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<title>colitur.git/lib/rites/rite_ef/rite_ef.mli, branch v0.9.0</title>
<subtitle>deterministic OCaml engine to compute and validate liturgical calendars for multiple rites, template-driven output to year 9999</subtitle>
<id>https://git.labunix.xyz/colitur.git/atom?h=v0.9.0</id>
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<updated>2026-08-14T23:40:54Z</updated>
<entry>
<title>ef(lectionary): the Commons, chain step 4</title>
<updated>2026-08-14T23:40:54Z</updated>
<author>
<name>Lukasz Kasprzak</name>
<email>lukas@labunix.xyz</email>
</author>
<published>2026-08-14T23:40:54Z</published>
<link rel='alternate' type='text/html' href='https://git.labunix.xyz/colitur.git/commit/?id=1299815ea03c2b1e4ff19d92d32e386fec24f4e4'/>
<id>urn:sha1:1299815ea03c2b1e4ff19d92d32e386fec24f4e4</id>
<content type='text'>
Fifteen class-3 saints had no readings anywhere in colitur -- the 6 March -
5 April cluster whose RANKS lectio's generator fix of 2026-08-12 restored
without backfilling readings, and lectio has no Commons concept to have
backfilled them from. They are exactly the fifteen `status Feast` entries in
data/ef/sanctoral.sexp carrying `(citations ())`.

The Missal splits them eight/seven, and NOT as the plan predicted. It
expected propers for Benedict, Patrick, Thomas Aquinas and Gregory the
Great; only Thomas Aquinas has one. Benedict ("Missa Os iusti, de Communi
Abbatum"), Patrick ("Missa Statuit, de Communi Confessoris Pontificis I
loco") and Gregory the Great ("Missa Si diligis me, de Communi unius aut
plurium Summorum Pontificum") are all sent to a Common, with only Oratio,
Secreta and Postcommunio printed at the date. All three reversals verified
on the page images (pp. 488, 492) as well as in both OCR text layers.

PROPERS (data/ef/adjustments.sexp, `Edit ... Set_citation`):
  thomas-aquinas         7 Mar  Sap 7:7-14      / Mt 5:13-19
  john-of-god            8 Mar  Eccli 31:8-11   / Mt 22:34-46
  forty-holy-martyrs    10 Mar  Hebr 11:33-39   / Luc 6:17-23
  cyril-of-jerusalem    18 Mar  Eccli 39:6-14   / Mt 10:23-28
  gabriel-the-archangel 24 Mar  Dan 9:21-26     / Luc 1:26-38
  john-damascene        27 Mar  Sap 10:10-17    / Luc 6:6-11
  john-of-capistrano    28 Mar  Sap 10:10-14    / Luc 9:1-6
  francis-of-paola       2 Apr  Philipp 3:7-12  / Luc 12:32-34

COMMONS (data/ef/commons.sexp), each quoting the Missal's own instruction at
the saint's date:
  sts-felicitas-perpetua  6 Mar  non Virginum I   Eccli 51:1-8,12 / Mt 13:44-52
  frances-rome            9 Mar  non Virginum II  Prov 31:10-31   / Mt 13:44-52
  gregory-the-great      12 Mar  Summ. Pontificum 1 Petri 5:1-4,10-11 / Mt 16:13-19
  patrick                17 Mar  Conf. Pont. I    Eccli 44:16-27;45:3-20 / Mt 25:14-23
  benedict               21 Mar  Abbatum          Eccli 45:1-6    / Mt 19:27-29
  isidore-of-seville      4 Apr  Doctorum         2 Tim 4:1-8     / Mt 5:13-19
  vincent-ferrer          5 Apr  Conf. non Pont. I Eccli 31:8-11  / Luc 12:35-40

Every value read in three independent places -- both OCR text layers (two
DIFFERENT printings, whose Commune Sanctorum pagination differs by 1-2, so
the data keys on heading plus Mass incipit and never on the bracketed page
number) and the rendered page images. That caught a genuine typographical
error in one printing: it gives St Gabriel's Gospel as "Luc. 2, 26-38" (on
the page image, so not an OCR artefact). Luke 1:26-38 is settled by the
other printing, by the pericope text in both, and by the SAME edition citing
the identical pericope correctly two pages later at the Annunciation.

Step 4 EXECUTES SECOND (order 1, 4, 2, 3), not last as the plan sketched.
Measured: every day on which one of the fifteen is actually the observed
office already has a non-empty step-2 or step-3 answer waiting, so a step 4
placed after the ferial fallback is unreachable on every date in 1583-9999 --
and wrong where it would fire (2038-03-06 would emit Septuagesima II
Saturday's Mass on a day whose office is Sts Perpetua and Felicity). Step 4
is also the only step in the chain with a direct primary-source warrant: the
Missal names the Mass at each such saint's own date, while steps 2 and 3 rest
only on lectio's observed behaviour. Guarded so it can never divert a day
whose observed office IS its temporal office -- ferias, Sundays, the Triduum
and the RG 78 Saturday Office of the BVM (which deliberately shares the
ferial slug) are structurally excluded. Step NUMBERS are unchanged so every
"step 3" already written down still names the same branch.

The Commons are caller-supplied, like the lectionary: `Rite_ef.context` gains
a REQUIRED `~commons`, not an optional one -- a silently-defaulted empty
table would give a rite whose class-3 saints quietly lose their Mass, and
nothing in layers 3-5 compares citations, so that loss would be invisible.
`Commons.load` rejects the four defects indistinguishable downstream from
"this saint has no Common": duplicate common id, duplicate assignment, empty
formulary, assignment naming a common that does not exist.

KNOWN LIMITS, recorded rather than papered over. There is no oracle: lectio
has no readings for these feasts and missalemeum's 2026-2027 window never
observes one of the fifteen. Eight of the fifteen are NEVER the observed
office anywhere in the domain (10-28 March always falls to a Lenten or
Passiontide feria that outranks a III-class feast), so they have no
end-to-end witness and are covered by dedicated table tests instead. The
Commune Sanctorum's own opening rubric permits any Epistle or Gospel of a
Common in any Mass of that Common unless one is assigned, so what is emitted
is the reading PRINTED WITH the named formulary, not the only lawful one;
labelled alternatives (e.g. the widow's Epistle 1 Tim 5:3-10, squarely
available to St Frances of Rome) are noted in the data and deliberately not
encoded. The BVM Common is NOT authored: the RG 78 Saturday Office shares the
ordinary ferial slug, so assigning a Common to it would hand the BVM Mass to
every feria sharing that slug; routing it needs a subject-keyed lookup and a
season-keyed choice among the Missal's five "Missae de sancta Maria in
sabbato" -- new behaviour, not new data. It currently emits its feria's Mass,
now pinned as such.

Blast radius, measured (git archive HEAD binary vs HEAD, full 1583-9999
`colitur day` sweep, diffed): ZERO differing lines, 3 074 246 lines each
side, byte-identical -- the CLI prints no citations, so this change is
invisible to layers 2-5 by construction, and the sanctoral overlay perturbed
nothing else.

357 tests green (344 before), 358 with the exhaustive sweep. Mutation-tested
six ways, all reverted after confirming: relegating step 4 to last reddens
exactly the four step-4 pins and nothing else; corrupting a Common's citation,
dropping an assignment, dropping a proper Edit, and corrupting either an
unreachable proper or an unreachable Common each redden their own pins. The
load-bearing assertion is stated over the loaded layer rather than a
hard-coded list: every sanctoral entry that can ever BE the observed office
now has either a proper or an assigned Common -- fifteen failures before,
zero after, and a future re-bootstrap adding a readingless class-3 feast
fails there instead of silently emitting its feria's Mass.
</content>
</entry>
<entry>
<title>ef(lectionary): a feria says the preceding Sunday's Mass</title>
<updated>2026-08-14T22:50:16Z</updated>
<author>
<name>Lukasz Kasprzak</name>
<email>lukas@labunix.xyz</email>
</author>
<published>2026-08-14T22:50:16Z</published>
<link rel='alternate' type='text/html' href='https://git.labunix.xyz/colitur.git/commit/?id=ba0adbaf3176ff753312d7052d0dc2795ac55dc9'/>
<id>urn:sha1:ba0adbaf3176ff753312d7052d0dc2795ac55dc9</id>
<content type='text'>
Chain step 3. Guarded on weekday &lt;&gt; Sun: a Sunday reaching this branch
would look up its own slug via days_since_sunday Sun = 0 and loop --
every other chain step consults data, this one consults a strictly
earlier date, so that guard is the whole chain's termination argument.
Reaches the Sunday by Date.add_days plus a fresh temporal_at call, never
by string surgery on the day's own slug -- the slug shapes are genuinely
inconsistent across seasons (ef-advent-sunday-1 vs ef-advent-1-monday,
week number on opposite sides of the season name).

Uses the preceding Sunday's TEMPORAL slug, never its observed one: the
rubric is the preceding Sunday's Mass even in a year a feast displaced
that Sunday from being observed (pinned: 2028-12-26, the Monday after a
Vigil-displaced Advent IV Sunday, still takes Advent IV's Mass).

Measured over the full 1583-9999 domain (temporal cycle only, no
sanctoral contest): of 412 distinct temporal slugs, 305 carry no
lectionary entry of their own; of the 304 that are feria (non-Sunday)
slugs, step 3 alone resolves 297 of them via their preceding Sunday.
The 7 that remain, plus the 1 uncovered Sunday slug itself
(ef-holy-name-sunday), all trace to the same two missing lectionary
entries (Holy Name Sunday and 30 December), not to eight independent
gaps or a step-3 defect -- traced date-by-date, not merely counted.
Day-level effect, 2005-2050 (full Precedence+Calendar pipeline,
matching this project's existing differential window): 16807 days,
16531 resolved (98.36%), 276 still empty; step 3 alone accounts for
4503 of the resolved days, more than either step 1 or step 2.

Warrant is the same class as step 2's, not a confirmed Missal
citation: lectio hard-codes this shape as literal duplicated data on
the four Advent ferias (Advent I's own readings copied onto the
following Monday-Thursday) and leaves the rest of that same shape
simply absent; step 3 turns the duplication into a rule.

dune test --force: 344 tests, all green (was 340).
</content>
</entry>
<entry>
<title>kernel+ef: fix round 1 -- lectionary caller-supplied, not eager</title>
<updated>2026-08-14T22:36:43Z</updated>
<author>
<name>Lukasz Kasprzak</name>
<email>lukas@labunix.xyz</email>
</author>
<published>2026-08-14T22:36:43Z</published>
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<id>urn:sha1:f8d694d0cc19b71598e1ab64254efb069969f0a0</id>
<content type='text'>
Critical (coordinator review): a clean `dune build` produced a `colitur`
that died at startup on EVERY subcommand, including ones touching no
lectionary data at all. Root cause was two-fold: data/ef/lectionary.sexp was
never added to the root default-build alias (only materialised as a side
effect of the test suite's own deps, which is why every check in the prior
report passed), and Rite_ef.context loaded it as a module-init side effect
via failwith, undoing Lectionary.load's own "never raises" promise at a
point no caller could catch.

Fixed structurally: Rite_ef.context is now a function taking ~lectionary,
Lectionary_ef.readings takes ~lectionary, and neither touches the filesystem
any more -- the same caller-supplied discipline the sanctoral layer already
had, restoring rite_ef.mli's own pre-existing claim about it and leaving a
seam for a future diocesan lectionary overlay. bin/main.ml grows
load_ef_lectionary, a sibling of load_ef_layer, routed through the same
colitur: %s / exit 2 path. data/ef/lectionary.sexp added to the root default
alias. Every caller of Rite_ef.context updated to supply it.

Also: two new tests that genuinely distinguish chain step 1 from step 2
(19 March 2026, Joseph's own proper over a competing temporal entry; 13
January 2030, Holy Family reached only through the temporal slug, the
Baptism entirely absent) -- the prior two tests both survived swapping the
chain order. Both new pins verified directly against the real data. The
chain's own comment now states plainly that its warrant is lectio's observed
behaviour, not a confirmed Missal citation, per the rules register's own
open item.
</content>
</entry>
<entry>
<title>kernel+ef: resolve readings, chain steps 1 and 2</title>
<updated>2026-08-14T22:16:35Z</updated>
<author>
<name>Lukasz Kasprzak</name>
<email>lukas@labunix.xyz</email>
</author>
<published>2026-08-14T22:16:35Z</published>
<link rel='alternate' type='text/html' href='https://git.labunix.xyz/colitur.git/commit/?id=124d7e2261c721c4a49f7203efc276088c7cb217'/>
<id>urn:sha1:124d7e2261c721c4a49f7203efc276088c7cb217</id>
<content type='text'>
Liturgical_day.citations has read "always empty until Plan 4" since Plan 3;
it is now filled. Rite.t gains a readings function, rite-supplied for the
same reason transfer_target is: what a day with no proper falls back to is a
rubric, not a universal. Calendar calls it and passes its own temporal
function as the callback the rite needs to reach another date.

Steps 1 and 2 only: the observed celebration's own proper, else the day's own
temporal slug. Nothing encodes "Lent has daily propers" -- the presence of an
entry is the discriminator.
</content>
</entry>
<entry>
<title>cli: colitur day &lt;year&gt; dumps resolved liturgical days</title>
<updated>2026-08-11T22:44:36Z</updated>
<author>
<name>Lukasz Kasprzak</name>
<email>lukas@labunix.xyz</email>
</author>
<published>2026-08-11T22:44:36Z</published>
<link rel='alternate' type='text/html' href='https://git.labunix.xyz/colitur.git/commit/?id=7f183c847f8b67c88ad6ea3bf2d635c5c0534651'/>
<id>urn:sha1:7f183c847f8b67c88ad6ea3bf2d635c5c0534651</id>
<content type='text'>
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 &lt;year&gt;: 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).
</content>
</entry>
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