From: Jon Aseltine <aseltine@...>
Date: 2000-09-03T21:22:09+09:00
Subject: [ruby-talk:4760] Re: Piping in Ruby?

list.scan(pattern).collect{|i| convert(i)}.each{|i| code}



Stephen White wrote:
> 
> On Sat, 2 Sep 2000, Dave Thomas wrote:
> 
> > > I've had a brief look through Ruby's syntax, and it appears that
> > > it's possible to assign different inputs and outputs, but nothing as
> > > quick and easy as the '|' convention used in shells.
> >
> > Could you give an example of how you'd use this in Ruby?
> 
> Currently, I keep repeating this construct:
> 
>   a = []
>   list.scan(pattern) {|i| a << convert(i) }
>   a.each {|i| code }
> 
> whereas I'd like to do:
> 
>   list.scan(pattern) {|i| convert(i) } | each {|i| code }
> 
> instead. Eg, I don't need the intermediate 'a' array.
> 
> Thanks. :)
> 
> --
>   steve@deaf.org

-- 
_______________________________________________________________________
  Jonathan Aseltine     aseltine@cs.umass.edu     MAS, Umass, Amherst