diff options
Diffstat (limited to 'test/test_differential.ml')
| -rw-r--r-- | test/test_differential.ml | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test/test_differential.ml b/test/test_differential.ml index 8c1dd8d..2f63df6 100644 --- a/test/test_differential.ml +++ b/test/test_differential.ml @@ -1096,6 +1096,36 @@ let rg33_vigil_slugs = [ "vigil-of-st-lawrence"; "vigil-of-the-nativity-of-st-john-the-baptist"; "vigil-of-sts-peter-paul" ] +(* C40 -- the calendarium's own bissextile (leap-year) footnote (February, + docs/research/LT.txt:5011-5014; see rite_ef/temporal_ef.ml's + [bissextile_fixed_key] for the full citation and mechanism), implemented + 2026-08-22. lectio builds no such shift at all (confirmed directly + against the fixture: Matthias sits at 24 February and Gabriel of Our Lady + of Sorrows at 27 February in EVERY leap year the 2005-2050 fixture + covers, 11 of them), so every leap year now diverges on the two shifted + civil days: colitur vacates 24/27 February (Matthias/Gabriel move away) + and occupies 25/28 February instead, while lectio keeps the pre-shift + assignment on both. + + Four shapes, one mechanism -- OLD position vacated (colitur no longer + matches lectio's still-there Matthias/Gabriel) and NEW position occupied + (colitur now shows a saint lectio's own unmoved date does not) -- each + checked by NAME on both sides, the same identity discipline C39 and + C6/C14 already apply, not merely a diff-set shape: a coincidental + same-shape diff on an unrelated 24/25/27/28 February slug would not match + any of the four literal-slug conjuncts below. *) +let is_bissextile_shift_row (l : row) (c : row) ~month ~day = + month = 2 + && Date.is_leap (year_of_date c.date) + && ((day = 24 && String.equal l.slug "matthias" && not (String.equal c.slug "matthias")) + || (day = 25 && String.equal c.slug "matthias" && not (String.equal l.slug "matthias")) + || (day = 27 + && String.equal l.slug "gabriel-of-our-lady-of-sorrows" + && not (String.equal c.slug "gabriel-of-our-lady-of-sorrows")) + || (day = 28 + && String.equal c.slug "gabriel-of-our-lady-of-sorrows" + && not (String.equal l.slug "gabriel-of-our-lady-of-sorrows"))) + let layer_c_reason (l : row) (c : row) diffs = let m = month_of_date l.date and d = day_of_date l.date in if diffs = [] then None @@ -1158,6 +1188,8 @@ let layer_c_reason (l : row) (c : row) diffs = && (not (List.mem c.slug rg33_vigil_slugs)) && subset diffs [ Slug_f; Rank; Colour_f; First_f; Gospel_f ] then Some "C39" + else if is_bissextile_shift_row l c ~month:m ~day:d && subset diffs [ Slug_f; Rank; Colour_f; First_f; Gospel_f ] + then Some "C40" (* C25 -- CLOSED, BVM Saturday Mass (2026-08-17), predicate removed: 0 rows. Its days are unoccupied IV-class Saturdays, so they carry RG 78's office and now RG 309(a)'s Mass for it, which answers before step 3's walkback |