--- parser3/src/main/compile.tab.C	2008/06/17 15:52:55	1.118
+++ parser3/src/main/compile.tab.C	2009/06/07 13:27:40	1.140
@@ -129,10 +129,10 @@
 /** @file
 	Parser: compiler(lexical parser and grammar).
 
-	Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com)
+	Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
 	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
 
-	$Id: compile.tab.C,v 1.118 2008/06/17 15:52:55 misha Exp $
+	$Id: compile.tab.C,v 1.140 2009/06/07 13:27:40 misha Exp $
 */
 
 /**
@@ -168,7 +168,10 @@
 // defines
 
 #define USE_CONTROL_METHOD_NAME "USE"
-#define OPTIONS_CONTROL_METHOD_NAME "OPTION"
+#define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"
+#define OPTION_ALL_VARS_LOCAL_NAME "locals"
+#define OPTION_PARTIAL_CLASS "partial"
+#define REM_OPERATOR_NAME "rem"
 
 // forwards
 
@@ -214,7 +217,7 @@ typedef int YYSTYPE;
 
 
 /* Line 214 of yacc.c.  */
-#line 218 "compile.tab.C"
+#line 221 "compile.tab.C"
 
 #if ! defined (yyoverflow) || YYERROR_VERBOSE
 
@@ -453,24 +456,24 @@ static const short int yyrhs[] =
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
 static const unsigned short int yyrline[] =
 {
-       0,   129,   129,   136,   138,   138,   139,   141,   141,   143,
-     229,   229,   230,   230,   231,   232,   232,   234,   234,   283,
-     283,   284,   285,   285,   286,   286,   288,   288,   292,   292,
-     294,   294,   295,   295,   296,   296,   296,   300,   307,   308,
-     308,   309,   311,   312,   313,   335,   336,   336,   340,   345,
-     346,   347,   348,   365,   370,   373,   374,   375,   377,   380,
-     377,   388,   396,   403,   404,   405,   407,   413,   414,   414,
-     418,   424,   427,   424,   443,   445,   445,   447,   448,   449,
-     451,   454,   451,   457,   458,   460,   461,   464,   465,   468,
-     469,   471,   475,   490,   495,   496,   497,   502,   502,   504,
-     504,   505,   506,   514,   519,   522,   523,   524,   525,   527,
-     531,   540,   543,   540,   551,   556,   556,   557,   563,   564,
-     566,   578,   590,   592,   593,   594,   595,   596,   597,   598,
-     599,   601,   602,   603,   604,   605,   606,   607,   608,   610,
-     611,   612,   613,   614,   615,   616,   617,   618,   619,   620,
-     621,   622,   623,   624,   625,   626,   627,   628,   629,   630,
-     631,   632,   633,   634,   635,   636,   639,   644,   653,   658,
-     659,   660,   662
+       0,   132,   132,   139,   141,   141,   142,   144,   144,   146,
+     247,   247,   248,   248,   249,   250,   250,   252,   252,   302,
+     302,   303,   304,   304,   305,   305,   307,   307,   311,   311,
+     313,   313,   314,   314,   315,   315,   315,   319,   360,   361,
+     361,   362,   364,   365,   366,   414,   415,   415,   419,   432,
+     433,   434,   435,   461,   466,   469,   470,   471,   473,   476,
+     473,   484,   492,   499,   500,   501,   503,   509,   510,   510,
+     514,   525,   528,   525,   556,   558,   558,   560,   561,   562,
+     564,   567,   564,   570,   571,   573,   574,   577,   578,   581,
+     582,   584,   587,   601,   606,   607,   608,   613,   613,   615,
+     615,   616,   617,   625,   630,   633,   634,   635,   636,   638,
+     642,   651,   654,   651,   662,   667,   667,   668,   674,   675,
+     677,   694,   706,   708,   709,   710,   711,   712,   713,   714,
+     715,   717,   718,   719,   720,   721,   722,   723,   724,   726,
+     727,   728,   729,   730,   731,   732,   733,   734,   735,   736,
+     737,   738,   739,   740,   741,   742,   743,   744,   745,   746,
+     747,   748,   749,   750,   751,   752,   755,   760,   781,   786,
+     787,   788,   790
 };
 #endif
 
@@ -1425,7 +1428,7 @@ yyreduce:
   switch (yyn)
     {
         case 2:
-#line 129 "compile.y"
+#line 132 "compile.y"
     {
 	Method& method=*new Method(Method::CT_ANY,
 		0, 0, /*min, max numbered_params_count*/
@@ -1436,7 +1439,7 @@ yyreduce:
     break;
 
   case 9:
-#line 144 "compile.y"
+#line 147 "compile.y"
     {
 	const String& command=*LA2S(*yyvsp[-2]);
 	YYSTYPE strings_code=yyvsp[0];
@@ -1447,24 +1450,13 @@ yyreduce:
 		YYERROR;
 	}
 	if(command==CLASS_NAME) {
-		/*
-		if(PC.cclass->base_class()) { // already changed from default?
-			strcpy(PC.error, "class already have a name '");
-			strncat(PC.error, PC.cclass->name().cstr(), 100);
-			strcat(PC.error, "'");
-			YYERROR;
-		}
-		*/
 		if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
 			// new class' name
 			const String& name=*LA2S(*strings_code);
 			// creating the class
 			VStateless_class* cclass=new VClass;
-			PC.cclass=cclass;
-			PC.cclass->set_name(name);
-			// append to request's classes
-			PC.request.classes().put(name, cclass);
-			*PC.cclasses+=cclass;
+			PC.cclass_new=cclass;
+			PC.cclass_new->set_name(name);
 		} else {
 			strcpy(PC.error, "@"CLASS_NAME" must contain only one line with class name (contains more then one)");
 			YYERROR;
@@ -1473,9 +1465,16 @@ yyreduce:
 		for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) 
 			PC.request.use_file(PC.request.main_class, *LA2S(*strings_code, i));
 	} else if(command==BASE_NAME) {
+		if(PC.append){
+			strcpy(PC.error, "can't set base while appending methods to class '");
+			strncat(PC.error, PC.cclass->name().cstr(), MAX_STRING/2);
+			strcat(PC.error, "'");
+			YYERROR;
+		}
+		PC.class_add();
 		if(PC.cclass->base_class()) { // already changed from default?
 			strcpy(PC.error, "class already have a base '");
-			strncat(PC.error, PC.cclass->base_class()->name().cstr(), 100);
+			strncat(PC.error, PC.cclass->base_class()->name().cstr(), MAX_STRING/2);
 			strcat(PC.error, "'");
 			YYERROR;
 		}
@@ -1506,11 +1505,30 @@ yyreduce:
 	} else if(command==OPTIONS_CONTROL_METHOD_NAME) {
 		for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE) {
 			const String& option=*LA2S(*strings_code, i);
-			if(option==ALL_VARS_LOCAL_NAME){
-				PC.cclass->all_vars_local();
+			if(option==OPTION_ALL_VARS_LOCAL_NAME){
+				PC.set_all_vars_local();
+			} else if(option==OPTION_PARTIAL_CLASS){
+				if(PC.cclass_new){
+					if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
+						if(!PC.reuse_existed_class(existed)){
+							strcpy(PC.error, "can't append methods to '");
+							strncat(PC.error, PC.cclass_new->name().cstr(), MAX_STRING/2);
+							strcat(PC.error, "' - the class wasn't marked as partial");
+							YYERROR;
+						}
+					} else {
+						// mark new class as partial. we can add methods to it later.
+						PC.cclass_new->set_partial();
+					}
+				} else {
+					strcpy(PC.error, "'"OPTION_PARTIAL_CLASS"' option should be used straight after @"CLASS_NAME);
+					YYERROR;
+				}
 			} else {
-				strcpy(PC.error, option.cstr());
-				strcat(PC.error, ": unknown option in @"OPTIONS_CONTROL_METHOD_NAME" was specified.");
+				strcpy(PC.error, "'");
+				strncat(PC.error, option.cstr(), MAX_STRING/2);
+				strcat(PC.error, "' invalid option. valid options are "
+					"'"OPTION_PARTIAL_CLASS"' and '"OPTION_ALL_VARS_LOCAL_NAME"'");
 				YYERROR;
 			}
 		}
@@ -1525,13 +1543,14 @@ yyreduce:
     break;
 
   case 13:
-#line 230 "compile.y"
+#line 248 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 17:
-#line 234 "compile.y"
+#line 252 "compile.y"
     { 
+	PC.class_add();
 	PC.explicit_result=false;
 
 	YYSTYPE params_names_code=yyvsp[-3];
@@ -1551,15 +1570,14 @@ yyreduce:
 			const String* local_name=LA2S(*locals_names_code, i);
 			if(*local_name==RESULT_VAR_NAME)
 				PC.explicit_result=true;
-			else if(*local_name==ALL_VARS_LOCAL_NAME)
+			else if(*local_name==OPTION_ALL_VARS_LOCAL_NAME)
 				all_vars_local=true;
 			else
 				*locals_names+=local_name;
 		}
 	}
-	if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local()){
+	if(!all_vars_local && PC.cclass && PC.cclass->is_vars_local())
 		all_vars_local=true;
-	}
 
 	Method* method=new Method(
 		//name, 
@@ -1575,112 +1593,190 @@ yyreduce:
     break;
 
   case 18:
-#line 274 "compile.y"
+#line 292 "compile.y"
     {
-        Method& method=*reinterpret_cast<Method*>(yyvsp[-1]);
-        // fill in the code
-        method.parser_code=yyvsp[0];
-        // register in class
-        const String& name=*LA2S(*yyvsp[-6]);
-        PC.cclass->add_method(PC.alias_method(name), method);
+		Method& method=*reinterpret_cast<Method*>(yyvsp[-1]);
+		// fill in the code
+		method.parser_code=yyvsp[0];
+
+		// register in class
+		const String& name=*LA2S(*yyvsp[-6]);
+		PC.cclass->add_method(PC.alias_method(name), method);
 ;}
     break;
 
   case 21:
-#line 284 "compile.y"
+#line 303 "compile.y"
     {yyval=yyvsp[-1];}
     break;
 
   case 25:
-#line 286 "compile.y"
+#line 305 "compile.y"
     { yyval=yyvsp[-2]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 31:
-#line 294 "compile.y"
+#line 313 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 37:
-#line 300 "compile.y"
+#line 319 "compile.y"
     {
-	yyval=yyvsp[0]; /* stack: resulting value */ 
-	changetail_or_append(*yyval, 
-		OP_GET_ELEMENT, false,  /*->*/OP_GET_ELEMENT__WRITE,
-		/*or */OP_WRITE_VALUE
-		); /* value=pop; wcontext.write(value) */
+	yyval=N();
+	YYSTYPE code=yyvsp[0];
+	size_t count=code->count();
+
+#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
+	if(
+		count!=3
+		|| !maybe_change_first_opcode(*code, OP::OP_VALUE__GET_ELEMENT, /*=>*/OP::OP_VALUE__GET_ELEMENT__WRITE)
+	)
+#endif
+
+#ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
+	if(
+		count!=3
+		|| !maybe_change_first_opcode(*code, OP::OP_WITH_SELF__VALUE__GET_ELEMENT, /*=>*/OP::OP_WITH_SELF__VALUE__GET_ELEMENT__WRITE)
+	)
+#endif
+
+#ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
+	if(
+		count!=5
+		|| !maybe_change_first_opcode(*code, OP::OP_GET_OBJECT_ELEMENT, /*=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE)
+	)
+#endif
+
+#ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
+	if(
+		count!=5
+		|| !maybe_change_first_opcode(*code, OP::OP_GET_OBJECT_VAR_ELEMENT, /*=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE)
+	)
+#endif
+	{
+		changetail_or_append(*code,
+			OP::OP_GET_ELEMENT, false,  /*=>*/OP::OP_GET_ELEMENT__WRITE,
+			/*or */OP::OP_WRITE_VALUE
+			); /* value=pop; wcontext.write(value) */
+	}
+
+	P(*yyval, *code);
 ;}
     break;
 
   case 38:
-#line 307 "compile.y"
+#line 360 "compile.y"
     { yyval=yyvsp[0] ;}
     break;
 
   case 41:
-#line 309 "compile.y"
+#line 362 "compile.y"
     { yyval=yyvsp[-1] ;}
     break;
 
   case 44:
-#line 313 "compile.y"
+#line 366 "compile.y"
     {
 	yyval=N(); 
-	ArrayOperation* diving_code=yyvsp[0];
-	const String* first_name=LA2S(*diving_code);
-	// self.xxx... -> xxx...
-	// OP_VALUE+origin+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
-	if(first_name && *first_name==SELF_ELEMENT_NAME) {
-		O(*yyval, OP_WITH_SELF); /* stack: starting context */
-		P(*yyval, *diving_code, 
-			/* skip over... */
-			diving_code->count()>=4?4/*OP_VALUE+origin+string+OP_GET_ELEMENTx*/:3/*OP_+origin+string*/);
+	YYSTYPE diving_code=yyvsp[0];
+	size_t count=diving_code->count();
+
+	if(maybe_make_self(*yyval, *diving_code, count)) {
+		// $self.
+	} else
+
+#ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
+	if(maybe_make_get_object_element(*yyval, *diving_code, count)){
+		// optimization for $object.field + ^object.method[
+	} else
+#endif
+
+#ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
+	if(maybe_make_get_object_var_element(*yyval, *diving_code, count)){
+		// optimization for $object.$var
+	} else
+#endif
+
+#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
+	if(count>=4){ // optimization
+		O(*yyval,
+			(PC.in_call_value && count==4)
+			? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
+			: OP::OP_VALUE__GET_ELEMENT             // $object  : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
+		);
+		P(*yyval, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
+		if(count>4)
+			P(*yyval, *diving_code, 4); // copy tail
 	} else {
-		O(*yyval, OP_WITH_READ); /* stack: starting context */
+		O(*yyval, OP::OP_WITH_READ); /* stack: starting context */
+		P(*yyval, *diving_code);
+	}
+#else
+	{
+		O(*yyval, OP::OP_WITH_READ); /* stack: starting context */
 
-		// ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR
-		// OP_VALUE+origin+string+OP_GET_ELEMENT. -> OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
-		if(PC.in_call_value && diving_code->count()==4)
-			diving_code->put(4-1, OP_GET_ELEMENT_OR_OPERATOR);
+		// ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
+		// optimized OP_VALUE+origin+string+OP_GET_ELEMENT. => OP_VALUE+origin+string+OP_GET_ELEMENT_OR_OPERATOR.
+		if(PC.in_call_value && count==4)
+			diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
 		P(*yyval, *diving_code);
 	}
+#endif
 	/* diving code; stack: current context */
 ;}
     break;
 
   case 45:
-#line 335 "compile.y"
+#line 414 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 47:
-#line 336 "compile.y"
+#line 415 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 48:
-#line 340 "compile.y"
+#line 419 "compile.y"
     {
-	yyval=yyvsp[-1]; /* stack: context,name */
-	P(*yyval, *yyvsp[0]); /* stack: context,name,constructor_value */
+	yyval=N();
+#ifdef OPTIMIZE_BYTECODE_CONSTRUCT
+	if(maybe_optimize_construct(*yyval, *yyvsp[-1], *yyvsp[0])){
+		// $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
+	} else 
+#endif
+	{
+		P(*yyval, *yyvsp[-1]); /* stack: context,name */
+		P(*yyval, *yyvsp[0]); /* stack: context,name,constructor_value */
+	}
 ;}
     break;
 
   case 52:
-#line 348 "compile.y"
+#line 435 "compile.y"
     {
 	yyval=N();
-	ArrayOperation* diving_code=yyvsp[0];
-	const String* first_name=LA2S(*diving_code);
-	// $self.xxx... -> $xxx...
-	// OP_VALUE+origin+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...
-	if(first_name && *first_name==SELF_ELEMENT_NAME) {
-		O(*yyval, OP_WITH_SELF); /* stack: starting context */
-		P(*yyval, *diving_code, 
-			/* skip over... */
-			diving_code->count()>=4?4/*OP_VALUE+origin+string+OP_GET_ELEMENTx*/:3/*OP_+origin+string*/);
-	} else {
-		O(*yyval, OP_WITH_ROOT); /* stack: starting context */
+	YYSTYPE diving_code=yyvsp[0];
+	size_t count=diving_code->count();
+
+	if(maybe_make_self(*yyval, *diving_code, count)) {
+		// $self.
+	} else
+#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
+	if(
+		count>=4
+		&& (*diving_code)[0].code==OP::OP_VALUE
+		&& (*diving_code)[3].code==OP::OP_GET_ELEMENT
+	){
+		O(*yyval, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
+		P(*yyval, *diving_code, 1/*offset*/, 2/*limit*/); // copy origin+value
+		if(count>4)
+			P(*yyval, *diving_code, 4); // tail
+	} else
+#endif
+	{
+		O(*yyval, OP::OP_WITH_ROOT); /* stack: starting context */
 		P(*yyval, *diving_code);
 	}
 	/* diving code; stack: current context */
@@ -1688,21 +1784,21 @@ yyreduce:
     break;
 
   case 53:
-#line 365 "compile.y"
+#line 461 "compile.y"
     {
 	yyval=N(); 
-	O(*yyval, OP_WITH_WRITE); /* stack: starting context */
+	O(*yyval, OP::OP_WITH_WRITE); /* stack: starting context */
 	P(*yyval, *yyvsp[0]); /* diving code; stack: context,name */
 ;}
     break;
 
   case 54:
-#line 370 "compile.y"
+#line 466 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 58:
-#line 377 "compile.y"
+#line 473 "compile.y"
     {
 	// allow $result_or_other_variable[ letters here any time ]
 	*reinterpret_cast<bool*>(&yyval)=PC.explicit_result; PC.explicit_result=false;
@@ -1710,103 +1806,120 @@ yyreduce:
     break;
 
   case 59:
-#line 380 "compile.y"
+#line 476 "compile.y"
     {
 	PC.explicit_result=*reinterpret_cast<bool*>(&yyvsp[-1]);
 ;}
     break;
 
   case 60:
-#line 382 "compile.y"
+#line 478 "compile.y"
     {
 	// stack: context, name
 	yyval=yyvsp[-2]; // stack: context, name, value
-	O(*yyval, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
+	O(*yyval, OP::OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */
 ;}
     break;
 
   case 61:
-#line 388 "compile.y"
+#line 484 "compile.y"
     { 
 	yyval=N(); 
-	O(*yyval, OP_PREPARE_TO_EXPRESSION);
+	O(*yyval, OP::OP_PREPARE_TO_EXPRESSION);
 	// stack: context, name
 	P(*yyval, *yyvsp[-1]); // stack: context, name, value
-	O(*yyval, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
+	O(*yyval, OP::OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
 ;}
     break;
 
   case 62:
-#line 396 "compile.y"
+#line 492 "compile.y"
     {
 	// stack: context, name
 	yyval=N(); 
-	OA(*yyval, OP_CURLY_CODE__CONSTRUCT, yyvsp[-1]); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
+	OA(*yyval, OP::OP_CURLY_CODE__CONSTRUCT, yyvsp[-1]); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
 ;}
     break;
 
   case 66:
-#line 407 "compile.y"
+#line 503 "compile.y"
     {
 	yyval=N(); 
-	OA(*yyval, OP_OBJECT_POOL, yyvsp[0]); /* stack: empty write context */
+	OA(*yyval, OP::OP_OBJECT_POOL, yyvsp[0]); /* stack: empty write context */
 	/* some code that writes to that context */
 	/* context=pop; stack: context.value() */
 ;}
     break;
 
   case 69:
-#line 414 "compile.y"
+#line 510 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 70:
-#line 418 "compile.y"
+#line 514 "compile.y"
     {
-	yyval=yyvsp[0]; /* stack: value */
-	changetail_or_append(*yyval, 
-		OP_CALL, true,  /*->*/ OP_CALL__WRITE,
-		/*or */OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
+#ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
+	if((*yyvsp[0]).count())
+#endif
+	{
+		yyval=yyvsp[0]; /* stack: value */
+		changetail_or_append(*yyval, 
+			OP::OP_CALL, true,  /*=>*/ OP::OP_CALL__WRITE,
+			/*or */OP::OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */
+	}
 ;}
     break;
 
   case 71:
-#line 424 "compile.y"
+#line 525 "compile.y"
     { 
 					PC.in_call_value=true; 
 			;}
     break;
 
   case 72:
-#line 427 "compile.y"
+#line 528 "compile.y"
     {
 				PC.in_call_value=false;
 			;}
     break;
 
   case 73:
-#line 430 "compile.y"
+#line 531 "compile.y"
     { /* ^field.$method{vasya} */
-	yyval=yyvsp[-3]; /* with_xxx,diving code; stack: context,method_junction */
+#ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
+#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
+	const String* operator_name=LA2S(*yyvsp[-3], 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
+#else
+	const String* operator_name=LA2S(*yyvsp[-3], 1);
+#endif
+	if(operator_name && *operator_name == REM_OPERATOR_NAME){
+		yyval=N();
+	} else 
+#endif
+		{
+			yyval=yyvsp[-3]; /* with_xxx,diving code; stack: context,method_junction */
 
-	YYSTYPE params_code=yyvsp[-1];
-	if(params_code->count()==4) { // probably [] case. [OP_VALUE+origin+Void+STORE_PARAM]
-		if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
-			if(value->is_void()) // value is VVoid?
-				params_code=0; // ^zzz[] case. don't append lone empty param.
-	}
-	/* stack: context, method_junction */
-	OA(*yyval, OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
+			YYSTYPE params_code=yyvsp[-1];
+			if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
+				if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
+					if(value->is_void()) // value is VVoid?
+						params_code=0; // ^zzz[] case. don't append lone empty param.
+			}
+			/* stack: context, method_junction */
+			OA(*yyval, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
+		}
 ;}
     break;
 
   case 76:
-#line 445 "compile.y"
+#line 558 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 80:
-#line 451 "compile.y"
+#line 564 "compile.y"
     {
 	// allow ^call[ letters here any time ]
 	*reinterpret_cast<bool*>(&yyval)=PC.explicit_result; PC.explicit_result=false;
@@ -1814,131 +1927,129 @@ yyreduce:
     break;
 
   case 81:
-#line 454 "compile.y"
+#line 567 "compile.y"
     {
 	PC.explicit_result=*reinterpret_cast<bool*>(&yyvsp[-1]);
 ;}
     break;
 
   case 82:
-#line 456 "compile.y"
+#line 569 "compile.y"
     {yyval=yyvsp[-2];}
     break;
 
   case 83:
-#line 457 "compile.y"
+#line 570 "compile.y"
     {yyval=yyvsp[-1];}
     break;
 
   case 84:
-#line 458 "compile.y"
+#line 571 "compile.y"
     {yyval=yyvsp[-1];}
     break;
 
   case 86:
-#line 461 "compile.y"
+#line 574 "compile.y"
     { yyval=yyvsp[-2]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 88:
-#line 465 "compile.y"
+#line 578 "compile.y"
     { yyval=yyvsp[-2]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 90:
-#line 469 "compile.y"
+#line 582 "compile.y"
     { yyval=yyvsp[-2]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 91:
-#line 471 "compile.y"
+#line 584 "compile.y"
     {
 	yyval=yyvsp[0];
-	O(*yyval, OP_STORE_PARAM);
 ;}
     break;
 
   case 92:
-#line 475 "compile.y"
+#line 587 "compile.y"
     {
 	YYSTYPE expr_code=yyvsp[0];
 	if(expr_code->count()==3
-		&& (*expr_code)[0].code==OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP_VALUE+origin+Double]
+		&& (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
 		yyval=expr_code; 
-		O(*yyval, OP_STORE_PARAM); // no evaluating
 	} else {
-		ArrayOperation* code=N();
-		O(*code, OP_PREPARE_TO_EXPRESSION);
+		YYSTYPE code=N();
+		O(*code, OP::OP_PREPARE_TO_EXPRESSION);
 		P(*code, *expr_code);
-		O(*code, OP_WRITE_EXPR_RESULT);
+		O(*code, OP::OP_WRITE_EXPR_RESULT);
 		yyval=N(); 
-		OA(*yyval, OP_EXPR_CODE__STORE_PARAM, code);
+		OA(*yyval, OP::OP_EXPR_CODE__STORE_PARAM, code);
 	}
 ;}
     break;
 
   case 93:
-#line 490 "compile.y"
+#line 601 "compile.y"
     {
 	yyval=N(); 
-	OA(*yyval, OP_CURLY_CODE__STORE_PARAM, yyvsp[0]);
+	OA(*yyval, OP::OP_CURLY_CODE__STORE_PARAM, yyvsp[0]);
 ;}
     break;
 
   case 98:
-#line 502 "compile.y"
+#line 613 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 100:
-#line 504 "compile.y"
+#line 615 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 102:
-#line 506 "compile.y"
+#line 617 "compile.y"
     {
 	// we know that name_advance1 not called from ^xxx context
 	// so we'll not check for operator call possibility as we do in name_advance2
 
 	/* stack: context */
 	yyval=yyvsp[0]; /* stack: context,name */
-	O(*yyval, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
+	O(*yyval, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
 ;}
     break;
 
   case 103:
-#line 514 "compile.y"
+#line 625 "compile.y"
     {
 	/* stack: context */
 	yyval=yyvsp[0]; /* stack: context,name */
-	O(*yyval, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
+	O(*yyval, OP::OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */
 ;}
     break;
 
   case 109:
-#line 527 "compile.y"
+#line 638 "compile.y"
     {
 	yyval=yyvsp[0];
-	O(*yyval, OP_GET_ELEMENT);
+	O(*yyval, OP::OP_GET_ELEMENT);
 ;}
     break;
 
   case 110:
-#line 531 "compile.y"
+#line 642 "compile.y"
     {
-	ArrayOperation* code;
+	YYSTYPE code;
 	{
 		change_string_literal_to_write_string_literal(*(code=yyvsp[-1]));
 		P(*code, *yyvsp[0]);
 	}
 	yyval=N(); 
-	OA(*yyval, OP_STRING_POOL, code);
+	OA(*yyval, OP::OP_STRING_POOL, code);
 ;}
     break;
 
   case 111:
-#line 540 "compile.y"
+#line 651 "compile.y"
     {
 	// allow $result_or_other_variable[ letters here any time ]
 	*reinterpret_cast<bool*>(&yyval)=PC.explicit_result; PC.explicit_result=false;
@@ -1946,46 +2057,46 @@ yyreduce:
     break;
 
   case 112:
-#line 543 "compile.y"
+#line 654 "compile.y"
     {
 	PC.explicit_result=*reinterpret_cast<bool*>(&yyvsp[-1]);
 ;}
     break;
 
   case 113:
-#line 545 "compile.y"
+#line 656 "compile.y"
     {
 	yyval=N(); 
-	OA(*yyval, OP_OBJECT_POOL, yyvsp[-2]); /* stack: empty write context */
+	OA(*yyval, OP::OP_OBJECT_POOL, yyvsp[-2]); /* stack: empty write context */
 	/* some code that writes to that context */
 	/* context=pop; stack: context.value() */
 ;}
     break;
 
   case 114:
-#line 551 "compile.y"
+#line 662 "compile.y"
     {
 	yyval=N(); 
-	O(*yyval, OP_WITH_READ);
+	O(*yyval, OP::OP_WITH_READ);
 	P(*yyval, *yyvsp[0]);
 ;}
     break;
 
   case 116:
-#line 556 "compile.y"
+#line 667 "compile.y"
     { yyval=yyvsp[-1]; P(*yyval, *yyvsp[0]) ;}
     break;
 
   case 117:
-#line 557 "compile.y"
+#line 668 "compile.y"
     {
 	yyval=yyvsp[0];
-	O(*yyval, OP_GET_ELEMENT__WRITE);
+	O(*yyval, OP::OP_GET_ELEMENT__WRITE);
 ;}
     break;
 
   case 120:
-#line 566 "compile.y"
+#line 677 "compile.y"
     {
 	yyval=yyvsp[-1]; // stack: class name string
 	if(*LA2S(*yyval) == BASE_NAME) { // pseudo BASE class
@@ -1996,255 +2107,272 @@ yyreduce:
 			YYERROR;
 		}
 	}
-	O(*yyval, OP_GET_CLASS);
+#ifdef OPTIMIZE_BYTECODE_GET_CLASS
+	// optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
+	maybe_change_first_opcode(*yyval, OP::OP_VALUE, OP::OP_VALUE__GET_CLASS)
+#else
+	O(*yyval, OP::OP_GET_CLASS);
+#endif
 ;}
     break;
 
   case 121:
-#line 578 "compile.y"
+#line 694 "compile.y"
     {
 	yyval=yyvsp[-1];
 	if(!PC.in_call_value) {
 		strcpy(PC.error, ":: not allowed here");
 		YYERROR;
 	}
-	O(*yyval, OP_PREPARE_TO_CONSTRUCT_OBJECT);
+	O(*yyval, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
 ;}
     break;
 
   case 128:
-#line 597 "compile.y"
+#line 713 "compile.y"
     { yyval = yyvsp[-1] ;}
     break;
 
   case 129:
-#line 598 "compile.y"
+#line 714 "compile.y"
     { yyval = yyvsp[-1] ;}
     break;
 
   case 130:
-#line 599 "compile.y"
+#line 715 "compile.y"
     { yyval = yyvsp[-1]; ;}
     break;
 
   case 131:
-#line 601 "compile.y"
-    { yyval=yyvsp[0];  O(*yyval, OP_NEG) ;}
+#line 717 "compile.y"
+    { yyval=yyvsp[0];  O(*yyval, OP::OP_NEG) ;}
     break;
 
   case 132:
-#line 602 "compile.y"
+#line 718 "compile.y"
     { yyval=yyvsp[0] ;}
     break;
 
   case 133:
-#line 603 "compile.y"
-    { yyval=yyvsp[0];	 O(*yyval, OP_INV) ;}
+#line 719 "compile.y"
+    { yyval=yyvsp[0];	 O(*yyval, OP::OP_INV) ;}
     break;
 
   case 134:
-#line 604 "compile.y"
-    { yyval=yyvsp[0];  O(*yyval, OP_NOT) ;}
+#line 720 "compile.y"
+    { yyval=yyvsp[0];  O(*yyval, OP::OP_NOT) ;}
     break;
 
   case 135:
-#line 605 "compile.y"
-    { yyval=yyvsp[0];  O(*yyval, OP_DEF) ;}
+#line 721 "compile.y"
+    { yyval=yyvsp[0];  O(*yyval, OP::OP_DEF) ;}
     break;
 
   case 136:
-#line 606 "compile.y"
-    { yyval=yyvsp[0];  O(*yyval, OP_IN) ;}
+#line 722 "compile.y"
+    { yyval=yyvsp[0];  O(*yyval, OP::OP_IN) ;}
     break;
 
   case 137:
-#line 607 "compile.y"
-    { yyval=yyvsp[0];  O(*yyval, OP_FEXISTS) ;}
+#line 723 "compile.y"
+    { yyval=yyvsp[0];  O(*yyval, OP::OP_FEXISTS) ;}
     break;
 
   case 138:
-#line 608 "compile.y"
-    { yyval=yyvsp[0];  O(*yyval, OP_DEXISTS) ;}
+#line 724 "compile.y"
+    { yyval=yyvsp[0];  O(*yyval, OP::OP_DEXISTS) ;}
     break;
 
   case 139:
-#line 610 "compile.y"
-    {	yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_SUB) ;}
+#line 726 "compile.y"
+    {	yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_SUB) ;}
     break;
 
   case 140:
-#line 611 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_ADD) ;}
+#line 727 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_ADD) ;}
     break;
 
   case 141:
-#line 612 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_MUL) ;}
+#line 728 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_MUL) ;}
     break;
 
   case 142:
-#line 613 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_DIV) ;}
+#line 729 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_DIV) ;}
     break;
 
   case 143:
-#line 614 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_MOD) ;}
+#line 730 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_MOD) ;}
     break;
 
   case 144:
-#line 615 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_INTDIV) ;}
+#line 731 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_INTDIV) ;}
     break;
 
   case 145:
-#line 616 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_BIN_SL) ;}
+#line 732 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_BIN_SL) ;}
     break;
 
   case 146:
-#line 617 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_BIN_SR) ;}
+#line 733 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_BIN_SR) ;}
     break;
 
   case 147:
-#line 618 "compile.y"
-    { yyval=yyvsp[-2]; 	P(*yyval, *yyvsp[0]);  O(*yyval, OP_BIN_AND) ;}
+#line 734 "compile.y"
+    { yyval=yyvsp[-2]; 	P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_BIN_AND) ;}
     break;
 
   case 148:
-#line 619 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_BIN_OR) ;}
+#line 735 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_BIN_OR) ;}
     break;
 
   case 149:
-#line 620 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_BIN_XOR) ;}
+#line 736 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_BIN_XOR) ;}
     break;
 
   case 150:
-#line 621 "compile.y"
-    { yyval=yyvsp[-2];  OA(*yyval, OP_NESTED_CODE, yyvsp[0]);  O(*yyval, OP_LOG_AND) ;}
+#line 737 "compile.y"
+    { yyval=yyvsp[-2];  OA(*yyval, OP::OP_NESTED_CODE, yyvsp[0]);  O(*yyval, OP::OP_LOG_AND) ;}
     break;
 
   case 151:
-#line 622 "compile.y"
-    { yyval=yyvsp[-2];  OA(*yyval, OP_NESTED_CODE, yyvsp[0]);  O(*yyval, OP_LOG_OR) ;}
+#line 738 "compile.y"
+    { yyval=yyvsp[-2];  OA(*yyval, OP::OP_NESTED_CODE, yyvsp[0]);  O(*yyval, OP::OP_LOG_OR) ;}
     break;
 
   case 152:
-#line 623 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_LOG_XOR) ;}
+#line 739 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_LOG_XOR) ;}
     break;
 
   case 153:
-#line 624 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_NUM_LT) ;}
+#line 740 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_NUM_LT) ;}
     break;
 
   case 154:
-#line 625 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_NUM_GT) ;}
+#line 741 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_NUM_GT) ;}
     break;
 
   case 155:
-#line 626 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_NUM_LE) ;}
+#line 742 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_NUM_LE) ;}
     break;
 
   case 156:
-#line 627 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_NUM_GE) ;}
+#line 743 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_NUM_GE) ;}
     break;
 
   case 157:
-#line 628 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_NUM_EQ) ;}
+#line 744 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_NUM_EQ) ;}
     break;
 
   case 158:
-#line 629 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_NUM_NE) ;}
+#line 745 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_NUM_NE) ;}
     break;
 
   case 159:
-#line 630 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_STR_LT) ;}
+#line 746 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_STR_LT) ;}
     break;
 
   case 160:
-#line 631 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_STR_GT) ;}
+#line 747 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_STR_GT) ;}
     break;
 
   case 161:
-#line 632 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_STR_LE) ;}
+#line 748 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_STR_LE) ;}
     break;
 
   case 162:
-#line 633 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_STR_GE) ;}
+#line 749 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_STR_GE) ;}
     break;
 
   case 163:
-#line 634 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_STR_EQ) ;}
+#line 750 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_STR_EQ) ;}
     break;
 
   case 164:
-#line 635 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_STR_NE) ;}
+#line 751 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_STR_NE) ;}
     break;
 
   case 165:
-#line 636 "compile.y"
-    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP_IS) ;}
+#line 752 "compile.y"
+    { yyval=yyvsp[-2];  P(*yyval, *yyvsp[0]);  O(*yyval, OP::OP_IS) ;}
     break;
 
   case 166:
-#line 639 "compile.y"
+#line 755 "compile.y"
     {
-	// optimized from OP_STRING->OP_VALUE for doubles
+	// optimized OP_STRING => OP_VALUE for doubles
 	maybe_change_string_literal_to_double_literal(*(yyval=yyvsp[0]));
 ;}
     break;
 
   case 167:
-#line 644 "compile.y"
+#line 760 "compile.y"
     {
+#ifdef OPTIMIZE_BYTECODE_STRING_POOL
+	// it brakes ^if(" 09 "){...}
+	YYSTYPE code=yyvsp[0];
+	yyval=N();
+	if(code->count()==3 && maybe_change_first_opcode(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
+		// optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
+		P(*yyval, *code);
+	} else {
+		OA(*yyval, OP::OP_STRING_POOL, code); /* stack: empty write context */
+	}
+#else
 	yyval=N();
-	OA(*yyval, OP_STRING_POOL, yyvsp[0]); /* stack: empty write context */
+	OA(*yyval, OP::OP_STRING_POOL, yyvsp[0]); /* stack: empty write context */
+#endif
 	/* some code that writes to that context */
 	/* context=pop; stack: context.get_string() */
 ;}
     break;
 
   case 168:
-#line 653 "compile.y"
+#line 781 "compile.y"
     {
-	// optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE
+	// optimized OP_STRING+OP_WRITE_VALUE => OP_STRING__WRITE
 	change_string_literal_to_write_string_literal(*(yyval=yyvsp[0]))
 ;}
     break;
 
   case 169:
-#line 658 "compile.y"
+#line 786 "compile.y"
     { yyval=VL(/*we know that we will not change it*/const_cast<VVoid*>(&vvoid), 0, 0, 0) ;}
     break;
 
   case 170:
-#line 659 "compile.y"
+#line 787 "compile.y"
     { yyval = VL(/*we know that we will not change it*/const_cast<VBool*>(&vtrue), 0, 0, 0) ;}
     break;
 
   case 171:
-#line 660 "compile.y"
+#line 788 "compile.y"
     { yyval = VL(/*we know that we will not change it*/const_cast<VBool*>(&vfalse), 0, 0, 0) ;}
     break;
 
   case 172:
-#line 662 "compile.y"
+#line 790 "compile.y"
     { yyval=N() ;}
     break;
 
@@ -2252,7 +2380,7 @@ yyreduce:
     }
 
 /* Line 1010 of yacc.c.  */
-#line 2256 "compile.tab.C"
+#line 2384 "compile.tab.C"
 
   yyvsp -= yylen;
   yyssp -= yylen;
@@ -2477,7 +2605,7 @@ yyreturn:
 }
 
 
-#line 664 "compile.y"
+#line 792 "compile.y"
 
 #endif
 
@@ -2570,7 +2698,7 @@ case LS_DEF_COMMENT:
 default:
 			switch(*pc.source) {
 			// ^escaping some punctuators
-			case '^': case '$': case ';':
+			case '^': case '$': case ';': case '@':
 			case '(': case ')':
 			case '[': case ']':
 			case '{': case '}':
@@ -2598,7 +2726,7 @@ default:
 					pc.string.append_strdup_know_length(begin, end-begin);
 				}
 				// #HH ?
-				if(pc.source[0]=='#' && pc.source[1] && pc.source[2]) {
+				if(pc.source[1] && isxdigit(pc.source[1]) && pc.source[2] && isxdigit(pc.source[2])) {
 					char c=(char)(
 						hex_value[(unsigned char)pc.source[1]]*0x10+
 						hex_value[(unsigned char)pc.source[2]]);
@@ -2617,7 +2745,14 @@ default:
 					// skip analysis = forced literal
 					continue;
 				}
-				break;
+				// just escaped char
+				// reset piece 'begin' position & line
+				begin=pc.source;
+				begin_pos=pc.pos;
+				// skip over _ after ^
+				pc.source++;  pc.pos.col++;
+				// skip analysis = forced literal
+				continue;
 			}
 			break;
 			}