langdetect-ruby

Language detection for Ruby using n-gram profiles. Supports 10+ languages with script-based fast paths for CJK, Arabic, Thai, and Devanagari.

gem "langdetect-ruby"

require "lingua_ruby"

# Single detection
result = LinguaRuby.detect("This is an English sentence")
result.language  # => :en
result.confidence  # => 0.92

# Batch detection
results = LinguaRuby.detect_batch([
  "Hello world",
  "Halo dunia",
  "こんにちは世界"
])

# Restrict to specific languages
detector = LinguaRuby::Detector.new(languages: [:en, :id, :ms])
result = detector.detect("Selamat pagi")

• N-gram profile comparison with normalized confidence (0.0-1.0)
• CJK/Arabic/Thai/Devanagari script fast-path detection
• Short text mode (< 20 chars) with higher n-gram orders
• Batch detection with single profile load
• Indonesian/Malay/Sundanese differentiation
• Input validation and error handling

MIT