I recently got a reasonable size list of blog URLs. What I wanted was to import all these into a feed reader (via OPML). There seemed to be a lack of conversion scripts for batch URL->find RSS link->feed reader import file (I may be wrong, please let me know if I am , so I made one in PHP. I guess this is like an automatic-blogroller. I have just used this as a command line script, I’m not recommending you use this in ‘the wild’ as one might say, I have made little concession to security as I had a trusted list of URLs.

Extract the properties of content from OPML files. This class can be used to extract the properties of content listed in OPML files. It retrieves local or remote OPML file and parses it to extract the URLs of the listed content into an array as well all other the properties of each content entry such as: name, target, description, RSS feed, creation date and content type (RSS, HTML, etc..)...

OPML (Outline Processor Markup Language) is an XML format for outlines. Originally developed by Radio UserLand as a native file format for an outliner

I am 99.9% confident that I’ve spent many hours trying to do in a complex way something that javascript (perhaps with jquery) lets us do with a single line of compressed code. But, I couldn’t find that line. Besides, I’m a hobbyist which means the puzzle is usually more fun than the solution. But this one drove me crazy. I’m trying to read an OPML file. OPML is an instance of XML designed to record outlines. I found plenty of scripts online (javascript and php) that would read the contents, but none that would tell me the indentation level of each line. I’m sure there’s some simple way of figuring that out, but it beat the heck out of me. So, I finally found some javascript by Vivin Pallath to which I could add a couple of lines (mainly by trial and error) to record indentation info.