/// <summary>
/// Add new attribute to attribute dictionary
/// </summary>
/// <param name="name">name of the attribute</param>
/// <param name="obj_val">attribute value</param>
public bool AddAttr(string name, JSON_obj obj_val)
{
if (name == null)
{
return(false);
}
this.attr_dic[name] = obj_val;
return(true);
}
/// <summary>
/// Construct this object from string
/// </summary>
public bool Read_from_str(string str_json, bool transformQuote)
{
if (str_json == null)
{
return(false);
}
else
{
this.ClearAttr();
}
JSON_parser parser = new JSON_parser();
parser.str = str_json;
ParseState currState = ParseState.None;
Stack <StackItem> stack = new Stack <StackItem>();
while ((currState = parser.Next()) != ParseState.None)
{
/*Fot testing*/
//if (currState == ParseState.Value_str) Console.WriteLine("state:" + currState + " str:" + parser.val_str);
//else if (currState == ParseState.Value_num) Console.WriteLine("state:" + currState + " num:" + parser.val_num);
//else if (currState == ParseState.Between) continue;
//else Console.WriteLine("state:" + currState);
if (currState == ParseState.Between)
{
continue;
}
StackItem item = new StackItem(currState, parser.val_str, parser.val_num);
if (item.state == ParseState.Obj_begin)
{
if (stack.Count < 1)
{
item.jsObj = this;
}
else
{
item.jsObj = new JSON_obj();
}
stack.Push(item);
}
else if (item.state == ParseState.List_start)
{
if (stack.Count < 1)
{
return(false);
}
if (stack.Peek().state == ParseState.Obj_begin)
{
return(false);
}
else
{
item.jsObj = new JSON_obj(new List <JSON_obj>());
stack.Push(item);
}
}
else if (item.state == ParseState.Value_num)
{
if (stack.Count < 1)
{
return(false);
}
if (stack.Peek().state == ParseState.Obj_begin)
{
stack.Push(item);
}
else
{
string key = null;
if (stack.Peek().state == ParseState.Value_str)
{
key = stack.Pop().val_str;
stack.Peek().jsObj.AddAttr(key, new JSON_obj(item.val_num));
}
else if (stack.Peek().state == ParseState.Value_num)
{
key = stack.Pop().val_num.ToString();
stack.Peek().jsObj.AddAttr(key, new JSON_obj(item.val_num));
}
else if (stack.Peek().state == ParseState.List_start)
{
stack.Peek().jsObj.obj_list.Add(new JSON_obj(item.val_num));
}
}
}
else if (item.state == ParseState.Value_str)
{
if (stack.Count < 1)
{
continue;
}
if (stack.Peek().state == ParseState.Obj_begin)
{
stack.Push(item);
}
else
{
if (stack.Peek().state == ParseState.Value_str)
{
string key = this.ToOriStr_JSON(stack.Pop().val_str, transformQuote);
string val = this.ToOriStr_JSON(item.val_str, transformQuote);
stack.Peek().jsObj.AddAttr(key, new JSON_obj(val));
}
else if (stack.Peek().state == ParseState.Value_num)
{
string key = stack.Pop().val_num.ToString();
string val = this.ToOriStr_JSON(item.val_str, transformQuote);
stack.Peek().jsObj.AddAttr(key, new JSON_obj(val));
}
else if (stack.Peek().state == ParseState.List_start)
{
string val = this.ToOriStr_JSON(item.val_str, transformQuote);
stack.Peek().jsObj.obj_list.Add(new JSON_obj(val));
}
}
}
else if (item.state == ParseState.Obj_end)
{
if (stack.Count < 1)
{
return(false);
}
while (stack.Peek().state != ParseState.Obj_begin)
{
stack.Pop();
}
if (stack.Count == 1)
{
break; //find root JSON_obj
}
string key = null;
JSON_obj value_obj = stack.Pop().jsObj;//wrap current obj into a JSON_obj
if (stack.Peek().state == ParseState.Value_str)
{
key = stack.Pop().val_str;
stack.Peek().jsObj.AddAttr(key, value_obj);
}
else if (stack.Peek().state == ParseState.Value_num)
{
key = stack.Pop().val_num.ToString();
stack.Peek().jsObj.AddAttr(key, value_obj);
}
else if (stack.Peek().state == ParseState.List_start)
{
stack.Peek().jsObj.obj_list.Add(value_obj);
}
}
else if (item.state == ParseState.List_end)
{
if (stack.Count < 1)
{
return(false);
}
while (stack.Peek().state != ParseState.List_start)
{
stack.Pop();
}
string key = null;
JSON_obj value_obj = stack.Pop().jsObj;//wrap current list into a JSON object
if (stack.Count < 1)
{
return(false);
}
if (stack.Peek().state == ParseState.Value_str)
{
key = stack.Pop().val_str;
stack.Peek().jsObj.AddAttr(key, value_obj);
}
else if (stack.Peek().state == ParseState.Value_num)
{
key = stack.Pop().val_num.ToString();
stack.Peek().jsObj.AddAttr(key, value_obj);
}
else if (stack.Peek().state == ParseState.List_start)
{
stack.Peek().jsObj.obj_list.Add(value_obj);
}
}
}
return(true);
}
