Config does not support capital letter

[WLBF]

I am using a json file as configuration file, however I can't get correct value with c.get("Server") when there are capital letters in the key field, then I found this:

    pub fn get(&self, key_path: &str) -> Option<Value> {
        let key_expr: path::Expression = match key_path.to_lowercase().parse() {
            Ok(expr) => expr,
            Err(_) => {
                // TODO: Log warning here
                return None;
            }
        };

        self.path_get(key_expr).cloned()
    }

I am curious why it design like this, am I missing something.

[mehcode]

The idea is configuration keys should not be case-sensitive. Eg get("server"), get("SeRver") should both map to the same key.

I don't have any tests for that case and its likely I'm not ensuring keys get case folded before they get stored (which would make it impossible to get them out).

I'll make sure this works in the upcoming version.

[mehcode]

Fixed on master

[kdar]

I'm running into this issue with TOML. Per the TOML spec, TOML is case sensitive.
https://github.com/toml-lang/toml#spec
Does not make sense to force lowercase.

[mehcode]

@kdar What version of Config are you using? Latest?

https://github.com/mehcode/config-rs/blob/master/src/file/format/toml.rs#L29

That should be definitely be working.

---

I'm running into this issue with TOML. Per the TOML spec, TOML is case sensitive.

I understand. But this library is not just a TOML parser. There is a great library if you just want to do that: toml-rs. In order to be able to merge configuration properties from N sources we must be case-insensitive. Consider an environment like APP_REDIS_PASSWORD=password. We need that to overwrite configuration from a toml file such as redis = { password = "b" }.

For similar reasons, the configuration properties are not strongly typed. The source may only allow strings (like the environment) but we want to be able to get a boolean or a Date from it.

[kdar]

Alright, I'll use toml-rs. Thanks!