ApiExamples.ExRange.ChangeTextToHyperlinksEvaluator.IReplacingCallback C# (CSharp) Метод

            ReplaceAction IReplacingCallback.Replacing(ReplacingArgs e)
            {
                // This is the run node that contains the found text. Note that the run might contain other 
                // text apart from the URL. All the complexity below is just to handle that. I don't think there
                // is a simpler way at the moment.
                Run run = (Run)e.MatchNode;

                Paragraph para = run.ParentParagraph;

                string url = e.Match.Value;

                // We are using \xbf (inverted question mark) symbol for temporary purposes.
                // Any symbol will do that is non-special and is guaranteed not to be presented in the document.
                // The purpose is to split the matched run into two and insert a hyperlink field between them.
                para.Range.Replace(url, "\xbf", true, true);

                Run subRun = (Run)run.Clone(false);
                int pos = run.Text.IndexOf("\xbf");
                subRun.Text = subRun.Text.Substring(0, pos);
                run.Text = run.Text.Substring(pos + 1, run.Text.Length - pos - 1);

                para.ChildNodes.Insert(para.ChildNodes.IndexOf(run), subRun);

                this.mBuilder.MoveTo(run);

                // Specify font formatting for the hyperlink.
                this.mBuilder.Font.Color = Color.Blue;
                this.mBuilder.Font.Underline = Underline.Single;

                // Insert the hyperlink.
                this.mBuilder.InsertHyperlink(url, url, false);

                // Clear hyperlink formatting.
                this.mBuilder.Font.ClearFormatting();

                // Let's remove run if it is empty.
                if (run.Text.Equals(""))
                    run.Remove();

                // No replace action is necessary - we have already done what we intended to do.
                return ReplaceAction.Skip;
            }