From: Tiago Nogueira <tjnogueira@...>
Date: 2008-12-24T11:17:16+09:00
Subject: Re: [ANN] Grepper: object-oriented grepping

David A. Black escreveu:
> Hi --
>
> If you feel the need to do simple object-oriented grepping, have a
> look at the Grepper class, which is in a project I've started on
> RubyForge (http://rubyforge.org/projects/grepper/). You give a Grepper
> object a list of files, a pattern, some options... and it creates a
> result set, which you can then walk through.
>
>   g = Grepper.new
>   g.files = %w{ one.txt two.txt three.txt }
>   g.options = %w{ B2 }   # two lines of before-context
>   g.run
>
>   g.results.each do |file, result|
>     result.matches.each do |lineno,before,line,after|
>
>   etc.
>
> There's also a Formatter, which does its best to emulate standard
> grep(1) output. In fact the whole thing started as an experiment in
> implementing grep in Ruby. I then decided to create a layer that just
> did the grep logic, on top of which I could build the output
> formatting and so forth.
>
> Let me know if any bugs, questions, etc.
>
>
> David
>
Hi David,
Very cool your idea! I will take a look and make some codes to see the 
power of the Grepper.
Hugs,
 - Tiago