Advanced link filter

This filter parses HTML links (excluding mailto). It may adds some REL attributes to external links, optionnally in conjonction with a javascript behavior that open the URL in a new window if the REL attribute contains external.

It is possible to define a list of domains that should be considered as internal, using wildcard if necessary.

For links to current page, a class to be added may be defined. Note that it disables the cache for the current filter format.

Any interesting feature or idea for processing links is welcome.