public Sentencias(ref Stack <StackElement> pila) : base(35) { pila.Pop(); sents = pila.Pop() as Sentencias; pila.Pop(); sent = pila.Pop() as Sentencia; }
public Bloque(ref Stack <StackElement> pila) : base(38) { pila.Pop(); pila.Pop(); //quita } pila.Pop(); sents = pila.Pop() as Sentencias; //quita SentenciaBloque pila.Pop(); pila.Pop(); //quita { }
public Sentencias() : base(35) { sent = null; sents = null; containsChildren = false; }
public string Analiza(string text) { l = new Lexical(text); stack = new StringBuilder(); SyntacticalStack = new Stack <StackElement>(); int x = 0; //Fila int y = 0; //Columna int r = 0; //Resultado (regla, desplazamiento o aceptacion) //int pops = 0; //Cantidad de elementos que produce la regla bool error = false; //Bandera que detiene el ciclo bool newSymbol = true; //Decide si se necesita un nuevo simbolo del Lexico o no SyntacticalStack.Push(new State(0)); //StackElement Root = new StackElement() Symbol currentSymbol = new Symbol(); while (!error) { if (newSymbol) { currentSymbol = l.NextSymbol(); DataGridViewRow row = new DataGridViewRow(); row.CreateCells(SymbolsTable); row.Cells[0].Value = currentSymbol.value; row.Cells[1].Value = currentSymbol.name; row.Cells[2].Value = ((int)currentSymbol.type).ToString(); if (((int)currentSymbol.type) == -1) { foreach (DataGridViewCell cell in row.Cells) { cell.Style.BackColor = System.Drawing.Color.Red; cell.Style.ForeColor = System.Drawing.Color.White; } error = true; } SymbolsTable.Rows.Add(row); } y = ((State)SyntacticalStack.Peek()).transicion; x = (int)currentSymbol.type; r = LRTable[y][x]; if (r > 0) { //Desplazamiento SyntacticalStack.Push(new Terminal(currentSymbol)); SyntacticalStack.Push(new State(r)); newSymbol = true; GeneratePrintedStack(); } else if (r < 0) //Reglas { r = Math.Abs(r) - 1; if (r == 0) { //Cadena Aceptada break; } NonTerminal element = null; switch (r) { case 1: //<programa> ::= <Definiciones> element = new Programa(ref SyntacticalStack); break; case 2: //<Definiciones> ::= \e element = new Definiciones(); break; case 3: //<Definiciones> ::= <Definicion> <Definiciones> element = new Definiciones(ref SyntacticalStack); break; case 4: //<Definicion> ::= <DefVar> case 5: //<Definicion> ::= <DefFunc> element = new Definicion(ref SyntacticalStack); break; case 6: //<DefVar> ::= tipo identificador <ListaVar> ; element = new DefVar(ref SyntacticalStack); break; case 7: //<ListaVar> ::= \e element = new ListaVar(); break; case 8: //<ListaVar> ::= , id <ListaVar> element = new ListaVar(ref SyntacticalStack); break; case 9: //<DefFunc> ::= tipo id ( <Parametros> ) <BloqFunc> element = new DefFunc(ref SyntacticalStack); break; case 10: //<Parametros> ::= \e element = new Parametros(); break; case 11: //<Parametros> ::= tipo id <ListaParam> element = new Parametros(ref SyntacticalStack); break; case 12: //R12 <ListaParam> ::= \e element = new ListaParam(); break; case 13: //<ListaParam> ::= , tipo id <ListaParam> element = new ListaParam(ref SyntacticalStack); break; case 14: //<BloqFunc> ::= { <DefLocales> } element = new BloqFunc(ref SyntacticalStack); break; case 15: //<DefLocales> ::= \e element = new DefLocales(); break; case 16: //<DefLocales> ::= <DefLocal> <DefLocales> element = new DefLocales(ref SyntacticalStack); break; case 17: //<DefLocal> ::= <DefVar> element = new DefLocal(ref SyntacticalStack); break; case 18: //<DefLocal> ::= <Sentencia> element = new DefLocal(ref SyntacticalStack); break; case 19: //<Sentencias> ::= \e element = new Sentencias(); break; case 20: //<Sentencias> ::= <Sentencia> <Sentencias> element = new Sentencias(ref SyntacticalStack); break; case 21: //<Sentencia> ::= identificador = <Expresion> ; element = new Asignacion(ref SyntacticalStack); break; case 22: //<Sentencia> ::= if ( <Expresion> ) <SentenciaBloque> <Otro> element = new If(ref SyntacticalStack); break; case 23: //<Sentencia> ::= while ( <Expresion> ) <Bloque> element = new While(ref SyntacticalStack); break; case 24: //<Sentencia> ::= return <ValorRegresa> ; element = new Return(ref SyntacticalStack); break; case 25: //<Sentencia> ::= <LlamadaFunc> ; element = new SentenciaLLama(ref SyntacticalStack); break; case 26: //<Otro> ::= \e element = new Otro(); break; case 27: //<Otro> ::= else <SentenciaBloque> element = new Otro(ref SyntacticalStack); break; case 28: //<Bloque> ::= { <Sentencias> } element = new Bloque(ref SyntacticalStack); break; case 29: //<ValorRegresa> ::= \e element = new ValorRegresa(); break; case 30: //<ValorRegresa> ::= <Expresion> element = new ValorRegresa(ref SyntacticalStack); break; case 31: //<Argumentos> ::= \e element = new Argumentos(); break; case 32: //<Argumentos> ::= <Expresion> <ListaArgumentos> element = new Argumentos(ref SyntacticalStack); break; case 33: //<ListaArgumentos> ::= \e element = new ListaArgumentos(); break; case 34: //<ListaArgumentos> ::= , <Expresion> <ListaArgumentos> element = new ListaArgumentos(ref SyntacticalStack); break; case 35: //<Termino> ::= <LlamadaFunc> case 36: //<Termino> ::= identificador case 37: //<Termino> ::= entero case 38: //<Termino> ::= real case 39: //<Termino> ::= cadena element = new Termino(ref SyntacticalStack); break; case 40: //<LlamadaFunc> ::= identificador ( <Argumentos> ) element = new LlamadaFunc(ref SyntacticalStack); break; case 41: //<SentenciaBloque> ::= <Sentencia> case 42: //<SentenciaBloque> ::= <Bloque> element = new SentenciaBloque(ref SyntacticalStack); break; case 43: //<Expresion> ::= ( <Expresion> ) element = new Expresion(ref SyntacticalStack); break; case 44: //<Expresion> ::= opSuma <Expresion> case 45: //<Expresion> ::= opNot <Expresion> element = new Operacion1(ref SyntacticalStack); break; case 46: //<Expresion> ::= <Expresion> opMul <Expresion> case 47: //<Expresion> ::= <Expresion> opSuma <Expresion> case 48: //<Expresion> ::= <Expresion> opRelac <Expresion> case 49: //<Expresion> ::= <Expresion> opIgualdad <Expresion> case 50: //<Expresion> ::= <Expresion> opAnd <Expresion> case 51: //<Expresion> ::= <Expresion> opOr <Expresion> element = new Operacion2(ref SyntacticalStack); break; case 52: //<Expresion> ::= <Termino> element = new Expresion(ref SyntacticalStack); break; default: //pops = Rules.ElementAt(r - 1).TotalProductions; //if (pops > 0) //{ // while (pops > 0) // { // SyntacticalStack.Pop(); // SyntacticalStack.Pop(); // pops--; // } //} break; } y = ((State)SyntacticalStack.Peek()).transicion; x = element.columna; SyntacticalStack.Push(element); r = LRTable[y][x]; SyntacticalStack.Push(new State(r)); newSymbol = false; GeneratePrintedStack(); Root = element; } else { error = true; } } StringBuilder result = new StringBuilder(); if (error) { result.Append("Error en sÃmbolo: " + currentSymbol.value + "\tLinea: " + currentSymbol.linea + "\r\n"); } return(result.ToString()); }