Encoding into a String? about data-encoding HOT 6 CLOSED

Hi, you should be able to use this function depending on your use-case. Could you tell me a bit more if that function doesn't satisfy your need? Thanks!

from data-encoding.

Sorry for not being clear enough: I am wondering if there is a way to write into a &mut String without allocating an intermediary String. Thanks.

from data-encoding.

I see, indeed this is a missing feature. If I understand correctly, you are suggesting adding something like:

/// Appends the encoding of `input` to `output`
pub fn encode_mut_string(&self, input: &[u8], output: &mut String)

This looks like a useful function. I will need to think a bit about the naming and see if I don't merge it with encode_mut using a trait for the supported output types.

When would you need such function?

In the meantime, I guess you already use something similar to this as a workaround.

from data-encoding.

I am building a String which I then use elsewhere. I could make it a Vec instead, but that would mean I have to check that it's correct UTF-8 later, OR I could just use your workaround (which I am not using, so thanks!). Thanks for the help, it's a really nice crate.

from data-encoding.

No problem, thanks! I'll take a look at it when I get time.

Indeed, users should not have to use Vec instead of String for output of encoding functions. In particular, data-encoding provides the guarantee that output is ASCII, so the unsafe code should be hidden in the library so that users can use a safe API.

from data-encoding.

data-encoding 2.3.0 has been released and provides an encode_append function as requested. If anything is wrong, please reopen the issue. Thanks for the initial feedback!

from data-encoding.