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| version 1.88, 2001/03/11 07:52:42 | version 1.118, 2001/03/27 14:50:47 |
|---|---|
| Line 1 | Line 1 |
| /* | /** @file |
| Parser | Parser: compiler(lexical parser and grammar). |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexander Petrosyan <paf@design.ru> | |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | |
| $Id$ | $Id$ |
| */ | */ |
| /* | /** |
| TODO.parser4: | @todo parser4: |
| cache compiled code from request to request. to do that... | - cache compiled code from request to request. to do that... |
| 1: make method definitions, @CLASS, @BASE, @USE instructions, | -#: make method definitions, @CLASS, @BASE, @USE instructions, |
| which would be executed afterwards, and actions | which would be executed afterwards, and actions |
| now performed at compile time would be delayed to run time. | now performed at compile time would be delayed to run time. |
| 2: make cache expiration on time and on disk-change of class source | -#: make cache expiration on time and on disk-change of class source |
| 3: in apache use subpools for compiled class storage | -#: in apache use subpools for compiled class storage |
| 4: in iis make up specialized Pool object for that | -#: in iis make up specialized Pool object for that |
| */ | */ |
| %{ | %{ |
| #define YYSTYPE Array/*<op>*/ * | #define YYSTYPE Array/*<Operation>*/ * |
| #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 "pa_config_includes.h" | |
| #include <stdio.h> | #include <stdio.h> |
| #include <string.h> | |
| #include <stdlib.h> | #include <stdlib.h> |
| #include <ctype.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 "core.h" | #include "pa_globals.h" |
| #define SELF_ELEMENT_NAME "self" | #define SELF_ELEMENT_NAME "self" |
| #define USE_CONTROL_METHOD_NAME "USE" | #define USE_CONTROL_METHOD_NAME "USE" |
| Line 46 int yylex(YYSTYPE *lvalp, void *pc); | Line 49 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 | #undef NEW |
| #define NEW new(POOL) | #define NEW new(POOL) |
| #ifndef DOXYGEN | |
| %} | %} |
| %pure_parser | %pure_parser |
| Line 59 int yylex(YYSTYPE *lvalp, void *pc); | Line 63 int yylex(YYSTYPE *lvalp, void *pc); |
| %token BOGUS | %token BOGUS |
| %token BAD_STRING_COMPARISON_OPERATOR | %token BAD_STRING_COMPARISON_OPERATOR |
| %token BAD_HEX_LITERAL | |
| %token LAND "&&" | %token LAND "&&" |
| %token LOR "||" | %token LOR "||" |
| Line 79 int yylex(YYSTYPE *lvalp, void *pc); | Line 84 int yylex(YYSTYPE *lvalp, void *pc); |
| %token DEF "def" | %token DEF "def" |
| %token IN "in" | %token IN "in" |
| %token FEXISTS "-f" | %token FEXISTS "-f" |
| %token IS "is" | |
| /* logical */ | /* logical */ |
| %left "is" | |
| %left "lt" "gt" "le" "ge" | %left "lt" "gt" "le" "ge" |
| %left "eq" "ne" | %left "eq" "ne" |
| %left '<' '>' "<=" ">=" "##" | %left '<' '>' "<=" ">=" "##" |
| Line 108 all: | Line 115 all: |
| 0, 0, /*min, max numbered_params_count*/ | 0, 0, /*min, max numbered_params_count*/ |
| 0/*param_names*/, 0/*local_names*/, | 0/*param_names*/, 0/*local_names*/, |
| $1/*parser_code*/, 0/*native_code*/); | $1/*parser_code*/, 0/*native_code*/); |
| PC->vclass->add_method(*main_method_name, method); | PC.cclass->add_method(*main_method_name, method); |
| } | } |
| | methods; | | methods; |
| Line 122 control_method: '@' STRING '\n' | Line 129 control_method: '@' STRING '\n' |
| const String& command=*SLA2S($2); | const String& command=*SLA2S($2); |
| YYSTYPE strings_code=$4; | YYSTYPE strings_code=$4; |
| if(strings_code->size()<1*2) { | if(strings_code->size()<1*2) { |
| strcpy(PC->error, "@"); | strcpy(PC.error, "@"); |
| strcat(PC->error, command.cstr()); | strcat(PC.error, command.cstr()); |
| strcat(PC->error, " is empty"); | strcat(PC.error, " is empty"); |
| YYERROR; | YYERROR; |
| } | } |
| if(command==CLASS_NAME) { | if(command==CLASS_NAME) { |
| if(PC->vclass!=&PC->request->root_class) { // already changed from default? | if(PC.cclass!=&PC.request->ROOT) { // already changed from default? |
| strcpy(PC->error, "class already have a name '"); | strcpy(PC.error, "class already have a name '"); |
| strncat(PC->error, PC->vclass->name().cstr(), 100); | strncat(PC.error, PC.cclass->name().cstr(), 100); |
| strcat(PC->error, "'"); | strcat(PC.error, "'"); |
| YYERROR; | YYERROR; |
| } | } |
| if(strings_code->size()==1*2) { | if(strings_code->size()==1*2) { |
| // new class' name | // new class' name |
| const String *name=SLA2S(strings_code); | const String *name=SLA2S(strings_code); |
| // creating the class | // creating the class |
| PC->vclass=NEW VClass(POOL); | PC.cclass=NEW VClass(POOL); |
| PC->vclass->set_name(*name); | PC.cclass->set_name(*name); |
| // defaulting base. may change with @BASE | // defaulting base. may change with @BASE |
| PC->vclass->set_base(PC->request->root_class); | PC.cclass->set_base(PC.request->ROOT); |
| // append to request's classes | // append to request's classes |
| PC->request->classes_array()+=PC->vclass; | PC.request->classes().put(*name, PC.cclass); |
| PC->request->classes().put(*name, PC->vclass); | |
| } else { | } else { |
| strcpy(PC->error, "@"CLASS_NAME" must contain sole name"); | strcpy(PC.error, "@"CLASS_NAME" must contain sole name"); |
| YYERROR; | YYERROR; |
| } | } |
| } else { | } else { |
| if(command==USE_CONTROL_METHOD_NAME) { | if(command==USE_CONTROL_METHOD_NAME) { |
| for(int i=0; i<strings_code->size(); i+=2) { | for(int i=0; i<strings_code->size(); i+=2) |
| String file(*SLA2S(strings_code, i)); | PC.request->use_file( |
| file.APPEND_CONST(".p"); | PC.request->absolute(*SLA2S(strings_code, i))); |
| PC->request->use(file.cstr()); | |
| } | |
| } else if(command==BASE_NAME) { | } else if(command==BASE_NAME) { |
| if(PC->vclass->base()!=&PC->request->root_class) { // already changed from default? | if(PC.cclass->base()!=&PC.request->ROOT) { // already changed from default? |
| strcpy(PC->error, "class already have a base '"); | strcpy(PC.error, "class already have a base '"); |
| strncat(PC->error, PC->vclass->base()->name().cstr(), 100); | strncat(PC.error, PC.cclass->base()->name().cstr(), 100); |
| strcat(PC->error, "'"); | strcat(PC.error, "'"); |
| YYERROR; | YYERROR; |
| } | } |
| if(strings_code->size()==1*2) { | if(strings_code->size()==1*2) { |
| // TODO: преодолеть self и циклические base | |
| const String& base_name=*SLA2S(strings_code); | const String& base_name=*SLA2S(strings_code); |
| VClass *base=static_cast<VClass *>( | VClass *base=static_cast<VClass *>( |
| PC->request->classes().get(base_name)); | PC.request->classes().get(base_name)); |
| if(!base) { | if(!base) { |
| strcpy(PC->error, base_name.cstr()); | strcpy(PC.error, base_name.cstr()); |
| strcat(PC->error, ": undefined class in @"BASE_NAME); | strcat(PC.error, ": undefined class in @"BASE_NAME); |
| YYERROR; | |
| } | |
| // @CLASS == @BASE sanity check | |
| if(PC.cclass==base) { | |
| strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME); | |
| YYERROR; | YYERROR; |
| } | } |
| PC->vclass->set_base(*base); | PC.cclass->set_base(*base); |
| } else { | } else { |
| strcpy(PC->error, "@"BASE_NAME" must contain sole name"); | strcpy(PC.error, "@"BASE_NAME" must contain sole name"); |
| YYERROR; | YYERROR; |
| } | } |
| } else { | } else { |
| strcpy(PC->error, command.cstr()); | strcpy(PC.error, "'"); |
| strcat(PC->error, ": invalid special name. valid names are " | strncat(PC.error, command.cstr(), MAX_STRING/2); |
| CLASS_NAME", "USE_CONTROL_METHOD_NAME" and "BASE_NAME); | strcat(PC.error, "' invalid special name. valid names are " |
| "'"CLASS_NAME"', '"USE_CONTROL_METHOD_NAME"' and '"BASE_NAME"'"); | |
| YYERROR; | YYERROR; |
| } | } |
| } | } |
| Line 215 code_method: '@' STRING bracketed_maybe_ | Line 224 code_method: '@' STRING bracketed_maybe_ |
| 0, 0/*min,max numbered_params_count*/, | 0, 0/*min,max numbered_params_count*/, |
| params_names, locals_names, | params_names, locals_names, |
| $7, 0); | $7, 0); |
| PC->vclass->add_method(*name, method); | PC.cclass->add_method(*name, method); |
| }; | }; |
| maybe_bracketed_strings: empty | bracketed_maybe_strings; | maybe_bracketed_strings: empty | bracketed_maybe_strings; |
| Line 229 maybe_comment: empty | STRING; | Line 238 maybe_comment: empty | STRING; |
| maybe_codes: empty | codes; | maybe_codes: empty | codes; |
| codes: code | codes code { | codes: code | codes code { $$=$1; P($$, $2) }; |
| $$=$1; | |
| P($$, $2); | |
| }; | |
| code: write_string | action; | code: write_string | action; |
| action: get | put | with | call; | action: get | put | with | call; |
| Line 240 action: get | put | with | call; | Line 246 action: get | put | with | call; |
| get: get_value { | get: get_value { |
| $$=$1; /* stack: resulting value */ | $$=$1; /* stack: resulting value */ |
| O($$, OP_WRITE); /* value=pop; wcontext.write(value) */ | O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */ |
| }; | }; |
| 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; |
| Line 310 construct_by_code: '[' any_constructor_c | Line 316 construct_by_code: '[' any_constructor_c |
| O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */ | O($$, OP_CONSTRUCT_VALUE); /* value=pop; name=pop; context=pop; construct(context,name,value) */ |
| } | } |
| ; | ; |
| construct_by_expr: '(' any_expr ')' { | construct_by_expr: '(' expr_value ')' { |
| $$=$2; /* stack: context, name, value */ | $$=$2; /* stack: context, name, value */ |
| O($$, OP_CONSTRUCT_EXPR); /* value=pop; name=pop; context=pop; construct(context,name,value) */ | O($$, OP_CONSTRUCT_EXPR); /* value=pop; name=pop; context=pop; construct(context,name,value) */ |
| } | } |
| Line 333 codes__excluding_sole_str_literal: actio | Line 339 codes__excluding_sole_str_literal: actio |
| call: call_value { | call: call_value { |
| $$=$1; /* stack: value */ | $$=$1; /* stack: value */ |
| O($$, OP_WRITE); /* value=pop; wcontext.write(value) */ | O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */ |
| }; | }; |
| call_value: '^' call_name store_params EON { /* ^field.$method{vasya} */ | call_value: '^' call_name store_params EON { /* ^field.$method{vasya} */ |
| $$=$2; /* with_xxx,diving code; stack: context,method_junction */ | $$=$2; /* with_xxx,diving code; stack: context,method_junction */ |
| Line 352 store_param: | Line 358 store_param: |
| ; | ; |
| store_square_param: '[' store_code_param_parts ']' {$$=$2}; | store_square_param: '[' store_code_param_parts ']' {$$=$2}; |
| store_round_param: '(' store_expr_param_parts ')' {$$=$2}; | store_round_param: '(' store_expr_param_parts ')' {$$=$2}; |
| store_curly_param: '{' maybe_codes '}' { | store_curly_param: '{' store_curly_param_parts '}' {$$=$2}; |
| $$=N(POOL); | |
| PCA($$, $2); | |
| }; | |
| store_code_param_parts: | store_code_param_parts: |
| empty /* optimized [] case */ | |
| | store_code_param_parts_not_empty | |
| ; | |
| store_code_param_parts_not_empty: | |
| store_code_param_part | store_code_param_part |
| | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) } | | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) } |
| ; | ; |
| Line 364 store_expr_param_parts: | Line 371 store_expr_param_parts: |
| store_expr_param_part | store_expr_param_part |
| | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) } | | store_expr_param_parts ';' store_expr_param_part { $$=$1; P($$, $3) } |
| ; | ; |
| store_curly_param_parts: | |
| store_curly_param_part | |
| | store_curly_param_parts ';' store_curly_param_part { $$=$1; P($$, $3) } | |
| ; | |
| store_code_param_part: | store_code_param_part: |
| empty /* optimized [] case */ | STRING { /* optimized [STRING] case */ |
| | STRING { /* optimized [STRING] case */ | |
| $$=$1; | $$=$1; |
| O($$, OP_STORE_PARAM); | O($$, OP_STORE_PARAM); |
| } | } |
| Line 377 store_code_param_part: | Line 387 store_code_param_part: |
| ; | ; |
| store_expr_param_part: write_expr_value { | store_expr_param_part: write_expr_value { |
| $$=N(POOL); | $$=N(POOL); |
| PEA($$, $1); | |
| }; | |
| store_curly_param_part: maybe_codes { | |
| $$=N(POOL); | |
| PCA($$, $1); | PCA($$, $1); |
| }; | }; |
| write_expr_value: any_expr { | write_expr_value: expr_value { |
| $$=$1; | $$=$1; |
| O($$, OP_WRITE); | O($$, OP_WRITE_EXPR_RESULT); |
| }; | }; |
| /* name */ | /* name */ |
| Line 415 name_expr_with_subvar_value: STRING subv | Line 429 name_expr_with_subvar_value: STRING subv |
| $$=N(POOL); | $$=N(POOL); |
| O($$, OP_CREATE_EWPOOL); | O($$, OP_CREATE_EWPOOL); |
| P($$, $1); | P($$, $1); |
| O($$, OP_WRITE); | O($$, OP_WRITE_VALUE); |
| P($$, $2); | P($$, $2); |
| O($$, OP_REDUCE_EWPOOL); | O($$, OP_REDUCE_EWPOOL); |
| }; | }; |
| Line 449 with: '$' name_without_curly_rdive '{' c | Line 463 with: '$' name_without_curly_rdive '{' c |
| O($$, OP_CREATE_RWPOOL); | O($$, OP_CREATE_RWPOOL); |
| P($$, $4); | P($$, $4); |
| O($$, OP_REDUCE_RWPOOL); | O($$, OP_REDUCE_RWPOOL); |
| O($$, OP_WRITE); | O($$, OP_WRITE_VALUE); |
| }; | }; |
| /* expr */ | /* expr */ |
| any_expr: | |
| empty_double_value /* optimized $var() case */ | |
| | expr_value /* $var(something) */ | |
| ; | |
| expr_value: expr { | expr_value: expr { |
| if(($$=$1)->size()==2) // only one string literal in there? | if(($$=$1)->size()==2) // only one string literal in there? |
| change_string_literal_to_double_literal($$); // make that string literal Double | change_string_literal_to_double_literal($$); // make that string literal Double |
| Line 499 expr: | Line 509 expr: |
| | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) } | | expr "ge" expr { $$=$1; P($$, $3); O($$, OP_STR_GE) } |
| | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) } | | expr "eq" expr { $$=$1; P($$, $3); O($$, OP_STR_EQ) } |
| | expr "ne" expr { $$=$1; P($$, $3); O($$, OP_STR_NE) } | | 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 { | string_inside_quotes_value: maybe_codes { |
| Line 511 string_inside_quotes_value: maybe_codes | Line 522 string_inside_quotes_value: maybe_codes |
| /* basics */ | /* basics */ |
| write_string: STRING { | write_string: STRING { |
| // optimized from OP_STRING+OP_WRITE to OP_STRING__WRITE | // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE |
| change_string_literal_to_write_string_literal($$=$1) | change_string_literal_to_write_string_literal($$=$1) |
| }; | }; |
| empty_double_value: /* empty */ { $$=VL(NEW VDouble(POOL, 0)) }; | |
| empty_string_value: /* empty */ { $$=VL(NEW VString(POOL)) }; | empty_string_value: /* empty */ { $$=VL(NEW VString(POOL)) }; |
| empty: /* empty */ { $$=N(POOL) }; | empty: /* empty */ { $$=N(POOL) }; |
| %% | %% |
| #endif | |
| /* | /* |
| 000$111(2222)00 | 000$111(2222)00 |
| Line 537 empty: /* empty */ { $$=N(POOL) }; | Line 548 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.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; | int skip_analized=0; |
| while(true) { | while(true) { |
| c=*(end=(PC->source++)); | c=*(end=(PC.source++)); |
| if(c=='\n') { | if(c=='\n') { |
| PC->line++; | PC.line++; |
| PC->col=0; | PC.col=0; |
| } else | } else |
| PC->col++; | PC.col++; |
| // todo: # in 0+1 column comment | if(c=='^' && PC.ls!=LS_COMMENT) |
| switch(*PC.source) { | |
| // escaping: ^^ ^$ ^; ^) ^} ^( ^{ ^" | // escaping: ^^ ^$ ^; ^) ^} ^( ^{ ^" |
| if(c=='^') | |
| switch(*PC->source) { | |
| 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(begin, end-begin, PC.file, begin_line); |
| } | } |
| // reset piece 'begin' position & line | // reset piece 'begin' position & line |
| begin=PC->source; // ^ | begin=PC.source; // ^ |
| begin_line=PC->line; | begin_line=PC.line; |
| // skip over ^ and _ | // skip over ^ and _ |
| 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(begin, end-begin, PC.file, begin_line); | |
| } | |
| // #HH ? | |
| if(PC.source[0]=='#' && PC.source[1] && PC.source[2]) { | |
| char *hex=(char *)POOL.malloc(1); | |
| hex[0]= | |
| hex_value[(unsigned char)PC.source[1]]*0x10+ | |
| hex_value[(unsigned char)PC.source[2]]; | |
| if(hex[0]==0) { | |
| result=BAD_HEX_LITERAL; | |
| goto break2; // wrong hex value[no ^#00 chars allowed]: bail out | |
| } | |
| // append char(hex(HH)) | |
| PC.string->APPEND(hex, 1, PC.file, begin_line); | |
| // skip over ^#HH | |
| PC.source+=3; | |
| PC.col+=3; | |
| // reset piece 'begin' position & line | |
| begin=PC.source; // ^ | |
| begin_line=PC.line; | |
| continue; | |
| } | |
| break; | |
| } | } |
| switch(PC->ls) { | // #comment start skipping |
| if(c=='#' && PC.col==1) { | |
| if(end!=begin) { | |
| // append piece till # | |
| PC.string->APPEND(begin, end-begin, PC.file, begin_line); | |
| } | |
| // fall into COMMENT lexical state [wait for \n] | |
| push_LS(PC, LS_COMMENT); | |
| } | |
| switch(PC.ls) { | |
| // USER'S = NOT OURS | // USER'S = NOT OURS |
| case LS_USER: | case LS_USER: |
| Line 596 int yylex(YYSTYPE *lvalp, void *pc) { | Line 642 int yylex(YYSTYPE *lvalp, void *pc) { |
| push_LS(PC, LS_METHOD_NAME); | push_LS(PC, LS_METHOD_NAME); |
| RC; | RC; |
| case '@': | case '@': |
| if(PC->col==0+1) { | if(PC.col==0+1) { |
| push_LS(PC, LS_DEF_NAME); | push_LS(PC, LS_DEF_NAME); |
| RC; | RC; |
| } | } |
| Line 604 int yylex(YYSTYPE *lvalp, void *pc) { | Line 650 int yylex(YYSTYPE *lvalp, void *pc) { |
| } | } |
| break; | break; |
| // #COMMENT | |
| case LS_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: |
| switch(c) { | switch(c) { |
| Line 623 int yylex(YYSTYPE *lvalp, void *pc) { | Line 681 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; |
| Line 636 int yylex(YYSTYPE *lvalp, void *pc) { | Line 694 int yylex(YYSTYPE *lvalp, void *pc) { |
| 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 650 int yylex(YYSTYPE *lvalp, void *pc) { | Line 708 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 667 int yylex(YYSTYPE *lvalp, void *pc) { | Line 725 int yylex(YYSTYPE *lvalp, void *pc) { |
| case LS_DEF_SPECIAL_BODY: | case LS_DEF_SPECIAL_BODY: |
| if(c=='\n') { | if(c=='\n') { |
| switch(*PC->source) { | switch(*PC.source) { |
| case '@': case 0: // end of special_code | case '@': case 0: // end of special_code |
| pop_LS(PC); | pop_LS(PC); |
| break; | break; |
| Line 682 int yylex(YYSTYPE *lvalp, void *pc) { | Line 740 int yylex(YYSTYPE *lvalp, void *pc) { |
| 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 '$': | case '$': |
| Line 697 int yylex(YYSTYPE *lvalp, void *pc) { | Line 755 int yylex(YYSTYPE *lvalp, void *pc) { |
| lexical_brackets_nestage++; | lexical_brackets_nestage++; |
| RC; | RC; |
| case '-': | case '-': |
| if(*PC->source=='f') { // -f | if(*PC.source=='f') { // -f |
| skip_analized=1; | skip_analized=1; |
| result=FEXISTS; | result=FEXISTS; |
| } else | } else |
| Line 708 int yylex(YYSTYPE *lvalp, void *pc) { | Line 766 int yylex(YYSTYPE *lvalp, void *pc) { |
| case ';': | case ';': |
| RC; | RC; |
| case '&': case '|': case '#': | case '&': case '|': case '#': |
| if(*PC->source==c) { // && || | if(*PC.source==c) { // && || |
| result=c=='#'?LXOR:c=='&'?LAND:LOR; | result=c=='#'?LXOR:c=='&'?LAND:LOR; |
| skip_analized=1; | skip_analized=1; |
| } else | } else |
| result=c; | result=c; |
| goto break2; | goto break2; |
| case '<': case '>': case '=': case '!': | case '<': case '>': case '=': case '!': |
| if(*PC->source=='=') { // <= >= == != | if(*PC.source=='=') { // <= >= == != |
| skip_analized=1; | skip_analized=1; |
| switch(c) { | switch(c) { |
| case '<': result=NLE; break; | case '<': result=NLE; break; |
| Line 731 int yylex(YYSTYPE *lvalp, void *pc) { | Line 789 int yylex(YYSTYPE *lvalp, void *pc) { |
| 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(*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] |
| result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR; | case 't': // lt gt [et nt] |
| skip_analized=1; | result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR; |
| goto break2; | skip_analized=1; |
| case 'e': // le ge ne [ee] | goto break2; |
| result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR; | case 'e': // le ge ne [ee] |
| skip_analized=1; | result=c=='l'?SLE:c=='g'?SGE:c=='n'?SNE:BAD_STRING_COMPARISON_OPERATOR; |
| goto break2; | skip_analized=1; |
| case 'q': // eq [lq gq nq] | goto break2; |
| result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR; | case 'q': // eq [lq gq nq] |
| skip_analized=1; | result=c=='e'?SEQ:BAD_STRING_COMPARISON_OPERATOR; |
| goto break2; | skip_analized=1; |
| goto break2; | |
| } | |
| } | } |
| break; | break; |
| case 'i': | case 'i': |
| if(end==begin) // right after whitespace | if(end==begin) // right after whitespace |
| if(PC->source[0]=='n') { // in | if(isspace(PC.source[1])) { |
| skip_analized=1; | switch(PC.source[0]) { |
| result=IN; | case 'n': // in |
| goto break2; | skip_analized=1; |
| result=IN; | |
| goto break2; | |
| case 's': // is | |
| skip_analized=1; | |
| result=IS; | |
| goto break2; | |
| } | |
| } | } |
| break; | break; |
| 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; | skip_analized=2; |
| result=DEF; | result=DEF; |
| goto break2; | goto break2; |
| Line 771 int yylex(YYSTYPE *lvalp, void *pc) { | Line 838 int yylex(YYSTYPE *lvalp, void *pc) { |
| // that's a leading|traling space or after-operator-space | // that's a leading|traling space or after-operator-space |
| // ignoring it | // ignoring it |
| // reset piece 'begin' position & line | // reset piece 'begin' position & line |
| begin=PC->source; // after whitespace char | begin=PC.source; // after whitespace char |
| begin_line=PC->line; | begin_line=PC.line; |
| continue; | continue; |
| } | } |
| break; | break; |
| Line 780 int yylex(YYSTYPE *lvalp, void *pc) { | Line 847 int yylex(YYSTYPE *lvalp, void *pc) { |
| // VARIABLE GET/PUT/WITH | // VARIABLE GET/PUT/WITH |
| case LS_VAR_NAME_SIMPLE: | case LS_VAR_NAME_SIMPLE: |
| case LS_EXPRESSION_VAR_NAME: | case LS_EXPRESSION_VAR_NAME: |
| if(PC->ls==LS_EXPRESSION_VAR_NAME) { | if(PC.ls==LS_EXPRESSION_VAR_NAME) { |
| // name in expr ends also before binary operators | // name in expr ends also before binary operators |
| switch(c) { | switch(c) { |
| 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 798 int yylex(YYSTYPE *lvalp, void *pc) { | Line 863 int yylex(YYSTYPE *lvalp, void *pc) { |
| 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 '!': | |
| // common delimiters | |
| 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; |
| case '[': | case '[': |
| PC->ls=LS_VAR_SQUARE; | 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_VAR_ROUND; | PC.ls=LS_VAR_ROUND; |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| RC; | RC; |
| case '.': // name part delim | case '.': // name part delim |
| Line 884 int yylex(YYSTYPE *lvalp, void *pc) { | Line 954 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; | 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; | lexical_brackets_nestage=1; |
| RC; | RC; |
| case '(': | case '(': |
| PC->ls=LS_METHOD_ROUND; | PC.ls=LS_METHOD_ROUND; |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| RC; | RC; |
| case '.': // name part delim | case '.': // name part delim |
| Line 914 int yylex(YYSTYPE *lvalp, void *pc) { | Line 984 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 932 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1002 int yylex(YYSTYPE *lvalp, void *pc) { |
| 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 946 int yylex(YYSTYPE *lvalp, void *pc) { | Line 1018 int yylex(YYSTYPE *lvalp, void *pc) { |
| 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; | 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->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 979 break2: | Line 1051 break2: |
| } | } |
| if(end!=begin) { // last piece still alive? | if(end!=begin) { // last piece still alive? |
| // append it | // append it |
| PC->string->APPEND(begin, end-begin, PC->file, begin_line/*, start_col*/); | PC.string->APPEND(begin, end-begin, PC.file, begin_line/*, start_col*/); |
| } | } |
| } | } |
| if(PC->string->size()) { // something accumulated? | if(PC.string->size()) { // 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(*PC.string)); |
| // new pieces storage | // new pieces storage |
| PC->string=NEW String(POOL); | PC.string=NEW String(POOL); |
| // make current result be pending for next call, return STRING for now | // make current result be pending for next call, return STRING for now |
| PC->pending_state=result; result=STRING; | PC.pending_state=result; result=STRING; |
| } | } |
| if(skip_analized) { | if(skip_analized) { |
| PC->source+=skip_analized; PC->col+=skip_analized; | PC.source+=skip_analized; PC.col+=skip_analized; |
| } | } |
| return result; | 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\"", SLA2S(value)->cstr()); | |
| } |