From: "Peña, Botp" <botp@...>
Date: 2007-10-18T11:31:26+09:00
Subject: Re: extracting values from consecutive lines

From: 7stud -- [mailto:bbxx789_05ss@yahoo.com] 
# William James wrote:
# > p IO.readlines( 'input.dat').grep( /^\d/ ).
# >   map{|s| s.strip.split.map{|x| x.to_f}}.select{|a|
# >     a.first.between?(158,165) }
# 
# Better.  Still slower.

how about this,

a=[]
ARGF.each do |line|
  if line =~ /158/ .. line =~ /165/
    a << line.split.map{|x|x.to_f}
  end
end

'just joining the fun in ruby :)
kind regards -botp