/// <summary>
/// 解析文本读取器中的数据，用文本读取器中的数据构建对应的JObject对象，JObject对象内部最大嵌套层数为100
/// </summary>
/// <param name="reader">文本读取器</param>
/// <param name="max_nest">对象内部最大嵌套层数</param>
/// <returns>输出文本读取器中的数据构建的JObject对象</returns>
public static JObject Parse(TextReader reader, int max_nest = 100)
{
if (max_nest < 0)
{
throw new FormatException();
}
SkipSpace(reader);
char firstChar = (char)reader.Peek();
if (firstChar == '\"' || firstChar == '\'')
{
return(JString.Parse(reader));
}
if (firstChar == '[')
{
return(JArray.Parse(reader, max_nest));
}
if ((firstChar >= '0' && firstChar <= '9') || firstChar == '-')
{
return(JNumber.Parse(reader));
}
if (firstChar == 't' || firstChar == 'f')
{
return(JBoolean.Parse(reader));
}
if (firstChar == 'n')
{
return(ParseNull(reader));
}
if (reader.Read() != '{')
{
throw new FormatException();
}
SkipSpace(reader);
JObject obj = new JObject();
while (reader.Peek() != '}')
{
if (reader.Peek() == ',')
{
reader.Read();
}
SkipSpace(reader);
string name = JString.Parse(reader).Value;
SkipSpace(reader);
if (reader.Read() != ':')
{
throw new FormatException();
}
JObject value = Parse(reader, max_nest - 1);
obj.properties.Add(name, value);
SkipSpace(reader);
}
reader.Read();
return(obj);
}
public static JObject Parse(TextReader reader, int max_nest = 100)
{
if (max_nest < 0)
{
throw new FormatException();
}
SkipSpace(reader);
char firstChar = (char)reader.Peek();
if (firstChar == LITERAL_FALSE[0])
{
return(JBoolean.ParseFalse(reader));
}
if (firstChar == LITERAL_NULL[0])
{
return(ParseNull(reader));
}
if (firstChar == LITERAL_TRUE[0])
{
return(JBoolean.ParseTrue(reader));
}
if (firstChar == BEGIN_OBJECT)
{
return(ParseObject(reader, max_nest));
}
if (firstChar == BEGIN_ARRAY)
{
return(JArray.Parse(reader, max_nest));
}
if ((firstChar >= '0' && firstChar <= '9') || firstChar == '-')
{
return(JNumber.Parse(reader));
}
if (firstChar == QUOTATION_MARK)
{
return(JString.Parse(reader));
}
throw new FormatException();
}