I have been considering something like this for a long time - to allow customization of Calendar behaviour through events (heavily used in the Symfony PHP framework and elsewhere).
Neat advantage of this solution compared to #81 is that it makes it easily possible to grant first Vespers to a celebration which wouldn't receive them per the standard logic of precedence. Most (if not all) other thinkable changes to the calendar logic are possible, some of them in multiple different ways.
Disadvantage is that it's now equally easy to turn a calendar in a complete mess which is hard to read and reason about. (As exemplified by implementation of the Ubi vero S. Ioannes Baptista patronus sit nationis vel dioecesis vel civitatis aut
communitatis religiosae... code example.)
This is an alternative way to fix #80.
I have been considering something like this for a long time - to allow customization of
Calendarbehaviour through events (heavily used in the Symfony PHP framework and elsewhere).Neat advantage of this solution compared to #81 is that it makes it easily possible to grant first Vespers to a celebration which wouldn't receive them per the standard logic of precedence. Most (if not all) other thinkable changes to the calendar logic are possible, some of them in multiple different ways. Disadvantage is that it's now equally easy to turn a calendar in a complete mess which is hard to read and reason about. (As exemplified by implementation of the Ubi vero S. Ioannes Baptista patronus sit nationis vel dioecesis vel civitatis aut communitatis religiosae... code example.)