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Diff for /parser3/src/main/compile.y between versions 1.213 and 1.289

version 1.213, 2004/04/06 14:17:17	version 1.289, 2017/02/07 22:00:40
Line 2	Line 2
/** @file	/** @file
Parser: compiler(lexical parser and grammar).	Parser: compiler(lexical parser and grammar).

Copyright (c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com)	Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com)
Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)

$Id$
*/	*/

	volatile const char * IDENT_COMPILE_Y = "$Id$";

/**	/**
@todo parser4:	@todo parser4:
- cache compiled code from request to request. to do that...	- cache compiled code from request to request. to do that...
Line 20	Line 22
*/	*/

#define YYSTYPE ArrayOperation*	#define YYSTYPE ArrayOperation*
#define YYPARSE_PARAM pc
#define YYLEX_PARAM pc
#define YYDEBUG 1	#define YYDEBUG 1
#define YYERROR_VERBOSE 1	#define YYERROR_VERBOSE 1
#define yyerror(msg) real_yyerror((Parse_control *)pc, msg)	#define yyerror(pc, msg) real_yyerror(pc, msg)
#define YYPRINT(file, type, value) yyprint(file, type, value)	#define YYPRINT(file, type, value) yyprint(file, type, value)
	#define YYMALLOC pa_malloc
	#define YYFREE pa_free

// includes	// includes

Line 35	Line 37
#include "pa_vobject.h"	#include "pa_vobject.h"
#include "pa_vdouble.h"	#include "pa_vdouble.h"
#include "pa_globals.h"	#include "pa_globals.h"
#include "pa_vvoid.h"
#include "pa_vmethod_frame.h"	#include "pa_vmethod_frame.h"

// defines	// defines

	#define CLASS_NAME "CLASS"
#define USE_CONTROL_METHOD_NAME "USE"	#define USE_CONTROL_METHOD_NAME "USE"
	#define OPTIONS_CONTROL_METHOD_NAME "OPTIONS"

// forwards	// forwards

static int real_yyerror(Parse_control* pc, char* s);	static int real_yyerror(Parse_control* pc, const char* s);
static void yyprint(FILE* file, int type, YYSTYPE value);	static void yyprint(FILE* file, int type, YYSTYPE value);
static int yylex(YYSTYPE* lvalp, void* pc);	static int yylex(YYSTYPE* lvalp, void* pc);

	static const VBool vfalse(false);
	static const VBool vtrue(true);
	static const VString vempty;

// local convinient inplace typecast & var	// local convinient inplace typecast & var
#undef PC	#undef PC
#define PC ((Parse_control )pc)	#define PC (*pc)
#undef POOL	#undef POOL
#define POOL (*PC.pool)	#define POOL (*PC.pool)
#ifndef DOXYGEN	#ifndef DOXYGEN

	#define CLASS_ADD if(PC.class_add()){ \
	strncpy(PC.error, PC.cclass->type(), MAX_STRING/2); \
	strcat(PC.error, " - class is already defined"); \
	YYERROR; \
	}

	#define PC_ERROR(header, value, footer){ \
	strcpy(PC.error, header); \
	strncat(PC.error, value, MAX_STRING/2); \
	strcat(PC.error, footer); \
	}

%}	%}

%pure_parser	%pure-parser
	%lex-param {Parse_control* pc}
	%parse-param {Parse_control* pc}

%token EON	%token EON
%token STRING	%token STRING
Line 66 static int yylex(YYSTYPE* lvalp, void* p	Line 88 static int yylex(YYSTYPE* lvalp, void* p
%token BAD_HEX_LITERAL	%token BAD_HEX_LITERAL
%token BAD_METHOD_DECL_START	%token BAD_METHOD_DECL_START
%token BAD_METHOD_PARAMETER_NAME_CHARACTER	%token BAD_METHOD_PARAMETER_NAME_CHARACTER
%token BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE

%token LAND "&&"	%token LAND "&&"
%token LOR "\|\|"	%token LOR "\|\|"
Line 93 static int yylex(YYSTYPE* lvalp, void* p	Line 114 static int yylex(YYSTYPE* lvalp, void* p
%token DEXISTS "-d"	%token DEXISTS "-d"
%token IS "is"	%token IS "is"

	%token LITERAL_TRUE "true"
	%token LITERAL_FALSE "false"

/* logical */	/* logical */
%left "!\|\|"	%left "!\|\|"
%left "\|\|"	%left "\|\|"
Line 119 static int yylex(YYSTYPE* lvalp, void* p	Line 143 static int yylex(YYSTYPE* lvalp, void* p
%%	%%
all:	all:
one_big_piece {	one_big_piece {
Method& method=*new Method(Method::CT_ANY,	Method* method=new Method(Method::CT_ANY, 0, 0 /min, max numbered_params_count/, 0 /param_names/, 0 /local_names/, $1 /parser_code/, 0 /native_code/, PC.cclass->is_vars_local());
0, 0, /min, max numbered_params_count/	PC.cclass->set_method(PC.alias_method(main_method_name), method);
0/param_names/, 0/local_names/,
$1/parser_code/, 0/native_code/);
PC.cclass->add_method(PC.alias_method(main_method_name), method);
}	}
\| methods;	\| methods;

Line 134 method: control_method \| code_method;	Line 155 method: control_method \| code_method;

control_method: '@' STRING '\n'	control_method: '@' STRING '\n'
maybe_control_strings {	maybe_control_strings {
const String& command=LA2S($2);	const String& command=LA2S(*$2)->trim(String::TRIM_END);
YYSTYPE strings_code=$4;	YYSTYPE strings_code=$4;
if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {	if(strings_code->count()<1*OPERATIONS_PER_OPVALUE) {
strcpy(PC.error, "@");	PC_ERROR("@", command.cstr(), " is empty");
strcat(PC.error, command.cstr());
strcat(PC.error, " is empty");
YYERROR;	YYERROR;
}	}
if(command==CLASS_NAME) {	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) {	if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
	CLASS_ADD;
// new class' name	// new class' name
const String& name=LA2S(strings_code);	const String& name=LA2S(*strings_code)->trim(String::TRIM_END);
// creating the class	// creating the class
VStateless_class* cclass=new VClass;	VStateless_class* cclass=new VClass(name.cstr(), PC.request.get_used_filespec(PC.file_no));
PC.cclass=cclass;	PC.cclass_new=cclass;
PC.cclass->set_name(name);	PC.append=false;
// append to request's classes
PC.request.classes().put(name, cclass);
} else {	} else {
strcpy(PC.error, "@"CLASS_NAME" must contain only one line with class name (contains more then one)");	strcpy(PC.error, "@" CLASS_NAME " must contain only one line with class name (contains more then one)");
YYERROR;	YYERROR;
}	}
} else if(command==USE_CONTROL_METHOD_NAME) {	} else if(command==USE_CONTROL_METHOD_NAME) {
for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE)	CLASS_ADD;
PC.request.use_file(PC.request.main_class, LA2S(strings_code, i));	for(size_t i=0; i<strings_code->count(); i+=OPERATIONS_PER_OPVALUE){
	PC.request.use_file(LA2S(*strings_code, i)->trim(String::TRIM_END), PC.request.get_used_filespec(PC.file_no), strings_code->get(i+1).origin);
	}
} else if(command==BASE_NAME) {	} else if(command==BASE_NAME) {
	if(PC.append){
	PC_ERROR("can't set base while appending methods to class '", PC.cclass->type(), "'");
	YYERROR;
	}
	CLASS_ADD;
if(PC.cclass->base_class()) { // already changed from default?	if(PC.cclass->base_class()) { // already changed from default?
strcpy(PC.error, "class already have a base '");	PC_ERROR("class already have a base '", PC.cclass->base_class()->type(), "'");
strncat(PC.error, PC.cclass->base_class()->name().cstr(), 100);
strcat(PC.error, "'");
YYERROR;	YYERROR;
}	}
if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {	if(strings_code->count()==1*OPERATIONS_PER_OPVALUE) {
const String& base_name=LA2S(strings_code);	const String& base_name=LA2S(*strings_code)->trim(String::TRIM_END);
if(Value* base_class_value=PC.request.classes().get(base_name)) {	if(VStateless_class *base_class=PC.request.get_class(base_name)) {
// @CLASS == @BASE sanity check	// @CLASS == @BASE sanity check
if(VStateless_class *base_class=base_class_value->get_class()) {	if(PC.cclass==base_class) {
if(PC.cclass==base_class) {	strcpy(PC.error, "@" CLASS_NAME " equals @" BASE_NAME);
strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME);
YYERROR;
}
PC.cclass->get_class()->set_base(base_class);
} else { // they asked to derive from a class without methods ['env' & co]
strcpy(PC.error, base_name.cstr());
strcat(PC.error, ": you can not derive from this class in @"BASE_NAME);
YYERROR;	YYERROR;
}	}
	PC.cclass->get_class()->set_base(base_class);
} else {	} else {
strcpy(PC.error, base_name.cstr());	PC_ERROR("'", base_name.cstr(), "': undefined class in @" BASE_NAME);
strcat(PC.error, ": undefined class in @"BASE_NAME);
YYERROR;	YYERROR;
}	}
} else {	} else {
strcpy(PC.error, "@"BASE_NAME" must contain sole name");	strcpy(PC.error, "@" BASE_NAME " must contain sole name");
YYERROR;	YYERROR;
}	}
	} 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)->trim(String::TRIM_END);
	if(option==Symbols::LOCALS_SYMBOL){
	PC.set_all_vars_local();
	} else if(option==Symbols::PARTIAL_SYMBOL){
	if(PC.cclass_new){
	if(VStateless_class* existed=PC.get_existed_class(PC.cclass_new)){
	if(!PC.reuse_existed_class(existed)){
	PC_ERROR("can't append methods to '", PC.cclass_new->type(), "' - the class wasn't marked as partial");
	YYERROR;
	}
	} else {
	// marks the new class as partial. we will be able to add methods here later.
	PC.cclass_new->set_partial();
	}
	} else {
	strcpy(PC.error, "'partial' option should be used straight after @" CLASS_NAME);
	YYERROR;
	}
	} else if(option==Symbols::STATIC_SYMBOL){
	PC.set_methods_call_type(Method::CT_STATIC);
	} else if(option==Symbols::DYNAMIC_SYMBOL){
	PC.set_methods_call_type(Method::CT_DYNAMIC);
	} else {
	PC_ERROR("'", option.cstr(), "' invalid option. valid options are 'partial', 'locals', 'static' and 'dynamic'");
	YYERROR;
	}
	}
} else {	} else {
strcpy(PC.error, "'");	PC_ERROR("'", command.cstr(), "' invalid special name. valid names are '" CLASS_NAME "', '" USE_CONTROL_METHOD_NAME "', '" BASE_NAME "' and '" OPTIONS_CONTROL_METHOD_NAME "'.");
strncat(PC.error, command.cstr(), MAX_STRING/2);
strcat(PC.error, "' invalid special name. valid names are "
"'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"' and '"BASE_NAME"'");
YYERROR;	YYERROR;
}	}
};	};
maybe_control_strings: empty \| control_strings;	maybe_control_strings: empty \| control_strings;
control_strings: control_string \| control_strings control_string { $$=$1; P($$, $2) };	control_strings: control_string \| control_strings control_string { $$=$1; P($$, $2); };
control_string: maybe_string '\n';	control_string: maybe_string '\n';
maybe_string: empty \| STRING;	maybe_string: empty \| STRING;

code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {	code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' {
	CLASS_ADD;
PC.explicit_result=false;	PC.explicit_result=false;
const String& name=LA2S($2);

YYSTYPE params_names_code=$3;	YYSTYPE params_names_code=$3;
ArrayString* params_names=0;	ArrayString* params_names=0;
Line 223 code_method: '@' STRING bracketed_maybe_	Line 259 code_method: '@' STRING bracketed_maybe_

YYSTYPE locals_names_code=$4;	YYSTYPE locals_names_code=$4;
ArrayString* locals_names=0;	ArrayString* locals_names=0;
	bool all_vars_local=PC.cclass->is_vars_local();

if(int size=locals_names_code->count()) {	if(int size=locals_names_code->count()) {
locals_names=new ArrayString;	locals_names=new ArrayString;
for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {	for(int i=0; i<size; i+=OPERATIONS_PER_OPVALUE) {
const String* local_name=LA2S(*locals_names_code, i);	const String* local_name=LA2S(*locals_names_code, i);
if(*local_name==RESULT_VAR_NAME)	if(SYMBOLS_EQ(*local_name,RESULT_SYMBOL))
PC.explicit_result=true;	PC.explicit_result=true;
	else if(SYMBOLS_EQ(*local_name,LOCALS_SYMBOL))
	all_vars_local=true;
else	else
*locals_names+=local_name;	*locals_names+=local_name;
}	}
Line 236 code_method: '@' STRING bracketed_maybe_	Line 276 code_method: '@' STRING bracketed_maybe_

Method* method=new Method(	Method* method=new Method(
//name,	//name,
Method::CT_ANY,	GetMethodCallType(PC, *$2),
0, 0/min,max numbered_params_count/,	0, 0/min,max numbered_params_count/,
params_names, locals_names,	params_names, locals_names,
0/to be filled later in next {} /, 0);	0/to be filled later in next {} /, 0, all_vars_local);
PC.cclass->add_method(PC.alias_method(name), *method);
reinterpret_cast<Method*>(&$$)=method;

// todo: check [][;result;]	reinterpret_cast<Method*>(&$$)=method;
} maybe_codes {	} maybe_codes {
// fill in the code	Method* method=reinterpret_cast<Method*>($7);
reinterpret_cast<Method*>($7)->parser_code=$8;	// fill in the code
	method->parser_code=$8;

	// register in class
	const String& name=LA2S($2);
	PC.cclass->set_method(PC.alias_method(name), method);
};	};

maybe_bracketed_strings: empty \| bracketed_maybe_strings;	maybe_bracketed_strings: empty \| bracketed_maybe_strings;
bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2};	bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2;};
maybe_strings: empty \| strings;	maybe_strings: empty \| strings;
strings: STRING \| strings ';' STRING { $$=$1; P($$, $3) };	strings: STRING \| strings ';' STRING { $$=$1; P($$, $3); };

maybe_comment: empty \| STRING;	maybe_comment: empty \| STRING;

Line 260 maybe_comment: empty \| STRING;	Line 303 maybe_comment: empty \| STRING;

maybe_codes: empty \| codes;	maybe_codes: empty \| codes;

codes: code \| codes code { $$=$1; P($$, $2) };	codes: code \| codes code { $$=$1; P($$, $2); };
code: write_string \| action;	code: write_string \| action;
action: get \| put \| call;	action: get \| put \| call;

/* get */	/* get */

get: get_value {	get: get_value {
$$=$1; /* stack: resulting value */	$$=N();
changetail_or_append(*$$,	YYSTYPE code=$1;
OP_GET_ELEMENT, false, /->/OP_GET_ELEMENT__WRITE,	size_t count=code->count();
/or /OP_WRITE_VALUE
); /* value=pop; wcontext.write(value) */	#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
	if(count!=3 \|\| !change_first(code, OP::OP_VALUE__GET_ELEMENT, /=>*/OP::OP_VALUE__GET_ELEMENT__WRITE) )
	#endif

	#ifdef OPTIMIZE_BYTECODE_GET_SELF_ELEMENT
	if(count!=3 \|\| !change_first(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 \|\| !change_first(code, OP::OP_GET_OBJECT_ELEMENT, /=>*/OP::OP_GET_OBJECT_ELEMENT__WRITE) )
	#endif

	#ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
	if(count!=5 \|\| !change_first(code, OP::OP_GET_OBJECT_VAR_ELEMENT, /=>*/OP::OP_GET_OBJECT_VAR_ELEMENT__WRITE) )
	#endif

	#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
	if(!change(code, count-1/ last /, OP::OP_GET_ELEMENT__SPECIAL, /=>*/OP::OP_GET_ELEMENT__SPECIAL__WRITE) )
	#endif

	{
	change_or_append(code, count-1 / last /, OP::OP_GET_ELEMENT, /=>/OP::OP_GET_ELEMENT__WRITE, /or /OP::OP_WRITE_VALUE ); / value=pop; wcontext.write(value) */
	}

	P($$, code);
};	};
get_value: '$' get_name_value { $$=$2 };	get_value: '$' get_name_value { $$=$2; };
get_name_value: name_without_curly_rdive EON \| name_in_curly_rdive;	get_name_value: name_without_curly_rdive EON \| name_in_curly_rdive;
name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 };	name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2; };
name_without_curly_rdive:	name_without_curly_rdive:
name_without_curly_rdive_read	name_without_curly_rdive_read
\| name_without_curly_rdive_class;	\| name_without_curly_rdive_class;
name_without_curly_rdive_read: name_without_curly_rdive_code {	name_without_curly_rdive_read: name_without_curly_rdive_code {
$$=N();	$$=N();
ArrayOperation* diving_code=$1;	YYSTYPE diving_code=$1;
const String* first_name=LA2S(*diving_code);	size_t count=diving_code->count();
// self.xxx... -> xxx...
// OP_VALUE+origin+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...	if(maybe_make_self($$, diving_code, count)) {
if(first_name && *first_name==SELF_ELEMENT_NAME) {	// $self.
O(yyval, OP_WITH_SELF); / stack: starting context */	} else
P(yyval, diving_code,
/* skip over... */	#ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
diving_code->count()>=4?4/OP_VALUE+origin+string+OP_GET_ELEMENTx/:3/OP_+origin+string/);	if(maybe_make_get_object_element($$, 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($$, diving_code, count)){
	// optimization for $object.$var
	} else
	#endif

	#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
	if(count>=4 && (diving_code)[0].code==OP::OP_VALUE && (diving_code)[3].code==OP::OP_GET_ELEMENT ){
	// optimization
	O(*$$,
	(PC.in_call_value && count==4)
	? OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR // ^object[ : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT_OR_OPERATOR+origin+string
	: OP::OP_VALUE__GET_ELEMENT // $object : OP_VALUE+origin+string+OP_GET_ELEMENT => OP_VALUE__GET_ELEMENT+origin+string
	);
	P($$, diving_code, 1/offset/, 2/limit/); // copy origin+value
	if(count>4)
	P($$, diving_code, 4); // copy tail
} else {	} else {
O(yyval, OP_WITH_READ); / stack: starting context */	O($$, OP::OP_WITH_READ); / stack: starting context */
	P($$, diving_code);
	}
	#else
	{
	O($$, OP::OP_WITH_READ); / stack: starting context */

// ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR	// ^if OP_ELEMENT => ^if OP_ELEMENT_OR_OPERATOR
// OP_VALUE+origin+string+OP_GET_ELEMENT. -> OP_VALUE+origin+string+OP_GET_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 && diving_code->count()==4)	if(PC.in_call_value && count==4)
diving_code->put(4-1, OP_GET_ELEMENT_OR_OPERATOR);	diving_code->put(count-1, OP::OP_GET_ELEMENT_OR_OPERATOR);
P($$, diving_code);	P($$, diving_code);
}	}
	#endif
/* diving code; stack: current context */	/* diving code; stack: current context */
};	};
name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2) };	name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P($$, $2); };
name_without_curly_rdive_code: name_advance2 \| name_path name_advance2 { $$=$1; P($$, $2) };	name_without_curly_rdive_code: name_advance2 \| name_path name_advance2 { $$=$1; P($$, $2); };

/* put */	/* put */

put: '$' name_expr_wdive construct {	put: '$' name_expr_wdive construct {
$$=$2; /* stack: context,name */	$$=N();
P($$, $3); /* stack: context,name,constructor_value */	#ifdef OPTIMIZE_BYTECODE_CONSTRUCT
	if(maybe_optimize_construct($$, $2, *$3)){
	// $a(expr), $.a(expr), $a[value], $.a[value], $self.a[value], $self.a(expr)
	} else
	#endif
	{
	P($$, $2); /* stack: context,name */
	P($$, $3); /* stack: context,name,constructor_value */
	}
};	};
name_expr_wdive:	name_expr_wdive:
name_expr_wdive_root	name_expr_wdive_root
Line 316 name_expr_wdive:	Line 418 name_expr_wdive:
\| name_expr_wdive_class;	\| name_expr_wdive_class;
name_expr_wdive_root: name_expr_dive_code {	name_expr_wdive_root: name_expr_dive_code {
$$=N();	$$=N();
ArrayOperation* diving_code=$1;	YYSTYPE diving_code=$1;
const String* first_name=LA2S(*diving_code);	size_t count=diving_code->count();
// $self.xxx... -> $xxx...
// OP_VALUE+origin+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+...	if(maybe_make_self($$, diving_code, count)) {
if(first_name && *first_name==SELF_ELEMENT_NAME) {	// $self.
O($$, OP_WITH_SELF); / stack: starting context */	} else
P($$, diving_code,	#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
/* skip over... */	if(count>=4 && (diving_code)[0].code==OP::OP_VALUE && (diving_code)[3].code==OP::OP_GET_ELEMENT ){
diving_code->count()>=4?4/OP_VALUE+origin+string+OP_GET_ELEMENTx/:3/OP_+origin+string/);	O(*$$, OP::OP_WITH_ROOT__VALUE__GET_ELEMENT);
} else {	P($$, diving_code, 1/offset/, 2/limit/); // copy origin+value
O($$, OP_WITH_ROOT); / stack: starting context */	if(count>4)
	P($$, diving_code, 4); // tail
	} else
	#endif
	{
	O($$, OP::OP_WITH_ROOT); / stack: starting context */
P($$, diving_code);	P($$, diving_code);
}	}
/* diving code; stack: current context */	/* diving code; stack: current context */
};	};
name_expr_wdive_write: '.' name_expr_dive_code {	name_expr_wdive_write: '.' name_expr_dive_code {
$$=N();	$$=N();
O($$, OP_WITH_WRITE); / stack: starting context */	O($$, OP::OP_WITH_WRITE); / stack: starting context */
P($$, $2); /* diving code; stack: context,name */	P($$, $2); /* diving code; stack: context,name */
};	};
name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) };	name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2); };

construct:	construct:
construct_square	construct_square
\| construct_round	\| construct_round
\| construct_curly	\| construct_curly
Line 351 construct_square: '[' {	Line 458 construct_square: '[' {
} ']' {	} ']' {
// stack: context, name	// stack: context, name
$$=$3; // stack: context, name, value	$$=$3; // stack: context, name, value
O($$, OP_CONSTRUCT_VALUE); / value=pop; name=pop; context=pop; construct(context,name,value) */	O($$, OP::OP_CONSTRUCT_VALUE); / value=pop; name=pop; context=pop; construct(context,name,value) */
}	}
;	;
construct_round: '(' expr_value ')' {	construct_round: '(' expr_value ')' {
$$=N();	$$=N();
O(*$$, OP_PREPARE_TO_EXPRESSION);
// stack: context, name	// stack: context, name
P($$, $2); // stack: context, name, value	P($$, $2); // stack: context, name, value
O($$, OP_CONSTRUCT_EXPR); / value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */	O($$, OP::OP_CONSTRUCT_EXPR); / value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */
}	}
;	;
construct_curly: '{' maybe_codes '}' {	construct_curly: '{' maybe_codes '}' {
// stack: context, name	// stack: context, name
$$=N();	$$=N();
OA($$, OP_CURLY_CODE__CONSTRUCT, $2); / code=pop; name=pop; context=pop; construct(context,name,junction(code)) */	OA($$, OP::OP_CURLY_CODE__CONSTRUCT, $2); / code=pop; name=pop; context=pop; construct(context,name,junction(code)) */
};	};

any_constructor_code_value:	any_constructor_code_value:
void_value /* optimized $var[] case */	empty_value /* optimized $var[] case */
\| STRING /* optimized $var[STRING] case */	\| STRING /* optimized $var[STRING] case */
\| constructor_code_value /* $var[something complex] */	\| constructor_code_value /* $var[something complex] */
;	;
constructor_code_value: constructor_code {	constructor_code_value: constructor_code {
$$=N();	$$=N();
OA($$, OP_OBJECT_POOL, $1); / stack: empty write context */	OA($$, OP::OP_OBJECT_POOL, $1); / stack: empty write context */
/* some code that writes to that context */	/* some code that writes to that context */
/* context=pop; stack: context.value() */	/* context=pop; stack: context.value() */
};	};
constructor_code: codes__excluding_sole_str_literal;	constructor_code: codes__excluding_sole_str_literal;
codes__excluding_sole_str_literal: action \| code codes { $$=$1; P($$, $2) };	codes__excluding_sole_str_literal: action \| code codes { $$=$1; P($$, $2); };

/* call */	/* call */

call: call_value {	call: call_value {
$$=$1; /* stack: value */	size_t count=$1->count();
changetail_or_append(*$$,	#ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
OP_CALL, true, /->/ OP_CALL__WRITE,	if(count)
/or /OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */	#endif
	{
	$$=$1; /* stack: value */
	if(!change_first($$, OP::OP_CONSTRUCT_OBJECT, /=>*/ OP::OP_CONSTRUCT_OBJECT__WRITE))
	change_or_append($$, count-2 / second last /, OP::OP_CALL, /=>/ OP::OP_CALL__WRITE, /or / OP::OP_WRITE_VALUE); / value=pop; wcontext.write(value) */
	}
};	};
call_value: '^' {	call_value: '^' {
PC.in_call_value=true;	PC.in_call_value=true;
	}
	call_name {
	PC.in_call_value=false;
	}
	store_params EON { /* ^field.$method{vasya} */
	#ifdef OPTIMIZE_BYTECODE_CUT_REM_OPERATOR
	#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT
	const String* operator_name=LA2S(*$3, 0, OP::OP_VALUE__GET_ELEMENT_OR_OPERATOR);
	#else
	const String* operator_name=LA2S(*$3, 1);
	#endif
	if(operator_name && SYMBOLS_EQ(*operator_name,REM_SYMBOL)){
	$$=N();
	} else
	#endif
	{
	YYSTYPE params_code=$5;
	if(params_code->count()==3) { // probably [] case. [OP::OP_VALUE+origin+Void]
	if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?
	if(const String * string=value->get_string())
	if(string->is_empty()) // value is empty string?
	params_code=0; // ^zzz[] case. don't append lone empty param.
}	}
call_name {	/* stack: context, method_junction */
PC.in_call_value=false;
}
store_params EON { /* ^field.$method{vasya} */
$$=$3; /* with_xxx,diving code; stack: context,method_junction */

YYSTYPE params_code=$5;	YYSTYPE var_code=$3;
if(params_code->count()==4) { // probably [] case. [OP_VALUE+origin+Void+STORE_PARAM]	if(
if(Value* value=LA2V(*params_code)) // it is OP_VALUE+origin+value?	var_code->count()==8
if(!value->is_defined()) // value is VVoid?	&& ( (var_code)[0].code==OP::OP_VALUE__GET_CLASS \|\| (var_code)[0].code==OP::OP_VALUE__GET_BASE_CLASS )
params_code=0; // ^zzz[] case. don't append lone empty param.	&& (*var_code)[3].code==OP::OP_PREPARE_TO_CONSTRUCT_OBJECT
}	&& (*var_code)[4].code==OP::OP_VALUE
/* stack: context, method_junction */	#ifdef FEATURE_GET_ELEMENT4CALL
OA(*$$, OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value	&& (*var_code)[7].code==OP::OP_GET_ELEMENT4CALL
	#else
	&& (*var_code)[7].code==OP::OP_GET_ELEMENT
	#endif
	){
	$$=N();
	O(*$$, OP::OP_CONSTRUCT_OBJECT);
	P($$, var_code, 1/offset/, 2/limit/); // class name
	P($$, var_code, 5/offset/, 2/limit/); // constructor name
	OA(*$$, params_code);
	} else
	{
	$$=var_code; /* with_xxx,diving code; stack: context,method_junction */
	OA(*$$, OP::OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value
	}
	}
};	};

call_name: name_without_curly_rdive;	call_name: name_without_curly_rdive {
	#ifdef FEATURE_GET_ELEMENT4CALL
	size_t count=$1->count();
	if(count){
	$$=$1;
	#ifdef OPTIMIZE_BYTECODE_GET_OBJECT_ELEMENT
	!(count==5 && change_first(*$$, OP::OP_GET_OBJECT_ELEMENT, OP::OP_GET_OBJECT_ELEMENT4CALL)) &&
	#endif
	#ifdef OPTIMIZE_BYTECODE_GET_OBJECT_VAR_ELEMENT
	!(count==5 && change_first(*$$, OP::OP_GET_OBJECT_VAR_ELEMENT, OP::OP_GET_OBJECT_VAR_ELEMENT4CALL)) &&
	#endif
	!change(*$$, count-1, OP::OP_GET_ELEMENT, OP::OP_GET_ELEMENT4CALL);
	}
	#endif
	};

store_params: store_param \| store_params store_param { $$=$1; P($$, $2) };	store_params: store_param \| store_params store_param { $$=$1; P($$, $2); };
store_param:	store_param:
store_square_param	store_square_param
\| store_round_param	\| store_round_param
Line 422 store_square_param: '[' {	Line 580 store_square_param: '[' {
reinterpret_cast<bool>(&$$)=PC.explicit_result; PC.explicit_result=false;	reinterpret_cast<bool>(&$$)=PC.explicit_result; PC.explicit_result=false;
} store_code_param_parts {	} store_code_param_parts {
PC.explicit_result=reinterpret_cast<bool>(&$2);	PC.explicit_result=reinterpret_cast<bool>(&$2);
} ']' {$$=$3};	} ']' {$$=$3;};
store_round_param: '(' store_expr_param_parts ')' {$$=$2};	store_round_param: '(' store_expr_param_parts ')' {$$=$2;};
store_curly_param: '{' store_curly_param_parts '}' {$$=$2};	store_curly_param: '{' store_curly_param_parts '}' {$$=$2;};
store_code_param_parts:	store_code_param_parts:
store_code_param_part	store_code_param_part
\| store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) }	\| store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3); }
;	;
store_expr_param_parts:	store_expr_param_parts:
store_expr_param_part	store_expr_param_part
\| store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) }	\| store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3); }
;	;
store_curly_param_parts:	store_curly_param_parts:
store_curly_param_part	store_curly_param_part
\| store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) }	\| store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3); }
;	;
store_code_param_part: code_param_value {	store_code_param_part: code_param_value {
$$=$1;	$$=$1;
O(*$$, OP_STORE_PARAM);
};	};
store_expr_param_part: write_expr_value {	store_expr_param_part: expr_value {
$$=N();	YYSTYPE expr_code=$1;
OA(*$$, OP_EXPR_CODE__STORE_PARAM, $1);	if(expr_code->count()==3
	&& (*expr_code)[0].code==OP::OP_VALUE) { // optimizing (double/bool/incidently 'string' too) case. [OP::OP_VALUE+origin+Double]. no evaluating
	$$=expr_code;
	} else {
	YYSTYPE code=N();
	P(code, expr_code);
	O(*code, OP::OP_WRITE_EXPR_RESULT);
	$$=N();
	OA(*$$, OP::OP_EXPR_CODE__STORE_PARAM, code);
	}
};	};
store_curly_param_part: maybe_codes {	store_curly_param_part: maybe_codes {
$$=N();	$$=N();
OA(*$$, OP_CURLY_CODE__STORE_PARAM, $1);	OA(*$$, OP::OP_CURLY_CODE__STORE_PARAM, $1);
};	};
code_param_value:	code_param_value:
void_value /* optimized [;...] case */	empty_value /* optimized [;...] case */
\| STRING /* optimized [STRING] case */	\| STRING /* optimized [STRING] case */
\| constructor_code_value /* [something complex] */	\| constructor_code_value /* [something complex] */
;	;
write_expr_value: expr_value {
$$=N();
O(*$$, OP_PREPARE_TO_EXPRESSION);
P($$, $1);
O(*$$, OP_WRITE_EXPR_RESULT);
};

/* name */	/* name */

name_expr_dive_code: name_expr_value \| name_path name_expr_value { $$=$1; P($$, $2) };	name_expr_dive_code: name_expr_value \| name_path name_expr_value { $$=$1; P($$, $2); };

name_path: name_step \| name_path name_step { $$=$1; P($$, $2) };	name_path: name_step \| name_path name_step { $$=$1; P($$, $2); };
name_step: name_advance1 '.';	name_step: name_advance1 '.';
name_advance1: name_expr_value {	name_advance1: name_expr_value {
// we know that name_advance1 not called from ^xxx context	// we know that name_advance1 not called from ^xxx context
Line 473 name_advance1: name_expr_value {	Line 633 name_advance1: name_expr_value {

/* stack: context */	/* stack: context */
$$=$1; /* stack: context,name */	$$=$1; /* stack: context,name */
O($$, OP_GET_ELEMENT); / name=pop; context=pop; stack: context.get_element(name) */	#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
	O($$, is_special_element($$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
	#else
	O($$, OP::OP_GET_ELEMENT); / name=pop; context=pop; stack: context.get_element(name) */
	#endif
};	};
name_advance2: name_expr_value {	name_advance2: name_expr_value {
/* stack: context */	/* stack: context */
$$=$1; /* stack: context,name */	$$=$1; /* stack: context,name */
O($$, OP_GET_ELEMENT); / name=pop; context=pop; stack: context.get_element(name) */	#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
	O($$, is_special_element($$) ? OP::OP_GET_ELEMENT__SPECIAL : OP::OP_GET_ELEMENT);
	#else
	O($$, OP::OP_GET_ELEMENT); / name=pop; context=pop; stack: context.get_element(name) */
	#endif
}	}
\| STRING BOGUS	\| STRING BOGUS
;	;
Line 490 name_expr_value:	Line 658 name_expr_value:
;	;
name_expr_subvar_value: '$' subvar_ref_name_rdive {	name_expr_subvar_value: '$' subvar_ref_name_rdive {
$$=$2;	$$=$2;
O(*$$, OP_GET_ELEMENT);	O(*$$, OP::OP_GET_ELEMENT);
};	};
name_expr_with_subvar_value: STRING subvar_get_writes {	name_expr_with_subvar_value: STRING subvar_get_writes {
ArrayOperation* code;	YYSTYPE code;
{	{
change_string_literal_to_write_string_literal(*(code=$1));	change_string_literal_to_write_string_literal(*(code=$1));
P(code, $2);	P(code, $2);
}	}
$$=N();	$$=N();
OA(*$$, OP_STRING_POOL, code);	OA(*$$, OP::OP_STRING_POOL, code);
};	};
name_square_code_value: '[' {	name_square_code_value: '[' {
// allow $result_or_other_variable[ letters here any time ]	// allow $result_or_other_variable[ letters here any time ]
Line 508 name_square_code_value: '[' {	Line 676 name_square_code_value: '[' {
PC.explicit_result=reinterpret_cast<bool>(&$2);	PC.explicit_result=reinterpret_cast<bool>(&$2);
} ']' {	} ']' {
$$=N();	$$=N();
OA($$, OP_OBJECT_POOL, $3); / stack: empty write context */	#ifdef OPTIMIZE_BYTECODE_GET_ELEMENT__SPECIAL
/* some code that writes to that context */	if(!maybe_append_simple_diving_code($$, $3))
/* context=pop; stack: context.value() */	#endif
	{
	OA($$, OP::OP_OBJECT_POOL, $3); / stack: empty write context */
	/* some code that writes to that context */
	/* context=pop; stack: context.value() */
	}
};	};
subvar_ref_name_rdive: STRING {	subvar_ref_name_rdive: STRING {
$$=N();	$$=N();
O(*$$, OP_WITH_READ);	O(*$$, OP::OP_WITH_READ);
P($$, $1);	P($$, $1);
};	};
subvar_get_writes: subvar__get_write \| subvar_get_writes subvar__get_write { $$=$1; P($$, $2) };	subvar_get_writes: subvar__get_write \| subvar_get_writes subvar__get_write { $$=$1; P($$, $2); };
subvar__get_write: '$' subvar_ref_name_rdive {	subvar__get_write: '$' subvar_ref_name_rdive {
$$=$2;	$$=$2;
O(*$$, OP_GET_ELEMENT__WRITE);	O(*$$, OP::OP_GET_ELEMENT__WRITE);
};	};

class_prefix:	class_prefix:
Line 529 class_prefix:	Line 702 class_prefix:
;	;
class_static_prefix: STRING ':' {	class_static_prefix: STRING ':' {
$$=$1; // stack: class name string	$$=$1; // stack: class name string
	OP::OPCODE code = OP::OP_VALUE__GET_CLASS;
if(LA2S($$) == BASE_NAME) { // pseudo BASE class	if(LA2S($$) == BASE_NAME) { // pseudo BASE class
if(VStateless_class* base=PC.cclass->base_class()) {	if(VStateless_class* base=PC.cclass->base_class()) {
change_string_literal_value(*$$, base->name());	change_string_literal_value($$, new String(base->type()));
} else {	} else {
strcpy(PC.error, "no base class declared");	strcpy(PC.error, "no base class declared");
YYERROR;	YYERROR;
}	}
	code = OP::OP_VALUE__GET_BASE_CLASS;
	} else {
	// can't use get_class because it will call @autouse[] if the class wasn't loaded
	VStateless_class* base=PC.request.classes().get(LA2S($$));
	if(base && PC.cclass->derived_from(*base))
	code = OP::OP_VALUE__GET_BASE_CLASS;
}	}
O(*$$, OP_GET_CLASS);	// optimized OP_VALUE+origin+string+OP_GET_CLASS => OP_VALUE__GET_CLASS+origin+string
	change_first(*$$, OP::OP_VALUE, code);
};	};
class_constructor_prefix: class_static_prefix ':' {	class_constructor_prefix: class_static_prefix ':' {
$$=$1;	$$=$1;
Line 545 class_constructor_prefix: class_static_p	Line 726 class_constructor_prefix: class_static_p
strcpy(PC.error, ":: not allowed here");	strcpy(PC.error, ":: not allowed here");
YYERROR;	YYERROR;
}	}
O(*$$, OP_PREPARE_TO_CONSTRUCT_OBJECT);	O(*$$, OP::OP_PREPARE_TO_CONSTRUCT_OBJECT);
};	};


/* expr */	/* expr */

expr_value: expr {	expr_value: expr;
// see OP_PREPARE_TO_EXPRESSION!!
if(($$=$1)->count()==2) // only one string literal in there?
change_string_literal_to_double_literal(*$$); // make that string literal Double
};
expr:	expr:
STRING	double_or_STRING
	\| true_value
	\| false_value
\| get_value	\| get_value
\| call_value	\| call_value
\| '"' string_inside_quotes_value '"' { $$ = $2; }	\| '"' string_inside_quotes_value '"' { $$ = $2; }
\| '\'' string_inside_quotes_value '\'' { $$ = $2; }	\| '\'' string_inside_quotes_value '\'' { $$ = $2; }
\| '(' expr ')' { $$ = $2; }	\| '(' expr ')' { $$ = $2; }
/* stack: operand // stack: @operand */	/* stack: operand // stack: @operand */
\| '-' expr %prec NUNARY { $$=$2; O(*$$, OP_NEG) }	\| '-' expr %prec NUNARY { $$=$2; O(*$$, OP::OP_NEG); }
\| '+' expr %prec NUNARY { $$=$2 }	\| '+' expr %prec NUNARY { $$=$2; }
\| '~' expr { $$=$2; O(*$$, OP_INV) }	\| '~' expr { $$=$2; O(*$$, OP::OP_INV); }
\| '!' expr { $$=$2; O(*$$, OP_NOT) }	\| '!' expr { $$=$2; O(*$$, OP::OP_NOT); }
\| "def" expr { $$=$2; O(*$$, OP_DEF) }	\| "def" expr { $$=$2; O(*$$, OP::OP_DEF); }
\| "in" expr { $$=$2; O(*$$, OP_IN) }	\| "in" expr { $$=$2; O(*$$, OP::OP_IN); }
\| "-f" expr { $$=$2; O(*$$, OP_FEXISTS) }	\| "-f" expr { $$=$2; O(*$$, OP::OP_FEXISTS); }
\| "-d" expr { $$=$2; O(*$$, OP_DEXISTS) }	\| "-d" expr { $$=$2; O(*$$, OP::OP_DEXISTS); }
/* stack: a,b // stack: a@b */	/* stack: a,b // stack: a@b */
\| expr '-' expr { $$=$1; P($$, $3); O(*$$, OP_SUB) }	\| expr '-' expr { $$=$1; P($$, $3); O(*$$, OP::OP_SUB); }
\| expr '+' expr { $$=$1; P($$, $3); O(*$$, OP_ADD) }	\| expr '+' expr { $$=$1; P($$, $3); O(*$$, OP::OP_ADD); }
\| expr '' expr { $$=$1; P($$, $3); O($$, OP_MUL) }	\| expr '' expr { $$=$1; P($$, $3); O($$, OP::OP_MUL); }
\| expr '/' expr { $$=$1; P($$, $3); O(*$$, OP_DIV) }	\| expr '/' expr { $$=$1; P($$, $3); O(*$$, OP::OP_DIV); }
\| expr '%' expr { $$=$1; P($$, $3); O(*$$, OP_MOD) }	\| expr '%' expr { $$=$1; P($$, $3); O(*$$, OP::OP_MOD); }
\| expr '\\' expr { $$=$1; P($$, $3); O(*$$, OP_INTDIV) }	\| expr '\\' expr { $$=$1; P($$, $3); O(*$$, OP::OP_INTDIV); }
\| expr "<<" expr { $$=$1; P($$, $3); O(*$$, OP_BIN_SL) }	\| expr "<<" expr { $$=$1; P($$, $3); O(*$$, OP::OP_BIN_SL); }
\| expr ">>" expr { $$=$1; P($$, $3); O(*$$, OP_BIN_SR) }	\| expr ">>" expr { $$=$1; P($$, $3); O(*$$, OP::OP_BIN_SR); }
\| expr '&' expr { $$=$1; P($$, $3); O(*$$, OP_BIN_AND) }	\| expr '&' expr { $$=$1; P($$, $3); O(*$$, OP::OP_BIN_AND); }
\| expr '\|' expr { $$=$1; P($$, $3); O(*$$, OP_BIN_OR) }	\| expr '\|' expr { $$=$1; P($$, $3); O(*$$, OP::OP_BIN_OR); }
\| expr "!\|" expr { $$=$1; P($$, $3); O(*$$, OP_BIN_XOR) }	\| expr "!\|" expr { $$=$1; P($$, $3); O(*$$, OP::OP_BIN_XOR); }
\| expr "&&" expr { $$=$1; OA($$, OP_NESTED_CODE, $3); O($$, OP_LOG_AND) }	\| expr "&&" expr { $$=$1; OA($$, OP::OP_NESTED_CODE, $3); O($$, OP::OP_LOG_AND); }
\| expr "\|\|" expr { $$=$1; OA($$, OP_NESTED_CODE, $3); O($$, OP_LOG_OR) }	\| expr "\|\|" expr { $$=$1; OA($$, OP::OP_NESTED_CODE, $3); O($$, OP::OP_LOG_OR); }
\| expr "!\|\|" expr { $$=$1; P($$, $3); O(*$$, OP_LOG_XOR) }	\| expr "!\|\|" expr { $$=$1; P($$, $3); O(*$$, OP::OP_LOG_XOR); }
\| expr '<' expr { $$=$1; P($$, $3); O(*$$, OP_NUM_LT) }	\| expr '<' expr { $$=$1; P($$, $3); O(*$$, OP::OP_NUM_LT); }
\| expr '>' expr { $$=$1; P($$, $3); O(*$$, OP_NUM_GT) }	\| expr '>' expr { $$=$1; P($$, $3); O(*$$, OP::OP_NUM_GT); }
\| expr "<=" expr { $$=$1; P($$, $3); O(*$$, OP_NUM_LE) }	\| expr "<=" expr { $$=$1; P($$, $3); O(*$$, OP::OP_NUM_LE); }
\| expr ">=" expr { $$=$1; P($$, $3); O(*$$, OP_NUM_GE) }	\| expr ">=" expr { $$=$1; P($$, $3); O(*$$, OP::OP_NUM_GE); }
\| expr "==" expr { $$=$1; P($$, $3); O(*$$, OP_NUM_EQ) }	\| expr "==" expr { $$=$1; P($$, $3); O(*$$, OP::OP_NUM_EQ); }
\| expr "!=" expr { $$=$1; P($$, $3); O(*$$, OP_NUM_NE) }	\| expr "!=" expr { $$=$1; P($$, $3); O(*$$, OP::OP_NUM_NE); }
\| expr "lt" expr { $$=$1; P($$, $3); O(*$$, OP_STR_LT) }	\| expr "lt" expr { $$=$1; P($$, $3); O(*$$, OP::OP_STR_LT); }
\| expr "gt" expr { $$=$1; P($$, $3); O(*$$, OP_STR_GT) }	\| expr "gt" expr { $$=$1; P($$, $3); O(*$$, OP::OP_STR_GT); }
\| expr "le" expr { $$=$1; P($$, $3); O(*$$, OP_STR_LE) }	\| expr "le" expr { $$=$1; P($$, $3); O(*$$, OP::OP_STR_LE); }
\| expr "ge" expr { $$=$1; P($$, $3); O(*$$, OP_STR_GE) }	\| expr "ge" expr { $$=$1; P($$, $3); O(*$$, OP::OP_STR_GE); }
\| expr "eq" expr { $$=$1; P($$, $3); O(*$$, OP_STR_EQ) }	\| expr "eq" expr { $$=$1; P($$, $3); O(*$$, OP::OP_STR_EQ); }
\| expr "ne" expr { $$=$1; P($$, $3); O(*$$, OP_STR_NE) }	\| expr "ne" expr { $$=$1; P($$, $3); O(*$$, OP::OP_STR_NE); }
\| expr "is" expr { $$=$1; P($$, $3); O(*$$, OP_IS) }	\| expr "is" expr { $$=$1; P($$, $3); O(*$$, OP::OP_IS); }
;	;

	double_or_STRING: STRING {
	// optimized OP_STRING => OP_VALUE for doubles
	maybe_change_string_literal_to_double_literal(*($$=$1));
	};

string_inside_quotes_value: maybe_codes {	string_inside_quotes_value: maybe_codes {
	#ifdef OPTIMIZE_BYTECODE_STRING_POOL
	// it brakes ^if(" 09 "){...}
	YYSTYPE code=$1;
	$$=N();
	if(code->count()==3 && change_first(*code, OP::OP_STRING__WRITE, OP::OP_VALUE)){
	// optimized OP_STRING__WRITE+origin+value => OP_VALUE+origin+value without starting OP_STRING_POOL
	P($$, code);
	} else {
	OA($$, OP::OP_STRING_POOL, code); / stack: empty write context */
	}
	#else
$$=N();	$$=N();
OA($$, OP_STRING_POOL, $1); / stack: empty write context */	OA($$, OP::OP_STRING_POOL, $1); / stack: empty write context */
	#endif
/* some code that writes to that context */	/* some code that writes to that context */
/* context=pop; stack: context.get_string() */	/* context=pop; stack: context.get_string() */
};	};
Line 612 string_inside_quotes_value: maybe_codes	Line 808 string_inside_quotes_value: maybe_codes
/* basics */	/* basics */

write_string: STRING {	write_string: STRING {
// 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(*($$=$1))	change_string_literal_to_write_string_literal(*($$=$1));
};	};

void_value: /* empty */ { $$=VL(new VVoid(), 0, 0, 0) };	empty_value: /* empty / { $$=VL(/we know that we will not change it/const_cast<VString>(&vempty), 0, 0, 0); }
empty: /* empty */ { $$=N() };	true_value: "true" { $$ = VL(/we know that we will not change it/const_cast<VBool*>(&vtrue), 0, 0, 0); }
	false_value: "false" { $$ = VL(/we know that we will not change it/const_cast<VBool*>(&vfalse), 0, 0, 0); }

	empty: /* empty */ { $$=N(); };

%%	%%
#endif	#endif
Line 711 case LS_DEF_COMMENT:	Line 910 case LS_DEF_COMMENT:
default:	default:
switch(*pc.source) {	switch(*pc.source) {
// ^escaping some punctuators	// ^escaping some punctuators
case '^': case '$': case ';':	case '^': case '$': case ';': case '@':
case '(': case ')':	case '(': case ')':
case '[': case ']':	case '[': case ']':
case '{': case '}':	case '{': case '}':
Line 739 default:	Line 938 default:
pc.string.append_strdup_know_length(begin, end-begin);	pc.string.append_strdup_know_length(begin, end-begin);
}	}
// #HH ?	// #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 c=(char)(
hex_value[(unsigned char)pc.source[1]]*0x10+	hex_value[(unsigned char)pc.source[1]]*0x10+
hex_value[(unsigned char)pc.source[2]];	hex_value[(unsigned char)pc.source[2]]);
if(c==0) {	if(c==0) {
result=BAD_HEX_LITERAL;	result=BAD_HEX_LITERAL;
goto break2; // wrong hex value[no ^#00 chars allowed]: bail out	goto break2; // wrong hex value[no ^#00 chars allowed]: bail out
Line 758 default:	Line 957 default:
// skip analysis = forced literal	// skip analysis = forced literal
continue;	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;	break;
}	}
Line 810 default:	Line 1016 default:
}	}
if(pc.explicit_result && c)	if(pc.explicit_result && c)
switch(c) {	switch(c) {
	default:
	pc.string.append(c);
case '\n': case ' ': case '\t':	case '\n': case ' ': case '\t':
begin=pc.source;	begin=pc.source;
begin_pos=pc.pos;	begin_pos=pc.pos;
continue; // skip it	continue;
default:
result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
goto break2;
}	}
break;	break;

Line 839 default:	Line 1044 default:
case '"':	case '"':
case '\'':	case '\'':
if(	if(
pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' \|\|	(pc.ls == LS_EXPRESSION_STRING_QUOTED && c=='"') \|\|
pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') {	(pc.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') ) {
pop_LS(pc); //"abc". \| 'abc'.	pop_LS(pc); //"abc". \| 'abc'.
RC;	RC;
}	}
Line 913 default:	Line 1118 default:
case LS_METHOD_ROUND:	case LS_METHOD_ROUND:
switch(c) {	switch(c) {
case ')':	case ')':
if(--lexical_brackets_nestage==0)	if(--lexical_brackets_nestage==0) {
if(pc.ls==LS_METHOD_ROUND) // method round param ended	if(pc.ls==LS_METHOD_ROUND) // method round param ended
pc.ls=LS_METHOD_AFTER; // look for method end	pc.ls=LS_METHOD_AFTER; // look for method end
else // pc.ls==LS_VAR_ROUND // variable constructor ended	else // pc.ls==LS_VAR_ROUND // variable constructor ended
pop_LS(pc); // return to normal life	pop_LS(pc); // return to normal life
	}
RC;	RC;
case '#': // comment start skipping	case '#': // comment start skipping
if(end!=begin) {	if(end!=begin) {
Line 1055 default:	Line 1261 default:
case 'd':	case 'd':
if(end==begin) // right after whitespace	if(end==begin) // right after whitespace
if(pc.source[0]=='e' && pc.source[1]=='f') { // def	if(pc.source[0]=='e' && pc.source[1]=='f') { // def
skip_analized=2;	switch(pc.source[2]){
result=DEF;	case ' ': case '\t': case '\n': case '"': case '\'': case '^': case '$': // non-quoted string without whitespace after 'def' is not allowed
	skip_analized=2;
	result=DEF;
	goto break2;
	}
	// error: incorrect char after 'def'
	}
	break;
	case 't':
	if(end==begin) // right after whitespace
	if(pc.source[0]=='r' && pc.source[1]=='u' && pc.source[2]=='e') { // true
	skip_analized=3;
	result=LITERAL_TRUE;
	goto break2;
	}
	break;
	case 'f':
	if(end==begin) // right after whitespace
	if(pc.source[0]=='a' && pc.source[1]=='l' && pc.source[2]=='s' && pc.source[3]=='e') { // false
	skip_analized=4;
	result=LITERAL_FALSE;
goto break2;	goto break2;
}	}
break;	break;
Line 1131 default:	Line 1357 default:
case ']': case '}': case ')':	case ']': case '}': case ')':
case '"': case '\'':	case '"': case '\'':
case '<': case '>': // these stand for HTML brackets AND expression binary ops	case '<': case '>': // these stand for HTML brackets AND expression binary ops
case '+': case '*': case '/': case '%':	case '+': case '*': case '/': case '\\': case '%':
case '&': case '\|':	case '&': case '\|':
case '=': case '!':	case '=': case '!':
// common delimiters	// common delimiters
case ',': case '?': case '#':	case ',': case '?': case '#':
	// mysql column separators
	case '`':
// before call	// before call
case '^':	case '^':
pop_LS(pc);	pop_LS(pc);
Line 1320 default:	Line 1548 default:
}	}
if(pc.explicit_result && c)	if(pc.explicit_result && c)
switch(c) {	switch(c) {
	default:
	pc.string.append(c);
case '\n': case ' ': case '\t':	case '\n': case ' ': case '\t':
begin=pc.source;	begin=pc.source;
begin_pos=pc.pos;	begin_pos=pc.pos;
continue; // skip it	continue;
default:
result=BAD_NONWHITESPACE_CHARACTER_IN_EXPLICIT_RESULT_MODE;
goto break2;
}	}
break;	break;

Line 1335 default:	Line 1562 default:
pc.ls=LS_METHOD_SQUARE;	pc.ls=LS_METHOD_SQUARE;
lexical_brackets_nestage=1;	lexical_brackets_nestage=1;
RC;	RC;
}	}
if(c=='{') {/* ]{ }{ ){ */	if(c=='{') {/* ]{ }{ ){ */
pc.ls=LS_METHOD_CURLY;	pc.ls=LS_METHOD_CURLY;
lexical_brackets_nestage=1;	lexical_brackets_nestage=1;
RC;	RC;
}	}
if(c=='(') {/* ]( }( )( */	if(c=='(') {/* ]( }( )( */
pc.ls=LS_METHOD_ROUND;	pc.ls=LS_METHOD_ROUND;
lexical_brackets_nestage=1;	lexical_brackets_nestage=1;
RC;	RC;
}	}
pop_LS(pc);	pop_LS(pc);
pc.ungetc();	pc.ungetc();
result=EON;	result=EON;
Line 1359 default:	Line 1586 default:

break2:	break2:
if(end!=begin) { // there is last piece?	if(end!=begin) { // there is last piece?
if((c=='@' \|\| c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF?	if(c=='@' \|\| c==0) // we are before LS_DEF_NAME or EOF?
// strip last \n	while(end!=begin && end[-1]=='\n') // trim all empty lines before LS_DEF_NAME and EOF
end--;
if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME
end--;	end--;
}
if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?	if(end!=begin && pc.ls!=LS_USER_COMMENT) { // last piece still alive and not comment?
if(!pc.string_start)	if(!pc.string_start)
pc.string_start=begin_pos;	pc.string_start=begin_pos;
Line 1374 break2:	Line 1598 break2:
}	}
if(!pc.string.is_empty()) { // something accumulated?	if(!pc.string.is_empty()) { // something accumulated?
// create STRING value: array of OP_VALUE+origin+vstring	// create STRING value: array of OP_VALUE+origin+vstring
*lvalp=VL(	#ifdef SYMBOLS_CACHING
new VString(*new String(pc.string, String::L_CLEAN)),	Value *lookup=symbols->get(pc.string);
pc.file_no, pc.string_start.line, pc.string_start.col);	#else
	Value *lookup=0;
	#endif
	lvalp=VL(lookup ? lookup : new VString(new String(pc.string, String::L_CLEAN)), pc.file_no, pc.string_start.line, pc.string_start.col);
// new pieces storage	// new pieces storage
pc.string.clear();	pc.string.clear();
pc.string_start.clear();	pc.string_start.clear();
Line 1389 break2:	Line 1616 break2:
return result;	return result;
}	}

static int real_yyerror(Parse_control pc, char s) { // Called by yyparse on error	static int real_yyerror(Parse_control pc, const char s) { // Called by yyparse on error
strncpy(PC.error, s, MAX_STRING);	strncpy(PC.error, s, MAX_STRING);
return 1;	return 1;
}	}

static void yyprint(FILE *file, int type, YYSTYPE value) {	static void yyprint(FILE *file, int type, YYSTYPE value) {

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Removed from v.1.213
changed lines
	Added in v.1.289