From: "lrlebron@..." <lrlebron@...>
Date: 2008-06-23T20:23:11+09:00
Subject: Re: changing a file inline on Windows

On Jun 21, 11:16 pm, James Dinkel <jdin...@gmail.com> wrote:
> Here is my current method for editing files:
>
> <code>
>
>   filename = File.join('path', 'to', 'file')
>   content = []
>   File.open(filename, 'r') do |file|
>     content = file.readlines
>   end
>
>   content.collect! do |line|
>     line.gsub!(/six/, "half a dozen")
>     line.chomp
>   end
>
>   File.open(filename, 'w') do |file|
>     file.write content.join($/)
>   end
>
> </code>
>
> This is expensive though, as it rewrites the entire file, even if only a
> single word in the whole file is changed.  I'm wondering if there is a
> better way to do this.
>
> James
> --
> Posted viahttp://www.ruby-forum.com/.

There was a small error in my previous post. Here a more complete
script

require 'rio'
ario = rio(filename)
ario < ario.contents.gsub(/six/, "half a dozen")