I'm trying to find a way to split a single RSS feed into separate feeds based on keyword matches.
Yahoo Pipes was my first thought, but I couldn't find a way to do it. Although Pipes has a split module, there is only one output module available for any pipe. So I can't see how I would ever get more than one feed from a pipe.
The whole point in doing this is to make a single dense feed much more manageable in Google Reader. (Hey Google: How about some Gmail-style filters?!)
[Clarification Start]
I envisioned a main feed coming in and then filters building 'sub-feeds' based on certain keywords. The catch is that I would subscribe to both the filtered main feed and the 'sub-feeds.' The filters decrease the number of items in the main feed. They are 'filtered off.' I would subscribe to the filtered main feed in order to watch for other sub-feeds that need to be pulled off in the future.
The main issue with setting up separate Pipes is that I would need to maintain filters for each sub-feed and then I would also have to duplicate those filters to apply the whole set to the main feed. It's doable, but not ideal. I may not have any other option.
[Clarification End]
My second thought was to possibly use Pipes to apply tags to the feed items hoping that Google Reader would honor those tags. This doesn't seem possibly either.
I took a look at MagpieRSS and Simplepie to consider rolling my own solution. I found plenty of documentation for merging feeds, but nothing along the lines of splitting feeds. My skills are pretty basic, so without a pretty specific tutorial, this may be out of my league.
If anyone has ideas, I'd be grateful. Thanks.
