How about using a JSON Schema to validate ini files?

[ssbarnea]

As for YAML files you can already use a JSON schema to validate them, it should be possible to perform some basic validation on ini files using the same kind of schema.

You could inspire from two other extensions that do add JSON schema based validation to other file formats:

• YAML extension
• TOML extension

[EmilyGraceSeville7cf]

I like this idea. But I don't know what to do with nesting sections. Wiki says that it depends on ini parser. So maybe it's better to support no nesting (just plain keys) out of the box. 🤔

[ssbarnea]

At least for start i would assume no nesting because original ini never supported nesting. Nesting should not be part of the "MVP".