print ubyte[] as (ascii) string

[frame]

On Friday, 7 January 2022 at 22:04:28 UTC, eugene wrote:

> There are 2 buffers (RX one and TX one, both of 'reasonable' 
> size)
> (it's the effing echo-server, nothing more)
>
> * print content of RX-buffer, ommiting terminating '\n' ('\n' 
> is the 'end of request') to (log/journal file)/stdout/
>
> * ouptut received 'message' back to client, _with_ terminating 
> '\n'

However, you should not rely on a terminating '\n' even you are 
the source. You determine the length of string trough '\n'  but 
maybe your buffer doesn't contain it (yet) if the connection 
wasn't blocking or the message is longer as the buffer size or 
you received just error data.

Then, accessing the ubyte[] data directly via `.ptr`/ casting it 
to char* without knowing the possible content seems not a good 
idea - if you are using any function that returns bytes till it 
finds a needle or terminating '\0'.

I know it's a little bit off topic but if the question is about 
the best concise way, the solution you choose should respect that 
too.