From ac9c654e435706f50509c450aae0a0388d112df8 Mon Sep 17 00:00:00 2001
From: Robin Krahl <robin.krahl@ireas.org>
Date: Thu, 1 Jul 2021 12:16:38 +0200
Subject: [PATCH] Configure required features for examples

Instead of manually checking for required features in the hyphenation
and termwidth examples, we can configure the required features in
Cargo.toml.  This makes the examples easier to read and maintain.
---
 Cargo.toml              | 8 ++++++++
 examples/hyphenation.rs | 9 ---------
 examples/termwidth.rs   | 7 -------
 3 files changed, 8 insertions(+), 16 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 3be33f48..6893dcca 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,6 +12,14 @@ license = "MIT"
 edition = "2018"
 exclude = [".github/", ".gitignore", "benches/", "examples/", "fuzz/", "images/"]
 
+[[example]]
+name = "hyphenation"
+required-features = ["hyphenation"]
+
+[[example]]
+name = "termwidth"
+required-features = ["terminal_size"]
+
 [package.metadata.docs.rs]
 all-features = true
 
diff --git a/examples/hyphenation.rs b/examples/hyphenation.rs
index 81ef4ac9..b21fc8ac 100644
--- a/examples/hyphenation.rs
+++ b/examples/hyphenation.rs
@@ -1,14 +1,5 @@
-#[cfg(feature = "hyphenation")]
 use hyphenation::{Language, Load, Standard};
 
-#[cfg(not(feature = "hyphenation"))]
-fn main() {
-    println!("Please run this example as");
-    println!();
-    println!("  cargo run --example hyphenation --features hyphenation");
-}
-
-#[cfg(feature = "hyphenation")]
 fn main() {
     let text = "textwrap: a small library for wrapping text.";
     let dictionary = Standard::from_embedded(Language::EnglishUS).unwrap();
diff --git a/examples/termwidth.rs b/examples/termwidth.rs
index 3194068c..05b8faf1 100644
--- a/examples/termwidth.rs
+++ b/examples/termwidth.rs
@@ -1,12 +1,5 @@
-#[cfg(feature = "terminal_size")]
 use textwrap::{fill, Options};
 
-#[cfg(not(feature = "terminal_size"))]
-fn main() {
-    println!("Please enable the terminal_size Cargo feature to run this example.");
-}
-
-#[cfg(feature = "terminal_size")]
 fn main() {
     let example = "Memory safety without garbage collection. \
                    Concurrency without data races. \