diff options
Diffstat (limited to 'internal/calendar/calendar.go')
| -rw-r--r-- | internal/calendar/calendar.go | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/internal/calendar/calendar.go b/internal/calendar/calendar.go index 19c0efb..2d8611a 100644 --- a/internal/calendar/calendar.go +++ b/internal/calendar/calendar.go @@ -250,6 +250,31 @@ func transferIfImpeded(cel Celebration, when time.Time, sel Selection) time.Time // ANY I- or II-class day (RG 96's own wider "not I or II class" text) -- // e.g. the Visitation, 2 July, blocks the Precious Blood's transfer off 1 // July in 2011, and 3 July's ordinary Sunday blocks it a second time. +// +// KNOWN GAP, not fixed here (recorded per RG 95, so the next person does not +// have to rediscover it from scratch): this function resolves ONE +// candidate's own transfer walk in isolation. It has no way to notice that a +// SECOND, separately-transferred I-class candidate has landed on the exact +// same destination day. Concretely: St Joseph (19 March) and the +// Annunciation (25 March) can both be walked, independently, to the Monday +// after Low Sunday in the same year (2008, 2035, 2046 -- e.g. 2035-04-02: +// `annunciation-of-the-blessed-virgin-mary … +joseph-spouse-of-the-bl-virgin-mary`). +// RG 95 grants the right of translation "solummodo festis I classis" (to +// I-class feasts ONLY) -- so BOTH have that right, and the day they land on +// together is itself an ordinary occurrence collision RG 97/98 governs (the +// higher table position is kept, the other transfers FURTHER): this +// function does not re-walk the loser, it lets pickEF's plain alphabetical +// slug tie-break settle it, so the loser is merely commemorated instead of +// continuing its own walk one more day. RG 98 itself supplies the missing +// determinism rule for the tie this collision even needs: "in paritate +// autem Officium prius impeditum praecedit" -- at equal table position, the +// office impeded FIRST takes precedence -- which is chronological (Joseph, +// impeded on the 19th, before the Annunciation's own walk begins on the +// 25th) and may favour Joseph over pickEF's alphabetical fallback. Neither +// RG 98's tie rule nor the re-walk RG 97 implies is implemented; fixing this +// properly means resolving occurrence between two ALREADY-TRANSFERRED +// candidates, not a single one, which is out of this function's current +// shape. func transferIfImpededEF(cel Celebration, when time.Time, occupiedByClass1, occupiedByClass1Or2 func(time.Time) bool) time.Time { if when.Month() == time.November && when.Day() == 2 && when.Weekday() == time.Sunday && strings.Contains(cel.Slug, "all-souls") { |