Function next_nonempty_line

rust/py_repl_host/src/main.rs:119–130

(input: &mut I)

}

fn next_nonempty_line<I>(input: &mut I) -> io::Result<Option<String>>
where
    I: Iterator<Item = io::Result<String>>,
{
    for line in input {
        let line = line?;
        if !line.trim().is_empty() {
            return Ok(Some(line));
        }
    }
    Ok(None)
}

fn relay_exec<I, W>(
    exec_id: &str,