From: Jim Menard <jim.menard@...>
Date: 2005-08-25T02:59:22+09:00
Subject: Re: ruby way for piece of code

On 8/24/05, Alexandru Popescu <the.mindstorm.mailinglist@gmail.com> wrote:
> #: Jim Menard changed the world a bit at a time by saying on  8/24/2005 7:41 PM :#
> > The code that replaces
> >     tag: a b c d b
> > with
> >     tag: [[a => a]] [[b => b]] [[c => c]] [[d => d]]
> > could be written
> >
> >   new_content << 'tag:'
> >   line.split[1..-1].uniq.each { | tag | new_content << " [[#{tag} => #{tag}]]" }
> >
> > Jim
> 
> Nice but it misses the case where one of the tags where already changed.

Aah, alreadh changed on any previous line. Got it.

  done = []      # at the beginning, before any lines processed

  new_content << 'tag:'
  tags = line.split[1..-1]..each { | tag |
    unless done.include?(tag)
      new_content <<   " [[#{tag} => #{tag}]]"
      done << tag
    end
  }

Jim
-- 
Jim Menard, jim.menard@gmail.com, jimm@io.com
http://www.io.com/~jimm