Module: Jekyll::TranslateKey

Defined in:
lib/jekyll-open-sdg-plugins/translate_key.rb

Instance Method Summary collapse

Instance Method Details

#t(key) ⇒ Object

Takes a translation key and returns a translated string according to the language of the current page. Or if none is found, returns the original key.



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# File 'lib/jekyll-open-sdg-plugins/translate_key.rb', line 9

def t(key)

  # Determine the language of the current page.
  site = @context.registers[:site]
  translations = site.data['translations']
  language = @context.environments.first["page"]['language']
  translated = opensdg_translate_key(key, translations, language)

  # Stop now if we do not have a string.
  unless translated.is_a?(String)
    return translated
  end

  # Also look for references to site configuration within the translation,
  # as "%" parameters.
  translated = translated.gsub(/%([a-zA-Z0-9_.]+)/) do |match|
    # Special case for trailing dots.
    trailing_dot = match.end_with?('.')
    key_candidate = match.delete_suffix('.').delete_prefix('%')
    # Check to see if it is a site configuration.
    translated_word = opensdg_parse_site_config(key_candidate, site)
    # Check to see if the value of the site config may have been
    # a translation key itself. But do a safety check to avoid
    # infinite loops.
    if translated_word != key
      translated_word = opensdg_translate_key(translated_word, translations, language)
    end
    # Replace the word if something changed.
    if key_candidate != translated_word
      match = translated_word
      # Making sure to add back any trailing dots.
      if trailing_dot
        match = match + '.'
      end
    end
    match
  end

  return translated
end