// Token: 0x06004B2F RID: 19247 RVA: 0x00148FE8 File Offset: 0x001471E8
private static string ParseString(string str, ref int startPosition)
{
if (str[startPosition] != '"' || startPosition + 1 >= str.Length)
{
Object.Fail('"', startPosition);
return(null);
}
int num = str.IndexOf('"', startPosition + 1);
if (num <= startPosition)
{
Object.Fail('"', startPosition + 1);
return(null);
}
while (str[num - 1] == '\\')
{
num = str.IndexOf('"', num + 1);
if (num <= startPosition)
{
Object.Fail('"', startPosition + 1);
return(null);
}
}
string result = string.Empty;
if (num > startPosition + 1)
{
result = str.Substring(startPosition + 1, num - startPosition - 1);
}
startPosition = num;
return(result);
}
// Token: 0x06004B31 RID: 19249 RVA: 0x0014915C File Offset: 0x0014735C
private static Object Fail(char expected, int position)
{
return(Object.Fail(new string(expected, 1), position));
}
// Token: 0x06004B2D RID: 19245 RVA: 0x00148854 File Offset: 0x00146A54
public static Object Parse(string jsonString)
{
if (string.IsNullOrEmpty(jsonString))
{
return(null);
}
Value value = null;
List <string> list = new List <string>();
Object.ParsingState parsingState = Object.ParsingState.Object;
for (int i = 0; i < jsonString.Length; i++)
{
i = Object.SkipWhitespace(jsonString, i);
switch (parsingState)
{
case Object.ParsingState.Object:
{
if (jsonString[i] != '{')
{
return(Object.Fail('{', i));
}
Value value2 = new Object();
if (value != null)
{
value2.Parent = value;
}
value = value2;
parsingState = Object.ParsingState.Key;
break;
}
case Object.ParsingState.Array:
{
if (jsonString[i] != '[')
{
return(Object.Fail('[', i));
}
Value value3 = new Array();
if (value != null)
{
value3.Parent = value;
}
value = value3;
parsingState = Object.ParsingState.Value;
break;
}
case Object.ParsingState.EndObject:
{
if (jsonString[i] != '}')
{
return(Object.Fail('}', i));
}
if (value.Parent == null)
{
return(value.Obj);
}
ValueType type = value.Parent.Type;
if (type != ValueType.Object)
{
if (type != ValueType.Array)
{
return(Object.Fail("valid object", i));
}
value.Parent.Array.Add(new Value(value.Obj));
}
else
{
value.Parent.Obj.values[list.Pop <string>()] = new Value(value.Obj);
}
value = value.Parent;
parsingState = Object.ParsingState.ValueSeparator;
break;
}
case Object.ParsingState.EndArray:
{
if (jsonString[i] != ']')
{
return(Object.Fail(']', i));
}
if (value.Parent == null)
{
return(value.Obj);
}
ValueType type = value.Parent.Type;
if (type != ValueType.Object)
{
if (type != ValueType.Array)
{
return(Object.Fail("valid object", i));
}
value.Parent.Array.Add(new Value(value.Array));
}
else
{
value.Parent.Obj.values[list.Pop <string>()] = new Value(value.Array);
}
value = value.Parent;
parsingState = Object.ParsingState.ValueSeparator;
break;
}
case Object.ParsingState.Key:
if (jsonString[i] == '}')
{
i--;
parsingState = Object.ParsingState.EndObject;
}
else
{
string text = Object.ParseString(jsonString, ref i);
if (text == null)
{
return(Object.Fail("key string", i));
}
list.Add(text);
parsingState = Object.ParsingState.KeyValueSeparator;
}
break;
case Object.ParsingState.Value:
{
char c = jsonString[i];
if (c == '"')
{
parsingState = Object.ParsingState.String;
}
else if (char.IsDigit(c) || c == '-')
{
parsingState = Object.ParsingState.Number;
}
else
{
char c2 = c;
switch (c2)
{
case '[':
parsingState = Object.ParsingState.Array;
break;
default:
if (c2 != 'f')
{
if (c2 == 'n')
{
parsingState = Object.ParsingState.Null;
break;
}
if (c2 != 't')
{
if (c2 != '{')
{
return(Object.Fail("beginning of value", i));
}
parsingState = Object.ParsingState.Object;
break;
}
}
parsingState = Object.ParsingState.Boolean;
break;
case ']':
if (value.Type != ValueType.Array)
{
return(Object.Fail("valid array", i));
}
parsingState = Object.ParsingState.EndArray;
break;
}
}
i--;
break;
}
case Object.ParsingState.KeyValueSeparator:
if (jsonString[i] != ':')
{
return(Object.Fail(':', i));
}
parsingState = Object.ParsingState.Value;
break;
case Object.ParsingState.ValueSeparator:
{
char c2 = jsonString[i];
if (c2 != ',')
{
if (c2 != ']')
{
if (c2 != '}')
{
return(Object.Fail(", } ]", i));
}
parsingState = Object.ParsingState.EndObject;
i--;
}
else
{
parsingState = Object.ParsingState.EndArray;
i--;
}
}
else
{
parsingState = ((value.Type != ValueType.Object) ? Object.ParsingState.Value : Object.ParsingState.Key);
}
break;
}
case Object.ParsingState.String:
{
string text2 = Object.ParseString(jsonString, ref i);
if (text2 == null)
{
return(Object.Fail("string value", i));
}
ValueType type = value.Type;
if (type != ValueType.Object)
{
if (type != ValueType.Array)
{
Debug.LogError("Fatal error, current JSON value not valid");
return(null);
}
value.Array.Add(text2);
}
else
{
value.Obj.values[list.Pop <string>()] = new Value(text2);
}
parsingState = Object.ParsingState.ValueSeparator;
break;
}
case Object.ParsingState.Number:
{
double num = Object.ParseNumber(jsonString, ref i);
if (double.IsNaN(num))
{
return(Object.Fail("valid number", i));
}
ValueType type = value.Type;
if (type != ValueType.Object)
{
if (type != ValueType.Array)
{
Debug.LogError("Fatal error, current JSON value not valid");
return(null);
}
value.Array.Add(num);
}
else
{
value.Obj.values[list.Pop <string>()] = new Value(num);
}
parsingState = Object.ParsingState.ValueSeparator;
break;
}
case Object.ParsingState.Boolean:
if (jsonString[i] == 't')
{
if (jsonString.Length < i + 4 || jsonString[i + 1] != 'r' || jsonString[i + 2] != 'u' || jsonString[i + 3] != 'e')
{
return(Object.Fail("true", i));
}
ValueType type = value.Type;
if (type != ValueType.Object)
{
if (type != ValueType.Array)
{
Debug.LogError("Fatal error, current JSON value not valid");
return(null);
}
value.Array.Add(new Value(true));
}
else
{
value.Obj.values[list.Pop <string>()] = new Value(true);
}
i += 3;
}
else
{
if (jsonString.Length < i + 5 || jsonString[i + 1] != 'a' || jsonString[i + 2] != 'l' || jsonString[i + 3] != 's' || jsonString[i + 4] != 'e')
{
return(Object.Fail("false", i));
}
ValueType type = value.Type;
if (type != ValueType.Object)
{
if (type != ValueType.Array)
{
Debug.LogError("Fatal error, current JSON value not valid");
return(null);
}
value.Array.Add(new Value(false));
}
else
{
value.Obj.values[list.Pop <string>()] = new Value(false);
}
i += 4;
}
parsingState = Object.ParsingState.ValueSeparator;
break;
case Object.ParsingState.Null:
if (jsonString[i] == 'n')
{
if (jsonString.Length < i + 4 || jsonString[i + 1] != 'u' || jsonString[i + 2] != 'l' || jsonString[i + 3] != 'l')
{
return(Object.Fail("null", i));
}
ValueType type = value.Type;
if (type != ValueType.Object)
{
if (type != ValueType.Array)
{
Debug.LogError("Fatal error, current JSON value not valid");
return(null);
}
value.Array.Add(new Value(ValueType.Null));
}
else
{
value.Obj.values[list.Pop <string>()] = new Value(ValueType.Null);
}
i += 3;
}
parsingState = Object.ParsingState.ValueSeparator;
break;
}
}
Debug.LogError("Unexpected end of string");
return(null);
}