//+------------------------------------------------------------------+
//|                                                      CYmlNode.mqh |
//|                                  Copyright 2025, Niquel Mendoza. |
//|                          https://www.mql5.com/es/users/nique_372 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, Niquel Mendoza."
#property link      "https://www.mql5.com/es/users/nique_372"
#property strict

#ifndef YMLPARSERBYLEO_SRC_YMLNODE_MQH
#define YMLPARSERBYLEO_SRC_YMLNODE_MQH


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
#include "YmlParser.mqh"


// KEY         2 pos  [tipo|scape|hash][start<<32|end]
// STR         2 pos  [tipo|scape][start<<32|end]
// STR_MULTI   2 pos  [tipo|ident|saltos][start<<32|end]
// INTEGER     2 pos  [tipo][valor_long]
// DBL         2 pos  [tipo][valor_long (bits del double)]
// BOOL        1 pos  [tipo|valor]
// NULL        1 pos  [tipo]
// ARR         1 pos  [tipo|count|closing_pos]  (elementos siguen inmediatamente)
// OBJ         1 pos  [tipo|count|closing_pos]  (key+val siguen inmediatamente)
// ---
// REF_CREATE  1 pos  [tipo|closing_pos]        (sigue NAME 2pos + valor) (puede ser simple o compleja pero ocupa mismos dos pos)
// NAME        1 pos  [start<<32|end]           (nombre del anchor, siempre tras REF_CREATE)
// ---
// PTR         1 pos  [tipo|pos_ref_create]     (apunta a REF_CREATE)

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
#define YML_NODE_IS_NOT_VALID (m_ctx==NULL || m_idx == -1 || m_end == -1)
struct CYmlIteratorArray;
struct CYmlIteratorObj;

//---
#define YML_RESOLVE_PTR(ctx, idx) ((int(ctx.m_cinta[idx] & 0xF) == YML_CLASIFIER_TOKEN_TYPE_PTR) ? (int(ctx.m_cinta[idx] >> YMLPARSER_BIT_END_TYPE) + 2) : (idx))


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
struct CYmlNode
 {
public:
  //---
  CYmlParser*        m_ctx;
  int                m_idx;
  int                m_end;

  //---
                     CYmlNode()
    :                  m_ctx(NULL), m_idx(-1), m_end(-1) {}
  //---
                     CYmlNode(CYmlParser* _ctx, int _idx, int _end)
    :                 m_ctx(_ctx), m_idx(_idx), m_end(_end) {}

  //--- Operators
  CYmlNode           operator[](const string& key) const;
  CYmlNode           At(const int index) const;
  CYmlNode           AtHomegeneo(const int index) const;

  //--- To
  // String
  string             ToString(string def = "") const;
  // Int
  long               ToInt(long def) const;
  bool               ToIntSafe(long &val) const; // Version bool\true (si se pudo obtener)
  // Dbl
  double             ToDouble(double def) const;
  bool               ToDoubleSafe(double &val) const; // Version bool\true (si se pudo obtener)
  // Bool
  __forceinline bool ToBool(bool def) const;
  bool               ToBoolSafe(bool& val) const; // Version bool\true (si se pudo obtener)

  //--- Set
  bool               SetDbl(const double val);
  bool               SetInt(const long val);
  bool               SetBool(const bool val);

  //--- Type
  __forceinline ENUM_YML_CLASIFIER_TYPE_VAL  GetType() const { return ENUM_YML_CLASIFIER_TYPE_VAL(m_ctx.m_cinta[m_idx] & 0xF); }
  ENUM_DATATYPE      GetTypeAsDataType(ENUM_DATATYPE def) const;
  bool               AssingMqlParam(MqlParam& param) const;

  //--- Is
  __forceinline bool IsValid() const;
  __forceinline bool IsNull() const;
  __forceinline bool IsArray()  const;
  __forceinline bool IsObject() const;

  //--- Iterador
  CYmlIteratorArray  BeginArr() const;
  CYmlIteratorObj    BeginObj() const;


  //--- Obtencion de key
  // Esto solo aplica para los obejtos o blouqes (key:vak) donde val es homogeneo en todos (ocupa las miams posicons de cinta)
  string             AtObjKeyHomgenero(const int index) const;
  // Obtinee key val=cualquiera
  string             AtObjKey(const int index) const;

  //--- Size (arr o objeto)
  int                Size() const;

  //---
  // solo_en_el_bloque_actual= solo te permite moverte en el bloque acutal (ejemplo si estas en un objeto)
  // Si el nueva posicion empeiza fuera de ese bloque entonces false, si quieres moveremtne libremente usa el parametro
  // solo_en_el_bloque_actual = false
  bool               MoveToNextToken(bool solo_en_el_bloque_actual = true);


  //---
  // No safe
  // Retorna el nodo a "posiciones" del m_idx actual
  CYmlNode           MoveNextPositions(int posiciones, bool solo_en_el_bloque_actual = true);
  // Este muta el objeto actual no retorna
  bool               MoveNextPositionsThis(int posiciones, bool solo_en_el_bloque_actual = true);
 };

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
const CYmlNode EMPTY_YMLNODE;


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
CYmlNode CYmlNode::operator[](const string& key) const
 {
//---
  if(YML_NODE_IS_NOT_VALID)
    return EMPTY_YMLNODE;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  const int tipo = int(m_ctx.m_cinta[i] & 0xF);
  if(tipo != YML_CLASIFIER_TOKEN_TYPE_OBJ && tipo != YML_CLASIFIER_TOKEN_TYPE_REFERENCE_COMPLEX)
    return EMPTY_YMLNODE;

//---
  const int len = StringLen(key);
  uint hash = 2166136261;
  for(int k = 0; k < len; k++)
   {
    hash ^= (uint)key[k];
    hash *= 16777619;
   }

//---
  int cur = i + 1; // salta header OBJ
  while(cur < m_end)
   {
    if((m_ctx.m_cinta[cur] & 0xF) != YML_CLASIFIER_TOKEN_TYPE_KEY)
     {
      cur += m_ctx.GetStep(cur);
      continue;
     }
    if(hash == uint(m_ctx.m_cinta[cur] >> YMLPARSER_KEY_BIT_INIT_HASH))
     {
      const int next_pos = cur + 2;
      const int final_pos = next_pos + m_ctx.GetStep(next_pos);
      return CYmlNode(m_ctx, next_pos, final_pos);
     }
    cur += 2;
    cur += m_ctx.GetStep(cur);
   }
  return EMPTY_YMLNODE;
 }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
CYmlNode CYmlNode::At(const int index) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return EMPTY_YMLNODE;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  if(int(m_ctx.m_cinta[i] & 0xF) != YML_CLASIFIER_TOKEN_TYPE_ARR)
    return EMPTY_YMLNODE;

//---
  const int count = int((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 0xFFFFFFF);
  if(index < 0 || index >= count)
    return EMPTY_YMLNODE;

//---
  int cur = i + 1; // primer elemento
  for(int k = 0; k < index; k++)
    cur += m_ctx.GetStep(cur);

//---
  const int final_pos = cur + m_ctx.GetStep(cur);
  return CYmlNode(m_ctx, cur, final_pos);
 }


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
// At, para bloques implicitos
// ejemplo
// - valor : 10
//   numeros: 10
// [obj][key][key][val][val][obj][key][key][val][val]
string CYmlNode::AtObjKey(const int index) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return "";

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  if(int(m_ctx.m_cinta[i] & 0xF) != YML_CLASIFIER_TOKEN_TYPE_OBJ)
    return "";

//---
  const int count = int((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 0xFFFFFFF);
  if(index < 0 || index >= count)
    return "";

//---
  int cur = i + 1; // primer elemento
  for(int k = 0; k < index; k++)
   {
    cur +=  2;
    cur += m_ctx.GetStep(cur);
   }
  cur += 1; // Ahora mismo nos ubicamos en la poscion del iniico de key avanzamos a la info

//---
  const int start = int(m_ctx.m_cinta[cur] >> 32);
  const int end = int(m_ctx.m_cinta[cur] & 0xFFFFFFFF);

//---
  return ShortArrayToString(m_ctx.m_yml, start, (end - start) + 1);
 }

//+------------------------------------------------------------------+
string CYmlNode::AtObjKeyHomgenero(const int index) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return "";

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  if(int(m_ctx.m_cinta[i] & 0xF) != YML_CLASIFIER_TOKEN_TYPE_OBJ)
    return "";

//---
  const int count = int((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 0xFFFFFFF);
  if(index < 0 || index >= count)
    return "";

//---
// [obj][key][key][val][val][key][key][val][val][key][key]
// i = primer elemtno (en este caso key)
// i+3 = primer val
  const int cur = ((i + 1) + (index * (2 + m_ctx.GetStep(i + 3)))) + 1;

//---
  const int start = int(m_ctx.m_cinta[cur] >> 32);
  const int end = int(m_ctx.m_cinta[cur] & 0xFFFFFFFF);

//---
  return ShortArrayToString(m_ctx.m_yml, start, (end - start) + 1);
 }


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
CYmlNode CYmlNode::AtHomegeneo(const int index) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return EMPTY_YMLNODE;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  if(int(m_ctx.m_cinta[i] & 0xF) != YML_CLASIFIER_TOKEN_TYPE_ARR)
    return EMPTY_YMLNODE;

//---
  const int count = int((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 0xFFFFFFF);
  if(index < 0 || index >= count)
    return EMPTY_YMLNODE;

//---
// step fijo del primer elemento
  const int first = i + 1;
  const int step = m_ctx.GetStep(first);
  const int cur = first + index * step;
  return CYmlNode(m_ctx, cur, cur + step);
 }
// [obj=type arr][obj_implicito=obj][key][key][val][val][obj_implicito=obj][key][key][val][val]
//+------------------------------------------------------------------+
//| Operaciones de bajo nivel mover la cinta custom                  |
//+------------------------------------------------------------------+
bool CYmlNode::MoveToNextToken(bool solo_en_el_bloque_actual = true)
 {
  if(YML_NODE_IS_NOT_VALID)
    return false;

//--- Nuevas posiciones
  const int next_pos = m_idx + m_ctx.GetStep(m_idx); // usa GetStep, no hardcodea 2
  const int final_pos = next_pos + m_ctx.GetStep(next_pos);

//--- Check
  if(next_pos >= (solo_en_el_bloque_actual ? m_end : m_ctx.m_cinta_pos))
    return false;

//---
  m_idx = next_pos;
  m_end = final_pos;
  return true;
 }

//+------------------------------------------------------------------+
bool CYmlNode::MoveNextPositionsThis(int posiciones, bool solo_en_el_bloque_actual = true)
 {
  if(YML_NODE_IS_NOT_VALID)
    return false;

//--- Nuevas posiciones
  const int next_pos = m_idx + posiciones; // usa GetStep, no hardcodea 2
  // si solo nos movemos en el bloque actual el end sera el actual del bloque actual (si es que tamos)
  // si no si es libre enotnfes al siguiente token
  const int final_pos = solo_en_el_bloque_actual ? m_end : next_pos + m_ctx.GetStep(next_pos);

//--- Check
  if(next_pos >= (solo_en_el_bloque_actual ? m_end : m_ctx.m_cinta_pos))
    return false;

//---
  m_idx = next_pos;
  m_end = final_pos;

//---
  return true;
 }


//+------------------------------------------------------------------+
CYmlNode CYmlNode::MoveNextPositions(int posiciones, bool solo_en_el_bloque_actual = true)
 {
  if(YML_NODE_IS_NOT_VALID)
    return EMPTY_YMLNODE;

//--- Nuevas posiciones
  const int next_pos = m_idx + posiciones; // usa GetStep, no hardcodea 2
  const int final_pos = solo_en_el_bloque_actual ? m_end : next_pos + m_ctx.GetStep(next_pos);

//--- Check
  if(next_pos >= (solo_en_el_bloque_actual ? m_end : m_ctx.m_cinta_pos))
    return EMPTY_YMLNODE;

//---
  return CYmlNode(m_ctx, next_pos, final_pos);
 }


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool CYmlNode::AssingMqlParam(MqlParam& param) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return false;

//---
  const int new_index = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  switch(int(m_ctx.m_cinta[new_index] & 0xF))
   {
    //---
    case YML_CLASIFIER_TOKEN_TYPE_KEY:
      return false;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_STR:
     {
      param.type = TYPE_STRING;
      param.string_value = ToString("");
      return param.string_value != "";
     }

    //---
    case YML_CLASIFIER_TOKEN_TYPE_INTEGER:
     {
      param.type = TYPE_LONG;
      return ToIntSafe(param.integer_value);
     }

    //---
    case YML_CLASIFIER_TOKEN_TYPE_DBL:
     {
      param.type = TYPE_DOUBLE;
      return ToDoubleSafe(param.double_value);
     }

    //---
    case YML_CLASIFIER_TOKEN_TYPE_BOOL:
     {
      param.type = TYPE_BOOL;
      bool temp;
      if(!ToBoolSafe(temp))
        return false;
      param.integer_value = temp;
      return true;
     }


    //---
    case YML_CLASIFIER_TOKEN_TYPE_NULL:
      return false;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_STR_MULTILINE:
     {
      param.type = TYPE_STRING;
      param.string_value = ToString("");
      return param.string_value != "";
     }

    //---
    case YML_CLASIFIER_TOKEN_TYPE_ARR:
    case YML_CLASIFIER_TOKEN_TYPE_OBJ:
    case YML_CLASIFIER_TOKEN_TYPE_REFERENCE_SIMPLE:
    case YML_CLASIFIER_TOKEN_TYPE_REFERENCE_COMPLEX:
    case YML_CLASIFIER_TOKEN_TYPE_PTR:
      return false;
   }

//---
  return false;
 }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
ENUM_DATATYPE CYmlNode::GetTypeAsDataType(ENUM_DATATYPE def) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return def;

//---
  const int new_index = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  switch(int(m_ctx.m_cinta[new_index] & 0xF))
   {
    //---
    case YML_CLASIFIER_TOKEN_TYPE_KEY:
      return def;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_STR:
      return TYPE_STRING;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_INTEGER:
      return TYPE_LONG;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_DBL:
      return TYPE_DOUBLE;


    //---
    case YML_CLASIFIER_TOKEN_TYPE_BOOL:
      return TYPE_BOOL;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_NULL:
      return def;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_STR_MULTILINE:
      return TYPE_STRING;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_ARR:
    case YML_CLASIFIER_TOKEN_TYPE_OBJ:
    case YML_CLASIFIER_TOKEN_TYPE_REFERENCE_SIMPLE:
    case YML_CLASIFIER_TOKEN_TYPE_REFERENCE_COMPLEX:
    case YML_CLASIFIER_TOKEN_TYPE_PTR:
      return def;
   }

//---
  return def;
 }

//+------------------------------------------------------------------+
//| To String                                                        |
//+------------------------------------------------------------------+
string CYmlNode::ToString(string def = "") const
 {
  if(YML_NODE_IS_NOT_VALID)
    return def;

//---
  const int new_index = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  switch(int(m_ctx.m_cinta[new_index] & 0xF))
   {
    //---
    case YML_CLASIFIER_TOKEN_TYPE_KEY:
      return def;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_STR:
     {
      const int start = (int)(m_ctx.m_cinta[new_index + 1] >> 32);
      const int end = (int)(m_ctx.m_cinta[new_index + 1] & 0xFFFFFFFF);
      const bool scape = (bool)((m_ctx.m_cinta[new_index] >> YMLPARSER_BIT_END_TYPE) & 1);
      if(scape)
        return m_ctx.Unescape(start, end);

      return ShortArrayToString(m_ctx.m_yml, start, (end - start) + 1);   // raw directo
     }

    //---
    case YML_CLASIFIER_TOKEN_TYPE_INTEGER:
      return string(m_ctx.m_cinta[new_index + 1]);

    //---
    case YML_CLASIFIER_TOKEN_TYPE_DBL:
     {
      CYmlParser::LongToDbl un;
      un.l = m_ctx.m_cinta[new_index + 1];
      return string(un.d);
     }

    //---
    case YML_CLASIFIER_TOKEN_TYPE_BOOL:
      return ((m_ctx.m_cinta[new_index] >> YMLPARSER_BIT_END_TYPE) & 1) != 0 ? "true" : "false";

    //---
    case YML_CLASIFIER_TOKEN_TYPE_NULL:
      return def;

    //---
    case YML_CLASIFIER_TOKEN_TYPE_STR_MULTILINE:
     {
      const int start = int(m_ctx.m_cinta[new_index + 1] >> 32);
      const int end = int(m_ctx.m_cinta[new_index + 1] & 0xFFFFFFFF);
      const int ident = int((m_ctx.m_cinta[new_index] >> YMLPARSER_BIT_END_TYPE) & 0xFFFF);
      bool con_saltos = bool((m_ctx.m_cinta[new_index] >> 32) & 1);
      //---
      return m_ctx.ExtractMultiline(start, end, ident, con_saltos);
     }

    //---
    case YML_CLASIFIER_TOKEN_TYPE_ARR:
    case YML_CLASIFIER_TOKEN_TYPE_OBJ:
    case YML_CLASIFIER_TOKEN_TYPE_REFERENCE_SIMPLE:
    case YML_CLASIFIER_TOKEN_TYPE_REFERENCE_COMPLEX:
    case YML_CLASIFIER_TOKEN_TYPE_PTR:
      return def;
   }

//---
  return def;
 }

//+------------------------------------------------------------------+
//| To int                                                           |
//+------------------------------------------------------------------+
long CYmlNode::ToInt(long def) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return def;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  switch(int(m_ctx.m_cinta[i] & 0xF))
   {
    case YML_CLASIFIER_TOKEN_TYPE_INTEGER:
      return m_ctx.m_cinta[i + 1];
    case YML_CLASIFIER_TOKEN_TYPE_DBL:
     {
      CYmlParser::LongToDbl un;
      un.l = m_ctx.m_cinta[i + 1];
      return long(un.d);
     }
    case YML_CLASIFIER_TOKEN_TYPE_BOOL:
      return long((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 1);
   }

//---
  return def;
 }

//+------------------------------------------------------------------+
bool CYmlNode::ToIntSafe(long &val) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return false;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  switch(int(m_ctx.m_cinta[i] & 0xF))
   {
    case YML_CLASIFIER_TOKEN_TYPE_INTEGER:
     {
      val = m_ctx.m_cinta[i + 1];;
      return true;
     }
    case YML_CLASIFIER_TOKEN_TYPE_DBL:
     {
      CYmlParser::LongToDbl un;
      un.l = m_ctx.m_cinta[i + 1];
      val = long(un.d);
      return true;
     }
    case YML_CLASIFIER_TOKEN_TYPE_BOOL:
      val = long((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 1);
      return true;
   }

//---
  return false;
 }
//+------------------------------------------------------------------+
//| To Double                                                        |
//+------------------------------------------------------------------+
double CYmlNode::ToDouble(double def) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return def;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  switch(int(m_ctx.m_cinta[i] & 0xF))
   {
    case YML_CLASIFIER_TOKEN_TYPE_INTEGER:
      return double(m_ctx.m_cinta[i + 1]);
    case YML_CLASIFIER_TOKEN_TYPE_DBL:
     {
      CYmlParser::LongToDbl un;
      un.l = m_ctx.m_cinta[i + 1];
      return un.d;
     }
    case YML_CLASIFIER_TOKEN_TYPE_BOOL:
      return double((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 1);
   }

//---
  return def;
 }

//+------------------------------------------------------------------+
bool CYmlNode::ToDoubleSafe(double &val) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return false;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  switch(int(m_ctx.m_cinta[i] & 0xF))
   {
    case YML_CLASIFIER_TOKEN_TYPE_INTEGER:
     {
      val =  double(m_ctx.m_cinta[i + 1]);
      return true;
     }
    case YML_CLASIFIER_TOKEN_TYPE_DBL:
     {
      CYmlParser::LongToDbl un;
      un.l = m_ctx.m_cinta[i + 1];
      val =  un.d;
      return true;
     }
    case YML_CLASIFIER_TOKEN_TYPE_BOOL:
     {
      val = double((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 1);
      return true;
     }
   }

//---
  return false;
 }

//+------------------------------------------------------------------+
//| To Bool                                                          |
//+------------------------------------------------------------------+
bool CYmlNode::ToBool(bool def) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return def;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  switch(int(m_ctx.m_cinta[i] & 0xF))
   {
    case YML_CLASIFIER_TOKEN_TYPE_INTEGER:
      return m_ctx.m_cinta[i + 1] != 0;
    case YML_CLASIFIER_TOKEN_TYPE_DBL:
     {
      CYmlParser::LongToDbl un;
      un.l = m_ctx.m_cinta[i + 1];
      return un.d != 0.0;
     }
    case YML_CLASIFIER_TOKEN_TYPE_BOOL:
      return ((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 1) != 0;
   }

//---
  return def;
 }
//+------------------------------------------------------------------+
bool CYmlNode::ToBoolSafe(bool &val) const
 {
  if(YML_NODE_IS_NOT_VALID)
    return false;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  switch(int(m_ctx.m_cinta[i] & 0xF))
   {
    case YML_CLASIFIER_TOKEN_TYPE_INTEGER:
     {
      val = m_ctx.m_cinta[i + 1] != 0;
      return true;
     }
    case YML_CLASIFIER_TOKEN_TYPE_DBL:
     {
      CYmlParser::LongToDbl un;
      un.l = m_ctx.m_cinta[i + 1];
      val =  un.d != 0.0;
      return true;
     }
    case YML_CLASIFIER_TOKEN_TYPE_BOOL:
     {
      val = ((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 1) != 0;
      return true;
     }
   }

//---
  return false;
 }



//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int CYmlNode::Size() const
 {
  if(YML_NODE_IS_NOT_VALID)
    return 0;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  const int tipo = int(m_ctx.m_cinta[i] & 0xF);
  if(tipo != YML_CLASIFIER_TOKEN_TYPE_ARR && tipo != YML_CLASIFIER_TOKEN_TYPE_OBJ)
    return 0;

//---
  return int((m_ctx.m_cinta[i] >> YMLPARSER_BIT_END_TYPE) & 0xFFFFFFF);
 }

//+------------------------------------------------------------------+
//| Is                                                               |
//+------------------------------------------------------------------+
__forceinline bool CYmlNode::IsValid() const  { return !YML_NODE_IS_NOT_VALID; }

//+------------------------------------------------------------------+
__forceinline bool CYmlNode::IsNull() const
 {
  if(YML_NODE_IS_NOT_VALID)
    return true;
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);
  return int(m_ctx.m_cinta[i] & 0xF) == YML_CLASIFIER_TOKEN_TYPE_NULL;
 }

//+------------------------------------------------------------------+
__forceinline bool CYmlNode::IsArray() const
 {
  if(YML_NODE_IS_NOT_VALID)
    return false;
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);
  return int(m_ctx.m_cinta[i] & 0xF) == YML_CLASIFIER_TOKEN_TYPE_ARR;
 }

//+------------------------------------------------------------------+
__forceinline bool CYmlNode::IsObject() const
 {
  if(YML_NODE_IS_NOT_VALID)
    return false;
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);
  const int t = int(m_ctx.m_cinta[i] & 0xF);
  return t == YML_CLASIFIER_TOKEN_TYPE_OBJ || t == YML_CLASIFIER_TOKEN_TYPE_REFERENCE_COMPLEX;
 }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool CYmlNode::SetBool(const bool val)
 {
//---
  if(YML_NODE_IS_NOT_VALID)
    return false;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);
  if(int(m_ctx.m_cinta[i] & 0xF) == YML_CLASIFIER_TOKEN_TYPE_BOOL)
   {
    m_ctx.m_cinta[i] = YML_CLASIFIER_TOKEN_TYPE_BOOL | (long(val) << YMLPARSER_BIT_END_TYPE);
    return true;
   }

//---
  return false;
 }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool CYmlNode::SetInt(const long val)
 {
//---
  if(YML_NODE_IS_NOT_VALID)
    return false;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);
  if(int(m_ctx.m_cinta[i] & 0xF) == YML_CLASIFIER_TOKEN_TYPE_INTEGER)
   {
    m_ctx.m_cinta[i + 1] = val;
    return true;
   }

//---
  return false;
 }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool CYmlNode::SetDbl(const double val)
 {
//---
  if(YML_NODE_IS_NOT_VALID)
    return false;

//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);
  if(int(m_ctx.m_cinta[i] & 0xF) == YML_CLASIFIER_TOKEN_TYPE_DBL)
   {
    CYmlParser::LongToDbl un;
    un.d = val;

    m_ctx.m_cinta[i + 1] = un.l;
    return true;
   }

//---
  return false;
 }


//+------------------------------------------------------------------+
//| Iterador de arrays                                               |
//+------------------------------------------------------------------+
struct CYmlIteratorObj
 {
  CYmlParser*        m_ctx;
  int                m_cur;
  const int          m_end;


  //---
                     CYmlIteratorObj(CYmlParser* ctx, int cur, int end)
    :                m_ctx(ctx), m_cur(cur), m_end(end)
   {
   }

  //---
                     CYmlIteratorObj()
    :                m_ctx(NULL), m_cur(0), m_end(0)
   {
   }

  //---
  __forceinline bool IsValid() { return m_cur < m_end; }

  //---
  void               Next()
   {
    if(m_cur >= m_end)
      return;
    m_cur += 2; // salta KEY
    m_cur += m_ctx.GetStep(m_cur); // salta valor
   }

  //---
  string             Key()
   {
    if(m_cur >= m_end)
      return "";
    const int s = int(m_ctx.m_cinta[m_cur + 1] >> 32);
    const int e = int(m_ctx.m_cinta[m_cur + 1] & 0xFFFFFFFF);
    const bool scape = bool((m_ctx.m_cinta[m_cur] >> YMLPARSER_BIT_END_TYPE) & 1);
    return scape ? m_ctx.Unescape(s, e)
           : ShortArrayToString(m_ctx.m_yml, s, (e - s) + 1);
   }

  //---
  CYmlNode           Val()
   {
    if(m_cur >= m_end)
      return EMPTY_YMLNODE;
    const int pos = m_cur + 2;
    const int fin = pos + m_ctx.GetStep(pos);
    return CYmlNode(m_ctx, pos, fin);
   }
 };
const CYmlIteratorObj EMPTY_YMLITERATOR_OBJ;


//+------------------------------------------------------------------+
//| Iterador de arrays                                               |
//+------------------------------------------------------------------+
struct CYmlIteratorArray
 {
  CYmlParser*        m_ctx;
  int                m_cur;
  const int          m_end;

  //---
                     CYmlIteratorArray(CYmlParser* ctx, int cur, int end)
    :                m_ctx(ctx), m_cur(cur), m_end(end)
   {
   }

  //---
                     CYmlIteratorArray()
    :                m_ctx(NULL), m_cur(0), m_end(0)
   {
   }

  //---
  __forceinline bool IsValid() { return m_cur < m_end; }

  //---
  void               Next()
   {
    if(m_cur >= m_end)
      return;
    m_cur += m_ctx.GetStep(m_cur);
   }


  //---
  CYmlNode           Val()
   {
    if(m_cur >= m_end)
      return EMPTY_YMLNODE;
    const int pos = m_cur;
    const int fin = pos + m_ctx.GetStep(pos);
    return CYmlNode(m_ctx, pos, fin);
   }
 };
const CYmlIteratorArray EMPTY_YMLITERATOR_ARR;


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
CYmlIteratorArray CYmlNode::BeginArr() const
 {
//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  const int tipo = int(m_ctx.m_cinta[i] & 0xF);
  if(tipo != YML_CLASIFIER_TOKEN_TYPE_ARR)
    return EMPTY_YMLITERATOR_ARR;

//---
  return CYmlIteratorArray(m_ctx, i + 1, m_end);
 }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
CYmlIteratorObj CYmlNode::BeginObj() const
 {
//---
  const int i = YML_RESOLVE_PTR(m_ctx, m_idx);

//---
  const int tipo = int(m_ctx.m_cinta[i] & 0xF);
  if(tipo != YML_CLASIFIER_TOKEN_TYPE_OBJ)
    return EMPTY_YMLITERATOR_OBJ;

//---
  return CYmlIteratorObj(m_ctx, i + 1, m_end);
 }


//+------------------------------------------------------------------+
#endif // YMLPARSERBYLEO_SRC_YMLNODE_MQH