Module: AcceptLanguage::Parser

Defined in:
lib/accept_language/parser.rb

Overview

Note:

Parse an Accept-Language header value into a hash of tag and quality.

Examples:

AcceptLanguage::Parser.call('da, en-gb;q=0.8, en;q=0.7') # => { da: 1.0, "en-gb": 0.8, en: 0.7 }

See Also:

Class Method Summary collapse

Class Method Details

.call(raw_input, two_letter_truncate: false) ⇒ Object 



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# File 'lib/accept_language/parser.rb', line 9

def self.call(raw_input, two_letter_truncate: false)
  raw_input.to_s.delete(' ').split(',').inject({}) do |hash, lang|
    tag, quality = lang.split(/;q=/i)
    next hash if tag.nil?

    tag = tag.downcase.to_sym

    if two_letter_truncate && tag.length > 2
      tag = tag[0, 2].to_sym
      next hash if hash.key?(tag)
    end

    quality = quality.nil? ? 1.0 : quality.to_f
    hash.merge(tag => quality)
  end
end