request: support RSCALE/SKIP

[arolson101]

for dealing with repeating events on the 31st or 30th or 29th, there is an extension to RRULE called RSCALE (and SKIP): https://tools.ietf.org/html/rfc7529

It would be very nice if rrule supported this extension

[Ionut-Milas]

any update on this ?

[pxljoy]

any update on this?

[nicholaszuccarelli]

+1 any updates?

[Rishabh-Kapri]

Any updates?

[pcreehan]

I'll add the 2022 addition to this one...Any updates?

[kjhangiani]

2023 now - we are getting hit by this in production. any update?

[erquhart]

@davidgoli this is the most upvoted issue on the repo. Curious if this may happen, or if there's a common workaround for supporting bymonthday intervals of 29th/30th/31st?

Thanks for a great lib, this is really the only reputable js package out there for rrule support.

[dudilugasi]

+1

[erquhart]

@kjhangiani for what it's worth, I expect RSCALE will be more of a nicety than a necessity. I would love to have it directly supported in the lib, but logic to compensate has been pretty straightforward.

[Cmacu]

FYI, for anyone curious on a workaround you can detect that the day of the month selection is 29, 30 or 31st and handle it via the following rule: bymonthday: [29,30,31] + bysetpos: -1

Example from the demo: