[5574] | 1 | #region License Information
|
---|
| 2 | /* HeuristicLab
|
---|
[12012] | 3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
|
---|
[5574] | 4 | *
|
---|
| 5 | * This file is part of HeuristicLab.
|
---|
| 6 | *
|
---|
| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
|
---|
| 8 | * it under the terms of the GNU General Public License as published by
|
---|
| 9 | * the Free Software Foundation, either version 3 of the License, or
|
---|
| 10 | * (at your option) any later version.
|
---|
| 11 | *
|
---|
| 12 | * HeuristicLab is distributed in the hope that it will be useful,
|
---|
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 15 | * GNU General Public License for more details.
|
---|
| 16 | *
|
---|
| 17 | * You should have received a copy of the GNU General Public License
|
---|
| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
|
---|
| 19 | */
|
---|
| 20 | #endregion
|
---|
| 21 |
|
---|
| 22 | using System.Globalization;
|
---|
| 23 |
|
---|
[11457] | 24 | namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
|
---|
[5574] | 25 | internal enum TokenSymbol { LPAR, RPAR, SYMB, NUMBER };
|
---|
| 26 | internal class Token {
|
---|
| 27 | public static readonly Token LPAR = Token.Parse("(");
|
---|
| 28 | public static readonly Token RPAR = Token.Parse(")");
|
---|
| 29 |
|
---|
| 30 | public TokenSymbol Symbol { get; set; }
|
---|
| 31 | public string StringValue { get; set; }
|
---|
| 32 | public double DoubleValue { get; set; }
|
---|
| 33 | public Token() { }
|
---|
| 34 |
|
---|
| 35 | public override bool Equals(object obj) {
|
---|
| 36 | Token other = (obj as Token);
|
---|
| 37 | if (other == null) return false;
|
---|
| 38 | if (other.Symbol != Symbol) return false;
|
---|
| 39 | return other.StringValue == this.StringValue;
|
---|
| 40 | }
|
---|
| 41 |
|
---|
| 42 | public override int GetHashCode() {
|
---|
| 43 | return Symbol.GetHashCode() & StringValue.GetHashCode();
|
---|
| 44 | }
|
---|
| 45 |
|
---|
| 46 | public static Token Parse(string strToken) {
|
---|
| 47 | strToken = strToken.Trim();
|
---|
| 48 | Token t = new Token();
|
---|
| 49 | t.StringValue = strToken.Trim();
|
---|
| 50 | double temp;
|
---|
| 51 | if (strToken == "") {
|
---|
| 52 | t = null;
|
---|
| 53 | } else if (strToken == "(") {
|
---|
| 54 | t.Symbol = TokenSymbol.LPAR;
|
---|
| 55 | } else if (strToken == ")") {
|
---|
| 56 | t.Symbol = TokenSymbol.RPAR;
|
---|
| 57 | } else if (double.TryParse(strToken, NumberStyles.Float, CultureInfo.InvariantCulture.NumberFormat, out temp)) {
|
---|
| 58 | t.Symbol = TokenSymbol.NUMBER;
|
---|
| 59 | t.DoubleValue = double.Parse(strToken, CultureInfo.InvariantCulture.NumberFormat);
|
---|
| 60 | } else {
|
---|
| 61 | t.Symbol = TokenSymbol.SYMB;
|
---|
| 62 | t.StringValue = t.StringValue.ToUpper();
|
---|
| 63 | }
|
---|
| 64 | return t;
|
---|
| 65 | }
|
---|
| 66 | }
|
---|
| 67 | }
|
---|