How to convert HTML to text keeping linebreaks

Question

How may I convert HTML to text keeping linebreaks (produced by elements like br,p,div, ...) possibly using NekoHTML or any decent enough HTML parser

Example:
Hello<br/>World
to:

Hello\n  
World  

Answer 1

Here is a function I made to output text (including line breaks) by iterating over the nodes using Jsoup.

public static String htmlToText(InputStream html) throws IOException {
    Document document = Jsoup.parse(html, null, "");
    Element body = document.body();

    return buildStringFromNode(body).toString();
}

private static StringBuffer buildStringFromNode(Node node) {
    StringBuffer buffer = new StringBuffer();

    if (node instanceof TextNode) {
        TextNode textNode = (TextNode) node;
        buffer.append(textNode.text().trim());
    }

    for (Node childNode : node.childNodes()) {
        buffer.append(buildStringFromNode(childNode));
    }

    if (node instanceof Element) {
        Element element = (Element) node;
        String tagName = element.tagName();
        if ("p".equals(tagName) || "br".equals(tagName)) {
            buffer.append("\n");
        }
    }

    return buffer;
}

Answer 2

w3m -dump -no-cookie input.html > output.txt