[Petal] [REQ] Escape HTML entities

[Jean-Michel Hiver]

> I guess you know about this module:
> 
>   HTML::Entities
>   http://search.cpan.org/author/GAAS/HTML-Parser-3.30/lib/HTML/Entities.pm
> 
> I don't know if it supports XHTML or if would be of any use for
> this?

Mhhh... I suppose I could steal this module, and make it so that it
decodes any entity EXCEPT < > & " and &apos which
XML::Parser needs / knows about.

Also it'd be really nice if   was turned into its equivalent
Unicode non breaking space character...

=> TODO list :)