AIMA.Core.Logic.Common.Lexer.loadNextCharacterFromInput C# (CSharp) Метод

        protected void loadNextCharacterFromInput()
        {

            bool eofEncountered = false;
            for (int i = 0; i < _lookAhead - 1; i++)
            {

                lookAheadBuffer[i] = lookAheadBuffer[i + 1];
                if (isEndOfFile(lookAheadBuffer[i]))
                {
                    eofEncountered = true;
                    break;
                }
            }
            if (!eofEncountered)
            {
                    lookAheadBuffer[_lookAhead - 1] = input.Read();
                
            }

        }