Function textwrap::wrap

pub fn wrap(s: &str, width: usize) -> Vec<String>

Wrap a line of text at width bytes and return a vector of lines.

use textwrap::wrap;

assert_eq!(wrap("Concurrency without data races.", 15),
           vec!["Concurrency",
                "without data",
                "races."]);

assert_eq!(wrap("Concurrency without data races.", 20),
           vec!["Concurrency without",
                "data races."]);