StopFirst-Core/Include/StopFirst/PipTable.mqh

//+------------------------------------------------------------------+
//|                                                     PipTable.mqh |
//|                                       Copyright 2026, bandersoft |
//|                               https://www.mql5.com/en/users/fats |
//+------------------------------------------------------------------+
//|                                                                  |
//|  Conventional pip sizes for common non-FX symbols. Read-only.     |
//|                                                                  |
//|  A pip on a CFD is a CONVENTION, not a property the broker        |
//|  reports. GetPipSize()'s automatic rule (point * 10 on 3- and     |
//|  5-digit symbols, point otherwise) is the forex convention, and   |
//|  makes a gold pip 0.01 - while most traders mean 0.10. Someone    |
//|  typing "30 pips" on gold then gets a stop ten times tighter than |
//|  they meant. The table encodes the usual retail convention.       |
//|                                                                  |
//|  OPT-IN. GetPipSize() does not consult the table; a program       |
//|  calls ApplyBuiltInPipSize() for a symbol to adopt it, after any  |
//|  explicit override, and should show users the pip in force.       |
//|  Both products do; keeping one table keeps them in agreement.    |
//|                                                                  |
//|  Matching is by PREFIX of the symbol name with leading non-letter |
//|  characters stripped, case-insensitive: "XAUUSD.m", "#XAUUSD" and |
//|  "GOLDmicro" match; "MYGOLD" does not. Prefix rather than         |
//|  substring, because a substring match on "DOW" or "CAC" would     |
//|  catch unrelated names.                                          |
//|                                                                  |
//|  A prefix alone is not enough. MetaQuotes-Demo lists exchange    |
//|  stocks and ETFs named BTCO, BTCW, ETHE, ETHU, DJIA (observed     |
//|  2026-10-14); a prefix rule gave each of them a 1.0 pip. So the  |
//|  table applies only to forex and CFD calculation modes, and       |
//|  crypto needs the quote currency in the name (BTCUSD, ETHEUR).   |
//|                                                                  |
//+------------------------------------------------------------------+
#ifndef STOPFIRST_PIPTABLE_MQH
#define STOPFIRST_PIPTABLE_MQH

#include "Symbol.mqh"   // SetPipSize - the table only feeds the override

//+------------------------------------------------------------------+
//| Upper-case a symbol and drop leading characters that are not      |
//| letters or digits ("#US30" -> "US30")                              |
//| Returns: the cleaned name.                                        |
//+------------------------------------------------------------------+
string PipTableKey(const string symbol)
{
   string name = symbol;
   StringToUpper(name);

   int start = 0;
   int length = StringLen(name);
   while(start < length)
   {
      ushort c = StringGetCharacter(name, start);
      bool alnum = (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9');
      if(alnum) break;
      start++;
   }

   return StringSubstr(name, start);
}

bool PipTableStartsWith(const string text, const string head)
{
   return StringFind(text, head) == 0;
}

//+------------------------------------------------------------------+
//| Conventional pip size for a symbol the table knows                |
//|                                                                   |
//| Returns: the pip size in price units, or 0 when the symbol is not |
//|          in the table, or when the table value is finer than the  |
//|          symbol's own point (a quote too coarse for the           |
//|          convention - the automatic rule is then the honest one). |
//+------------------------------------------------------------------+
double BuiltInPipSize(const string symbol)
{
   //--- exchange-traded instruments (stocks, ETFs, futures, bonds) are
   //--- quoted in plain currency units; the CFD conventions below would
   //--- be wrong for every one of them
   ENUM_SYMBOL_CALC_MODE mode =
      (ENUM_SYMBOL_CALC_MODE)SymbolInfoInteger(symbol, SYMBOL_TRADE_CALC_MODE);
   if(mode != SYMBOL_CALC_MODE_FOREX && mode != SYMBOL_CALC_MODE_FOREX_NO_LEVERAGE &&
      mode != SYMBOL_CALC_MODE_CFD && mode != SYMBOL_CALC_MODE_CFDINDEX &&
      mode != SYMBOL_CALC_MODE_CFDLEVERAGE)
      return 0;

   string key = PipTableKey(symbol);
   double pip = 0;

   //--- precious metals
   if(PipTableStartsWith(key, "XAU") || PipTableStartsWith(key, "GOLD"))
      pip = 0.1;
   else if(PipTableStartsWith(key, "XAG") || PipTableStartsWith(key, "SILVER"))
      pip = 0.01;
   else if(PipTableStartsWith(key, "XPT") || PipTableStartsWith(key, "XPD"))
      pip = 0.1;

   //--- energy
   else if(PipTableStartsWith(key, "USOIL") || PipTableStartsWith(key, "UKOIL") ||
           PipTableStartsWith(key, "WTI")   || PipTableStartsWith(key, "BRENT") ||
           PipTableStartsWith(key, "XTI")   || PipTableStartsWith(key, "XBR"))
      pip = 0.01;
   else if(PipTableStartsWith(key, "XNG") || PipTableStartsWith(key, "NGAS") ||
           PipTableStartsWith(key, "NATGAS"))
      pip = 0.001;

   //--- equity indices: one index point
   else if(PipTableStartsWith(key, "US30")   || PipTableStartsWith(key, "DJ30")   ||
           PipTableStartsWith(key, "WS30")   || PipTableStartsWith(key, "DJI")    ||
           PipTableStartsWith(key, "US100")  || PipTableStartsWith(key, "NAS100") ||
           PipTableStartsWith(key, "USTEC")  || PipTableStartsWith(key, "NDX")    ||
           PipTableStartsWith(key, "US500")  || PipTableStartsWith(key, "SPX500") ||
           PipTableStartsWith(key, "SP500")  || PipTableStartsWith(key, "US2000") ||
           PipTableStartsWith(key, "GER40")  || PipTableStartsWith(key, "GER30")  ||
           PipTableStartsWith(key, "DE40")   || PipTableStartsWith(key, "DE30")   ||
           PipTableStartsWith(key, "UK100")  || PipTableStartsWith(key, "FTSE")   ||
           PipTableStartsWith(key, "JP225")  || PipTableStartsWith(key, "JPN225") ||
           PipTableStartsWith(key, "NIKKEI") || PipTableStartsWith(key, "FRA40")  ||
           PipTableStartsWith(key, "F40")    || PipTableStartsWith(key, "EU50")   ||
           PipTableStartsWith(key, "STOXX50")|| PipTableStartsWith(key, "AUS200") ||
           PipTableStartsWith(key, "HK50")   || PipTableStartsWith(key, "ESP35")  ||
           PipTableStartsWith(key, "SPA35"))
      pip = 1.0;

   //--- crypto: one unit of the quote currency. The quote currency must
   //--- be in the name - a bare "BTC..." prefix also matches ETF tickers
   else if(PipTableStartsWith(key, "BTCUSD") || PipTableStartsWith(key, "BTCEUR") ||
           PipTableStartsWith(key, "BTCUSDT") || PipTableStartsWith(key, "ETHUSD") ||
           PipTableStartsWith(key, "ETHEUR"))
      pip = 1.0;

   if(pip <= 0) return 0;

   double point = SymbolInfoDouble(symbol, SYMBOL_POINT);
   if(point <= 0 || pip < point - 1e-12) return 0;

   return pip;
}

//+------------------------------------------------------------------+
//| Adopt the conventional pip size for a symbol, if the table has one|
//|                                                                   |
//| Parameters:                                                       |
//|   symbol - "" for the chart symbol                               |
//|                                                                   |
//| Returns: true if the table set the pip size through SetPipSize(). |
//|          false, leaving GetPipSize() unchanged, when the symbol is |
//|          not in the table.                                        |
//+------------------------------------------------------------------+
bool ApplyBuiltInPipSize(string symbol = "")
{
   if(symbol == "") symbol = _Symbol;

   double pip = BuiltInPipSize(symbol);
   if(pip <= 0) return false;

   SetPipSize(symbol, pip);
   return true;
}

#endif // STOPFIRST_PIPTABLE_MQH
//+------------------------------------------------------------------+