titleize a hyphenated name

Question

Rails' titleize method removes hyphens, and Ruby's capitalize method does not capitalize the word that comes after a hyphen. I want something like the following:

"mary-joe spencer-moore" => "Mary-Joe Spencer-Moore"

"mary-louise o'donnell" => "Mary-Louise O'Donnell"

Answer 1

Check Titelize implementation and from it you can get:

"mary-joe spencer-moore".humanize.gsub(/\b('?[a-z])/) { $1.capitalize }

will give you => "Mary-Joe Spencer-Moore"

and you can write a function for it in string class, Add to intalizers:

class String
  def my_titleize
    humanize.gsub(/\b('?[a-z])/) { $1.capitalize }
  end
end

and then from your code:

"mary-joe spencer-moore".my_titleize

Answer 2

You could also get the desired result by splitting up your string and titleizing the sections separately:

"mary-louise o'donnell".split('-').map(&:titleize).join('-')