Create modern, flexible system for handling arbitrary dictionaries

[melink14]

More than just updating the old dat and idx files I think it would be good to have a system with the following properties:

1. Fast to load and query. Maybe indexeddb would fit this or another JS database.
2. Able to process and load dictionaries from inside the app. This would allow:
   A. Easily supporting non english languages.
   B. Supporting niche dictionaries like computer terms or J-J
   C. Letting people update even when I was slow.

I wouldn't want the system to require the user to update by themselves though so perhaps I would want an autoupdating feature for common sources.

One thing to think about when defining the goals is what types of looks up we may want.

[melink14]

Various leads:
encoding converter which could convert utf-8:
https://github.com/ashtuchkin/iconv-lite

chrome download API for serializing dictionaries. (Might not be useful to serialize outside of extension)
https://developer.chrome.com/extensions/downloads#method-download

Utility for import-export of indexeddb in case we need to prepare it inadvance.
https://www.npmjs.com/package/indexeddb-export-import

Dexie for making it easier to work with indexeddb
https://github.com/dfahlander/Dexie.js

indexeddb docs
https://developers.google.com/web/ilt/pwa/working-with-indexeddb

3rd party JS database which hasn't been developed in years but might be better than indexeddb
https://github.com/louischatriot/nedb

Plain dictionary?
https://stackoverflow.com/questions/10017808/best-data-structure-for-implementing-a-dictionary#:~:text=An%20alternative%20compact%20representation%20is,excellent%20data%20structure%20to%20consider.

Dictionary information

http://nihongo.monash.edu/wwwjdicinf.html#dicfil_tag
http://www.edrdg.org/jmdict/edict_doc.html#IREF04
https://www.edrdg.org/jmdictdb/cgi-bin/entr.py?svc=jmdict&sid=&disp=ed&e=2058990

[melink14]

Epwing format specifically is filed at #146

[melink14]

Dixie specific import/export: https://www.npmjs.com/package/dexie-export-import

[melink14]

Yomichan format is in indexedDB so supporting that format directly might be the way to go.

[melink14]

https://github.com/FooSoft/yomichan-import

[melink14]

Yomichan format is published as json schemas: https://github.com/FooSoft/yomichan/tree/master/ext/data/schemas
Can use https://www.npmjs.com/package/json-schema-to-typescript to generate types for the json for easier use though might not be useful if just immediately saving them to indexDB.

Though perhaps the schemas can also be used to generate types for Dixie type safe Indexeddb access.

To generate dictionaries I can use https://github.com/actions/setup-go to build latest yomichan and then do something similar to https://github.com/FooSoft/yomichan-import/blob/master/scripts/build_dicts.sh in order to build dictionaries.

json validator: https://ajv.js.org/guide/getting-started.html