rust-language-tags

Typesafe BCP47 language tag handling.

See also http://www.w3.org/International/articles/language-tags/

To compile with testdata run cargo build --features testdata and cargo test --features testdata. Using real data takes a long time to compile because of enum matching.

Features

• Parsing and formatting tags ☑
• Parts
  • Language ☑
  • Extlang ☑
  • Script ☑
  • Region ☑
  • Variant ☑
  • Extension ☐
  • Privateuse ☐
• Comparing tags ☑
• IANA registered tags ☑ (currently using real data takes many minutes to comile)
• Check if tag is valid ☐
• much more... ☐

How to use it

Create tags: rust use std::default::Default; let mut tag: LanguageTag = Default::default(); tag.language = Some(Language::De); tag.region = Some(Region::De); println!("{}", tag) // "de-DE", German as spoken in Germany

Parse tags: rust // Parse Arabic written in Latin script let tag: LanguageTag = "ar-Latn".parse().unwrap(); println!("{}", tag.script.unwrap()); // "Latn"