From: Zachary Scott <zachary@...>
Date: 2012-11-22T01:16:39+09:00
Subject: [ruby-core:49818] Re: [ruby-trunk - Feature #5010] Add Slop(-like) in stdlib and deprecate current OptionParser API

optparse is used by many programs, including other stdlib gems.

In my opinion, it would be best to keep backwards compatibility.

Why create a new gem, instead of improving the current standard library?

On Wed, Nov 21, 2012 at 10:48 AM, rosenfeld (Rodrigo Rosenfeld Rosas)
<rr.rosas@gmail.com> wrote:
>
> Issue #5010 has been updated by rosenfeld (Rodrigo Rosenfeld Rosas).
>
>
> Shyouhei, what if we create a separate mailing list to discuss and propose a new gem to replace optparser? The idea would be to invite designers and users of the current optparser alternatives (slop, clap, thor, etc) and try to come up with some gem that would satisfy most of us and put the new API in a new gem for consideration by ruby-core members.
>
> What restrictions should such a gem have to be part of stdlib? Should it remain backward compatible or could we just forget about the current optparser API? Maybe we can't get much traction from others if the former is required. I would also prefer not having to design a backward compatible API.
>
> If this idea is accepted and no one steps up to create the mailing list I could create a Google Group and invite developers to discuss a new API extracting the good parts of the alternative solutions out there and start some discussion about the pros and drawbacks of each solution and try to figure out some API that would satisfy most of us.
>
> What do you think, shyouhei?
> ----------------------------------------
> Feature #5010: Add Slop(-like) in stdlib and deprecate current OptionParser API
> https://bugs.ruby-lang.org/issues/5010#change-33402
>
> Author: rosenfeld (Rodrigo Rosenfeld Rosas)
> Status: Assigned
> Priority: Low
> Assignee: matz (Yukihiro Matsumoto)
> Category:
> Target version: next minor
>
>
> I always found the OptionParser API not as well designed as it could be.
>
> I've just found this gem:
>
> http://lee.jarvis.co/slop/
>
> Much better API and I think we should integrate it to Ruby 2.0.
>
> Take a look at the minimal example shown in OptionParser :
>
> <pre>
>   require 'optparse'
>
>   options = {}
>   OptionParser.new do |opts|
>     opts.banner = "Usage: example.rb [options]"
>
>     opts.on("-v", "--[no-]verbose", "Run verbosely") do |v|
>       options[:verbose] = v
>     end
>   end.parse!
>
>   p options
>   p ARGV
> </pre>
>
> This is the equivalent in Slop:
>
> <pre>
> require 'slop'
>
> opts = Slop.parse do
>   banner "Usage: example.rb [options]"
>   on :v, :verbose, "Run verbosely", :default => true
> end
>
> p opts.to_hash
> </pre>
>
>
> --
> http://bugs.ruby-lang.org/
>