Lucene.Net.Analysis.CommonGrams.CommonGramsFilter.GramToken C# (CSharp) Method

        private void GramToken()
        {
            buffer.Append(termAttribute.Buffer(), 0, termAttribute.Length);
            int endOffset = offsetAttribute.EndOffset();

            ClearAttributes();

            var length = buffer.Length;
            var termText = termAttribute.Buffer();
            if (length > termText.Length)
            {
                termText = termAttribute.ResizeBuffer(length);
            }

            buffer.CopyTo(0, termText, 0, length);
            termAttribute.Length = length;
            posIncAttribute.PositionIncrement = 0;
            posLenAttribute.PositionLength = 2; // bigram
            offsetAttribute.SetOffset(lastStartOffset, endOffset);
            typeAttribute.Type = GRAM_TYPE;
            buffer.Length = 0;
        }
    }