(insert witty pun about electrons here)
I've been thinking about adding Atom support to my feed parsing code. Made a few notes, not really done anything productive. The first obstacle is namespace support, and the second is xml:base (though they're both basically the same problem). Nothing too hard, I'll probably do it after I've made sure the RSS2 stuff works.
Then I need to decide if I need to parse Atom 0.3, the format that Blogger uses. From my point of view, it's not much more than supporting the same elements with a different namespace. I'll also need some code to look for format information in the HTTP headers, and sniff it from the XML otherwise.
And yes, I'm aware this is a post about Atom tagged "rss". Tough.
Note from the future: tag changed to "atom", let's do this the other way round. ;)
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