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-rw-r--r--lib/kernel/liturgical_day.mli9
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/kernel/liturgical_day.mli b/lib/kernel/liturgical_day.mli
index a109251..f0ea3d9 100644
--- a/lib/kernel/liturgical_day.mli
+++ b/lib/kernel/liturgical_day.mli
@@ -20,6 +20,13 @@ type ('s, 'r) t = {
omitted : ('r Celebration.t * string) list;
(** with the reason, never silent -- Task 12's no-celebration-lost
invariant reads this *)
- citations : Citation.t list; (** always empty until Plan 4 *)
+ citations : Citation.t list;
+ (** The day's reading references, resolved by the rite's own
+ {!Rite.readings}. Empty for a rite whose lectionary is not built;
+ for EF, exactly one [First] and one [Gospel] on every day of every
+ year 1583..9999 -- asserted, not assumed, by {!Validate}'s own
+ ["citations"] / ["citations-unresolved"] checks. (This said "always
+ empty until Plan 4" until Task 10; the lectionary landed before
+ Plan 4 did, and the comment outlived its truth.) *)
}
[@@deriving sexp]