From: William Morgan <wmorgan-ruby-talk@...>
Date: 2005-04-20T08:34:33+09:00
Subject: Re: Modifying content in a file

Excerpts from Ghislain Mary's mail of 18 Apr 2005 (EDT):
> def clean_file(filename)
>   # Define the new caption
>   caption = "caption: new caption"
> 
>   # Process the content of the file
>   File.open(filename) do |from_file|
>     File.open(filename + ".new", 'w') do |to_file|
>       from_file.each do |line|
>         case
>           when line =~ /^caption:.*$/: line.sub!($&, caption)
>         end
>         to_file.print line
>       end
>     end
>   end
> 
>   # Rename the file
>   File.delete(filename)
>   File.rename(filename + ".new", filename)
> end

Sure, here's a two line version:

def clean_file(filename)
  caption = "caption: new caption"
  system %%ruby -i -pe '$_.gsub! /^caption:.*$/,"#{caption}"' #{filename}%
end

(heh heh heh...)

-- 
William <wmorgan-ruby-talk@masanjin.net>