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-rw-r--r--lib/kernel/liturgical_day.mli7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/kernel/liturgical_day.mli b/lib/kernel/liturgical_day.mli
index be17d73..643097b 100644
--- a/lib/kernel/liturgical_day.mli
+++ b/lib/kernel/liturgical_day.mli
@@ -51,5 +51,12 @@ type ('s, 'r) t = {
(** Whether the Gloria in excelsis is said at this day's Mass --
{!Rite.t.gloria}, EF: RG 431-432. Same seam as [creed] in every
respect. *)
+ preface : Preface.t option;
+ (** Which preface is said at this day's Mass -- {!Rite.t.preface},
+ EF: RG 482-499. Same seam as [creed]/[gloria], but [option], not
+ a bare {!Preface.t}: see {!Rite.t.preface}'s own citation for why
+ -- [None] both for a rite that has not implemented the rule and
+ for a real day this engine resolves that has no Mass at all
+ (Good Friday). *)
}
[@@deriving sexp]