How to read the highlighted text from the paragraph using regex find and replace callback function

Aspose.Words Product Family
1

Hi,

I have a requirement to read the highlighted text from the paragraph, and I am able to do so via the run properties ‘run.Font.HighlightColor.IsEmpty’. but I would like to know if there is any other way where I can do it in the find and replace callback function with some regex pattern. I want to do it with regex because I am using regex find and replace to find other formatting issues like repeated words etc.

Thanks

2

@Nizzam2024 Unfortunately, there is no way to find highlighted text using regular expression. But you can check whether the captured text is highlighted. For example see the following code:

Document doc = new Document(@"C:\Temp\in.docx");
FindReplaceOptions opt = new FindReplaceOptions(FindReplaceDirection.Backward);
opt.ReplacingCallback = new CheckHighlightedCallback();
doc.Range.Replace("find me", "", opt);

private class CheckHighlightedCallback : IReplacingCallback
{
    public ReplaceAction Replacing(ReplacingArgs args)
    {
        List<Run> matchedRuns = GetMatchedRuns(args);
        Console.WriteLine(matchedRuns.Any(r => !r.Font.HighlightColor.IsEmpty));
        return ReplaceAction.Skip;
    }

    private static List<Run> GetMatchedRuns(ReplacingArgs args)
    {
        // This is a Run node that contains either the beginning or the complete match.
        Node currentNode = args.MatchNode;

        // The first (and may be the only) run can contain text before the match, 
        // in this case it is necessary to split the run.
        if (args.MatchOffset > 0)
            currentNode = SplitRun((Run)currentNode, args.MatchOffset);

        // This array is used to store all nodes of the match for further deleting.
        List<Run> runs = new List<Run>();

        // Find all runs that contain parts of the match string.
        int remainingLength = args.Match.Value.Length;
        while (
            remainingLength > 0 &&
            currentNode != null &&
            currentNode.GetText().Length <= remainingLength)
        {
            runs.Add((Run)currentNode);
            remainingLength -= currentNode.GetText().Length;

            // Select the next Run node.
            // Have to loop because there could be other nodes such as BookmarkStart etc.
            do
            {
                currentNode = currentNode.NextSibling;
            } while (currentNode != null && currentNode.NodeType != NodeType.Run);
        }

        // Split the last run that contains the match if there is any text left.
        if (currentNode != null && remainingLength > 0)
        {
            SplitRun((Run)currentNode, remainingLength);
            runs.Add((Run)currentNode);
        }

        return runs;
    }

    private static Run SplitRun(Run run, int position)
    {
        Run afterRun = (Run)run.Clone(true);
        run.ParentNode.InsertAfter(afterRun, run);
        afterRun.Text = run.Text.Substring(position);
        run.Text = run.Text.Substring((0), (0) + (position));
        return afterRun;
    }
}
3

let me try
Thanks @alexey.noskov

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