From: William James <w_a_x_man@...>
Date: 2005-10-08T09:21:49+09:00
Subject: Re: Code for title-casing (US) snail addresses?


rpardee@gmail.com wrote:
> And thanks again!
>
> If I can beg your indulgence a bit further... I'm having trouble
> elaborating this so it does the right thing for street names like
> 'McGrath'.  The simpler version is:
>
> def prettify(address)
>    abbreviations  = %w(PO NE NW SE SW)
>    prefixes2      = %w(Mc O' D')
>    prefixes3      = %w(Mac)
>    address.gsub!(/(\d)([A-Z]+)/) { $1 + $2.downcase }
>    address.gsub(/[A-Z]+/) do |w|
>       # abbreviations.include?(w) ? w :  w.capitalize
>       if abbreviations.include?(w) then
>          w
>       else
>          w.capitalize
>       end
>    end
> end
>
> Which works admirably, except it gives back "Mcgrath", rather than
> "McGrath".
>
> I *thought* I'd be able to tack a second Array.include? on there, like
> so:
>
> def prettify(address)
>    abbreviations  = %w(PO NE NW SE SW)
>    prefixes2      = %w(Mc O' D')
>    prefixes3      = %w(Mac)
>    address.gsub!(/(\d)([A-Z]+)/) { $1 + $2.downcase }
>    address.gsub(/[A-Z]+/) do |w|
>       # abbreviations.include?(w) ? w :  w.capitalize
>       if abbreviations.include?(w) then
>          w
>       else
>          w.capitalize
>       end
>       if prefixes2.include?(w[0..1]) then
>          w[2..2] = w[2..2].upcase
>       end
>    end
> end
>
> But when I do that, calls like prettify("20 E MCGRAW ST") just return
> "20"
>
> I've read over the gsub docs, but don't see why the above does not work
> as expected.  Anybody got a clue for me?
>
> Thanks!
>
> -Roy


def prettify(address)
   abbreviations  = %w(PO NE NW SE SW)
   prefixes      = %w(Mc O' D' Mac)
   address.gsub(/\S+/) do |w|
      case
        when abbreviations.include?(w)
           w
        when w =~ /^\d/
           w.downcase
        else
           w = w.capitalize
           prefixes.inject(w){|wrd,pre|
              wrd[pre.size,1]=wrd[pre.size,1].upcase if
                wrd.index(pre)==0
              wrd
           }
        end
   end
end