This is regex golf[1]: /r/ matches the eight fall and winter months but not the four summer months (at least by some definition of the seasons based on academic

This is regex golf[1]: /r/ matches the eight fall and winter months but not the four summer months (at least by some definition of the seasons based on academic sessions or oysters or whatever). [1] https://www.xkcd.com/1313/ https://www.xkcd.com/1313/