Re: iCal parsing and processing

Hm. Thanks, but it looks like that's all in Python. I'm not a parcel tongue so that wouldn't be much use to me in a PHP app. :-) Thanks though. --Larry Garfield On Tuesday 25 May 2010 06:43:30 pm Jason Pruim wrote: > Hi Larry, > > Take a look at: http://trac.calendarserver.org/ > > It's Apple's open source page which includes their iCal web server... > Maybe something can be pulled from that? Just something to think > about and see if it helps :) > > Also... Not sure if you've looked at the CalDav protocol but that is > what it basically runs off of so if you haven't checked it out, you > might get some better results :) > > On May 25, 2010, at 2:10 PM, larry@garfieldtech.com wrote: > > Hi folks. I am looking for a good iCal processing library (open > > source / GPL compatible). Unfortunately, everything I've been able > > to find so far is half-assed, incomplete, buggy, or so horribly > > designed that I'd be embarrassed to use it (or several of the > > above). I was hoping someone could recommend one that actually > > works. I'd prefer an OO interface as it seems a natural fit, but at > > this point I'll settle for whatever works. > > > > I am not looking for an application with UI and form integration and > > stuff. I just want a working stand-alone parser. (If it can be > > ripped out of something more complete, that's fine.) > > > > My needs: > > 1) Given raw data (provided by a user form that I can already > > handle), construct iCal VEVENT information including RRULEs and > > EXRULEs. > > 2) Given a VCALENDAR / VEVENT object, generate the appropriate iCal > > text string that I can write to a file or return to the browser with > > the appropriate mime header. > > 3) Given a VCALENDAR / VEVENT object with RRULEs and EXRULEs in it, > > be able to say "give me the start/end dates of the next X > > occurrences from some date" or "give me all the start/end dates of > > occurrences until date Y". > > > > What I've found so far: > > > > http://www.kigkonsult.se/iCalcreator/ - This is the best > > I've found > > so far, and it's what I'm using now. It's missing requirement #3, > > though, as near as I can tell. Actually if I could add that > > functionality to it without too much trouble I'd probably stick with > > it, but it's non-trivial functionality. It's also PHP 4 OO, but I > > can deal. > > > > http://phpicalendar.net/ - This claims to do #3, I think, > > but it's > > integrated into a web app. The code for it is also horrific, as the > > entire parser is build on include files that rely on global > > variables without using any functions. The security implications of > > that alone scare me to death to say nothing of side effects and > > stability. > > > > http://code.google.com/p/qcal/ - Documentation is sorely > > lacking, as > > it is listed as "pre-alpha, real alpha to be released in January". > > That post was made in December, and there's still no "real > > alpha". :-) So I can't really tell if it does what I need or not. > > > > A quick search turned up nothing in PEAR, and Zend Framework has > > only a proposal from 2 years ago, not an actual library. > > > > Any others I don't know about? This seems like an area that cries > > out for a good standard library, but as of yet I haven't found one > > that works. Help or pointers would be much appreciated. > > > > --Larry Garfield >