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* kernel+rite-ef: correct stale plan-relative deferrals (item 7, part 2)Lukasz Kasprzak2026-08-123-8/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several comments described work as "arriving with Plan 3" or "waiting for Plan 3" that either shipped without it or refer to the wrong future plan number, all now false in ways that would mislead the next reader: - temporal_ef.ml (two places) and precedence_ef.ml said the Major Litanies (25 April, RG 80) "arrive with Plan 3's sanctoral". Plan 3 shipped, in this branch, without them; register §6 tracks this as a plain open item with no plan committed to build it, and now says so. - temporal_ef.ml said the Sacred Triduum's "own named offices are a Plan 3 sanctoral addition". Wrong on two counts: Plan 3 shipped without adding them, AND a proper office for I-class FERIAS was never a sanctoral matter in the first place (RG 21 defines "feria" to exclude Sundays/feasts, not the reverse). 2026-04-02/03/04 still resolve to the ordinary Passiontide ferial fallback's own generic slugs (ef-passiontide-2-{thursday,friday,saturday}), confirmed against real output; register §6 now records this as its own open item. - temporal_ef.ml said the Rogation-Wednesday commemoration (Ascension Vigil day, entry 21) "waits for RG 108-111" -- both the precedence framework and RG 108-111 exist now; the Wednesday's own commemoration is still never constructed, but for a different, still-real reason (no candidate is wired for it), not a forward dependency. Fixed at both of this comment's two occurrences in the file. - vocab.ml/vocab.mli's `seasons` field doc said "Validate's contiguity check reads this" -- false since validate.ml's "seasons" check switched to Rite.t.season_runs in this branch (rite-supplied, to support a season appearing in more than one run, which the modern form's Ordinary Time needs and EF does not). - vocab.ml/vocab.mli's `ranks` field doc said "it is not a precedence relation until Plan 3 defines one" -- Plan 3 did define one (RG 111's dignity ordering), but as its own small, separately-hardcoded function in precedence_ef.ml, not one derived from this field; corrected to say so precisely rather than leaving a forward-looking claim unresolved. - The lectionary bootstrap (reading citations, Liturgical_day.t's own `citations` field) is called "Plan 3" at slug.ml, vocab_ef.ml, and three places in temporal_ef.ml, but "Plan 4" at liturgical_day.mli (whose own doc comment -- "always empty until Plan 4" -- is the authoritative one: the SANCTORAL bootstrap is Plan 3 and shipped; the LECTIONARY bootstrap is a separate, later Plan 4). All six corrected to say Plan 4, cross-referencing the Plan 3/4 distinction at the first (slug.ml) occurrence so the reasoning is not duplicated six times. No behaviour change: every edit here is a comment/documentation correction. Verified byte-identical `colitur day` output across 1583, 1900, 1902, 2008, 2011, 2026, 2038, 9999. 259/259 tests green.
* docs+test: small factual corrections (item 7, part 1)Lukasz Kasprzak2026-08-121-1/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Six independent, small corrections found during the final review: - dune (workspace root): the comment said the stanza used "(:standard)" to preserve dune's default `default` alias target; the stanza actually spells that out explicitly via (alias_rec install). Comment now matches the code. - test_validate.ml's test_easter_extremes asserted `List.length ys = 2` where an identity check was called for -- the comment already named 1598 and 1666, but nothing confirmed extreme_years() found THOSE two rather than some other pair with the right cardinality. Now asserts the identities directly (the project's "cardinality where identity was required" vacuity flavour, per the review). - test_oracle.ml and expected-divergences-missalemeum.sexp both claimed "one entry (M13) is [verdict open]" -- M11 is open too (its own verdict changed from colitur to open in fix round 1); both now say "two entries (M11 and M13)". - expected-divergences-missalemeum.sexp's M2 note attributed `band` to temporal_ef.ml; `band` is precedence_ef.ml's own function. - lib/kernel/precedence.mli documented `dropped`/`admit`'s physical- equality obligation nowhere -- it lived only in one rite's own module (Rite_ef.Precedence_ef.admit's doc comment), but this signature is what an author of the next rite actually reads. Added the obligation here, cross-referencing the EF instance as precedent, not the only source. - README's opam install line omitted sexplib and ppx_sexp_conv (both in dune-project's own depends; `dune build` fails without them for a contributor following the README verbatim) and documented only `colitur easter`, though `temporal` and `day` both exist and are the more useful entry points. Fixed both. No behaviour change: comment/doc/test-assertion corrections only (the easter-extremes fix strengthens an assertion, it does not change what passes). Verified byte-identical `colitur day` output across 1583, 1900, 1902, 2008, 2011, 2026, 2038, 9999. 259/259 tests green.
* kernel(validate): fold in Plan 2's carried guardsLukasz Kasprzak2026-08-122-12/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three carried items from Plan 2's parked rulings, closed: 1. Slug uniqueness moves from a 200-sample QCheck property scoped to one rite (test_temporal_ef.ml) into Validate's own "slugs" check, so every consumer gets it. The resumed-Sunday exemption that property carried is dropped, not weakened elsewhere: Plan 2 verified zero duplicate slugs domain-wide (all 8 416 years), and by construction a resumed Sunday only ever backfills a week number Septuagesima cut short that same liturgical year, so it can never repeat a number that year's own January Sundays already used. The now-redundant property and its is_resumable_sunday_slug helper are removed from test_temporal_ef.ml; test_validate.ml's own domain-wide property covers the same ground for every consumer. 2. The anchors-erosion guard (Plan 2: deleting entries from a rite's anchors list left the whole suite green) is implemented, but not in Validate. Which of a rite's named days are Easter-derived is knowledge only the rite's own `named` function has; Rite.t deliberately exposes only `temporal` and `anchors`, never `named`, so a rite-agnostic Validate has no ground truth to check anchors' completeness against. Hardcoding an Easter offset, or even Easter itself, would smuggle Western/Gregorian-specific knowledge into code meant to also serve a future Julian-reckoning rite; rediscovering "named-ness" structurally from `temporal` alone is unsound for EF, since most ordinary Sunday/feria slugs from Septuagesima onward are also constant-offset-from-Easter by construction. The guard is therefore EF-specific and lives in test_temporal_ef.ml, discovering the Easter-derived slug set mechanically (scanning a window around Easter and keeping whatever `named` answers Some for) rather than hand-copying either named's or anchors' own offset list, then asserting completeness against the real anchors for the domain's Easter extremes (1598, 1666) plus an ordinary year. A negative fixture proves the guard has teeth, matching Plan 2's exact regression (anchors missing "ef-ascension" reports it, and only it, as missing). 3. test_validate.ml's extreme_years comment claimed 1818/2038; verified against Computus.gregorian_easter directly, the domain's actual Easter extremes (1583..2500) are 1598/1666. Corrected. Verification: the full 1583..9999 domain sweep (233 tests via dune test's 200-sample default, plus a manual full sweep) reports exactly one failure -- the known, already-pinned year-9999 season-truncation case -- and zero occurrences of the new "slugs" check anywhere in the domain. Deleting "ef-ascension" from the real anchors list (reproducing Plan 2's regression directly) is caught immediately by the new EF test and, confirmed empirically, invisible to Validate's own full property sweep -- direct evidence for why item 2 cannot live in Validate.
* kernel(validate): resolution invariantsLukasz Kasprzak2026-08-122-4/+174
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Widen Validate.run to take the rite's sanctoral layer alongside the rite itself (Calendar.year needs both), and add five checks over the fully resolved liturgical year, on top of the existing temporal-only pass: - observed: a day's observed celebration never also appears among that same day's own commemorations/omissions. - lost: no sanctoral entry is silently dropped. Per slug, the number of times it is actually sighted (observed + commemorations + omitted, summed over the year) must never fall below the number of times its own Date_spec resolves within the year's span -- also fires if resolving the year raises at all, the most total form of loss. - duplicated: the same per-slug count must never exceed the number of Date_spec resolutions either. Deliberately NOT "no slug appears twice": a fixed date can legitimately resolve twice in the ~20% of liturgical years whose 371-day span reaches it on both ends (30 November/St Andrew is the worked example in validate.mli). - unconverged: no day's omitted reason indicates Calendar's placement pass hit its round guard before reaching a fixed point. - admission: the rite's own rules.admit is a fixed point on what it already admitted -- the rite-agnostic form of "the admission limit was not exceeded" available without embedding a rite's own numeric caps (RG 111's, for EF) into kernel code. Each check has a dedicated negative fixture in the synthetic rite (test_validate.ml), hand-traced against Calendar's actual resolution mechanics before writing the assertion, and verified to fail for the right reason against the code before this change. One pair (unconverged/duplicated) is not fully independent: hitting the round guard genuinely also trips duplicated, a real consequence of Calendar's own accounting once a candidate is simultaneously sighted at its permanent natural date and wherever the last placement round left it -- documented in guard_rules's own comment, not papered over. test_validate.ml's ef_rite/run now use the real Rite_ef.context and the real bootstrapped data/ef layer (Precedence_ef and the sanctoral bootstrap did not exist when this scaffolding was first written) rather than the earlier placeholder rules. Validate is clean across the whole 1583..9999 domain against real EF data except the one already-documented year-9999 truncation case (test_year_9999_does_not_raise).
* cli: colitur day <year> dumps resolved liturgical daysLukasz Kasprzak2026-08-121-1/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Assembles Rite_ef.context (lib/rites/rite_ef/rite_ef.ml[i]): temporal, anchors and vocab from Temporal_ef; rules from Precedence_ef's band, disposition and admit; season_runs = Vocab_ef.seasons; transfer_target newly implemented here. transfer_target (RG 96): the next following day that is not I or II class, with the Annunciation's own exception (Monday after Low Sunday). Terminates by a structural step bound on its internal search, independent of Calendar's own round guard, which bounds rounds across a year, not one call's walk; documented as an obligation on rite.mli's transfer_target field, which did not previously state it. Fixes the vigil-naming mismatch Task 7's review predicted: the sanctoral bootstrap names its vigils with a vigil-of-X prefix (lectio's own convention), while Precedence_ef's is_vigil only recognised the temporal cycle's own X-vigil suffix. Both are now recognised, fixing RG 91 entries 21/26 and RG 33's vigil omission for the four affected celebrations. Verified by unit test and by mutation-testing the fix (reverting it fails exactly the new rows) and against real output across several years. Suppresses data/ef/sanctoral.sexp's vigil-of-christmas via a new overlay, data/ef/adjustments.sexp: it is the same celebration as the temporal cycle's own ef-nativity-vigil, both dated 24 December. colitur day <year>: one line per civil-year day, temporal and sanctoral fully resolved through Layer, Overlay, Precedence_ef and Calendar -- the first CLI path exercising the whole Plan 3 pipeline against real data. Verified the All Souls transfer chain (Tasks 7-8-11) end to end against real output for both a Sunday year (2025, lands on 3 Nov) and a non-Sunday year (2026, observed directly on 2 Nov).
* kernel(calendar): fix multi-departure loss, band-order gap, off-array targetsLukasz Kasprzak2026-08-114-52/+154
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Four findings from Task 6 review, addressed on top of f15e44d. 1. transferred_out was a single Date.t option, so when RG 97-98 collides three or more feasts on one date (more than one loser), only the last one Hashtbl.iter happened to visit survived -- a genuinely lost move, and which one survived depended on OCaml's hash seed (OCAMLRUNPARAM=R), an environment read a kernel invariant forbids. RG 97-98 says coinciding feasts transfer "in order" -- plural -- so the type was wrong, not the fixture: transferred_out is now (Celebration.t * Date.t) list. transferred_in stays a single option, deliberately: a day receives at most one arrival (RG 96 sends each departure to the next non-I/II-class day, and the first to arrive occupies it). The per-day list is canonicalised (sorted by target date, then slug) after accumulation, the same fix layer.ml already applies to its own date-bucket index and for the same reason. Verified clean across 15 runs under OCAMLRUNPARAM=R; disabling the canonicalisation step showed the raw order genuinely flip between seeds, confirming the fix is load-bearing. 2. Every deferred candidate in the fixture was the same rank, so compare_deferred's band branch was unreachable and reversing it broke nothing -- the RG 97-98 test was pinning slug order, not band order. The fixture now has three ranks (Hi1 outranks Hi2, both transfer, both outrank Lo), with slugs chosen so band order and slug order disagree. Reversing the band comparison now fails the test on "higher-band loser claims 2 Feb first", received the wrong slug instead. 3. A transfer_target free to name any date could place a candidate outside the liturgical year's own start/stop bounds: invisible to year/build_day, so it would be observed nowhere and, since its origin's re-resolution would report it as settled, omitted nowhere either -- genuinely gone, contradicting calendar.mli's "never silently dropped". place_transfers now checks the range on every placement and routes an out-of-range one to a permanent-exclusion table instead of assignment, with its own cited omitted reason. 4. Precedence.resolve folds Transfer and Repose into one deferred case, and place_transfers routed all of it through transfer_target (RG 96's search), which is only correct for Transfer. Repose is RG 100-102's repositio, a distinct rubric this module does not implement. Documented rather than split into a second mechanism: nothing in the EF ruleset returns Repose (design spec section 1.3, "declared, not exercised"), so the gap is latent, not a live bug. Two new tests (origin records every departure; transfer target outside year is recorded not lost); the RG 97-98 test's fixture and assertions rewritten for finding 2.
* kernel(calendar): place transferred celebrations (RG 96-98)Lukasz Kasprzak2026-08-114-34/+277
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Calendar.year now runs a placement pass after resolving every day: each deferred candidate (RG 95's I-class-only right of translation, via Precedence's Transfer disposition) is placed on the next day the rite's new Rite.t.transfer_target names as admissible, transferred_in/out are set on the two ends of the move, and the whole year is re-resolved to a fixed point, bounded by a hard max_transfer_rounds = 64 guard. transfer_target is rite-supplied rather than a generic search Calendar drives itself: RG 96's 'not I or II class' is not derivable from band or disposition alone (RG 91's own table lets a universal I-class feast outrank an ordinary Sunday in a raw contest, yet RG 96 forbids landing a translation there regardless), and the search's starting point is rite-specific too (the Annunciation exception). It takes an occupant callback exposing what Calendar currently resolves as observed on any date, so the rite never has to re-implement occurrence resolution. Two correctness properties drove most of the design: - A candidate's permanent natural loss at its own origin (the layer entry never moves) is rediscovered every round; left unfiltered this oscillates a placed candidate between two dates forever, since its own rank makes it look 'occupied' to a fresh search from its origin. Both the round loop's gather and the final per-day omitted accounting filter this out, keeping only sightings that are either brand new or losing at a candidate's *current* target (a fresh RG 97-98 bump). - RG 97-98's sort has to actually decide something, not just happen to agree with Precedence.resolve's own tie-break next round: a claimed-this-round overlay lets earlier-processed candidates in one round block later ones in the same pass, so two coinciding I-class feasts land on consecutive admissible days in the one round they collide, in band order. Also folds in Task 5's review finding: year_bounds clamps y to [1582, 9999] once, up front, rather than guarding start and stop independently (each guard only ever covered one of the two rite.year_start calls, leaving year 999 and year 100000 each able to call it out of domain through the other branch).
* kernel: carry omitted celebrations on Liturgical_day.t, reason and allLukasz Kasprzak2026-08-114-11/+29
| | | | | | | | | | | | | | | | | | | | | | | Precedence.resolution already tracked what happened to every losing candidate -- commemorated, deferred, or omitted with a reason -- but Liturgical_day.t had nowhere for the deferred and omitted buckets to land, so Calendar dropped them at the door. Task 12's no-celebration-lost invariant needs to read that accounting off the day result itself, not re-resolve every day to reconstruct it, so a reason recorded nowhere is not recorded. Add Liturgical_day.omitted : ('r Celebration.t * string) list, after transferred_out and before citations. Calendar.resolve_day now folds resolution.omitted (Precedence's own native omissions, reasons intact) and resolution.deferred (mapped to "deferred: transfer placement not yet implemented (Task 6)") into it. Adds a full-day accounting test against the whole Calendar pipeline: four colliding sanctoral entries plus the day's feria, checked as a slug set (matching test_precedence.ml's own nothing-silently-lost test) so a candidate silently dropped or duplicated into two buckets would fail it, plus an identity check that the deferred and admission-limit reasons don't get swapped.
* kernel(calendar): the year is the primitive, the day is derivedLukasz Kasprzak2026-08-112-0/+138
| | | | | | | | | | | Transfers make per-date resolution impossible to do correctly: resolving 25 March can push a feast onto 26 March, and RG 97-98 has coinciding I-class feasts transfer in table order, which needs global knowledge. So year computes a whole liturgical year in one pass and day indexes into it. Pure, no cache, no mutable state. This commit resolves each day but does not yet place deferred transfers; they are recorded with a reason. Task 6 adds the placement pass.
* kernel(rite): bundle what a rite supplies; make season runs rite-suppliedLukasz Kasprzak2026-08-114-21/+56
| | | | | | | | | | | Validate took four loose arguments that had to come from the same rite with nothing enforcing it, and Calendar is about to add more. Bundling makes a mismatched assembly unrepresentable through the normal path. season_runs replaces the hardcoded assumption that every season occupies exactly one unbroken run. That holds for the 1962 rite but is false for the modern form's Ordinary Time, which is one season in two runs -- as written the check would have reported a false failure every year for the second rite.
* kernel: the LiturgicalDay result schemaLukasz Kasprzak2026-08-112-0/+36
| | | | | | | | Temporal is embedded rather than flattened, so season/week/weekday have one home and cannot disagree with themselves. transferred_in/out make transfers visible in the result -- an ordo must print 'transferred from the 25th', and the nothing-lost invariant reads these fields. citations exists and is empty until Plan 4; adding it later would widen a type every consumer matches on.
* kernel(precedence): rite-parameterised resolverLukasz Kasprzak2026-08-112-0/+129
| | | | | | | | | | | | Three rite-supplied functions, not one: band (who wins, RG 91), disposition (what happens to the loser, RG 92-95) and admit (how many commemorations are admitted, RG 111). The loser's fate depends on the loser's own rank, so conflating them would resist extension. resolve takes the temporal candidate separately from the sanctoral list, which makes it total by construction. Every candidate lands in exactly one of observed, commemorations, deferred or omitted -- nothing is dropped silently, which is what makes the no-celebration-lost invariant checkable.
* kernel(celebration): distinguish a feast from a commemoration-only entryLukasz Kasprzak2026-08-112-5/+20
| | | | | | | The 1960 reform reduced many feasts to a bare commemoration. They keep a rank, because RG 111 orders admitted commemorations by dignity, but they can never be the observed day. Modelled as a separate status rather than a fifth rank: RG 8 fixes the classes at four.
* kernel(validate): never raise at 9999; add anchor, determinism, vocab checksLukasz Kasprzak2026-08-112-6/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Validate.run ~year:9999 raised (year_start (year + 1) asked year_start for civil year 10000, out of the kernel's 1583..9999 domain), even though 9999 is itself in range and kernel computation must never raise on in-range input; ~year:9998 already returned zero failures. run now clamps its scan to 31 December 9999 instead of computing year_start (year + 1) when year is the domain maximum, and validates the resulting truncated final liturgical year rather than not being able to run it at all. The design spec's validation §5 lists eight checks; only five were implemented (coverage, seasons, weeks, weekday, closure). The two missing were a real gap, not just a documentation slip: - §5.7 anchor agreement. All of an EF year's Easter-derived and fixed named days were pinned only by point assertions for 2026. run now takes an ~anchors:(int -> (string * Date.t) list) parameter -- the rite's own independent restatement of those dates, paired with the slug each should carry, not derived from temporal itself -- and checks that temporal agrees on every one of them. Temporal_ef.anchors supplies EF's list. Kept rite-agnostic: the anchor list comes from the rite argument, not the kernel. - §5.8 determinism. run now calls temporal a second time for every date and checks the result is structurally equal to the first. Also, finding 8: the rank/season closure checks compare vocab entries via their _to_string images, which is only sound if those images are injective. run now checks List.map rank_to_string ranks and List.map season_to_string seasons for duplicates up front and reports a "vocab" failure if either collapses two distinct values to the same string, rather than relying on that injectivity unasserted. Test-quality fixes to the existing synthetic fixture, found while adding coverage for the above: the fixture's own comment claimed its mutation target (2026-03-15) was "not a Sunday" and "sits safely mid-run" -- it is a Sunday, which made the coverage/week mutations cascade further than documented even though the assertions still target specific check labels. Moved to a genuine mid-week day (2026-03-17) and the comment corrected. extreme_years's own test required only "found at least one" of the two Easter-extreme years; tightened to require both, since both genuinely exist in 1583..2500. Covering tests: test_year_9999_does_not_raise (would error under the old code; the fix is pinned by calling run 9999 directly with no try, plus asserting the truncated year is reported via an ordinary "seasons" failure, not silently or via coverage); anchor-clean and anchor-fires cases on the synthetic rite; a determinism-fires case using a target date whose temporal alternates what it returns across successive calls; two vocab-injectivity-fires cases (collapsed rank strings, collapsed season strings).
* rite(ef): fix duplicate slugs and omitted weeks in the temporal cycleLukasz Kasprzak2026-08-112-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two correctness bugs in Temporal_ef, both only visible across many years, not a single point assertion: 1. Duplicate slugs within one liturgical year. Christmastide has no numbered weeks, so the ferial fallback's <season>-<week>-<weekday> scheme collapsed every feria in it to literal week "0". Since colitur's Christmastide runs 25 Dec - 13 Jan (RG 72-73, a deliberate divergence from lectio), the same weekday recurs across that span and the keys collided (e.g. ef-christmas-0-saturday on three different dates). Fixed with a dedicated christmastide_feria_slug that splits the span into four sub-stretches, prioritising compatibility with lectio's own keys wherever lectio has one: - 26-28 Dec keeps lectio's existing ef-christmas-0-<weekday>. - 2-5 Jan becomes ef-christmas-1-<weekday> -- lectio collapses this indistinguishably into the same key as the stretch above, so there is nothing to preserve; a colitur-only lectionary gap. - 7-13 Jan splits at the actual first-Sunday-after-Epiphany origin: on/after it, this is genuinely week 1 of Time after Epiphany and takes lectio's own ef-time-after-epiphany-1-<weekday> (which also can't collide with that season's own later week-1 ferias, since it's the same computation). Before it (0-6 days, whenever Epiphany doesn't fall on a Saturday), a first attempt at labelling this "week 1" too, matching a literal reading of lectio's behaviour, was verified empirically (a throwaway sweep of the full 1583..9998 domain) to reproduce duplicates in most years -- so this remainder is its own ef-christmas-2-<weekday>, a further colitur-only gap. Verified with the same throwaway sweep: zero duplicate slugs across 1583..9998 after the fix. 2. named's week field was set by hand on some branches (Passion/Palm Sunday, Easter, Low Sunday, Pentecost and its Vigil, Christ the King) and left at None on others (Ascension and its Vigil, Corpus Christi, Sacred Heart) even though all of them sit inside a numbered season run. named no longer carries a week at all -- temporal now calls week itself for every day, named or not, so "a named day inside a run carries that run's week" holds by construction rather than by remembering to set it on each branch. temporal.mli's week field doc is reworded to state the actual rule. Covering tests: point assertions for all four Christmastide sub-stretches; a QCheck property scanning random years for any duplicate slug within a liturgical year (excluding the deliberate resumed-Sunday reuse); point assertions for the four previously-None days now carrying their week (first to fail without the fix: Ascension Vigil, expected Some 6, got None); a QCheck property asserting temporal's week equals week for every day of the year, replacing a prior property whose fallback made it structurally incapable of detecting an omitted week. Also: cite RG 91 e18 for the September/Advent Ember days matching lectio and flag the Lent/Whitsun Ember and Rogation slugs as colitur-only lectionary gaps inline, matching the existing Nativity-vigil/octave-day convention; cite RG 117/123/127/128/131 for season colours and Gaudete/Laetare rose; drop the unreachable Passiontide arm from the Sunday-rank match (Passiontide has only two Sundays and both are already named above, so no Passiontide Sunday ever reaches that fallback).
* kernel: loaders never escape as an exception, date-spec validates on loadLukasz Kasprzak2026-08-112-3/+23
| | | | | | | | | | | | | | | | | | | | | | Layer.load narrowed its catch to Sexplib0.Sexp_conv_error.Of_sexp_error, but rank_of_sexp is caller-supplied and may raise anything -- e.g. a hand-written rank parser that calls invalid_arg. Overlay.load already catches every exception from the equivalent call; mirror that here so layer.mli's "never as an exception" promise actually holds. Date_spec.t derived its sexp converters with plain ppx_sexp_conv, unlike Slug and Lang, which hand-write validating parsers specifically so malformed data is rejected at load. (Fixed (month 13) (day 40)) used to deserialise cleanly into a spec that simply never resolves -- a saint quietly vanishing with no diagnostic. t_of_sexp now re-runs the value through the existing fixed validator, the same shape Slug and Lang already use. Covering tests: a Layer.load case where rank_of_sexp raises Invalid_argument instead of Of_sexp_error (would have escaped uncaught before this fix); two Date_spec.t_of_sexp cases (month 13, 31 April) that must raise Of_sexp_error rather than silently constructing an unresolvable spec.
* kernel(validate): synthetic negative-path fixture; drop vacuous slug checkLukasz Kasprzak2026-08-111-8/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Task 14 review, findings 1 and 2. Finding 1: the only tests against Validate exercised the clean path against real EF data, so the evidence that each check can actually fire lived in a scratch mutation probe that was never committed. A future edit that quietly weakened a check would leave the suite green, since a weaker check only makes more inputs pass. Added a small synthetic two-season, two-rank rite fixture in test_validate.ml -- not EF -- letting each test violate exactly one invariant directly: a temporal that raises (coverage), a season that recurs (seasons), a week that decreases mid-run (week), a weekday that disagrees with Date.weekday (weekday), a rank absent from the declared vocab (rank), and a colour outside Colour.all (colour, via a same-representation Obj.magic value, safe here because the check compares by structural equality rather than pattern match). A clean-baseline test confirms the fixture itself reports zero failures before any mutation is applied. Each new test was verified non-vacuous by temporarily weakening its corresponding check in validate.ml, confirming the matching test fails, then reverting -- the same trap one level up, checked explicitly rather than assumed. Finding 2: removed the slug well-formedness check. Slug.t is a private string validated on every construction path, and to_string is the identity, so round-tripping an existing Slug.t can never fail -- the check was structurally incapable of firing. Folded the explanation into the comment block that already covers why slug uniqueness isn't checked, since it's the same kind of fact: a property the type system delivers, not one Validate needs to assert. The colour check stays: unlike slug, Colour.all is a hand-maintained list that can drift from the type, so it is only practically (not structurally) tautological, the same class as the rank closure check.
* kernel(validate): invariant harness over liturgical yearsLukasz Kasprzak2026-08-112-0/+108
| | | | | | | | | | | Coverage, season contiguity and completeness, Sunday-aligned week numbering, slug well-formedness, weekday agreement and vocabulary closure. Checks run over a liturgical year rather than a civil one, since Christmastide straddles January and would otherwise appear to recur. Run against EF temporal for landmark years, both Easter extremes, and 200 random years across 1583..9998 -- the property layer is how confidence reaches past the oracle horizon.
* fix(record): derive headers and to_row from a single columns listLukasz Kasprzak2026-08-111-4/+17
| | | | | | | | | Make alignment impossible: both headers and to_row are derived from a single list of (name, extractor) pairs, so reordering one without the other is impossible. CSV schema cannot silently mislabel columns. Add a meaningful test that pins the header names in order, not just length. This catches column reordering regressions.
* kernel(record): flat all-string canonical output viewLukasz Kasprzak2026-08-112-0/+63
| | | | | | | The boundary where rite-parametric types stop. CSV, JSON and the template engine all render from this one schema, so they never see a type variable. headers/to_row cover the scalar columns; names and citations are variable-arity and wait for the richer encoders in Plan 5.
* kernel(overlay): ordered layer-merge algebra with diagnosticsLukasz Kasprzak2026-08-112-0/+138
| | | | | | | add/suppress/replace/field-edit folded in order, last writer wins per field, empty the identity. A directive naming an unknown slug, or adding one that already exists, yields a diagnostic rather than silence or a hard failure: overlays must survive a shifted base while still surfacing authoring errors.
* kernel(layer): sanctoral layer with canonical order and date indexLukasz Kasprzak2026-08-112-0/+81
| | | | | | | Entries sort by slug so equal layers serialise identically. The by-date index is built once per layer rather than per year, since fixed dates are year-independent; a full-domain sweep would otherwise rescan every entry for every day. load turns parse and validation failures into result.
* kernel: correct false compiler-constraint claim in Celebration commentLukasz Kasprzak2026-08-111-2/+6
| | | | | | | | | | The comment explaining Celebration's single type parameter claimed OCaml rejects a type variable that appears in no field. That is false: a phantom season parameter compiles cleanly. The real reason is a design choice, not a compiler constraint -- a celebration has no season of its own (season is contextual to the day, and lives in Temporal.t), and a phantom parameter would carry no information while forcing every consumer to thread a meaningless variable.
* kernel: Vocab, Celebration and Temporal parametric typesLukasz Kasprzak2026-08-116-0/+124
| | | | | | | | Rite specificity is carried by type parameters plus a vocab record of operations rather than by functors: the same guarantee that a rite cannot name another rite's season, without threading module plumbing through every kernel module. Celebration takes only the rank parameter, since it has no season field and OCaml rejects a type variable that appears in no field.
* kernel: fix sexp deriving, add missing tests, canonicalize removeLukasz Kasprzak2026-08-116-74/+13
| | | | | | | | | | | | | Use [@@deriving sexp] with open Sexplib0.Sexp_conv instead of hand-rolling converters (fixes non-standard Citation shape and missing field validation). Names.t_of_sexp wraps derived version to enforce canonical sort on load. Add tests: - Names of_list duplicate handling - Names sexp canonical sort guarantee (identical serialization) - Names and Date_spec sexp roundtrips Fix Names.remove to canonicalize output (defensive against non-canonical input).
* kernel: Names, Citation and Date_specLukasz Kasprzak2026-08-116-0/+161
| | | | | | | Names is an open language-keyed assoc kept in canonical order so equal name sets serialise identically. Citation carries references only, never text. Date_spec ships the one form the EF sanctoral needs; 29 February is constructible and resolves to None in common years.
* kernel: Slug and Lang validated private stringsLukasz Kasprzak2026-08-114-0/+79
| | | | | | Both parse through a smart constructor returning result, and both hand-write t_of_sexp so a malformed value in a data file is rejected at load rather than silently accepted -- deriving the converter would have bypassed validation.
* kernel: Colour and Subject shared vocabularyLukasz Kasprzak2026-08-114-0/+39
| | | | | | The six liturgical colours and the Lord/BVM/saint/temporal distinction are common to both Roman forms, so they are shared closed variants rather than rite-parametric. Subject is so named because class is an OCaml keyword.
* kernel(date): ISO-8601 rendering, validating parse, sexp convertersLukasz Kasprzak2026-08-113-3/+42
| | | | | | | Adds sexplib and ppx_sexp_conv to the project and wires the ppx into the kernel library. Date's sexp form is an ISO-8601 atom rather than the opaque rata die, so data files stay human-editable and parsing revalidates the 1583..9999 domain.
* kernel(computus): Easter-relative movable-feast anchorsLukasz Kasprzak2026-07-312-0/+17
| | | | | | Ash Wednesday/Palm Sunday/Ascension/Pentecost/Corpus Christi as Easter+/-N. Verified vs 2026 dates; exhaustive weekday invariants 1583..9999 (Ash Wed=Wed, Ascension/Corpus Christi=Thu, Palm/Pentecost=Sun).
* kernel(computus): Gregorian + Julian EasterLukasz Kasprzak2026-07-312-0/+40
| | | | | | | Anonymous Gregorian (Meeus/Jones/Butcher) for OF+EF; Meeus Julian mapped to the proleptic-Gregorian date for future eastern rites. Verified vs known dates (2000/2024-27, 1583; Orthodox 2023/24) and EXHAUSTIVELY over 1583..9999: every Easter is a Sunday in [Mar22,Apr25].
* kernel(date): proleptic Gregorian date, validated make + arithmeticLukasz Kasprzak2026-07-312-0/+81
| | | | | | | Hinnant civil<->days rep (1970-epoch rata die); make validates month/day and the 1583..9999 domain; of_rata/add_days are total arithmetic. Weekday, compare. Tested: known weekdays, leap boundaries, rejects; qcheck round-trip / add-inverse / weekday-cycle properties over random in-range dates.
* chore: scaffold dune project (kernel lib + cli + tests)Lukasz Kasprzak2026-07-311-0/+2
OCaml 5.2.0 local switch; colitur_kernel library, a colitur executable stub, and an alcotest+qcheck test runner. AGPL LICENSE, README, generated colitur.opam.