While trying to implement this with XML::SAX::Builder, I ran into a problem.

Parsing a SAX stream looks like this: 

 <p>
   <i>
       Italics
       <b> plus bold </b>
   </i>
 </p>

  start_document 
  start_element : p
  start_element : i
  characters    : Italics
  start_element : b
  characters    : plus bold
  end_element   : b
  end_element   : i
  end_element   : p
  end_document

[download]

The HSS stream looks like this: 


  start_document
  start_element : b
  content       : plus Bold
  end_element   : b
  start_element : i
  content       : Italics
  content       : <b>plus Bold</b>
  end_element   : i
  start_element : p
  content       : <i>Italics <b>plus Bold</b></i>
  end_element   : p
  end_document

[download]

The reason for that, is my tag callbacks, which give you the ability to change a tag and its contents, delete the tag, and or its contents etc. The callback needs access to the contents/child nodes.

So the tree is built from the leaves down, rather than in the traditional manner.

I've implemented a solution, which I have posted here: RFC: HTML::StripScripts::LibXML

Clint

In reply to Re^2: Returning an XML::LibXML::DocumentFragment from HTML::StripScripts by clinton
in thread Returning an XML::LibXML::DocumentFragment from HTML::StripScripts by clinton

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