Java Utililty Methods HTML to Text

List of utility methods to do HTML to Text

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Description

The list of methods to do HTML to Text are organized into topic(s).

Method

Stringhtml2text(final String html)
Converts HTML to plaintext. 
Document document = Jsoup.parse(html);
document.select("br").append("\\n");
document.select("p").prepend("\\n\\n");
return document.text().replaceAll("\\\\n", "\n");
Stringhtml2text(String html)
htmltext 
return Jsoup.parse(html).text();
Stringhtml2text(String htmlStr)
Converts html content to text. 
if ((null == htmlStr) || (htmlStr.isEmpty())) {
    throw new IllegalArgumentException("The input html string was null or empty");
return Jsoup.parse(htmlStr).text();
Stringtext(Element e)
Fetches the text of an element but preserves newlines. 
checkNotNull(e, "e should not be null.");
e.select("br").append("\\n");
e.select("p").prepend("\\n\\n");
return e.text().replaceAll("\\\\n", "\n").trim();
Stringtext(Element element)
text 
final StringBuilder accum = new StringBuilder();
new NodeTraversor(new NodeVisitor() {
    public void head(Node node, int depth) {
        if (node instanceof TextNode) {
            TextNode textNode = (TextNode) node;
            String str = textNode.getWholeText();
            str = WHITESPACE_BLOCK.matcher(str).replaceAll(" ");
            accum.append(str);
...
StringtextOf(final Element el)
text Of 
final StringBuilder accum = new StringBuilder();
new NodeTraversor(new NodeVisitor() {
    public void head(final Node node, final int depth) {
        if (node instanceof TextNode) {
            TextNode textNode = (TextNode) node;
            accum.append(textNode.text());
        } else if (node instanceof Element) {
            Element element = (Element) node;
...
ElementtoElement(String html)
Converts an HTML string to an HTML element. 
return toElement(html, null);
ElementtoHtmlByHtml(String html)
insert html tag in the top
Beware: It's include head and body tag too 
 input: 
I am Java programmer
 output:    
I am Java programmer
The output, can managing by #newOutputSetting(Document.OutputSettings) 
return new Element("html").append(html);
ElementtoHtmlByPlain(String plainText)
same work with #toHtmlByHtml(String) but think input parameter as plain text (so meaning if there have charactor that cannot convert to html it's will change to other)
Example: 
 input: 
I am Java programmer
 output:    <div>I am <code>Java</code> programmer</div>   
Element html = new Element("html");
Element head = new Element("head");
Element body = new Element("body").text(plainText);
return html.prependChild(body).prependChild(head);