Recurrence Implementation

[ngradwohl]

I wrote a simple implementation to support recurring events
the most commonly used features and parameters, should work what is still missing is support for specifying lists of weekdays, months, ..
the parameter BYEASTER and BYWEEKNO and specifying a differnent weekstart day with WKST

since it would be possible to create infinite loops and out of memory errors with certain parameter sets , I also limited the maximum count of recurrences

[dferrazm]

Hi! Thanks for the PR and for the time. I'll take a look and let you know my thoughts.

[dferrazm]

Hey. I took a brief look and looks like you're in a good direction to add recurrences support for the lib.

I just think that the responsible to parse the recurrence rules from the ical content should be the role for the ical-go lib, which is currently being used.

Luckily, I admin admin rights in that repo as well, so perhaps we could start abstracting some of the core stuff by moving to there. (that repo is not in a good shape, lacking some tests etc, but it's usable).

What I imagine is that all the operations of parsing and calculating the recurrences (start and end time) could be done there.

So that we could access the recurrences through the resource by r.icalendar().Recurrences or something, which would be an array of recurrences structs, each with their own start and end time.

I'll take a look this week again and let you know.

[ngradwohl]

sure - if you need any help or something is unclear drop me a mail

[dferrazm]

Just to give you a heads up, I'm working on the ical lib side to adapt your code and add recurrences support. Only then we can use it here.