implab/ImplabNet Files · Implab/Automaton/RegularExpressions/RegularExpressionVisitorT.cs

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             RegularExpressionVisitorT.cs
        
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             / Implab / Automaton / RegularExpressions / RegularExpressionVisitorT.cs
          
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      using Implab;

      using System;

      using System.Collections.Generic;

      using System.Diagnostics;

      using System.Linq;

      namespace Implab.Automaton.RegularExpressions {

          /// <summary>

          /// </summary>

          public class RegularExpressionVisitor<TTag> : RegularExpressionVisitor {

              readonly Dictionary<int, TTag> m_tags = new Dictionary<int, TTag>();

              readonly ITaggedDFABuilder<TTag> m_builder;

              public RegularExpressionVisitor(ITaggedDFABuilder<TTag> builder) : base(builder) {

                  m_builder = builder;

              }

              public override void Visit(EndToken token) {

                  base.Visit(token);

                  var tagged = token as EndToken<TTag>;

                  if (tagged != null)

                      m_tags.Add(Index, tagged.Tag);

              }

              protected override void MarkFinalState(HashSet<int> state) {

                  base.MarkFinalState(state);

                  m_builder.SetStateTag(Translate(state), GetStateTags(state));

              }

              TTag[] GetStateTags(IEnumerable<int> state) {

                  Debug.Assert(state != null);

                  return state.Where(m_tags.ContainsKey).Select(pos => m_tags[pos]).ToArray();

              }

          }

      }

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				using Implab;
				using System;
				using System.Collections.Generic;
				using System.Diagnostics;
				using System.Linq;

				namespace Implab.Automaton.RegularExpressions {
				/// <summary>
				/// </summary>
				public class RegularExpressionVisitor<TTag> : RegularExpressionVisitor {
				readonly Dictionary<int, TTag> m_tags = new Dictionary<int, TTag>();

				readonly ITaggedDFABuilder<TTag> m_builder;

				public RegularExpressionVisitor(ITaggedDFABuilder<TTag> builder) : base(builder) {
				m_builder = builder;
				}

				public override void Visit(EndToken token) {
				base.Visit(token);
				var tagged = token as EndToken<TTag>;
				if (tagged != null)
				m_tags.Add(Index, tagged.Tag);
				}

				protected override void MarkFinalState(HashSet<int> state) {
				base.MarkFinalState(state);
				m_builder.SetStateTag(Translate(state), GetStateTags(state));
				}

				TTag[] GetStateTags(IEnumerable<int> state) {
				Debug.Assert(state != null);
				return state.Where(m_tags.ContainsKey).Select(pos => m_tags[pos]).ToArray();
				}

				}
				}