1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
#[cfg(feature = "hyphenation")]
extern crate hyphenation;
extern crate textwrap;
#[cfg(feature = "hyphenation")]
use hyphenation::{Language, Load, Standard};
#[cfg(feature = "term_size")]
use textwrap::Wrapper;
#[cfg(not(feature = "term_size"))]
fn main() {
println!("Please enable the term_size feature to run this example.");
}
#[cfg(feature = "term_size")]
fn main() {
#[cfg(not(feature = "hyphenation"))]
fn new_wrapper<'a>() -> (&'static str, Wrapper<'a, textwrap::HyphenSplitter>) {
("without hyphenation", Wrapper::with_termwidth())
}
#[cfg(feature = "hyphenation")]
fn new_wrapper<'a>() -> (&'static str, Wrapper<'a, Standard>) {
let dictionary = Standard::from_embedded(Language::EnglishUS).unwrap();
(
"with hyphenation",
Wrapper::with_splitter(textwrap::termwidth(), dictionary),
)
}
let example = "Memory safety without garbage collection. \
Concurrency without data races. \
Zero-cost abstractions.";
// Create a new Wrapper -- automatically set the width to the
// current terminal width.
let (msg, wrapper) = new_wrapper();
println!("Formatted {} in {} columns:", msg, wrapper.width);
println!("----");
println!("{}", wrapper.fill(example));
println!("----");
}
|
