Class: Titlecaser::TitleCase

Inherits:
Object
  • Object
show all
Defined in:
lib/titlecaser.rb

Instance Method Summary collapse

Constructor Details

#initialize(string) ⇒ TitleCase 



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# File 'lib/titlecaser.rb', line 7

def initialize(string)
  @string = string
end

Instance Method Details

#convert ⇒ Object 



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# File 'lib/titlecaser.rb', line 11

def convert
  words = @string.split(' ')
  previous_word = nil
  converted_words = words.map.with_index do |word, index|
    # Take any initial punctuation character (e.g. quotes) and store it to rejoin later
    starting_punctuation = word[/\A[^\p{L}0-9]/].to_s

    # Take the rest of the word
    word = word[starting_punctuation.length..-1]

    # If it's already capitalized and NOT a minor word, leave everything as-is
    if already_capitalized?(word) && !minor_word?(word)
      word = starting_punctuation + word
    else
      # Otherwise, determine if it's a major word and handle appropriately
      if major_word?(word, index, previous_word)
        word = starting_punctuation + capitalize_word(word)
      else
        # Force a downcase if need be
        word = starting_punctuation + word.downcase
      end
    end

    # Store the word for the next iteration, as it may have useful trailing punctuation
    previous_word = word
  end

  # Put it all back together
  converted_words.join(' ')
end