implab/ImplabNet Files · Implab/Automaton/DFAutomaton.cs

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             DFAutomaton.cs
        
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             / Implab / Automaton / DFAutomaton.cs
          
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        cin
    
DFA refactoring

              r162
            
      using Implab;

      using System;

      using System.Collections.Generic;

      using System.Diagnostics;

      using System.Linq;

      using System.Text;

      using System.Threading.Tasks;

      namespace Implab.Automaton {

          public abstract class DFAutomaton<T> {

              protected struct ContextFrame {

                  public DFAStateDescriptior[] states;

                  public int current;

                  public T info;

              }

              public const int INITIAL_STATE = DFADefinition.INITIAL_STATE;

              public const int UNREACHEBLE_STATE = DFADefinition.UNREACHEBLE_STATE;

              protected ContextFrame m_context;

              Stack<ContextFrame> m_contextStack = new Stack<ContextFrame>();

              protected int Level {

                  get { return m_contextStack.Count; }

              }

              protected DFAutomaton(DFAStateDescriptior[] states, int startState, T info) {

                  Safe.ArgumentNotNull(states, "states");

                  Safe.ArgumentInRange(startState, 0, states.Length - 1, "startState");

                  m_context.states = states;

                  m_context.current = startState;

                  m_context.info = info;

              }

              protected void Switch(DFAStateDescriptior[] states, int current, T info) {

                  Debug.Assert(states != null);

                  Debug.Assert(current >= 0 && current < states.Length);

                  m_contextStack.Push(m_context);

                  m_context.states = states;

                  m_context.current = current;

                  m_context.info = info;

              }

              protected void Restore() {

                  Debug.Assert(m_contextStack.Count > 0);

                  m_context = m_contextStack.Pop();

              }

              protected void Move(int input) {

                  Debug.Assert(input > 0 && input < m_context.states[m_context.current].transitions.Length);

                  m_context.current = m_context.states[m_context.current].transitions[input];

              }

              protected bool CanMove(int input) {

                  Debug.Assert(input > 0 && input < m_context.states[m_context.current].transitions.Length);

                  return m_context.states[m_context.current].transitions[input] != UNREACHEBLE_STATE;

              }

          }

      }

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cin DFA refactoring	r162	using Implab;
		using System;
		using System.Collections.Generic;
		using System.Diagnostics;
		using System.Linq;
		using System.Text;
		using System.Threading.Tasks;

		namespace Implab.Automaton {
		public abstract class DFAutomaton<T> {
		protected struct ContextFrame {
		public DFAStateDescriptior[] states;
		public int current;
		public T info;
		}

		public const int INITIAL_STATE = DFADefinition.INITIAL_STATE;
		public const int UNREACHEBLE_STATE = DFADefinition.UNREACHEBLE_STATE;

		protected ContextFrame m_context;
		Stack<ContextFrame> m_contextStack = new Stack<ContextFrame>();

		protected int Level {
		get { return m_contextStack.Count; }
		}

		protected DFAutomaton(DFAStateDescriptior[] states, int startState, T info) {
		Safe.ArgumentNotNull(states, "states");
		Safe.ArgumentInRange(startState, 0, states.Length - 1, "startState");

		m_context.states = states;
		m_context.current = startState;
		m_context.info = info;
		}

		protected void Switch(DFAStateDescriptior[] states, int current, T info) {
		Debug.Assert(states != null);
		Debug.Assert(current >= 0 && current < states.Length);
		m_contextStack.Push(m_context);
		m_context.states = states;
		m_context.current = current;
		m_context.info = info;
		}

		protected void Restore() {
		Debug.Assert(m_contextStack.Count > 0);

		m_context = m_contextStack.Pop();
		}

		protected void Move(int input) {
		Debug.Assert(input > 0 && input < m_context.states[m_context.current].transitions.Length);
		m_context.current = m_context.states[m_context.current].transitions[input];
		}

		protected bool CanMove(int input) {
		Debug.Assert(input > 0 && input < m_context.states[m_context.current].transitions.Length);
		return m_context.states[m_context.current].transitions[input] != UNREACHEBLE_STATE;
		}
		}
		}