From: Tobias Reif <tobiasreif@...>
Date: 2002-05-06T20:33:24+09:00
Subject: Re: newbie Q: how to strip blank lines from file?

David Alan Black wrote:


> The regex doesn't match a blank line -- you need a * instead of a +.


... or use
\A\s+\z
(?)

open("out.txt", "w") do |out|
  open("lines.txt").each do |line|
    out.print line unless /\A\s+\z/.match(line)
    # both seem to work, but Dave's is the prettiest anyways :)
    # out.print line unless line.strip.empty?
  end
end

Tobi


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