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| version 1.2, 2001/02/20 19:21:13 | version 1.179, 2002/02/07 11:16:28 |
|---|---|
| Line 1 | Line 1 |
| %{ | %{ |
| #define YYSTYPE void * | /** @file |
| #define YYPARSE_PARAM pc | Parser: compiler(lexical parser and grammar). |
| #define YYLEX_PARAM pc | |
| #define YYDEBUG 1 | |
| #define YYERROR_VERBOSE | |
| #define YYPRINT(file, type, value) yyprint (file, type, value) | |
| #include <stdio.h> | |
| #include <string.h> | |
| #include <stdlib.h> | |
| #include "compile_tools.h" | Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | |
| $Id$ | |
| */ | |
| int yyerror (char *s); | /** |
| static void yyprint (FILE *file, int type, YYSTYPE value); | @todo parser4: |
| int yylex(YYSTYPE *lvalp, void *pc); | - 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 Array/*<Operation>*/ * | |
| #define YYPARSE_PARAM pc | |
| #define YYLEX_PARAM pc | |
| #define YYDEBUG 1 | |
| #define YYERROR_VERBOSE 1 | |
| #define yyerror(msg) real_yyerror((parse_control *)pc, msg) | |
| #define YYPRINT(file, type, value) yyprint(file, type, value) | |
| #define PC ((struct parse_control *)pc) | #include "compile_tools.h" |
| #include "pa_value.h" | |
| #include "pa_request.h" | |
| #include "pa_vobject.h" | |
| #include "pa_vdouble.h" | |
| #include "pa_globals.h" | |
| #include "pa_vvoid.h" | |
| #define SELF_ELEMENT_NAME "self" | |
| #define USE_CONTROL_METHOD_NAME "USE" | |
| static int real_yyerror(parse_control *pc, char *s); | |
| static void yyprint(FILE *file, int type, YYSTYPE value); | |
| static int yylex(YYSTYPE *lvalp, void *pc); | |
| // local convinient inplace typecast & var | |
| #define PC (*(parse_control *)pc) | |
| #define POOL (*PC.pool) | |
| #undef NEW | |
| #define NEW new(POOL) | |
| #ifndef DOXYGEN | |
| %} | %} |
| %pure_parser | %pure_parser |
| %token BREAK | %token EON |
| %token STR_LITERAL | %token STRING |
| %token BOGUS | %token BOGUS |
| %token BAD_STRING_COMPARISON_OPERATOR | |
| %token BAD_HEX_LITERAL | |
| %token BAD_METHOD_DECL_START | |
| %token LAND "&&" | |
| %token LOR "||" | |
| %token LXOR "##" | |
| %token NLE "<=" | |
| %token NGE ">=" | |
| %token NEQ "==" | |
| %token NNE "!=" | |
| %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 */ | |
| %left "##" | |
| %left "||" | |
| %left "&&" | |
| %left '<' '>' "<=" ">=" "lt" "gt" "le" "ge" | |
| %left "==" "!=" "eq" "ne" | |
| %left "is" "def" "in" "-f" "-d" | |
| %left '!' | |
| /* bitwise */ | |
| %left '#' | |
| %left '|' | |
| %left '&' | |
| %left '~' | |
| /* numerical */ | |
| %left '-' '+' | |
| %left '*' '/' '%' '\\' | |
| %left NEG /* negation: unary - */ | |
| %% | %% |
| all: | |
| one_big_piece { | |
| Method& method=*NEW Method(POOL, | |
| *main_method_name, | |
| Method::CT_ANY, | |
| 0, 0, /*min, max numbered_params_count*/ | |
| 0/*param_names*/, 0/*local_names*/, | |
| $1/*parser_code*/, 0/*native_code*/); | |
| PC.cclass->add_method(*main_method_name, method); | |
| } | |
| | methods; | |
| result: input { PC->result=$1 }; | methods: method | methods method; |
| input: empty | codes; | one_big_piece: maybe_codes; |
| /* codes */ | method: control_method | code_method; |
| codes: code | codes code { | control_method: '@' STRING '\n' |
| $$=$1; | maybe_control_strings { |
| P(&$$,$2); | const String& command=*LA2S($2); |
| YYSTYPE strings_code=$4; | |
| if(strings_code->size()<1*2) { | |
| strcpy(PC.error, "@"); | |
| strcat(PC.error, command.cstr()); | |
| strcat(PC.error, " is empty"); | |
| YYERROR; | |
| } | |
| if(command==CLASS_NAME) { | |
| if(PC.cclass->base()) { // already changed from default? | |
| strcpy(PC.error, "class already have a name '"); | |
| strncat(PC.error, PC.cclass->name().cstr(), 100); | |
| strcat(PC.error, "'"); | |
| YYERROR; | |
| } | |
| if(strings_code->size()==1*2) { | |
| // new class' name | |
| const String *name=LA2S(strings_code); | |
| // creating the class | |
| PC.cclass=NEW VClass(POOL); | |
| PC.cclass->set_name(*name); | |
| // append to request's classes | |
| PC.request->classes().put(*name, PC.cclass); | |
| } else { | |
| strcpy(PC.error, "@"CLASS_NAME" must contain sole name"); | |
| YYERROR; | |
| } | |
| } else if(command==USE_CONTROL_METHOD_NAME) { | |
| for(int i=0; i<strings_code->size(); i+=2) | |
| PC.request->use_file(*LA2S(strings_code, i)); | |
| } else if(command==BASE_NAME) { | |
| if(PC.cclass->base()) { // already changed from default? | |
| strcpy(PC.error, "class already have a base '"); | |
| strncat(PC.error, PC.cclass->base()->name().cstr(), 100); | |
| strcat(PC.error, "'"); | |
| YYERROR; | |
| } | |
| if(strings_code->size()==1*2) { | |
| const String& base_name=*LA2S(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; | |
| } | |
| // @CLASS == @BASE sanity check | |
| if(PC.cclass==base) { | |
| strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME); | |
| YYERROR; | |
| } | |
| PC.cclass->set_base(*base); | |
| } else { | |
| strcpy(PC.error, "@"BASE_NAME" must contain sole name"); | |
| 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; | |
| } | |
| }; | }; |
| code: write_str_literal | action; | maybe_control_strings: empty | control_strings; |
| action: get | put | with | call; | 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=LA2S($2); | |
| YYSTYPE params_names_code=$3; | |
| Array *params_names=0; | |
| if(int size=params_names_code->size()) { | |
| params_names=NEW Array(POOL); | |
| for(int i=0; i<size; i+=2) | |
| *params_names+=LA2S(params_names_code, i); | |
| } | |
| /* get */ | YYSTYPE locals_names_code=$4; |
| Array *locals_names=0; | |
| if(int size=locals_names_code->size()) { | |
| locals_names=NEW Array(POOL); | |
| for(int i=0; i<size; i+=2) | |
| *locals_names+=LA2S(locals_names_code, i); | |
| } | |
| get: '$' any_name { | Method& method=*NEW Method(POOL, |
| $$=$2; /* stack: resulting value */ | *name, |
| A(&$$,OP_WRITE); /* value=pop; write(value) */ | Method::CT_ANY, |
| 0, 0/*min,max numbered_params_count*/, | |
| params_names, locals_names, | |
| $7, 0); | |
| PC.cclass->add_method(*name, method); | |
| }; | }; |
| any_name: name_without_curly_rdive BREAK | name_in_curly_rdive; | maybe_bracketed_strings: empty | bracketed_maybe_strings; |
| bracketed_maybe_strings: '[' maybe_strings ']' {$$=$2}; | |
| maybe_strings: empty | strings; | |
| strings: STRING | strings ';' STRING { $$=$1; P($$, $3) }; | |
| maybe_comment: empty | STRING; | |
| /* codes */ | |
| maybe_codes: empty | codes; | |
| codes: code | codes code { $$=$1; P($$, $2) }; | |
| code: write_string | action; | |
| action: get | put | call; | |
| /* get */ | |
| get: get_value { | |
| $$=$1; /* stack: resulting value */ | |
| O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */ | |
| }; | |
| get_value: '$' get_name_value { $$=$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_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_class; |
| то выкинуть её и делать не OP_WITH_READ, а WITH_ROOT | name_without_curly_rdive_read: name_without_curly_rdive_code { |
| TODO: подсмотреть в $1, и если там первым элементом self, | $$=N(POOL); |
| то выкинуть его и делать не OP_WITH_READ, а WITH_SELF | Array *diving_code=$1; |
| */ | const String *first_name=LA2S(diving_code); |
| $$=N(PC->pool); A(&$$, OP_WITH_READ); /* stack: starting context */ | // self.xxx... -> xxx... |
| P(&$$,$1); /* diving code; stack: current context */ | // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+... |
| if(first_name && *first_name==SELF_ELEMENT_NAME) { | |
| O($$, OP_WITH_SELF); /* stack: starting context */ | |
| P($$, diving_code, | |
| /* skip over... */ | |
| diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/); | |
| } else { | |
| O($$, OP_WITH_READ); /* stack: starting context */ | |
| // ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR | |
| // OP_VALUE+string+OP_GET_ELEMENT. -> OP_VALUE+string+OP_GET_ELEMENT_OR_OPERATOR. | |
| if(diving_code->size()==3) | |
| diving_code->put_int(2, OP_GET_ELEMENT_OR_OPERATOR); | |
| P($$, diving_code); | |
| } | |
| /* 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 construct { |
| /* | $$=$2; /* stack: context,name */ |
| TODO: подсмотреть в $3, и если там в первом элементе первая буква ":" | P($$, $3); /* stack: context,name,constructor_value */ |
| то выкинуть её и делать не OP_WITH_OP_WRITE, а WITH_ROOT | }; |
| TODO: подсмотреть в $3, и если там первым элементом self, | name_expr_wdive: |
| то выкинуть его и делать не OP_WITH_OP_WRITE, а WITH_SELF | name_expr_wdive_root |
| если ничего не осталось - $self(xxx) | | name_expr_wdive_write |
| обругать | | name_expr_wdive_class; |
| */ | name_expr_wdive_root: name_expr_dive_code { |
| $$=N(PC->pool); | $$=N(POOL); |
| A(&$$, OP_WITH_WRITE); /* stack: starting context */ | Array *diving_code=$1; |
| P(&$$,$2); /* diving code; stack: context,name */ | const String *first_name=LA2S(diving_code); |
| P(&$$,$4); /* stack: context,name,constructor_value */ | // $self.xxx... -> $xxx... |
| A(&$$,OP_CONSTRUCT); /* value=pop; name=pop; context=pop; construct(context,name,value) */ | // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+... |
| }; | if(first_name && *first_name==SELF_ELEMENT_NAME) { |
| constructor_value: | O($$, OP_WITH_SELF); /* stack: starting context */ |
| constructor_one_param_value | P($$, diving_code, |
| | constructor_two_params_value /* $var(=;2*2) $var(%d;2*2) $var(+;1) */ | /* skip over... */ |
| ; | diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/); |
| constructor_one_param_value: | } else { |
| empty_value /* optimized $var() case */ | O($$, OP_WITH_ROOT); /* stack: starting context */ |
| | STR_LITERAL /* optimized $var(STR_LITERAL) case */ | P($$, diving_code); |
| | complex_constructor_param_value /* $var(something complex) */ | |
| ; | |
| empty_value: empty; | |
| complex_constructor_param_value: complex_constructor_param_body { | |
| $$=N(PC->pool); | |
| A(&$$, OP_CREATE_EWPOOL); /* stack: empty write context */ | |
| P(&$$,$1); /* some codes to that context */ | |
| A(&$$,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: STR_LITERAL ';' constructor_one_param_value { | |
| char *operator_or_fmt=string_cstr(LS($1)); | |
| $$=N(PC->pool); | |
| G(&$$, operator_or_fmt);/* stack: ncontext name char*operator_or_fmt */ | |
| P(&$$, $3); /* stack: ncontext name char*operator_or_fmt expr */ | |
| switch(operator_or_fmt[0]) { | |
| case '=': case '%': | |
| A(&$$, OP_EXPRESSION_EVAL); | |
| break; | |
| case '+': case '-': case '*': case '/': | |
| A(&$$, OP_MODIFY_EVAL); | |
| break; | |
| default: | |
| exception(PC->pool, 0,0, LS($1), "invalid modification operator"); | |
| } | } |
| /* stack: ncontext name value */ | /* diving code; stack: current context */ |
| }; | |
| name_expr_wdive_write: '.' name_expr_dive_code { | |
| $$=N(POOL); | |
| O($$, OP_WITH_WRITE); /* stack: starting context */ | |
| P($$, $2); /* diving code; stack: context,name */ | |
| }; | }; |
| name_expr_wdive_class: class_prefix name_expr_dive_code { $$=$1; P($$, $2) }; | |
| construct: | |
| construct_square | |
| | 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 ')' { | |
| // stack: context, name | |
| $$=$2; // stack: context, name, value | |
| O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */ | |
| } | |
| ; | |
| construct_curly: '{' maybe_codes '}' { | |
| // stack: context, name | |
| $$=N(POOL); | |
| CCA($$, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */ | |
| }; | |
| any_constructor_code_value: | |
| void_value /* optimized $var[] case */ | |
| | STRING /* optimized $var[STRING] case */ | |
| | constructor_code_value /* $var[something complex] */ | |
| ; | |
| constructor_code_value: constructor_code { | |
| $$=N(POOL); | |
| O($$, OP_CREATE_EWPOOL); /* stack: empty write context */ | |
| P($$, $1); /* some code that writes to that context */ | |
| O($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */ | |
| }; | |
| constructor_code: codes__excluding_sole_str_literal; | |
| codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) }; | |
| /* call */ | /* call */ |
| call: '^' name_expr_dive store_params BREAK { /* ^field.$method{vasya} */ | call: call_value { |
| /* | $$=$1; /* stack: value */ |
| TODO: подсмотреть в $3, и если там в первом элементе первая буква ":" | O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */ |
| то выкинуть её и делать не OP_WITH_READ, а WITH_ROOT | }; |
| TODO: подсмотреть в $3, и если там первым элементом self, | call_value: '^' { |
| то выкинуть его и делать не OP_WITH_READ, а WITH_SELF | PC.object_constructor_allowed=true; |
| TODO: | } |
| если первым в $3 идёт result | call_name { |
| то | PC.object_constructor_allowed=false; |
| выкинуть его | } |
| если там ещё что-то осталось, | store_params EON { /* ^field.$method{vasya} */ |
| то | $$=$3; /* with_xxx,diving code; stack: context,method_junction */ |
| не OP_WITH_READ, а WITH_RESULT | O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */ |
| иначе // ^result(value) | |
| обругать безобразие | YYSTYPE params_code=$5; |
| */ | if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM] |
| $$=N(PC->pool); | if(Value *value=LA2V(params_code)) // it is OP_VALUE + value? |
| A(&$$, OP_WITH_READ); /* stack: starting context */ | if(!value->is_defined()) // value is VVoid? |
| P(&$$,$2); /* diving code; stack: context,method_name */ | params_code=0; // ^zzz[] case. don't append lone empty param. |
| A(&$$,OP_GET_METHOD_FRAME); /* stack: context,method_frame */ | if(params_code) |
| P(&$$,$3); /* filling method_frame.store_params */ | P($$, params_code); // filling method_frame.store_params |
| A(&$$,OP_CALL); /* method_frame=pop; ncontext=pop; call(ncontext,method_frame) */ | O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value |
| }; | }; |
| store_params: store_param | store_params store_param { $$=$1; P(&$$,$2) }; | call_name: name_without_curly_rdive; |
| store_param: store_round_param | store_curly_param; | |
| store_round_param: '(' store_param_parts ')' {$$=$2}; | store_params: store_param | store_params store_param { $$=$1; P($$, $2) }; |
| store_param_parts: store_param_part | store_param_parts ';' store_param_part { $$=$1; P(&$$,$3) }; | store_param: |
| store_param_part: constructor_one_param_value { | store_square_param |
| | store_round_param | |
| | store_curly_param | |
| ; | |
| store_square_param: '[' store_code_param_parts ']' {$$=$2}; | |
| store_round_param: '(' store_expr_param_parts ')' {$$=$2}; | |
| store_curly_param: '{' store_curly_param_parts '}' {$$=$2}; | |
| store_code_param_parts: | |
| store_code_param_part | |
| | store_code_param_parts ';' store_code_param_part { $$=$1; P($$, $3) } | |
| ; | |
| store_expr_param_parts: | |
| store_expr_param_part | |
| | 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: code_param_value { | |
| $$=$1; | $$=$1; |
| A(&$$,OP_STORE_PARAM); | O($$, OP_STORE_PARAM); |
| } | }; |
| store_curly_param: '{' input '}' { | store_expr_param_part: write_expr_value { |
| $$=N(PC->pool); | $$=N(POOL); |
| A(&$$, OP_CODE_ARRAY); | PEA($$, $1); |
| G(&$$,$2); | }; |
| A(&$$,OP_CREATE_JUNCTION); | store_curly_param_part: maybe_codes { |
| A(&$$,OP_STORE_PARAM); | $$=N(POOL); |
| PCA($$, $1); | |
| }; | |
| code_param_value: | |
| void_value /* optimized [;...] case */ | |
| | STRING /* optimized [STRING] case */ | |
| | constructor_code_value /* [something complex] */ | |
| ; | |
| write_expr_value: expr_value { | |
| $$=$1; | |
| O($$, OP_WRITE_EXPR_RESULT); | |
| }; | }; |
| /* name */ | /* name */ |
| name_expr_dive: name_expr_value | name_path name_expr_value { $$=$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($$, $2) }; |
| name_step: name_advance1 '.'; | name_step: name_advance1 '.'; |
| name_advance1: name_expr_value { | name_advance1: name_expr_value { |
| // we know that name_advance1 not called from ^xxx context | |
| // so we'll not check for operator call possibility as we do in name_advance2 | |
| /* stack: context */ | /* stack: context */ |
| $$=$1; /* stack: context,name */ | $$=$1; /* stack: context,name */ |
| A(&$$,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 */ | $$=$1; /* stack: context,name */ |
| A(&$$,OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ | O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ |
| } | } |
| | STR_LITERAL BOGUS | | STRING BOGUS |
| ; | ; |
| name_expr_value: | name_expr_value: |
| STR_LITERAL /* subname_is_const */ | STRING /* subname_is_const */ |
| | name_expr_subvar_value /* $subname_is_var_value */ | | name_expr_subvar_value /* $subname_is_var_value */ |
| | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value[$...] */ | | name_expr_with_subvar_value /* xxx$part_of_subname_is_var_value */ |
| | name_square_code_value /* [codes] */ | |
| ; | ; |
| name_expr_subvar_value: '$' subvar_ref_name_rdive { | name_expr_subvar_value: '$' subvar_ref_name_rdive { |
| $$=$2; | $$=$2; |
| A(&$$,OP_GET_ELEMENT); | O($$, OP_GET_ELEMENT); |
| }; | }; |
| name_expr_with_subvar_value: STR_LITERAL subvar_get_writes { | name_expr_with_subvar_value: STRING subvar_get_writes { |
| $$=N(PC->pool); | $$=N(POOL); |
| A(&$$, OP_CREATE_EWPOOL); | O($$, OP_CREATE_EWPOOL); |
| P(&$$,$1); | P($$, $1); |
| A(&$$,OP_WRITE); | O($$, OP_WRITE_VALUE); |
| P(&$$,$2); | P($$, $2); |
| A(&$$,OP_REDUCE_EWPOOL); | O($$, OP_REDUCE_EWPOOL); |
| }; | }; |
| subvar_ref_name_rdive: STR_LITERAL { | name_square_code_value: '[' codes ']' { |
| /* | $$=N(POOL); |
| TODO: подсмотреть в $1, и если там в первом элементе первая буква ":" | O($$, OP_CREATE_EWPOOL); |
| то выкинуть её и делать не OP_WITH_READ, а WITH_ROOT | P($$, $2); |
| */ | O($$, OP_REDUCE_EWPOOL); |
| $$=N(PC->pool); A(&$$, OP_WITH_READ); | }; |
| P(&$$,$1); | subvar_ref_name_rdive: STRING { |
| $$=N(POOL); | |
| O($$, 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; | $$=$2; |
| A(&$$,OP_GET_ELEMENT__WRITE); | O($$, OP_GET_ELEMENT__WRITE); |
| }; | }; |
| class_prefix: | |
| class_static_prefix | |
| | class_constructor_prefix | |
| ; | |
| class_static_prefix: STRING ':' { | |
| $$=$1; // stack: class name string | |
| O($$, OP_GET_CLASS); | |
| }; | |
| class_constructor_prefix: class_static_prefix ':' { | |
| $$=$1; | |
| if(!PC.object_constructor_allowed) { | |
| strcpy(PC.error, ":: not allowed here"); | |
| YYERROR; | |
| } | |
| O($$, OP_PREPARE_TO_CONSTRUCT_OBJECT); | |
| }; | |
| /* with */ | |
| with: '$' name_without_curly_rdive '{' codes '}' { | /* expr */ |
| $$=$2; | |
| A(&$$,OP_CREATE_RWPOOL); | |
| P(&$$,$4); | |
| A(&$$,OP_REDUCE_RWPOOL); | |
| A(&$$,OP_WRITE); | |
| }; | |
| /* codes_in_brackets */ | expr_value: expr { |
| if(($$=$1)->size()==2) // only one string literal in there? | |
| codes__str__followed_by__excluding_sole_str_literal: | change_string_literal_to_double_literal($$); // make that string literal Double |
| write_str_literal codes__excluding_sole_str_literal { | }; |
| $$=$1; | expr: |
| P(&$$,$2); | STRING |
| } | | get_value |
| ; | | call_value |
| codes__excluding_sole_str_literal: | | '"' string_inside_quotes_value '"' { $$ = $2; } |
| action | | '\'' string_inside_quotes_value '\'' { $$ = $2; } |
| | codes__excluding_sole_str_literal write_str_literal { | | '(' expr ')' { $$ = $2; } |
| $$=$1; | /* stack: operand // stack: @operand */ |
| P(&$$,$2); | | '-' expr %prec NEG { $$=$2; O($$, OP_NEG) } |
| } | | '+' expr %prec NEG { $$=$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($$, OP_BIN_AND) } | |
| | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) } | |
| | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) } | |
| | expr "&&" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_AND) } | |
| | expr "||" expr { $$=$1; PNC($$, $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($$, OP_IS) } | |
| ; | ; |
| write_str_literal: STR_LITERAL { | |
| $$=$1; | string_inside_quotes_value: maybe_codes { |
| A(&$$,OP_WRITE); | $$=N(POOL); |
| O($$, OP_CREATE_SWPOOL); /* stack: empty write context */ | |
| P($$, $1); /* some code that writes to that context */ | |
| O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() */ | |
| }; | }; |
| /* */ | /* basics */ |
| write_string: STRING { | |
| // optimized from OP_STRING+OP_WRITE_VALUE to OP_STRING__WRITE | |
| change_string_literal_to_write_string_literal($$=$1) | |
| }; | |
| empty: /* empty */ { $$=N(PC->pool) }; | void_value: /* empty */ { $$=VL(NEW VVoid(POOL)) }; |
| empty: /* empty */ { $$=N(POOL) }; | |
| %% | %% |
| #endif | |
| /* | /* |
| 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 | $,^: push,=0 |
| 1:( { break=pop | 1:( { break=pop |
| 2:( )=4 | 2:( )=4 |
| 3:{ }=4 | 3:{ }=4 |
| 4:[^({]=pop | 4:[^({]=pop |
| */ | */ |
| int yylex(YYSTYPE *lvalp, void *pc) { | static int yylex(YYSTYPE *lvalp, void *pc) { |
| #define lexical_brackets_nestage PC->brackets_nestages[PC->sp] | #define lexical_brackets_nestage PC.brackets_nestages[PC.ls_sp] |
| #define RC {result=c; goto break2; } | |
| register int c; | register int c; |
| int result; | int result; |
| char *start; | |
| int start_line; | |
| if(PC->pending_state) { | if(PC.pending_state) { |
| result=PC->pending_state; | result=PC.pending_state; |
| PC->pending_state=0; | PC.pending_state=0; |
| return result; | return result; |
| } | } |
| start=PC->source; | const char *begin=PC.source; |
| start_line=PC->line; | const char *end; |
| while(1) { | int begin_line=PC.line; |
| c=*PC->source++; | int skip_analized=0; |
| while(true) { | |
| if(c=='\n') | c=*(end=(PC.source++)); |
| PC->line++; | // fprintf(stderr, "\nchar: %c %02X; nestage: %d, sp=%d", c, c, lexical_brackets_nestage, PC.sp); |
| /* escaping: ^^ ^$ ^; ^) ^} ^( ^{ */ | if(c=='\n') { |
| if(c=='^') { | PC.line++; |
| char pending_c=*PC->source; | PC.col=0; |
| } else | |
| if(pending_c == '^' || pending_c == '$' || pending_c == ';' || | PC.col++; |
| pending_c == '(' || pending_c == ')' || | |
| pending_c == '{' || pending_c == '}') { | if(c=='@' && PC.col==0+1) { |
| /* append piece till ^ */ | if(PC.ls==LS_DEF_SPECIAL_BODY) { |
| CSTRING_APPEND(PC->string, start, PC->source-start -1/*^*/, PC->file, start_line); | // @SPECIAL |
| /* reset piece 'start' position & line */ | // ... |
| start=PC->source+1/*^*/; | // @<here = |
| start_line=PC->line; | pop_LS(PC); // exiting from LS_DEF_SPECIAL_BODY state |
| /* skip over ^ and _ */ | } // continuing checks |
| PC->source+=2; | if(PC.ls==LS_USER) { |
| /* skip analysis = forced literal */ | push_LS(PC, LS_DEF_NAME); |
| continue; | RC; |
| } else // @ in first column inside some code [when could that be?] | |
| result=BAD_METHOD_DECL_START; | |
| goto break2; | |
| } else if(c=='^') | |
| switch(PC.ls) { | |
| case LS_EXPRESSION_VAR_NAME_WITH_COLON: | |
| case LS_EXPRESSION_VAR_NAME_WITHOUT_COLON: | |
| case LS_VAR_NAME_SIMPLE_WITH_COLON: | |
| case LS_VAR_NAME_SIMPLE_WITHOUT_COLON: | |
| case LS_VAR_NAME_CURLY: | |
| case LS_METHOD_NAME: | |
| case LS_COMMENT: | |
| case LS_DEF_COMMENT: | |
| // no literals in names, please | |
| break; | |
| default: | |
| switch(*PC.source) { | |
| // ^escaping some punctuators | |
| case '^': case '$': case ';': | |
| case '(': case ')': | |
| case '[': case ']': | |
| case '{': case '}': | |
| case '"': case ':': | |
| if(end!=begin) { | |
| // append piece till ^ | |
| PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line); | |
| } | |
| // reset piece 'begin' position & line | |
| end=begin=PC.source; // ^ | |
| begin_line=PC.line; | |
| if(PC.ls==LS_METHOD_AFTER) { | |
| pop_LS(PC); | |
| result=EON; | |
| skip_analized=-1; // return to ^ afterwards to assure it's literality | |
| goto break2; | |
| } else { | |
| // skip over _ after ^ | |
| PC.source++; PC.col++; | |
| // skip analysis = forced literal | |
| continue; | |
| } | |
| // converting ^#HH into char(hex(HH)) | |
| case '#': | |
| if(end!=begin) { | |
| // append piece till ^ | |
| PC.string->APPEND_CLEAN(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_CLEAN(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; | |
| } | } |
| break; | |
| } | } |
| switch(PC->ls) { | // #comment start skipping |
| if(c=='#' && PC.col==1) { | |
| if(end!=begin) { | |
| // append piece till # | |
| PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line); | |
| } | |
| // fall into COMMENT lexical state [wait for \n] | |
| push_LS(PC, LS_COMMENT); | |
| continue; | |
| } | |
| switch(PC.ls) { | |
| // USER'S = NOT OURS | |
| case LS_USER: | case LS_USER: |
| if(c=='$') { | case LS_NAME_SQUARE_PART: // name.[here].xxx |
| push_LS(PC); PC->ls=LS_VAR_NAME_SIMPLE; | if(PC.trim_bof) |
| result=c; | switch(c) { |
| goto break2; | case '\n': case ' ': case '\t': |
| } | begin=PC.source; |
| if(c=='^') { | begin_line=PC.line; |
| push_LS(PC); PC->ls=LS_METHOD_NAME; | continue; // skip it |
| result=c; | default: |
| goto break2; | PC.trim_bof=false; |
| } | |
| switch(c) { | |
| case '$': | |
| push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); | |
| RC; | |
| case '^': | |
| push_LS(PC, LS_METHOD_NAME); | |
| RC; | |
| case ']': | |
| if(PC.ls==LS_NAME_SQUARE_PART) | |
| if(--lexical_brackets_nestage==0) {// $name.[co<]?>de<]?> | |
| 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; |
| // #COMMENT | |
| case LS_COMMENT: | |
| if(c=='\n') { | |
| // skip comment | |
| begin=PC.source; | |
| begin_line=PC.line; | |
| /* VAR */ | |
| case LS_VAR_NAME_SIMPLE: | |
| if(c==0 || | |
| c==' '|| c=='\t' || c=='\n' || | |
| c==')' || c=='}') { | |
| pop_LS(PC); | pop_LS(PC); |
| PC->source--; | continue; |
| result=BREAK; | |
| goto break2; | |
| } | |
| if(PC->source==start && c=='{') { /* ${name}, no need of BREAK, switching LS */ | |
| PC->ls=LS_VAR_NAME_CURLY; | |
| result=c; | |
| goto break2; | |
| } | } |
| if(c=='(') { | break; |
| PC->ls=LS_VAR_ROUND; | |
| lexical_brackets_nestage=1; | // STRING IN EXPRESSION |
| result=c; | case LS_EXPRESSION_STRING_QUOTED: |
| goto break2; | case LS_EXPRESSION_STRING_APOSTROFED: |
| switch(c) { | |
| case '"': | |
| case '\'': | |
| if( | |
| PC.ls == LS_EXPRESSION_STRING_QUOTED && c=='"' || | |
| PC.ls == LS_EXPRESSION_STRING_APOSTROFED && c=='\'') { | |
| pop_LS(PC); //"abc". | 'abc'. | |
| RC; | |
| } | |
| break; | |
| case '$': | |
| push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); | |
| RC; | |
| case '^': | |
| push_LS(PC, LS_METHOD_NAME); | |
| RC; | |
| } | } |
| if(c=='{') { | break; |
| PC->ls=LS_VAR_CURLY; | |
| lexical_brackets_nestage=1; | // METHOD DEFINITION |
| result=c; | case LS_DEF_NAME: |
| goto break2; | switch(c) { |
| case '[': | |
| PC.ls=LS_DEF_PARAMS; | |
| RC; | |
| case '\n': | |
| PC.ls=LS_DEF_SPECIAL_BODY; | |
| RC; | |
| } | } |
| 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_DEF_SPECIAL_BODY: | |
| if(c=='\n') | |
| RC; | |
| break; | |
| // (EXPRESSION) | |
| case LS_VAR_ROUND: | case LS_VAR_ROUND: |
| if(c=='$') { | case LS_METHOD_ROUND: |
| push_LS(PC); PC->ls=LS_VAR_NAME_SIMPLE; | switch(c) { |
| result=c; | case ')': |
| if(--lexical_brackets_nestage==0) | |
| if(PC.ls==LS_METHOD_ROUND) // method round param ended | |
| PC.ls=LS_METHOD_AFTER; // look for method end | |
| else // PC.ls==LS_VAR_ROUND // variable constructor ended | |
| pop_LS(PC); // return to normal life | |
| RC; | |
| case '$': | |
| push_LS(PC, LS_EXPRESSION_VAR_NAME_WITH_COLON); | |
| RC; | |
| case '^': | |
| push_LS(PC, LS_METHOD_NAME); | |
| RC; | |
| case '(': | |
| lexical_brackets_nestage++; | |
| RC; | |
| case '-': | |
| switch(*PC.source) { | |
| case 'f': // -f | |
| skip_analized=1; | |
| result=FEXISTS; | |
| goto break2; | |
| case 'd': // -d | |
| skip_analized=1; | |
| result=DEXISTS; | |
| goto break2; | |
| default: | |
| result=c; | |
| goto break2; | |
| } | |
| goto break2; | goto break2; |
| } | case '+': case '*': case '/': case '%': case '\\': |
| if(c=='^') { | case '~': |
| push_LS(PC); PC->ls=LS_METHOD_NAME; | case ';': |
| result=c; | RC; |
| case '&': case '|': case '#': | |
| if(*PC.source==c) { // && || | |
| result=c=='#'?LXOR:c=='&'?LAND:LOR; | |
| skip_analized=1; | |
| } else | |
| result=c; | |
| goto break2; | goto break2; |
| case '<': case '>': case '=': case '!': | |
| if(*PC.source=='=') { // <= >= == != | |
| skip_analized=1; | |
| switch(c) { | |
| case '<': result=NLE; break; | |
| case '>': result=NGE; break; | |
| case '=': result=NEQ; break; | |
| case '!': result=NNE; break; | |
| } | |
| } else | |
| result=c; | |
| goto break2; | |
| case '"': | |
| push_LS(PC, LS_EXPRESSION_STRING_QUOTED); | |
| RC; | |
| case '\'': | |
| push_LS(PC, LS_EXPRESSION_STRING_APOSTROFED); | |
| RC; | |
| case 'l': case 'g': case 'e': case 'n': | |
| if(end==begin) // right after whitespace | |
| if(isspace(PC.source[1])) { | |
| switch(*PC.source) { | |
| // case '?': // ok [and bad cases, yacc would bark at them] | |
| case 't': // lt gt [et nt] | |
| result=c=='l'?SLT:c=='g'?SGT:BAD_STRING_COMPARISON_OPERATOR; | |
| skip_analized=1; | |
| goto break2; | |
| 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; | |
| case ' ': case '\t': case '\n': | |
| if(end!=begin) { // there were a string after previous operator? | |
| result=0; // return that string | |
| goto break2; | |
| } | |
| // that's a leading|traling space or after-operator-space | |
| // ignoring it | |
| // reset piece 'begin' position & line | |
| begin=PC.source; // after whitespace char | |
| begin_line=PC.line; | |
| continue; | |
| } | } |
| if(c==')') { | break; |
| if(--lexical_brackets_nestage==0) { | |
| // VARIABLE GET/PUT/WITH | |
| case LS_VAR_NAME_SIMPLE_WITH_COLON: | |
| case LS_VAR_NAME_SIMPLE_WITHOUT_COLON: | |
| case LS_EXPRESSION_VAR_NAME_WITH_COLON: | |
| 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 binary operators | |
| switch(c) { | |
| 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 */) { | if( |
| result=c; | PC.ls==LS_VAR_NAME_SIMPLE_WITHOUT_COLON || |
| PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) { | |
| // name already has ':', stop before next | |
| switch(c) { | |
| case ':': | |
| pop_LS(PC); | |
| PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; } | |
| result=EON; | |
| goto break2; | |
| } | |
| } | |
| switch(c) { | |
| case 0: | |
| case ' ': case '\t': case '\n': | |
| 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 '?': | |
| // before call | |
| case '^': | |
| pop_LS(PC); | |
| PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; } | |
| result=EON; | |
| goto break2; | goto break2; |
| case '[': | |
| // $name.<[>code] | |
| if(PC.col>1/*not first column*/ && ( | |
| end[-1]=='$'/*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; | |
| RC; | |
| case '{': | |
| if(begin==end) { // ${name}, no need of EON, switching LS | |
| PC.ls=LS_VAR_NAME_CURLY; | |
| } else { | |
| PC.ls=LS_VAR_CURLY; | |
| lexical_brackets_nestage=1; | |
| } | |
| RC; | |
| case '(': | |
| PC.ls=LS_VAR_ROUND; | |
| lexical_brackets_nestage=1; | |
| RC; | |
| case '.': // name part delim | |
| case '$': // name part subvar | |
| 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; | |
| } | } |
| 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 '[': |
| goto break2; | // ${name.<[>code]} |
| push_LS(PC, LS_NAME_SQUARE_PART); | |
| lexical_brackets_nestage=1; | |
| RC; | |
| case '}': // ${name} finished, restoring LS | |
| pop_LS(PC); | |
| RC; | |
| case '.': // name part delim | |
| case '$': // 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 '$': | |
| push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); | |
| RC; | |
| case '^': | |
| push_LS(PC, LS_METHOD_NAME); | |
| RC; | |
| case ']': | |
| if(--lexical_brackets_nestage==0) { | |
| pop_LS(PC); | |
| RC; | |
| } | |
| break; | |
| case ';': // operator_or_fmt;value delim | |
| RC; | |
| case '[': | |
| lexical_brackets_nestage++; | |
| break; | |
| } | } |
| if(c=='}') | break; |
| case LS_VAR_CURLY: | |
| switch(c) { | |
| case '$': | |
| push_LS(PC, LS_VAR_NAME_SIMPLE_WITH_COLON); | |
| 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 '[': |
| // ^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; |
| result=c; | RC; |
| goto break2; | case '{': |
| } | PC.ls=LS_METHOD_CURLY; |
| if(c=='{') { | |
| PC->ls=LS_METHOD_CURLY; | |
| lexical_brackets_nestage=1; | lexical_brackets_nestage=1; |
| result=c; | RC; |
| goto break2; | case '(': |
| } | PC.ls=LS_METHOD_ROUND; |
| if(c=='.'/* name part delim */ || c=='$'/* name part subvar */) { | lexical_brackets_nestage=1; |
| result=c; | RC; |
| goto break2; | case '.': // name part delim |
| case '$': // name part subvar | |
| case ':': // ':name' or 'class:name' | |
| case '^': // ^abc^xxx wrong. bailing out | |
| case ']': case '}': case ')': // ^abc]}) wrong. bailing out | |
| RC; | |
| } | } |
| 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_WITH_COLON); |
| } | 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_WITH_COLON); |
| goto break2; | RC; |
| } | case '^': |
| if(c=='^') { | push_LS(PC, LS_METHOD_NAME); |
| push_LS(PC); PC->ls=LS_METHOD_NAME; | RC; |
| result=c; | case ';': // param delim |
| goto break2; | RC; |
| } | case '}': |
| 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; | } |
| if(c=='(') {/* ]( }( )( */ | |
| PC.ls=LS_METHOD_ROUND; | |
| lexical_brackets_nestage=1; | |
| RC; | |
| } | } |
| pop_LS(PC); | pop_LS(PC); |
| PC->source--; | PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; } |
| result=BREAK; | result=EON; |
| goto break2; | goto break2; |
| } | } |
| if (c == 0) { | if(c==0) { |
| result=-1; | result=-1; |
| break; | break; |
| } | } |
| } | } |
| break2: | break2: |
| if(PC->source-1<=start) | 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; | end--; |
| /* append last piece */ | if(end!=begin && end[-1]=='\n') // allow one empty line before LS_DEF_NAME |
| CSTRING_APPEND(PC->string, start, PC->source-start-1, PC->file, start_line); | end--; |
| /* create STR_LITERAL value: array of OP_STRING+string */ | } |
| *lvalp=L(PC->string); | if(end!=begin && PC.ls!=LS_COMMENT) { // last piece still alive and not comment? |
| /* new pieces storage */ | // append it |
| PC->string=string_create(PC->pool); | PC.string->APPEND_CLEAN(begin, end-begin, PC.file, begin_line/*, start_col*/); |
| /* go */ | } |
| return STR_LITERAL; | } |
| if(PC.string->size()) { // something accumulated? | |
| // create STRING value: array of OP_VALUE+vstring | |
| *lvalp=VL(NEW VString(*PC.string)); | |
| // new pieces storage | |
| PC.string=NEW String(POOL); | |
| // make current result be pending for next call, return STRING for now | |
| PC.pending_state=result; result=STRING; | |
| } | |
| if(skip_analized) { | |
| PC.source+=skip_analized; PC.col+=skip_analized; | |
| } | } |
| return result; | |
| } | } |
| int yyerror (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); |
| printf ("[%s]\n", s); | |
| return 1; | return 1; |
| } | } |
| static void | |
| yyprint ( | |
| FILE *file, | |
| int type, | |
| YYSTYPE value) | |
| { | |
| if (type == STR_LITERAL) | |
| fprintf (file, " \"%s\"", string_cstr(LS(value))); | |
| } | |
| static void yyprint(FILE *file, int type, YYSTYPE value) { | |
| if(type==STRING) | |
| fprintf(file, " \"%s\"", LA2S(value)->cstr()); | |
| } |