Компилятор для подмножества языка Haskell

However, the list is correct for canonical LR with one exception: it will still contain any token that will not be accepted due to an error action in a later state. */ if (yytoken != YYEMPTY) { int yyn = yypact[*yyssp]; yyarg[yycount++] = yytname[yytoken]; if (!yypact_value_is_default (yyn)) { /* Start YYX at -YYN if negative to avoid negative indexes in YYCHECK. In other words, skip the first -YYN actions for this state because they are default actions. */ int yyxbegin = yyn < 0 ? -yyn : 0; /* Stay within bounds of both yycheck and yytname. */ int yychecklim = YYLAST - yyn + 1; int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; int yyx; for (yyx = yyxbegin; yyx < yyxend; ++yyx) if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR && !yytable_value_is_error (yytable[yyx + yyn])) { if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) { yycount = 1; yysize = yysize0; break; } yyarg[yycount++] = yytname[yyx]; { YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULL, yytname[yyx]); if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) return 2; yysize = yysize1; } } } } switch (yycount) {# define YYCASE_(N, S) \ case N: \ yyformat = S; \ break YYCASE_(0, YY_("syntax error")); YYCASE_(1, YY_("syntax error, unexpected %s")); YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s")); YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s")); YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s")); YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));# undef YYCASE_ } { YYSIZE_T yysize1 = yysize + yystrlen (yyformat); if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) return 2; yysize = yysize1; } if (*yymsg_alloc < yysize) { *yymsg_alloc = 2 * yysize; if (! (yysize <= *yymsg_alloc && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM)) *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM; return 1; } /* Avoid sprintf, as that infringes on the user's name space. Don't have undefined behavior even if the translation produced a string with the wrong number of "%s"s. */ { char *yyp = *yymsg; int yyi = 0; while ((*yyp = *yyformat) != '\0') if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount) { yyp += yytnamerr (yyp, yyarg[yyi++]); yyformat += 2; } else { yyp++; yyformat++; } } return 0;}#endif /* YYERROR_VERBOSE *//*-----------------------------------------------.| Release the memory associated to this symbol. |`-----------------------------------------------*//*ARGSUSED*/#if (defined __STDC__ || defined __C99__FUNC__ \ || defined __cplusplus || defined _MSC_VER)static voidyydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, SExpression **expression, yyscan_t scanner)#elsestatic voidyydestruct (yymsg, yytype, yyvaluep, expression, scanner) const char *yymsg; int yytype; YYSTYPE *yyvaluep; SExpression **expression; yyscan_t scanner;#endif{ YYUSE (yyvaluep); YYUSE (expression); YYUSE (scanner); if (!yymsg) yymsg = "Deleting"; YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp); switch (yytype) { default: break; }}/*----------.| yyparse. |`----------*/#ifdef YYPARSE_PARAM#if (defined __STDC__ || defined __C99__FUNC__ \ || defined __cplusplus || defined _MSC_VER)intyyparse (void *YYPARSE_PARAM)#elseintyyparse (YYPARSE_PARAM) void *YYPARSE_PARAM;#endif#else /* ! YYPARSE_PARAM */#if (defined __STDC__ || defined __C99__FUNC__ \ || defined __cplusplus || defined _MSC_VER)intyyparse (SExpression **expression, yyscan_t scanner)#elseintyyparse (expression, scanner) SExpression **expression; yyscan_t scanner;#endif#endif{/* The lookahead symbol. */int yychar;#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__/* Suppress an incorrect diagnostic about yylval being uninitialized. */# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \ _Pragma ("GCC diagnostic push") \ _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\ _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")# define YY_IGNORE_MAYBE_UNINITIALIZED_END \ _Pragma ("GCC diagnostic pop")#else/* Default value used for initialization, for pacifying older GCCs or non-GCC compilers. */static YYSTYPE yyval_default;# define YY_INITIAL_VALUE(Value) = Value#endif#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN# define YY_IGNORE_MAYBE_UNINITIALIZED_END#endif#ifndef YY_INITIAL_VALUE# define YY_INITIAL_VALUE(Value) /* Nothing. */#endif/* The semantic value of the lookahead symbol. */YYSTYPE yylval YY_INITIAL_VALUE(yyval_default); /* Number of syntax errors so far. */ int yynerrs; int yystate; /* Number of tokens to shift before error messages enabled. */ int yyerrstatus; /* The stacks and their tools: `yyss': related to states. `yyvs': related to semantic values. Refer to the stacks through separate pointers, to allow yyoverflow to reallocate them elsewhere. */ /* The state stack. */ yytype_int16 yyssa[YYINITDEPTH]; yytype_int16 *yyss; yytype_int16 *yyssp; /* The semantic value stack. */ YYSTYPE yyvsa[YYINITDEPTH]; YYSTYPE *yyvs; YYSTYPE *yyvsp; YYSIZE_T yystacksize; int yyn; int yyresult; /* Lookahead token as an internal (translated) token number. */ int yytoken = 0; /* The variables used to return semantic value and location from the action routines. */ YYSTYPE yyval;#if YYERROR_VERBOSE /* Buffer for error messages, and its allocated size. */ char yymsgbuf[128]; char *yymsg = yymsgbuf; YYSIZE_T yymsg_alloc = sizeof yymsgbuf;#endif#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)) /* The number of symbols on the RHS of the reduced rule. Keep to zero when no symbol should be popped. */ int yylen = 0; yyssp = yyss = yyssa; yyvsp = yyvs = yyvsa; yystacksize = YYINITDEPTH; YYDPRINTF ((stderr, "Starting parse\n")); yystate = 0; yyerrstatus = 0; yynerrs = 0; yychar = YYEMPTY; /* Cause a token to be read. */ goto yysetstate;/*------------------------------------------------------------.| yynewstate -- Push a new state, which is found in yystate. |`------------------------------------------------------------*/ yynewstate: /* In all cases, when you get here, the value and location stacks have just been pushed. So pushing a state here evens the stacks. */ yyssp++; yysetstate: *yyssp = yystate; if (yyss + yystacksize - 1 <= yyssp) { /* Get the current used size of the three stacks, in elements. */ YYSIZE_T yysize = yyssp - yyss + 1;#ifdef yyoverflow {/* Give user a chance to reallocate the stack. Use copies of these so that the &'s don't force the real ones into memory. */YYSTYPE *yyvs1 = yyvs;yytype_int16 *yyss1 = yyss;/* Each stack pointer address is followed by the size of the data in use in that stack, in bytes. This used to be a conditional around just the two extra args, but that might be undefined if yyoverflow is a macro. */yyoverflow (YY_("memory exhausted"), &yyss1, yysize * sizeof (*yyssp), &yyvs1, yysize * sizeof (*yyvsp), &yystacksize);yyss = yyss1;yyvs = yyvs1; }#else /* no yyoverflow */# ifndef YYSTACK_RELOCATE goto yyexhaustedlab;# else /* Extend the stack our own way. */ if (YYMAXDEPTH <= yystacksize)goto yyexhaustedlab; yystacksize *= 2; if (YYMAXDEPTH < yystacksize)yystacksize = YYMAXDEPTH; {yytype_int16 *yyss1 = yyss;union yyalloc *yyptr = (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));if (! yyptr) goto yyexhaustedlab;YYSTACK_RELOCATE (yyss_alloc, yyss);YYSTACK_RELOCATE (yyvs_alloc, yyvs);# undef YYSTACK_RELOCATEif (yyss1 != yyssa) YYSTACK_FREE (yyss1); }# endif#endif /* no yyoverflow */ yyssp = yyss + yysize - 1; yyvsp = yyvs + yysize - 1; YYDPRINTF ((stderr, "Stack size increased to %lu\n", (unsigned long int) yystacksize)); if (yyss + yystacksize - 1 <= yyssp)YYABORT; } YYDPRINTF ((stderr, "Entering state %d\n", yystate)); if (yystate == YYFINAL) YYACCEPT; goto yybackup;/*-----------.| yybackup. |`-----------*/yybackup: /* Do appropriate processing given the current state. Read a lookahead token if we need one and don't already have one. */ /* First try to decide what to do without reference to lookahead token. */ yyn = yypact[yystate]; if (yypact_value_is_default (yyn)) goto yydefault; /* Not known => get a lookahead token if don't already have one. */ /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ if (yychar == YYEMPTY) { YYDPRINTF ((stderr, "Reading a token: ")); yychar = YYLEX; } if (yychar <= YYEOF) { yychar = yytoken = YYEOF; YYDPRINTF ((stderr, "Now at end of input.\n")); } else { yytoken = YYTRANSLATE (yychar); YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc); } /* If the proper action on seeing token YYTOKEN is to reduce or to detect an error, take that action. */ yyn += yytoken; if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) goto yydefault; yyn = yytable[yyn]; if (yyn <= 0) { if (yytable_value_is_error (yyn)) goto yyerrlab; yyn = -yyn; goto yyreduce; } /* Count tokens shifted since error; after three, turn off error status. */ if (yyerrstatus) yyerrstatus--; /* Shift the lookahead token. */ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc); /* Discard the shifted token. */ yychar = YYEMPTY; yystate = yyn; YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN *++yyvsp = yylval; YY_IGNORE_MAYBE_UNINITIALIZED_END goto yynewstate;/*-----------------------------------------------------------.| yydefault -- do the default action for the current state. |`-----------------------------------------------------------*/yydefault: yyn = yydefact[yystate]; if (yyn == 0) goto yyerrlab; goto yyreduce;/*-----------------------------.| yyreduce -- Do a reduction. |`-----------------------------*/yyreduce: /* yyn is the number of a rule to reduce with. */ yylen = yyr2[yyn]; /* If YYLEN is nonzero, implement the default value of the action: `$$ = $1'. Otherwise, the following line sets YYVAL to garbage. This behavior is undocumented and Bison users should not rely upon it. Assigning to YYVAL unconditionally makes the parser a bit smaller, and it avoids a GCC warning that YYVAL may be used uninitialized. */ yyval = yyvsp[1-yylen]; YY_REDUCE_PRINT (yyn); switch (yyn) { case 2:/* Line 1792 of yacc.c */#line 56 "Parser.y"{ *expression = (yyvsp[(1) - (1)].expression); } break; case 3:/* Line 1792 of yacc.c */#line 60 "Parser.y"{ (yyval.expression) = createOperation( ePLUS, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression) ); } break; case 4:/* Line 1792 of yacc.c */#line 61 "Parser.y"{ (yyval.expression) = createOperation( eMULTIPLY, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression) ); } break; case 5:/* Line 1792 of yacc.c */#line 62 "Parser.y"{ (yyval.expression) = createOperation( eMINUS, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression) ); } break; case 6:/* Line 1792 of yacc.c */#line 63 "Parser.y"{ (yyval.expression) = createOperation( eDIV, (yyvsp[(1) - (3)].expression), (yyvsp[(3) - (3)].expression) ); } break; case 7:/* Line 1792 of yacc.c */#line 64 "Parser.y"{ (yyval.expression) = (yyvsp[(2) - (3)].expression); } break; case 8:/* Line 1792 of yacc.c */#line 65 "Parser.y"{ (yyval.expression) = createNumber((yyvsp[(1) - (1)].value)); } break; case 9:/* Line 1792 of yacc.c */#line 66 "Parser.y"{ (yyval.expression) = createWord((yyvsp[(1) - (1)].value)); } break;/* Line 1792 of yacc.c */#line 1445 "Parser.c" default: break; } /* User semantic actions sometimes alter yychar, and that requires that yytoken be updated with the new translation. We take the approach of translating immediately before every use of yytoken. One alternative is translating here after every semantic action, but that translation would be missed if the semantic action invokes YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an incorrect destructor might then be invoked immediately. In the case of YYERROR or YYBACKUP, subsequent parser actions might lead to an incorrect destructor call or verbose syntax error message before the lookahead is translated. */ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc); YYPOPSTACK (yylen); yylen = 0; YY_STACK_PRINT (yyss, yyssp); *++yyvsp = yyval; /* Now `shift' the result of the reduction. Determine what state that goes to, based on the state we popped back to and the rule number reduced by. */ yyn = yyr1[yyn]; yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) yystate = yytable[yystate]; else yystate = yydefgoto[yyn - YYNTOKENS]; goto yynewstate;/*------------------------------------.| yyerrlab -- here on detecting error |`------------------------------------*/yyerrlab: /* Make sure we have latest lookahead translation. See comments at user semantic actions for why this is necessary. */ yytoken = yychar == YYEMPTY ?YYEMPTY : YYTRANSLATE (yychar); /* If not already recovering from an error, report this error. */ if (!yyerrstatus) { ++yynerrs;#if ! YYERROR_VERBOSE yyerror (expression, scanner, YY_("syntax error"));#else# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \ yyssp, yytoken) { char const *yymsgp = YY_("syntax error"); int yysyntax_error_status; yysyntax_error_status = YYSYNTAX_ERROR; if (yysyntax_error_status == 0) yymsgp = yymsg; else if (yysyntax_error_status == 1) { if (yymsg != yymsgbuf) YYSTACK_FREE (yymsg); yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc); if (!yymsg) { yymsg = yymsgbuf; yymsg_alloc = sizeof yymsgbuf; yysyntax_error_status = 2; } else { yysyntax_error_status = YYSYNTAX_ERROR; yymsgp = yymsg; } } yyerror (expression, scanner, yymsgp); if (yysyntax_error_status == 2) goto yyexhaustedlab; }# undef YYSYNTAX_ERROR#endif } if (yyerrstatus == 3) { /* If just tried and failed to reuse lookahead token after an error, discard it. */ if (yychar <= YYEOF){ /* Return failure if at end of input. */ if (yychar == YYEOF) YYABORT;} else{ yydestruct ("Error: discarding", yytoken, &yylval, expression, scanner); yychar = YYEMPTY;} } /* Else will try to reuse lookahead token after shifting the error token. */ goto yyerrlab1;/*---------------------------------------------------.| yyerrorlab -- error raised explicitly by YYERROR. |`---------------------------------------------------*/yyerrorlab: /* Pacify compilers like GCC when the user code never invokes YYERROR and the label yyerrorlab therefore never appears in user code. */ if (/*CONSTCOND*/ 0) goto yyerrorlab; /* Do not reclaim the symbols of the rule which action triggered this YYERROR. */ YYPOPSTACK (yylen); yylen = 0; YY_STACK_PRINT (yyss, yyssp); yystate = *yyssp; goto yyerrlab1;/*-------------------------------------------------------------.| yyerrlab1 -- common code for both syntax error and YYERROR. |`-------------------------------------------------------------*/yyerrlab1: yyerrstatus = 3;/* Each real token shifted decrements this. */ for (;;) { yyn = yypact[yystate]; if (!yypact_value_is_default (yyn)){ yyn += YYTERROR; if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) { yyn = yytable[yyn]; if (0 < yyn)break; }} /* Pop the current state because it cannot handle the error token. */ if (yyssp == yyss)YYABORT; yydestruct ("Error: popping", yystos[yystate], yyvsp, expression, scanner); YYPOPSTACK (1); yystate = *yyssp; YY_STACK_PRINT (yyss, yyssp); } YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN *++yyvsp = yylval; YY_IGNORE_MAYBE_UNINITIALIZED_END /* Shift the error token. */ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp); yystate = yyn; goto yynewstate;/*-------------------------------------.| yyacceptlab -- YYACCEPT comes here. |`-------------------------------------*/yyacceptlab: yyresult = 0; goto yyreturn;/*-----------------------------------.| yyabortlab -- YYABORT comes here. |`-----------------------------------*/yyabortlab: yyresult = 1; goto yyreturn;#if !defined yyoverflow || YYERROR_VERBOSE/*-------------------------------------------------.| yyexhaustedlab -- memory exhaustion comes here. |`-------------------------------------------------*/yyexhaustedlab: yyerror (expression, scanner, YY_("memory exhausted")); yyresult = 2; /* Fall through. */#endifyyreturn: if (yychar != YYEMPTY) { /* Make sure we have latest lookahead translation. See comments at user semantic actions for why this is necessary. */ yytoken = YYTRANSLATE (yychar); yydestruct ("Cleanup: discarding lookahead", yytoken, &yylval, expression, scanner); } /* Do not reclaim the symbols of the rule which action triggered this YYABORT or YYACCEPT. */ YYPOPSTACK (yylen); YY_STACK_PRINT (yyss, yyssp); while (yyssp != yyss) { yydestruct ("Cleanup: popping", yystos[*yyssp], yyvsp, expression, scanner); YYPOPSTACK (1); }#ifndef yyoverflow if (yyss != yyssa) YYSTACK_FREE (yyss);#endif#if YYERROR_VERBOSE if (yymsg != yymsgbuf) YYSTACK_FREE (yymsg);#endif /* Make sure YYID is used. */ return YYID (yyresult);}/* Line 2055 of yacc.c */#line 69 "Parser.y"Main.h#ifndef MainH#define MainH//---------------------------------------------------------------------------#include #include #include #include #include #include "Expression.h"#include "io.h"#include //---------------------------------------------------------------------------class TForm1 : public TForm{__published:// IDE-managed ComponentsTMemo *Memo1;TTreeView *TreeView1;TButton *Button1;TLabel *Label1;TLabel *Label2;void __fastcall Button1Click(TObject *Sender);private:// User declarationsvoid DrawTree(TTreeView *tv, SExpression * Root, TTreeNode *Parent);public:// User declarations__fastcall TForm1(TComponent* Owner);};//Разбор строки функционалом Yacc SExpression *getAST(char *expr);//---------------------------------------------------------------------------extern PACKAGE TForm1 *Form1;//---------------------------------------------------------------------------#endifMain.cpp//---------------------------------------------------------------------------#include #pragma hdrstop#include "Main.h"//---------------------------------------------------------------------------#pragma package(smart_init)#pragma resource "*.dfm"TForm1 *Form1;//int yylex_init(void * *);//---------------------------------------------------------------------------__fastcall TForm1::TForm1(TComponent* Owner): TForm(Owner){} void TForm1::DrawTree(TTreeView *tv, SExpression * Root, TTreeNode *Parent){ TTreeNodes *tns=tv->Items; TTreeNode *tn; AnsiString s; if(Root==NULL){return;}if(Parent==NULL){tn=tns->AddObject(NULL,Root->value,NULL);} else {tn=tns->AddChild(Parent,AnsiString(Root->value));}DrawTree(tv, Root->left,tn);DrawTree(tv, Root->right,tn);for(int i=0;iItems->Count; i++){tn=tv->Items->Item[i];tn->Expand(true);} }SExpression *ReadFromFile(FILE* f){SExpression *s=(SExpression *)malloc(sizeof(SExpression));int max_char=256;//s->left=NULL;//s->right=NULL;s->value=new char[max_char]; //s->value=NULL;fread(&s->type,sizeof(EOperationType),1,f);fread(s->value,max_char*sizeof(char),1,f);if(strlen(s->value)==0)return NULL;s->right=ReadFromFile(f);s->left=ReadFromFile(f);return s; { //SExpression *s=(SExpression *)malloc(sizeof(SExpression));// fread(ex, sizeof(ex), 1, f); // fread(&s, sizeof(s), 1, f); // fwrite((char*)&ex->value, 256, 1, f); }// if(ex->left!=NULL)// ReadFromFile(ex->left,f);//if(ex->right!=NULL)//ReadFromFile(ex->right,f);}void __fastcall TForm1::Button1Click(TObject *Sender){//Очистка дереваTreeView1->Items->Clear();//Имя процесса-анализатораUnicodeStringcmd_str="Project1.exe ";//Цикл по строкам из исходного кодаfor(int i=0;iLines->Count;i++){wchar_t *Line=Memo1->Lines->Strings[i].t_str();//Строка с именем процессаcmd_str= cmd_str+Line;//Запускаем процесс сборки анализатора//Структуры процессаPROCESS_INFORMATION pi;STARTUPINFO si;//Выделяем памятьZeroMemory(&si, sizeof(STARTUPINFO));si.cb=sizeof(STARTUPINFO);char *A= (char *)cmd_str.t_str();//Строка путиLPTSTR szCmdline = (LPTSTR)A;//Запуск Project1.exe с параметрами строки разбораCreateProcess(NULL, szCmdline, NULL, NULL, 0, 0, NULL, NULL, &si, &pi);WaitForSingleObject(pi.hProcess,INFINITE);//Чтение файла с синтаксическим деревом, который отдает процессFILE *f = fopen("file.bin", "rb");//Создание дереваSExpression *e=(SExpression *)malloc(sizeof(SExpression));//Чтение из файлаe= ReadFromFile(f);//Рисование дерева на компонентеDrawTree(TreeView1,e,NULL);fclose(f);//Удаление файлаremove("file.bin");}}