HTML to List using XMLWorker

Question

Could somebody please provide an example of parsing HTML into a list of elements using XMLWorkerHelper in iTextSharp (C#).

The JAVA version as given in the documenta

Answer 1

You need to implement the IElementHandler interface in a class of your own:

public class SampleHandler : IElementHandler {
    //Generic list of elements
    public List elements = new List();
    //Add the supplied item to the list
    public void Add(IWritable w) {
        if (w is WritableElement) {
            elements.AddRange(((WritableElement)w).Elements());
        }
    }
}

Instead of using the file stream here's an example parsing a string. To use a file replace the StringReader with a StreamReader.

    string html = "
This is a test. Bold and italic
Dog
Cat
";
    //Instantiate our handler
    var mh = new SampleHandler();
    //Bind a reader to our text
    using (TextReader sr = new StringReader(html)) {
        //Parse
        XMLWorkerHelper.GetInstance().ParseXHtml(mh, sr);
    }

    //Loop through each element
    foreach (var element in mh.elements) {
        //Loop through each chunk in each element
        foreach (var chunk in element.Chunks) {
            //Do something
        }
    }