From Newsgroup: comp.text.tex

Udi Fogiel submitted the

lua-calendrica

package.

Version: 0.1 2026-07-19
License: apache2

Summary description: Lua Implementation of Calendrical Calculations by Dershowitz & Reingold

Announcement text: ------------------------------------------------------------------------

lua-calendrica is a Lua port of the calendar conversion algorithms
from Calendrical Calculations: The Ultimate Edition (4th ed.) by
Reingold & Dershowitz.
It covers over 20 calendar systems including Gregorian, Julian,
Hebrew, Islamic, Chinese, Hindu (traditional and astronomical),
Mayan, Persian, Tibetan, Balinese, and more, staying close to
the structure of the book's reference implementation.

The module is purely computational with no formatting or
typesetting functionality, and has no dependencies beyond
Lua 5.3 or later.

For an example of use with typesetting in LuaTeX, see the
upcoming release of polyglossia, where support for Chinese
lunisolar calendar will be added.

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The packagerCOs Catalogue entry can be viewed at
https://ctan.org/pkg/lua-calendrica

The packagerCOs files themselves can be inspected at
https://mirrors.ctan.org/macros/luatex/generic/lua-calendrica/

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Thanks for the upload.

For the CTAN Team
Petra R|+be-Pugliese

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Please join a user group or donate to one, see https://ctan.org/lugs
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