This mod allows you to extract all missing translation lines for the specified language and automatically creates an environment where you would be able to translate them.
Currently supported modules:
1) Regular translation lines via `lang` folder
2) Patchouli books
3) Enchantments for Enchantments Description
Expected workflow to work with this mod:
1) Open config, specify source and target languages. For me I choose en_us as source and ru_ru as target
2) Launch the game and run /extract translations lang/patchouli
3) Go to your resourcepacks directory and find there a new auto-generated pack with all missing translations
4) Copy files to your personal pack
5) Translate files and enable the pack
6) Run /extract again and see message in the chat that now you have all translations present.
7) Share resourcepack with your friends or add to modpack!