How can I create decompose file(meta/chn_decompose.json) for another language? Japanese in my case. about lffont HOT 2 CLOSED

Thanks for your question.
Unfortunately, there is no silver bullet to decomposition mappings.

For instance, we built the Chinese character decomposition table by using the following public CCD table
https://commons.wikimedia.org/wiki/Commons:Chinese_characters_decomposition

For complete-compositional languages such as Korean and Thai,
we parse Unicode to extract the component labels as follows:

• Korean: https://github.com/clovaai/dmfont/blob/master/datasets/kor_decompose.py#L29-L44
• Thai: https://github.com/clovaai/dmfont/blob/master/datasets/thai_decompose.py#L83-L101

For Japanse, as far as I know, you can use the CCD table for Kanji (there might be missing items in the CCD table, but as far as I know, most characters in popular Kanji are covered by the CCD table).

For Kana (Hiragana, Katakana), to my knowledge, there is no specific decomposition rule by its design. Hence, I suggest you manually build a new decomposition table for Kana (e.g., dakuten) or treat them as an "atomic" (i.e., a character has only one component) for convenience.

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Closing the issue, assuming my answer resolves the problem.
Please re-open the issue as necessary.

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