Data license: CC BY-SA 2.1 Japan
=================================

This project is licensed in two parts. The source code is MIT — see LICENSE.
The bundled data described below, including the generated table compiled into
the published bundle, is CC BY-SA 2.1 Japan and is NOT covered by LICENSE.

This package bundles data derived from the MJ Shrink Map (MJ縮退マップ),
published by the Character Information Technology Promotion Council
(文字情報技術促進協議会) / Information-technology Promotion Agency, Japan (IPA).

  Title:    MJ縮退マップ (MJ Shrink Map)
  Version:  1.2.0 (issued 2018-01-26)
  Creator:  独立行政法人情報処理推進機構 (IPA)
  Source:   https://moji.or.jp/mojikiban/map/
  License:  Creative Commons Attribution-ShareAlike 2.1 Japan
            https://creativecommons.org/licenses/by-sa/2.1/jp/

This package also bundles the MJ Character Information List (MJ文字情報一覧表),
Ver.006.02, from the same source and under the same license, used to resolve
Unicode code points and IVS/SVS variation sequences for MJ glyph names:

  Source:   https://moji.or.jp/mojikiban/mjlist/
  License:  Creative Commons Attribution-ShareAlike 2.1 Japan
            https://creativecommons.org/licenses/by-sa/2.1/jp/

See data/snapshot/PROVENANCE.md for exact file versions, retrieval dates, and
SHA-256 hashes of the snapshots kept in this repository.

Files under this license
------------------------

In the published npm package, the licensed data is not shipped as a separate
data file: it is compiled into the JavaScript bundles. The files carrying it
are:

- dist/index.js  (ESM bundle; embeds the derived conversion tables)
- dist/index.cjs (CommonJS bundle; same data)

Also included in the package for provenance, and likewise under this license:

- data/snapshot/PROVENANCE.md (source, version, retrieval date and SHA-256 of
  each original file)

In the source repository (https://github.com/tomatomerde/itaiji-normalize) the
same data additionally exists as:

- data/snapshot/MJShrinkMap.1.2.0.json (original snapshot, unmodified)
- data/snapshot/mji.00602.xlsx (original snapshot, unmodified)
- data/generated/mji-list.tsv (mechanical extraction of the snapshot above)
- src/generated/tables.ts (derived work: a compact re-encoding of the
  relations recorded in the two files above, and the file that is compiled
  into the dist bundles listed above)

What ShareAlike (SA) means for you
-----------------------------------

CC BY-SA is a share-alike license: works you create that incorporate this
data (including src/generated/tables.ts, and any transformation of it) must,
when distributed, be licensed under CC BY-SA 2.1 Japan (or a license the
Creative Commons organization has designated as compatible) and must credit
IPA as above. This requirement attaches to the data and its derivatives —
it does not extend to the MIT-licensed source code that reads and processes
the data (see LICENSE), only to the data itself and re-encodings of it.

If you are unsure whether your use of this package triggers the ShareAlike
obligation, consult the license text at the URL above or seek your own legal
advice; this file is a summary, not a substitute for the license.