diff options
Diffstat (limited to 'internal/calendar/temporal_ef.go')
| -rw-r--r-- | internal/calendar/temporal_ef.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/internal/calendar/temporal_ef.go b/internal/calendar/temporal_ef.go index 0cd4b41..4ac446a 100644 --- a/internal/calendar/temporal_ef.go +++ b/internal/calendar/temporal_ef.go @@ -372,6 +372,32 @@ func firstSundayAfterEpiphany(y int) time.Time { return d } +// efBaptismOmitted reports whether 13 January's Commemoration of the Baptism of +// Our Lord is omitted entirely this year because the feast of the Holy Family +// falls on that date. The Holy Family Mass propers carry the rule verbatim, in +// both photographic scans of the 1962 Missal: +// +// "Si festum S. Familiae occurrerit die 13 ianuarii, Missa dicitur de festo +// S. Familiae, sine commemoratione Baptismatis D.N.I.C., et sine +// commemoratione dominicae." +// +// The Baptism does not merely lose the day -- it is omitted, "sine +// commemoratione" -- which is why this drops the candidate outright instead of +// letting precedenceEF rank it and leave it in Others. +// +// Structurally the same answer RG 91 entry 14 gives ("Festa Domini II classis": +// primum mobilia, deinde fixa -- the movable Holy Family ahead of the fixed +// Baptism), but the propers' rubric is the direct authority for the omission, +// and it is the half that RG 91 alone would not settle. +// +// Live in 7 of the 46 years 2005-2050 (2008, 2013, 2019, 2030, 2036, 2041, +// 2047); lectio kept the Baptism on every one of them and never observed the +// Holy Family Mass there at all. +func efBaptismOmitted(date time.Time) bool { + return date.Month() == time.January && date.Day() == 13 && + sameDay(date, firstSundayAfterEpiphany(date.Year())) +} + // thirdSundayOfSeptember returns the third Sunday in September of year y. func thirdSundayOfSeptember(y int) time.Time { d := time.Date(y, time.September, 1, 0, 0, 0, 0, time.UTC) |