class String

# File lib/portuguese_pluralizer.rb, line 85
def pluralize_portuguese
  case self
  # If the singular ends in -n just add -s
  when /\w*["#{PORTUGUESE_VOWELS}"]n$/ then self + 's'
  # If the singular ends in -m, drop -m and add -ns
  when /\w*["#{PORTUGUESE_VOWELS}"]m$/ then gsub(/m$/,'ns') 
  # If the singular ends in ãe just add -s
  when /\w*ãe$/ then self + 's'
  # If the singular ends with -ção or -são add -ões
  when /\w*[çs]ão$/ then gsub(/ão/,"ões")
  # If the singular ends with r,s,z or x...
  when /\w*[rszx]$/ 
    # If the singular ends with s or x
    if portuguese_pluralizer_last_letter == "s" or portuguese_pluralizer_last_letter == "x"
      # And the last vowel is accented, unaccent it before adding -es
      if portuguese_pluralizer_last_vowel.portuguese_pluralizer_has_accent?
        gsub!(/#{portuguese_pluralizer_last_vowel}/,portuguese_pluralizer_last_vowel.portuguese_pluralizer_unaccent)
        self + 'es'
      # But if the last vowel isn't accented and ends in s just return singular as is for plural
      else
        self
      end
    # If it doesn't end in s or x but r or z just add -es
    else   
      self + 'es'
    end
  # If ends with an unaccented vowel and l
  when /\w*["#{PORTUGUESE_NON_ACCENTED_VOWELS}"]l$/
    # And the last vowel is i or e
    if portuguese_pluralizer_last_vowel == 'i' or portuguese_pluralizer_last_vowel == 'e'
      # And if it has an accent swap the last vowel + l with -eis
      if portuguese_pluralizer_has_accent?
        gsub(/#{portuguese_pluralizer_last_vowel}l$/,"eis")
      # And if it doesn't have an acccent and the last vowel is i, swap the last vowel + l with -is
      elsif portuguese_pluralizer_last_vowel == 'i'
        gsub(/#{portuguese_pluralizer_last_vowel}l$/,"is") 
      # Otherwise if it doesn't have an accent and the the last vowel is e, give the last vowel an acute accent and add -is
      elsif portuguese_pluralizer_last_vowel == 'e'
        gsub(/#{portuguese_pluralizer_last_vowel}l$/,portuguese_pluralizer_last_vowel.portuguese_pluralizer_acute + "is") 
      end
    # If the last vowel is o and
    elsif portuguese_pluralizer_last_vowel == 'o'
      # and has an accent just turn the -l to -is
      if portuguese_pluralizer_has_accent?
        gsub(/l$/,"is")
      else
        gsub(/#{portuguese_pluralizer_last_vowel}l$/,portuguese_pluralizer_last_vowel.portuguese_pluralizer_acute + "is")
      end
    else
      gsub(/l$/,"is")
    end
  end
end

# File lib/portuguese_pluralizer.rb, line 52
def portuguese_pluralizer_acute
  PORTUGUESE_ACUTE_VOWEL_MAP.fetch(self,self)
end

# File lib/portuguese_pluralizer.rb, line 60
def portuguese_pluralizer_circumflex
  PORTUGUESE_CIRCUMFLEX_MAP.fetch(self,self)
end

# File lib/portuguese_pluralizer.rb, line 39
def portuguese_pluralizer_has_accent?
  if m = match(/["#{PORTUGUESE_ACCENTED_VOWELS}"]/)
    true
  else
    false
  end
end

# File lib/portuguese_pluralizer.rb, line 76
def portuguese_pluralizer_last_consonant
  m = match(/\w*["#{PORTUGUESE_VOWELS}"]?(["#{PORTUGUESE_CONSONANTS}"])$/)
  m[1].to_s
end

# File lib/portuguese_pluralizer.rb, line 81
def portuguese_pluralizer_last_letter
  self[-1]
end

# File lib/portuguese_pluralizer.rb, line 47
def portuguese_pluralizer_last_vowel
  m = match(/\w*(["#{PORTUGUESE_VOWELS}"])["#{PORTUGUESE_CONSONANTS}"]?$/)
  m[1].to_s
end

# File lib/portuguese_pluralizer.rb, line 68
def portuguese_pluralizer_tilde
  PORTUGUESE_TILDE_VOWEL_MAP.fetch(self,self)
end

# File lib/portuguese_pluralizer.rb, line 35
def portuguese_pluralizer_unaccent
  PORTUGUESE_UNACCENT_VOWEL_MAP.fetch(self,self)
end

# File lib/portuguese_pluralizer.rb, line 56
def portuguese_pluralizer_unacute
  PORTUGUESE_ACUTE_VOWEL_MAP.invert.fetch(self,self)
end

# File lib/portuguese_pluralizer.rb, line 64
def portuguese_pluralizer_uncircumflex
  PORTUGUESE_CIRCUMFLEX_MAP.invert.fetch(self,self)
end

# File lib/portuguese_pluralizer.rb, line 72
def portuguese_pluralizer_untilde
  PORTUGUESE_TILDE_VOWEL_MAP.invert.fetch(self,self)
end