From: Dossy <dossy@...>
Date: 2002-07-03T02:02:54+09:00
Subject: Re: grep regex to ruby regex...

On 2002.07.03, Todd Holloway <todd@duckland.org> wrote:
> 
> I'm just about to finish up my first ruby program, but I'm
> stuck on one last part...I need equivlent of the below in ruby:
> 
> grep -v "^[[:space:]]*#" filename | grep -v '^[[:space:]]*$'
> 
> thanks in advance! I will send out final program once it's
> done.

$ cat <<-EOT >foo.rb
filename = ARGV[0]
# this is a test
File.open(filename) {
    |file|
    # some more test
    file.each_line {
        |line|   # this shouldn't get removed
        next if line =~ /^\s*#/ 
        next if line =~ /^\s*$/ 
        puts line
    }
}
EOT

$ ruby foo.rb foo.rb
filename = ARGV[0]
File.open(filename) {
    |file|
    file.each_line {
        |line|   # this shouldn't get removed
        next if line =~ /^\s*#/
        next if line =~ /^\s*$/
        puts line
    }
}

$

That help?

-- Dossy

-- 
Dossy Shiobara                       mail: dossy@panoptic.com 
Panoptic Computer Network             web: http://www.panoptic.com/ 
  "He realized the fastest way to change is to laugh at your own
    folly -- then you can let go and quickly move on." (p. 70)