Re: [Htmlparser-user] HTML parser for HTML translation

[Somik R. <so...@ya...>]

> What I want to do is to parse HTML code and 
> translate the content and 
> the put the translated text/content  back into the
> original HTML structure.
> 
> Does this HTML parser suitable of doing this kind of
> task ?

By translating content, I guess you mean translation
of meaningful text data (not tags). That is easily
possible. You can look at the StringExtractor example
(org.htmlparser.parserapplications) or the
StringFindingVisitor (org.htmlparser.visitors).

The simplest approach is to write your own visitor -
StringTranslatingVisitor, that runs through the entire
html, and wherever it finds strings, these are
translated as per your wishes.

Here is a sample program :
import org.htmlparser.HTMLRemarkNode;
import org.htmlparser.HTMLStringNode;
import org.htmlparser.tags.HTMLEndTag;
import org.htmlparser.tags.HTMLTag;

public class StringTranslatingVisitor extends
HTMLVisitor {
	StringBuffer htmlData = new StringBuffer();
	
	public void visitStringNode(HTMLStringNode
stringNode) {
		String yourStuff="";
		// Perform modifications here.
		// finally, add to htmlData
		htmlData.append(yourStuff);
	}
	
	public void visitEndTag(HTMLEndTag endTag) {
		htmlData.append(endTag.toHTML());
	}

	public void visitTag(HTMLTag tag) {
		htmlData.append(tag.toHTML());
	}

	public String getHtml() {
		return htmlData.toString();
	}
	public void visitRemarkNode(HTMLRemarkNode
remarkNode) {
		htmlData.append(remarkNode.toHTML());
	}

}

To use this, create your parser -
HTMLParser parser = new
HTMLParser("http://someurl.com");
parser.registerScanners();
StringTranslatingVisitor visitor = 
   new StringTranslatingVisitor();
parser.visitAllNodesWith(visitor);
System.out.println(visitor.getHTML());

Regards,
Somik

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