public Expresiones ParExpr() { if (currentToken.Tipo == TipoToken.TK_ID) { Variable V = new Variable(); V.id = currentToken.Lexema; currentToken = lex.NextToken(); StatementP(V); return V; } else if (currentToken.Tipo == TipoToken.TK_INT_LIT) { LiteralEntero LE = new LiteralEntero(Convert.ToInt32(currentToken.Lexema)); currentToken = lex.NextToken(); return LE; } else if (currentToken.Tipo == TipoToken.TK_FLOAT_LIT) { LiteralFlotante LF = new LiteralFlotante(float.Parse(currentToken.Lexema)); currentToken = lex.NextToken(); return LF; } else if (currentToken.Tipo == TipoToken.TK_STRING_LIT) { LitString LS = new LitString(currentToken.Lexema); currentToken = lex.NextToken(); return LS; } else if (currentToken.Tipo == TipoToken.TK_CHAR_LIT) { LitChar LC = new LitChar(currentToken.Lexema); currentToken = lex.NextToken(); return LC; } else if (currentToken.Tipo == TipoToken.TK_TRUE) { LitBool LB = new LitBool(true); currentToken = lex.NextToken(); return LB; } else if (currentToken.Tipo == TipoToken.TK_FALSE) { LitBool LB = new LitBool(false); currentToken = lex.NextToken(); return LB; } else if (currentToken.Tipo == TipoToken.TK_OPENPAR) { currentToken = lex.NextToken(); Expresiones EX = Expr(); if (currentToken.Tipo == TipoToken.TK_CLOSEPAR) { currentToken = lex.NextToken(); return EX; } else { throw new Exception("Error Sintactico - Se esperaba simbolo )"); } } else if (currentToken.Tipo == TipoToken.TK_MASMAS || currentToken.Tipo == TipoToken.TK_MENOSMENOS) { currentToken = lex.NextToken(); } return null; }
public Expresiones ParExpr() { if (currentToken.Tipo == TipoToken.TK_INT_LIT) { LiteralEntero LE = new LiteralEntero(Convert.ToInt32(currentToken.Lexema)); currentToken = lex.NextToken(); return LE; } else if (currentToken.Tipo == TipoToken.TK_FLOAT_LIT) { LiteralFlotante LF = new LiteralFlotante(float.Parse(currentToken.Lexema)); currentToken = lex.NextToken(); return LF; } else if (currentToken.Tipo == TipoToken.TK_STRING_LIT) { LitString LS = new LitString(currentToken.Lexema); currentToken = lex.NextToken(); return LS; } else if (currentToken.Tipo == TipoToken.TK_CHAR_LIT) { LitChar LC = new LitChar(currentToken.Lexema); currentToken = lex.NextToken(); return LC; } else if (currentToken.Tipo == TipoToken.TK_TRUE) { LitBool LB = new LitBool(true); currentToken = lex.NextToken(); return LB; } else if (currentToken.Tipo == TipoToken.TK_FALSE) { LitBool LB = new LitBool(false); currentToken = lex.NextToken(); return LB; } else if (currentToken.Tipo == TipoToken.TK_ID) { ExprFuncion V = new ExprFuncion(); V.ID = new Variable(currentToken.Lexema, null); currentToken = lex.NextToken(); if (currentToken.Tipo == TipoToken.TK_MASMAS) { currentToken = lex.NextToken(); ExpMasMas expMasMas = new ExpMasMas(); expMasMas.ID = V.ID; return expMasMas; } else if (currentToken.Tipo == TipoToken.TK_MENOSMENOS) { currentToken = lex.NextToken(); ExpMasMas expMasMas = new ExpMasMas(); expMasMas.ID = V.ID; return expMasMas; } else if (currentToken.Tipo == TipoToken.TK_PUNTO || currentToken.Tipo == TipoToken.TK_ID || currentToken.Tipo == TipoToken.TK_OPENPAR || currentToken.Tipo == TipoToken.TK_OPENCOR) { try { V.ID.accesor = Accesories(V.ID.accesor); Access tmp = ((Access) V.ID.accesor); if (tmp.Next != null) { tmp = tmp.Last(); } if (V.ID.accesor != null && tmp is AccessFunc) { AccessFunc v = ((AccessFunc)tmp); V.VarList = v.Variables; return V; } else return V.ID; } catch (Exception ex) { throw ex; } } else { return V.ID; } } return null; }
public Expresiones Parexp() { if (currentToken.Tipo == Lexico.TipoToken.TK_OPENPAR) { currentToken = lex.NextToken(); Expression(); if (currentToken.Tipo != Lexico.TipoToken.TK_CLOSEPAR) throw new Exception("Se esperaba un )"); currentToken = lex.NextToken(); } else if (currentToken.Tipo == Lexico.TipoToken.TK_INT_LIT) { LiteralEntero lit = new LiteralEntero(Convert.ToInt32(currentToken.Lexema)); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_FLOAT_LIT) { LiteralFlotante lit = new LiteralFlotante(float.Parse(currentToken.Lexema)); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_CHAR_LIT) { LitChar lit = new LitChar(currentToken.Lexema); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_STRING_LIT) { LitString lit = new LitString(currentToken.Lexema); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_ID) { Variable v = new Variable(); v.id = currentToken.Lexema; currentToken = lex.NextToken(); StatementP(v); return v; } else if (currentToken.Tipo == Lexico.TipoToken.TK_TRUE) { LitBool lit = new LitBool(true); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_FALSE) { LitBool lit = new LitBool(false); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_MASMAS) { currentToken = lex.NextToken(); } else if (currentToken.Tipo == Lexico.TipoToken.TK_MENOSMENOS) { currentToken = lex.NextToken(); } return null; }
public Expresiones Parexp() { try { if (currentToken.Tipo == Lexico.TipoToken.TK_INT_LIT) { LiteralEntero lit = new LiteralEntero(Convert.ToInt32(currentToken.Lexema)); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_FLOAT_LIT) { LiteralFlotante lit = new LiteralFlotante(float.Parse(currentToken.Lexema)); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_CHAR_LIT) { LitChar lit = new LitChar(currentToken.Lexema); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_STRING_LIT) { LitString lit = new LitString(currentToken.Lexema); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_TRUE) { LitBool lit = new LitBool(true); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_FALSE) { LitBool lit = new LitBool(false); currentToken = lex.NextToken(); return lit; } else if (currentToken.Tipo == Lexico.TipoToken.TK_ID) { ExprFuncion V = new ExprFuncion(); V.ID = new Variable(currentToken.Lexema, null); currentToken = lex.NextToken(); if (currentToken.Tipo == Lexico.TipoToken.TK_PUNTO || currentToken.Tipo == Lexico.TipoToken.TK_ID || currentToken.Tipo == Lexico.TipoToken.TK_OPENPAR || currentToken.Tipo == Lexico.TipoToken.TK_OPENCOR) { try { V.ID.accesor = Accesories(V.ID.accesor); Access tmp = ((Access)V.ID.accesor); if (tmp.Next != null) { tmp = tmp.Last(); } if (V.ID.accesor != null && tmp is AccessFunc) { AccessFunc v = ((AccessFunc)tmp); V.VarList = v.Variables; return V; } else return V.ID; } catch (Exception ex) { throw ex; } } else { return V.ID; } } return null; /* ExprFuncion V = new ExprFuncion(); V.ID = new Variable(currentToken.Lexema, null); currentToken = lex.NextToken(); V.ID.accesor = Accesories(V.ID.accesor); if (V.ID.accesor != null) return V; else return V.ID; */ // return null; } catch (Exception ex) { throw ex; } }