From: "Brian Schröder" <ruby.brian@...>
Date: 2005-08-09T00:04:04+09:00
Subject: Re: String#to_ary and Test::Unit

On 08/08/05, David A. Black <dblack@wobblini.net> wrote:
> Hi --
> 
> On Mon, 8 Aug 2005, [ISO-8859-1] Brian Schr�der wrote:
> 
> > On 08/08/05, Trans <transfire@gmail.com> wrote:
> >>
> >> David A. Black wrote:
> >>> This message is in MIME format.  The first part should be readable text,
> >>>   while the remaining parts are likely unreadable without MIME-aware tools.
> >>>
> >>> Hi --
> >>>
> >>> On Mon, 8 Aug 2005, [ISO-8859-1] Brian Schr�der wrote:
> >>>
> >>>> Another sidenote that removes the need for to_ary completely and is a
> >>>> lot faster:
> >>>
> >>> It's not needed if it's OK just to call #each, but I thought the
> >>> #to_ary call was part of Tom's original requirement.
> >>
> >> Unfortunately David is correct. In looking more closely at your
> >> (Brian's) code offering, I see that it still uses #each. So in the
> >> context of String, the same problem arsies --I can't count on a string
> >> being iterated over by chars. I'll have to create an overriding #freq
> >> method specifically for string --and the other methods that work the
> >> same way.
> >>
> >> T.
> >>
> >>
> >
> > Yes, but why not use:
> >
> > probability_hash = "this is my string".split(//).freq
> >
> > Each object that could support to_ary can also support each, while not
> > every object that has an each makes sense with to_ary. So it would
> > seem better to me to put this functionality into the enumerable and
> > supply an enumerable.
> 
> I got the impression Tom was just trying to make things as transparent
> as possible (though given the String#to_ary infinite loop, transparent
> as possible may not be very transparent).
> 
> > Then you can even do
> >
> > module CharString
> >  def each(&block)
> >    self.split(//).each &block
> >  end
> > end
> >
> > module WordString
> >  def each(&block)
> >    self.split(/\s+/).each &block
> >  end
> > end
> >
> > charstring = "some chars"
> > class << charstring
> >  include CharString
> > end
> 
> I thought you disliked the "<<" notation :-)

Yes I do :-( 
But I like the concept!

> 
>    charstring.extend(CharString)
> 

Thank you for pointing this out, there are always so many ways to do
it and I too often stick with what I find before I find the best.

> 
> David
> 


best regards,

Brian


-- 
http://ruby.brian-schroeder.de/

Stringed instrument chords: http://chordlist.brian-schroeder.de/