The ParsedFeedURLEditPlugIn edits a feed after it has been
parsed, adjusting the URLs in the feed (i.e., the item URLs and the
channel, or feed, URL) according to various configuration parameters.
A PersistentFeedData object contains feed cache data and related
metadata for a single feed (or channel), in a form suitable for saving to
and restoring from an external store.
A PersistentFeedItemData object contains data and metadata about
a perticular item within a feed, in a form suitable for saving to and
restoring from an external store.
This interface defines the methods that must be supported by plug-ins
that wish to be invoked right after curn finishes loading its
configuration file.
This interface defines the methods that must be supported by plug-ins
that wish to be notified just before curn sends a parsed feed to an
OutputHandler.