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-rw-r--r--textwrap/examples/termwidth.rs41
1 files changed, 41 insertions, 0 deletions
diff --git a/textwrap/examples/termwidth.rs b/textwrap/examples/termwidth.rs
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+++ b/textwrap/examples/termwidth.rs
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+#[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!("----");
+}