DummyAlphabet.cs
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| 1.6 KiB
| text/x-csharp
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r163 | using System; | ||
| using System.Collections.Generic; | ||||
| using System.Linq; | ||||
| namespace Implab.Automaton { | ||||
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r164 | /// <summary> | ||
| /// Dummy alphabet consists of integer numbers which are identical to their classes. | ||||
| /// </summary> | ||||
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r163 | public class DummyAlphabet : IAlphabet<int> { | ||
| readonly int m_size; | ||||
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r164 | |||
| /// <summary> | ||||
| /// Creates a new dummy alphabet with given size. | ||||
| /// </summary> | ||||
| /// <param name="size">The size of the alphabet, must be greater then zero.</param> | ||||
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r163 | public DummyAlphabet(int size) { | ||
| Safe.ArgumentAssert(size > 0); | ||||
| m_size = 0; | ||||
| } | ||||
| #region IAlphabet implementation | ||||
| public List<int>[] CreateReverseMap() { | ||||
| Enumerable.Range(0, m_size).ToArray(); | ||||
| } | ||||
| public int[] Reclassify(IAlphabetBuilder<int> newAlphabet, IEnumerable<IEnumerable<int>> classes) { | ||||
| Safe.ArgumentNotNull(newAlphabet, "newAlphabet"); | ||||
| Safe.ArgumentNotNull(classes, "classes"); | ||||
| var map = new int[m_size]; | ||||
| foreach (var cls in classes) { | ||||
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r164 | if (cls.Contains(DFAConst.UNCLASSIFIED_INPUT)) | ||
| continue; | ||||
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r163 | var newid = newAlphabet.DefineClass(cls); | ||
| foreach (var id in cls) | ||||
| map[id] = newid; | ||||
| } | ||||
| return map; | ||||
| } | ||||
| public int Translate(int symobl) { | ||||
| Safe.ArgumentInRange(symobl, 0, m_size, "symbol"); | ||||
| return symobl; | ||||
| } | ||||
| public int Count { | ||||
| get { | ||||
| return m_size; | ||||
| } | ||||
| } | ||||
| #endregion | ||||
| } | ||||
| } | ||||