From: David Alan Black <dblack@...>
Date: 2002-05-06T19:53:17+09:00
Subject: Re: newbie Q: how to strip blank lines from file?

Hi --

On Mon, 6 May 2002, Tobias Reif wrote:

> David Alan Black wrote:
>
>
> >   fout = File.open("snip.out", "w")
> >   File.open("snip.txt").each do |line|
> >     fout.print line if /\S/.match(line)
> >   end
>
>
> I'm not sure, but shouldn't snip.out get closed?

Yeah, probably.

> Should the following work?
>
>
> open("snip.out", "w") do |out|
>   open("snip.txt").each do |line|
>     out.print line unless /^\s+$/.match(line)
>   end
>
> end

The regex doesn't match a blank line -- you need a * instead of a +.
(Or use /\S/, but I seem to be the only fan of that :-)


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav