diff options
Diffstat (limited to 'internal/caldata/readings.go')
| -rw-r--r-- | internal/caldata/readings.go | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/internal/caldata/readings.go b/internal/caldata/readings.go index 3e46ccd..62ef1fc 100644 --- a/internal/caldata/readings.go +++ b/internal/caldata/readings.go @@ -2,6 +2,7 @@ package caldata import ( "sort" + "strings" "time" "github.com/lukaszkasprzak/lectio/internal/calendar" @@ -56,6 +57,9 @@ func Readings(sel calendar.Selection, layers []calendar.Layer, date time.Time, d // weekday cycle (I/II). Sunday-slugs and weekday-slugs are disjoint, so // trying both cycle suffixes is unambiguous. if sel.Form == "old" { + if r := efBVMSaturdayReadings(day); len(r) > 0 { + return r + } if r := TemporalReadings("old", day.Observed.Slug); len(r) > 0 { return r } @@ -85,3 +89,59 @@ func Readings(sel calendar.Selection, layers []calendar.Layer, date time.Time, d } return nil } + +// efBVMSaturdayReadings returns the Mass of Our Lady on Saturday, when that is +// the day's office. +// +// RG 78 keeps the office on a Saturday whose feria is IV class (see +// temporal_ef.go, which gives the day its white colour). RG 309(a) then says +// which Mass is said: "Missae de sancta Maria in sabbato ... iuxta temporum +// diversitatem" -- the Missal prints five formularies and the season selects +// among them. Without this the day was kept as Our Lady's but read the feria's +// Mass, so a Saturday in Septuagesima announced Our Lady and then read the +// parable of the labourers. +// +// Citations are colitur's, which verified each against both photographic scans +// of the 1962 Missal; see its lib/rites/rite_ef/lectionary_ef.ml, +// bvm_saturday_citations, for the per-formulary scan references. +// +// The Advent formulary is included and is STRUCTURALLY UNREACHABLE as the +// Saturday office: Advent has no IV-class ferias, so the office never falls +// there. It is kept because RG 309's subject is the Masses themselves, not +// only the days they land on -- the Mass exists -- and because a missing +// branch would silently fall through if the rank rules ever changed. +func efBVMSaturdayReadings(day calendar.LiturgicalDay) []calendar.Reading { + // The office, not merely the day: a Saturday IV-class feria that nothing + // outranked. A sanctoral feast that won the day keeps its own readings, so + // the observed slug must still be the temporal one -- which the office + // deliberately reuses rather than replacing (see temporal_ef.go). + if day.Weekday != time.Saturday || day.Observed.Rank != calendar.RankClass4 { + return nil + } + if !strings.HasPrefix(day.Observed.Slug, "ef-") || !strings.HasSuffix(day.Observed.Slug, "-saturday") { + return nil + } + first, gospel := "", "" + switch day.Season { + case calendar.Advent: + first, gospel = "Isa 7:10-15", "Luke 1:26-38" + case calendar.Christmas: + first, gospel = "Titus 3:4-7", "Luke 2:15-20" + case calendar.TimeAfterEpiphany: + // The Christmastide formulary runs on until the Purification (2 + // February), not merely to the end of Christmas Time. + if m := day.Date.Month(); m == time.January || (m == time.February && day.Date.Day() <= 2) { + first, gospel = "Titus 3:4-7", "Luke 2:15-20" + } else { + first, gospel = "Ecclus 24:14-16", "Luke 11:27-28" + } + case calendar.Easter_: + first, gospel = "Ecclus 24:14-16", "John 19:25-27" + default: // Septuagesima, Lent, Passiontide, Time after Pentecost + first, gospel = "Ecclus 24:14-16", "Luke 11:27-28" + } + return []calendar.Reading{ + {Part: "first", Citation: first}, + {Part: "gospel", Citation: gospel}, + } +} |