// throws! only way to report an error
public static IEnumerable <JToken> ParseToken(string s, JToken.ParseOptions flags = JToken.ParseOptions.None, int maxstringlen = 16384)
{
using (StringReader sr = new StringReader(s)) // read directly from file..
{
var parser = new StringParserQuickTextReader(sr, 16384);
return(ParseToken(parser, flags, maxstringlen));
}
}
public static IEnumerable <JToken> ParseToken(IStringParserQuick parser, JToken.ParseOptions flags = JToken.ParseOptions.None, int maxstringlen = 16384)
{
var res = ParseTokenInt(parser, flags, maxstringlen);
if ((flags & ParseOptions.CheckEOL) != 0 && !parser.IsEOL())
{
throw new TokenException(GenErrorString(parser, "Extra Chars after JSON"));
}
return(res);
}
public static JArray JSONParseArray(this string s, JToken.ParseOptions opt = JToken.ParseOptions.None)
{
if (s != null)
{
return(JArray.Parse(s, opt));
}
else
{
return(null);
}
}
public static JObject JSONParseObject(this string s, JToken.ParseOptions opt = JToken.ParseOptions.None)
{
if (s != null)
{
return(JObject.Parse(s, opt));
}
else
{
return(null);
}
}
private static IEnumerable <JToken> ParseTokenInt(IStringParserQuick parser, JToken.ParseOptions flags = JToken.ParseOptions.None, int maxstringlen = 16384)
{
char[] textbuffer = new char[maxstringlen];
JToken[] stack = new JToken[256];
int sptr = 0;
bool comma = false;
JArray curarray = null;
JObject curobject = null;
{
parser.SkipSpace();
JToken o = DecodeValue(parser, textbuffer, false); // grab new value, not array end
if (o == null)
{
throw new TokenException(GenErrorString(parser, "No Obj/Array"));
}
else if (o.TokenType == JToken.TType.Array)
{
stack[++sptr] = o; // push this one onto stack
curarray = o as JArray; // this is now the current array
yield return(o);
}
else if (o.TokenType == JToken.TType.Object)
{
stack[++sptr] = o; // push this one onto stack
curobject = o as JObject; // this is now the current object
yield return(o);
}
else
{
yield return(o); // value only
yield break;
}
}
while (true)
{
if (curobject != null) // if object..
{
while (true)
{
char next = parser.GetChar();
if (next == '}') // end object
{
parser.SkipSpace();
if (comma == true && (flags & JToken.ParseOptions.AllowTrailingCommas) == 0)
{
throw new TokenException(GenErrorString(parser, "Comma"));
}
else
{
yield return(new JToken(JToken.TType.EndObject));
JToken prevtoken = stack[--sptr];
if (prevtoken == null) // if popped stack is null, we are back to beginning, return this
{
yield break;
}
else
{
comma = parser.IsCharMoveOn(',');
curobject = prevtoken as JObject;
if (curobject == null)
{
curarray = prevtoken as JArray;
break;
}
}
}
}
else if (next == '"') // property name
{
int textlen = parser.NextQuotedString(next, textbuffer, true);
if (textlen < 1 || (comma == false && curobject.Count > 0) || !parser.IsCharMoveOn(':'))
{
throw new TokenException(GenErrorString(parser, "Object missing property name"));
}
else
{
string name = new string(textbuffer, 0, textlen);
JToken o = DecodeValue(parser, textbuffer, false); // get value
if (o == null)
{
throw new TokenException(GenErrorString(parser, "Object bad value"));
}
o.Name = name;
yield return(o);
if (o.TokenType == JToken.TType.Array) // if array, we need to change to this as controlling object on top of stack
{
if (sptr == stack.Length - 1)
{
throw new TokenException(GenErrorString(parser, "Stack overflow"));
}
stack[++sptr] = o; // push this one onto stack
curarray = o as JArray; // this is now the current object
curobject = null;
comma = false;
break;
}
else if (o.TokenType == JToken.TType.Object) // if object, this is the controlling object
{
if (sptr == stack.Length - 1)
{
throw new TokenException(GenErrorString(parser, "Stack overflow"));
}
stack[++sptr] = o; // push this one onto stack
curobject = o as JObject; // this is now the current object
comma = false;
}
else
{
comma = parser.IsCharMoveOn(',');
}
}
}
else
{
throw new TokenException(GenErrorString(parser, "Bad format in object"));
}
}
}
else
{
while (true)
{
JToken o = DecodeValue(parser, textbuffer, true); // grab new value
if (o == null)
{
throw new TokenException(GenErrorString(parser, "Bad array value"));
}
else if (o.TokenType == JToken.TType.EndArray) // if end marker, jump back
{
if (comma == true && (flags & JToken.ParseOptions.AllowTrailingCommas) == 0)
{
throw new TokenException(GenErrorString(parser, "Comma"));
}
else
{
yield return(new JToken(JToken.TType.EndArray));
JToken prevtoken = stack[--sptr];
if (prevtoken == null) // if popped stack is null, we are back to beginning, return this
{
yield break;
}
else
{
comma = parser.IsCharMoveOn(',');
curobject = prevtoken as JObject;
if (curobject == null)
{
curarray = prevtoken as JArray;
}
else
{
break;
}
}
}
}
else if ((comma == false && curarray.Count > 0)) // missing comma
{
throw new TokenException(GenErrorString(parser, "Comma"));
}
else
{
yield return(o);
if (o.TokenType == JToken.TType.Array) // if array, we need to change to this as controlling object on top of stack
{
if (sptr == stack.Length - 1)
{
throw new TokenException(GenErrorString(parser, "Stack overflow"));
}
stack[++sptr] = o; // push this one onto stack
curarray = o as JArray; // this is now the current array
comma = false;
}
else if (o.TokenType == JToken.TType.Object) // if object, this is the controlling object
{
if (sptr == stack.Length - 1)
{
throw new TokenException(GenErrorString(parser, "Stack overflow"));
}
stack[++sptr] = o; // push this one onto stack
curobject = o as JObject; // this is now the current object
curarray = null;
comma = false;
break;
}
else
{
comma = parser.IsCharMoveOn(',');
}
}
}
}
}
}
public static IEnumerable <JToken> ParseToken(TextReader tr, JToken.ParseOptions flags = JToken.ParseOptions.None, int maxstringlen = 16384)
{
var parser = new StringParserQuickTextReader(tr, 16384);
return(ParseToken(parser, flags, maxstringlen));
}
