lectio
======

Liturgical calendar data
------------------------
The universal General Roman Calendar data in internal/caldata/roman-calendar.ini
was bootstrapped with reference to romcal (https://github.com/romcal/romcal),
which is distributed under the MIT License, and verified against the official
General Roman Calendar. The data as committed here is lectio's own, maintained
independently.

romcal — Copyright (c) romcal contributors — MIT License.

Extraordinary Form (1962) calendar data
---------------------------------------
The 1962 universal sanctoral in internal/caldata/tridentine-calendar.ini was
generated (scripts/gen-sanctoral-ef.go) from missalemeum.com's per-date proper
API, which is built on Divinum Officium (https://divinumofficium.com) 1962 data
-- English names, rank, colour, and the proper Epistle/Gospel CITATIONS (not the
reading text). Latin names are lectio's own hand-curation. The data as committed
is lectio's, may be freely hand-edited, and carries no upstream licence.

Lectionary data (reading citations)
-----------------------------------
The Mass reading CITATIONS (scripture references, not the text) in
internal/caldata/tridentine-lectionary.ini (Extraordinary Form) and
internal/caldata/of-lectionary.ini (Ordinary Form) were compiled from
missalemeum.com (Divinum Officium data, EF), niedziela.pl (OF Christmas-season
weekdays), and catholic-resources.org (Fr. Felix Just, S.J. — the Ordinary Form
Ordinary-Time weekday lectionary via scripts/genlect-of-cr.py; the proper
weekdays of Advent, Lent and Eastertide via scripts/genlect-of-season-ferials-cr.py;
the Sunday and temporal-solemnity lectionary, all three cycles, via
scripts/genlect-of-sundays-cr.py; and the proper readings of the OF sanctoral —
feasts, solemnities and proper-reading memorials — inlined into
roman-calendar.ini via scripts/gen-of-sanctoral-readings.py). Only the references
were taken; the reading TEXT is rendered from the public-domain corpora below —
no copyrighted translation is redistributed.

OF sanctoral calendar
---------------------
The Ordinary Form universal sanctoral in internal/caldata/roman-calendar.ini was
generated (scripts/gen-sanctoral.go) from the General Roman Calendar published by
calapi.inadiutorium.cz (calendarium-romanum project) -- English/Latin names, rank
and colour -- with Polish names from niedziela.pl. The Polish names are now
complete for the universal calendar: the remaining entries were hand-curated in
the standard Polish liturgical (genitive) form. The data as committed is lectio's
own.

Scripture corpora — deuterocanon
--------------------------------
The deuterocanonical books added to the Vulgate (vul) and Douay-Rheims (drb)
corpora are public-domain texts obtained via get.bible (getbible/v2):
the Clementine Vulgate (Clementine Vulgate Project / M. Tweedale, CBCEW-
authorized, public domain) and the Douay-Rheims (Challoner), public domain.

Scripture corpora — embedding and licence
-----------------------------------------
The bible corpora are NOT covered by lectio's AGPL licence. They are separate
public-domain scripture texts, each with its own provenance, redistributed under
its own terms:

  vul  Latin Vulgate (Clementine), public domain.
  wuj  Biblia Jakuba Wujka (1599), Polish, public domain.
  drb  Douay-Rheims (Challoner), English, public domain.
  grb  Greek Septuagint / New Testament, public domain.

Only the Latin Vulgate (internal/bible/corpora/vul.tsv) is embedded in the
default binary, so a build carries no third-party scripture text beyond the
public-domain Vulgate. The remaining corpora live in
internal/bible/corpora_optional/ and are compiled in only with the "fullbible"
build tag, or loaded at runtime from the user corpora dir. Ship a fullbible
binary, or redistribute the optional corpora, only where doing so is permitted.