1 files changed, 54 insertions, 0 deletions
diff --git a/vendor/icu_locid/examples/syntatically_canonicalize_locales.rs b/vendor/icu_locid/examples/syntatically_canonicalize_locales.rs
new file mode 100644
index 000000000..659e8eff0
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+++ b/vendor/icu_locid/examples/syntatically_canonicalize_locales.rs
@@ -0,0 +1,54 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+// A sample application which takes a comma separated list of locales,
+// makes them syntatically canonical and serializes the list back into a comma separated list.
+
+icu_benchmark_macros::static_setup!();
+
+use std::env;
+
+use icu_locid::Locale;
+
+const DEFAULT_INPUT: &str = "sr-cyrL-rS, es-mx, und-arab-u-ca-Buddhist";
+
+fn syntatically_canonicalize_locales(input: &str) -> String {
+    // Split input string and canonicalize each locale identifier.
+    let canonical_locales: Vec<String> = input
+        .split(',')
+        .filter_map(|s| Locale::canonicalize(s.trim()).ok())
+        .collect();
+
+    canonical_locales.join(", ")
+}
+
+fn main() {
+    icu_benchmark_macros::main_setup!();
+    let args: Vec<String> = env::args().collect();
+
+    let input = if let Some(input) = args.get(1) {
+        input.as_str()
+    } else {
+        DEFAULT_INPUT
+    };
+    let _output = syntatically_canonicalize_locales(input);
+
+    #[cfg(debug_assertions)]
+    println!("\nInput: {}\nOutput: {}", input, _output);
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const DEFAULT_OUTPUT: &str = "sr-Cyrl-RS, es-MX, und-Arab-u-ca-buddhist";
+
+    #[test]
+    fn ensure_default_output() {
+        assert_eq!(
+            syntatically_canonicalize_locales(DEFAULT_INPUT),
+            DEFAULT_OUTPUT
+        );
+    }
+}