Hi, There are lots of variant fields mapping characters in the Unihan database. Do any of the fields (or a combination) reproduce the Japanese kyūjitai↔shinjitai (“old character forms”/“new character forms”) mappings, as present in the standard Jōyō Kanji-hyō table[1]?
I looked around but failed to find documentation about this. I’ve tried extracting data from the Jōyō PDF[2], and from a quick look, it seems these pairs might be present in Unihan in either direction as one or more of kTraditionalVariant, kZVariant, kSemanticVariant, kSpecializedSemanticVariant, or kCompatibilityVariant. 22 pairs apparently aren’t present at all (namely the shinjitai characters 壱 艶 穏 巻 挙 郷 勲 鶏 研 県 鉱 渋 嬢 挿 対 滝 闘 弐 悩 錬 and two of the three 弁 mappings); but I double-checked my list and they’re all in the Jōyō list. If the shinjitai/kyūjitai information isn’t available in Unicode, would it considered relevant enough to add? I don’t know what I’m doing, so please forgive me if I’m missing something obvious. References: [1] http://www.bunka.go.jp/kokugo_nihongo/jyoyokanji_kokuji.html [2] http://namakajiri.net/kanjigen/shinjitai.txt

