Ejemplo n.º 1
0
        /// <summary>
        /// Build string from automaton.
        /// </summary>
        /// <param name="root">Root state</param>
        /// <param name="current">Current State</param>
        /// <param name="inputCustom">Input custom (do not modify)</param>
        /// <param name="pos">Return current position</param>
        /// <param name="nextCharacter">Return next valid character.</param>
        /// <returns>If nextCharacter is -1, Return only next character, otherwise, return all the string.</returns>
        public virtual string FromAutomaton(InputAutomaton root, InputAutomaton current, IInputCustom custom, ref int pos, ref int nextCharacter)
        {
            var result = new StringBuilder();

            pos = 0;

            InputAutomaton automaton = root;

            while (!(automaton.IsAccept()))
            {
                bool found = false;
                KeyValuePair <int, InputAutomaton.Connect> select = new KeyValuePair <int, InputAutomaton.Connect>();
                foreach (var i in automaton.GetConnect())
                {
                    // Use first connection because no need to consider customization
                    int            c             = i.Key;
                    bool           valid         = false;
                    InputAutomaton automaton_tmp = automaton.Input(c, ref valid, null);
                    if (current == automaton_tmp)
                    {
                        select = i;
                        found  = true;
                    }
                }

                if (!found)
                {
                    // Found no route, use the first route
                    select = automaton.GetConnect().First();
                }

                int    c2        = select.Key;
                string addstring = select.Value.Character;

                // In CPU mode, use only first key
                if (nextCharacter != -1)
                {
                    nextCharacter = c2;
                    break;
                }

                // Go to next automaton
                bool valid2 = false;
                result.Append(addstring);
                automaton = automaton.Input(c2, ref valid2, null);
                if (current == automaton)
                {
                    pos = result.Length;
                }
            }

            return(result.ToString());
        }
Ejemplo n.º 2
0
        /// <summary>
        /// Build string from automaton.
        /// </summary>
        /// <param name="root">Root state</param>
        /// <param name="current">Current State</param>
        /// <param name="inputCustom">Input custom (do not modify)</param>
        /// <param name="pos">Return current position</param>
        /// <param name="nextCharacter">Return next valid character.</param>
        /// <returns>If nextCharacter is -1, Return only next character, otherwise, return all the string.</returns>
        public virtual string FromAutomaton(InputAutomaton root, InputAutomaton current, IInputCustom custom, ref int pos, ref int nextCharacter)
        {
            var result = new StringBuilder();

            pos = 0;

            InputAutomaton automaton = root;

            while (!(automaton.IsAccept()))
            {
                int    c         = '\0';
                string addstring = "";

                // If we have perfect input custom, use that
                foreach (var i in automaton.GetConnect())
                {
                    if (custom.IsSet(i.Value.Flags))
                    {
                        c         = i.Key;
                        addstring = i.Value.Character;
                        break;
                    }
                }

                if (c == '\0')
                {
                    // Found no route, use the first route
                    c         = automaton.GetConnect().First().Key;
                    addstring = automaton.GetConnect().First().Value.Character;
                }

                // In CPU mode, use only first key
                if (nextCharacter != -1)
                {
                    nextCharacter = c;
                    break;
                }

                // Go to next automaton
                bool valid = false;
                result.Append(addstring);
                automaton = automaton.Input(c, ref valid, null);
                if (current == automaton)
                {
                    pos = result.Length;
                }
            }

            return(result.ToString());
        }