class String
Extending base String
class with ‘.acronyms`
Public Instance Methods
acronyms()
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# File lib/acronyms.rb, line 6 def acronyms return [] if empty? split = self.split(/[\s\-]/) romans = %w(I II III IV V VI VII VIII IX) # If a word is a roman numeral, we keep it, othewise we take the first # letter acronym = split.map do |word| romans.index(word).nil? ? word[0] : word end acronym = acronym.join('') # If a word is a roman numeral, we convert it, otherwise we take the first # letter acronym_roman = split.map do |word| roman_index = romans.index(word) !roman_index.nil? ? roman_index + 1 : word.upcase[0] end acronym_roman = acronym_roman.join('') [acronym, acronym_roman].uniq end