internal static JSONNode Parse(JSONParseData aJSON, bool receipt = false)
{
using (var parser = new Parser())
return(parser.Parse(aJSON, receipt));
}
public JSONNode Parse(JSONParseData aJSON, bool receipt = false)
{
bool quoteMode = false;
char quoteSymbol = (char)0;
_stack.Clear();
_ctx = new NodeState();
CleanToken();
int i = 0;
while (i < aJSON.Length)
{
var curChar = aJSON.GetChar(i);
switch (curChar)
{
case '{':
if (quoteMode)
{
goto default;
}
AddCollection(new JSONClass(false));
break;
case '[':
if (quoteMode)
{
goto default;
}
AddCollection(new JSONArray(false));
break;
case '}':
case ']':
if (quoteMode)
{
goto default;
}
if (_stack.Count <= _ctx.Count)
{
throw new Exception("JSON Parse: Too many closing brackets");
}
if (_tokenExists)
{
AddNode(_token.ToString(), _tokenName);
}
CleanToken();
var col = _ctx;
var array = col.Node as JSONArray;
var count = (int)col.Count;
if (array != null)
{
array.Init(count);
}
else
{
((JSONClass)col.Node).Init(count);
}
for (int j = _stack.Count - count; j < _stack.Count; j++)
{
var child = _stack[j];
col.Node.Add(child.TokenName, child.Node);
}
_stack.RemoveRange(_stack.Count - count, count);
_ctx = _stack[_stack.Count - 1];
_stack.RemoveAt(_stack.Count - 1);
AddNode(col.Node, col.TokenName);
_tokenExists = false;
break;
case ':':
case '=':
if (!receipt && curChar == '=')
{
goto default;
}
if (quoteMode)
{
_token.Append(curChar);
break;
}
_tokenName = _token.ToString();
_token.Remove(0, _token.Length);
break;
case '"':
case '\'':
if (!quoteMode)
{
quoteMode = true;
quoteSymbol = curChar;
}
else if (quoteSymbol == curChar)
{
quoteMode = false;
_tokenExists = true;
}
else
{
goto default;
}
break;
case ',':
case ';':
if (!receipt && curChar == ';')
{
goto default;
}
if (quoteMode)
{
_token.Append(curChar);
break;
}
if (_tokenExists)
{
AddNode(_token.ToString(), _tokenName);
}
CleanToken();
break;
case '\r':
case '\n':
break;
case ' ':
case '\t':
if (quoteMode)
{
goto default;
}
break;
case '\\':
++i;
if (quoteMode)
{
var C = aJSON.GetChar(i);
switch (C)
{
case 't':
_token.Append('\t');
break;
case 'r':
_token.Append('\r');
break;
case 'n':
_token.Append('\n');
break;
case 'b':
_token.Append('\b');
break;
case 'f':
_token.Append('\f');
break;
case 'u':
{
var s = aJSON.GetString(i + 1, 4);
_token.Append((char)int.Parse(s, System.Globalization.NumberStyles.AllowHexSpecifier));
i += 4;
break;
}
default:
_token.Append(C);
break;
}
}
break;
default:
_token.Append(curChar);
_tokenExists = true;
break;
}
++i;
}
if (quoteMode)
{
throw new Exception("JSON Parse: Quotation marks seems to be messed up.");
}
if (_stack.Count > 0)
{
return(_stack[0].Node);
}
if (_tokenExists)
{
return((JSONNode)_token.ToString());
}
return(null);
}
