From: Marko Schulz <in6x059@...>
Date: 2002-03-19T10:01:13+09:00
Subject: Re: Wanted: slick rubyesqe algorithm

On Tue, Mar 19, 2002 at 09:36:59AM +0900, David Corbin wrote:
> Say I've got a list of Objects
> 
>    [ "AB","CD",alpha,"DE",beta,gamma,"FG","HI"]
> 
> I'd like to "compress that", by concatenating adject Strings (but not 
> objects of any other type).  The above example would yield
>      
>    [ "ABCD", alpha, "DE", beta, gamma, "FGHI"]
> 
> Can anyone suggest a particular slick ruby-like solution to this?

I don't consider it a slick solution, but it is the one I came up
with:

  def stringCompress(arr)
    accu = ""
    newArr = []
    stringStarted = false
  
    arr.each do |element|
      if element.type == String
        accu += element
        stringStarted = true
      else
        if stringStarted
          newArr << accu
          stringStarted = false
          accu = ""
        end
        newArr << element
      end
    end
  
    if stringStarted
      newArr << accu
    end
  
    return newArr
  end


  stringCompress([ "AB", "CD", :alpha, "DE", :beta, :gamma, "FG", "HI"])  
       #-> ["ABCD", :alpha, "DE", :beta, :gamma, "FGHI"]


-- 
marko schulz