text: /**
   * Special language-specific overrides.
   *
   * Source: ftp://ftp.unicode.org/Public/UCD/latest/ucd/SpecialCasing.txt
   *
   * @type {Object}
   */
  var LANGUAGES = {
    tr: {
      regexp: /\u0130|\u0049|\u0049\u0307/g,
      map: {
        '\u0130': '\u0069',
        '\u0049': '\u0131',
        '\u0049\u0307': '\u0069'
      }
    },
    az: {
      regexp: /[\u0130]/g,
      map: {
        '\u0130': '\u0069',
        '\u0049': '\u0131',
        '\u0049\u0307': '\u0069'
      }
    },
    lt: {
      regexp: /[\u0049\u004A\u012E\u00CC\u00CD\u0128]/g,
      map: {
        '\u0049': '\u0069\u0307',
        '\u004A': '\u006A\u0307',
        '\u012E': '\u012F\u0307',
        '\u00CC': '\u0069\u0307\u0300',
        '\u00CD': '\u0069\u0307\u0301',
        '\u0128': '\u0069\u0307\u0303'
      }
    }
  }
  
  /**
   * Lowercase a string.
   *
   * @param  {String} str
   * @return {String}
   */
  module.exports = function (str, locale) {
    var lang = LANGUAGES[locale]
  
    str = str == null ? '' : String(str)
  
    if (lang) {
      str = str.replace(lang.regexp, function (m) { return lang.map[m] })
    }
  
    return str.toLowerCase()
  }
  