb.JsonValueType GetJsonDb.JsonValueType()
{
var nextByte = (byte)_str[_index];
while (Utf8String.IsWhiteSpace(nextByte))
{
_index++;
nextByte = (byte)_str[_index];
}
if (nextByte == '"')
{
return(JsonDb.JsonValueType.String);
}
if (nextByte == '{')
{
return(JsonDb.JsonValueType.Object);
}
if (nextByte == '[')
{
return(JsonDb.JsonValueType.Array);
}
if (nextByte == 't')
{
return(JsonDb.JsonValueType.True);
}
if (nextByte == 'f')
{
return(JsonDb.JsonValueType.False);
}
if (nextByte == 'n')
{
return(JsonDb.JsonValueType.Null);
}
if (nextByte == '-' || (nextByte >= '0' && nextByte <= '9'))
{
return(JsonDb.JsonValueType.Number);
}
throw new FormatException("Invalid json, tried to read char '" + nextByte + "'.");
}
public JsonParser(byte[] buffer, int lengthOfJson)
{
_buffer = buffer;
_insideObject = 0;
_insideArray = 0;
TokenType = 0;
_index = 0;
_end = lengthOfJson;
var nextByte = _buffer[_index];
while (Utf8String.IsWhiteSpace(nextByte) || nextByte == 0)
{
_index++;
nextByte = _buffer[_index];
}
_dbIndex = _end + 1;
_jsonStartIsObject = _buffer[_index] == '{';
}
private void MoveToNextTokenType()
{
var nextByte = (byte)_str[_index];
while (Utf8String.IsWhiteSpace(nextByte))
{
_index++;
nextByte = (byte)_str[_index];
}
switch (TokenType)
{
case JsonTokenType.ObjectStart:
if (nextByte != '}')
{
TokenType = JsonTokenType.Property;
return;
}
break;
case JsonTokenType.ObjectEnd:
if (nextByte == ',')
{
_index++;
if (_insideObject == _insideArray)
{
TokenType = !_jsonStartIsObject ? JsonTokenType.Property : JsonTokenType.Value;
return;
}
TokenType = _insideObject > _insideArray ? JsonTokenType.Property : JsonTokenType.Value;
return;
}
break;
case JsonTokenType.ArrayStart:
if (nextByte != ']')
{
TokenType = JsonTokenType.Value;
return;
}
break;
case JsonTokenType.ArrayEnd:
if (nextByte == ',')
{
_index++;
if (_insideObject == _insideArray)
{
TokenType = !_jsonStartIsObject ? JsonTokenType.Property : JsonTokenType.Value;
return;
}
TokenType = _insideObject > _insideArray ? JsonTokenType.Property : JsonTokenType.Value;
return;
}
break;
case JsonTokenType.Property:
if (nextByte == ',')
{
_index++;
return;
}
break;
case JsonTokenType.Value:
if (nextByte == ',')
{
_index++;
return;
}
break;
}
_index++;
switch (nextByte)
{
case (byte)'{':
_insideObject++;
TokenType = JsonTokenType.ObjectStart;
return;
case (byte)'}':
_insideObject--;
TokenType = JsonTokenType.ObjectEnd;
return;
case (byte)'[':
_insideArray++;
TokenType = JsonTokenType.ArrayStart;
return;
case (byte)']':
_insideArray--;
TokenType = JsonTokenType.ArrayEnd;
return;
default:
throw new FormatException("Unable to get next token type. Check json format.");
}
}
