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165
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1 using System.Collections.Generic;
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2
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3
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4 namespace Implab.Automaton {
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5 /// <summary>
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6 /// Полностью описывает DFA автомат, его поведение, состояние и входные символы.
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7 /// </summary>
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8 /// <example>
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9 /// class MyAutomaton {
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10 /// int m_current;
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11 /// readonly DFAStateDescriptor<string>[] m_automaton;
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12 /// readonly IAlphabet<MyCommands> m_commands;
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13 ///
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14 /// public MyAutomaton(IDFADefinition<MyCommands,MyStates,string> definition) {
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15 /// m_current = definition.StateAlphabet.Translate(MyStates.Initial);
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16 /// m_automaton = definition.GetTransitionTable();
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17 /// m_commands = definition.InputAlphabet;
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18 /// }
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19 ///
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20 /// // defined a method which will move the automaton to the next state
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21 /// public void Move(MyCommands cmd) {
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22 /// // use transition map to determine the next state
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23 /// var next = m_automaton[m_current].transitions[m_commands.Translate(cmd)];
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24 ///
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25 /// // validate that we aren't in the unreachable state
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26 /// if (next == DFAConst.UNREACHABLE_STATE)
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27 /// throw new InvalidOperationException("The specified command is invalid");
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28 ///
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29 /// // if everything is ok
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30 /// m_current = next;
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31 /// }
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32 /// }
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33 /// </example>
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166
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34 public interface IDFATable : IEnumerable<AutomatonTransition> {
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165
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35 int StateCount {
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36 get;
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37 }
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38
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39 int AlphabetSize {
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40 get;
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41 }
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42
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43 int InitialState {
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44 get;
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45 }
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46
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47 bool IsFinalState(int s);
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48
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49 IEnumerable<int> FinalStates {
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50 get;
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51 }
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52 }
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53 }
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