iTextSharp.text.pdf.BidiLine.GetWord C# (CSharp) Метод

        public int[] GetWord(int startIdx, int idx)
        {
            int last = idx;
            int first = idx;
            // forward
            for (; last < totalTextLength; ++last) {
                if (!char.IsLetter(text[last]))
                    break;
            }
            if (last == idx)
                return null;
            // backward
            for (; first >= startIdx; --first) {
                if (!char.IsLetter(text[first]))
                    break;
            }
            ++first;
            return new int[]{first, last};
        }