iTextSharp.text.pdf.DocumentFont.FillMetrics C# (CSharp) 메소드

        private void FillMetrics(byte[] touni, IntHashtable widths, int dw)
        {
            PdfContentParser ps = new PdfContentParser(new PRTokeniser(touni));
            PdfObject ob = null;
            bool notFound = true;
            int nestLevel = 0;
            int maxExc = 50;
            while ((notFound || nestLevel > 0)) {
                try {
                    ob = ps.ReadPRObject();
                }
                catch {
                    if (--maxExc < 0)
                        break;
                    continue;
                }
                if (ob == null)
                    break;
                if (ob.Type == PdfContentParser.COMMAND_TYPE) {
                    if (ob.ToString().Equals("begin")) {
                        notFound = false;
                        nestLevel++;
                    }
                    else if (ob.ToString().Equals("end")) {
                        nestLevel--;
                    }
                    else if (ob.ToString().Equals("beginbfchar")) {
                        while (true) {
                            PdfObject nx = ps.ReadPRObject();
                            if (nx.ToString().Equals("endbfchar"))
                                break;
                            String cid = DecodeString((PdfString)nx);
                            String uni = DecodeString((PdfString)ps.ReadPRObject());
                            if (uni.Length == 1) {
                                int cidc = (int)cid[0];
                                int unic = (int)uni[uni.Length - 1];
                                int w = dw;
                                if (widths.ContainsKey(cidc))
                                    w = widths[cidc];
                                metrics[unic] = new int[]{cidc, w};
                            }
                        }
                    }
                    else if (ob.ToString().Equals("beginbfrange")) {
                        while (true) {
                            PdfObject nx = ps.ReadPRObject();
                            if (nx.ToString().Equals("endbfrange"))
                                break;
                            String cid1 = DecodeString((PdfString)nx);
                            String cid2 = DecodeString((PdfString)ps.ReadPRObject());
                            int cid1c = (int)cid1[0];
                            int cid2c = (int)cid2[0];
                            PdfObject ob2 = ps.ReadPRObject();
                            if (ob2.IsString()) {
                                String uni = DecodeString((PdfString)ob2);
                                if (uni.Length == 1) {
                                    int unic = (int)uni[uni.Length - 1];
                                    for (; cid1c <= cid2c; cid1c++, unic++) {
                                        int w = dw;
                                        if (widths.ContainsKey(cid1c))
                                            w = widths[cid1c];
                                        metrics[unic] = new int[]{cid1c, w};
                                    }
                                }
                            }
                            else {
                                PdfArray a = (PdfArray)ob2;
                                for (int j = 0; j < a.Size; ++j, ++cid1c) {
                                    String uni = DecodeString(a.GetAsString(j));
                                    if (uni.Length == 1) {
                                        int unic = (int)uni[uni.Length - 1];
                                        int w = dw;
                                        if (widths.ContainsKey(cid1c))
                                            w = widths[cid1c];
                                        metrics[unic] = new int[]{cid1c, w};
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }