whichlang.cr provides Crystal bindings for Rust’s whichlang language detection library. It detects the language of a given text.

Supported languages

• Arabic (Ara)
• Chinese (Cmn)
• German (Deu)
• English (Eng)
• French (Fra)
• Hindi (Hin)
• Italian (Ita)
• Japanese (Jpn)
• Korean (Kor)
• Dutch (Nld)
• Portuguese (Por)
• Russian (Rus)
• Spanish (Spa)
• Swedish (Swe)
• Turkish (Tur)
• Vietnamese (Vie)
• Unknown (for undetected text)

Requirements

• Linux or Mac
• Rust 1.56 or later

Installation

Add this to your shard.yml:

dependencies:  
  whichlang:  
    github: bendangelo/whichlang.cr  

Then run:

shards install  

Usage

require "whichlang"  

input = "this is the best day ever"  
Whichlang.detect(input) # => Whichlang::Lang::Eng  

# Returns nil for empty or undetectable text  
input = " "  
Whichlang.detect?(input) # => nil  

That’s it. You now have language detection in your Crystal app.