implab/ImplabNet Files · Implab/src/Formats/CharMap.cs

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             CharMap.cs
        
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             / Implab / src / Formats / CharMap.cs
          
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      using Implab.Automaton;

      using System;

      using System.Collections.Generic;

      using System.Linq;

      using System.Runtime.CompilerServices;

      using System.Text;

      using System.Threading.Tasks;

      namespace Implab.Formats {

          public class CharMap : IAlphabet<char> {

              readonly char m_min;

              readonly char m_max;

              readonly int[] m_map;

              public CharMap(char min, int[] map) {

                  Safe.ArgumentNotNull(map, nameof(map));

                  Count = map.Max()+1;

                  m_min = min;

                  m_map = map;

                  m_max = (char)(min + map.Length);

              }

              public int Count {

                  get; private set;

              }

              public bool Contains(char symbol) {

                  return symbol >= m_min && symbol <= m_max && m_map[symbol-m_min] != AutomatonConst.UnclassifiedInput;

              }

              public IEnumerable<char> GetSymbols(int cls) {

                  for (var i = 0; i < m_map.Length; i++)

                      if (m_map[i] == cls)

                          yield return (char)(i + m_min);

              }

              [MethodImpl(MethodImplOptions.AggressiveInlining)]

              public int Translate(char symbol) {

                  return symbol >= m_min && symbol <= m_max ? m_map[symbol-m_min] : AutomatonConst.UnclassifiedInput;

              }

          }

      }

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				using Implab.Automaton;
				using System;
				using System.Collections.Generic;
				using System.Linq;
				using System.Runtime.CompilerServices;
				using System.Text;
				using System.Threading.Tasks;

				namespace Implab.Formats {
				public class CharMap : IAlphabet<char> {
				readonly char m_min;
				readonly char m_max;
				readonly int[] m_map;

				public CharMap(char min, int[] map) {
				Safe.ArgumentNotNull(map, nameof(map));
				Count = map.Max()+1;
				m_min = min;
				m_map = map;
				m_max = (char)(min + map.Length);
				}

				public int Count {
				get; private set;
				}

				public bool Contains(char symbol) {
				return symbol >= m_min && symbol <= m_max && m_map[symbol-m_min] != AutomatonConst.UnclassifiedInput;
				}

				public IEnumerable<char> GetSymbols(int cls) {
				for (var i = 0; i < m_map.Length; i++)
				if (m_map[i] == cls)
				yield return (char)(i + m_min);
				}

				[MethodImpl(MethodImplOptions.AggressiveInlining)]
				public int Translate(char symbol) {
				return symbol >= m_min && symbol <= m_max ? m_map[symbol-m_min] : AutomatonConst.UnclassifiedInput;
				}
				}
				}