|
|
| version 1.56, 2001/03/06 15:30:49 | version 1.204.2.8.2.7, 2003/03/27 14:51:28 |
|---|---|
| Line 1 | Line 1 |
| /* | %{ |
| $Id$ | /** @file |
| Parser: compiler(lexical parser and grammar). | |
| Copyright (c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com) | |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | |
| $Id$ | |
| */ | */ |
| %{ | /** |
| #define YYSTYPE Array/*<op>*/ * | @todo parser4: |
| - cache compiled code from request to request. to do that... | |
| -#: make method definitions, @CLASS, @BASE, @USE instructions, | |
| which would be executed afterwards, and actions | |
| now performed at compile time would be delayed to run time. | |
| -#: make cache expiration on time and on disk-change of class source | |
| -#: in apache use subpools for compiled class storage | |
| -#: in iis make up specialized Pool object for that | |
| */ | |
| #define YYSTYPE ArrayOperation* | |
| #define YYPARSE_PARAM pc | #define YYPARSE_PARAM pc |
| #define YYLEX_PARAM pc | #define YYLEX_PARAM pc |
| #define YYDEBUG 1 | #define YYDEBUG 1 |
| #define YYERROR_VERBOSE | #define YYERROR_VERBOSE 1 |
| #define yyerror(msg) real_yyerror((parse_control *)pc, msg) | #define yyerror(msg) real_yyerror((parse_control *)pc, msg) |
| #define YYPRINT(file, type, value) yyprint(file, type, value) | #define YYPRINT(file, type, value) yyprint(file, type, value) |
| #include <stdio.h> | |
| #include <string.h> | |
| #include <stdlib.h> | |
| #include "compile_tools.h" | #include "compile_tools.h" |
| #include "pa_value.h" | #include "pa_value.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_vobject.h" | #include "pa_vobject.h" |
| #include "pa_vdouble.h" | #include "pa_vdouble.h" |
| #include "pa_globals.h" | |
| #include "pa_vvoid.h" | |
| #include "pa_vmethod_frame.h" | |
| #define SELF_NAME "self" | #define USE_CONTROL_METHOD_NAME "USE" |
| #define USES_NAME "USES" | |
| int real_yyerror(parse_control *pc, char *s); | static int real_yyerror(parse_control *pc, char *s); |
| static void yyprint(FILE *file, int type, YYSTYPE value); | static void yyprint(FILE *file, int type, YYSTYPE value); |
| int yylex(YYSTYPE *lvalp, void *pc); | static int yylex(YYSTYPE *lvalp, void *pc); |
| // local convinient inplace typecast & var | // local convinient inplace typecast & var |
| #define PC ((parse_control *)pc) | #undef PC |
| #define POOL *PC->pool | #define PC (*(parse_control *)pc) |
| #undef NEW | #undef POOL |
| #define NEW new(POOL) | #define POOL (*PC.pool) |
| #ifndef DOXYGEN | |
| %} | %} |
| %pure_parser | %pure_parser |
| Line 42 int yylex(YYSTYPE *lvalp, void *pc); | Line 57 int yylex(YYSTYPE *lvalp, void *pc); |
| %token STRING | %token STRING |
| %token BOGUS | %token BOGUS |
| /* numerical */ | %token BAD_STRING_COMPARISON_OPERATOR |
| %left '-' '+' | %token BAD_HEX_LITERAL |
| %left '*' '/' | %token BAD_METHOD_DECL_START |
| %left NEG /* negation: unary - */ | %token BAD_METHOD_PARAMETER_NAME_CHARACTER |
| /* bitwise */ | %token BAD_MATH_OPERATOR_CHARACTER |
| %left INV /* invertion: unary ~ */ | |
| %token LAND "&&" | |
| %token LOR "||" | |
| %token LXOR "!||" | |
| %token NXOR "!|" | |
| %token NLE "<=" | |
| %token NGE ">=" | |
| %token NEQ "==" | |
| %token NNE "!=" | |
| %token NSL "<<" | |
| %token NSR ">>" | |
| %token SLT "lt" | |
| %token SGT "gt" | |
| %token SLE "le" | |
| %token SGE "ge" | |
| %token SEQ "eq" | |
| %token SNE "ne" | |
| %token DEF "def" | |
| %token IN "in" | |
| %token FEXISTS "-f" | |
| %token DEXISTS "-d" | |
| %token IS "is" | |
| /* logical */ | /* logical */ |
| %left NOT /* not: unary ! */ | %left "!||" |
| %left "||" | |
| %left "&&" | |
| %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge" | |
| %left "==" "!=" "eq" "ne" | |
| %left "is" "def" "in" "-f" "-d" | |
| %% | /* bitwise */ |
| %left "!|" | |
| %left '|' | |
| %left '&' | |
| %left "<<" ">>" | |
| /* numerical */ | |
| %left '+' '-' | |
| %left '*' '/' '\\' '%' | |
| %left NUNARY /* unary - + */ | |
| /* out-of-group */ | |
| %left '~' /* bitwise */ | |
| %left '!' /* logical */ | |
| %% | |
| all: | all: |
| one_big_piece { | one_big_piece { |
| String& name_main=*NEW String(POOL); | Method& method=*new Method(/*main_method_name, */Method::CT_ANY, |
| name_main.APPEND_CONST(MAIN_METHOD_NAME); | 0, 0, /*min, max numbered_params_count*/ |
| Array& param_names=*NEW Array(POOL); | 0/*param_names*/, 0/*local_names*/, |
| Array& local_names=*NEW Array(POOL); | $1/*parser_code*/, 0/*native_code*/); |
| Method& method=*NEW Method(POOL, name_main, param_names, local_names, *$1); | PC.cclass->add_method(main_method_name, method); |
| PC->vclass->add_method(name_main, method); | |
| } | } |
| | methods; | | methods; |
| Line 71 one_big_piece: maybe_codes; | Line 128 one_big_piece: maybe_codes; |
| method: control_method | code_method; | method: control_method | code_method; |
| control_method: '@' STRING '\n' | control_method: '@' STRING '\n' |
| control_strings { | maybe_control_strings { |
| String& name=*SLA2S($2); | const String& command=*LA2S(*$2); |
| YYSTYPE strings_code=$4; | YYSTYPE strings_code=$4; |
| if(strings_code->size()<1*2) { | if(strings_code->count()<1*2) { |
| strcpy(PC->error, "@"); | strcpy(PC.error, "@"); |
| strcat(PC->error, name.cstr()); | strcat(PC.error, command.cstr()); |
| strcat(PC->error, " is empty"); | strcat(PC.error, " is empty"); |
| YYERROR; | YYERROR; |
| } | } |
| if(name==CLASS_NAME) { | if(command==CLASS_NAME) { |
| if(strings_code->size()==1*2) | if(PC.cclass->base_class()) { // already changed from default? |
| PC->vclass->set_name(*SLA2S(strings_code)); | strcpy(PC.error, "class already have a name '"); |
| else { | strncat(PC.error, PC.cclass->name().cstr(), 100); |
| strcpy(PC->error, "@"CLASS_NAME" must contain sole name"); | strcat(PC.error, "'"); |
| YYERROR; | YYERROR; |
| } | } |
| } else { | if(strings_code->count()==1*2) { |
| if(name==USES_NAME) { | // new class' name |
| for(int i=0; i<strings_code->size(); i+=2) { | const String& name=*LA2S(*strings_code); |
| String *file=SLA2S(strings_code, i); | // creating the class |
| file->APPEND_CONST(".p"); | VStateless_class* cclass=new VClass; |
| PC->request->use(file->cstr(), 0); | PC.cclass=cclass; |
| } | PC.cclass->set_name(name); |
| } else if(name==BASE_NAME) { | // append to request's classes |
| if(strings_code->size()==1*2) { | PC.request.classes().put(name, cclass); |
| String& base_name=*SLA2S(strings_code); | } else { |
| VClass *base=static_cast<VClass *>( | strcpy(PC.error, "@"CLASS_NAME" must contain sole name"); |
| PC->request->classes().get(base_name)); | YYERROR; |
| if(!base) { | } |
| strcpy(PC->error, base_name.cstr()); | } else if(command==USE_CONTROL_METHOD_NAME) { |
| strcat(PC->error, ": undefined class in @"BASE_NAME); | for(size_t i=0; i<strings_code->count(); i+=2) |
| PC.request.use_file(PC.request.main_class, *LA2S(*strings_code, i)); | |
| } else if(command==BASE_NAME) { | |
| 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); | |
| strcat(PC.error, "'"); | |
| YYERROR; | |
| } | |
| if(strings_code->count()==1*2) { | |
| const String& base_name=*LA2S(*strings_code); | |
| if(Value* base_class_value=PC.request.classes().get(base_name)) { | |
| // @CLASS == @BASE sanity check | |
| if(VStateless_class *base_class=base_class_value->get_class()) { | |
| if(PC.cclass==base_class) { | |
| 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->vclass->set_base(*base); | |
| } else { | } else { |
| strcpy(PC->error, "@"BASE_NAME" must contain sole name"); | strcpy(PC.error, base_name.cstr()); |
| strcat(PC.error, ": undefined class in @"BASE_NAME); | |
| YYERROR; | YYERROR; |
| } | } |
| } else { | } else { |
| strcpy(PC->error, name.cstr()); | strcpy(PC.error, "@"BASE_NAME" must contain sole name"); |
| strcat(PC->error, ": invalid special name. valid names are " | |
| CLASS_NAME", "USES_NAME" and "BASE_NAME); | |
| YYERROR; | YYERROR; |
| } | } |
| } else { | |
| strcpy(PC.error, "'"); | |
| 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; | |
| } | } |
| }; | }; |
| control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) }; | maybe_control_strings: empty | control_strings; |
| 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' |
| maybe_codes { | maybe_codes { |
| const String *name=SLA2S($2); | const String& name=*LA2S(*$2); |
| YYSTYPE params_names_code=$3; | YYSTYPE params_names_code=$3; |
| Array& params_names=*NEW Array(POOL); | ArrayString* params_names=0; |
| for(int i=0; i<params_names_code->size(); i+=2) | if(int size=params_names_code->count()) { |
| params_names+=SLA2S(params_names_code, i); | params_names=new ArrayString; |
| for(int i=0; i<size; i+=2) | |
| *params_names+=LA2S(*params_names_code, i); | |
| } | |
| YYSTYPE locals_names_code=$4; | YYSTYPE locals_names_code=$4; |
| Array& locals_names=*NEW Array(POOL); | ArrayString* locals_names=0; |
| for(int i=0; i<locals_names_code->size(); i+=2) | if(int size=locals_names_code->count()) { |
| locals_names+=SLA2S(locals_names_code, i); | locals_names=new ArrayString; |
| for(int i=0; i<size; i+=2) | |
| *locals_names+=LA2S(*locals_names_code, i); | |
| } | |
| Method& method=*NEW Method(POOL, *name, params_names, locals_names, *$7); | Method& method=*new Method( |
| PC->vclass->add_method(*name, method); | //name, |
| Method::CT_ANY, | |
| 0, 0/*min,max numbered_params_count*/, | |
| params_names, locals_names, | |
| $7, 0); | |
| PC.cclass->add_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 150 maybe_comment: empty | STRING; | Line 244 maybe_comment: empty | STRING; |
| maybe_codes: empty | codes; | maybe_codes: empty | codes; |
| codes: code | codes code { | codes: code | codes code { $$=$1; P(*$$, *$2) }; |
| $$=$1; | code: write_string | action; |
| P($$, $2); | action: get | put | call; |
| }; | |
| code: write_str_literal | action; | |
| action: get | put | with | call; | |
| /* get */ | /* get */ |
| get: '$' get_name { | get: get_value { |
| $$=$2; /* stack: resulting value */ | $$=$1; /* stack: resulting value */ |
| O($$, OP_WRITE); /* value=pop; write(value) */ | changetail_or_append(*$$, |
| OP_GET_ELEMENT, false, /*->*/OP_GET_ELEMENT__WRITE, | |
| /*or */OP_WRITE_VALUE | |
| ); /* value=pop; wcontext.write(value) */ | |
| }; | }; |
| get_name: name_without_curly_rdive EON | name_in_curly_rdive; | get_value: '$' get_name_value { $$=$2 }; |
| get_name_value: name_without_curly_rdive EON | name_in_curly_rdive; | |
| name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 }; | name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 }; |
| name_without_curly_rdive: | name_without_curly_rdive: |
| name_without_curly_rdive_read | name_without_curly_rdive_read |
| | name_without_curly_rdive_root | |
| | name_without_curly_rdive_class; | | name_without_curly_rdive_class; |
| name_without_curly_rdive_read: name_without_curly_rdive_code { | name_without_curly_rdive_read: name_without_curly_rdive_code { |
| $$=N(POOL); | $$=N(); |
| Array *diving_code=$1; | ArrayOperation* diving_code=$1; |
| String *first_name=SLA2S(diving_code); | const String* first_name=LA2S(*diving_code); |
| if(first_name && *first_name==SELF_NAME) { | // self.xxx... -> xxx... |
| O($$, OP_WITH_SELF); /* stack: starting context */ | // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+... |
| P($$, diving_code, | if(first_name && *first_name==SELF_ELEMENT_NAME) { |
| O(*$$, OP_WITH_SELF); /* stack: starting context */ | |
| P(*$$, *diving_code, | |
| /* skip over... */ | /* skip over... */ |
| diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/); | diving_code->count()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/); |
| } else { | } else { |
| O($$, OP_WITH_READ); /* stack: starting context */ | O(*$$, OP_WITH_READ); /* stack: starting context */ |
| P($$, diving_code); | |
| // ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR | |
| // OP_VALUE+string+OP_GET_ELEMENT. -> OP_VALUE+string+OP_GET_ELEMENT_OR_OPERATOR. | |
| if(PC.in_call_value && diving_code->count()==3) | |
| diving_code->put(2, OP_GET_ELEMENT_OR_OPERATOR); | |
| P(*$$, *diving_code); | |
| } | } |
| /* diving code; stack: current context */ | /* diving code; stack: current context */ |
| }; | }; |
| name_without_curly_rdive_root: ':' name_without_curly_rdive_code { | name_without_curly_rdive_class: class_prefix name_without_curly_rdive_code { $$=$1; P(*$$, *$2) }; |
| $$=N(POOL); | name_without_curly_rdive_code: name_advance2 | name_path name_advance2 { $$=$1; P(*$$, *$2) }; |
| O($$, OP_WITH_ROOT); /* stack: starting context */ | |
| P($$, $2); /* diving code; stack: current context */ | |
| }; | |
| 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 { $$=$1; P($$, $2) }; | |
| /* put */ | /* put */ |
| put: '$' name_expr_wdive constructor_value { | put: '$' name_expr_wdive construct { |
| $$=$2; /* stack: context,name */ | $$=$2; /* stack: context,name */ |
| P($$, $3); /* stack: context,name,constructor_value */ | P(*$$, *$3); /* stack: context,name,constructor_value */ |
| O($$, OP_CONSTRUCT); /* value=pop; name=pop; context=pop; construct(context,name,value) */ | |
| }; | }; |
| name_expr_wdive: | name_expr_wdive: |
| name_expr_wdive_write | name_expr_wdive_root |
| | name_expr_wdive_root | | name_expr_wdive_write |
| | name_expr_wdive_class; | | name_expr_wdive_class; |
| name_expr_wdive_write: name_expr_dive_code { | name_expr_wdive_root: name_expr_dive_code { |
| $$=N(POOL); | $$=N(); |
| Array *diving_code=$1; | ArrayOperation* diving_code=$1; |
| String *first_name=SLA2S(diving_code); | const String* first_name=LA2S(*diving_code); |
| if(first_name && *first_name==SELF_NAME) { | // $self.xxx... -> $xxx... |
| O($$, OP_WITH_SELF); /* stack: starting context */ | // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+... |
| P($$, diving_code, | if(first_name && *first_name==SELF_ELEMENT_NAME) { |
| O(*$$, OP_WITH_SELF); /* stack: starting context */ | |
| P(*$$, *diving_code, | |
| /* skip over... */ | /* skip over... */ |
| diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/); | diving_code->count()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/); |
| } else { | } else { |
| O($$, OP_WITH_WRITE); /* stack: starting context */ | O(*$$, OP_WITH_ROOT); /* stack: starting context */ |
| P($$, diving_code); | P(*$$, *diving_code); |
| } | } |
| /* diving code; stack: current context */ | /* diving code; stack: current context */ |
| }; | }; |
| name_expr_wdive_root: ':' name_expr_dive_code { | name_expr_wdive_write: '.' name_expr_dive_code { |
| $$=N(POOL); | $$=N(); |
| O($$, OP_WITH_ROOT); /* stack: starting context */ | O(*$$, OP_WITH_WRITE); /* stack: starting context */ |
| P($$, $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(*$$, *$2) }; |
| constructor_value: | construct: |
| '[' any_constructor_code_value ']' { $$=$2 } | construct_square |
| | '(' any_expr ')' { $$=$2 } | | construct_round |
| | construct_curly | |
| ; | |
| construct_square: '[' any_constructor_code_value ']' { | |
| // stack: context, name | |
| $$=$2; // stack: context, name, value | |
| O(*$$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */ | |
| } | |
| ; | |
| construct_round: '(' expr_value ')' { | |
| $$=N(); | |
| O(*$$, OP_PREPARE_TO_EXPRESSION); | |
| // stack: context, name | |
| P(*$$, *$2); // stack: context, name, value | |
| O(*$$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */ | |
| } | |
| ; | ; |
| construct_curly: '{' maybe_codes '}' { | |
| // stack: context, name | |
| $$=N(); | |
| OA(*$$, OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */ | |
| }; | |
| any_constructor_code_value: | any_constructor_code_value: |
| empty_string_value /* optimized $var[] case */ | void_value /* optimized $var[] case */ |
| | STRING /* optimized $var[STRING] case */ | | STRING /* optimized $var[STRING] case */ |
| | constructor_code_value /* $var[something complex] */ | | constructor_code_value /* $var[something complex] */ |
| ; | ; |
| constructor_code_value: constructor_code { | constructor_code_value: constructor_code { |
| $$=N(POOL); | $$=N(); |
| O($$, OP_CREATE_EWPOOL); /* stack: empty write context */ | OA(*$$, OP_OBJECT_POOL, $1); /* stack: empty write context */ |
| P($$, $1); /* some codes to that context */ | /* some code that writes to that context */ |
| O($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */ | /* context=pop; stack: context.value() */ |
| }; | }; |
| constructor_code: codes__excluding_sole_str_literal; | constructor_code: codes__excluding_sole_str_literal; |
| codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) }; | codes__excluding_sole_str_literal: action | code codes { $$=$1; P(*$$, *$2) }; |
| /* call */ | /* call */ |
| call: '^' call_name store_params EON { /* ^field.$method{vasya} */ | call: call_value { |
| $$=$2; /* with_xxx,diving code; stack: context,method_junction */ | $$=$1; /* stack: value */ |
| O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */ | changetail_or_append(*$$, |
| P($$, $3); /* filling method_frame.store_params */ | OP_CALL, true, /*->*/ OP_CALL__WRITE, |
| O($$, OP_CALL); /* method_frame=pop; ncontext=pop; call(ncontext,method_frame) */ | /*or */OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */ |
| }; | |
| call_value: '^' { | |
| PC.in_call_value=true; | |
| } | |
| call_name { | |
| PC.in_call_value=false; | |
| } | |
| store_params EON { /* ^field.$method{vasya} */ | |
| $$=$3; /* with_xxx,diving code; stack: context,method_junction */ | |
| YYSTYPE params_code=$5; | |
| if(params_code->count()==3) { // probably [] case. [OP_VALUE + Void + STORE_PARAM] | |
| if(Value* value=LA2V(*params_code)) // it is OP_VALUE + value? | |
| if(!value->is_defined()) // value is VVoid? | |
| params_code=0; // ^zzz[] case. don't append lone empty param. | |
| } | |
| /* stack: context, method_junction */ | |
| OA(*$$, OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value | |
| }; | }; |
| call_name: name_without_curly_rdive; | call_name: name_without_curly_rdive; |
| store_params: store_param | store_params store_param { $$=$1; P($$, $2) }; | store_params: store_param | store_params store_param { $$=$1; P(*$$, *$2) }; |
| store_param: store_round_param | store_curly_param; | store_param: |
| store_round_param: '[' store_param_parts ']' {$$=$2}; | store_square_param |
| store_param_parts: | | store_round_param |
| store_param_part | | store_curly_param |
| | store_param_parts ';' store_param_part { $$=$1; P($$, $3) } | ; |
| ; | store_square_param: '[' store_code_param_parts ']' {$$=$2}; |
| store_curly_param: '{' maybe_codes '}' { | store_round_param: '(' store_expr_param_parts ')' {$$=$2}; |
| $$=N(POOL); | store_curly_param: '{' store_curly_param_parts '}' {$$=$2}; |
| PCA($$, $2); | store_code_param_parts: |
| O($$, OP_STORE_PARAM); | store_code_param_part |
| }; | | store_code_param_parts ';' store_code_param_part { $$=$1; P(*$$, *$3) } |
| store_param_part: | ; |
| empty /* optimized () case */ | store_expr_param_parts: |
| | STRING { /* optimized (STRING) case */ | store_expr_param_part |
| $$=$1; | | store_expr_param_parts ';' store_expr_param_part { $$=$1; P(*$$, *$3) } |
| O($$, OP_STORE_PARAM); | ; |
| } | store_curly_param_parts: |
| | constructor_code_value { /* (something complex) */ | store_curly_param_part |
| | store_curly_param_parts ';' store_curly_param_part { $$=$1; P(*$$, *$3) } | |
| ; | |
| store_code_param_part: code_param_value { | |
| $$=$1; | $$=$1; |
| O($$, OP_STORE_PARAM); | O(*$$, OP_STORE_PARAM); |
| } | }; |
| store_expr_param_part: write_expr_value { | |
| $$=N(); | |
| OA(*$$, OP_EXPR_CODE__STORE_PARAM, $1); | |
| }; | |
| store_curly_param_part: maybe_codes { | |
| $$=N(); | |
| OA(*$$, OP_CURLY_CODE__STORE_PARAM, $1); | |
| }; | |
| code_param_value: | |
| void_value /* optimized [;...] case */ | |
| | STRING /* optimized [STRING] case */ | |
| | 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 | |
| // so we'll not check for operator call possibility as we do in name_advance2 | |
| /* stack: context */ | /* stack: context */ |
| $$=$1; /* stack: context,name */ | $$=$1; /* stack: context,name */ |
| O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ | O(*$$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ |
| }; | }; |
| name_advance2: name_expr_value { | name_advance2: name_expr_value { |
| /* stack: context */ | /* stack: context */ |
| $$=$1; /* stack: context,name */ | $$=$1; /* stack: context,name */ |
| O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ | O(*$$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ |
| } | } |
| | STRING BOGUS | | STRING BOGUS |
| ; | ; |
| name_expr_value: | name_expr_value: |
| STRING /* subname_is_const */ | STRING /* subname_is_const */ |
| | name_expr_subvar_value /* $subname_is_var_value */ | | name_expr_subvar_value /* $subname_is_var_value */ |
| | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value[$...] */ | | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */ |
| | name_square_code_value /* [codes] */ | |
| ; | ; |
| name_expr_subvar_value: '$' subvar_ref_name_rdive { | name_expr_subvar_value: '$' subvar_ref_name_rdive { |
| $$=$2; | $$=$2; |
| O($$, OP_GET_ELEMENT); | O(*$$, OP_GET_ELEMENT); |
| }; | }; |
| name_expr_with_subvar_value: STRING subvar_get_writes { | name_expr_with_subvar_value: STRING subvar_get_writes { |
| $$=N(POOL); | ArrayOperation* code; |
| O($$, OP_CREATE_EWPOOL); | { |
| P($$, $1); | change_string_literal_to_write_string_literal(*(code=$1)); |
| O($$, OP_WRITE); | P(*code, *$2); |
| P($$, $2); | } |
| O($$, OP_REDUCE_EWPOOL); | $$=N(); |
| }; | OA(*$$, OP_STRING_POOL, code); |
| subvar_ref_name_rdive: subvar_ref_name_rdive_read | subvar_ref_name_rdive_root; | }; |
| subvar_ref_name_rdive_read: STRING { | name_square_code_value: '[' codes ']' { |
| $$=N(POOL); | $$=N(); |
| O($$, OP_WITH_READ); | OA(*$$, OP_OBJECT_POOL, $2); /* stack: empty write context */ |
| P($$, $1); | /* some code that writes to that context */ |
| }; | /* context=pop; stack: context.value() */ |
| subvar_ref_name_rdive_root: ':' STRING { | }; |
| $$=N(POOL); | subvar_ref_name_rdive: STRING { |
| O($$, OP_WITH_ROOT); | $$=N(); |
| P($$, $2); | O(*$$, OP_WITH_READ); |
| 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(*$$, OP_GET_ELEMENT__WRITE); |
| }; | }; |
| class_prefix: STRING ':' { | class_prefix: |
| String& name=*SLA2S($1); | class_static_prefix |
| VClass *vclass=static_cast<VClass *>(PC->request->classes().get(name)); | | class_constructor_prefix |
| if(!vclass) { | ; |
| strcpy(PC->error, "'"); | class_static_prefix: STRING ':' { |
| strcat(PC->error, name.cstr()); | $$=$1; // stack: class name string |
| strcat(PC->error, "' class is undefined in call"); | if(*LA2S(*$$) == BASE_NAME) { // pseude BASE class |
| if(VStateless_class* base=PC.cclass->base_class()) { | |
| change_string_literal_value(*$$, base->name()); | |
| } else { | |
| strcpy(PC.error, "no base class declared"); | |
| YYERROR; | |
| } | |
| } | |
| O(*$$, OP_GET_CLASS); | |
| }; | |
| class_constructor_prefix: class_static_prefix ':' { | |
| $$=$1; | |
| if(!PC.in_call_value) { | |
| strcpy(PC.error, ":: not allowed here"); | |
| YYERROR; | YYERROR; |
| } | } |
| //TODO: убрать зависимость от статических @USE, сделать имя, а не ссылку | O(*$$, OP_PREPARE_TO_CONSTRUCT_OBJECT); |
| $$=CL(vclass); // vclass | |
| }; | }; |
| /* with */ | |
| with: '$' name_without_curly_rdive '{' codes '}' { | |
| $$=$2; | |
| O($$, OP_CREATE_RWPOOL); | |
| P($$, $4); | |
| O($$, OP_REDUCE_RWPOOL); | |
| O($$, OP_WRITE); | |
| }; | |
| /* expr */ | /* expr */ |
| any_expr: | expr_value: expr { |
| empty_double_value /* optimized $var() case */ | // see OP_PREPARE_TO_EXPRESSION!! |
| | expr /* $var(something) */ | if(($$=$1)->count()==2) // only one string literal in there? |
| ; | change_string_literal_to_double_literal(*$$); // make that string literal Double |
| }; | |
| expr: | expr: |
| number | STRING |
| | expr '+' expr { | | get_value |
| $$=$1; // stack: first operand | | call_value |
| P($$, $3); // stack: first,second operands | | '"' string_inside_quotes_value '"' { $$ = $2; } |
| O($$, OP_ADD); // value=first+second; stack: value | | '\'' string_inside_quotes_value '\'' { $$ = $2; } |
| } | |
| | expr '-' expr { | |
| $$=$1; // stack: first operand | |
| P($$, $3); // stack: first,second operands | |
| O($$, OP_SUB); // value=first-second; stack: value | |
| } | |
| | expr '*' expr { | |
| $$=$1; // stack: first operand | |
| P($$, $3); // stack: first,second operands | |
| O($$, OP_MUL); // value=first*second; stack: value | |
| } | |
| | expr '/' expr { | |
| $$=$1; // stack: first operand | |
| P($$, $3); // stack: first,second operands | |
| O($$, OP_DIV); // value=first/second; stack: value | |
| } | |
| | '-' expr %prec NEG { | |
| $$=$2; // stack: operand | |
| O($$, OP_NEG); // value=-operand; stack: value | |
| } | |
| | '~' expr %prec INV { | |
| $$=$2; // stack: operand | |
| O($$, OP_INV); // value=~operand; stack: value | |
| } | |
| | '!' expr %prec NOT { | |
| $$=$2; // stack: operand | |
| O($$, OP_NOT); // value=!operand; stack: value | |
| } | |
| | '(' expr ')' { $$ = $2; } | | '(' expr ')' { $$ = $2; } |
| /* stack: operand // stack: @operand */ | |
| | '-' expr %prec NUNARY { $$=$2; O(*$$, OP_NEG) } | |
| | '+' expr %prec NUNARY { $$=$2 } | |
| | '~' expr { $$=$2; O(*$$, OP_INV) } | |
| | '!' expr { $$=$2; O(*$$, OP_NOT) } | |
| | "def" expr { $$=$2; O(*$$, OP_DEF) } | |
| | "in" expr { $$=$2; O(*$$, OP_IN) } | |
| | "-f" expr { $$=$2; O(*$$, OP_FEXISTS) } | |
| | "-d" expr { $$=$2; O(*$$, OP_DEXISTS) } | |
| /* stack: a,b // stack: a@b */ | |
| | expr '-' expr { $$=$1; P(*$$, *$3); O(*$$, OP_SUB) } | |
| | expr '+' expr { $$=$1; P(*$$, *$3); O(*$$, OP_ADD) } | |
| | expr '*' expr { $$=$1; P(*$$, *$3); O(*$$, OP_MUL) } | |
| | expr '/' expr { $$=$1; P(*$$, *$3); O(*$$, OP_DIV) } | |
| | expr '%' expr { $$=$1; P(*$$, *$3); O(*$$, OP_MOD) } | |
| | expr '\\' expr { $$=$1; P(*$$, *$3); O(*$$, OP_INTDIV) } | |
| | expr "<<" expr { $$=$1; P(*$$, *$3); O(*$$, OP_BIN_SL) } | |
| | expr ">>" expr { $$=$1; P(*$$, *$3); O(*$$, OP_BIN_SR) } | |
| | expr '&' expr { $$=$1; P(*$$, *$3); O(*$$, OP_BIN_AND) } | |
| | expr '|' expr { $$=$1; P(*$$, *$3); O(*$$, OP_BIN_OR) } | |
| | expr "!|" expr { $$=$1; P(*$$, *$3); O(*$$, OP_BIN_XOR) } | |
| | expr "&&" expr { $$=$1; OA(*$$, OP_NESTED_CODE, $3); O(*$$, OP_LOG_AND) } | |
| | expr "||" expr { $$=$1; OA(*$$, OP_NESTED_CODE, $3); O(*$$, OP_LOG_OR) } | |
| | expr "!||" expr { $$=$1; P(*$$, *$3); O(*$$, OP_LOG_XOR) } | |
| | expr '<' expr { $$=$1; P(*$$, *$3); O(*$$, OP_NUM_LT) } | |
| | expr '>' expr { $$=$1; P(*$$, *$3); O(*$$, OP_NUM_GT) } | |
| | expr "<=" expr { $$=$1; P(*$$, *$3); O(*$$, OP_NUM_LE) } | |
| | expr ">=" expr { $$=$1; P(*$$, *$3); O(*$$, OP_NUM_GE) } | |
| | expr "==" expr { $$=$1; P(*$$, *$3); O(*$$, OP_NUM_EQ) } | |
| | expr "!=" expr { $$=$1; P(*$$, *$3); O(*$$, OP_NUM_NE) } | |
| | expr "lt" expr { $$=$1; P(*$$, *$3); O(*$$, OP_STR_LT) } | |
| | expr "gt" expr { $$=$1; P(*$$, *$3); O(*$$, OP_STR_GT) } | |
| | expr "le" expr { $$=$1; P(*$$, *$3); O(*$$, OP_STR_LE) } | |
| | expr "ge" expr { $$=$1; P(*$$, *$3); O(*$$, OP_STR_GE) } | |
| | expr "eq" expr { $$=$1; P(*$$, *$3); O(*$$, OP_STR_EQ) } | |
| | expr "ne" expr { $$=$1; P(*$$, *$3); O(*$$, OP_STR_NE) } | |
| | expr "is" expr { $$=$1; P(*$$, *$3); O(*$$, OP_IS) } | |
| ; | ; |
| string_inside_quotes_value: maybe_codes { | |
| /* | $$=N(); |
| complex_expr_value: complex_expr { | OA(*$$, OP_STRING_POOL, $1); /* stack: empty write context */ |
| $$=N(POOL); | /* some code that writes to that context */ |
| O($$, OP_CREATE_SWPOOL); /* stack: empty write context * / | /* context=pop; stack: context.get_string() */ |
| P($$, $1); /* some codes to that context * / | |
| O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() * / | |
| }; | }; |
| */ | |
| /* basics */ | /* basics */ |
| write_str_literal: STRING { | write_string: STRING { |
| if(SLA2S($1)->size()) { | // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE |
| $$=$1; | change_string_literal_to_write_string_literal(*($$=$1)) |
| O($$, OP_WRITE); | |
| } else { | |
| // optimized case of special end of macro. see yylex | |
| $$=N(POOL); | |
| } | |
| }; | |
| number: STRING { | |
| change_string_literal_to_double_literal($$=$1); | |
| }; | }; |
| empty_double_value: /* empty */ { $$=VL(NEW VDouble(POOL)) }; | void_value: /* empty */ { $$=VL(new VVoid()) }; |
| empty_string_value: /* empty */ { $$=VL(NEW VString(POOL)) }; | empty: /* empty */ { $$=N() }; |
| empty: /* empty */ { $$=N(POOL) }; | |
| %% | %% |
| #endif | |
| /* | /* |
| 000$111(2222)00 | 000$111(2222)00 |
| Line 444 empty: /* empty */ { $$=N(POOL) }; | Line 607 empty: /* empty */ { $$=N(POOL) }; |
| 4:[^({]=pop | 4:[^({]=pop |
| */ | */ |
| int yylex(YYSTYPE *lvalp, void *pc) { | static int yylex(YYSTYPE *lvalp, void *pc) { |
| #define lexical_brackets_nestage PC->brackets_nestages[PC->sp] | #define lexical_brackets_nestage PC.brackets_nestages[PC.ls_sp] |
| #define RC {result=c; goto break2; } | #define RC {result=c; goto break2; } |
| register int c; | register int c; |
| int result; | int result; |
| if(PC->pending_state) { | if(PC.pending_state) { |
| result=PC->pending_state; | result=PC.pending_state; |
| PC->pending_state=0; | PC.pending_state=0; |
| return result; | return result; |
| } | } |
| char *begin=PC->source; | const char *begin=PC.source; |
| char *end; | const char *end; |
| int begin_line=PC->line; | int begin_line=PC.line; |
| int skip_analized=0; | |
| while(true) { | while(true) { |
| c=*(end=(PC->source++)); | c=*(end=(PC.source++)); |
| // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp); | |
| if(c=='\n') { | if(c=='\n') { |
| PC->line++; | PC.line++; |
| PC->col=0; | PC.col=0; |
| } else | } else |
| PC->col++; | PC.col++; |
| // escaping: ^^ ^$ ^; ^) ^} ^( ^{ ^" | if(c=='@' && PC.col==0+1) { |
| if(c=='^') | if(PC.ls==LS_DEF_SPECIAL_BODY) { |
| switch(*PC->source) { | // @SPECIAL |
| // ... | |
| // @<here = | |
| pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state | |
| } // continuing checks | |
| if(PC.ls==LS_USER) { | |
| push_LS(PC, LS_DEF_NAME); | |
| RC; | |
| } else // @ in first column inside some code [when could that be?] | |
| result=BAD_METHOD_DECL_START; | |
| goto break2; | |
| } else if(c=='^') { | |
| if(PC.ls==LS_METHOD_AFTER) { | |
| // handle after-method situation | |
| pop_LS(PC); | |
| result=EON; | |
| skip_analized=-1; // return to punctuation afterwards to assure it's literality | |
| goto break2; | |
| } | |
| switch(PC.ls) { | |
| case LS_EXPRESSION_VAR_NAME_WITH_COLON: | |
| case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON: | |
| case LS_VAR_NAME_SIMPLE_WITH_COLON: | |
| case LS_VAR_NAME_SIMPLE_WITHOUT_COLON: | |
| case LS_VAR_NAME_CURLY: | |
| case LS_METHOD_NAME: | |
| case LS_USER_COMMENT: | |
| case LS_DEF_COMMENT: | |
| // no literals in names, please | |
| break; | |
| default: | |
| switch(*PC.source) { | |
| // ^escaping some punctuators | |
| case '^': case '$': case ';': | case '^': case '$': case ';': |
| case '(': case ')': | |
| case '[': case ']': | case '[': case ']': |
| case '{': case '}': | case '{': case '}': |
| case '"': | case '"': case ':': |
| if(end!=begin) { | if(end!=begin) { |
| // append piece till ^ | // append piece till ^ |
| PC->string->APPEND(begin, end-begin, PC->file, begin_line); | PC.string.append_strdup(begin, end-begin); |
| } | } |
| // reset piece 'start' position & line | // reset piece 'begin' position & line |
| begin=PC->source; // ^ | begin=PC.source; // ->punctuation |
| begin_line=PC->line; | begin_line=PC.line; |
| // skip over ^ and _ | // skip over _ after ^ |
| PC->source++; PC->col++; | PC.source++; PC.col++; |
| // skip analysis = forced literal | // skip analysis = forced literal |
| continue; | continue; |
| // converting ^#HH into char(hex(HH)) | |
| case '#': | |
| if(end!=begin) { | |
| // append piece till ^ | |
| PC.string.append_strdup(begin, end-begin); | |
| } | |
| // #HH ? | |
| if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) { | |
| char c= | |
| hex_value[(unsigned char)PC.source[1]]*0x10+ | |
| hex_value[(unsigned char)PC.source[2]]; | |
| if(c==0) { | |
| result=BAD_HEX_LITERAL; | |
| goto break2; // wrong hex value[no ^#00 chars allowed]: bail out | |
| } | |
| // append char(hex(HH)) | |
| PC.string.append(c); | |
| // skip over ^#HH | |
| PC.source+=3; | |
| PC.col+=3; | |
| // reset piece 'begin' position & line | |
| begin=PC.source; // ->after ^#HH | |
| begin_line=PC.line; | |
| // skip analysis = forced literal | |
| continue; | |
| } | |
| break; | |
| } | } |
| switch(PC->ls) { | break; |
| } | |
| } | |
| // #comment start skipping | |
| if(c=='#' && PC.col==1) { | |
| if(end!=begin) { | |
| // append piece till # | |
| PC.string.append_strdup(begin, end-begin); | |
| } | |
| // fall into COMMENT lexical state [wait for \n] | |
| push_LS(PC, LS_USER_COMMENT); | |
| continue; | |
| } | |
| switch(PC.ls) { | |
| // USER'S = NOT OURS | // USER'S = NOT OURS |
| case LS_USER: | case LS_USER: |
| case LS_NAME_SQUARE_PART: // name.[here].xxx | |
| if(PC.trim_bof) | |
| switch(c) { | |
| case '\n': case ' ': case '\t': | |
| begin=PC.source; | |
| begin_line=PC.line; | |
| continue; // skip it | |
| default: | |
| PC.trim_bof=false; | |
| } | |
| switch(c) { | switch(c) { |
| case '$': | case '$': |
| push_LS(PC, LS_VAR_NAME_SIMPLE); | push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); |
| RC; | RC; |
| case '^': | case '^': |
| push_LS(PC, LS_METHOD_NAME); | push_LS(PC, LS_METHOD_NAME); |
| RC; | RC; |
| case '@': | case ']': |
| if(PC->col==0+1) { | if(PC.ls==LS_NAME_SQUARE_PART) |
| push_LS(PC, LS_DEF_NAME); | if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?> |
| RC; | pop_LS(PC); // $name.[co<]>de<]!> |
| } | RC; |
| } | |
| break; | |
| case '[': // $name.[co<[>de] | |
| if(PC.ls==LS_NAME_SQUARE_PART) | |
| lexical_brackets_nestage++; | |
| break; | break; |
| } | } |
| break; | break; |
| // #COMMENT | |
| case LS_USER_COMMENT: | |
| if(c=='\n') { | |
| // skip comment | |
| begin=PC.source; | |
| begin_line=PC.line; | |
| pop_LS(PC); | |
| continue; | |
| } | |
| break; | |
| // STRING IN EXPRESSION | // STRING IN EXPRESSION |
| case LS_EXPRESSION_STRING: | case LS_EXPRESSION_STRING_QUOTED: |
| case LS_EXPRESSION_STRING_APOSTROFED: | |
| switch(c) { | switch(c) { |
| case '"': | case '"': |
| pop_LS(PC); //"abc". | case '\'': |
| RC; | if( |
| PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' || | |
| PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') { | |
| pop_LS(PC); //"abc". | 'abc'. | |
| RC; | |
| } | |
| break; | |
| case '$': | case '$': |
| push_LS(PC, LS_VAR_NAME_SIMPLE); | push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); |
| RC; | RC; |
| case '^': | case '^': |
| push_LS(PC, LS_METHOD_NAME); | push_LS(PC, LS_METHOD_NAME); |
| Line 527 int yylex(YYSTYPE *lvalp, void *pc) { | Line 800 int yylex(YYSTYPE *lvalp, void *pc) { |
| case LS_DEF_NAME: | case LS_DEF_NAME: |
| switch(c) { | switch(c) { |
| case '[': | case '[': |
| PC->ls=LS_DEF_PARAMS; | PC.ls=LS_DEF_PARAMS; |
| RC; | RC; |
| case '\n': | case '\n': |
| PC->ls=LS_DEF_SPECIAL_BODY; | PC.ls=LS_DEF_SPECIAL_BODY; |
| RC; | RC; |
| } | } |
| break; | break; |
| case LS_DEF_PARAMS: | case LS_DEF_PARAMS: |
| switch(c) { | switch(c) { |
| case '$': // common error | |
| result=BAD_METHOD_PARAMETER_NAME_CHARACTER; | |
| goto break2; | |
| case ';': | case ';': |
| RC; | RC; |
| case ']': | case ']': |
| PC->ls=*PC->source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT; | PC.ls=*PC.source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT; |
| RC; | RC; |
| case '\n': // wrong. bailing out | case '\n': // wrong. bailing out |
| pop_LS(PC); | pop_LS(PC); |
| Line 554 int yylex(YYSTYPE *lvalp, void *pc) { | Line 830 int yylex(YYSTYPE *lvalp, void *pc) { |
| case ';': | case ';': |
| RC; | RC; |
| case ']': | case ']': |
| PC->ls=LS_DEF_COMMENT; | PC.ls=LS_DEF_COMMENT; |
| RC; | RC; |
| case '\n': // wrong. bailing out | case '\n': // wrong. bailing out |
| pop_LS(PC); | pop_LS(PC); |
| Line 570 int yylex(YYSTYPE *lvalp, void *pc) { | Line 846 int yylex(YYSTYPE *lvalp, void *pc) { |
| break; | break; |
| case LS_DEF_SPECIAL_BODY: | case LS_DEF_SPECIAL_BODY: |
| if(c=='\n') { | if(c=='\n') |
| switch(*PC->source) { | |
| case '@': case 0: // end of special_code | |
| pop_LS(PC); | |
| break; | |
| } | |
| RC; | RC; |
| } | |
| break; | break; |
| // (EXPRESSION) | // (EXPRESSION) |
| case LS_EXPRESSION_BODY: | case LS_VAR_ROUND: |
| case LS_METHOD_ROUND: | |
| switch(c) { | switch(c) { |
| case ')': | case ')': |
| if(--lexical_brackets_nestage==0) | if(--lexical_brackets_nestage==0) |
| pop_LS(PC); //(EXPRESSION). | if(PC.ls==LS_METHOD_ROUND) // method round param ended |
| PC.ls=LS_METHOD_AFTER; // look for method end | |
| else // PC.ls==LS_VAR_ROUND // variable constructor ended | |
| pop_LS(PC); // return to normal life | |
| RC; | RC; |
| case '#': // comment start skipping | |
| if(end!=begin) { | |
| // append piece till # | |
| PC.string.append_strdup(begin, end-begin); | |
| } | |
| // fall into COMMENT lexical state [wait for \n] | |
| push_LS(PC, LS_EXPRESSION_COMMENT); | |
| lexical_brackets_nestage=1; | |
| continue; | |
| case '$': | case '$': |
| push_LS(PC, LS_VAR_NAME_IN_EXPRESSION); | push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON); |
| RC; | RC; |
| case '^': | case '^': |
| push_LS(PC, LS_METHOD_NAME); | push_LS(PC, LS_METHOD_NAME); |
| Line 596 int yylex(YYSTYPE *lvalp, void *pc) { | Line 879 int yylex(YYSTYPE *lvalp, void *pc) { |
| case '(': | case '(': |
| lexical_brackets_nestage++; | lexical_brackets_nestage++; |
| RC; | RC; |
| case '+': case '-': case '*': case '/': case '%': | case '-': |
| case '!': case '~': | switch(*PC.source) { |
| case '&': case '|': | case 'f': // -f |
| case '<': case '>': case '=': | skip_analized=1; |
| result=FEXISTS; | |
| goto break2; | |
| case 'd': // -d | |
| skip_analized=1; | |
| result=DEXISTS; | |
| goto break2; | |
| default: // minus | |
| result=c; | |
| goto break2; | |
| } | |
| goto break2; | |
| case '+': case '*': case '/': case '%': case '\\': | |
| case '~': | |
| case ';': | case ';': |
| RC; | RC; |
| case '&': case '|': | |
| if(*PC.source==c) { // && || | |
| result=c=='&'?LAND:LOR; | |
| skip_analized=1; | |
| } else | |
| result=c; | |
| goto break2; | |
| case '!': | |
| switch(PC.source[0]) { | |
| case '|': // !| !|| | |
| skip_analized=1; | |
| if(PC.source[1]=='|') { | |
| skip_analized++; | |
| result=LXOR; | |
| } else | |
| result=NXOR; | |
| goto break2; | |
| case '=': // != | |
| skip_analized=1; | |
| result=NNE; | |
| goto break2; | |
| } | |
| RC; | |
| case '<': // <<, <=, < | |
| switch(*PC.source) { | |
| case '<': // <[<] | |
| skip_analized=1; result=NSL; break; | |
| case '=': // <[=] | |
| skip_analized=1; result=NLE; break; | |
| default: // <[] | |
| result=c; break; | |
| } | |
| goto break2; | |
| case '>': // >>, >=, > | |
| switch(*PC.source) { | |
| case '>': // >[>] | |
| skip_analized=1; result=NSR; break; | |
| case '=': // >[=] | |
| skip_analized=1; result=NGE; break; | |
| default: // >[] | |
| result=c; break; | |
| } | |
| goto break2; | |
| case '=': // == | |
| switch(*PC.source) { | |
| case '=': // =[=] | |
| skip_analized=1; result=NEQ; break; | |
| default: // =[] | |
| result=c; break; // not used now | |
| } | |
| goto break2; | |
| case '"': | case '"': |
| push_LS(PC, LS_EXPRESSION_STRING); | push_LS(PC, LS_EXPRESSION_STRING_QUOTED); |
| RC; | |
| case '\'': | |
| push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED); | |
| RC; | RC; |
| case 'l': case 'g': case 'e': case 'n': | case 'l': case 'g': case 'e': case 'n': |
| if(end==begin) // right after whitespace | if(end==begin) // right after whitespace |
| switch(char next_c=*PC->source) { | if(isspace(PC.source[1])) { |
| // case '?': // ok [and bad cases, yacc would bark at them] | switch(*PC.source) { |
| case 't': // lt gt [et nt] | // case '?': // ok [and bad cases, yacc would bark at them] |
| case 'e': // le ge ne [ee] | case 't': // lt gt [et nt] |
| case 'q': // eq [lq gq nq] | result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR; |
| PC->source++; PC->col++; | skip_analized=1; |
| PC->pending_state=next_c; | goto break2; |
| return c; | case 'e': // le ge ne [ee] |
| result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR; | |
| skip_analized=1; | |
| goto break2; | |
| case 'q': // eq [lq gq nq] | |
| result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR; | |
| skip_analized=1; | |
| goto break2; | |
| } | |
| } | |
| break; | |
| case 'i': | |
| if(end==begin) // right after whitespace | |
| if(isspace(PC.source[1])) { | |
| switch(PC.source[0]) { | |
| case 'n': // in | |
| skip_analized=1; | |
| result=IN; | |
| goto break2; | |
| case 's': // is | |
| skip_analized=1; | |
| result=IS; | |
| goto break2; | |
| } | |
| } | |
| break; | |
| case 'd': | |
| if(end==begin) // right after whitespace | |
| if(PC.source[0]=='e' && PC.source[1]=='f') { // def | |
| skip_analized=2; | |
| result=DEF; | |
| goto break2; | |
| } | } |
| break; | break; |
| case ' ': case '\t': case '\n': | case ' ': case '\t': case '\n': |
| if(end!=begin) { | if(end!=begin) { // there were a string after previous operator? |
| // append piece till whitespace | result=0; // return that string |
| PC->string->APPEND(begin, end-begin, PC->file, begin_line); | goto break2; |
| } | } |
| // reset piece 'start' position & line | // that's a leading|traling space or after-operator-space |
| begin=PC->source; // after whitespace | // ignoring it |
| begin_line=PC->line; | // reset piece 'begin' position & line |
| begin=PC.source; // after whitespace char | |
| begin_line=PC.line; | |
| continue; | |
| } | |
| break; | |
| case LS_EXPRESSION_COMMENT: | |
| if(c=='(') | |
| lexical_brackets_nestage++; | |
| switch(*PC.source) { | |
| case '\n': case ')': | |
| if(*PC.source==')') | |
| if(--lexical_brackets_nestage!=0) | |
| continue; | |
| // skip comment | |
| begin=PC.source; | |
| begin_line=PC.line; | |
| pop_LS(PC); | |
| continue; | continue; |
| } | } |
| break; | break; |
| // VARIABLE GET/PUT/WITH | // VARIABLE GET/PUT/WITH |
| case LS_VAR_NAME_SIMPLE: | case LS_VAR_NAME_SIMPLE_WITH_COLON: |
| case LS_VAR_NAME_IN_EXPRESSION: | case LS_VAR_NAME_SIMPLE_WITHOUT_COLON: |
| if(PC->ls==LS_VAR_NAME_IN_EXPRESSION) { | case LS_EXPRESSION_VAR_NAME_WITH_COLON: |
| // name in expr ends also before binary operators | case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON: |
| if( | |
| PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON || | |
| PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) { | |
| // name in expr ends also before | |
| switch(c) { | |
| // expression minus | |
| case '-': | |
| // expression integer division | |
| case '\\': | |
| pop_LS(PC); | |
| PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; } | |
| result=EON; | |
| goto break2; | |
| } | |
| } | |
| if( | |
| PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON || | |
| PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) { | |
| // name already has ':', stop before next | |
| switch(c) { | switch(c) { |
| case '+': case '-': case '*': case '/': case '%': | case ':': |
| case '&': case '|': | |
| case '<': case '>': case '=': case '!': | |
| pop_LS(PC); | pop_LS(PC); |
| PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; } | PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; } |
| result=EON; | result=EON; |
| goto break2; | goto break2; |
| } | } |
| Line 648 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1068 int yylex(YYSTYPE *lvalp, void *pc) { |
| case 0: | case 0: |
| case ' ': case '\t': case '\n': | case ' ': case '\t': case '\n': |
| case ';': | case ';': |
| case ']': case '}': | case ']': case '}': case ')': |
| case '"': case '\'': | |
| case '<': case '>': // these stand for HTML brackets AND expression binary ops | |
| case '+': case '*': case '/': case '%': | |
| case '&': case '|': | |
| case '=': case '!': | |
| // common delimiters | |
| case ',': case '?': case '#': | |
| // before call | |
| case '^': | |
| pop_LS(PC); | pop_LS(PC); |
| PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; } | PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; } |
| result=EON; | result=EON; |
| goto break2; | goto break2; |
| case '[': | case '[': |
| PC->ls=LS_VAR_SQUARE; | // $name.<[>code] |
| if(PC.col>1/*not first column*/ && ( | |
| end[-1]=='$'/*was start of get*/ || | |
| end[-1]==':'/*was class name delim */ || | |
| end[-1]=='.'/*was name delim */ | |
| )) { | |
| push_LS(PC, LS_NAME_SQUARE_PART); | |
| lexical_brackets_nestage=1; | |
| RC; | |
| } | |
| PC.ls=LS_VAR_SQUARE; | |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| RC; | RC; |
| case '{': | case '{': |
| if(begin==end) { // ${name}, no need of EON, switching LS | if(begin==end) { // ${name}, no need of EON, switching LS |
| PC->ls=LS_VAR_NAME_CURLY; | PC.ls=LS_VAR_NAME_CURLY; |
| } else { | } else { |
| PC->ls=LS_VAR_CURLY; | PC.ls=LS_VAR_CURLY; |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| } | } |
| RC; | RC; |
| case '(': | case '(': |
| PC->ls=LS_EXPRESSION_BODY; | PC.ls=LS_VAR_ROUND; |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| RC; | RC; |
| case '.': // name part delim | case '.': // name part delim |
| case '$': // name part subvar | case '$': // name part subvar |
| case ':': // ':name' or 'class:name' | case ':': // class<:>name |
| // go to _WITHOUT_COLON state variant... | |
| if(PC.ls==LS_VAR_NAME_SIMPLE_WITH_COLON) | |
| PC.ls=LS_VAR_NAME_SIMPLE_WITHOUT_COLON; | |
| else if(PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON) | |
| PC.ls=LS_EXPRESSION_VAR_NAME_WITHOUT_COLON; | |
| // ...stop before next ':' | |
| RC; | RC; |
| } | } |
| break; | break; |
| case LS_VAR_NAME_CURLY: | case LS_VAR_NAME_CURLY: |
| switch(c) { | switch(c) { |
| case '[': | |
| // ${name.<[>code]} | |
| push_LS(PC, LS_NAME_SQUARE_PART); | |
| lexical_brackets_nestage=1; | |
| RC; | |
| case '}': // ${name} finished, restoring LS | case '}': // ${name} finished, restoring LS |
| pop_LS(PC); | pop_LS(PC); |
| RC; | RC; |
| Line 692 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1142 int yylex(YYSTYPE *lvalp, void *pc) { |
| case LS_VAR_SQUARE: | case LS_VAR_SQUARE: |
| switch(c) { | switch(c) { |
| case '$': | case '$': |
| push_LS(PC, LS_VAR_NAME_SIMPLE); | push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); |
| RC; | RC; |
| case '^': | case '^': |
| push_LS(PC, LS_METHOD_NAME); | push_LS(PC, LS_METHOD_NAME); |
| Line 714 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1164 int yylex(YYSTYPE *lvalp, void *pc) { |
| case LS_VAR_CURLY: | case LS_VAR_CURLY: |
| switch(c) { | switch(c) { |
| case '$': | case '$': |
| push_LS(PC, LS_VAR_NAME_SIMPLE); | push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); |
| RC; | RC; |
| case '^': | case '^': |
| push_LS(PC, LS_METHOD_NAME); | push_LS(PC, LS_METHOD_NAME); |
| Line 735 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1185 int yylex(YYSTYPE *lvalp, void *pc) { |
| case LS_METHOD_NAME: | case LS_METHOD_NAME: |
| switch(c) { | switch(c) { |
| case '[': | case '[': |
| PC->ls=LS_METHOD_SQUARE; | // ^name.<[>code].xxx |
| if(PC.col>1/*not first column*/ && ( | |
| end[-1]=='^'/*was start of call*/ || // never, ^[ is literal... | |
| end[-1]==':'/*was class name delim */ || | |
| end[-1]=='.'/*was name delim */ | |
| )) { | |
| push_LS(PC, LS_NAME_SQUARE_PART); | |
| lexical_brackets_nestage=1; | |
| RC; | |
| } | |
| PC.ls=LS_METHOD_SQUARE; | |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| RC; | RC; |
| case '{': | case '{': |
| PC->ls=LS_METHOD_CURLY; | PC.ls=LS_METHOD_CURLY; |
| lexical_brackets_nestage=1; | |
| RC; | |
| case '(': | |
| PC.ls=LS_METHOD_ROUND; | |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| RC; | RC; |
| case '.': // name part delim | case '.': // name part delim |
| case '$': // name part subvar | case '$': // name part subvar |
| case ':': // ':name' or 'class:name' | case ':': // ':name' or 'class:name' |
| case '^': // ^abc^xxx wrong. bailing out | |
| case ']': case '}': case ')': // ^abc]}) wrong. bailing out | |
| RC; | RC; |
| } | } |
| break; | break; |
| Line 752 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1218 int yylex(YYSTYPE *lvalp, void *pc) { |
| case LS_METHOD_SQUARE: | case LS_METHOD_SQUARE: |
| switch(c) { | switch(c) { |
| case '$': | case '$': |
| push_LS(PC, LS_VAR_NAME_SIMPLE); | push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); |
| RC; | RC; |
| case '^': | case '^': |
| push_LS(PC, LS_METHOD_NAME); | push_LS(PC, LS_METHOD_NAME); |
| Line 761 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1227 int yylex(YYSTYPE *lvalp, void *pc) { |
| RC; | RC; |
| case ']': | case ']': |
| if(--lexical_brackets_nestage==0) { | if(--lexical_brackets_nestage==0) { |
| PC->ls=LS_METHOD_AFTER; | PC.ls=LS_METHOD_AFTER; |
| RC; | RC; |
| } | } |
| break; | break; |
| Line 774 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1240 int yylex(YYSTYPE *lvalp, void *pc) { |
| case LS_METHOD_CURLY: | case LS_METHOD_CURLY: |
| switch(c) { | switch(c) { |
| case '$': | case '$': |
| push_LS(PC, LS_VAR_NAME_SIMPLE); | push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); |
| RC; | RC; |
| case '^': | case '^': |
| push_LS(PC, LS_METHOD_NAME); | push_LS(PC, LS_METHOD_NAME); |
| RC; | RC; |
| case ';': // param delim | |
| RC; | |
| case '}': | case '}': |
| if(--lexical_brackets_nestage==0) { | if(--lexical_brackets_nestage==0) { |
| PC->ls=LS_METHOD_AFTER; | PC.ls=LS_METHOD_AFTER; |
| RC; | RC; |
| } | } |
| break; | break; |
| Line 792 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1260 int yylex(YYSTYPE *lvalp, void *pc) { |
| break; | break; |
| case LS_METHOD_AFTER: | case LS_METHOD_AFTER: |
| if(c=='[') {/* )( }( */ | if(c=='[') {/* ][ }[ )[ */ |
| 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; | |
| RC; | |
| } | |
| if(c=='(') {/* ]( }( )( */ | |
| PC.ls=LS_METHOD_ROUND; | |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| RC; | RC; |
| } | } |
| pop_LS(PC); | pop_LS(PC); |
| PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; } | PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; } |
| result=EON; | result=EON; |
| goto break2; | goto break2; |
| } | } |
| Line 814 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1287 int yylex(YYSTYPE *lvalp, void *pc) { |
| } | } |
| break2: | break2: |
| if(begin==end) | if(end!=begin) { // there is last piece? |
| return result; | if((c=='@' || c==0) && end[-1]=='\n') { // we are before LS_DEF_NAME or EOF? |
| else { | // strip last \n |
| PC->pending_state=result; | |
| // strip last \n before LS_DEF_NAME or EOF | |
| if((c=='@' || c==0) && end[-1]=='\n') | |
| end--; | end--; |
| if(end!=begin) { | if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME |
| // append last piece | end--; |
| PC->string->APPEND(begin, end-begin, PC->file, begin_line/*, start_col*/); | } |
| if(end!=begin && PC.ls!=LS_USER_COMMENT) { // last piece still alive and not comment? | |
| // append it | |
| PC.string.append_strdup(begin, end-begin); | |
| } | } |
| } | |
| if(!PC.string.is_empty()) { // something accumulated? | |
| // create STRING value: array of OP_VALUE+vstring | // create STRING value: array of OP_VALUE+vstring |
| *lvalp=VL(NEW VString(*PC->string)); | *lvalp=VL(new VString(*new String(PC.string, String::L_CLEAN))); |
| // new pieces storage | // new pieces storage |
| PC->string=NEW String(POOL); | PC.string.clear(); |
| // go! | // make current result be pending for next call, return STRING for now |
| return STRING; | PC.pending_state=result; result=STRING; |
| } | } |
| if(skip_analized) { | |
| PC.source+=skip_analized; PC.col+=skip_analized; | |
| } | |
| return result; | |
| } | } |
| int real_yyerror(parse_control *pc, char *s) /* Called by yyparse on error */ | static int real_yyerror(parse_control *pc, char *s) { // Called by yyparse on error |
| { | strncpy(PC.error, s, MAX_STRING); |
| //fprintf(stderr, "[%s]\n", s); | |
| strncpy(pc->error, s, MAX_STRING); // TODO: перепроверить с треклятым последним байтом | |
| return 1; | return 1; |
| } | } |
| static void | |
| yyprint( | |
| FILE *file, | |
| int type, | |
| YYSTYPE value) | |
| { | |
| if(type==STRING) | |
| fprintf(file, " \"%s\"", SLA2S(value)->cstr()); | |
| } | |
| static void yyprint(FILE *file, int type, YYSTYPE value) { | |
| if(type==STRING) | |
| fprintf(file, " \"%s\"", LA2S(*value)->cstr()); | |
| } |