source: branches/HeuristicLab.DataAnalysis.Symbolic.LinearInterpreter/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.4/Interfaces/ISymbolicExpressionGrammarBase.cs @ 9732

Last change on this file since 9732 was 9732, checked in by bburlacu, 6 years ago

#2021: Merged trunk changes for HeuristicLab.Encodings.SymbolicExpressionTreeEncoding and HeuristicLab.Problems.DataAnalysis.Symbolic. Replaced prefix iteration of nodes in the linear interpretation with breadth iteration for simplified logic and extra performance. Reversed unnecessary changes to other projects.

File size: 1.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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
22using System;
23using System.Collections.Generic;
24using HeuristicLab.Core;
25
26namespace HeuristicLab.Encodings.SymbolicExpressionTreeEncoding {
27  public interface ISymbolicExpressionGrammarBase : INamedItem {
28    IEnumerable<ISymbol> Symbols { get; }
29    ISymbol GetSymbol(string symbolName);
30    IEnumerable<ISymbol> AllowedSymbols { get; }
31    bool ContainsSymbol(ISymbol symbol);
32
33    bool IsAllowedChildSymbol(ISymbol parent, ISymbol child);
34    bool IsAllowedChildSymbol(ISymbol parent, ISymbol child, int argumentIndex);
35    IEnumerable<ISymbol> GetAllowedChildSymbols(ISymbol parent);
36    IEnumerable<ISymbol> GetAllowedChildSymbols(ISymbol parent, int argumentIndex);
37
38    int GetMinimumSubtreeCount(ISymbol symbol);
39    int GetMaximumSubtreeCount(ISymbol symbol);
40
41    int GetMinimumExpressionDepth(ISymbol start);
42    int GetMaximumExpressionDepth(ISymbol start);
43    int GetMinimumExpressionLength(ISymbol start);
44    int GetMaximumExpressionLength(ISymbol start, int maxDepth);
45
46    event EventHandler Changed;
47  }
48}
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