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| version 1.8, 2001/02/21 11:13:16 | version 1.54, 2001/03/06 14:28:35 |
|---|---|
| Line 1 | Line 1 |
| /* | |
| $Id$ | |
| */ | |
| %{ | %{ |
| #define YYSTYPE Array/*<op>*/ * | #define YYSTYPE Array/*<op>*/ * |
| #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 |
| #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 <stdio.h> |
| #include <string.h> | #include <string.h> |
| Line 13 | Line 17 |
| #include "compile_tools.h" | #include "compile_tools.h" |
| #include "pa_value.h" | #include "pa_value.h" |
| #include "pa_request.h" | |
| #include "pa_vobject.h" | |
| #include "pa_vdouble.h" | |
| int real_yyerror (parse_control *pc, char *s); | #define SELF_NAME "self" |
| static void yyprint (FILE *file, int type, YYSTYPE value); | #define USES_NAME "USES" |
| int real_yyerror(parse_control *pc, char *s); | |
| static void yyprint(FILE *file, int type, YYSTYPE value); | |
| int yylex(YYSTYPE *lvalp, void *pc); | int yylex(YYSTYPE *lvalp, void *pc); |
| // local convinient inplace typecast & var | // local convinient inplace typecast & var |
| #define PC ((parse_control *)pc) | #define PC ((parse_control *)pc) |
| #define pool *PC->pool | #define POOL *PC->pool |
| #undef NEW | |
| #define NEW new(POOL) | |
| %} | %} |
| %pure_parser | %pure_parser |
| %token END_OF_NAME | %token EON |
| %token STRING | %token STRING |
| %token BOGUS | %token BOGUS |
| %token LOGICAL_AND LOGICAL_OR | |
| %% | %% |
| result: input { | all: |
| String& name_main=*new(pool) String(pool); | one_big_piece { |
| name_main.APPEND_CONST("main"); | String& name_main=*NEW String(POOL); |
| Array& param_names=*new(pool) Array(pool); | name_main.APPEND_CONST(MAIN_METHOD_NAME); |
| Array& local_names=*new(pool) Array(pool); | Array& param_names=*NEW Array(POOL); |
| Method *method=new(pool) Method(pool, name_main, param_names, local_names, *$1); | Array& local_names=*NEW Array(POOL); |
| *PC->methods+=method; | Method& method=*NEW Method(POOL, name_main, param_names, local_names, *$1); |
| PC->vclass->add_method(name_main, method); | |
| } | |
| | methods; | |
| methods: method | methods method; | |
| one_big_piece: maybe_codes; | |
| method: control_method | code_method; | |
| control_method: '@' STRING '\n' | |
| control_strings { | |
| String& name=*SLA2S($2); | |
| YYSTYPE strings_code=$4; | |
| if(strings_code->size()<1*2) { | |
| strcpy(PC->error, "@"); | |
| strcat(PC->error, name.cstr()); | |
| strcat(PC->error, " is empty"); | |
| YYERROR; | |
| } | |
| if(name==CLASS_NAME) { | |
| if(strings_code->size()==1*2) | |
| PC->vclass->set_name(*SLA2S(strings_code)); | |
| else { | |
| strcpy(PC->error, "@"CLASS_NAME" must contain sole name"); | |
| YYERROR; | |
| } | |
| } else { | |
| if(name==USES_NAME) { | |
| for(int i=0; i<strings_code->size(); i+=2) { | |
| String *file=SLA2S(strings_code, i); | |
| file->APPEND_CONST(".p"); | |
| PC->request->use(file->cstr(), 0); | |
| } | |
| } else if(name==BASE_NAME) { | |
| if(strings_code->size()==1*2) { | |
| String& base_name=*SLA2S(strings_code); | |
| VClass *base=static_cast<VClass *>( | |
| PC->request->classes().get(base_name)); | |
| if(!base) { | |
| strcpy(PC->error, base_name.cstr()); | |
| strcat(PC->error, ": undefined class in @"BASE_NAME); | |
| YYERROR; | |
| } | |
| PC->vclass->set_base(*base); | |
| } else { | |
| strcpy(PC->error, "@"BASE_NAME" must contain sole name"); | |
| YYERROR; | |
| } | |
| } else { | |
| strcpy(PC->error, name.cstr()); | |
| strcat(PC->error, ": invalid special name. valid names are " | |
| CLASS_NAME", "USES_NAME" and "BASE_NAME); | |
| YYERROR; | |
| } | |
| } | |
| }; | }; |
| input: empty | codes; | control_strings: control_string | control_strings control_string { $$=$1; P($$, $2) }; |
| control_string: maybe_string '\n'; | |
| maybe_string: empty | STRING; | |
| code_method: '@' STRING bracketed_maybe_strings maybe_bracketed_strings maybe_comment '\n' | |
| maybe_codes { | |
| const String *name=SLA2S($2); | |
| YYSTYPE params_names_code=$3; | |
| Array& params_names=*NEW Array(POOL); | |
| for(int i=0; i<params_names_code->size(); i+=2) | |
| params_names+=SLA2S(params_names_code, i); | |
| YYSTYPE locals_names_code=$4; | |
| Array& locals_names=*NEW Array(POOL); | |
| for(int i=0; i<locals_names_code->size(); i+=2) | |
| locals_names+=SLA2S(locals_names_code, i); | |
| Method& method=*NEW Method(POOL, *name, params_names, locals_names, *$7); | |
| PC->vclass->add_method(*name, method); | |
| }; | |
| maybe_bracketed_strings: empty | bracketed_maybe_strings; | |
| bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2}; | |
| maybe_strings: empty | strings; | |
| strings: STRING | strings ';' STRING { $$=$1; P($$, $3) }; | |
| maybe_comment: empty | STRING; | |
| /* codes */ | /* codes */ |
| maybe_codes: empty | codes; | |
| codes: code | codes code { | codes: code | codes code { |
| $$=$1; | $$=$1; |
| P($$,$2); | P($$, $2); |
| }; | }; |
| code: write_str_literal | action; | code: write_str_literal | action; |
| action: get | put | with | call; | action: get | put | with | call; |
| /* get */ | /* get */ |
| get: '$' any_name { | get: '$' get_name { |
| $$=$2; /* stack: resulting value */ | $$=$2; /* stack: resulting value */ |
| OP($$,OP_WRITE); /* value=pop; write(value) */ | O($$, OP_WRITE); /* value=pop; write(value) */ |
| }; | }; |
| get_name: name_without_curly_rdive EON | name_in_curly_rdive; | |
| any_name: name_without_curly_rdive END_OF_NAME | name_in_curly_rdive; | |
| name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 }; | name_in_curly_rdive: '{' name_without_curly_rdive '}' { $$=$2 }; |
| name_without_curly_rdive: name_rdive { | name_without_curly_rdive: |
| /* | name_without_curly_rdive_read |
| TODO: подсмотреть в $1, и если там в первом элементе первая буква ":" | | name_without_curly_rdive_root |
| то выкинуть её и делать не OP_WITH_READ, а WITH_ROOT | | name_without_curly_rdive_class; |
| TODO: подсмотреть в $1, и если там первым элементом self, | name_without_curly_rdive_read: name_without_curly_rdive_code { |
| то выкинуть его и делать не OP_WITH_READ, а WITH_SELF | $$=N(POOL); |
| */ | Array *diving_code=$1; |
| $$=N(pool); OP($$, OP_WITH_READ); /* stack: starting context */ | String *first_name=SLA2S(diving_code); |
| P($$,$1); /* diving code; stack: current context */ | if(first_name && *first_name==SELF_NAME) { |
| O($$, OP_WITH_SELF); /* stack: starting context */ | |
| P($$, diving_code, | |
| /* skip over... */ | |
| diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/); | |
| } else { | |
| O($$, OP_WITH_READ); /* stack: starting context */ | |
| P($$, diving_code); | |
| } | |
| /* diving code; stack: current context */ | |
| }; | |
| name_without_curly_rdive_root: ':' name_without_curly_rdive_code { | |
| $$=N(POOL); | |
| O($$, OP_WITH_ROOT); /* stack: starting context */ | |
| P($$, $2); /* diving code; stack: current context */ | |
| }; | }; |
| name_rdive: name_advance2 | name_path name_advance2 { $$=$1; P($$,$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 { $$=$1; P($$, $2) }; | |
| /* put */ | /* put */ |
| put: '$' name_expr_dive '(' constructor_value ')' { | put: '$' name_expr_wdive constructor_value { |
| /* | $$=$2; /* stack: context,name */ |
| TODO: подсмотреть в $3, и если там в первом элементе первая буква ":" | P($$, $3); /* stack: context,name,constructor_value */ |
| то выкинуть её и делать не OP_WITH_OP_WRITE, а WITH_ROOT | O($$, OP_CONSTRUCT); /* value=pop; name=pop; context=pop; construct(context,name,value) */ |
| TODO: подсмотреть в $3, и если там первым элементом self, | }; |
| то выкинуть его и делать не OP_WITH_OP_WRITE, а WITH_SELF | name_expr_wdive: |
| если ничего не осталось - $self(xxx) | name_expr_wdive_write |
| обругать | | name_expr_wdive_root |
| */ | | name_expr_wdive_class; |
| $$=N(pool); | name_expr_wdive_write: name_expr_dive_code { |
| OP($$, OP_WITH_WRITE); /* stack: starting context */ | $$=N(POOL); |
| P($$,$2); /* diving code; stack: context,name */ | Array *diving_code=$1; |
| P($$,$4); /* stack: context,name,constructor_value */ | String *first_name=SLA2S(diving_code); |
| OP($$,OP_CONSTRUCT); /* value=pop; name=pop; context=pop; construct(context,name,value) */ | if(first_name && *first_name==SELF_NAME) { |
| O($$, OP_WITH_SELF); /* stack: starting context */ | |
| P($$, diving_code, | |
| /* skip over... */ | |
| diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/); | |
| } else { | |
| O($$, OP_WITH_WRITE); /* stack: starting context */ | |
| P($$, diving_code); | |
| } | |
| /* diving code; stack: current context */ | |
| }; | }; |
| name_expr_wdive_root: ':' name_expr_dive_code { | |
| $$=N(POOL); | |
| O($$, OP_WITH_ROOT); /* stack: starting context */ | |
| P($$, $2); /* diving code; stack: context,name */ | |
| }; | |
| name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) }; | |
| constructor_value: | constructor_value: |
| constructor_one_param_value | '[' constructor_code_value ']' { $$=$2 } |
| | constructor_two_params_value /* $var(=;2*2) $var(%d;2*2) $var(+;1) */ | | '(' expression_value ')' { $$=$2 } |
| ; | ; |
| constructor_one_param_value: | constructor_code_value: |
| empty_value /* optimized $var() case */ | empty_value /* optimized $var[] case */ |
| | STRING /* optimized $var(STRING) case */ | | STRING /* optimized $var[STRING] case */ |
| | complex_constructor_param_value /* $var(something complex) */ | | complex_constructor_code_value /* $var[something complex] */ |
| ; | |
| empty_value: empty; | |
| complex_constructor_param_value: complex_constructor_param_body { | |
| $$=N(pool); | |
| OP($$, OP_CREATE_EWPOOL); /* stack: empty write context */ | |
| P($$,$1); /* some codes to that context */ | |
| OP($$,OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */ | |
| }; | |
| complex_constructor_param_body: | |
| codes__excluding_sole_str_literal | |
| | codes__str__followed_by__excluding_sole_str_literal | |
| ; | ; |
| constructor_two_params_value: STRING ';' constructor_one_param_value { | complex_constructor_code_value: complex_constructor_code { |
| char *operator_or_fmt=LA2S($1)->cstr(); | $$=N(POOL); |
| $$=N(pool); | O($$, OP_CREATE_EWPOOL); /* stack: empty write context */ |
| P($$, $1);/* stack: ncontext name operator_or_fmt */ | P($$, $1); /* some codes to that context */ |
| P($$, $3); /* stack: ncontext name operator_or_fmt expr */ | O($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */ |
| switch(operator_or_fmt[0]) { | |
| case '=': case '%': | |
| OP($$, OP_EXPRESSION_EVAL); | |
| break; | |
| case '+': case '-': case '*': case '/': | |
| OP($$, OP_MODIFY_EVAL); | |
| break; | |
| default: | |
| strcpy(PC->error, "invalid modification operator"); | |
| YYERROR; | |
| } | |
| /* stack: ncontext name value */ | |
| }; | }; |
| complex_constructor_code: codes__excluding_sole_str_literal; | |
| codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) }; | |
| /* call */ | /* call */ |
| call: '^' name_expr_dive store_params END_OF_NAME { /* ^field.$method{vasya} */ | call: '^' call_name store_params EON { /* ^field.$method{vasya} */ |
| /* | $$=$2; /* with_xxx,diving code; stack: context,method_junction */ |
| TODO: подсмотреть в $3, и если там в первом элементе первая буква ":" | O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */ |
| то выкинуть её и делать не OP_WITH_READ, а WITH_ROOT | P($$, $3); /* filling method_frame.store_params */ |
| TODO: подсмотреть в $3, и если там первым элементом self, | O($$, OP_CALL); /* method_frame=pop; ncontext=pop; call(ncontext,method_frame) */ |
| то выкинуть его и делать не OP_WITH_READ, а WITH_SELF | |
| TODO: | |
| если первым в $3 идёт result | |
| то | |
| выкинуть его | |
| если там ещё что-то осталось, | |
| то | |
| не OP_WITH_READ, а WITH_RESULT | |
| иначе // ^result(value) | |
| обругать безобразие | |
| */ | |
| $$=N(pool); | |
| OP($$, OP_WITH_READ); /* stack: starting context */ | |
| P($$,$2); /* diving code; stack: context,method_name */ | |
| OP($$,OP_GET_METHOD_FRAME); /* stack: context,method_frame */ | |
| P($$,$3); /* filling method_frame.store_params */ | |
| OP($$,OP_CALL); /* method_frame=pop; ncontext=pop; call(ncontext,method_frame) */ | |
| }; | }; |
| store_params: store_param | store_params store_param { $$=$1; P($$,$2) }; | call_name: name_without_curly_rdive; |
| store_params: store_param | store_params store_param { $$=$1; P($$, $2) }; | |
| store_param: store_round_param | store_curly_param; | store_param: store_round_param | store_curly_param; |
| store_round_param: '(' store_param_parts ')' {$$=$2}; | store_round_param: '[' store_param_parts ']' {$$=$2}; |
| store_param_parts: store_param_part | store_param_parts ';' store_param_part { $$=$1; P($$,$3) }; | store_param_parts: |
| store_param_part: constructor_one_param_value { | store_param_part |
| | store_param_parts ';' store_param_part { $$=$1; P($$, $3) } | |
| ; | |
| store_curly_param: '{' maybe_codes '}' { | |
| $$=N(POOL); | |
| PCA($$, $2); | |
| O($$, OP_STORE_PARAM); | |
| }; | |
| store_param_part: | |
| empty /* optimized () case */ | |
| | STRING { /* optimized (STRING) case */ | |
| $$=$1; | $$=$1; |
| OP($$,OP_STORE_PARAM); | O($$, OP_STORE_PARAM); |
| } | } |
| store_curly_param: '{' input '}' { | | complex_constructor_code_value { /* (something complex) */ |
| $$=N(pool); | $$=$1; |
| OP($$, OP_CODE_ARRAY); | O($$, OP_STORE_PARAM); |
| AA($$,$2); | } |
| OP($$,OP_CREATE_JUNCTION); | ; |
| OP($$,OP_STORE_PARAM); | |
| }; | |
| /* name */ | /* name */ |
| name_expr_dive: name_expr_value | name_path name_expr_value { $$=$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($$, $2) }; |
| name_step: name_advance1 '.'; | name_step: name_advance1 '.'; |
| name_advance1: name_expr_value { | name_advance1: name_expr_value { |
| /* stack: context */ | /* stack: context */ |
| $$=$1; /* stack: context,name */ | $$=$1; /* stack: context,name */ |
| OP($$,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 */ | $$=$1; /* stack: context,name */ |
| OP($$,OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ | O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ |
| } | } |
| | STRING BOGUS | | STRING BOGUS |
| ; | ; |
| Line 197 name_expr_value: | Line 294 name_expr_value: |
| ; | ; |
| name_expr_subvar_value: '$' subvar_ref_name_rdive { | name_expr_subvar_value: '$' subvar_ref_name_rdive { |
| $$=$2; | $$=$2; |
| OP($$,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); | $$=N(POOL); |
| OP($$, OP_CREATE_EWPOOL); | O($$, OP_CREATE_EWPOOL); |
| P($$,$1); | P($$, $1); |
| OP($$,OP_WRITE); | O($$, OP_WRITE); |
| P($$,$2); | P($$, $2); |
| OP($$,OP_REDUCE_EWPOOL); | O($$, OP_REDUCE_EWPOOL); |
| }; | |
| subvar_ref_name_rdive: subvar_ref_name_rdive_read | subvar_ref_name_rdive_root; | |
| subvar_ref_name_rdive_read: STRING { | |
| $$=N(POOL); | |
| O($$, OP_WITH_READ); | |
| P($$, $1); | |
| }; | |
| subvar_ref_name_rdive_root: ':' STRING { | |
| $$=N(POOL); | |
| O($$, OP_WITH_ROOT); | |
| P($$, $2); | |
| }; | }; |
| subvar_ref_name_rdive: STRING { | subvar_get_writes: subvar__get_write | subvar_get_writes subvar__get_write { $$=$1; P($$, $2) }; |
| /* | |
| TODO: подсмотреть в $1, и если там в первом элементе первая буква ":" | |
| то выкинуть её и делать не OP_WITH_READ, а WITH_ROOT | |
| */ | |
| $$=N(pool); OP($$, OP_WITH_READ); | |
| P($$,$1); | |
| }; | |
| 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; |
| OP($$,OP_GET_ELEMENT__WRITE); | O($$, OP_GET_ELEMENT__WRITE); |
| }; | |
| class_prefix: STRING ':' { | |
| String& name=*SLA2S($1); | |
| VClass *vclass=static_cast<VClass *>(PC->request->classes().get(name)); | |
| if(!vclass) { | |
| strcpy(PC->error, "'"); | |
| strcat(PC->error, name.cstr()); | |
| strcat(PC->error, "' class is undefined in call"); | |
| YYERROR; | |
| } | |
| //TODO: убрать зависимость от статических @USE, сделать имя, а не ссылку | |
| $$=CL(vclass); // vclass | |
| }; | }; |
| Line 226 subvar__get_write: '$' subvar_ref_name_r | Line 339 subvar__get_write: '$' subvar_ref_name_r |
| with: '$' name_without_curly_rdive '{' codes '}' { | with: '$' name_without_curly_rdive '{' codes '}' { |
| $$=$2; | $$=$2; |
| OP($$,OP_CREATE_RWPOOL); | O($$, OP_CREATE_RWPOOL); |
| P($$,$4); | P($$, $4); |
| OP($$,OP_REDUCE_RWPOOL); | O($$, OP_REDUCE_RWPOOL); |
| OP($$,OP_WRITE); | O($$, OP_WRITE); |
| }; | }; |
| /* codes_in_brackets */ | /* expression */ |
| codes__str__followed_by__excluding_sole_str_literal: | expression_value: |
| write_str_literal codes__excluding_sole_str_literal { | empty_value /* optimized $var() case */ |
| $$=$1; | | number /* optimized $var(STRING) case */ |
| P($$,$2); | | complex_expression /* $var(something complex) */ |
| } | |
| ; | |
| codes__excluding_sole_str_literal: | |
| action | |
| | codes__excluding_sole_str_literal write_str_literal { | |
| $$=$1; | |
| P($$,$2); | |
| } | |
| ; | ; |
| write_str_literal: STRING { | complex_expression: expression_operand '*' expression_operand { |
| $$=$1; | $$=$1; // stack: first operand |
| OP($$,OP_WRITE); | P($$, $3); // stack: first,second operands |
| O($$, OP_MUL); // value=first*second; stack: value | |
| }; | }; |
| expression_operand: number; | |
| /* | |
| complex_expression_value: complex_expression { | |
| $$=N(POOL); | |
| O($$, OP_CREATE_SWPOOL); /* stack: empty write context * / | |
| P($$, $1); /* some codes to that context * / | |
| O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() * / | |
| }; | |
| */ | |
| /* basics */ | |
| /* */ | write_str_literal: STRING { |
| if(SLA2S($1)->size()) { | |
| $$=$1; | |
| O($$, OP_WRITE); | |
| } else { | |
| // optimized case of special end of macro. see yylex | |
| $$=N(POOL); | |
| } | |
| }; | |
| number: STRING { | |
| change_string_literal_to_double_literal($$=$1); | |
| }; | |
| empty: /* empty */ { $$=N(pool) }; | empty_value: /* empty */ { $$=SL(NEW VString(POOL)) }; |
| empty: /* empty */ { $$=N(POOL) }; | |
| %% | %% |
| /* | /* |
| 000$111(2222)00 | 000$111(2222)00 |
| 000$111{3333}00 | 000$111{3333}00 |
| $,^: push, =0 | $,^: push,=0 |
| 1:( { break=pop | 1:( { break=pop |
| 2:( ) pop | 2:( ) pop |
| 3:{ } pop | 3:{ } pop |
| 000^111(2222)4444{33333}4000 | 000^111(2222)4444{33333}4000 |
| $,^: push, =0 | $,^: push,=0 |
| 1:( { break=pop | 1:( { break=pop |
| 2:( )=4 | 2:( )=4 |
| 3:{ }=4 | 3:{ }=4 |
| Line 276 empty: /* empty */ { $$=N(pool) }; | Line 406 empty: /* empty */ { $$=N(pool) }; |
| int yylex(YYSTYPE *lvalp, void *pc) { | int yylex(YYSTYPE *lvalp, void *pc) { |
| #define lexical_brackets_nestage PC->brackets_nestages[PC->sp] | #define lexical_brackets_nestage PC->brackets_nestages[PC->sp] |
| #define RC {result=c; goto break2; } | |
| register int c; | register int c; |
| int result; | int result; |
| char *start; | |
| int start_line; | |
| if(PC->pending_state) { | if(PC->pending_state) { |
| result=PC->pending_state; | result=PC->pending_state; |
| Line 288 int yylex(YYSTYPE *lvalp, void *pc) { | Line 417 int yylex(YYSTYPE *lvalp, void *pc) { |
| return result; | return result; |
| } | } |
| start=PC->source; | char *begin=PC->source; |
| start_line=PC->line; | char *end; |
| while(1) { | int begin_line=PC->line; |
| c=*PC->source++; | while(true) { |
| c=*(end=(PC->source++)); | |
| if(c=='\n') { | if(c=='\n') { |
| PC->line++; | PC->line++; |
| PC->col=0; | PC->col=0; |
| } | } else |
| PC->col++; | PC->col++; |
| /* escaping: ^^ ^$ ^; ^) ^} ^( ^{ */ | // escaping: ^^ ^$ ^; ^) ^} ^( ^{ ^" |
| if(c=='^') { | if(c=='^') |
| char pending_c=*PC->source; | switch(*PC->source) { |
| case '^': case '$': case ';': | |
| if(pending_c == '^' || pending_c == '$' || pending_c == ';' || | case '[': case ']': |
| pending_c == '(' || pending_c == ')' || | case '{': case '}': |
| pending_c == '{' || pending_c == '}') { | case '"': |
| /* append piece till ^ */ | if(end!=begin) { |
| PC->string->APPEND(start, PC->source-start -1/*^*/, PC->file, start_line); | // append piece till ^ |
| /* reset piece 'start' position & line */ | PC->string->APPEND(begin, end-begin, PC->file, begin_line); |
| start=PC->source+1/*^*/; | } |
| start_line=PC->line; | // reset piece 'start' position & line |
| /* skip over ^ and _ */ | begin=PC->source; // ^ |
| PC->source+=2; | begin_line=PC->line; |
| /* skip analysis = forced literal */ | // skip over ^ and _ |
| PC->source++; PC->col++; | |
| // skip analysis = forced literal | |
| continue; | continue; |
| } | } |
| } | |
| switch(PC->ls) { | switch(PC->ls) { |
| // USER'S = NOT OURS | |
| case LS_USER: | case LS_USER: |
| if(c=='$') { | switch(c) { |
| push_LS(PC); PC->ls=LS_VAR_NAME_SIMPLE; | case '$': |
| result=c; | push_LS(PC, LS_VAR_NAME_SIMPLE); |
| goto break2; | RC; |
| case '^': | |
| push_LS(PC, LS_METHOD_NAME); | |
| RC; | |
| case '@': | |
| if(PC->col==0+1) { | |
| push_LS(PC, LS_DEF_NAME); | |
| RC; | |
| } | |
| break; | |
| } | } |
| if(c=='^') { | break; |
| push_LS(PC); PC->ls=LS_METHOD_NAME; | |
| result=c; | // STRING IN EXPRESSION |
| goto break2; | case LS_EXPRESSION_STRING: |
| switch(c) { | |
| case '"': | |
| pop_LS(PC); //"abc". | |
| RC; | |
| case '$': | |
| push_LS(PC, LS_VAR_NAME_SIMPLE); | |
| RC; | |
| case '^': | |
| push_LS(PC, LS_METHOD_NAME); | |
| RC; | |
| } | } |
| break; | break; |
| /* VAR */ | // METHOD DEFINITION |
| case LS_VAR_NAME_SIMPLE: | case LS_DEF_NAME: |
| if(c==0 || | switch(c) { |
| c==' '|| c=='\t' || c=='\n' || | case '[': |
| c==')' || c=='}') { | PC->ls=LS_DEF_PARAMS; |
| pop_LS(PC); | RC; |
| PC->source--; PC->col--; | case '\n': |
| result=END_OF_NAME; | PC->ls=LS_DEF_SPECIAL_BODY; |
| goto break2; | RC; |
| } | |
| if(PC->source==start && c=='{') { /* ${name}, no need of END_OF_NAME, switching LS */ | |
| PC->ls=LS_VAR_NAME_CURLY; | |
| result=c; | |
| goto break2; | |
| } | |
| if(c=='(') { | |
| PC->ls=LS_VAR_ROUND; | |
| lexical_brackets_nestage=1; | |
| result=c; | |
| goto break2; | |
| } | |
| if(c=='{') { | |
| PC->ls=LS_VAR_CURLY; | |
| lexical_brackets_nestage=1; | |
| result=c; | |
| goto break2; | |
| } | } |
| if(c=='.'/* name part delim */ || c=='$'/* name part subvar */) { | break; |
| result=c; | |
| goto break2; | case LS_DEF_PARAMS: |
| switch(c) { | |
| case ';': | |
| RC; | |
| case ']': | |
| PC->ls=*PC->source=='['?LS_DEF_LOCALS:LS_DEF_COMMENT; | |
| RC; | |
| case '\n': // wrong. bailing out | |
| pop_LS(PC); | |
| RC; | |
| } | } |
| break; | break; |
| case LS_VAR_NAME_CURLY: | |
| if(c=='}') { /* ${name} finished, restoring LS */ | case LS_DEF_LOCALS: |
| switch(c) { | |
| case '[': | |
| case ';': | |
| RC; | |
| case ']': | |
| PC->ls=LS_DEF_COMMENT; | |
| RC; | |
| case '\n': // wrong. bailing out | |
| pop_LS(PC); | pop_LS(PC); |
| result=c; | RC; |
| goto break2; | |
| } | } |
| if(c=='.'/* name part delim */ || c=='$'/*name part subvar*/) { | break; |
| result=c; | |
| goto break2; | case LS_DEF_COMMENT: |
| if(c=='\n') { | |
| pop_LS(PC); | |
| RC; | |
| } | } |
| break; | break; |
| case LS_VAR_ROUND: | |
| if(c=='$') { | case LS_DEF_SPECIAL_BODY: |
| push_LS(PC); PC->ls=LS_VAR_NAME_SIMPLE; | if(c=='\n') { |
| result=c; | switch(*PC->source) { |
| goto break2; | case '@': case 0: // end of special_code |
| pop_LS(PC); | |
| break; | |
| } | |
| RC; | |
| } | } |
| if(c=='^') { | break; |
| push_LS(PC); PC->ls=LS_METHOD_NAME; | |
| result=c; | // (EXPRESSION) |
| goto break2; | case LS_EXPRESSION_BODY: |
| switch(c) { | |
| case ')': | |
| if(--lexical_brackets_nestage==0) | |
| pop_LS(PC); //(EXPRESSION). | |
| RC; | |
| case '$': | |
| push_LS(PC, LS_VAR_NAME_IN_EXPRESSION); | |
| RC; | |
| case '^': | |
| push_LS(PC, LS_METHOD_NAME); | |
| RC; | |
| case '(': | |
| lexical_brackets_nestage++; | |
| RC; | |
| case '+': case '-': case '*': case '/': case '%': | |
| case '&': case '|': | |
| case '<': case '>': case '=': case '!': | |
| case ';': | |
| RC; | |
| case '"': | |
| push_LS(PC, LS_EXPRESSION_STRING); | |
| RC; | |
| case 'l': case 'g': case 'e': case 'n': | |
| if(end==begin) // right after whitespace | |
| switch(char next_c=*PC->source) { | |
| // case '?': // ok [and bad cases, yacc would bark at them] | |
| case 't': // lt gt [et nt] | |
| case 'e': // le ge ne [ee] | |
| case 'q': // eq [lq gq nq] | |
| PC->source++; PC->col++; | |
| PC->pending_state=next_c; | |
| return c; | |
| } | |
| break; | |
| case ' ': case '\t': case '\n': | |
| if(end!=begin) { | |
| // append piece till whitespace | |
| PC->string->APPEND(begin, end-begin, PC->file, begin_line); | |
| } | |
| // reset piece 'start' position & line | |
| begin=PC->source; // after whitespace | |
| begin_line=PC->line; | |
| continue; | |
| } | } |
| if(c==')') { | break; |
| if(--lexical_brackets_nestage==0) { | |
| // VARIABLE GET/PUT/WITH | |
| case LS_VAR_NAME_SIMPLE: | |
| case LS_VAR_NAME_IN_EXPRESSION: | |
| if(PC->ls==LS_VAR_NAME_IN_EXPRESSION) { | |
| // name in expression ends also before binary operators | |
| switch(c) { | |
| case '+': case '-': case '*': case '/': case '%': | |
| case '&': case '|': | |
| case '<': case '>': case '=': case '!': | |
| pop_LS(PC); | pop_LS(PC); |
| result=c; | PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; } |
| result=EON; | |
| goto break2; | goto break2; |
| } | } |
| } | } |
| if(c==';'/* operator_or_fmt;value delim */) { | switch(c) { |
| result=c; | case 0: |
| case ' ': case '\t': case '\n': | |
| case ';': | |
| case ']': case '}': | |
| pop_LS(PC); | |
| PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; } | |
| result=EON; | |
| goto break2; | goto break2; |
| case '[': | |
| PC->ls=LS_VAR_SQUARE; | |
| lexical_brackets_nestage=1; | |
| RC; | |
| case '{': | |
| if(begin==end) { // ${name}, no need of EON, switching LS | |
| PC->ls=LS_VAR_NAME_CURLY; | |
| } else { | |
| PC->ls=LS_VAR_CURLY; | |
| lexical_brackets_nestage=1; | |
| } | |
| RC; | |
| case '(': | |
| PC->ls=LS_EXPRESSION_BODY; | |
| lexical_brackets_nestage=1; | |
| RC; | |
| case '.': // name part delim | |
| case '$': // name part subvar | |
| case ':': // ':name' or 'class:name' | |
| RC; | |
| } | } |
| if(c=='(') | |
| lexical_brackets_nestage++; | |
| break; | break; |
| case LS_VAR_CURLY: | |
| if(c=='$') { | case LS_VAR_NAME_CURLY: |
| push_LS(PC); PC->ls=LS_VAR_NAME_SIMPLE; | switch(c) { |
| result=c; | case '}': // ${name} finished, restoring LS |
| goto break2; | pop_LS(PC); |
| RC; | |
| case '.': // name part delim | |
| case '$': // name part subvar | |
| case ':': // ':name' or 'class:name' | |
| RC; | |
| } | } |
| if(c=='^') { | break; |
| push_LS(PC); PC->ls=LS_METHOD_NAME; | |
| result=c; | case LS_VAR_SQUARE: |
| goto break2; | switch(c) { |
| case '$': | |
| push_LS(PC, LS_VAR_NAME_SIMPLE); | |
| RC; | |
| case '^': | |
| push_LS(PC, LS_METHOD_NAME); | |
| RC; | |
| case ']': | |
| if(--lexical_brackets_nestage==0) { | |
| pop_LS(PC); | |
| RC; | |
| } | |
| break; | |
| case ';': // operator_or_fmt;value delim | |
| RC; | |
| case '[': | |
| lexical_brackets_nestage++; | |
| break; | |
| } | } |
| if(c=='}') | break; |
| case LS_VAR_CURLY: | |
| switch(c) { | |
| case '$': | |
| push_LS(PC, LS_VAR_NAME_SIMPLE); | |
| RC; | |
| case '^': | |
| push_LS(PC, LS_METHOD_NAME); | |
| RC; | |
| case '}': | |
| if(--lexical_brackets_nestage==0) { | if(--lexical_brackets_nestage==0) { |
| pop_LS(PC); | pop_LS(PC); |
| result=c; | RC; |
| goto break2; | |
| } | } |
| if(c=='{') | break; |
| case '{': | |
| lexical_brackets_nestage++; | lexical_brackets_nestage++; |
| break; | |
| } | |
| break; | break; |
| /* METHOD */ | // METHOD CALL |
| case LS_METHOD_NAME: | case LS_METHOD_NAME: |
| if(c=='(') { | switch(c) { |
| PC->ls=LS_METHOD_ROUND; | case '[': |
| PC->ls=LS_METHOD_SQUARE; | |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| result=c; | RC; |
| goto break2; | case '{': |
| } | |
| if(c=='{') { | |
| PC->ls=LS_METHOD_CURLY; | PC->ls=LS_METHOD_CURLY; |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| result=c; | RC; |
| goto break2; | case '.': // name part delim |
| } | case '$': // name part subvar |
| if(c=='.'/* name part delim */ || c=='$'/* name part subvar */) { | case ':': // ':name' or 'class:name' |
| result=c; | RC; |
| goto break2; | |
| } | } |
| break; | break; |
| case LS_METHOD_ROUND: | |
| if(c=='$') { | case LS_METHOD_SQUARE: |
| push_LS(PC); PC->ls=LS_VAR_NAME_SIMPLE; | switch(c) { |
| result=c; | case '$': |
| goto break2; | push_LS(PC, LS_VAR_NAME_SIMPLE); |
| } | RC; |
| if(c=='^') { | case '^': |
| push_LS(PC); PC->ls=LS_METHOD_NAME; | push_LS(PC, LS_METHOD_NAME); |
| result=c; | RC; |
| goto break2; | case ';': // param delim |
| } | RC; |
| if(c==';'/* param delim */) { | case ']': |
| result=c; | |
| goto break2; | |
| } | |
| if(c==')') | |
| if(--lexical_brackets_nestage==0) { | if(--lexical_brackets_nestage==0) { |
| PC->ls=LS_METHOD_AFTER; | PC->ls=LS_METHOD_AFTER; |
| result=c; | RC; |
| goto break2; | |
| } | } |
| if(c=='(') | break; |
| case '[': | |
| lexical_brackets_nestage++; | lexical_brackets_nestage++; |
| break; | |
| } | |
| break; | break; |
| case LS_METHOD_CURLY: | case LS_METHOD_CURLY: |
| if(c=='$') { | switch(c) { |
| push_LS(PC); PC->ls=LS_VAR_NAME_SIMPLE; | case '$': |
| result=c; | push_LS(PC, LS_VAR_NAME_SIMPLE); |
| goto break2; | RC; |
| } | case '^': |
| if(c=='^') { | push_LS(PC, LS_METHOD_NAME); |
| push_LS(PC); PC->ls=LS_METHOD_NAME; | RC; |
| result=c; | case '}': |
| goto break2; | |
| } | |
| if(c=='}') | |
| if(--lexical_brackets_nestage==0) { | if(--lexical_brackets_nestage==0) { |
| PC->ls=LS_METHOD_AFTER; | PC->ls=LS_METHOD_AFTER; |
| result=c; | RC; |
| goto break2; | |
| } | } |
| if(c=='{') | break; |
| case '{': | |
| lexical_brackets_nestage++; | lexical_brackets_nestage++; |
| break; | |
| } | |
| break; | break; |
| case LS_METHOD_AFTER: | case LS_METHOD_AFTER: |
| if(c=='(') {/* )( }( */ | if(c=='[') {/* )( }( */ |
| PC->ls=LS_METHOD_ROUND; | PC->ls=LS_METHOD_SQUARE; |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| result=c; | RC; |
| goto break2; | |
| } | } |
| if(c=='{') {/* ){ }{ */ | if(c=='{') {/* ){ }{ */ |
| PC->ls=LS_METHOD_CURLY; | PC->ls=LS_METHOD_CURLY; |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| result=c; | RC; |
| goto break2; | |
| } | } |
| pop_LS(PC); | pop_LS(PC); |
| PC->source--; PC->col--; | PC->source--; if(--PC->col<0) { PC->line--; PC->col=-1; } |
| result=END_OF_NAME; | result=EON; |
| goto break2; | goto break2; |
| } | } |
| if (c == 0) { | if(c==0) { |
| result=-1; | result=-1; |
| PC->source--; PC->col--; | |
| break; | break; |
| } | } |
| } | } |
| break2: | break2: |
| if(PC->source-1<=start) | if(begin==end) |
| return result; | return result; |
| else { | else { |
| PC->pending_state=result; | PC->pending_state=result; |
| /* append last piece */ | // strip last \n before LS_DEF_NAME or EOF |
| PC->string->APPEND(start, PC->source-start-1, PC->file, start_line/*, start_col*/); | if((c=='@' || c==0) && end[-1]=='\n') |
| /* create STRING value: array of OP_STRING+string */ | end--; |
| *lvalp=L(PC->string); | if(end!=begin) { |
| /* new pieces storage */ | // append last piece |
| PC->string=new(pool) String(pool); | PC->string->APPEND(begin, end-begin, PC->file, begin_line/*, start_col*/); |
| /* go */ | } |
| // create STRING value: array of OP_VALUE+vstring | |
| *lvalp=SL(NEW VString(*PC->string)); | |
| // new pieces storage | |
| PC->string=NEW String(POOL); | |
| // go! | |
| return STRING; | return STRING; |
| } | } |
| } | } |
| int real_yyerror (parse_control *pc, char *s) /* Called by yyparse on error */ | int real_yyerror(parse_control *pc, char *s) /* Called by yyparse on error */ |
| { | { |
| fprintf (stderr, "[%s]\n", s); | //fprintf(stderr, "[%s]\n", s); |
| s[MAX_STRING-1]=0; strcpy(pc->error, s); | strncpy(pc->error, s, MAX_STRING); // TODO: перепроверить с треклятым последним байтом |
| return 1; | return 1; |
| } | } |
| static void | static void |
| yyprint ( | yyprint( |
| FILE *file, | FILE *file, |
| int type, | int type, |
| YYSTYPE value) | YYSTYPE value) |
| { | { |
| if (type == STRING) | if(type==STRING) |
| fprintf (file, " \"%s\"", LA2S(value)->cstr()); | fprintf(file, " \"%s\"", SLA2S(value)->cstr()); |
| } | } |